KR20140102671A

KR20140102671A - Shearing machine

Info

Publication number: KR20140102671A
Application number: KR1020147015685A
Authority: KR
Inventors: 다다오 우에스기
Original assignee: 가부시키가이샤 헤이안 세이사쿠쇼
Priority date: 2011-12-14
Filing date: 2011-12-14
Publication date: 2014-08-22
Also published as: WO2013088531A1; JPWO2013088531A1; CN103998168A; JP4979841B1; CN103998168B

Abstract

The rotary drums 12 and 14 having the grooves 16 and 18, the cutting blades 20 and 22 provided in the grooves 16 and 18, and the fixing blades 20 and 22, A pair of adjustment blocks 32 and 34 for fixing the cutting blade 22 and the cutting blade 22 to the groove 18 and a pair of adjustment blocks 32 and 34 for screwing one end side to the fixing block 28 and the other end side to the rotary drum 12 A screw member 30 for a fixed block to be screwed on and a pair of screw members for a control block which are screwed to one pair of the adjustment blocks 32 and 34 and the other end is screwed to the rotary drum 14, And the adjustment blocks 32 and 34 are configured to be movable in the axial direction of the screw member 30 for the fixed block and the screw members 36 and 38 for the adjustment block, 38 in the axial direction.

Description

SHEARING MACHINE

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shearing machine and, more particularly, to a shearing machine in which a cutting blade is mounted on a rotating body of a drum type (hereinafter referred to as a rotary drum) The present invention relates to a shearing machine for cutting a workpiece such as a steel plate, a plated steel plate, a stainless steel plate, a metal plate such as an aluminum steel plate, a corrugated board, a paper or a film by shearing.

In the conventional shearing machine as the background of the present invention, a knife is attached to each peripheral surface of two drums rotated in opposite directions, and by engagement of both knives by rotation of both drums, There was a rotary drum shear to cut the cutting material. In this rotary drum shaft, a mounting surface is formed on the peripheral surface of the upper and lower drums in a spiral manner, and the upper and lower drums are fixed by a plurality of bolts (hereinafter, referred to as fixing bolts) A plurality of adjusting bolts and adjusting nuts are provided behind the upper and lower knives to adjust the position of the knife (see, for example, Patent Document 1).

Japanese Patent Application Laid-Open No. 60-48212 (third aspect, see Fig. 3)

However, in this conventional rotary drum shaper, the upper and lower knives are directly fixed to the mounting surface by the fixing bolts, and the positions of the upper and lower knives are adjusted by the adjusting bolt and the adjusting nut. It is very difficult to attach and detach the knife necessary for changing the type or size of the knife or for replacing the knife by abrasion or polishing of the knife cutting edge and adjusting the positions of the clearance and the lap of the upper and lower knives It took time and workability was not good.

That is, in order to perform the operation of replacing the knife, the adjustment bolt and the adjustment nut were loosened, and then all the fixing bolts were separated to separate the knife from the mounting surface. Then, the new knife is fixed to the mounting surface with the fixing bolt, and the upper and lower knives are aligned while adjusting the clearance and the rap between the upper and lower knives, and then the fixing bolt, adjusting bolt, And the knife was finally fixed to the mounting surface.

The term " clearance " between upper and lower knives as used herein refers to " gap in the horizontal direction between knife edges of upper and lower blades " The horizontal distance between the edges of the knives of the upper and lower blades is referred to as a "clearance amount" and the vertical distance between the blades of the upper and lower blades is referred to as "lap".

Next, an adjustment operation of the clearance amount and the wrap amount between the upper and lower knives in this conventional rotary drum shaft will be described.

In order to adjust the distance of the clearance between the upper and lower knives, for example, a shim or the like is appropriately inserted between the mounting surface of the upper knife and the upper knife, and a mounting height The amount of clearance between the upper and lower knives is adjusted. In this case, a shim having a through hole corresponding to the bolt hole of the fixing bolt for fixing the upper knife to the mounting surface is prepared separately, while the adjusting bolt and the adjusting nut are loosened, and the fixing bolt is separated from the upper knife do. Then, the shim is inserted between the mounting surface and the upper knife, and the upper knife is fixed with the fixing bolt. Then, after adjusting the amount of clearance between the upper knife and the lower knife, the upper knife is fixed to the mounting surface by tightening the fixing bolt, adjusting bolt, and adjusting nut again.

When the distance between the upper and lower knives is adjusted, for example, the fixing bolts of the upper knife are appropriately loosened so that the upper knife is inclined relative to the mounting surface. Then, Or an adjusting nut or a shim or the like having a suitable spherical surface is inserted and disposed between the mounting surface of the upper knife and the upper knife and the upper knife is mounted inclined with respect to the mounting surface And the like have been adopted.

In the above-described conventional rotary drum shear, the work of adjusting the amount of clearance between the upper and lower knives and the amount of lap was very troublesome, and workability was bad, and it was extremely difficult to finely adjust the amount of clearance and the amount of lap.

In this conventional rotary drum shaper, when the positions of the upper and lower knives are adjusted, the upper and lower knife positions are aligned, then one end in the width direction of the upper and lower knives is pressed at the tip of the adjustment bolt, , The upper and lower knife positions are adjusted. At this time, since the upper and lower knives are held in a state of being pressed at so-called points at the tip ends of a plurality of adjustment bolts, it becomes difficult to firmly fix the upper and lower knives on the mounting surface in a stable state, Position can not be adjusted.

In this conventional rotary drum shear, it is necessary to form a large number of insertion holes for inserting fixing bolts into the upper and lower knives, so that the rigidity of the knife is lowered and the cutting resistance, In this case, there is a fear that the strength against shear resistance is lowered, and the number of processing steps is increased, leading to an increase in cost.

In this conventional rotary drum shaper, when the fixing bolt, the adjusting bolt and the adjusting nut are loosened, when the knife shear reaction force (cutting reaction force) acts on the upper and lower knife when cutting the material to be cut, (Contact point) at which the tip end of the knife contacts the knife is a point (fulcrum), vibrations are generated in the upper and lower knives, and chattering vibration is easily generated in the knife itself. In this case, chipping or abrasion of the knife edge may occur, shortening the service life of the knife, and causing the positional deviation of the upper and lower knife adjusting positions.

SUMMARY OF THE INVENTION It is therefore a primary object of the present invention to stably mount a cutting blade on a pair of rotating drums so that the mounting position of the cutting blade can be easily and finely adjusted, To provide a shearing machine,

According to a first aspect of the present invention, there is provided a rotary drum, comprising: a pair of rotary drums provided so as to sandwich and reciprocate so as to sandwich a material to be conveyed; One of the cutting blades detachably disposed in the groove of one of the rotary drums and the other of the cutting blades detachably disposed in the groove of the other rotary drum, And a fixing block for fixing the cutter to a cutting edge of the other cutting edge so as to be cut and cut at the edge of the cutting edge of the other cutting edge, And a spherical back surface for adjusting the mounting position and fixing the other of the cutting blades to one of the main surface side and the other main surface side of the other cutting blade and fixing the other cutting blade to the groove portion of the other rotary drum A pair of adjusting blocks, a screw member for a fixing block, one end of which is screwed to the fixing block and the other end of which is screwed to one rotary drum, And a screw member for a pair of adjustment blocks screwed to the other rotary drum. By making the fixed block reciprocally movable in the axial direction of the screw member for the fixed block, The blade can be pressed by the inner surface of the groove portion of the rotary drum on one side and the pair of adjustment blocks can be reciprocated in the axial direction of the pair of adjustment block screw members, So that one main surface and the other main surface of the other cutting blade can be pressed.

According to Claim 1 of the present invention, when the fixing block is inserted between one cutting edge and the groove portion, the wedge action of the fixing block causes the sidewall of the fixing block to contact the one cutting edge It is possible to press and fix on the side surface of the groove portion of one rotary drum. In this case, the side surface (the fixed block receiving surface) of the groove portion in which the surface opposite to the sphere rear face is in contact with the surface of the fixed block becomes a starting point, and one main surface of one cutting edge The other main surface of the cutting blade can be firmly pressed against the side surface (the cutting blade receiving surface) of the groove portion opposite to the fixed block receiving surface. Further, when inserting the fixed block, frictional force acts on the contact surface between the sphere back surface of the fixed block and one of the cutting blades, so that one of the cutting blades is further firmly fixed to the side surface of the groove portion of the rotary drum As shown in Fig.

When a pair of adjustment blocks are inserted into the groove portion of the other rotary drum so as to sandwich the cutting blade from one main surface side and the other main surface side of the other cutting blade, One and the other sphere rear faces of the pair of adjustment blocks are pressed and sandwiched between one and the other main face of the other cutting blade and the other cutting blade is engaged with the groove portion of the other rotary drum As shown in Fig. In this case, each of the pair of adjustment blocks has, as a starting point, a side surface (a fixed block receiving surface) of the groove portion where a surface opposite to the sphere rear surface of the pair of adjustment blocks abuts, It is possible to press one and the other main surface of the other cutting edge. Further, when inserting the pair of adjustment blocks, frictional force acts on the contact surface between the spherical surface of the pair of adjustment blocks and the other cutting blade, so that one and the other main surface of the other cutting blade So that it is possible to press and hold more firmly.

In the present invention according to claim 1, when one cutting blade is mounted on one rotary drum, for example, first, one cutting blade is disposed on the cutting blade receiving side of the groove portion of one rotary drum. Next, one end side of the screw member for the fixing block is screwed to the fixing block. Further, the other end side of the screw member for the fixed block is screwed to one rotary drum. Then, by fastening the screw member for the fixed block from one end thereof, the fixed block moves in the groove along the axial direction of the fixed block screw member. At this time, one cutting edge is pressed against the cutting blade receiving surface by the wedge action of the fixed block, and is firmly fixed in the groove.

On the other hand, when the screw member for the fixed block is loosened from the one end side, the fixed block moves back (retreated) along the axial direction of the screw member for the fixed block. At this time, one cutting edge is separated from one rotary drum by releasing the wedge action of the fixed block.

When the other cutting blade is mounted on the other rotary drum, for example, one end of one screw member for the adjustment block is screwed to one adjustment block. Next, the other end side of the screw member for one adjustment block is screwed to the other rotary drum. The other cutting edge is disposed in contact with the spherical surface of one of the adjustment blocks. Further, one end side of the screw member for the other adjustment block is screwed to the other adjustment block. In addition, the other end side of the screw member for the other adjustment block is screwed to the other rotary drum. The one and the other adjustment screw members screwed to the one and the other adjustment block are respectively fastened from the one end side thereof so that the one and the other adjustment blocks are fixed to the one and the other (Advances) the groove portion along the axial direction of the screw member for the adjustment block. At this time, by the wedge action of the pair of adjustment blocks, one main surface and the other main surface of the other cutting blade are pressed and held by the pair of adjustment blocks, and the other cutting blade is firmly held in the groove . In this case, the mounting position of the other cutting edge is adjusted by the pair of adjustment blocks so that the workpiece is sandwiched and cut at the blade edge of one cutting edge and the blade edge of the other cutting edge, The positioning between the blade and the cutting edge of the other cutting blade is performed.

When the other cutting blade is separated from the other rotary drum, for example, when one screw member for the adjustment block is loosened from the one end side, one adjustment block is moved in the double direction (retreat) , The wedge action of one of the adjustment blocks is released. Similarly, when the screw member for the other adjusting block is loosened from the one end side, the other adjusting block is moved backward (retracted), and finally the wedge action of the other adjusting block is released. By releasing the wedge action of the pair of adjustment blocks in this way, the other cutting edge is separated from the other rotary drum.

As described above, in the present invention according to Claim 1, by fastening or loosening the screw member for the fixing block and the screw member for the adjusting block, the fixing block and the pair of adjusting blocks can be rotated It is possible to make the groove and the groove of the drum and the other rotary drum swivel and double move along the axial direction of the screw member for the fixing block and the screw member for the pair of the adjusting blocks. Therefore, the mounting and separation of one cutting blade and the other cutting blade can be easily performed with respect to one rotary drum and the other rotary drum, respectively.

In the present invention according to claim 1, particularly when, after one positioning between one cutting edge and the other cutting edge is performed, for example, the other cutting edge is replaced with a new cutting edge, The other adjustment block of the pair of adjustment blocks is doubled (retracted), the pressing force against the cutting blade due to the wedge action of the other adjustment block is loosened, . Next, the prepared new cutting blade is disposed so as to be in contact with the spherical surface of one of the adjustment blocks of the pair of adjustment blocks. Then, the other adjustment block is moved forward (forward). Thereby, the other adjustment block presses and holds a new cutting blade between the one adjustment block and the other adjustment block by the wedge action. At this time, one of the adjustment blocks has a function of a positioning block serving as a reference in positioning between the cutting edge of one cutting edge and the edge of the other cutting edge. Therefore, when the other cutting blade is to be replaced with a new cutting blade, only the other adjustment block is subjected to double cutting (retraction) to separate the old cutting blade. Therefore, So that the replacement operation of the other cutting edge becomes extremely easy.

In the present invention according to claim 1, particularly, by screwing or loosening a screw member for a pair of adjustment blocks, a pair of a pair of insertion holes It is possible to make the adjustment block in the groove of the other rotary drum to swing and double in the axial direction of the pair of adjustment block screw members. In this case, by setting the difference between the longest distance between the yaw distance (forward distance) of one of the adjustment blocks and the yaw distance (forward distance) of the other adjustment block, It is possible to adjust the strength of the pressing force against the cutting edge. For example, when one adjustment block is double-moved (retracted) and then the other adjustment block is swung (advanced), the pushing pressure against the other cutting blade due to the wedge action of the other adjustment block It is possible to displace the other rotary drum in the circumferential direction of the other rotary drum in the direction in which the pressing force of the other adjustment block acts. That is, by only engaging or disengaging the screw members for the pair of adjustment blocks, the pair of adjustment blocks can swing in the axial direction of the pair of adjustment block screw members in the groove portion of the other rotary drum, The workability is simplified, and it is possible to easily and finely adjust the mounting position of one cutting edge and the other cutting edge.

According to a second aspect of the present invention, there is provided an invention according to claim 1, wherein the screw member for the fixed block and the screw member for the pair of adjustment blocks each include a shaft main body, Which is formed on one end face and the other end face in the axial direction of the shaft body and which is provided on one end face and the other end face of the shaft body, And an engaging groove of a rotary tool capable of rotating the shaft main body, wherein the fixing block has a threaded surface that is screwed into a screw surface on one axial end side of the screw member for the fixed block, And a screw surface that is screwed with the screw surface on the other axial end side of the screw member for the fixed block, wherein the pair of adjustment blocks are provided with a pair of adjustment block screw members, And the other rotary drum has a threaded surface which is screwed to the threaded surface on the other axial end side of the pair of adjustment block screw members, the rotary tool is engaged with the engagement groove, By rotating the shaft main body, the fixed block and the pair of adjustment blocks are rotated in the axial direction of the screw member for the fixed block and the screw member for the pair of adjustment blocks, respectively, (Retracted) in the axial direction of the screw member for the fixed block and the screw member for the adjustment block, respectively, by rotating the fixed block and the pair of adjustment blocks in the reverse direction.

According to claim 2 of the present invention, since the rotary tool is engaged with the engaging groove of the screw member for the fixed block and the shaft body is rotated clockwise or counterclockwise, the fixed block is fixed (Retracted) in the axial direction of the screw member for a fixed block by rotating the shaft body counterclockwise or clockwise in the axial direction, on the contrary, .

Further, a rotary tool is engaged with the engaging grooves of the pair of adjustment block screw members, and the shaft body is rotated clockwise or counterclockwise, whereby the pair of adjustment blocks are engaged with the pair of adjustment block screw members (Advances) in the axial direction of the pair of adjustment block screw members, and conversely, the shaft body is rotated in the counterclockwise or clockwise direction to rotate the pair of adjustment blocks in the axial direction of the pair of adjustment block screw members .

According to claim 2 of the present invention, since the rotary tool is engaged with the engaging groove of the screw member for the fixed block and the shaft body is rotated clockwise or counterclockwise, The threaded surface on the other axial end of the fixed block can be screwed into the threaded surface of one rotary drum and the fixed block is moved along the threaded surface on the one end side in the axial direction of the fixed block threaded member, (Advances) toward the threaded surface of one rotary drum. On the contrary, when the shaft body is rotated in the counterclockwise or clockwise direction, the threaded surface on the other axial end side of the screw member for the fixed block is moved (double acting or retracted) in a direction away from the threaded surface of one rotary drum, (Retracted) toward the direction away from the groove of one rotary drum along the threaded surface on the one axial end side of the screw member for the fixed block.

Further, a rotary tool is engaged with the engaging grooves of the pair of adjustment block screw members, and the shaft body is rotated clockwise or counterclockwise to rotate the axially main body on the other axial side of the pair of adjustment block screw members The screw surface can be screwed into the threaded surface of the other rotary drum and the pair of adjustment blocks are moved in the axial direction along the threaded surface on the one axial end side of the pair of adjustment block screw members, (Forward) toward the thread surface of the other rotary drum. Conversely, by rotating the shaft body counterclockwise or clockwise, the screw surfaces on the other axial end side of the screw members for the pair of adjustment blocks move in the direction away from the screw surface of the other rotary drum And the pair of adjustment blocks are movable in the axial direction of the pair of adjustment block screw members in the axial direction on the one side of the screw surface in the direction of being separated from the groove of the other rotary drum, ).

According to a third aspect of the present invention, there is provided an invention according to claim 2, wherein the length of the cutting edge in the width direction is L1, the depth of the groove is L2, the length of the screw hole of the fixed block and the pair of adjustment blocks is L3 The length of the screw hole of the pair of rotary drums to be screwed with the screw surfaces on one end side in the axial direction of the screw members for the fixed block and the screw members for the pair of adjustment blocks is L4, The total length of the shaft main body of the screw member for the adjustment block is L5, the axial length of the screw surface on one end side in the axial direction of the shaft body that is screwed with the screw surfaces of the fixed block and the pair of adjustment blocks is L6, L1> L2> L5> L3, and L4 is a length in the axial direction of the other axial end of the shaft body which is screwed with the screw threads of the rotary drum and the other rotary drum. Or L5 > L6 or L7 A shear to a gong.

According to claim 3 of the present invention, since the fixing block and the pair of adjustment blocks have the above-described configuration, the bottom surface of the groove portion of one rotary drum and the rotary drum of the other rotary drum, It is possible to fix and adjust the one cutting edge and the other cutting edge with a gap between the distal end and the distal end face of the insertion side of the adjustment block. The fixed block and the pair of adjustment blocks can effectively exhibit the wedge action in the groove portions of the rotary drum on one side and the rotary drum on the other rotary drum. In a state in which there is no clearance between the front end surface of the insertion side of each block and the bottom surface of the groove, the wedge action can not be applied to each of the blocks.

According to a fourth aspect of the present invention, there is provided an invention dependent on the invention according to any one of claims 1 to 3, wherein the shearing machine is provided on one side in the axial direction of the rotary shaft of one rotary drum, A rotating drum provided on the other side in the axial direction of the rotary shaft of one rotary drum and rotated at one of the rotary drum and the other rotary drum at a peripheral speed corresponding to the conveying speed of the conveyed article to be cut, A follower mechanism that synchronously rotates the rotary drum in the reverse direction and a mechanism that is incorporated in the follower mechanism to support adjustment of the mounting position between one cutting edge and the other cutting edge Wherein the driving mechanism includes a driving source for starting the rotational driving force, a driving source connected to the output shaft of the driving source via a coupling portion, A drive gear fixed to one side of the axis of the shaft and another drive gear fixed to the other side of the axis of rotation of the rotary shaft of the one rotary drum, A driven gear which is fixed to the other side of the rotary shaft of the other rotary drum and fixed to the other side of the rotary shaft of the rotary drum of the other rotary drum, , A connecting shaft portion inserted into the driven gear and the reinforcing member to connect the driven gear and the reinforcing member, and a connecting shaft portion extending from one end in the axial direction of the reinforcing member to an intermediate portion in the axial direction And the mounting position adjustment support mechanism is disposed so as to oppose the radial direction of the connection shaft portion and is provided on a part of the circumferential surface of the connection shaft portion A pair of contact blocks each having a fitting surface with an arc-shaped cross-section and a spherical rear surface opposite to the fitting surface, a pair of contact blocks each having an inner circumferential surface of an annular recess and a pair of contact blocks A pair of mounting position adjustment support blocks which are inserted between the pair of mounting position adjustment support blocks and which have a sphere rear face that is in contact with the sphere rear face of the pair of contact blocks, And a pair of mounting position adjusting support screw members whose other end side is screwed to the reinforcing member, and the pair of mounting position adjusting supporting screw members are reciprocally movable in the axial direction of the pair of mounting position adjusting supporting screw members, And the connecting shaft portion is pressed in the rotating direction of the driven gear through the pair of mounting position adjusting support blocks and the pair of contact blocks.

According to a fourth aspect of the present invention, since the wedge action of the pair of mounting position adjustment support blocks has the above-described structure, one and the other of the pair of mounting position adjustment support blocks are provided, And presses the sphere back surface of one and the other of the contact block. That is, the pair of mounting position adjustment supporting blocks can clamp and fix the connecting shaft portion by pressing the connecting shaft portion from both sides radially opposite to each other of the connecting shaft portion through the contact block. In this case, each of the pair of mounting position adjustment supporting blocks has an inner side surface (a mounting position adjustment supporting block receiving surface) of an annular concave portion to which a surface opposite to the sphere rear surface abuts, It is possible to press the sphere back surface of the pair of contact blocks on the entire surface of one sphere and the other sphere of the adjustment support block. Further, when inserting a pair of mounting position adjustment supporting blocks, frictional force acts also on the contact surfaces of the spherical back surface of the pair of mounting position adjustment supporting blocks and the spherical rear surface of the pair of contact blocks, As shown in Fig. Therefore, the connecting shaft portion is prevented from being separated from the annular recess, and is stably embedded in the reinforcing member.

In the present invention according to claim 4, when a pair of contact blocks and a pair of mounting position adjustment supporting blocks are mounted between the annular recessed portion of the reinforcing member and the connecting shaft portion, for example, The one end side of the mounting position adjusting support screw member is screwed to one of the mounting position adjusting support blocks. Next, in a state in which the spherical rear surface of one of the mounting position adjustment supporting blocks and the spherical rear surface of one of the contact blocks are in contact with each other and the fitting surface of one of the contact blocks is fitted to a part of the peripheral surface of the connecting shaft portion, The mounting position adjustment support block and one of the contact blocks are inserted into the annular recess. The other end of the mounting position adjustment supporting screw member is threadedly engaged with the reinforcing member so that one mounting position adjustment supporting block and one contacting block are disposed on one side of the connecting shaft portion that faces the connecting shaft portion in the radial direction.

In the same way, the other mounting position adjustment support block and the other contact block are disposed on the other side facing the radial direction of the connection shaft portion.

The mounting position adjustment support screw members that are screwed to the mounting position adjustment support blocks on one side and the other side are respectively fastened from the one end side thereof so that the mounting position adjustment support blocks on one side and the other side are mounted on the other side And moves in the annular recess along the axial direction of the other mounting position adjustment supporting screw member. At this time, by the wedge action of the pair of mounting position adjustment support blocks, the spherical surfaces of the pair of contact blocks are pressed against the spherical surfaces of the pair of mounting position adjustment support blocks. At this time, the connecting shaft portion is pressed and held by the pair of mounting position adjusting support blocks from both sides of the connecting shaft portion in the radial direction opposite to each other via the pair of contact blocks, and is stably fixed do.

On the other hand, when the pair of mounting position adjustment support blocks and the pair of contact blocks are separated from each other between the annular concave portion of the reinforcing member and the connecting shaft portion, for example, When one of the mounting position adjustment support members is released from one end thereof, one of the mounting position adjustment support members is caused to double-move (retract) within the annular recess along the axial direction of one of the mounting position adjustment support screw members, The wedge action of the adjustment support block is released. Therefore, it is possible to separate one mounting position adjustment support block and one contact block from each other between the annular recess and the connecting shaft portion. Likewise, when the other mounting position adjustment supporting screw member is loosened from its one end side, the other mounting position adjusting supporting block is moved in the axial direction of the other mounting position adjusting supporting screw member so that the inside of the annular concave portion The wedge action of the other mounting position adjustment support block is released. Therefore, it is possible to separate the other mounting position adjustment support block and the other contact block from each other between the annular recess and the connecting shaft portion. Thus, the wedge action of the pair of mounting position adjustment support blocks is released, so that the pair of mounting position adjustment support blocks and the pair of contact blocks are separated from each other between the annular recess and the connection shaft portion.

As described above, in the present invention according to Claim 4, the pair of mounting position adjustment support blocks and the contact block are mounted on the other rotary drum, respectively, only by screwing or loosening the mounting position adjustment support screw member. It is possible to reciprocate in the axial direction of the rotary shaft, that is, in the direction of insertion into the annular recess and in the direction away from the annular recess. Therefore, the mounting position adjustment support block and the contact block between the inner circumferential surface of the annular recess and the outer circumferential surface of the connecting shaft portion can be easily mounted and detached.

According to a fourth aspect of the present invention, by setting the difference between the longest distance between the yaw distance (forward distance) of one mounting position adjustment support block and the yaw distance (forward distance) of the other mounting position adjustment support block, It is possible to adjust the strength of the pressing force with respect to the connecting shaft portion due to the wedge action of the mounting position adjustment supporting block. For example, when the other mounting position adjustment supporting block is moved forward (forward) after the other mounting position adjusting supporting block is double-moved (retreated), the other mounting position adjusting supporting block is moved to the connecting shaft portion The pressing force of the mounting position adjusting support block is stronger than the pressing force of the one mounting position adjusting support block so that the pressing force of the other mounting position adjusting support block is applied in the direction of the circumferential direction of the driven gear, It becomes possible to displace the drum. In other words, since the reinforcing member and the driven gear are pressed in the rotating direction of the other rotary drum through the connecting shaft portion, the other rotary drum can be displaced in the rotating direction thereof so that the one cutting blade and the other cutting blade It is possible to support the fine adjustment of the mounting position of the lens.

In this shearing machine, the above-described pair of adjustment blocks can be reciprocally moved in the upper groove portion along the axial direction of the pair of adjustment block screw members, so that the other cutting blade with respect to one cutting blade The mounting position is finely adjusted and the clearance amount and the wrap amount between the edge of one cutting edge and the edge of the other cutting edge, for example, are appropriately and finely adjusted. However, It is possible to support fine adjustment between the cutting edge of the other cutting edge and the cutting edge of the other cutting edge. That is, by the wedge action by the reciprocating movement of the pair of adjustment blocks and the synergistic action by the mounting position adjustment support mechanism, the fine adjustment between the cutting edges of one cutting edge and the other cutting edge can be performed more effectively It is possible to do.

In this case, only by mounting or disengaging the pair of mounting position adjustment support screw members, the pair of mounting position adjustment support screw members can be easily swung along the axial direction of the pair of mounting position adjustment support screw members, Therefore, the operation is simplified, and it is possible to easily and finely adjust the mounting positions of the one cutting edge and the other cutting edge.

According to a fifth aspect of the present invention according to claim 5, there is provided an invention according to claim 4, wherein the pair of mounting position adjustment supporting screw members includes a shaft main body, And a rotating tool which is formed on at least one end face of one axial end face and the other axial end face of the shaft body and which is rotatable about the axis of the rotary body And the mounting position adjustment support block has a threaded surface that is screwed with the threaded surface on one axial end side of the mounting position adjustment support screw member, And a rotary tool is engaged with the engaging groove, and the shaft body is rotated about its axis, whereby a pair of mounting position sets The support blocks are swung in the axial direction of the pair of mounting position adjusting support screw members and rotated in the direction opposite to the direction in which the shaft body is rotated in the axial direction, (Retracted) in the axial direction of the mounting position adjusting support screw member.

According to a fifth aspect of the present invention, there is provided the shear machine according to the fifth aspect of the present invention, which has the above-described structure, by engaging the rotary tool with the engaging groove of the mounting position adjusting support screw member, and rotating the shaft body clockwise or counterclockwise, The position adjustment support block can be swung (axially) in the axial direction of the mounting position adjustment support screw member. On the other hand, by rotating the shaft body counterclockwise or clockwise, (Retracted) in the axial direction of the adjustment support screw member.

According to a fifth aspect of the present invention, there is provided the shear machine according to the fifth aspect of the present invention, which has the above-described structure, and the rotary tool is engaged with the engaging groove of the pair of mounting position adjustment supporting screw members, and the shaft body is rotated clockwise or counterclockwise , The screw surfaces on the other axial end side of the pair of mounting position adjustment supporting screw members can be screwed into the threaded surface of the reinforcing member, (Advances) toward the threaded surface of the reinforcing member along the threaded surface on the one axial end side of the mounting position adjusting support screw member of the mounting position adjusting screw member. Conversely, by rotating the shaft body counterclockwise or clockwise, the threaded surfaces on the other axial end side of the pair of mounting position adjustment supporting screw members move in the direction away from the threaded surface of the reinforcing member The pair of mounting position adjustment support screw members are movable in the axial direction along the threaded surface on one end side of the pair of mounting position adjustment support screw members in the direction of being separated from the annular recessed portion of the reinforcing member, (Retraction) becomes possible.

According to the present invention, it is possible to stably mount the cutting blade on the pair of rotary drums so that the mounting position of the cutting blade can be easily and finely adjusted, Lt; / RTI >

The foregoing and other objects, features, and advantages of the present invention will become more apparent from the following description of the embodiments thereof with reference to the accompanying drawings.

1 (A) is a schematic plan view thereof, and Fig. 1 (B) is a schematic front view thereof, and Fig. 1 C) is a schematic right side view thereof.
2 is a front view of a main portion showing details of FIG. 1 (B).
3 is a side view of a spiral groove portion extending in the axial direction of one rotary drum (lower rotary drum) as viewed from the side of the lower rotary drum.
4 is a side view of the pair of rotary drums viewed from the side, when the cutting blades are respectively mounted on the grooves of the pair of rotary drums (the lower rotary drum and the upper rotary drum).
5 is a right side view of a pair of rotary drums and a cutting blade mounted on the pair of rotary drums as viewed from the right side of FIG.
Fig. 6 is a right side view of the pair of rotating drums and the cutting blade state when the cut material to be conveyed is cut into the cutting edge of the cutting blade mounted on the pair of rotary drums, from the right side of Fig.
Fig. 7 is an enlarged right side view of a main part seen from the right side of Fig. 2 at the time of starting cutting of a cutting edge when cutting the object to be cut to be conveyed; Fig.
8 is an enlarged view of part A in Fig.
FIG. 9A is a cross-sectional view taken along the line B-B in FIG. 8, and FIG. 9B is a cross-sectional view taken along the line C-C in FIG.
10 is a cross-sectional view taken along line D-D in Fig.
11 is a plan view of one of the pair of adjustment blocks for fixing the cutting edge to the groove of the other rotary drum (upper rotary drum). FIG. 11 (A) is a plan view thereof, (B) is a front view thereof, and Fig. 11 (C) is a right side view thereof.
FIG. 12 is a plan view of the other adjustment block of a pair of adjustment blocks for fixing the cutting edge to the groove of the other rotary drum. FIG. 12 (A) is a plan view thereof, Fig. 12C is a right side view thereof. Fig.
Fig. 13 is an explanatory view for explaining a fixing method for fixing the cutting edge to the groove portion of one rotary drum, and the main part thereof is a side view of the main part seen from the side of the rotary drum. Fig.
Fig. 14 is an explanatory view for explaining a fixing method for fixing the cutting edge to the groove portion of the other rotary drum, and a main part thereof is a side view of the main part seen from the side of the rotary drum. Fig.
Fig. 15A shows an example of a state in which a cutting edge is fixed to a groove portion of a pair of rotary drums and the cutting edge is aligned, and Fig. 15B shows an example of a state in which the above- Another example is a side view of a main part seen from the side of the pair of rotary drums, respectively. Fig. 15C is a plan view showing an example of the screw member for the fixed block and the screw member for the adjustment block.
Fig. 16 (A) illustrates the wedge action of the fixed block and the pair of adjustment blocks in Fig. 15 (A), Fig. 16 (B) Fig. 3 is an explanatory view for explaining the wedge action of the adjustment block of the rotary drum, each of which is an enlarged side view of a main part thereof viewed from the side of the rotary drum.
17 is a front view of a main portion showing details of an example of a driving mechanism for imparting rotational driving force to one rotary drum of the shearing machine shown in Fig.
18 is a left side view of the main part of Fig.
Fig. 19 is an explanatory view showing an example of a backlash adjusting mechanism for adjusting the backlash of one driving gear included in the driving mechanism. Figs. 19 (A) and 19 (B) show states before the backlash is adjusted Fig. 19A is an enlarged view of a main portion of E in Fig. 18, and Fig. 19B is an enlarged sectional view of F-F cutout in Fig. 19A. 19 (C) and 19 (D) show the state after adjusting the backlash, FIG. 19 (C) is an enlarged left side view of the main part, and FIG. 19 (D) (C) is an enlarged cross-sectional view of the G-G cut portion.
FIG. 20A is a perspective view showing an example of a contact block, and FIG. 20B is a perspective view showing a backlash adjusting block.
21 is an enlarged cross-sectional view of a main portion for explaining a backlash adjusting method in the backlash adjusting mechanism shown in Fig.
Fig. 22 is an explanatory view for explaining the wedge action of the backlash adjusting block shown in Fig. 19, Fig. 22 (A) is an enlarged sectional view of a main part showing a state before the backlash is adjusted, Is an enlarged cross-sectional view of a main part showing a state after adjusting the backlash.
Fig. 23 shows details of an example of a follower mechanism applied to the shearing machine shown in Fig. 1 and synchronously rotating one rotary drum and the other rotary drum at a main speed corresponding to the conveying speed of the conveyed object to be cut Front view of main part.
24 is a right side view of the main part of Fig.
25 (A) and 25 (B) show a state before adjustment of the clearance, and Fig. 25 (A) shows a state before the adjustment of the clearance. Fig. FIG. 25B is an enlarged sectional view of the I-I cut section in FIG. 25A. FIG. 25 (C) and 25 (D) show the state after adjusting the clearance, Fig. 25 (C) is an enlarged right side view of the main part, Fig. 25 (C) is an enlarged cross-sectional view of a J-J cut section.
Fig. 26 is an explanatory view for explaining the wedge action of the mounting position adjustment support block shown in Fig. 25, and Fig. 26 (A) is an enlarged sectional view of a main part showing a state before adjusting the clearance. B) is an enlarged cross-sectional view of a main portion showing a state after adjusting the clearance.

Fig. 1 (A) is a schematic plan view thereof, Fig. 1 (B) is a schematic front view thereof, and Fig. 1 (C) is a schematic right side view thereof. Fig. 2 is a front view of a main part showing details of Fig. 1 (B).

First, the overall configuration of the shear machine 10 according to the present embodiment will be briefly described.

The shear machine 10 mainly includes a pair of cylindrical rotary drums (a lower rotary drum 12, a lower rotary drum 12, and a lower rotary drum 12) which are provided so as to be rotatable so as to face each other, A lower side groove portion 16 and an upper side groove portion 18, a lower side groove portion 16, and an upper side groove portion 16, which are provided in the lower rotary drum 12 and the upper rotary drum 14, respectively, A lower cutting blade 20 and an upper cutting blade 22 that are detachably disposed on the lower rotary drum 12 and a driving mechanism 24 that applies a rotary driving force to the lower rotary drum 12, And a follower mechanism 26 for synchronously rotating the lower rotary drum 12 and the upper rotary drum 14 in the reverse direction at one main speed.

6, 13, and 14, the shear machine 10 includes a fixed block (not shown) having a rear surface for fixing the lower cutting edge 20 to the lower side groove portion 16 28, a screw member for a fixing block, one end of which is screwed to the fixing block 28 and the other end of which is screwed to the lower rotary drum to make the fixing block 28 reciprocally movable in the radial direction of the lower rotary drum, The mounting position of the upper cutting edge 22 is adjusted so that the workpiece 30 is sandwiched between the lower cutting edge 20 and the upper cutting edge 22 and the upper cutting edge 22 is positioned on the upper side A pair of adjustment blocks 32 and 34 having a spherical rear surface to be fixed to the groove portion 18, one end side being screwed to the pair of adjustment blocks 32 and 34 and the other end side being connected to the upper rotary drum 14, So that the pair of adjustment blocks 32 and 34 can reciprocate in the radial direction of the upper rotary drum Screw members 36 and 38 for the adjustment block, and the like.

Therefore, in the shear machine 10, the fixing block 28 can be reciprocated in the radial direction of the lower rotary drum 12 by a simple operation of only tightening or loosening the screw member 30 for the fixed block The lower cutting edge 20 can be stably and firmly fixed to the lower rotary drum 12 by the wedge action of the fixing block 28 and the separation operation of the lower cutting edge 20 is also simple . Similarly, the adjustment blocks 32 and 34 can be reciprocated in the radial direction of the upper rotary drum 14 by a simple operation of only tightening or loosening the screw members 36 and 38 for the pair of adjustment blocks The upper cutting blade 22 is rotated by the wedge action of the adjustment blocks 32 and 34 so that the upper cutting blade 22 can be easily and finely adjusted with respect to the lower cutting blade 20. [ The upper cutting edge 22 can be stably and rigidly mounted on the base 14 and can be easily separated.

Hereinafter, the structure of the shear machine 10 will be described in detail, focusing on each of the above-described structures and the peripheral structures thereof.

1, the shear machine 10 is provided with a frame 40 for supporting a pair of rotary drums (hereinafter referred to as a lower rotary drum 12 and an upper rotary drum 14) . As shown in Fig. 1 (A), the mount 40 has, for example, a rectangular fixed base 42 and a movable base 44 as viewed in plan view extending in the longitudinal direction. The movable base 44 includes a displacement means 46. The displacement means 46 is arranged to move the movable base 44 in a clockwise direction Or in a counterclockwise direction.

The displacement means 46 includes, for example, three fixed bases 48A, 48B and 48B. On the upper surfaces of the fixed bases 48A, 48B, and 48B, movable bases 50A, 50B, and 50C are disposed, respectively. Each of the fixed bases 48A, 48B and 48B and the movable bases 50A, 50B and 50C is formed into a rectangular shape which is long in the longitudinal direction when seen in plan view, Respectively. The fixed bases 48A, 48B and 48B are respectively fixed to the fixed base 42 by fixing means such as welding and the movable bases 50A, 50B and 50C are fixed to the fixed bases 48A, 48B, 48B on the upper surface thereof.

The fixed base 48A and the movable base 50A are arranged so as to be vertically overlapped with each other so that their central portions are located at the center of the fixed base 42. The fixed base 48A, the movable base 50B, 48C and the movable base 50C are vertically overlapped with each other so as to be located at one end side and the other end side in the longitudinal direction of the fixed base 42 at a predetermined distance from the fixed base 48A and the movable base 50A Respectively. The center of the movable base 50A is rotatably supported on the fixed base 48A by a pivotal portion 52 such as a pin. The fixed bases 48B and 48C and the movable bases 50B and 50C are connected to each other by a plurality of setscrew members 54 threadably inserted from above the movable bases 50B and 50C, . The movable base 44 is mounted on the movable bases 50A, 50B and 50C and the movable base 44 and the movable bases 50A, 50B and 50C are fixed by fixing means such as welding.

On both sides in the longitudinal direction of the fixed bases 48B and 48C are provided pushing portions 56a and 56b for pressing the movable bases 50B and 50C from both sides in the longitudinal direction of the movable bases 50B and 50C, And 56c and 56d. Each of the pressing portions 56a, 56b, 56c, 56d includes pressing portions 58a, 58b, 58c, 58d such as screws. The compression parts 58a, 58b and 58c, 58d are supported by brackets 60a, 60b, 60c, 60d, respectively.

The brackets 60a and 60b and the brackets 60c and 60d are fixed at one end and the other end in the longitudinal direction of the fixing bases 48B and 48C by a plurality of mounting bolts 62 as shown in Fig. And is fixed to a substantially central portion in the width direction thereof. The brackets 60a, 60b and 60c, 60d have screw holes 64a, 64b and 64c, 64d, respectively. Compressed portions 58a and 58b and 58c and 58d are screwed to the screw holes 64a and 64b and 64c and 64d, respectively. The compression parts 58a and 58b and 58c and 58d are formed so as to be capable of pressing the ends of the movable base 50B and 50C in the longitudinal direction at one end, 64a, 64b and 64c, 64d. In this case, each of the compression parts 58a and 58b is formed so as to be movable in the longitudinal direction of the movable base 50B at a position closer to one side in the longitudinal direction of the movable base 44 than the center in the width direction of the movable base 50B So that one end surface and another end surface are pressed. Conversely, each of the compression parts 58c and 58d is provided at a position closer to the other side in the longitudinal direction of the movable base 44 than the center in the width direction of the movable base 50C, So that one end surface and another end surface are pressed.

The movable base 50B and the movable base 50C are separated from the fixed base 48B and 48C by releasing the plurality of stop screw members 54 in the mount 40 of the shear machine 10, (A) of Fig. 1, for example, by pressing the compression-compression portion 58a and the movable base B or compressing the compression-compression portion 58d and the movable base 50C, In view of this, the movable base 44 is displaceable in the clockwise direction when viewed in plan, with the pivot 52 as the center. Conversely, when the pressure compressing section 58b and the movable base B are pressed, or the pressure compressing section 58c and the movable base 50C are pressed, for example, as shown in Fig. 1 (A) The base 44 is capable of being displaced in the counterclockwise direction when viewed in plan, with the pivot 52 as the center. In the configuration described above, the movable base 44 is displaced by the four pressing portions 56a to 56d. However, the number of the pressing portions is not limited to this, and for example, the pressing portions 56a, It may be configured to have only two pressing portions such as the pressing portion 56b, the pressing portions 56c and 56d, the pressing portions 56a and 56c, and the pressing portions 56b and 56d.

As shown in Figs. 1A, 1B, and 1C, on one side and the other side in the longitudinal direction of the movable base 44, rectangular support bases 66A and 66B, respectively, 66B are fixed. On the supports 66A and 66B, rectangular support bases 68A and 68B, which are longitudinally long in plan view, are fixed by a plurality of fixing bolts 69, respectively. On the support bases 68A and 68B, housings 70A and 70B are provided, respectively. The one end side and the other end side in the axial direction of the rotary shaft 12A of the lower rotary drum 12 and the rotary shaft 14A of the upper rotary drum 14 are rotatably supported by the housings 70A and 70B, .

That is, the housing 70A includes, for example, vertical frames 71 and 72 which are substantially rectangular when viewed from the side, as shown in Figs. On the outside of the vertical frame 72, another vertical frame 73 having a substantially rectangular shape when viewed from the side is mounted by the mounting bolt 74. The vertical frame 71 is provided with bearing cases 82 and 84 at predetermined intervals in the vertical direction. The bearing cases 82 and 84 each include a bearing 76 such as a combination angular ball bearing, an oil seal 78, an O-ring 80, and the like. The vertical frame 73 is provided with bearings 86 and 88 such as radial ball bearings at predetermined intervals in the vertical direction. Bearings 86 and 88 are held by bearing covers 90 and 92, respectively.

The rotary shaft 12A of the lower rotary drum 12 is rotatably supported on the vertical frame 72 via a bearing case 82 on one side in the axial direction as shown in Fig. 17 . One end in the axial direction of the rotary shaft 12A of the lower rotary drum 12 is rotatably supported on the vertical frame 73 via a bearing 86. [ In this case, the rotary shaft 12A is rotatably supported by the bearing case 82 and the vertical frame 71 near the one end side in the axial direction of the lower rotary drum 12, Is rotatably supported on the vertical frame (73) by a bearing (86). A precision lock nut 94 is set at one end in the axial direction of the rotating shaft 12A. The precision lock nut 94 corrects the parallelism and bending of the rotary shaft 12A and fixes the bearing 86 in position. A precision lock nut 95 is set substantially at the center between one axial end portion of the rotary shaft 12A and a portion near one axial end side of the lower rotary drum 12. [ The precision lock nut 95 corrects the parallelism and bending of the rotary shaft 12A and fixes the bearing case 82 in position.

The rotary shaft 14A of the upper rotary drum 14 is rotatably supported on the vertical frame 71 via one side of the bearing case 84 in the axial direction. The precision lock nut 96 is set at one end in the axial direction of the rotary shaft 14A so that the precision lock nut 96 corrects the parallelism and bending of the rotary shaft 14A and fixes the bearing case 84 Positioning is fixed.

On the other hand, the housing 70B includes vertical frames 96 and 97, for example, as shown in Figs. The vertical frame 96 is provided with bearing cases 98 and 100 at predetermined intervals in the vertical direction. Like the bearing cases 82 and 84, the bearing cases 98 and 100 each include a bearing 76 such as a combination angular ball bearing, an oil seal 78, an O-ring 80, and the like.

The rotary shaft 12A of the lower rotary drum 12 is rotatably supported on the vertical frame 96 via the bearing case 98 on the other side in the axial direction as shown in Fig. have. The rotating shaft 12A is rotatably supported by the vertical frame 96 by a bearing case 98 near the other end side in the axial direction of the lower rotary drum 12. [ The precision lock nut 102 is set on the rotary shaft 12A and the precision lock nut 102 corrects the parallelism and bending of the rotary shaft 12A and fixes the bearing case 98 by positioning have.

The rotary shaft 14A of the upper rotary drum 14 is rotatably supported on the vertical frame 96 via the bearing case 100 on the other side in the axial direction. The rotary shaft 14A is rotatably supported by the vertical frame 96 by a bearing case 100 at a position near the other end side in the axial direction of the upper rotary drum 14. [ The precision lock nut 104 is set on the rotary shaft 14A and the precision lock nut 104 corrects the parallelism and bending of the rotary shaft 14A and fixes the bearing case 100 have.

Next, the drive mechanism 24 and the driven mechanism 26 will be described in detail with reference to Figs. 1, 2, 17, 18, 23, and 24. Fig.

The driving mechanism 24 is provided on one side in the axial direction of the rotary shaft 12A of the lower rotary drum 12 and imparts rotary driving force to the lower rotary drum 12. [

That is, as shown in Fig. 1, the drive mechanism 24 includes, for example, a servo motor M as a drive source for starting the rotational drive force. The output shaft MS of the servo motor M is connected to a main shaft (hereinafter referred to as " main shaft ") 112 via a coupling portion 110. As shown in Figs. 2 and 17, the main shaft 112 is rotatably supported by the housing 70A. One end side in the axial direction of the main shaft 112 is rotatably supported on the vertical frame 73 through a bearing 88 and the other end side of the main shaft 112 is connected to the vertical frame 71 through the bearing 114 And is rotatably supported. The main shaft 112 is provided with precision locknuts 116 and 118 for correcting the parallelism and bending of the main shaft 112. [ Further, the precision locknuts 116 and 118 fix the bearings 88 and 114 in position, respectively. The bearing 88 is sealed by an oil seal 120 built into the bearing cover 92. [

At an intermediate portion in the axial direction of the main shaft 112, a serrated portion 122 having, for example, a helical saw tooth shape is provided on the outer peripheral surface thereof. The toothed portion 122 has a predetermined length in the axial direction of the main shaft 112. The serration portion 122 meshes with the helical gears 128 and 130 of the drive gear portion 124 to be described later and the length of the serrated portion 122 when viewed in the axial direction of the main shaft 112 And is formed to have a length substantially equal to the tooth width of the helical gear 128 of the gear portion 124 and the tooth width of the gear 130.

2, the driving mechanism 24 further includes a pair of driving gear portions 124 and 126 fixed to one side and the other side in the axial direction of the rotary shaft 12A of the lower rotary drum 12 .

17, one drive gear portion 124 includes two helical gears 128 and 130, for example. The helical gears 128 and 130 are superimposed and fixed by, for example, six fixing bolts 132 as shown in Figs. One of the helical gears 128 is firmly fixed to the rotary shaft 12A by, for example, a friction coupling member 134 (for example, a power lock manufactured by Tsubaki Motor Corporation) The other helical gear 130 is fixed to one helical gear 128 by a fixing bolt 132. The helical gears 128 and 130 are engaged with the toothed portions 122 of the main shaft 112, as shown in Fig.

The other drive gear portion 126 includes, for example, two helical gears 136 and 138 as shown in Fig. The helical gears 136 and 138 are superimposed and fixed by, for example, six fixing bolts 140 as shown in Figs. One of the helical gears 136 is firmly fixed to the rotary shaft 12A by, for example, a friction coupling member 142 (for example, a power lock manufactured by Tsubaki Motor Corporation) The other helical gear 138 is fixed to the one helical gear 136 by a fixing bolt 140.

Next, the follower mechanism 26 will be described in detail.

As shown in Figs. 23 and 24, the driven mechanism 26 includes a driven gear portion 150 engaged with the drive gear portion 126 described above. The driven gear portion 150 includes, for example, one helical gear 152 and a reinforcing member 154 such as a boss. The tooth width of the helical gear 152 is formed to have a tooth width that is approximately the same as the tooth width of the helical gears 136 and 138 of the drive gear portion 126 described above. In addition, the number of teeth of the helical gear 152 and the number of teeth of the helical gears 136 and 138 are formed with the same number of teeth. The two helical gears 136 and 138 are formed so as to engage with one helical gear 152 and rotate synchronously in the reverse direction at the same time. The helical gear 152 is fixed to a reinforcing member 154 fixed to the rotary shaft 14A of the upper rotary drum 14. [ 23, the reinforcing member 154 is formed of, for example, a cylindrical reinforcing member main body 154A and a flange portion 154B provided on one axial end side of the reinforcing member main body 154A , The reinforcement member main body 154A and the flange portion 154B are integrally formed. The reinforcing member 154 is used as a member for reinforcing the periphery of a shaft hole (not shown) of the helical gear 152 and is fixed to the helical gear 152 by a fixing bolt 156. The reinforcing member 154 is firmly fixed to the rotary shaft 14A by, for example, a friction coupling member 158 (for example, a power lock manufactured by Tsubaki Motor Corporation).

As shown in Fig. 23, a manual operation mechanism 160 is incorporated in the driven mechanism 26. As shown in Fig. The manual operation mechanism 160 is operated by the manual operation mechanism 160 in the maintenance operation including adjustment, separation and mounting of the mounting position of the lower cutting edge 20 and the upper cutting edge 22 of the shearing machine 10, Is a mechanism for manually turning the rotary shaft 14A of the rotary shaft 14. The manual operation mechanism 160 includes a tubular outer case 162 and the tubular inner case 164 is slidable in the axial direction of the outer case 162 Respectively. The outer case 162 is fixed to the vertical frame 96 of the housing 70B by a flange portion 166 so that its axis is parallel to the axis of the rotary shaft 14A of the upper rotary drum 14. [ The flange portion 166 is provided to protrude from the outer surface of the outer case 162 and is fixed to the vertical frame 96 by a plurality of fixing bolts 167.

In the inner case 164, a handle shaft 168 having a function as a clutch shaft is rotatably provided. One side and the other side in the axial direction of the handle shaft 168 are supported by the inner case 164 so as to be rotatable by the bearings 170a and 170b. A handle 172 and a clutch gear 174 are fixed to the handle shaft 168 at one end and the other end in the axial direction, respectively. The handle 172 and the clutch gear 174 are disposed outside the one end and the other end in the axial direction of the inner case 164, respectively. The handle shaft 168 is disposed so as to be capable of reciprocating in the axial direction of the handle shaft 168 in the inner case 164 by the push-pull of the handle 172.

23, the clutch gear 174 is provided so as to be engageable with the helical gear 152 of the driven gear portion 150 through a relay gear 176 such as a helical gear. The relay gear 176 is rotatably supported by a support shaft 178 supported by the flange portion 166 of the outer case 162. [ One end side (base side) in the axial direction of the support shaft 178 is inserted into the vertical frame 96 and fixed to the flange portion 166. A bearing 180 is provided at the other end side (tip side) in the axial direction of the support shaft 178 and the relay gear 178 is connected to the other end side in the axial direction of the support shaft 178 On the leading end side).

When the clutch gear 174 is engaged with the relay gear 176 and the relay gear 176 is engaged with the helical gear 152, the manual operation of the handle 172 causes the helical gear 152 ) To rotate the rotary shaft 14A of the upper rotary drum 14. [0051]

Conversely, the handle 172 is pulled to move the handle shaft 168 to the left as viewed in Fig. 2, releasing the engaged state between the clutch gear 174 and the relay gear 176, The rotary shaft 12A of the lower rotary drum 12 and the rotary shaft 14A of the upper rotary drum 14 can be rotated by the motor force from the servo motor M.

The manual operation mechanism 160 is provided with a sensor portion for controlling ON / OFF of a power source (not shown) of the servomotor M in order to safely perform a manual operation of the handle 172. For example, And a limit switch 182 are provided. An electric signal from the limit switch 182 is inputted to a control unit (not shown) including a central processing unit (CPU), and ON / OFF of a power supply (not shown) of the servo motor M is controlled .

The limit switch 182 is mounted in the vicinity of the outer case 162 by a bracket 184 supported by another frame (not shown) of the housing 70B, as shown in Fig. The outer case 162 has an elongated hole 186 on one side in the axial direction and in the lower side in the radial direction. The long hole 186 is formed to have a predetermined length in the axial direction of the outer case 162. The limit switch 182 is operated by abutting the operation member 182a with the positioning pin 188 having the function of a sensor dog provided in the vicinity of the limit switch 182. [ The positioning pin 188 is provided on one side in the axial direction of the inner case 164. The positioning pin 188 is fixed to the inner case 164 in the axial direction and the lower end side of the positioning pin 188 protrudes downward from the long hole 186 of the outer case 162 Respectively. Therefore, the positioning pin 188 also has a function of preventing separation of the inner case 164 from the outer case 162 by the push-pull of the handle 172, in addition to the function of the sensor dog .

23, when the handle 172 is pulled and the handle shaft 168 is moved to the left as viewed in Fig. 2, the inner case 164 is slid to one side in the axial direction The clutch gear 174 protrudes to the left from the outer case 162 and the clutch gear 174 is separated from the relay gear 176 so that the clutch gear 174 and the relay gear 176 are in a non-engaged state. At this time, the positioning pin 188 moves the long hole 186 on one side in the axial direction of the outer case 162 in cooperation with the inner case 164, and the operating piece 182a of the limit switch 182 moves, Lt; / RTI > The power source (not shown) of the servomotor M is turned on and the servomotor M is driven (when the positioning pin 188 is in contact with the operating piece 182a of the limit switch 182) And the rotary shaft 12A of the lower rotary drum 12 is rotated, so that the rotary shaft 12A of the upper rotary drum 12 is rotated.

On the other hand, when the handle 172 is pushed in and the handle shaft 168 is moved to the right as viewed in Fig. 2, the inner case 164 slides to the other side in the axial direction as shown in Fig. 23, And the clutch gear 174 is engaged with the relay gear 176 so that the clutch gear 174 and the relay gear 176 are engaged with each other. At this time, the positioning pin 188 moves the elongated hole 186 to the other side in the axial direction of the outer case 162 in cooperation with the inner case 164, and the operating piece 182a of the limit switch 182, Respectively. The power source (not shown) of the servomotor M is turned OFF when the positioning pin 188 and the operating piece 182a of the limit switch 182 are apart from each other, that is, The power supply to the servo motor M is reliably stopped.

In the manual operating mechanism 160 described above, the handle shaft 168 is reciprocally moved in the axial direction of the outer case 162 in cooperation with the inner case 164 by the push-pull of the handle 172, For example, an index plunger 190 having a knob is provided as a positioning member for positioning and fixing so as not to move in the axial direction. 23, the index plunger 190 is attached to the outer case 162 and cooperates with the positioning holes 164a and 164b formed on the outer surface of the inner case 164, 164 in the axial direction. The index plunger 190 is capable of positioning and fixing the inner case 164 by pressing the knob 192 to project the nose 194 to the positioning hole 164a or 164b, The nose 194 is pulled in by the urging force of the internal spring to release the positioning fixation.

The nose 194 of the index plunger 190 protrudes into the positioning hole 164a and the positioning pin 184a of the positioning pin 188 and the limit switch 182 are spaced apart from each other, 188 and the limit switch 182 are in contact with each other so that the nose 194 of the index plunger 190 protrudes into the positioning hole 164b, the index plunger 190 and the positioning The formation positions of the holes 164a and 164b are set. In this case, the axial center of the positioning pin 188 and the nose 194 of the index plunger 190 are provided so as to be located on the same axis. The length between the centers of the positioning holes 164a and 164b is set shorter than the length of the long hole 186. [

In the shear machine 10, since the number of teeth of the helical gear 152 of the driven gear portion 150 engaged with the helical gears 136 and 138 of the drive gear portion 126 is formed at the same tooth, The rotary shaft 12A of the drum 12 and the rotary shaft 14A of the upper rotary drum 14 rotate synchronously in the reverse direction. 6, the lower rotary drum 12 and the upper rotary drum 14 are rotated at a main speed corresponding to the conveying speed of the workpiece W to be conveyed. In this case, on the one axial end side of the lower rotary drum 12 located on the drive mechanism 24 side and in the vicinity thereof, for example, as shown in Fig. 2, the rotation of the lower rotary drum 12 A rotary drum origin sensor 200 for detecting the origin is provided. The rotary drum origin sensor 200 includes, for example, a proximity switch 202, in particular, as shown in Fig. The proximity switch 202 is mounted on a horizontal frame 75 which is supported by a vertical frame 71 of the housing 70A and extended to the lower rotary drum 12 side via a bracket 204. [

On the other hand, a sensor dog 206 is provided in the vicinity of one end side in the axial direction of the lower rotary drum 12. The sensor dog 206 is fixed to the rotary shaft 12A of the lower rotary drum 12 by a fixing screw member 208. [ The sensor dog 206 is fixed to a portion near one end side in the axial direction of the lower rotary drum 12. [ When the lower rotary drum 12 rotates and the sensor dog 206 passes the proximity switch 202, the rotation of the lower rotary drum 12 is detected based on the electric signal from the proximity switch 202 12A (the angular origin of the rotary shaft of the servomotor M) is detected. The detected electrical signal is input to a control unit (not shown). The control unit controls the rotational speed of the servo motor M so that the lower rotary drum 12 rotates at the main speed corresponding to the conveying speed of the workpiece W based on the inputted electrical signal.

In this shearing machine 10, by having the drive mechanism 24 and the driven mechanism 26, first, the rotational drive force from the servo motor M is transmitted to the main shaft 112 on the drive mechanism 24 side And is transmitted. Next, the rotational driving force is transmitted to the helical gears 128, 130 of the driving gear portion 124 through the toothed portion 122 of the main shaft 112 and is imparted to the rotating shaft 12A of the lower rotating drum 12 . The rotational driving force for rotating the rotary shaft 12A is transmitted to the helical gear 152 of the driven gear portion 150 through the helical gears 136 and 138 of the drive gear portion 126 on the driven mechanism 26 side And is imparted to the rotary shaft 14A of the upper rotary drum 14. [

In this shearing machine 10, as shown in Fig. 1, a hydraulic device (equipment) 212 including a hydraulic pump 210 is provided. The hydraulic device 212 includes the bearing housings 82,84,98 and 100, the bearing covers 90 and 92, the bearings 86,88, 170a, 170b and 180, the precision lock nuts 94, 95, 102, 104, 116, 118 and the like, and lubricating surfaces thereof.

Next, the mounting structure of the lower cutting edge 20 and the upper cutting edge 22, which are detachably mounted on the lower rotary drum 12 and the upper rotary drum 14, respectively, will be described with reference to FIGS. 3, Will be described in detail below with reference to Fig. 6, Fig. 8 to Fig. 15, and the like.

The cylindrical lower rotary drum 12 and the upper rotary drum 14 are provided around the rotatable rotary shafts 12A and 14A, respectively, and are disposed parallel to each other with sandwiching the object to be cut. The lower rotary drum 12 and the upper rotary drum 14 are rotatable together with the rotary shafts 12A and 14A, respectively. The lower cutting blade 20 and the upper cutting blade 22 are mounted at the synchronous positions of the lower rotary drum 12 and the upper rotary drum 14, 12, the upper cutting edge 22 is positioned at the lowermost position of the upper rotary drum 14. The upper cutting edge 22 is located at the lowermost position of the upper rotary drum 14. [

The lower cutting edge 20 and the upper cutting edge 22 are detachably mounted on the lower groove 16 and the upper groove 18 formed in the outer peripheral portion of the lower rotary drum 12 and the upper rotary drum 14, And is fixed. Each of the lower groove portion 16 and the upper groove portion 18 is provided with rotary shafts 12A and 14A on the outer peripheral surfaces of the lower rotary drum 12 and the upper rotary drum 14, It is installed in a symmetrical position with the center.

As shown in Fig. 2, the lower rotary drum 12 has, for example, one lower groove portion 16 formed on the outer peripheral surface thereof and extending from one axial end of the lower rotary drum 12 to the other end thereof have. 3, the lower groove portion 16 has a twist angle (shearing angle)? In the circumferential direction of the lower rotary drum 12 and is formed from one end to the other end in the axial direction of the rotary shaft 12A .

3, the lower groove portion 16 is formed in a concave shape when viewed from the side, and has lower groove side surfaces 16a and 16b opposite to the circumferential direction of the lower rotary drum 12. As shown in Fig. The lower groove side surfaces 16a and 16b respectively have line segments passing through the center o1 of the rotary shaft 12A and having both ends in the circumference of the lower rotary drum 12, As shown in Fig. The lower groove side face 16a is formed at a position having a distance d in parallel with the diameter o-o line and the lower groove side face 16b is formed at a position having a different diameter (Not shown in the figure). The lower groove portion 16 has lower groove bottom surfaces 16c and 16d intersecting with lower groove surfaces 16a and 16b at angles of intersection angles? 1 and? 2, respectively. The lower groove bottoms 16c and 16d are formed so as to intersect with each other by sharing an intersection line 16e.

3, when the lower groove side 16a and the lower groove bottom 16c are the mounting reference planes of the lower cutting blade 20, (Shearing angle)? In the circumferential direction of the lower rotary drum 12 from one axial end of the rotary drum 12 to the other end thereof.

In the example of this embodiment, for example, the length of the lower rotary drum 12 in the axial direction is formed to be 1120 mm, and the twist angle (shearing angle)? Is formed at 11.2 °. The intersection angle? 1 between the lower groove side surface 16a and the lower groove floor 16c and the intersection angle? 2 between the lower groove side 16b and the lower groove floor 16d are formed at substantially right angles.

As shown in Figs. 3 and 4, the lower cutting edge 20 is formed, for example, in a rectangular shape when viewed from the side. The length of the lower cutting edge 20 in the longitudinal direction is substantially equal to the axial length of the lower rotary drum 12 and the length of the lower cutting edge 20 in the width direction is smaller than the length of the lower groove 16 16a, that is, longer than the depth of the lower side groove 16, as shown in Fig. The length of the lower cutting edge 20 in the thickness direction is substantially equal to the length of the lower groove bottom surface 16c of the lower groove 16. 4, the lower cutting edge 20 has two inclination angles? 3 and? 4 at the horizontal surface of the workpiece W and the surface of the cutting edge 21 opposed thereto, I have. In this case, the lower cutting edge 20 has a good cutting sensation and reduces the shear load applied to the blade tip 21, thereby preventing damage such as cracking of the blade tip 21 and improving durability Is possible.

3, 5, 6, and 13, a wedge-shaped fixing block 28 having a lower cutting edge 20 and a sphere rear surface 28a is provided in the lower side groove portion 16, .

The fixed block 28 includes, for example, a rectangular parallelepiped-shaped block body 28A as shown in Fig. Particularly, the block body 28A has one surface formed on the sphere rear surface 29 thereof. The gradient of the spherical rear surface 29 is, for example, 1/5. The block body 28A has a circular threaded hole 28a at the center in the longitudinal direction thereof and toward the opposite surface side of the sphere rear surface 29 as seen in plan view. The screw hole 28a penetrates from one major surface to the other major surface of the block main body 28A. The threaded hole 28a of the fixed block 28 has a left or a sloped surface and is screwable with the threaded surface 31a of a screw member 30 for a fixed block to be described later.

On the other hand, in the lower rotary drum 12, as shown in Figs. 5, 6, 13 and so on, the lower groove bottom surface 16d of the lower groove portion 16 is provided with, for example, a screw hole 12b are formed. To the screw hole 12b, a threaded surface 31b of a screw member 30 for a fixing block described later is screwed.

That is, the screw member 30 for the fixed block includes the shaft main body 31. The shaft main body 31 has threaded faces 31a and 31b which are provided at one end side and the other end side in the axial direction of the shaft main body 31 and are formed in opposite directions to each other with an intermediate portion in the axial direction of the shaft main body 31 as a boundary have. In this case, for example, the truncated conical surface 31a is formed on the left or the right oblique surface and the truncated conical surface 31b is formed on the right conical surface with the substantially central portion in the axial direction of the shaft body 31 as a boundary. In addition, a screw surface non-forming portion 31c having no screw surface is formed at the substantially central portion of the shaft body 31 in the axial direction. An engaging groove 31d of a rotary tool capable of rotating the shaft main body 31 is formed on one axial end surface of the shaft main body 31 (on the side where the screw surface 31a is formed) .

The lower cutting blade 20 is first disposed in the lower groove 16 of the lower rotary drum 12 as shown in Figure 13 when the lower cutting blade 20 is mounted on the lower rotary drum 12 . Next, one end side of the screw member 30 for the fixed block is screwed to the fixing block 28. [ A rotary tool (not shown) such as a hexagonal wrench is engaged with the engaging groove 31d of the screw member 30 for the fixed block from the outer side of the lower groove portion 16 and is rotated clockwise, When the screw member 30 is tightened, the other end side of the screw member 30 for the fixing block is screwed to the lower rotary drum 12. [ In this case, the threaded surface 31a of the screw member 30 for the fixed block is screwed to the threaded surface of the threaded hole 28a of the fixed block 28, and the threaded surface 31b Is screwed to the screw surface of the screw hole 12b of the lower rotary drum 12. [

The screw surface 31b of the screw member 30 for the fixing block is engaged with the threaded surface 12b of the screw hole 12b of the lower rotary drum 12 when the screw member 30 for the fixed block is fastened, ). On the other hand, the fixing block 28 is formed such that the screw hole 28a is formed on the left or the right and the threaded surface 31a of the screw member 30 for the fixing block is screwed to the left or the right hole 28a, So that the inside of the lower side groove portion 16 is swung toward the screw hole 12b side of the lower rotary drum 12 along the axial direction of the screw member 30 for the fixing block. At this time, the lower cutting edge 20 is pressed by the wedge action of the sphere rear surface 29 of the fixed block 28 to the lower side groove side 16a (the cutting blade receiving side) And is firmly fixed.

On the other hand, a rotary tool (not shown) such as a hexagonal wrench is engaged with the engaging groove 31d of the screw member 30 for the fixed block from the outside of the lower groove portion 16 and is rotated counterclockwise, The threaded surface 31b of the screw member 30 for the fixed block is moved along the axial direction of the screw member 30 for the fixed block as shown in Fig. 13, for example, (Double acting or retracted) so as to be spaced apart from the screw surface of the screw hole 12b of the lower rotary drum 12. [ A threaded surface 31a (left and right side) of the screw member 30 for the fixing block is screwed to the screw hole 28a and the fixing block 28 is screwed into the screw hole 28a, (Double-acting or retracting) to the outside of the lower side groove portion 16. At this time, the lower cutting edge 20 is separated from the lower side groove portion 16 by releasing the wedge action of the sphere rear face 29 of the fixing block 28.

Although the engaging groove 31d is formed on one axial end surface of the shaft body 31 in the screw member 30 for the fixed block, the engaging groove 31d is formed in the axial direction of the shaft body 31 Or may be formed on the other end surface in the axial direction. In this case, the engaging groove 31d may be formed on at least one end surface of the axial end surface and the other end surface of the shaft body 31, and the shaft body 31 may be configured to be rotatable.

Next, referring to Figs. 5, 6, 8, 9, 10 and 14, for example, with respect to the mounting structure of the upper cutting edge 22 detachably mounted on the upper rotary drum 14 , Will be described in detail below.

The upper rotary drum 14 is formed to have substantially the same shape as the lower rotary drum 12 and is formed on the outer peripheral surface of the upper rotary drum 14 from one end in the axial direction of the upper rotary drum 14 For example, one upper side groove portion 18 extending across the upper side. The upper groove 18 is provided on the outer circumferential surface of the upper rotary drum 14 at a symmetrical position about the rotary shaft 14A. The upper groove portion 18 has a twist angle (shearing angle)? In the circumferential direction of the upper rotary drum 14 and is inclined from one end in the axial direction of the rotary shaft 14A to the other end Respectively.

In the lower rotary drum 12, the configuration of the groove portion of the lower side groove 16 is set so that the lower cutting edge 20 is fixed by one fixing block 28. In the upper rotary drum 14, As shown in Figs. 6 and 14, the groove portion configuration of the upper groove portion 18 is set so that the upper cutting edge 22 is fixed to the pair of adjustment blocks 32, 34. As shown in Fig. The upper cutting edge 22 is formed in the same shape as the lower cutting edge 20 and has the same function.

As shown in Fig. 14, for example, the upper groove portion 18 is formed in a concave shape when viewed from the side and has upper groove side surfaces 18a and 18b opposite to the circumferential direction of the upper rotary drum 14 . The upper groove side surfaces 18a and 18b are formed as a plane parallel to the diameter of the upper rotary drum 14 through the center o2 of the rotary shaft 14A as shown in Fig. . The upper groove side surface 18a is formed at a position parallel to the diameter line segment (not shown) and at an interval therebetween, and the upper groove side surface 18b is formed at a position As shown in Fig. The upper groove portion 18 has upper groove bottoms 18c and 18d which intersect with the upper groove sides 18a and 18b at substantially right angles, respectively. Between the upper groove bottoms 18c and 18d, an upper groove bottom surface 18e having a flat upper cutting edge 22 is formed.

As shown in Figs. 5, 6, 8, 9, 10 and 14, for example, a wedge having an upper cutting edge 22 and a sphere rear surface 33 is provided in the upper groove portion 18. [ A pair of adjustment blocks 32 and 34 constituted by a wedge-shaped adjustment block 34 provided with an adjustment block 32 and a sphere rear face 35 of a rectangular shape are disposed.

One of the adjustment blocks 32 includes, for example, a rectangular parallelepiped-shaped block body 32A as shown in Fig. In the block body 32A, one surface is formed in the spherical surface 33. [ The gradient of the spherical rear surface 33 is, for example, 1/5, like the spherical surface 29 of the fixed block 28. [ The block body 32A has a circular screw hole 32a in a plan view as viewed in plan from the center in the longitudinal direction thereof and toward the opposite surface side of the sphere rear surface 33. [ The screw hole 32a penetrates from one major surface of the block main body 32A to the other major surface. The threaded hole 32a of the adjustment block 32 is formed with a left and a right slope and is provided on one of the pair of adjustment block screw members 36 and 38 And can be screwed onto the screw surface of the screw hole 37a. The block body 32A has, for example, two fixing screw holes 32b on both sides of the screw hole 32a with an interval in the longitudinal direction thereof. To the fixing screw hole 32b, a fixing screw member 208 to be described later is screwed.

The other adjustment block 34 has the same structure as the fixed block 28 except that the length of the adjustment block 34 in the longitudinal direction is shorter than that of the fixed block 28. [ In other words, the other adjustment block 34 includes a rectangular parallelepiped-shaped block body 34A, and one surface is formed on the spherical surface 35 in the block body 34A. The gradient of the spherical rear surface 35 is, for example, 1/5. The block body 34A has a circular screw hole 34a in a plan view as viewed in plan from the center of the block body 34A in the longitudinal direction and toward the opposite surface side of the sphere rear surface 35. [ The screw hole 34a penetrates from one major surface to the other major surface of the block main body 34A. The threaded hole 34a of the adjustment block 34 is formed with a left or a sloped surface and a threaded surface of the other adjustment screw member 38 of the pair of adjustment screw threads 36, 39a.

On the other hand, as shown in Figs. 5, 6, 14, and so on, the upper rotary drum 14 is provided with upper grooved surfaces 18c and 18d of the upper grooved portion 18, for example, A screw hole 14b is formed. Threaded surfaces of screw holes 37b and 39b of a pair of adjusting screw members 36 and 38 to be described later are screwed to one screw hole 14b and the other screw hole 14b .

That is, the screw members 36 and 38 for the pair of adjustment blocks include the shaft bodies 37 and 39, respectively. The shaft main bodies 37 and 39 are provided on one end side and the other end side in the axial direction of the shaft main bodies 37 and 39, 37a, 37b and 39a, 39b. In this case, for example, the threaded surfaces 37a and 39a are formed on the left and the right oblique surfaces, respectively, and the threaded surfaces 37b and 39b are engaged with the right and left ends of the shaft bodies 37 and 39, And is formed on a slope. In addition, screw base non-forming portions 37c and 39c are formed at the substantially central portion in the axial direction of the shaft main bodies 37 and 39, respectively, without thread surfaces. The end portions of the shaft bodies 37 and 39 in the axial direction (on the side where the screw surfaces 37a and 39a are formed) Grooves 37d and 39d are formed.

When the upper cutting edge 22 is mounted on the upper rotary drum 14, for example, as shown in Fig. 14, first, the screw surface 37a on one end side of the screw member 36 for one adjustment block, Is screwed into the screw hole 32a of the adjustment block 32 of one side. Next, a rotary tool (not shown) such as a hexagonal wrench is engaged with the engagement groove 37d of one of the adjustment block screw members 36 from the outside of the upper groove portion 18 and is rotated clockwise The threaded surface 37b of one of the adjustment block screw members 36 is engaged with the threaded surface of one screw hole 14b of the upper rotary drum 14 The screw is inserted. In this case, the screw surface 37b on the other end side of one screw member 36 for the adjustment block is screwed to the screw surface of one screw hole 14b of the upper rotary drum 14. The one adjustment block 32 is disposed in the upper groove 18 so that the surface opposite to the sphere rear surface 33 abuts the upper groove side 18a of the upper groove 18.

Further, one main surface side of the upper cutting edge 22 is disposed so as to abut the spherical surface 33 of one adjustment block 32.

The threaded surface 39a on the one end side of the screw member 38 for the other adjustment block is screwed into the screw hole 34a of the other adjustment block 34. [ Next, a rotary tool (not shown) such as a hexagonal wrench is engaged with the engaging groove 39d of the other adjusting block screw member 38 from the outside of the upper groove portion 18 and rotated clockwise The screw surface 39b of the screw member 38 for the other adjusting block is engaged with the other screw hole 38 of the upper rotary drum 14, (Unassembled surface) of the first engaging portion 14b. The other adjustment block 34 has a threaded hole 34a formed on the left or the right and a threaded surface 39a of the screw member 38 for the adjustment block screwed to the screw hole 34a The inside of the upper groove 18 is moved along the axial direction of the other adjusting block screw member 38 toward the screw hole 14b on the other side of the upper rotary drum 14, Forward).

At this time, by the wedge action of the spherical surface 33 of the one adjustment block 32 and the spherical surface 35 of the other adjustment block 34, the one main surface of the upper cutting edge 22 and the other main surface Are pressed and sandwiched between the spherical surface 33 of one adjustment block 32 and the spherical surface 35 of the other adjustment block 34, respectively. Accordingly, the upper cutting edge 22 is firmly fixed within the upper groove 18.

As described later, the mounting position of the upper cutting edge 22 is adjusted by the pair of adjustment blocks 32 and 34, and the position between the tips of the lower cutting edge 20 and the upper cutting edge 22 8, 9 and 10, the adjustment screw 32 of one of the adjustment blocks 32 has a screw thread 209 having a screw surface 209, And screwed into a plurality of fixing screw holes 32a. In this case, the fixing screw member 208 has at least one axial end surface thereof formed with an engaging groove 208a of a rotary tool for allowing the fixing screw member 208 to rotate. The fixing screw member 208 is screwed into the fixation screw hole 32a of the adjustment block 32 by rotating the rotation tool in the engagement groove 208a of the fixing screw member 208. [

9A and 10, the fixing screw member 208 is screwed so as to protrude from the screw hole 32a for fixation of one of the adjustment blocks 32 and is fixed to the fixing screw member 208 Is pressed against the upper groove bottom surface 18c of the upper groove portion 18 so that the one adjustment block 32 is firmly fixed in the upper groove portion 18. [

Conversely, when separating the upper cutting edge 22 from the upper rotary drum 14, for example, first, the fixing screw member 208 of the one adjustment block 32 shown in Figs. 8 to 10 And the pressing by the fixing screw member 208 to the upper groove bottom surface 18c is released. Next, a rotary tool (not shown) such as a hexagonal wrench is engaged with the engagement groove 37d of one of the adjustment block screw members 36 from the outside of the upper groove portion 18 and rotated in the counterclockwise direction When one screw member 36 for the adjustment block is loosened, one screw member 36 for the adjustment block is moved along the axial direction so as to be spaced apart from the screw surface of the screw hole 14b of the upper rotary drum 14 Move (double acting, retreat). One adjustment block 32 having screw holes 32a (left and right slopes) and screwed on the screw surfaces 37a (left and right slopes) of one of the adjustment block screw members 36 is provided on the upper side (Double-acting or retracting) to the outside of the groove portion 18. At this time, since the wedge action of the sphere rear face 33 of one adjustment block 32 is released, the upper cutting edge 22 can be separated from the upper groove portion 18. [

As described above, in this embodiment, by fastening or loosening the screw member 30 for the fixed block and the screw members 36 and 38 for the pair of adjusting blocks, the fixing block 28 and the pair of adjustment The blocks 32 and 34 are disposed in the lower groove portion 16 of the lower rotary drum 12 and in the upper groove portion 18 of the upper rotary drum 14, Can be swung and double-acting along the axial direction of the screw members (36, 38) Therefore, the lower cutting edge 20 and the upper cutting edge 22 can be easily mounted and separated with respect to the lower rotary drum 12 and the upper rotary drum 14, respectively.

In this shearing machine 10, for example, as shown in Figs. 15 (A) and 15 (B)

The length in the width direction of the lower cutting edge 20 and the upper cutting edge 22 is L1,

The depths of the lower side groove portion 16 and the upper side groove portion 18 are L2,

The lengths of the screw holes 28a of the fixed block 28 and the screw holes 32a and 34a of the pair of adjustment blocks 32 and 34 are L3,

The length of the screw hole 12b of the lower rotary drum 12 and the length of the screw holes 12b and 14b of the upper rotary drum 14 are L4,

The total length of the shaft main body 31 of the screw member 30 for the fixed block and the total length of the shaft main bodies 37 and 39 of the pair of screw members for adjustment block 36 and 38 are L5 ,

The length in the axial direction of the threaded surface 31a of the screw member 30 for the fixed block and the length in the axial direction of the threaded surfaces 37a and 39a of the pair of adjustment block screw members 36 and 38 is L6 ,

The length in the axial direction of the threaded surface 31b of the screw member 30 for the fixed block and the length in the axial direction of the threaded surfaces 37b and 39b of the pair of adjustment block screw members 36 and 38 are referred to as L7 ,

The length in the axial direction of the screw non-forming portion 31c of the screw member 30 for the fixed block and the length in the axial direction of the screw non-forming portions 37c and 39c of the pair of adjusting screw members 36 and 38 Is represented by L8,

L1> L2> L5> L3, and L4 or L5> L8> L6 or L7.

16 (A), when the fixing block 28 is inserted between the lower cutting edge 20 and the lower side groove 16 in the shearing machine 10, the fixing block 28 The wedge action of the fixing block 28 presses the lower cutting edge 20 against the lower groove side 16a of the lower groove portion 16 of the lower rotary drum 12 to fix . The fixed block 28 has a lower groove side surface 16b (the fixed block receiving surface) on which the surface opposite to the sphere rear surface 29 abuts and serves as a starting point of the whole of the sphere rear surface 29 of the fixed block 28 16A) and the other main surface of the lower cutting edge 20 is pressed against the lower side groove 16b on the side opposite to the fixed block receiving side 16b And can be firmly pressed against the side surface 16a (the cutting blade receiving surface). 16A) is also applied to the contact surface between the sphere rear surface 29 of the fixed block 28 and the lower cutting edge 20 when the fixing block 28 is inserted, The cutting blade 20 can be further firmly fixed to the lower groove side surface 16a of the lower groove portion 16 of the lower rotary drum 12 (the cutting blade receiving surface).

The upper cutting groove 22 of the upper rotary drum 14 is provided with a pair of adjustment blocks 32 and 32 so as to sandwich the upper cutting edge 22 from one main surface side and the other main surface side of the upper cutting blade 22, The spherical surface 33 of the one adjustment block 32 and the spherical surface 35 of the other adjustment block 34 are deformed by the wedge action of the pair of adjustment blocks 32, The upper cutting blade 22 can be fixed in the upper groove 18 of the upper rotary drum 14 by pressing and holding one and the other main surfaces of the upper cutting blade 22, On the other hand, each of the other adjustment blocks 32, 34 has an upper groove side surface 18a, 18b (a fixed block receiving surface) on which the surface opposite to the sphere rear surface 33, 35 abuts, On the other hand, on one surface and the other surface of the other of the spherical surfaces 33 and 35 of the other adjustment block 32 and 34, one surface and the other surface of the upper cutting blade 22 are pressed The arrow Ss of A). When the pair of adjustment blocks 32 and 34 are inserted, on the contact surfaces of the spherical surfaces 33 and 35 of the pair of adjustment blocks 32 and 34 and the upper cutting blade 22, (A) of FIG. 16), so that the one and the other main surface of the upper cutting edge 22 can be more firmly pressed and held.

14 and 16, by tightening or loosening a pair of screw members 36 and 38 for the adjustment block, the upper groove portion 18 can be prevented from being deformed, A pair of adjustment blocks 32 and 34 inserted between the upper side grooves 18a and 18b of the upper rotary drum 14 and the one main surface and the other main surface of the upper cutting blade 22 are disposed on the upper side The inside of the groove portion 18 can be swiveled in the axial direction of the pair of adjustment block screw members 36, 38 and swiveled.

In this case, particularly, as shown in Fig. 16 (B), between the swing distance (forward distance) of one adjustment block 32 and the swing distance (forward distance) of the other adjustment block 34, The strength of the pressing force (the arrow Ss in FIG. 16 (A)) against the upper cutting edge 22 due to the wedge action of the pair of adjustment blocks 32, 34 can be adjusted.

For example, when one adjustment block 32 is driven forward after the other adjustment block 34 is doubled (retracted), the upper cutting edge 22 is stronger than the pressing force of the other adjusting block 34, the pressing force of the one adjusting block 32 acts in the direction in which the pressing force acts, that is, in the circumferential direction of the upper rotating drum 14 It is possible to displace the upper rotary drum 14. Therefore, the upper cutting edge 22 is displaced by Lcr (amount of displacement) in the circumferential direction of the upper rotary drum 14, as shown in Fig. 16 (B). In this case, by adjusting the mounting position of the upper cutting edge 22 with respect to the lower cutting edge 20, the amount of clearance between the edges of the lower cutting edge 20 and the upper cutting edge 22 can be finely adjusted have. As the amount of displacement increases, fine adjustment of the amount of wrap between the edges of the lower cutting edge 20 and the upper cutting edge 22 becomes possible.

That is, in this shearing machine 10, the pair of adjustment blocks 32 and 34 are connected to the upper rotary drum (the lower rotary drum) by a simple operation of tightening or loosening the screw members 36 and 38 for the pair of adjustment blocks It is possible to swivel the inside of the upper groove portion 18 of the adjustment screw members 36 and 38 in the axial direction of the pair of adjustment block screw members 36 and 38 so as to simplify the workability and to prevent the lower cutting edge 20 and the upper cutting edge 22 can be easily and finely adjusted.

5, the diameter of the edge of the edge of the edge 21 of the lower cutting edge 20 is denoted by d1 and the edge of the edge 23 of the edge of the upper edge cutting edge 22 is defined as d1, The lower cutting edge 20 on the downstream side (output side) is set so as to rotate ahead of the upper cutting edge 22 on the upstream side (inlet side) do. 6 and 15, the cutting edge 10 of the lower cutting edge 20 and the cutting edge 22 of the upper cutting edge 22 are cut and cut at the cutter 10, The mounting position of the upper cutting edge 22 is adjusted by the pair of adjustment blocks 32 and 34 so that the water W is inserted and cut and the lower cutting edge 20 and the upper cutting edge 22 And the alignment between the nibs is performed.

7, in the shear device 10, the start position where the object W to be cut is entrained in the cutting edge 21 of the lower cutting edge 20 and the cutting edge 23 of the upper cutting edge 22, The upper cutting edge 22 is formed with inclined surfaces 210 and 212 which are spaced apart from the horizontal surface of the workpiece W and form inclination angles? 3 and? 4. A retraction angle? 5 is formed in the lower cutting edge 20 by an angle perpendicular to the workpiece W. Therefore, the lower cutting edge 20 is formed with inclined faces 214 and 216 that are separated from the horizontal surface of the workpiece W to form inclination angles? 6 and? 7. The retraction angle [theta] 5 is regulated by the nodal angles [theta] d and [theta] d2 and the inclination angles [theta] 6 and [ The relationship between the retraction angle? 5, the tilt angle? 6,? 7 and the angle of tip angles? D1 and? D2 is set in the range of? 5 = 90-? D1 -? 6 (degrees) or? 5 = 90 -? D2 -? 7 (degrees) If the angle exceeds 10 degrees, the shear properties deteriorate similarly to the case of less than 0 degrees. In addition, since the interference with the object to be cut W occurs depending on the angle of the cutting edges? 6 and? 7, . The retraction angle may be formed by the angle perpendicular to the workpiece W with respect to the upper cutting edge 22 and the retraction angle may be defined as? A, inclination angles? 3,? 4, The relationship between the angle of cutter edges θu1 and θu2 is set in the range of θa = 90-θu1-θ4 (degrees) or θa = 90-θd2-θ3 (degrees), and as in the case of the lower cutting edge 20, , And between 0 and 10 degrees.

In this shearing machine 10, particularly, after the positioning between the blade tip 21 of the lower cutting blade 20 and the blade tip 23 of the upper cutting blade 22 is performed once, for example, The other adjustment block 34 of the pair of adjustment blocks 32 and 34 may be replaced with a new cutting blade (not shown), for example, as shown in Fig. 14, The upper cutting edge 22 is separated from the upper groove 18 after the pressing force against the upper cutting edge 22 is loosened by the wedge action of the other adjustment block 34 .

Next, the prepared new cutting edge is disposed so as to come into contact with the spherical surface 33 of one of the adjustment blocks 32 of the pair of adjustment blocks 32, 34. The other adjustment block 34 is moved by the wedge action between the other adjustment block 34 and the other adjustment block 34 by a new cutting blade 34 As shown in Fig. At this time, one of the adjustment blocks 32 functions as a reference positioning block in positioning between the blade tip 21 of the lower cutting blade 20 and the blade tip 23 of the upper cutting blade 22 . Therefore, when the upper cutting edge 22 is to be replaced with a new cutting edge, only the other adjustment block 34 is only driven to withdraw (disengage) the upper cutting edge 22 (old cutting edge) It is not necessary to make any adjustment on one of the adjustment blocks 32 (positioning blocks), so that the replacement operation of the upper cutting edge 22 is performed extremely easily.

The shear machine 10 incorporates a backlash adjusting mechanism 220 having a simple mechanism in the drive gear portions 124 and 126 of the drive mechanism 24. [ The backlash adjustment mechanism 220 eliminates the problem that the rotational amount of the drive gear portions 124 and 126 is delayed due to the backlash and the transmission of the rotational driving force from the servo motor M becomes inaccurate, To smoothly transmit power without generating a rotational delay of a substantial amount of backlash when the rotational direction of the rotational shaft 12A of the electric motor 12A is switched between normal and reverse. That is, according to the backlash adjusting mechanism, backlash can be appropriately absorbed, and power transmission can be always smoothly performed.

Since the backlash adjusting mechanism 220 incorporated in the driving gear portions 124 and 126 has the same structure, the backlash adjusting mechanism 220 of the one driving gear portion 124 will be described in detail. 19, 21, and 22, the helical gear 128 fixed to the rotary shaft 12A of the lower rotary drum 12 is referred to as a periodic gear, and is connected to a helical gear The helical gear 130 is referred to as an adjusting gear.

17, 18, 19, and 21, the backlash adjusting mechanism 220 is configured to connect the main gear 128 of the drive gear portion 124 and the adjustment gear 130 And includes a shaft portion 222. One end side of the connecting shaft portion 222 projects from the main surface side of the adjusting gear 130 and the other end side of the connecting shaft portion 222 projects from the main surface side of the main shaft 128. As shown in Figs. 17 and 19, the other axial end side of the connecting shaft portion 222 is fixed by a fixing hole 224 such as a loosening preventing nut. 19 and 21, the adjusting gear 130 is provided with an annular concave portion (not shown) around the connecting shaft portion 222 from one end in the axial direction of the connecting shaft portion 222 to an intermediate portion in the axial direction 226). The annular concave portion 226 is provided in the main gear 128 and the adjusting gear 130 so as to communicate with the insertion hole 228 through which the connecting shaft portion 222 is inserted. 21, convex portions 230 having a rectangular cross section are formed on the contact surface 226a of the annular concave portion 226 in the vicinity of the connecting shaft portion 222 side, for example, as shown in Fig. .

19 and 21, the backlash adjusting mechanism 220 includes a pair of contact blocks 232 arranged in the radial direction of the connecting shaft portion 222 and an annular recess 226, And a pair of backlash adjusting blocks 234 that are inserted between the inner circumferential surface 226b of the pair of contact blocks 232 and the pair of contact blocks 232 and abut on the pair of contact blocks 232. [

As shown in Figs. 20A and 21, the pair of contact blocks 232 includes a block-shaped block body 232A having a square cross section. The block body 232A has, for example, an arc-shaped fitting surface 236 formed on one main surface thereof and a spherical surface 238 formed on the other main surface thereof. The sphere rear surface 238 has a gradient of, for example, 5/30 from one end to the other end in the longitudinal direction of the other main surface of the block body 232A. The pair of contact blocks 232 are disposed to face each other in the radial direction of the connecting shaft portion 222 so that the fitting surface 236 thereof is fitted to a part of the peripheral surface of the connecting shaft portion 222. [

The pair of backlash adjusting blocks 234 includes a block-shaped block body 234A having a rectangular cross section as shown in Fig. 20 (B) and Fig. The block body 234A has, for example, a semicylindrical swelling portion 240 on one main surface thereof. The block body 234A has a screw hole 240a extending from one longitudinal end face of the block body 234A to the other end face. The screw hole 240a is provided along the axial direction of the swelling portion 240. [ On the other main surface of the block body 234A, a spherical rear surface 242 is formed. The sphere rear surface 242 has a gradient of, for example, 5/30 from one end to the other end in the longitudinal direction of the other main surface of the block body 234A. The pair of backlash adjusting blocks 234 are arranged such that the spherical rear surface 242 abuts on the spherical surface 238 of the pair of contact blocks 232 and the spherical surface of the spherical recess 226, And is disposed in the adjustment gear 130 so as to abut against the inner circumferential surface 226b. The pair of backlash adjusting blocks 234 is inserted and arranged in the annular recess 226 from the outer side of the main surface side of the adjusting gear 130. [

The backlash adjusting mechanism 220 includes a pair of backlash adjusting screw members 250 as shown in Figs. 21, the backlash adjusting screw member 250 includes a shaft main body 250A, and the shaft main body 250A is formed by arranging the shaft main body 250A in such a manner that the shaft main body 250A And has slopes 252 and 254. For example, the screw surface 252 is formed on the left or the oblique surface, and the screw surface 254 is formed on the right surface. The shaft main body 250A has an engaging groove 256 of a rotary tool (not shown) that allows the shaft main body 250A to rotate on one end side in the axial direction, Non-threaded portion 258 on which a threaded surface is not formed.

One of the pair of backlash adjusting screw members 250 is screwed into the backlash adjusting block 234 at one end in the axial direction and the other end in the axial direction is screwed into the adjusting gear 130. In this case, the adjustment gear 130 has a screw hole 260 formed on the contact surface 260a of the annular recess 226. [ The screw hole 260 is formed to extend in the tooth thickness direction of the adjustment gear 130 and is formed from the end face of the contact face 260a to the contact face of the adjustment gear 130 and the main gear. Each of the pair of backlash adjusting screw members 250 has a threaded surface 252 on one axial end side thereof and a threaded surface of a screw hole 240a of the backlash adjusting block 234, And the threaded surface 254 of the other end of the adjusting gear 130 is threadedly engaged with the threaded surface of the threaded hole 260 of the adjusting gear 130.

21 and 22 (A), the pair of backlash adjusting blocks 234 are formed by the wedge action of the pair of backlash adjusting blocks 234. In this case, One and the other sphere rear surface 242 of the contact block 232 press the sphere rear surface 238 of one and the other of the contact block 232, respectively. The pair of backlash adjusting blocks 234 press the connecting shaft portion 222 from both sides in the radial direction of the connecting shaft portion 222 through the contact block 232 to clamp and fix the connecting shaft portion 222 . In this case, the pair of backlash adjusting blocks 234 are formed such that the inner circumferential surface 226b (backlash adjusting block receiving surface) of the annular recess 226 in which the surface opposite to the sphere rear surface 242 abuts, The spherical surface 238 of the pair of contact blocks 232 is pressed against the entire surface of the one and the other spherical surface 242 of the pair of backlash adjusting blocks 234 The arrow Ss of FIG. When the pair of backlash adjusting blocks 234 are inserted into the pair of backlash adjusting blocks 234, the contact surfaces of the spherical rear surface 242 of the pair of backlash adjusting blocks 234 and the spherical rear surface 238 of the pair of contact blocks 232, Since the frictional force (indicated by the arrow Ff in FIG. 22 (A)) also acts, the connecting shaft portion 222 can be more firmly fixed. Therefore, the connecting shaft portion 222 is prevented from being separated from the annular recess 226, and is stably embedded in the adjusting gear 130. [

An example of a method of mounting and separating the pair of contact blocks 232 and the pair of backlash adjusting blocks 234 to the adjusting gear 130 will be described with reference to Figs. This will be described in detail below.

That is, as a method for mounting the pair of contact blocks 232 and the pair of backlash adjusting blocks 234 between the annular concave portion 226 of the adjustment gear 130 and the connecting shaft portion 222, First, one end of one backlash adjusting screw member 250 is screwed to one of the backlash adjusting blocks 234.

Next, the spherical rear surface 242 of one backlash adjusting block 234 and the spherical rear surface 238 of one of the contact blocks 232 are brought into contact with each other, and the spherical rear surface 238 of one of the contact blocks 232 One of the backlash adjusting block 234 and one of the contact blocks 232 is inserted into the annular recess 226 while being fitted to a part of the peripheral surface of the connecting shaft portion 222. [ In this case, one backlash adjusting block 234 and one contact block 232 are disposed on one side of the connecting shaft portion 222 that faces the radial direction.

Likewise, the other backlash adjusting block 234 and the other contact block 232 are disposed on the other side opposite to the radial direction of the connecting shaft portion 222.

The backlash adjusting block 234 is screwed to one of the backlash adjusting blocks 234 and the backlash adjusting screw member 250 is fastened from one end thereof, (Advances) in the annular recess 226 along the axial direction of the backlash adjusting screw member 250 on one side and the other side, respectively. That is, a rotary tool (not shown) is engaged with the engaging grooves 256 of the pair of backlash adjusting screw members 250 from the outer side of the main surface side of the adjusting gear 130 to rotate the shaft body 250A clockwise The screw surfaces 254 on the other axial end side of the pair of backlash adjusting screw members 250 are screwed into the screw surfaces of the screw holes 260 of the adjustment gear 130 Forward). A pair of backlash adjusting blocks 240 having screw holes 240a (left and right slopes) and threaded surfaces 252 (left and right sides) of the backlash adjusting screw member 250 are screwed to the screw holes 240a, Each of the pair of backlash adjusting screw members 250 includes a pair of backlash adjusting screw members 250. The pair of backlash adjusting screw members 250 are rotatably supported on the screw surfaces 252 of the pair of backlash adjusting screw members 250, Forward).

At this time, due to the wedge action of the pair of backlash adjusting blocks 234, the spherical rear surface 238 of the pair of contact blocks 232 presses the spherical rear surface 242 of the pair of backlash adjusting blocks 234 do. The connecting shaft portion 222 is pressed and held by the pair of backlash adjusting blocks 234 from both sides of the connecting shaft portion 222 opposed to each other in the radial direction through the pair of contact blocks 238, And is stably fixed in the concave portion 226.

Conversely, as a method of separating the pair of backlash adjusting blocks 234 and the pair of contact blocks 232 from each other between the annular recess 226 of the adjusting gear 130 and the connecting shaft portion 222, The other backlash adjusting screw member 250 is released from the one end side so that the other backlash adjusting block 234 is moved in the direction of the axis of the other backlash adjusting screw member 250 (Recessed) in the annular concave portion 226 along the direction of the arrow.

That is, a rotary tool (not shown) is engaged from the outside of the main surface side of the adjustment gear 130 to the engagement groove 256 of the other backlash adjusting screw member 250, The threaded surface 254 on the other axial end side of the backlash adjusting screw member 250 is moved in the direction away from the threaded surface 260 of the adjustment gear 130 · Retreat). And the threaded surface 252 (the left and the right side) of the other backlash adjusting screw member 250 is screwed to the screw hole 240a with the threaded hole 240a The backlash adjusting block 234 is disposed along the threaded surface 252 on the one axial end side of the other backlash adjusting screw member 250 in a direction away from the annular recessed portion 226 of the adjusting gear 130 (Double acting / retracting).

At this time, since the wedge action of the other backlash adjusting block 234 is canceled, the gap between the annular recess 226 and the connecting shaft portion 222 is changed from the backlash adjusting block 234 to the other Block 232 can be removed.

The pair of backlash adjusting blocks 234 and the contact blocks 232 are connected to the upper rotary drum 14 only by tightening or loosening the pair of backlash adjusting screw members 250 as described above, It is possible to reciprocate in the axial direction of the rotary shaft 14A of the annular recess 226, that is, the direction of insertion into the annular recess 226 and the direction away from the annular recess 226. [ Therefore, the backlash adjusting block 234 and the contact block 232 can be easily mounted and separated between the inner circumferential surface 226b of the annular recess 226 and the outer circumferential surface of the connecting shaft portion 222. [

In this case, as shown in Fig. 22, the progression amount (lead) per revolution of the screw surface 252 (left and right slope) and the screw surface 254 (unison surface) of the backlash adjusting screw member 250 is represented by? When the amount of rotation of the backlash adjusting screw member 250 is n and the amount of advance of the screw surfaces 252 and 254 of the backlash adjusting screw member 250 is X and Y, = eta x n, and the pair of backlash adjusting blocks 234 advances and moves to a quantity Z (forward amount) obtained by [X + Y = 2 et n].

That is, since the pair of backlash adjusting screw members 250 have the screw surfaces 252 (left and right slopes) and the screw surfaces 254 (unison surfaces) at one end side and the other end side in the axial direction, The pair of backlash adjusting blocks 234 can be whipped (forward) or double-moved (retracted) by twice the lead? Per one rotation as shown in the above calculation formula. Therefore, in the shear machine 10, it is possible to shorten the time required for attaching and separating the pair of backlash adjusting screw members 250 to the pair of backlash adjusting blocks 234, and further, The backlash adjusting block 234, and the backlash adjusting screw member 250 to the adjusting gear 130. In addition,

In this shearing machine 10, as shown in Fig. 22 (B), the distance between the whistle distance (advancing distance) of one backlash adjusting block 234 and the whistle distance of the other backlash adjusting block 234 It is possible to adjust the strength of the pressing force with respect to the connecting shaft portion 222 by the wedge action of the pair of backlash adjusting blocks 234. [

For example, when the backlash adjusting block 234 is moved backward after one of the backlash adjusting blocks 234 is moved backward, the other backlash adjusting block 234 is rotated by the wedge action of the other backlash adjusting block 234 The pushing force of the other backlash adjusting block 234 (the arrow Ss in FIG. 22 (B)) is stronger than the pushing force of the one backlash adjusting block 234, It is possible to displace the upper rotary drum 14 in the direction in which the upper rotary drum 14 is operated (the circumferential direction of the regulating gear 130). In this case, the center axis op of the connection shaft portion 222 is displaced by [?] With respect to the rotation direction of the adjustment gear 130 as shown in Fig. 22 (B). Therefore, the center line op of the connecting shaft portion 222 is shifted to the position of the center line opδ shown in Fig. 22 (B).

This amount of displacement [delta] is the sum of the amount of advancement and retraction [Z (Z)] when one backlash adjusting screw member 250 is caused to double move (retract) and the other backlash adjusting screw member 250 is whipped And the gradient of the spherical surfaces 238 and 242 on both sides of the pair of contact blocks 232 and the pair of backlash adjusting blocks 234. In the example of this embodiment, since the gradient of the spherical surfaces 238 and 242 is 5/30, the amount of displacement [delta] is 2 (mm) when the amount of advancement and retraction [Z] × (5/30), which is approximately 0.333 mm.

The adjusting gear 130 and the main gear 128 are pressed in the rotating direction of the upper rotating drum 14 through the connecting shaft portion 222 so that the upper rotating drum 14 can be displaced in the rotating direction thereof, It is possible to adjust the shift of the teeth of the gear 130 and the main gear 128 and adjust the backlash between the drive gear portion 124 and the toothed portion 122 of the main shaft (main shaft) 112.

That is, in this shearing machine 10, only the pair of backlash adjusting screw members 250 are fastened or loosened so that the pair of backlash adjusting blocks 234 can be engaged with the pair of backlash adjusting screw members 250, The operation can be simplified and the backlash in the meshing between the drive gear portion 124 and the toothed portion 122 of the main shaft (main shaft) 112 can be easily adjusted . The number of backlash adjusting mechanisms 220 incorporated in the drive gear portion 124 is not particularly limited and may be any number of gears such as the toothed portion 122 of the main shaft (main shaft) 112, the main gear 128, In consideration of the tooth width, torque and the like of the gears.

The shear machine 10 also includes a mounting position adjustment support mechanism 270 that can simply support fine adjustment of the mounting position of the lower cutting edge 20 and the upper cutting edge 22, The support mechanism 270 is built in the driven gear portion 150 of the driven mechanism 26, for example.

The mounting position adjustment supporting mechanism 270 is configured to connect the helical gear 152 and the reinforcing member 154 of the driven gear portion 150 to each other as shown in Figs. 23, 24, 25, And a connecting shaft portion 272. The connecting shaft portion 272 is disposed such that one axial end side thereof protrudes from the main surface side of the reinforcing member 154 and the other axial end side thereof protrudes from the main surface side of the helical gear 152. The other axial end side of the connecting shaft portion 272 is fixed by a fixing hole 274 such as a loosening preventing nut as shown in Figs. 25 and 26, the reinforcing member 154 has an annular concave portion (not shown) around the connecting shaft portion 272 from one end in the axial direction of the connecting shaft portion 272 to an intermediate portion in the axial direction 276). The annular recess 276 is provided in the helical gear 152 and the reinforcing member 154 so as to communicate with the insertion hole 278 through which the connection shaft portion 222 is inserted. 26, a convex portion 277 having a rectangular section, for example, is formed on the contact surface 276a of the annular concave portion 276, particularly at a portion near the connection shaft portion 272 side as shown in Fig. .

25 and 26, the mounting position adjustment supporting mechanism 270 includes a pair of contact blocks 280 arranged opposite to each other in the radial direction of the connecting shaft portion 272, and an annular recessed portion And a pair of mounting position adjustment support blocks 282 which are inserted between the inner circumferential surface 276b of the pair of contact blocks 280 and the pair of contact blocks 280 and abutted with the pair of contact blocks 280. [ The pair of contact blocks 280 has the same structure as the contact block 232 of one of the constituent members of the backlash adjusting mechanism 220 (see FIG. 20A).

That is, the pair of contact blocks 280 includes a block-shaped block body 280A having a square cross section. The block body 280A has, for example, an arcuate fitting surface 284 formed on one main surface thereof and a spherical rear surface 286 formed on the other main surface thereof. The sphere rear surface 286 has a gradient of, for example, 5/30 from one end to the other end in the longitudinal direction of the other principal surface of the block body 280A. The pair of contact blocks 280 are disposed to face each other in the radial direction of the connecting shaft portion 272 such that the fitting surface 284 thereof is fitted to a part of the peripheral surface of the connecting shaft portion 272.

The pair of mounting position adjustment support blocks 282 has the same structure as that of the backlash adjustment block 234 in one component of the backlash adjustment mechanism 220 (see FIG. 20 (B)). That is, the pair of mounting position adjustment support blocks 282 includes a block-shaped block main body 282A having a square cross section. The block body 282A has, for example, a semi-cylindrical bulged portion 288 on one main surface thereof. The block body 282A has a screw hole 288a extending from one end face in the longitudinal direction of the block body 282A to the other end face. The screw hole 288a is provided along the axial direction of the bulged portion 288. A sphere rear surface 290 is formed on the other main surface of the block main body 282A. The sphere rear surface 290 has a gradient of, for example, 5/30 from one end to the other end in the longitudinal direction of the other principal surface of the block body 282A. The pair of mounting position adjustment support blocks 282 are arranged such that the sphere rear surface 290 thereof abuts against the sphere rear surface 286 of the pair of contact blocks 280 and the swelling portion 288 is in contact with the annular recessed portion 282 276 in the axial direction. The pair of mounting position adjustment support blocks 282 are inserted and arranged in the annular recess 276 from the outer side of the main surface side of the reinforcing member 154.

The mounting position adjustment supporting mechanism 270 includes a pair of mounting position adjusting supporting screw members 300 as shown in Figs. The mounting position adjusting support screw member 300 has the same structure as that of the backlash adjusting screw member 250 in the constituent member of the backlash adjusting mechanism 220.

26, the mounting position adjustment supporting screw member 300 includes a shaft main body 300A, and the shaft main body 300A is configured such that the shaft main body 300A moves in the opposite directions And has formed thereon the arcuate surfaces 302 and 304. For example, the screw surface 302 is formed on the left or the sloping surface, and the screw surface 304 is formed on the right surface. The shaft main body 300A has an engaging groove 306 of a rotary tool (not shown) that allows the shaft main body 300A to rotate on one end side in the axial direction, Non-threaded portion 308 on which a threaded surface is not formed.

One end of the pair of mounting position adjustment support screw members 300 is screwed into the mounting position adjustment support block 282 and the other end side in the axial direction is screwed into the reinforcing member 154. In this case, the reinforcing member 154 has a screw hole 310 formed in the contact surface 276a of the annular recess 276. [ The screw hole 310 extends in the thickness direction of the flange portion 154B of the reinforcing member 154 and extends from the end face of the contact face 276a to the contact face of the reinforcing member 154 and the helical gear 152 . Each of the pair of mounting position adjustment support screw members 300 is configured such that the screw surfaces 302 at one end in the axial direction thereof and the screw surfaces of the screw holes 288a of the mounting position adjustment support block 282 are screwed And the threaded surface 304 of the other end side in the axial direction and the threaded surface of the threaded hole 310 of the reinforcing member 154 are threadedly engaged.

In this shearing machine 10, for example, as shown in Fig. 25 (A), by the wedge action of the pair of mounting position adjustment support blocks 282, the pair of mounting position adjustment support blocks 282 One and the other sphere rear surface 290 of the contact block 280 press the sphere rear surface 286 on one side and the other side of the contact block 280, respectively. The pair of mounting position adjustment support blocks 282 press the connection shaft portions 272 from both sides of the connection shaft portion 272 in the radial direction of the connection shaft portion 272 through the contact block 280 so that the connection shaft portion is held and fixed . In this case, each of the pair of mounting position adjustment support blocks 282 has an inner circumferential surface 276b (an inner circumferential surface 276b of the mounting position adjustment support block receiving surface 274a) of an annular concave portion 276 to which a surface opposite to the sphere rear surface 290 abuts The spherical surface 286 of the pair of contact blocks 280 is pressed against the entire surface of the one and the other spherical surface 290 of the pair of mounting position adjustment support blocks 282 (Arrow Ss in Fig. 26 (A)). When the pair of mounting position adjustment support blocks 282 are inserted, the sphere rear surface 290 of the pair of mounting position adjustment support blocks 282 and the sphere rear surface 286 of the pair of contact blocks 280, A frictional force (indicated by arrow Ff in Fig. 26 (A)) is also applied to the contact surface of the connecting shaft portion 272, so that the connecting shaft portion 272 can be further firmly fixed. Therefore, the connection shaft portion 272 is prevented from separating from the annular recess 276, and stably embedded in the reinforcing member 154. [

23 to 26, an example of a method of mounting and separating the pair of contact blocks 280 and the pair of mounting position adjustment support blocks 282 to the reinforcing member 154 will be described with reference to Figs. , Will be described in detail below.

That is, as a method for mounting the pair of contact blocks 280 and the pair of mounting position adjustment supporting blocks 282 between the annular concave portion 276 of the reinforcing member 154 and the connecting shaft portion 272, For example, first, one end of one mounting position adjustment support screw member 300 is screwed to one mounting position adjustment support block 282.

Next, the spherical surface 290 of one mounting position adjustment support block 282 and the spherical surface 286 of one of the contact blocks 282 are brought into contact with each other, and the fitting surface of one of the contact blocks 280 One of the mounting position adjustment support block 282 and one of the contact blocks 280 is inserted into the annular recess 276 in a state in which the one mounting position adjustment supporting block 282 and the one mounting block 284 are fitted to a part of the peripheral surface of the connecting shaft portion 272. In this case, one mounting position adjustment support block 282 and one contact block 280 are disposed on one side opposite to the radial direction of the connection shaft portion 272.

Likewise, the other mounting position adjustment support block 282 and the other contact block 280 are disposed on the other side opposite to the radial direction of the connection shaft portion 272.

The mounting position adjustment support screw member 300 screwed to the mounting position adjustment support block 282 on one side and the other side is fastened from one end side thereof, The block 282 rotates (advances) in the annular recess 276 along the axial direction of the mounting position adjustment support screw member 300 on one side and the other side. That is, a rotary tool (not shown) is engaged with the engaging grooves 306 of the pair of mounting position adjustment supporting screw members 300 from the outer side of the main surface side of the flange portion 154B of the reinforcing member 154 The threaded surface 304 on the other axial end side of the pair of mounting position adjustment supporting screw members 300 is screwed into the threaded hole 310 of the reinforcing member 154 ) (Screwing in). A pair of mounting portions 282a having a screw hole 288a (left and right slope) and threaded surfaces 302 (left and right sides) of the mounting position adjustment supporting screw member 300 are screwed to the screw holes 288a The position adjustment support block 282 is configured such that the screw rotation direction of the threaded hole 310 of the reinforcing member 154 along the threaded surface 302 on one axial end side of the pair of mounting position adjustment support screw members 300 (Forward).

At this time, due to the wedge action of the pair of mounting position adjustment support blocks 282, the spherical rear surface 286 of the pair of contact blocks 280 contacts the spherical surface of the pair of mounting position adjustment support blocks 282 290). The connection shaft portion 272 is pressed and held by the pair of mounting position adjustment support blocks 282 from the opposite sides of the connection shaft portion 272 in the radial direction through the pair of contact blocks 280, And is stably fixed in the annular recess 276.

Conversely, as a method for separating the pair of mounting position adjustment support block 282 and the pair of contact blocks 280 from each other between the annular concave portion 276 of the reinforcing member 154 and the connection shaft portion 272, For example, as shown in Fig. 26, one of the pair of mounting position adjusting support screw members 300 is released from one end thereof, for example, by the one mounting position adjusting supporting screw member 300 , The one mounting position adjustment support block 282 moves in the annular recessed portion 276 in the double direction (retreat) along the axial direction of one mounting position adjustment support screw member 300.

That is, a rotary tool (not shown) is engaged with the engaging groove 306 of one mounting position adjustment supporting screw member 300 from the outer side of the main surface side of the flange portion 154B of the reinforcing member 154, The threaded surface 304 on the other axial end side of the mounting position adjustment support screw member 300 of one of the mounting position adjustment supporting screw members 300 is screwed into the threaded surface 310 of the reinforcing member 154, (Double acting or retracted) in a direction away from the main body. A mounting position adjusting support block 288a having a screw hole 288a (left and right slope) and screwed on the threaded surface 288a of the mounting position adjusting support screw member 300 The engaging portion 282 is formed so as to extend in the direction away from the annular recessed portion 276 of the reinforcing member 154 along the threaded surface 302 on one end side in the axial direction of one mounting position adjustment supporting screw member 300 Move (double acting, retreat).

At this time, since the wedge action of one mounting position adjustment support block 282 is canceled, the mounting position adjustment support block 282 and the other mounting position adjustment support block 282 are separated from each other between the annular recess 276 and the connection shaft portion 272, The contact block 280 can be separated from each other.

The pair of mounting position adjustment support blocks 282 and the contact blocks 280 can be moved upward or downward by only tightening or loosening the pair of mounting position adjustment support screw members 300 as described above, It is possible to reciprocate in the axial direction of the rotary shaft 14A of the drum 14, that is, the direction of insertion into the annular recess 276 and the direction away from the annular recess 276. [ Therefore, the mounting position adjustment support block 282 and the contact block 280 can be easily mounted and separated between the inner circumferential surface 276b of the annular recess 276 and the outer circumferential surface of the connecting shaft portion 272 have.

26, the progression amount (lead) per revolution of the screw surface 302 (left and right slope) and the screw surface 304 (unison surface) of the mounting position adjustment supporting screw member 300 is set to be when the amount of rotation of the mounting position adjustment supporting screw member 300 is n and the amount of advance of the thread faces 302 and 304 of the mounting position adjusting supporting screw member 300 is X and Y, = eta x n and Y = eta x n and the pair of mounting position adjustment support blocks 282 advances and moves to a quantity Z (forward amount) obtained by [X + Y = 2 et n].

That is, the pair of mounting position adjustment supporting screw members 300 have the screw surfaces 302 (left and right slopes) and the screw surfaces 304 (unison surfaces) respectively at one end side and the other end side in the axial direction Therefore, as shown in the above calculation formula, the pair of mounting position adjustment support blocks 282 can be swung (forward) or double-moved (retracted) by twice the lead? Per revolution. Therefore, in the shear machine 10, the time required for mounting and dismounting of the pair of mounting position adjustment supporting screw members 300 to the pair of mounting position adjusting supporting blocks 282 can be shortened Further, it is connected to the shortening of the built-in operation of the mounting position adjusting support block 282 and the mounting position adjusting supporting screw member 300 to the reinforcing member 154.

In this shearing machine 10, as shown in Fig. 26 (B), the swing distance (forward distance) of one mounting position adjustment support block 282 and the swing distance of the other mounting position adjustment support block 282 It is possible to adjust the strength of the pressing force with respect to the connecting shaft portion 272 due to the wedge action of the pair of mounting position adjustment support blocks 282 by setting the difference between the shortest distance and the distance (forward distance).

For example, when the other mounting position adjustment support block 282 is driven forward after causing the other mounting position adjustment support block 282 to double move (retreat), the other mounting position adjustment support block 282 The pressing force (arrow Ss in FIG. 26 (B)) against the connecting shaft portion 272 due to the wedge action of the mounting position adjustment supporting block 282 is stronger than the pressing force of the mounting position adjustment supporting block 282, It is possible to displace the upper rotary drum 14 in the direction in which the pressing force of the adjustment support block 282 acts (in the circumferential direction of the driven gear 152). In this case, the center axis op of the connecting shaft portion 272 is displaced by [delta] with respect to the rotational direction of the driven gear 152, as shown in Fig. 26 (B). Therefore, the center line op of the connecting shaft portion 272 is shifted to the position of the center line opδ.

This displacement amount [delta] is the amount of displacement [Z] when the one mounting position adjustment supporting screw member 300 is double-moved (retracted) and the other mounting position adjusting supporting screw member 300 is whipped And the slope of the spherical surfaces 286 and 290 of both the abutting surfaces of the pair of contact blocks 280 and the pair of mounting position adjustment support blocks 282. In the example of this embodiment, since the gradient of the spherical surfaces 286 and 290 is 5/30, the amount of displacement [delta] is 2 (mm) when the amount of advancement and withdrawal [Z] × (5/30), and becomes about 0.333 mm.

The reinforcing member 154 and the driven gear 152 are pressed in the rotating direction of the upper rotating drum 14 through the connecting shaft portion 272 so that the upper rotating drum 14 can be displaced in the rotating direction thereof, The adjustment of the mounting position of the cutting blade 20 and the upper cutting blade 22 can be easily supported. In this shearing machine 10, as described above, the pair of adjustment blocks 32 and 34 are disposed in the upper groove portion 18 along the axial direction of the pair of screw members for adjustment block 36 and 38 The position of the upper cutting edge 22 relative to the lower cutting edge 20 is finely adjusted and the distance between the lower cutting edge 20 and the upper cutting edge 22 is adjusted by finely adjusting Of the lower cutting edge 20 and the edge 23 of the upper cutting edge 22 by the action of the mounting position adjustment support mechanism 270 For example, fine adjustment of the amount of clearance and the amount of lapping can be simply supported.

That is, in this shearing machine 10, the action / effect of the pair of adjustment blocks 32, 34 and the screw members 36, 38 for the pair of adjustment blocks and the action / effect of the mounting position adjustment support mechanism 270 The mounting position of the lower cutting edge 20 and the upper cutting edge 22 can be finely adjusted by the synergistic effect with the effect.

In this shearing machine 10, a pair of mounting position adjustment support members 282 are connected to a pair of mounting position adjustment support screws 300 only by screwing or loosening the pair of mounting position adjustment support screw members 300, The operation can be simplified and the fine adjustment of the mounting position of the lower cutting edge 20 and the upper cutting edge 22 can be easily supported since it is possible to simply swing and double move along the axial direction of the member 300. [

In this front end 10, when adjusting (aligning) the mounting positions of the lower cutting edge 20 and the upper cutting edge 22, the upper cutting edge 22 and the lower cutting edge 20, For example, a thin paper or the like is inserted and the upper rotary drum 14 is manually rotated to cut the sheet. Check the condition of the edges of the lower cutting edge 20 and the upper cutting edge 22 from the end face of the blanket at this time. The adjustment of the mounting position of the upper cutting edge 22 by the pair of adjustment blocks 32 and 34 and the adjustment of the mounting position adjustment support mechanism 270 cause the cutting edge 20 of the lower cutting edge 20 The amount of clearance between the edge 21 of the upper cutting edge 22 and the edge 23 of the upper cutting edge 22 is finely adjusted and an actual cutting operation is performed in the optimum cutting state.

The threaded hole 28a of the fixed block 28, the threaded surface 31a of the screw member 30 for the fixed block, the pair of adjustment blocks 32 and 34, The screw holes 37a and 39a of the screw members 36 and 38 for the pair of adjustment blocks, the screw holes 240a of the pair of backlash adjusting blocks 234, The screw surfaces 252 of the backlash adjusting screw member 250, the screw holes 288a of the pair of mounting position adjusting support blocks 282, and the screw surfaces 302 of the pair of mounting position adjusting screw members 300, The threaded hole 12a of the lower rotary drum 12, the threaded hole 14a of the upper rotary drum 14, the threaded surface 31b of the threaded member 30 for the fixed block, The screw surfaces 37b and 39b of the screw members 36 and 38 for the pair of adjustment blocks, the screw surface 254 of the pair of backlash adjusting screw members 250 and the pair of mounting position adjusting screw members 300 are formed on the unarranged surfaces, respectively, Control, but the present invention is formed on the surface Una not limited thereto, electronic (前者), or may be formed in the latter jwana surface.

The present invention provides a shearing machine capable of stably mounting a cutting blade on a pair of rotary drums so that the mounting position of the cutting blade can easily be finely adjusted.

10 shearing machine
12 Lower rotary drum
12b The screw of the lower rotary drum
14 Upper rotary drum
14b Spindle of upper rotating drum
16 lower side groove
16a, 16b Lower groove side
16c, 16d Lower groove bottom surface
18 Upper side groove
18a, 18b upper groove side
18c, 18d, 18e upper groove bottom
20 bottom cutting edge
21 Cutting Edge of Lower Cutting Edge
22 Top cutting edge
23 Cutting edge of upper cutting edge
24 drive mechanism
26 moving mechanism
28 fixed block
28A Block body of fixed block
28a Spacer of fixed block
29 Spherical back surface of fixed block
30 Screw member for fixing block
31 Axial body of screw member for fixed block
31a, 31b The screw surfaces of the screw members for the fixed block
31c Screw non-forming portion of screw member for fixed block
31d An engaging groove of a screw member for a fixed block
32, 34 A pair of adjustment blocks
32A, 34A A block body of a pair of adjustment blocks
33, 35 Spherical back surface of a pair of adjustment blocks
32a, 34a A pair of adjustment blocks
32b, 32a, 32b, 32a, 32b,
36, 38 A pair of screw members for the adjustment block
37, 39 A pair of screw members for adjusting blocks
37a, 37b, 39a, 39b A pair of screws
40 brackets
42 Fixed stand
44 operation unit
46 Displacement means
48A, 48B, 48C fixed base
50A, 50B, 50C The movable base
52 Axial section
54 stop screw member
56a, 56b, 56c, 56d,
58a, 58b, 58c, 58d,
60a, 60b, 60c, 60d, 184, 204 brackets
62, 74 Mounting bolt
64a, 64b, 64c, 64d,
66A, 66B support
68A, 68B support base
69, 132, 140, 156, 167 fixing bolts
70A, 70B housing
71, 72, 73, 96, 97 Vertical frame
75 Horizontal frame
76, 86, 88, 114, 170a, 170b, 180 bearings
78, 120 Oil seal
80 O ring
82, 84, 98, 100 Bearing case
90, 92 Bearing cover
94, 95, 96, 102, 104, 116, 118 precision lock nuts
110 coupling portion
112 Circular axis (main axis)
122 serrations
124, 126,
128, 130, 136, 138, 152 helical gears
134, 142, 158 Friction type fastener
150 driven gear portion
154 reinforcing member
160 Manual operating mechanism
162 outer case
164 Inner case
164a, 164b positioning balls
166 flange portion
168 Handle shaft
172 Handle
174 Clutch Shaft
176 Relay gear
178 Support shaft
182 Limit switch
182a operation unit
186 Long hole
188 Locating pin
190 Index plunger
192 knob
194 Nose
200 Rotary drum origin sensor
202 proximity switch
206 sensor dog
208 fixing screw member
208a fastening groove of the fixing screw member
209 Screws for fixing screws
210, 212, 214, and 216 inclined surfaces
220 backlash adjustment mechanism
222 Connecting shaft part of backlash adjustment mechanism
224 fixture
226 annular recess
The contact surface of the annular recess 226a
226b inner circumferential surface of the annular concave portion
228 Insertion hole
230 convex portion
A pair of contact blocks of the 232 backlash adjustment mechanism
232A block body of a pair of contact blocks
236 Fitting surface of a pair of contact blocks
238 Spherical back surface of a pair of contact blocks
234 A pair of backlash adjustment blocks
234A Block body of a pair of backlash adjustment blocks
240 A swelling portion of a pair of backlash adjustment blocks
240a A pair of backlash adjusting blocks
242 Spherical back surface of a pair of backlash adjustment blocks
250 backlash adjustment screw member
250A Axial body of backlash adjustment screw member
252, 254 Screw Surface of Backlash Adjusting Screw Member
256 Retraction groove of adjustment screw for backlash
258 Screw non-forming portion of backlash adjusting screw member
260 Spool of adjusting gear (helical gear)
270 Mounting position adjustment support mechanism
272 Mounting position Adjustment supporting mechanism
274 Fixtures
276 An annular recess of the mounting position adjusting support mechanism
The contact surface of the annular recess 276a
276b inner circumferential surface of the annular recess
277 Convex portion
278 Insertion hole
280 A pair of contact blocks
280A A block body of a pair of contact blocks
282 A pair of mounting position adjustment support blocks
282A A block body of a pair of mounting position adjustment support blocks
284 Fitting faces of a pair of contact blocks
286 Spherical back surface of a pair of contact blocks
288 A swelling portion of a pair of mounting position adjustment support blocks
288a Spacer of a pair of mounting position adjustment supporting blocks
290 Pitch rear face of a pair of mounting position adjustment support blocks
300 One pair of mounting position adjustment support screw members
300A A pair of mounting position adjustment supporting screw members
302, 304 A pair of mounting position adjustment supporting screws
306 A pair of mounting position adjustment support screw member engaging groove
308 A pair of mounting position adjustment screws A screw surface non-
310 Spacer of reinforcement member
M servo motor
γ twist angle (SHARING angle)
? 1,? 2 intersection angle
θ3, θ4, θ6, θ7 inclination angles
θ5 retraction angle
θd1, θd2 Edge angle of the lower cutting edge
θu1, θe2 Edge angle of the upper cutting edge

Claims

A pair of rotary drums installed so as to be able to rotate so as to sandwich the object to be cut and conveyed;
A groove formed on an outer circumferential surface of the rotary drum to extend in an axial direction of the rotary drum;
One cutting blade detachably disposed in the groove portion of one rotary drum;
Another cutting blade detachably disposed in the groove portion of the other rotary drum;
A fixed block having a spherical rear surface (sloped surface) for fixing the one cutting edge to the groove portion of the one rotary drum;
The mounting position of the other cutting edge is adjusted so that the material to be cut is inserted and cut at a cutting edge of the one cutting edge and a cutting edge of the other cutting edge, A pair of adjustment blocks each having a spherical surface for holding a blade from one main surface side and the other main surface side of the other cutting blade and fixing the blade to the groove portion of the other rotary drum;
A screw member for a fixing block, one end of which is screwed to the fixed block and the other end of which is screwed to the one rotary drum; And
A pair of screw members for the adjustment block, one end of which is screwed to the pair of adjustment blocks and the other end of which is screwed to the other rotary drum;
Lt; / RTI >
The fixing block can be reciprocated in the axial direction of the screw member for the fixed block so that the one cutting blade can be pressed to the inner surface of the groove portion of the rotary drum through the spherical surface of the fixed block And,
The pair of adjustment blocks can be reciprocated in the axial direction of the screw members for the pair of adjustment blocks, so that one main surface of the other cutting blade and the other main surface Which makes it possible to apply a pressing force.

The method according to claim 1,
Wherein the screw member for the fixed block and the screw member for the pair of adjustment blocks each have a shaft main body, an axial end main body provided on one axial end side and the other end side of the shaft main body, A screw portion formed on at least one end surface of one axial end surface and another axial end surface of the shaft main body and formed with an engagement portion of a rotary tool capable of rotating the shaft portion main body Grooves,
The fixed block has a threaded surface that is screwed with a threaded surface on one end side in the axial direction of the fixed block thread member, and the one rotating drum has a threaded portion on the other end side in the axial direction of the fixed block threaded member Having a thread surface that is threadably engaged with the slope,
Wherein the pair of adjustment blocks has a threaded surface that is threadably engaged with a threaded surface on one axial end side of the pair of adjustment block screw members, And a threaded surface that is screwed with the threaded surface on the other end side in the axial direction of the threaded member,
Wherein the fixed block and the pair of adjustment blocks are engaged with the fixed block and the pair of adjustment block screw members by rotating the shaft body with the rotary tool engaged with the engagement groove, Wherein the fixed block and the pair of adjustment blocks are rotatably supported by the fixed block member and the fixed block member by rotating the shaft body in a direction opposite to the direction in which the shaft body is rotated in the axial direction, (Shear) in the axial direction of a pair of screw members for the adjustment block.

3. The method of claim 2,
Wherein a length of the cutting edge in the width direction is L1, a depth of the groove portion is L2, a length L3 of the screw hole of the fixed block and the pair of adjustment blocks is L3, The length of the screw hole of the pair of rotary drums being screwed with the screw surface on one end side in the axial direction of the screw member is L4 and the length of the screw hole of the fixed block screw member and the entire The length L5 is L6, the length in the axial direction of the screw surface on one end side in the axial direction of the shaft body that is screwed with the screw surface of the fixed block and the pair of adjustment blocks is L6, And the length in the axial direction of the other axial end of the shaft body, which is screwed with the screw surface of the rotary drum, is L7,
L1>L2>L5> L3, and further satisfies L4 or L5> L6 or L7.

4. The method according to any one of claims 1 to 3,
The shearing machine comprises:
A driving mechanism provided at one side of the rotating shaft of the one rotary drum in the axial direction, for applying rotational driving force to the one rotary drum;
A rotary drum disposed on the other side in the axial direction of the rotary shaft of the one rotary drum and adapted to be synchronized with the other rotary drum in the reverse direction at a peripheral speed corresponding to the conveying speed of the conveyed object to be cut Synchronous) mechanism, and
A mounting position adjusting support mechanism incorporated in the follower mechanism and supporting adjustment of mounting positions of the one cutting edge and the other cutting edge;
Further comprising:
The drive mechanism includes:
A driving source for starting the rotational driving force;
A driving gear connected to an output shaft of the driving source via a coupling portion and fixed to one side of an axis of the rotary shaft of the one rotary drum; And
And the other drive gear fixed to the other side in the axial direction of the rotary shaft of the one rotary drum,
Wherein the follower mechanism comprises:
A driven gear fixed to the other side in the axial direction of the rotary shaft of the other rotary drum and engaged with the other drive gear;
A reinforcing member which is provided at a portion for fixing the driven gear to the other side in the axial direction of the rotary shaft of the other rotary drum and reinforces the periphery of the shaft hole of the driven gear;
A connecting shaft portion which is inserted into the driven gear and the reinforcing member to connect the driven gear and the reinforcing member,
And an annular concave portion extending from one axial end of the reinforcing member to an intermediate portion in the axial direction,
The mounting position adjustment support mechanism includes:
A fitting surface which is arranged opposite to the connecting shaft portion in the radial direction and whose cross section is fitted in a part of the peripheral surface of the connecting shaft portion in an arcuate shape, A pair of contact blocks;
A pair of mounting position adjustment support blocks inserted between the inner circumferential surface of the annular recess and the sphere rear surface of the pair of contact blocks and having a sphere rear surface contacting the sphere rear surface of the pair of contact blocks; And
And a pair of mounting position adjusting support screw members, one end of which is screwed to the pair of mounting position adjusting support blocks and the other end of which is screwed to the reinforcing member,
Wherein the pair of mounting position adjustment supporting blocks are reciprocally movable in the axial direction of the pair of mounting position adjusting support screw members, And presses the shaft portion in the rotating direction of the driven gear.

5. The method of claim 4,
The pair of mounting position adjustment supporting screw members are provided on the shaft main body, one end side and the other end side in the axial direction of the shaft main body, and are formed in opposite directions with the intermediate portion in the axial direction of the shaft main body as a boundary And an engaging groove formed on at least one end face of one end surface and another end surface in the axial direction of the shaft main body and capable of rotating the shaft main body,
Wherein the mounting position adjustment supporting screw has a threaded surface that is screwed with a threaded surface on one axial end side of the mounting position adjustment supporting screw member, And has a thread surface that is screwed to the thread side of the short side,
The pair of mounting position adjustment support members are swung (axially) in the axial direction of the pair of mounting position adjustment support screw members by engaging the rotary tool with the engagement grooves to axially rotate the shaft body, Wherein the pair of mounting position adjustment support blocks is rotated (retracted) in the axial direction of the mounting position adjustment supporting screw member by rotating the shaft body in a direction opposite to the direction in which the shaft body is rotated.