JP5832232B2 - Slitter blade movement adjustment mechanism - Google Patents

Description

  The present invention relates to a slitter blade movement adjusting mechanism that slits a workpiece with a predetermined number of slitter blades.

  2. Description of the Related Art In recent years, a slitter device that performs slitter cutting on a workpiece is used in various fields depending on the type of the workpiece. The same applies to any field, but the slitter blade can be moved on the shaft axis using the chuck arm when the slit cutting position needs to be changed and adjusted. It is desirable to be able to move.

  Conventionally, there is an automatic blade assembly device described in Patent Document 1 as a slitter device. The automatic blade assembly device of Patent Document 1 is such that the round blade and the spacer are exchanged with the upper and lower arbors, the round blade and the spacer are held on the moving shaft, and the round blade and the like are moved while being pressed by the supply pusher portion. By inserting and removing from the shaft, the cross-sectional shape of the moving shaft is a substantially H-shaped magazine shaft, so that the inclination and smoothness of round blades and the like in movement during sliding compared to the cylindrical shaft is improved. It is disclosed to ensure.

  Therefore, the movement of the slitter on the movement axis of the round blade will be described with reference to FIGS. 6 is a conceptual diagram of an RFID label manufacturing apparatus provided with a conventional slitter device, FIG. 7 is an explanatory view of a slitter lower blade in the slitter device of FIG. 6, and FIG. 8 is a state of holding the slitter lower blade of FIG. FIG. 9 is an explanatory diagram of the moving state of the slitter lower blade of FIG.

  6A, the RFID label manufacturing apparatus 101 sequentially conveys the inlet sheets 111 in which, for example, six rows of inlets 112 as shown in FIG. 6B are formed at a predetermined interval from a continuous inlet roll 102. The slit sheet is formed for each row as shown in FIG. 6C by the slitter device composed of the upper blade 103 and the lower blade 104 with respect to the inlet sheet 111, and is separated for each row. In the inlet sheets 111-1 to 111-6 in each column, the reading inspection unit 105 performs a reading inspection on the inlets 112 in all six columns in units of rows, and is distributed by the distribution roller 107 so that only the non-defective products are supplied to the supply rollers 108 and 108. An RFID label of an inlet that is separated into pieces by being stuck on the mount 110 via the transfer roller 109 is manufactured.

  As shown in FIG. 7A, the slit cutting device includes lower blades 104 (104-1 to 104-5) corresponding to the peripheral blades of the five upper blades 103. A groove 104A is formed on the circumferential side portion of each lower blade 104, and a notch escape portion 104D is formed at the circumferential end portion of each lower blade 104 to avoid contact with the contact notch portion and the tip of the upper blade. Then, a slit cut is formed in the inlet sheet 111 by bringing the contact notch portion and the upper blade 103 into contact with each other as shown in the figure. As shown in FIG. 7B, each lower blade 104 is formed with a shaft hole 104B through which the shaft shaft 121 is passed, and is rotated by the upper blade 103 as it rotates.

  As shown in FIG. 7C, the shaft shaft 121 is provided with elastic movable bodies 121A to 121D, for example, at four locations on the circumferential side, and is movable on the outer circumferential side by air or the like as shown in FIG. 7D. As a result, each lower blade 104 is pressed against the inner peripheral surface 104C of each shaft hole 104B and fixedly held. In this case, as shown in FIG. 7C, the diameter R2 of the shaft hole 104B of the lower blade 104 is R2 = R1 + L (55 μm to 60 μm) with respect to the outer peripheral diameter R1 of the shaft 121. This L becomes play when the lower blade 104 slides on the shaft 121.

  Here, as the one for moving the lower blade 104 in the axial direction of the shaft shaft 121, a moving chuck portion 131 as shown in FIG. 8A is provided movably in the axial direction by a moving shaft 132 such as a ball screw. . The moving shaft 132 is arranged in the same axial direction as the shaft 121 shown in FIG.

  The moving chuck unit 131 includes a movable holding arm 141, an air cylinder 143, an arm movable base 144, and a detection unit 145. The movable holding arm 141 has an arc-shaped holding surface that is substantially the same as the outer peripheral arc of the lower blade 104, and a similar arc-shaped fitting convex portion 142 is formed at the center. A cylinder shaft is formed on the opposite side of the fitting projection 142 of the movable holding arm 141 and is attached to the air cylinder 143. The air cylinder 143 is provided on the arm movable base 144, and is screwed with the moving shaft 132, for example, and the moving chuck portion 131 moves on the axis by the rotation of the moving shaft 132. The detection unit 145 is for detecting the lower blade 104 to be held when the movable chuck unit 131 moves.

  Then, the movable holding arm 141 in the moving chuck portion 131 is projected to the lower blade 104 side by the air cylinder 143, so that the movable holding arm 141 is moved as shown in FIGS. 8B and 9B. The holding surface comes into contact with the outer peripheral side surface of the lower blade 104 to be held, and at this time, the fitting convex portion 142 is fitted and held in the fitting groove 104A formed on the outer peripheral side surface of the lower blade 104. 9 (A), the lower blade 104 (referred to as 104-5) to be held is moved in the axial direction of the shaft shaft 121.

JP 2003-000000 A

  However, the holding of the lower blade 104 (104-5) by the moving chuck portion 131 is in a so-called cantilever state, and the movement L is opposite to the moving direction as shown in FIG. It becomes in a state tilted in the direction. At this time, the edge K on the moving direction side of the inner peripheral surface 104C on the side held by the moving chuck portion 131 of the lower blade 104 (104-5) hits the shaft shaft 121 and stops and moves. There is a problem that it cannot be performed smoothly. This causes the same phenomenon even if the shaft 121 is a substantially H-shaped two-point support as described in Patent Document 1.

  Accordingly, the present invention has been made in view of the above problems, and a slitter blade movement that prevents the occurrence of a movement stop state by smoothly performing a movement for adjusting the width of the slitter blade when forming a slit cut in a workpiece. An object is to provide an adjustment mechanism.

  In order to solve the above-mentioned problem, in the invention of claim 1, the position of the slitter blade when forming a corresponding number of slit cuts on the object to be cut with a donut-shaped slitter blade provided on the shaft axis is determined. A slitter blade movement adjusting mechanism that moves in the axial direction on a shaft axis to change and adjust a slit cut forming position of the object to be cut. A movable holding arm for holding and holding and a movable means for projecting and retracting the movable holding arm toward the slitter blade to be held are provided, and the slitter blade to be held is sucked and held by the suction means by projecting the movable holding arm. The movable chuck is made to move in the axial direction of the shaft axis by bringing the inner peripheral surface of the slitter blade into contact with the shaft axis at a position opposite to the holding position by being pulled in It configured to have a.

  According to the present invention, the movable holding arm is moved to the side of the slitter blade to be held in the moving chuck portion in order to change and adjust the slit cut forming position of the object to be cut by moving the position of the slitter blade on the shaft axis. The slitter blade is pulled by the suction means and then pulled in, and then retracted so that the inner peripheral surface of the slitter blade is brought into contact with the cantilever position at a position opposed to the shaft axis and moved in the axial direction of the shaft axis. By adopting a configuration, when the slitter blade is moved in a cantilevered manner by causing the rear edge portion in the moving direction of the inner peripheral surface to be in contact with the shaft axis due to the inclination of the slitter blade during movement. The resulting edge is prevented from being caught and the movement can be made smooth.

It is a partial block diagram of the slitter blade movement adjustment mechanism which concerns on this invention. It is explanatory drawing of the holding state of the slitter lower blade of FIG. It is explanatory drawing of the movement state which changes and adjusts the slit cut formation position of the slitter lower blade of FIG. It is another structure explanatory drawing of the fitting means in the slitter blade movement adjustment mechanism which concerns on this invention. It is another structure explanatory drawing of the adsorption | suction means in the slitter blade movement adjustment mechanism which concerns on this invention. It is a conceptual diagram of the RFID label manufacturing apparatus provided with the conventional slitter. It is explanatory drawing of the slitter lower blade in the slitter of FIG. It is explanatory drawing of the holding state of the slitter lower blade of FIG. It is explanatory drawing of the movement state of the slitter lower blade of FIG.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Although this embodiment is shown as a case where it is applied to the RFID label manufacturing apparatus shown in FIG. 6, it can be applied to various fields according to the type of other objects to be cut. Further, the inlet sheet 111 shown in FIG. 6 is a workpiece, and the upper blade 103 and the lower blade 104 (41 in this embodiment) constitute a slitter blade. In this embodiment, the slitter blade to be moved is described as only the lower blade (41). However, the upper blade 103 may be used, or both the upper blade 103 and the lower blade (41) may be used. Good. It should be noted that the illustration in the present embodiment is shown ignoring actual dimensions for ease of explanation.

  FIG. 1 is a partial configuration diagram of a slitter blade movement adjusting mechanism according to the present invention. Here, the slitter blade movement adjusting mechanism according to the present invention has the same basic configuration as that shown in FIGS. 6 to 8, and the slitter blade composed of the upper blade and the lower blade is rotatable and movable in the axial direction. The shaft shaft (the shaft shaft that allows the upper blade to freely rotate and move in the axial direction is also the same and is not shown in FIG. 6), a moving chuck portion, and a control portion (not shown) that drives and controls them. Is done.

  FIG. 1A shows the moving chuck portion 11 that constitutes a part of the slitter blade movement adjusting mechanism, and corresponds to the moving chuck portion 131 of FIG. The movable chuck portion 11 includes a movable shaft 12 (corresponding to 132 in FIG. 8A), a movable holding arm 21 (corresponding to 141 in FIG. 8A), and an air cylinder 23 (FIG. 8A) as movable means. 143), the arm movable base 24 (corresponding to 144 in FIG. 8A), and the detection unit 25 (corresponding to 145 in FIG. 8). Except for the configuration of the movable holding arm 21, it is the same as FIG.

  As shown in FIG. 1B (a cross-sectional view of the central portion of FIG. 1A), the movable holding arm 21 has two cross-sections L formed of a magnetic material as an adsorbing means on both sides of the arm base 32A. Character-shaped magnetic attracting portions 31A and 31B are provided on the object, and the magnetic attracting portion 31A has a tip abutting portion that abuts on the upper blade formed on the lower blade 41 as shown in FIG. A notch 31C is formed for avoiding breakage by avoiding contact with the edge K. And arm trunk | drum 32B, 32C is provided in the both sides of the said magnetic adsorption | suction part 31A, 31B. In order to obtain such a configuration, for example, it can be formed by bonding with a non-conductive adhesive. The overall shape is such that the holding surface is formed in the same arc shape as the outer peripheral arc of the lower blade (41 in FIG. 2) as shown in FIG. 8A.

  The arm base portion 32A is formed by integrally forming a fitting convex portion 22 as a fitting means with an insulating metal (for example, aluminum). Similarly, the arm body portions 31A and 32B are formed of an insulating metal. In the magnetic attracting portions 31A and 31B, the entire surface of the arm base portion 32A on the side where the fitting convex portion 22 is formed serves as a holding surface, and a coil 33 for magnetizing the rear end portion is provided. Magnetic control at the time of chucking of the magnetic attraction units 31A and 31B is performed by a control unit (not shown).

  Here, FIG. 2 shows an explanatory view of the holding state of the slitter lower blade of FIG. FIG. 2 (A) shows a case where the movable chuck portion 11 holds one of the lower blades 41 supported by the shaft shaft 42, as in FIG. 9 (A). A fitting groove 41 </ b> A for fitting with the fitting convex portion 22 formed on the movable holding arm 21 is formed on the outer peripheral side surface.

  That is, the lower blade 41 is not moved by the four elastic movable bodies (121A to 121D) on the circumferential side of the shaft shaft 42 as shown in FIG. When the 41 is slidable in the axial direction, as shown in FIG. 2A, the air chuck 23 is driven in the moving chuck portion 11 to project the movable holding arm 21 toward the lower blade 41. The fitting convex part 22 of the movable holding arm 21 and the fitting groove 41A on the outer peripheral side surface of the lower blade 41 are fitted. This fitting has the meaning of aligning the movable holding arm 21 and the lower blade 41. At this time, the coil 33 is energized by a control unit (not shown) to magnetize the magnetic attracting part 31 formed of the magnetic material of the movable holding arm 21 and magnetically attract the lower blade 41. At this time, in the lower blade 41, the play L of the shaft shaft 42 occurs on the side opposite to the movable holding arm 21 side, that is, the inner peripheral surface 41C of the lower blade 41 on the movable holding arm 21 side and the shaft shaft 42 abut. It becomes a state.

  Accordingly, as shown in FIG. 2B, the movable holding arm 21 is retracted by driving the air cylinder 23 in the moving chuck portion 11. As a result, the lower blade 41 comes into contact with the inner peripheral surface 41C on the opposite side of the cantilever holding position by the movable holding arm 21 with respect to the shaft axis 42 of the shaft hole 41B. ) Is in a non-contact state by the amount of play L shown in FIG. In this state, the movable chuck portion 11 causes the lower blade 41 to slide on the shaft shaft 42.

  Next, FIG. 3 shows an explanatory diagram of a moving state in which the slit cut forming position of the slitter lower blade of FIG. 2 is changed and adjusted. In the state of FIG. 2 (B), as shown in FIG. 3 (A), when the lower blade 41 is moved on the shaft axis 42 to the left on the drawing, the lower blade 41 is inclined in the direction opposite to the moving direction. Will be done in the state. In this case, since the inner peripheral surface 41C of the lower blade 41 facing the cantilever holding position by the movable holding arm 21 is brought into contact with the shaft shaft 42, the edge K on the rear end side in the movement direction of the inner peripheral surface 41C. Is brought into contact with the shaft 42 so that it can be smoothly moved without being caught.

  FIG. 3 (B) shows a case of moving in the opposite direction to that of FIG. 3 (A). As in FIG. 3 (A), the lower blade 41 moves with the movable holding arm 21 at an inclination during movement. The inner peripheral surface 41C on the opposite side of the cantilever holding position is brought into contact with the shaft shaft 42, and the edge K on the rear end side in the movement direction of the inner peripheral surface 41C is brought into contact with the shaft shaft 42. , To make smooth movement.

  Then, the moving chuck portion 11 moves all the lower blades 41 on the shaft shaft 42 to change and adjust the width position, and then cancels the magnetic attraction, as shown in FIGS. 7B and 7D. As shown, all the lower blades 41 are pressed against the inner peripheral surface 41C of each shaft hole 41B and fixedly held by moving the elastic movable body of the shaft shaft 42 to the outer peripheral side with air or the like.

  In this way, the lower blade 41 is magnetically attracted by the holding surface of the magnetic attracting portion 31 formed of the magnetic body of the movable holding arm 21 that cantilever-holds the lower blade 41, and when the lower blade 41 is moved, The contact portion between the inner peripheral surface 41C and the shaft shaft 42 becomes the inner peripheral surface 41C on the side opposite to the cantilever holding position, and the rear end edge K in the moving direction of the inner peripheral surface 41C due to the inclination of the lower blade 41 during movement. Since the portion becomes a contact portion with the shaft shaft 42, the edge can be prevented from being caught when the lower blade 41 is moved while being cantilevered, and the movement can be made smooth.

  Next, FIG. 4 shows another configuration explanatory diagram of the fitting means in the slitter blade movement adjusting mechanism according to the present invention. In FIG. 1 described above, the case where the fitting convex portion 22 is provided on the movable holding arm 21 as the fitting means is shown, but instead of this, as shown in FIGS. 4A and 4B, the movable holding is performed. Fitting wall portions 22 </ b> A and 22 </ b> B are provided on both sides of the arm 21. In this case, the lower blade 41 does not require the fitting groove 41A.

  That is, as shown in FIG. 4C, the lower blade 41 itself is fitted into the fitting wall portions 22A and 22B and magnetically adsorbed. When the lower blade 41 is adsorbed by the movable holding arm 21 In addition, the holding state can be ensured by positioning as with the fitting convex portion 22. Then, in the movable chuck portion 11, the air cylinder 23 is driven to retract the movable holding arm 21, and the lower blade 41 is slid on the shaft shaft 42.

  Next, FIG. 5 shows another configuration explanatory diagram of the suction means in the slitter blade movement adjusting mechanism according to the present invention. In FIG. 1 described above, the case where the magnetic adsorption portion 31 is provided as the adsorption means on the movable holding arm 21 is shown, but instead of this, as shown in FIGS. A predetermined number of air suction holes 51 are formed on the holding surface, and an air suction portion 52 communicating with the air suction holes 51 is provided, for example, on the air cylinder 23 side. In this case, in order to ensure the holding state by alignment with the lower blade 41, the fitting wall portions 22A, similar to FIGS. 4A and 4B, are provided on both sides of the arm base portion 32 of the movable holding arm 21. 22B is provided. Even in this case, the fitting groove 41A of the lower blade 41 is not required to be formed, but the fitting convex portion 22 and the fitting groove 41A of the lower blade 41 shown in FIG. In addition, it is the same that the notch part 32C is provided in the part corresponding to the edge K of the lower blade 41 of the arm base 32.

  That is, as shown in FIG. 5C, in the movable holding arm 21, the lower blade 41 is fitted by the fitting wall portions 22 </ b> A and 22 </ b> B, and suction is performed by the air suction portion 52. The lower blade 41 is adsorbed by air with a negative pressure. By configuring the attracting means in this way, the same function as that of the magnetic attracting unit 31 can be achieved.

  The slitter blade movement adjusting mechanism of the present invention can be used in a manufacturing apparatus or the like that forms a slit cut in a workpiece.

DESCRIPTION OF SYMBOLS 11,131 Moving chuck part 12,132 Moving shaft 21,141 Movable holding arm 22,142 Fitting convex part 22A, 22B Fitting wall part 23,143 Air cylinder 24,144 Arm movable base 25,145 Detection part 31 Magnetic adsorption Part 31C, 32C Notch 32 Arm base 41, 104 Lower blade 41A, 104A Fitting groove 42, 121 Shaft shaft 51 Air suction hole 52 Air suction part 103 Upper blade

Claims (1)

When forming a number of slit cuts corresponding to the object to be cut with a donut-shaped slitter blade provided in a predetermined number on the shaft, the position of the slitter blade is moved in the axial direction on the shaft to A slitter blade movement adjustment mechanism for changing and adjusting the slit cut formation position,
A movable holding arm that cantilever-holds a part of the outer peripheral side portion of the slitter blade by a suction means, and a movable means that projects and retracts the movable holding arm toward the slitter blade side to be held, The movable holding arm is protruded, and the slitter blade to be held is sucked and held by the suction means and then retracted to bring the inner peripheral surface of the slitter blade into contact with the holding position at a position opposite to the holding position. A slitter blade movement adjusting mechanism having a moving chuck portion that moves in a direction.

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