JP2005179007A - Mark tape cutting feeder - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To avoid the event that an insertion failure occurs between sheets due to the weak resilience of a V-shaped tape piece by pushing and crushing only a central portion of a tape, when folded, to secure sufficient resilience of the V-shaped tape piece. <P>SOLUTION: A folding driving roller 10 is a single roller having a width (an axial length) greater than that of the tape 2. Each of an insertion side thrust roller and a discharge side thrust roller is a single roller having a width for pressing only the central portion against the folding driving roller so that the insertion side thrust roller 11 and the discharge side thrust roller 15 thust only the central portion of the tape in the direction of its width against the folding driving roller. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention cuts the tape at the cutting part, folds it into a V shape at the bent part, holds the half-folded state, makes the standby part stand by, and releases the folded state when the sheet is fed The present invention relates to a mark tape cutting and feeding device that causes a sheet to collide with a V-shaped tape piece and inserts the V-shaped tape piece as a mark between the sheets as the sheets are stacked.

  As such a mark tape cutting and feeding device, there is one described in Patent Document 1 (Japanese Patent Publication No. 6-84224). In this conventional example, the tape cut at the cutting portion is inserted between the bending guide plates facing each other between the bending drive roller and the insertion-side pressing roller at the bending portion, and then the bending drive. The sheet is sandwiched between the roller and the discharge-side pressing roller and discharged from between the bending guide plates, so that it is folded in half into a V shape. The bending drive roller, the insertion-side pressing roller and the discharge-side pressing roller 3 which follow this are folded. Each of the types of rollers had a triple roller structure in which three flanges were combined at intervals in the axial direction.

  In such a structure, the tape is folded in half into a V shape while crushing the tape, the central portion, and the two locations on both sides of the tape, so that there are three folding folds as shown in FIG. The crushing portion 50 is formed (the crushing area is large). For this reason, the restoring elastic force of the folded V-shaped tape piece is weak, and when the sheet is made to collide with the V-shaped tape piece opened using the restoring elastic force, the V-shaped tape piece is Is not fully open, and there is a problem in that insertion leakage occurs between sheets.

  Each of the three types of rollers has a knurled triple roller structure with three metal ridges engraved with knurls on the outer peripheral surface, and feeds the tape while pressing the tape between these knurl surfaces. For this reason, the knurling was easily worn and the life of the roller was short.

Furthermore, since a lever that is opened and closed by an electromagnet is used as the tape piece opening / closing mechanism for holding the V-shaped tape piece in a folded state and then releasing it, a space for opening and closing the lever is used. In addition, there is a problem that the time required for the opening / closing operation is long.
Japanese Patent Publication No. 6-84224

  The object of the present invention is to solve the conventional problems as described above, that is, first, by limiting the crushing when the tape is folded in two to the central portion of the tape, An object of the present invention is to ensure a sufficient restoring elastic force and to avoid a situation in which an insertion leakage between sheets occurs because the restoring elastic force is weak.

  Secondly, the wear of the bending drive roller, the insertion side pressing roller and the discharge side pressing roller driven by the bending drive roller is reduced, and the life of these rollers is extended.

  Thirdly, the structure of the tape piece opening / closing mechanism is simplified to reduce the space required for the mechanism and to increase the speed of the operation.

The present invention cuts the tape at the cutting portion and inserts it between the bending guide plates facing each other between the bending drive roller and the insertion-side pressing roller at the bending portion, and then the bending drive roller and The paper is sandwiched between the discharge-side pressing rollers and discharged from between the bending guide plates to be folded in half into a V shape, and the half-folded state is held by the tape piece opening / closing mechanism, waiting in the standby section. A mark tape cutting and feeding device for causing a sheet to collide with a V-shaped tape piece released in a folded state and inserting the V-shaped tape piece as a mark between sheets as the sheets are stacked, and achieves the first problem. Therefore, the following configuration is adopted.
That is, the bending drive roller is a single roller having a width (length in the axial direction) larger than the width of the tape, and the insertion-side pressing roller and the discharge-side pressing roller are the width of the tape with respect to the bending drive roller. Each of the insertion-side pressing roller and the discharge-side pressing roller is a single roller having a width that presses only the central portion of the insertion-side pressing roller and the discharging-side pressing roller so as to press only the central portion in the direction. Features.

  In order to achieve the second problem, the bending drive roller is a metal roller having a knurled outer peripheral surface, and the insertion-side pressing roller and the discharge-side pressing roller are hard rubber rollers.

  In order to achieve the third problem, the V-shaped tape piece is held in a closed state after being folded in half, and then the tape piece opening / closing mechanism for releasing the V-shaped tape piece is folded in half when the plunger is extended. It is comprised only with the electromagnet which hold | maintains and releases a half-folded state at the time of a contraction of a plunger.

  Also, a window hole is formed in the standby guide plate that guides the V-shaped tape piece fed between the bending drive roller and the discharge-side pressing roller at the standby portion, and the V-shaped tape piece is inserted into the window hole. A sensor is provided for detection.

  According to the present invention, the bending drive roller is a single roller having a width larger than the width of the tape, whereas the insertion-side pressing roller and the discharge-side pressing roller are arranged at the center of the bending drive roller. Since it is a single roller with a width that presses against only the V-shaped tape piece, a double-folded bending ridge is formed by a crushing portion at one central portion, and the restoring elastic force of the V-shaped tape piece is increased. Since it can be secured sufficiently, it is possible to avoid a situation in which insertion leakage between the sheets has occurred because the restoring elastic force is weak.

  The bending drive roller is a metal roller with a knurled outer peripheral surface, whereas the insertion-side pressure roller and discharge-side pressure roller are hard rubber rollers. Can be achieved.

  The tape piece opening / closing mechanism that holds the V-shaped tape piece in a folded state and then releases it is an electromagnet that opens and closes directly by the expansion and contraction of the plunger, so the structure is simpler than before. The space required for the operation can be reduced and the operation speed can be increased.

  Whether or not the V-shaped tape piece is present in the standby portion is detected by a sensor through a window hole formed in the standby guide plate, so that the detection can be easily performed.

  Next, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 2 shows the overall configuration of the mark tape cutting and feeding device of the present embodiment in which the cover of the main body case 1 is removed and the inside is exposed.
The wound tape 2 is detachably supported by a tape reel 3 mounted on the upper outer side of the main body case 1. The tape 2 drawn out from the tape reel 3 is guided by the guide roller 4 provided inside the tape inlet 1a on the front surface of the main body case 1 and enters the main body case 1, and enters the inlet side drive roller 5 and the inlet side pressing roller ( By being rotated by the driven roller 6), the rotation passes through the cutter 7 of the cutting portion a, and further passes between the guide plates 8a and 8b of the identification punching portion b obliquely downward and is sent to the bent portion c.

  In the cutting part a, the cutter 7 is driven by the cutting electromagnet 7a, and the tape 2 is cut.

  In the identification punching section b, punching for identification is performed on the tape 2 by driving the punching electromagnet 9. Note that identification may be performed by a stamp instead of punching.

  The tape 2 is sandwiched between the bending drive roller 10 and the insertion-side pressing roller (driven roller) 11 at the bent portion c, and is sent between the upper and lower bent guide plates 12 and 13 by these rotations. As shown in FIG. 3, it is guided obliquely rearward by these bending guide plates 12 and 13, and abuts against a movable stopper 14 disposed so as to be position-adjustable therebetween. Thereafter, the tape 2 continues to be fed by the bending drive roller 10 and the insertion-side pressing roller 11, so that it bends at the open ends between the bending guide plates 12 and 13, and the bent portion Is sandwiched between the bending drive roller 10 and the discharge-side pressing roller 15 and conveyed obliquely forward therewith, the tape 2 is folded in two and fed to the standby portion d.

  As shown in FIG. 3, the bending drive roller 10 is a single metal roller having a width (length in the axial direction) larger than the width of the tape 2, and a knurl is formed on the outer peripheral surface. On the other hand, the insertion-side pressing roller 11 and the discharge-side pressing roller 15 are simply made of a hard rubber having a width (for example, ether urethane rubber having a hardness of 90) that presses against the bending drive roller 10 only at the center thereof. One roller.

  Accordingly, the V-shaped tape piece 2a obtained by cutting the tape 2 with the cutter 7 and then folding it in half as described above has a double-folded fold as shown in FIGS. Since it is formed only by the crushed portion 50, its elastic restoring force is strong.

  Further, since the insertion side pressing roller 11 and the discharge side pressing roller 15 are made of hard rubber, the wear of the rollers 11 and 15 and the bending drive roller 10 is small. Furthermore, since commercially available products are used for the bearings of the insertion-side pressing roller 11 and the discharge-side pressing roller 15, the replacement is easy.

  The V-shaped tape piece 2a, which is conveyed to the standby part d while being folded in half by the bending drive roller 10 and the discharge-side pressing roller 15, as described above, passes between a pair of front and rear standby guide plates 16 and 17. It passes through to the tape outlet 1b formed at the front bottom of the main body case 1. At this time, the tape piece opening / closing electromagnet 18, which is a tape piece opening / closing mechanism disposed in the standby part d, is demagnetized, and its plunger 19 is expanded by the spring force of the spring 20, and is fixed to the tip of the plunger 19. The tape pressing piece 21 is in the forward operating position shown in FIG. Therefore, the V-shaped tape piece 2a separated from the standby guide plate 17 on the rear side is restricted by the tape pressing piece 21 from opening due to its restoring elastic force, and maintains the state shown in FIG. That is, the V-shaped tape piece 2 a is held in a bent state by being sandwiched between the tape pressing piece 21 and the extension plate 16 a of the front standby guide plate 16.

  As shown in FIG. 4, a window hole 22 is formed in the front standby guide plate 16 and a micro sensor is used as a sensor for detecting the V-shaped tape piece 2a as shown in FIG. A switch 23 is installed. The filler 23a of the microswitch 23 is in contact with the V-shaped tape piece 2a through the window hole 22 to detect that the V-shaped tape piece 2a is present in the standby portion d. The filler 23a also functions as a tape press for stably holding the V-shaped tape piece 2a on the standby portion d by contacting the V-shaped tape piece 2a. In place of the microswitch 23, another sensor such as a photoelectric sensor may be used.

  When the V-shaped tape piece 2a is detected by the microswitch 23, the tape piece opening / closing electromagnet 18 is excited on the condition, and when the plunger 19 contracts against the spring 20, the tape presser as shown in FIG. When the piece 21 is retracted along the guide piece 24, the V-shaped tape piece 2 a is released from the bent holding state, is opened by its restoring elastic force, and hangs down from the extension plate 16 a of the standby guide plate 16.

  When a sheet (not shown) is fed toward the V-shaped tape piece 2a in such a state and collides with the V-shaped tape piece 2a, the V-shaped tape piece 2a is sent to the sheet stacking portion together with the sheet and inserted between the sheets. .

  In FIG. 2, reference numeral 25 is a tape feed motor for rotating the drive rollers 5 and 10, 26 is a control board, 27 is a one-cycle cam that rotates simultaneously with the drive rollers 5 and 10, and 28 is turned on and off by its rotation. This is a one-cycle switch (micro switch) that detects the one-cycle operation of the mark tape cutting and feeding device.

The following can be further added to the configuration as described above.
If a charging unit is provided in the bending portion c and the tape inserted between the bending guide plates 12 and 13 is charged, the sheet sent toward the V-shaped tape piece 2a is also V-shaped using static electricity. Since the tape piece 2a can be adhered, the V-shaped tape piece 2a can be reliably fed to the sheet stacking portion together with the sheet. Further, a charger for charging the sheet itself may be installed immediately before the sheet collides with the V-shaped tape piece 2a. Furthermore, in the standby part d, it is also possible to promote the restoration of the V-shaped tape piece 2a by injecting air from the air injection nozzle to the V-shaped tape piece 2a.

It is a perspective view of the V-shaped tape piece by the conventional mark tape cutting | disconnection feeder. BRIEF DESCRIPTION OF THE DRAWINGS It is a side view which shows the whole structure of the mark tape cutting | disconnection feeder of the Example of this invention, and removes and shows the cover of a main body case. It is a perspective view of the bent part and a standby part, and is a state when holding the V-shaped tape piece in a bent state. It is a perspective view of a standby part when there is no V-shaped tape piece. It is a perspective view of a bending part and a standby part, and is a state when releasing a V-shaped tape piece from a bending holding state. It is a perspective view of the V-shaped tape piece by the mark tape cutting | feeding feeder of a present Example. FIG.

Explanation of symbols

a cutting part b identifying punching part c bending part d standby part 1 main body case 1a tape inlet 1b tape outlet 2 tape 2a V-shaped tape piece 3 tape reel 4 guide roller 5 inlet side drive roller 6 inlet side pressing roller 7 cutter 7a cutting Electromagnets 8a and 8b Guide plate 9 Punching electromagnet 10 Bending drive roller 11 Insertion side pressing rollers 12 and 13 Bending guide plate 14 Movable stopper 15 Discharge side pressing rollers 16 and 17 Standby guide plate 16a Extension plate 18 Opening and closing of tape piece Electromagnet 19 Plunger 20 Spring 21 Tape holding piece 22 Window hole 23 Micro switch 23a Filler 24 Guide piece 25 Tape feed motor 26 Control board 27 One cycle cam 28 One cycle switch

Claims (4)

  After the tape is cut at the cutting portion and inserted between the bending guide plates facing each other between the bending drive roller and the insertion-side pressing roller at the bending portion, the bending drive roller and the discharge-side pressing roller Is folded in half into a V shape by holding it between the folding guide plates, holding the folded state with a tape piece opening / closing mechanism and waiting in the standby section, and folding the folded state with this tape piece opening / closing mechanism. In a mark tape cutting and feeding device that causes a sheet to collide with a released V-shaped tape piece and inserts the V-shaped tape piece as a mark between sheets as the sheets are stacked, the bending drive roller is set to be larger than the width of the tape. A single roller having a large width, and the insertion-side pressing roller and the discharge-side pressing roller press only the central portion in the width direction of the tape against the bending drive roller. Each of these insertion side pressing roller and the discharge-side pressure roller, mark tape cutting infeed device, characterized in that a single roller width that presses only in its central portion with respect to the drive roller for the bent.   2. The mark tape cutting and feeding device according to claim 1, wherein the bending drive roller is a metal roller having a knurled outer peripheral surface, and the insertion-side pressing roller and the discharge-side pressing roller are hard rubber rollers. .   3. The mark tape according to claim 1, wherein the tape piece opening / closing mechanism is an electromagnet that holds the V-shaped tape piece in a folded state when the plunger is extended and releases the folded state when the plunger is contracted. Cutting feeder.   A window hole is formed in the standby guide plate that guides the V-shaped tape piece sent between the bending drive roller and the discharge-side pressing roller at the standby portion, and the V-shaped tape piece is detected in this window hole. The mark tape cutting and feeding device according to claim 1, 2 or 3, further comprising a sensor.

Images