JPS5939648A - Drive control system for rotor - Google Patents

Abstract

PURPOSE:To feed a fixed quantity of a transported material by providing a brake magnet on a rotary shaft of a rotor such as a feed roller for transporting the transported material, and controlling the magnet to release the stopping of rotation of the rotary shaft and stop the rotation thereof. CONSTITUTION:In case of controlling the rotation of a feed roller 49 of a tape feeder used in a binder, a driving system for the feed roller 49 adapted to feed thermally adhesive tape MT in cooperation with a pinch roller comprises a rotary shaft 50 rotated by a feed motor 60 comprising a reversible motor, and a brake magnet 57 mounted on the intermediate portion of the shaft. The brake magnet 57 is arranged so that a magnet 573 is excited to attract a disc 571 to be adsorbed to a friction plate 572, thereby to stop the rotary shaft 50. From the time when the stopping of rotation of the rotary shaft 50 is released by the brake magnet 57 to the time when the rotation of the shaft is stopped is the drive time for the feed roller 49 so as to feed a fixed quantity of thermally adhesive tape MT.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to, for example, a drive control system for a rotary body in a binding device, which controls the rotation of a feed roller that feeds out a heat-adhesive tape for binding objects to be bound.

[Technical background of the invention and its problems]

Conventionally, tape feeding devices used in binding devices have
By turning on the tape feeding motor, feeding out the tape for a predetermined period of time, and then turning off the motor, a tape of a predetermined length is fed out. However, in this type of device, a zero-cross type 8SR (solid state relay) is used for on-off control of the motor, so the motor actually turns on (off) after issuing the motor on signal (off signal). There is a cycle lag before this happens, and there are also variations in the motor's starting torque. Therefore, since there are variations when the motor starts and stops, there is a problem that the amount of tape fed is not constant.

[Purpose of the invention]

The present invention has been made in view of the above circumstances, and an object thereof is to provide a drive control system for a rotary body that can keep the conveyance amount of a conveyed object constant.

[Summary of the invention]

This invention provides a brake magnet for stopping the rotation of the rotating shaft that transmits the rotation of the driving body to the rotating body, and the time from when the rotation of the rotating shaft is released by the brake magnet until the rotation stops is the driving time of the rotating body. This is how it was done.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to the drawings.

FIGS. 1 and 2 show a binding device using the rotating body drive control system of the present invention.

This bundling device is for bundling a stack of paper sheets, and is roughly divided into a transfer section 1 and a bundling section 2.

In FIG. 1, reference numeral 3 denotes a back-up board that lifts and lowers a group of paper sheets stacked in a predetermined number at - on a stacking device (not shown). The transfer section 1 receives the paper sheets placed on the back-up plate 3 and descends, and transfers them to the bundling section 2.

First, the configuration of the transfer section I will be explained.

In the second figure, 4A and 4B are side frames,
It is erected on a base (not shown). The transfer section 1 includes these both side frames 4A.

4B. That is, a guide rod 6 is attached to the side of the side frame 4A via a bracket (not shown), and a guide rail 7 is attached to the side frame 4B facing the guide rod 6. A bound object transfer unit (hereinafter also simply referred to as a carrier) 8 is movably provided on the guide rail 7 and the guide rod 6. This carrier 8
A guide roller 10 that engages with the guide rail is rotatably attached to one side of the hollow-shaped frame 9, and a clamping roller that clamps the guide rod 6 is mounted on the other side. A first mounting table JJA having a notch is attached to this side bracket 12, and a second and third mounting table JJA having a cutout part is attached to the side bracket 12, and a second and 3 mounting table 13
B and 13C are held by the frame 9 via an intermediate bracket 14. Note that the first mounting table 7J
The gap formed between A and the second platform 1 and the base 13B is wider than the width of the strip material and is located at the position where the strip material is wound by the strip material holding member (not shown). 13
It forms D. In addition, each mounting table 1 of this carrier 8
3A-13c are nested with the back-up plate 3, so that the back-up plate 3 can be lowered to below the mounting tables 131-13C, as shown in FIG. Further, in order to move the carrier 8 along the guide rod 6, a bound object transfer member driving section (hereinafter also simply referred to as a carrier driver) 15 is provided.

In this case, the motor 18 with the drive sprocket J7A attached is attached to a stay (not shown), and the idle sprocket J7B is rotatably attached to the four side frames. l-
An endless chain 20 is stretched between 17 and 17B. A detection piece 21 and an engagement roller 22 are attached to an arbitrary link (not shown) in the middle of this chain via a link holder 23. Also, the notch that fits into this engagement roller 22, ? A transmission member 24 with 4A is attached to said side bracket 12.

The carrier 8 configured in this way is capable of connecting the chain 2 via the engagement rollers 22 and the transmission member 24.
0, and move to the position shown by the solid line in Figure 1 (hereinafter referred to as the carrier home position).
The CRHP receives paper sheets from the backup board 1. And the position indicated by the chain line on the right side shown in Figure 1 (hereinafter referred to as carrier seal position) CH2F
After completing the bundling of the paper sheets via the bundling section 2, the motor 18 is reversed to move the carrier 8 to the position indicated by the chain line on the right side in FIG. 1 (hereinafter referred to as carrier back position) CRBP. Then, one cycle of movement is completed by returning to the carrier home position CRHP.

It should be noted that between the carrier home position CRHP and the carrier back position CRBP, there is a stand 1 provided on the carrier 8. A-1, a bundle removal means (hereinafter also simply referred to as a scraper) that has a shape nested with QC and comes into contact with a group of bundled paper sheets (hereinafter also simply referred to as a bundle) placed on the carrier 8. ))
ze is attached to the base (not shown).

While the carrier 8 is moving from the carrier seal position CR8P to the carrier back position CRBP, the movement of the bundle placed on the carrier is restricted by the scraper 26, and the bundle falls from the carrier 8 and is placed below. The next step (explanation 1''') Af is sent through the chute 21 that is attached to the chute 21. Particularly, if such a bundle removing means 26 is provided, the bundles can be reliably removed with an extremely simple structure. can be excluded from the carrier 8.

Further, the carrier 8 is provided with an auxiliary clamp section 29 that prevents the paper sheets placed on the mounting tables 7.9A to 13C from collapsing during movement.

The auxiliary clamp section 29 is configured to also function as an alignment means for aligning the group of sheets passed from the back-up plate 3 to the carrier 8 in the longitudinal direction. That is, as shown in FIG.
One end of the clamp bracket 30 is attached to the frame 9, and a rod 31 is inserted into the other end of the clamp bracket 30.
This rod 31 has a clamp holder 32 having a substantially U-shaped cross section.
is rotatably supported. This clamp holder 32
A clamp plate 33 is provided at the second illustrated upper part of the clamp plate 33 so as to be rotatable in the vertical direction via a hinge 32A. A first cam follower 35 is attached to the proximal end of the clamp plate 33 via a stud 34, and a curved alignment rod 36 is attached to the free end. Note that when the clamp holder 32 is rotated clockwise, the alignment rod 36 is moved between the second and third mounting tables 13B and 1.
It is located between 3C and does not touch both mounting tables s3B and 1sC. A second cam follower 31 is attached to the second illustrated lower end of the clamp holder 32, and a fixed cam block 38 with which the second cam follower 32 and the first cam follower 35 engage is attached to the side frame. It is attached to 4B. This fixed cam block 38 is a processed molded product of L-shaped channel material.
The second illustrated upper surface portion is configured as a first cam face 38A for vertically moving the clamp plate 33, and the second illustrated side portion is configured as a second cam face 311B for horizontally rotating the clamp holder 32.

Next, the configuration of the binding section 2 will be explained.

This binding part 2 is made of a band-shaped material coated with a heat-melting material on one side, such as a heat-adhesive tape (in FIG. 1, the lower surface is a coating surface CF coated with a heat-melting material).
(Transferred object) A thermal adhesive tape supply unit (hereinafter also simply referred to as a feeder) 40 that supplies MT, and winds the thermal adhesive tape MT supplied from this feeder 4o around a group of paper sheets transported by the carrier 8. A winding unit (hereinafter also simply referred to as a winder) 411 which presses and compresses and holds the paper sheets wound by the winder 41, and a main clamp part 42 that presses and compresses and holds the paper sheets wound by the winder 41, and heat-adhesive tape MT wound around the paper sheets are thermally welded. It consists of a heat bonding section 43. Note that the winding portion 41
is an example of a folding means for folding back one end of a wound strip material.

The feeder 40 has both side frames 4k.

When the carrier 8 moves, it is attached to the approximately central part of the stay 45 that is hung on the stay 4B, and is located between the first mounting table 13 and the second mounting table 13f3. There is. That is, as shown in FIG.
54 feeder brackets 46 are attached, and each feeder bracket 46 is rotatably arranged with a pinch roller holder 47 having one end pivotally supported, and a pinch roller 48 is attached to the free end of this pinch roller holder 47. Rotatably supported. Further, a feed roller (rotating body) 49 is attached via a drive shaft 50 at a position in contact with the pinch roller 48 . A biasing member such as a leaf spring 51 is attached to the base end of the pinch roller holder 47, and the free end of this leaf spring 51 is engaged with the tip of an adjustment screw 52 rotatably attached to the feeder bracket 46. By inserting and removing this adjustment screw 52, the contact pressure of the pinch roller 48 against the feed roller 49 can be finely adjusted. Further, a fixed blade 53A is provided ahead of the feed roller 49 and the pinch roller 48, and the fixed blade 53A is operated by the cutter rotary solenoid 54.
．． A movable blade 53B that reciprocates along 9A is provided. .

In addition, there are heat-bonded Deso MTs on the tips of the double-edged blades 5, 9A, and 53B.
Guide plates 5, 5 and guide rollers 56 are arranged to guide the. As shown in FIGS. 2 and 3, the drive system for the feed roller 49 includes a brake magnet 57 attached to the middle part of the drive shaft 50, an idle gear 58 attached to the other end, and a brake magnet 57 attached to the other end of the drive shaft 50. A feed motor (driver) e equipped with a drive gear 59 that meshes with an idle gear 58.

is a reversible motor, which rotates in reverse after the thermal adhesive tape MT is wound around a group of paper sheets by a winder 41, which will be described later, and is tightened by pulling the wound thermal adhesive tape MT back through the guide roller 56. It has become.

As shown in FIG. 3, the brake magnet 51 rotates together with a rotary shaft 60, and is slidable in the axial direction of the rotary shaft 50 by a disc 571, which is magnetized by a driver (not shown) to rotate the disc 57. By suctioning and adhering to the friction plate 51, the disk 57
．． In other words, the magnet 57 that stops the rotating shaft 50. It is made up of.

The configuration of the winding portion 41 will be explained. First, as shown in FIG. 2, the side frame 4A has a bearing block 6 containing a radial bearing (not shown), etc.
5 is attached to the bearing block 65, and a drive shaft 66 is rotatably inserted and held in this bearing block 65.

On the other hand, a belt-shaped material holding member rotation drive unit (hereinafter also simply referred to as a catch driver) 75 is provided which rotates a belt-shaped material holding member (not shown) together with the drive shaft 66. As shown in FIG. 1, the catch driver 75 includes a first gear 75A that rotates integrally with the idle sprocket 77B, and a second gear 75B that meshes with the first gear 76A. A third gear 75C rotates integrally with the second gear 75B, and a third gear 75C rotates together with the driver shaft 66, and a rotational force is transmitted from the third gear 75C via a timing bell l-75D. 4 gears 75E.

The main clamp portion 42 is as shown in FIG. That is, a clamp bracket (not shown) is attached to the side frame 4A, and two guide plates 101, 101 each having a guide hole 101A are attached to the other end of the clamp bracket via a prop 102. ing. And this guide plate 101
．． For example, two clamp levers 104 are provided to sandwich both the guide plates 101, 101, and both clamp levers 104, 1 are provided with two guide rollers 103 that fit into the guide holes 101.
04 can move along the guide hole 1oIA. Note that both clamp levers 104 and 104 are connected via the shaft 1o5, so they can move as one. Also, both clans 7' lever r 04, 16
' 4 is placed in a layer that does not contact the thermal adhesive tape wound around the paper sheets on the carrier 8 and the clamp plate 33 . And this clamp lever 104, 10
A clamp lever driver 106 is provided for moving the clamp lever 4. This consists of a pairing (not shown) provided in the middle of the clamp bracket, a drive shaft 10g which is rotatably supported by this bearing, and a drive shaft 10g fixed to one end of this drive shaft 108 through a bracket notch x09k. a cam ray (-109) which is secured to the shaft 105, and the drive shaft 1011.
A cam follower lever 110 fixed to the other end and provided with a cam follower 110k, and this cam follower 110
A clamp motor 11 equipped with a cam 111k that is connected to the motor k.
1, and a biasing member (not shown) that brings the cam follower 110k into close contact with the outer peripheral surface of the cam 111, and a cam ray that swings following the rotation of the cam 111; -309, both clamp levers 104,
104 can be moved back and forth along the guide hole 1nZA. Further, both the clamp levers 104,1
04, a stamping device such as a porous rubber stamp (hereinafter also simply referred to as a stamp) 113 is attached via compression coil springs 1131 and 113k.

The heat bonding portion 43 is shaped as shown in Figure J1.

That is, the heat bonding portion bracket 1 is attached to the side frame 4B.
15 is attached, and a guide base 117 is attached to this heat bonding portion bracket 115 via a prop 116. Two pairs of guide rollers 118 are disposed opposite to each other on this guide base 117.
A slide base 119 is held between the two parts 8 so as to be movable back and forth. A heater block 121 is provided on this slide base 119 via a holder 120. Is this heater block J? J is rotatably provided in the holder 120, and the first
It is biased clockwise in the figure and is maintained in the state shown by the solid line via a stopper (not shown). Note that when the slide base 119 moves upward in FIG. 1 and the heater block 121 comes into contact with the heat-adhesive tape wound around the paper sheets on the carrier 8, the heater block 121 is moved against the unillustrated attachment. A guide roller 122 provided at an intermediate portion of the bifurcated slide base 119, which rotates counterclockwise against the biasing force of a biasing member to assume a position indicated by a chain shoulder, and a guide roller 122 provided at one end thereof. a swinging lever 1 which engages the guide roller 122 in a notch thereof and rotatably pivots the other end to the heat bonding bracket 115;
23 and a slider 124A that fits into a long hole provided in the middle of the swing lever 123.
4 and a drive motor 125 that rotates the crank lever 124 form a swinging slider crank mechanism, and the heater block 121 can be reciprocated by operating the drive motor (not shown). There is. As shown in FIG. 1, a tape stopper 126 made of, for example, a spring steel plate is rotatably provided between the two guide plates 101.
A rubber plate 127 to prevent slippage is attached to the surface. This tape stopper 126 is designed to rotate in conjunction with the movement of the heater block 121, and presses and holds the heat-adhesive tape against the sheet group before the heat-adhering by the heater block 121, so that the cutter of the feeder 40 531.5
3Bl prevents the heat-adhesive tape from loosening when it is cut.

FIG. 4 shows the main parts of the electric circuit.

That is, 131 is a control section, which controls the entire system. 132, 133, 134 are drivers, the driver 132 drives the feed motor 60, the driver 133 drives the magnet 57. By exciting the energized disk 57. The driver 134 moves the movable blade 5.9B by energizing the cutter rotary solenoid 54.

Next, in such a configuration, a drive control method for a rotating body according to the present invention will be explained. For example, now the control unit 13
1 determines that the thermal adhesive tape MT has been sent out.

Then, the control unit 131 outputs a drive signal to the driver 132.

As a result, the drivers 13 and 2 cause the feed motor 60 to start rotating. However, at this time, the control section 13
Since the drive signal is output from 2 to the driver Iss in advance, the driver 133 is connected to the magnet 573.
is excited. As a result, the magnet 57. is disk 57. is sucked and adsorbed onto the friction plate 67. As a result, disk 57. is stopped, the rotation 141+s o and the feed roller 4
9 is stopped. After that, the 1 control unit 131 cuts off the supply of the drive signal to the driver 133. Then, magnet 57. is deenergized and disk 57. is the friction plate 57
．． By moving further apart, the rotating shaft 5o and the feed roller 49 are rotated by the feed motor 6o. As a result, the heat adhesive tape MT is transported by the same town of 1-RA 49].Thus, after a predetermined time (T) has elapsed, the control section 1.71 sends a drive signal to the driver 1.93 again. Then, the driver 133 outputs the magnet 57
3, and the disk 57.3 is excited. It is more important to attract
The disk 57 is a friction plate 57. Make sure to absorb it. This causes the rotating shaft 50 to stop +)L and the feed roller.

49 stops. As a result, the conveyance of the thermal adhesive tape MT is stopped, so that the thermal adhesive tape MT is conveyed for a length corresponding to the conveying distance corresponding to the predetermined time T. Thereafter, the control unit 131 cuts off the supply of the drive signal to the driver 132, so that the driver ZSt controls the feed motor 1.
Stop 32.

Further, when the control unit 131 determines to cut the heat-adhesive tape MT, it outputs a drive signal aq to the driver 134 to energize the cutter rotary solenoid 54 and cut the lip 4.
As a result, the cutter rotary solenoid 54 moves the movable blade ssn, thereby cutting the thermal adhesive tape MT. Incidentally, a timing chart of the main parts for explaining the above operation is arranged as shown in FIG.

〔Effect of the invention〕

As described in detail above, according to the present invention, it is possible to provide a drive control system for a rotary body that can keep the conveyance amount of a conveyed object constant.

[Brief explanation of drawings]

The drawings are for explaining one embodiment of the present invention, and FIGS. 1 and 2 are plan views showing the configuration of the binding device according to the present invention, and FIG. 3 shows the block 1/-ki magnet and its vicinity. FIG. 4 is a schematic block diagram showing the main parts of the electric circuit, and FIG. 5 is a timing chart of the main parts to explain the operation. MT...Thermal adhesive tape (conveyed object), 49...Feed roller (rotating body), 50, ..., rotation f411+, 6
o-: Feed motor (driving body), 57... Player hand magnet, 57. ...Disk, 57. ...Friction plate, 157s...Magnet. Applicant's representative Patent attorney Takehiko Suzue 3rd floor! Figure 4 Figure 5 + T -H

Claims (1)

[Claims] A device for driving a rotating body by a driving body,
A brake magnet is installed on the rotating shaft that transmits the rotation of the Mayuki drive body to the rotating body to stop the rotation, and the time from when the brake magnet releases the rotational stop to the rotational stop of the rotating shaft is calculated. A drive control method for a rotating body, characterized in that the drive time of the rolling body is determined by the drive time of the rolling body.