JPH0512202Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a tape winding machine that winds a tape woven by a loom onto a reel.

(Prior art) As a conventional technology, there is a tape in which a reel for winding the tape is connected to a motor, and a switch is provided to turn off the motor when the amount of tape wound onto the reel reaches a predetermined value. The winder is hot.

(Problems to be Solved by the Invention) In the conventional device described above, the reel always rotates at a constant speed, and as the number of tape windings on the reel increases, the tape winding speed gradually increases.

The winding speed of the tape mentioned above must be set below a predetermined speed for safety reasons, but conventionally, it was necessary to set the winding speed so that the end of winding, at which the winding speed reached its maximum, reached a safe speed. This has the disadvantage that the initial tape winding speed is significantly reduced and the winding time is prolonged.

Furthermore, conventionally, the tape is wound at high speed toward the outer periphery of the reel, so as the number of turns of tape increases, the torque of the reel increases at an accelerating rate.

For this reason, upon completion of winding, the axial center of the tape is firmly tightened to the core of the reel, resulting in the disadvantage that it takes time and effort to remove the wound tape from the reel.

Furthermore, since the reel was always connected to the motor, even if the stop switch was activated, the reel would not stop immediately due to the inertia of the motor, resulting in an inaccurate tape winding amount.

The purpose of the present invention is to provide a tape winding machine that can shorten the winding time while maintaining the tape winding speed at a safe speed, and that can wind the tape onto a reel stably and accurately. .

(Means for Solving the Problems) In order to achieve the above object, the present invention is constructed as follows.

That is, a reel for winding the tape is connected to a motor via an electromagnetic clutch, a variable resistor is provided to control the rotational speed of the motor, and the reel is connected to an electromagnetic brake on the tape supply side and the tape is directed toward the reel. A brake roll is provided for guiding the tape, and an actuating body is provided that slides on the outer peripheral surface of the tape wound on the reel and moves in the radial direction of the reel. A measuring device is provided to measure the winding length of the tape, and when the value of the measuring device reaches a predetermined value, the electromagnetic A switch is provided for turning off the clutch and turning on the electromagnetic brake.

(Function) Since the present invention has the above configuration, when one end of the tape is locked to the reel and the motor is started to rotate the reel, the tape is wound onto the reel.

When the tape is wound onto a reel, the actuating body is displaced toward the outer circumference of the reel in approximately proportion to the amount of winding, and the displacement of the actuating body changes the resistance value of the variable resistor via the mover. The rotation speed of the motor will gradually decrease.

Also, when the tape winding length on the reel reaches a predetermined value, a switch is activated to turn off the electromagnetic clutch, cutting off torque transmission from the motor to the reel, and at the same time turning on the electromagnetic brake. This causes the brake pulley to stop and the movement (flow) of the tape toward the reel to be stopped.

(Example) Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is an explanatory front view showing an embodiment of the present invention.

In FIG. 1, reference numeral 1 denotes a base, on the upper surface of which a bracket 2 is erected and fixed, and a reel 3 is rotatably supported on the front surface of this bracket 2.

The reel 3 has a tape 5 attached to the axial center of the disc body 3a.
The shaft 3b around which the shaft is wound is made to protrude forward.

The shaft 3b is divided into two in the axial direction, one of which is movable back and forth relative to the other and connected to the pedal 4 via a link mechanism (not shown).
By operating the above-mentioned one, the above-mentioned one is moved back and forth so that the tape 5 wound around the reel 3 can be easily separated from the mandrel.

A pulley 3c is fixed to the rear surface of the reel 3,
This pulley 3c is connected to an electromagnetic clutch 6 installed inside the base 1, and this electromagnetic clutch 6 is connected to a motor 7 also installed inside the base 1.

The electromagnetic clutch 6 is equipped with a braking function, and is adapted to cut off torque transmission from the motor 7, that is, to brake the reel 3 when the clutch is turned off. The motor 7 is a DC motor, and its rotational speed is controlled by a variable resistor 8.

The variable resistor 8 is supported on the bracket 2 on the right side of the reel 3, and has a rotating shaft for adjusting its resistance value.
That is, a rod-shaped actuating body 9 is attached to the movable element 8a.
This operating body 9 has its tip end connected to the shaft 3b of the reel 3.
make contact with the top surface of the

The connection between the actuating body 9 and the movable element 8a is set such that when the swinging end of the actuating body 9 moves toward the outer circumference of the reel 3, the resistance value of the variable resistor 8 increases.

Further, on the left side of the reel 3, a tape 5 to be supplied to the reel 3 is arranged, and a measuring device 10 for measuring the winding length of this tape 5 is arranged.

This measuring device 10 includes a measuring roll 10a connected to the input shaft of a counting wheel, and this measuring roll 10a is brought into contact with a braking roll 13a of an electromagnetic brake 13 rolling along the tape 5.

A switch 12 is provided inside the measuring instrument 10, which is activated when the number of revolutions of the counting wheel reaches a predetermined value.

Also, a base 1 is located on the left side of the measuring instrument 10.
A pair of guide rolls 14 for guiding the tape 5 are attached to the upper guide roll 14 located on the upper side.
A is attached to be movable up and down, and a limit switch 15 is provided which is activated when the upper guide roll 14a moves upward by a predetermined value or more.

Reference numeral 16 denotes a control box, which turns off the electromagnetic clutch 6 to cut off torque transmission from the motor 7 to the reel 3 when the switch 12 or limit switch 15 provided on the measuring instrument 10 is activated, and also turns off the electromagnetic brake 13. Activate tape 5
A control circuit for stopping the supply of is housed.

Further, 17 is an inverter box containing an inverter circuit that converts alternating current to direct current, 18 is a start switch, 19 is a reset switch, 20 and 21 are 100V and 200V power switches, 22
is a stop lamp that lights up when the switch 12 or limit switch 15 is activated.

Next, the operation mode of the above embodiment will be explained.
One end of the tape 5 is locked to the shaft 3b of the reel 3, and an actuating body 9 is placed on the top surface of the locked tape 5.
Touch the tip of the

Next, the starting switch 18 is turned on to start the motor 7.

Then, the reel 3 is rotated via the electromagnetic clutch 6 to wind up the tape 5.

Further, when the tape 5 is wound onto the reel 3, the actuating body 9 is displaced toward the outer circumferential direction of the reel 3 in approximately proportion to the amount of winding. As a result, the resistance value of the variable resistor 8 is gradually increased, and the rotational speed of the motor 7 is gradually decreased. As a result, the speed of the tape 5 during winding and the winding force around the reel 3 are always substantially constant.

Further, when the winding length of the tape 5 onto the reel 3 reaches a predetermined value, the switch 12 is activated, the electromagnetic clutch 6 is turned off, and the reel 3 is transferred from the motor 7.
At the same time, the electromagnetic brake 13 is activated.

As a result, the rotation of the reel 3 is quickly stopped, and the movement of the tape 5 to the reel 3 is also stopped.

Further, when the tape 5 is being wound up by the reel 3, if there is a binding part indicating a defective part in the tape 5 on the pre-supply stage, this binding part is attached to the guide roll 14.
, the upper guide roll 14a moves upward and activates the limit switch 15, thereby causing the electromagnetic clutch 6 and the electromagnetic brake 13 to move upward.
is activated to immediately stop the rotation of the reel 3 and the movement of the tape 5.

After the winding of the tape onto the reel 3 is completed, when the pedal 4 is depressed to move one of the mandrels 3b backward, the winding force of the tape 5 wound around the other mandrel 3b decreases, and the winding force is reduced. The taken tape can be easily removed from the reel 3.

(Effects of the invention) As is clear from the above explanation, the invention reduces the rotational speed of the reel as the amount of tape to be wound increases, so that the tape winding speed is maintained at full speed. The winding time can be shortened while maintaining the same.

In addition, the reel is connected to a motor via an electromagnetic clutch, a braking roll connected to an electromagnetic brake is provided on the tape supply side of the reel, and a switch installed in a measuring device that measures the tape winding length is used to control the electromagnetic clutch. Since the electromagnetic brake is turned on at the same time as the reel is turned off, the reel that has wound a predetermined amount of tape can be quickly stopped, the tape can be wound accurately, and the tape on the supply side can be moved quickly. This has the effect of increasing safety by preventing this part from loosening.

[Brief explanation of the drawing]

FIG. 1 is an explanatory front view showing an embodiment of the present invention. 1... Base, 2... Bracket, 3... Reel, 3a... Disc body, 3b... Mandrel, 3c... Pulley, 4... Pedal, 5... Tape, 6... Electromagnetic clutch, 7 ... Motor, 8 ... Variable resistor, 8
a...Mover, 9...Working body, 10...Measuring instrument,
10a...Measuring roll, 12...Switch, 13
...Electromagnetic brake, 13a...Brake roll, 14
... Guide roll, 14a ... Upper guide roll, 15 ... Limit switch, 16 ... Control panel, 17 ... Inverter box, 18 ... Start switch, 19 ... Reset switch.

Claims (1)

[Scope of utility model registration request] A reel for winding the tape is connected to a motor via an electromagnetic clutch, a variable resistor is provided to control the rotational speed of the motor, and the reel is connected to an electromagnetic brake on the tape supply side and guides the tape toward the reel. an actuating body that slides against the outer peripheral surface of the tape wound on the reel and moves in the radial direction of the reel; A measuring device is provided to measure the winding length of the tape by connecting the variable resistor so that the resistance value increases as the variable resistor is displaced in the direction, and when the value of the measuring device reaches a predetermined value, the electromagnetic clutch is activated. A tape winding machine comprising a switch for turning off the electromagnetic brake and turning on the electromagnetic brake.