KR910001996Y1 - Width of towel auto perception cutting motion - Google Patents

Abstract

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Description

Towel Width Automatic Detection Cutting Device

1 is a view schematically showing the entire process of the present invention.

2 is a perspective view showing a side of the present invention.

3 is a perspective view showing a front side of the present invention.

4 is a circuit diagram of the present invention.

(A), (b) and (c) are circuit diagrams extracting portions of FIG.

6 is a view showing the fabric of the towel

* Explanation of symbols for main parts of the drawings

1: towel 2: weft

3: detector 4,7 ': Puri

5: V belt 6: ball screw

7: nut 8: cutting knife

9, 9 ': Rail 10, 10': Wheel

M, M2: motor M1: forward and reverse motor

R: Laura L: Fluorescent Lamp

K: relay

Towel width automatic detection cutting device of the present invention. In general, when the towel is woven with a loom, several towels are simultaneously woven in order to increase production efficiency, and the woven towels and the towels are thus connected to the weft division at regular intervals.

Towel fabric such as this is that a person directly cuts the towel and the weft connected with the towel with scissors, and cuts it to a certain length of the towel, and then produces the towel through the finishing process of the immersion.

Since the conventional process as described above has to cut each weft yarn from several pieces of towel fabrics at the same time, it is cumbersome for several people to cut at the same time. Because of the difference, there were not only smooth connection of work after cutting work but also discontinuity of the cut fabric.

In order to solve the above problems, the present invention is to cut the automatic weaving only the weft connected between the width and width of the towel when the fabric is woven in multiple widths from the weaving machine.

Referring to the configuration of the present invention as described in detail based on the accompanying drawings as follows.

The fabric of the towel 1 woven in various widths is supplied at a constant speed while being unfolded by the rollers R as shown in FIG. 1, and the fluorescent lamp L is provided below the fabric of the towel 1. The sensing unit is installed above the fluorescent lamp L and has a phototransistor PTl (PT2) (PT3) (PT4) built in the upper side of the weft yarn 2 between the width of the towel 1 and the width. (3) is installed, the phototransistor (PT1) (PT2) is connected to the forward and reverse motor (M1) in a circuit, the forward. The V-belt 5 fastened to the four wheels of the inverse motor M1 layer is connected to the four wheels 7 'of the nut 7 screwed to the ball screw 6, and underneath is a separate motor ( A circular cutting knife 8 is mounted on the side of M), and both sides of the circular cutting knife 8 and in the direction parallel to the ball screw 6 " &Quot; Rails 9 ", 9 " are mounted, and the wheels 10, 10 " mounted on the rails 9 & 9 " It is composed of a structure driven by the nut (7) which is moved while being rotated by.

The circuit structure detected and driven by the sensing unit 3 is a power supply unit for rectifying AC15V consisting of a bridge rectifier circuit, a constant voltage IC, and a smoothing capacitor (C1) (C2) to DC12V and supplying each circuit to a light source under the far end. While amplifying the signal detected by the phototransistors PT1 (PT2) and phototransistors PT1 (PT2), which sense the light emitted from the fluorescent lamps L, it is determined according to the output state of the phototransistors PTl (PT2). (PT1 = PT2 = 0, OUT1 = OUT2 = 0: PT1 = 1, PT2 = 0, OUT1 = 1, OUT2 = 0: PT1 = 0, PT2 = 1, OUTl = 0 , OUT2 = 1: PT1 = PT2 = 1, OUT1 = OUT2 = 0 IC 2902 (IC1) consisting of four op amps

Resistor (R1) (R3) (R4) (R5) (R6) (R7) (R8) (R9) (R10) (R13) (R14), variable resistor (R2) and port for adjusting the sensitivity of the entire control circuit Main sensing circuit section consisting of a variable resistor (Rl1) (R12) for adjusting the sensitivity of the transistor and capacitors (C3) (C4) (C5) for bypassing high frequency components: two TRIACs for switching AC 100V, and a reverse motor ( Two zero volt switching drives IC3040 (IC2) (IC3) to ensure the switching of M1), transistors TR1 (TR2) and resistors R15 (R16) that interface IC1 with IC2, IC3 IC2 and IC3. (R17) (R18) (R19) (R20) (R21) (R22) (R23) (R24) and capacitors (C6) (C7) consisting of a forward and reverse motor according to the state of the two outputs of the main sensing circuit section. TRIAC drive circuit unit for rotating the M1) left and right; And a relay (K) driving circuit comprising a diode (D1), and combining the signals sensed by the phototransistors (PT3) and (PT4) to turn off the main motor (M2) to stop the operation of the entire device. Consists of Referring to the effect of the present invention as described above is as follows.

In cutting the weft of the towel width 2 while the fabric of the towel 1 woven in several widths is fed at a constant speed while being unfolded by the rollers R as shown in FIG. When fed by R), the central part of the weft must be fed to the cutting blade of the cutting knife 8.

At this time, when the center portion of the weft yarn is slightly left or right from the cutting blade of the cutting knife, the phototransistor PTl PT2 is detected by the light transmitted from the fluorescent lamp L to the weft yarn, and thus detected and detected. The signals are input to terminals 3 and 5 of the IC2902 (IC1) connected to the phototransistors PT1 and PT2, respectively, and the input detection signals are amplified and combined. If PT = 1 and PT = 2, OUT = 1 , OUT2 = 0 and input to TRIAC drive circuit, PT1 = 0, PT2 = 1, OUT1 = 0, OUT2 = 1, input to TRAIC driver circuit, PT1 = PT2 = 0, PT1 = PT2 = 1 OUT1 = OUT2 = 1 and input to the TRAIC drive circuit.

Once, the amplified combined detection signal drives TRlAC1 connected through TRI and IC3040 (IC2) when OUTl = 1, and drives forward and reverse motor M1 to the right, and through TR2 and IC3040 (IC3) when OUT2 = 1. By driving the connected TRIAC2, it drives the forward and reverse motor (M1) to the left.

Then, the nut 7 is rotated along the ball screw 6 by the V-belt 5 fastened to the pulley 4 of the shaft of the stationary motor M1, and the main body integrally mounted with the cutting knife 8 is left or right. As it is moved to the right, the cutting knife 8 is automatically adjusted to be positioned on the center portion of the weft.

If, inadvertently, outside the sensing range of the phototransistors (PT1) (PT2), the detection signal is brought into the range of the phototransistor (PT3) (PT4), which is the auxiliary sensing range, this detection signal is connected to the IC connected to the phototransistor (PT3) (PT4). 2902 (IC4) are input to terminals 3 and 5, respectively, and the detected signal is amplified. If PT3 = PT4 = 0, OUT3 = 0 is input to the relay drive circuit, and PT3 = 1, PT4 = If 0: PT3 = 0, PT4 = 1: PT3 = 1, PT4 = 1, OUT3 = 1 and it is input to the relay drive circuit.

Once OUT3 = 1, the detected signal is amplified at TR3 to drive the relay K to turn off the main motor M2 to stop the entire apparatus.

According to the present invention, weaving a wide range of towel fabrics, one by one for each cutting part, and due to the fluctuations of the cutting work and the poor connection of the cutting surface after cutting work, It is a useful design that solves the lack of efficient work and refinement at once.

Claims (1)

In cutting the weft yarn 2, which is supplied at a constant speed while the fabric of the towel 1, which is woven in several widths, is stretched by the rollers R, the bottom of the weft yarn 2 is interposed therebetween. The fluorescent lamp L and the upper portion thereof are installed such that the sensing units 3 in which phototransistors PT1, PT2, PT3, and PT4 are installed are located, respectively, and the phototransistors PTl and PT2 are main bodies. The V-belt 5, which is connected to the forward and reverse motor M1 mounted in the circuit, and is caught by the pulley 4 of the forward and reverse motor M1 shaft, has the pulley 7 of the nut 7 screwed on the ball screw 6. '), The lower part of the main body is equipped with a circular cutting knife (8) on the shaft of a separate motor (M), perpendicular to the cutting knife (8) and parallel to the ball screw (6) (9) and (9 '), and the wheels (10, 10') rolling on the rails (9) and (9 ') are moved while being rotated by the V-belt (5) along the ball screw (6). By nut (7) The automatic width detection cutting device of the towel, characterized in that the cutting knife is moved to the left or right to cut only the center portion of the weft.