KR870000484Y1 - Weft yarn selection device of rapier loom - Google Patents

Abstract

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Description

Weft Selector of Rapier Loom

1 is a circuit diagram of the present invention.

* Explanation of symbols for main parts of the drawings

1: keyboard 2: encoder

3: weft select memory 4: decoder

5: Upward drive switch part 6: Downward drive switch part

7: Dip switch part 8: Address designation counter

9: segment drive circuit 10: segment display device

11: Weft select indicator 12: Solenoid part

SW ₁ , SW ₂ : Down switch SW ₃ : Up switch

SW ₄ : Cree Switch

The present invention relates to a weft selector in which a weft yarn is selected by installing a programmable counter and a memory device in a rapier loom, and driving a solenoid of a finger according to a pre-set program sequence.

The lather weaving device of the conventionally used rapier weaving machine uses a perforated tape that records the position of the finger to be selected according to the fabric to be woven, as in Utility Model Registration Application No. 83-1604 previously filed by the applicant of the present invention. There is a mechanical device that selects the weft by detecting the perforated part, or installs the light emitter and the dimmer, and passes the weft-selected perforated tape between them so that the solenoid operates according to the light signal generated by the projection through the perforation part. There was a weft selector by light detection in which the weft select finger was activated.

However, in the case of the former, the perforation on the perforated tape is detected by a physical device by selecting one of the weft yarns among the plurality of weft yarns, and the finger passes through the perforation portion, so that the weft yarn that is held at the tip end is supplied. In order to detect the perforation part, the finger must always be elastically in contact with the perforated tape, so if the tape is used repeatedly, the perforated part of the tape is severely worn out and the finger cannot operate correctly. The same perforation tape is required, and in the latter case, the perforator card should be used separately because there is a risk of malfunction if dirt or dust gets on the light emitter or the photoreceptor. Not economical, of course, loom operation The castle also had a number of drawbacks.

Therefore, the present invention is designed to improve the above-mentioned defects, especially when weaving a patterned fabric such as checkered fabric, the finger selects the weft yarn according to the shape of the fabric and controls the finger even after long-term use. If the fabric can be changed and the shape of the fabric is changed, the types of fabric can be stored in the storage device so that the program contents can be easily changed, and then the weft is selected by operating the corresponding finger according to the stored contents. It is an object of the present invention to provide a weft selector of a rapier loom.

Hereinafter, the configuration, operation, and effects of the present invention will be described in detail based on the drawings.

The present design is that the keyboard (1) the input-output terminal of the intermediate storage device to the selected weft (3) the encoder (2) (IO ₁ -IO ₄₎ and the input terminal (D ₁ -D ₄₎ of the decoder (4) connected Meanwhile, the upward drive switch 5, the downward drive switch 6, the dip switch 7 and the cree switch SW ₄ are input terminals UP (DW) (I ₁ -I ₄ ). The output terminals Q ₁ -Q ₄ of the addressing counter 8 connected to the CL have an address terminal ( ₁ ) of the segment display device 10 and the weft selection memory device 3, which are interposed between the segment drive circuit 9, AD ₁ -AD ₄ ) is connected, and the output terminal (DQ ₁ -DQ ₆ ) of the decoder ₄ is connected to the solenoid part 12 coupled to the weft selection indicator 11 and the weft selection finger (not shown). It is structured.

Reference numeral SWa-SWd denotes a dip switch, CL denotes a cree terminal, and LED ₁ -LED ₆ denote light emitting diodes.

1 is a circuit diagram of the present invention, wherein the upper direction switch (SW ₃ ) and the lower direction switch (SW ₁ ) is external to allow the user to easily operate the addressing counter (8) to operate up or down installation eda and down direction switch (SW ₂₎ is there to give to the loom is working, one reduces the modulus of the counter (8) for addressing each time the rotating laying installed eda main shaft of the loom, each of these switches (SW ₁₎ (SW ₂ ) (SW ₃ ) is connected to the latch circuit consisting of the NAND gate (ND _1- ND ₄ ) to configure the upward drive switch 5 and the downward drive switch (6).

The terminal (BRW) RD of the addressing counter 8 is connected to limit the upper limit of the count that the counter 8 can count. This upper limit is operated by the dip switch unit 7. Is determined as

In addition, the solenoid part 12 is configured by combining a plurality of weft selection fingers (not shown) with a plurality of solenoids (not shown) which are generally used, and the solenoid is driven according to an input signal to select the weft. The finger is to be operated.

In the weft selection device of the present invention configured as described above, when the weft arrangement information about the fabric to be woven is stored in the weft selection storage device 3, first, the dip switch unit 7 is operated to determine the number of steps of the weft array ( It is preset to the addressing counter 8, and when the cree switch SW ₄ is turned on, the output of the cleared addressing counter 8 is transmitted to the segment display device 10 through the segment driving circuit 9. The number 0 is displayed on the segment display device 10, but when the down switch SW ₁ is operated once, the number of weft array steps preset by the address assignment counter 8 is displayed on the segment display device 10. displayed at the same time is output to the address terminal (AD ₁ -AD ₄₎ of the weft selection storage device 3, so the number of pressing the first array has a keyboard (1) of the specified plurality of fingers finger From the surface encoder (2) code conversion, and then the weft selection storage device 3 input-output terminals (IO ₁ -IO ₄₎ been input to the address specified for the counter (8) at the input to the address terminal (AD ₁ -AD ₄₎ In addition, the number of the array of fingers input from the keyboard 1 is one of the light emitting diodes (LED ₁ -LED ₆ ) installed in the weft selection indicator (11) via the encoder (2) and the decoder (4). The light emitting diode is turned on.

Subsequently, when the down direction switch SW ₁ is operated again, the number displayed on the segment display device 10 decreases by one as the coefficient of the addressing counter 8 decreases by one. The reduced address information signal is also input to the address terminals AD ₁ -AD _{4 of the second} terminal, so that the arrangement number of the finger input from the keyboard 1 is stored in the corresponding address position of the weft selection memory device 3. . In this manner, the weft array number set in advance according to the pattern of the fabric to be woven is stored in the weft selection memory device 3.

When the loom is operated while all the weft array information is input in this manner, the weft array data corresponding to the address specified by the address designation counter 8 from the weft selection memory device 3 are input / output terminals IO ₁ -IO _4. The decoder 4 outputs to the decoder 4 accordingly, and accordingly, the decoder 4 decodes the weft array data input to the input terminals D ₁ -D ₄ , and then decodes the weft array indicator 11 and the solenoid unit ( 12) outputs the light emitting diode of the weft selection indicator 11 for the weft, and at the same time, the corresponding solenoid of the solenoid part 12 is driven to operate the finger so that the specified weft is inserted into the opening of the loom. do.

On the other hand, at this time, the downward switch SW ₂ installed on the main shaft of the loom is controlled according to the rotation of the loom. That is, each time the weft array progresses once, the coefficient of the addressing counter 8 decreases by one. An address of the weft array to be executed is inputted to the weft selection memory 3.

An example of such an operation will be described in more detail with Table 1 below.

TABLE 1

In this case, the number of solenoids to be driven, that is, the weft yarns, is 6, and the arrangement order of the weft yarns to be weaved for a pattern is SOL ₁ , SOL ₃ , SOL ₂ , SOL ₄ , SOL ₆ , SOL ₂ , SOL ₅ A solenoid coupled with a corresponding finger is shown. Each solenoid is not shown in the drawing, but is provided for convenience of description, which is installed inside the solenoid part 12. Therefore, necessary addresses may be used from "0" to "6". Therefore, when each dip switch SWa-SWd of the dip switch unit 7 is operated to preset “6” in the counter 8, and the counter switch 8 is creeped by pressing the cree switch SW ₄ . In the segment display apparatus 10, 0 is output. Subsequently, when the down direction switch SW ₁ is pressed once, the preset "6" is output from the output terminals Q ₁ -Q ₄ of the addressing counter 8 to turn the segment drive circuit 9 on. It is displayed on the segment display device 10 and is input to the address terminals AD ₁ -AD ₄ of the weft selection memory device 3. At this time, if you press the number "1" corresponding to the solenoid (SOL ₁ ) designated by the keyboard (1), the code corresponding to "1" is stored in the address "6" of the weft selection memory (3) and the weft selection indicator The light emitting diode LED ₁ of 11 is lit.

Subsequently, when the downward switch SW ₁ is pressed again, the addressing counter 8 decreases one coefficient so that the code corresponding to “5” is the segment pointing device 10 and the weft selection memory device 3. Are output to the address terminals AD ₁ -AD ₄ . At this time, if the number "3" corresponding to the second arrangement order solenoid (SOL ₃ ) is pressed again with the keyboard (1), the code corresponding to "3" is stored in the address "5" of the weft selection memory device (3). The light emitting diode LED ₃ of the weft selection indicator 11 is turned on. The remaining weft arrays SOL ₂ , SOL ₄ , SOL ₆ , SOL ₂ , and SOL ₅ to be performed in this manner are the addresses "4", "3", "2", "1", " Are stored in order of 0 ".

In this way, when the weft array data is stored and the loom is started, the addressing counter 8 inputs the code corresponding to “1”, which is the data in “6”, which has been preset first, to the decoder 4. Accordingly, as the light emitting diode LED ₁ of the weft selection indicator 11 is turned on, the solenoid SOL ₁ in the solenoid part 12 is operated so that the weft yarn designated by the corresponding finger enters the opening of the loom. At this time, each time the loom is rotated, the down direction switch SW ₂ is operated to decrease the coefficient of the counter 8 one by one, so that the weft selection memory 3 receives the weft selection data corresponding to the address that is reduced. 4) Through the output to the solenoid part 12, the weft arrays SOL ₂ , SOL ₃ , SOL ₂ , SOL ₄ , SOL ₆ , SOL ₂ , SOL ₅ , which are set in advance, are repeated in order to provide a pattern of a certain pattern. Weaving fabrics that are present.

On the other hand, if an abnormality occurs in the loom and the user wants to reverse the loom, operate the upward switch SW ₃ to increase one of the coefficients of the addressing counter 8 to reverse the operation of the above-described operation. The lost fabric is dismissed.

As described above, the present invention stores the data about the wefts arranged according to the pattern of the fabric in the weft selection memory device 3, and then operates the loom. As the loom rotates, the lower direction switch SW ₂ is addressed. Since the coefficients of the designation counter 8 are decremented one by one, the data corresponding to the address indicated by the address designation counter 8 is output to the solenoid portion 12 through the decoder 4 at that time. Although not shown, the fingers coupled to each solenoid installed in the solenoid portion 12 are operated so that the designated weft is introduced into the opening of the loom, so that the fabric having a complicated pattern can be easily woven. It is simple and reliable even for long-term use, and has the advantage of easily changing the pattern of the fabric.

Claims (1)

The input / output terminals IO ₁ -IO ₄ of the weft selection memory device 3 and the input terminals D ₁ -D ₄ of the decoder ₄ are connected to the keyboard 1 via the encoder 2. The directional drive switch 5, the downward drive switch 6, the dip switch 7 and the cree switch SW ₄ are each input terminal UP (DW) (I ₁ -I ₄ ) (CL). The output terminals (Q ₁ -Q ₄ ) of the addressing counter (8) connected to the address terminals (AD _1- ) of the segment display device (10) and the weft select memory (3) via the segment drive circuit (9). AD ₄ ) is connected, and the weft selection device of the rapier loom configured by connecting the weft selection indicator 11 and the solenoid unit 12 combined with the weft selection indicator 11 and the output terminals (DQ ₁ -DQ) of the decoder (4). .