KR810000702B1 - Shuttle exchanging mechanism of automatic weaving loom - Google Patents

Abstract

The feeler which is installed in the weaving loom detects and memorizes the diminishing of the weft yarn to which its shuttle is belonged. The exhausted shuttle refurns to the shuttle box and the stop apparatus operates the working lever by the detection memory signals and the working lever stops the weaving loom at the optimum position. After the shuttle exchanging, the working lever reinstalls the shutle in the working position and the supply magazine(48a) classifies the exhausted shuttle and the new one. The selecting apparatus (71) shifts the new shuttle downwards.

Description

Book exchanger for double looms

1 is a side view of the present invention showing a state in which the sled is stopped at a predetermined position.

2 is a plan view of the main portion of FIG.

3 is a side view of the main part of the double loom.

4 is a plan view of main parts, in which part of FIG. 3 is omitted.

The present invention relates to a drum automatic changer for a loom, especially an automatic loom, to prevent damage to the loom and the drum, to ensure a reliable drum exchange, and to prevent noise generated during the drum exchange, thereby improving the working environment. It is to.

Since 1976 Patent Application No. 838 of the same applicant relates to the case of single weaving using one book, the present invention will be described with a double-weaving machine for picking two or more books alternately.

A double loom using a plurality of books will be described based on the drawings shown in FIGS. 3 and 4.

The drawing shown in the embodiment shows a case with two books, and the difference between the singles and the two is provided in two rows corresponding to the book used in the supply magazine, and the new book corresponding to the empty book where the wefts are consumed is stored in two rows. A book selector with an elevator cylinder is installed, which is sorted by the drum holder and placed on a drum holder, and lowered to the delivery position to deliver the new drum to the drum feed lever.

48a is a supply magazine arranged in two rows, and the new books 49b and 49c having different types of weft yarns (e.g., S lead and Z lead) are stored in each of the storage compartments 48b and 48c. 49c is prevented from falling by the storage chambers 48b and 48c held in the drum holding plate 70.

The sorting device 71 always has the sorting levers 73 and 73a, which are piled to the left in the front and the left in FIG. 3, and the sorting levers 73 and 73a are opposed to the springs 72. The solenoid 74 protrudes backward, and in this embodiment, the operation of the solenoid 74 is transmitted to the selection levers 73 and 73a via the link 75. The selection levers 73 and 73a are fitted to the guide grooves 77 installed on the two shaft plates 76 of the supply magazine 48a, and the selection plates protrude inwardly of the supply magazine 48a. 78) is installed, and the selection plate 78 is always located under one side of the new books 49b and 49c in either row of the supply magazine 48a, regardless of the operation or non-operation of the solenoid 74. 75 is affixed to the shaft 79 transversely between both selection levers 73 and 73a. 75a is a support link. 80 is an elevator cylinder for vertically moving a pair of drum holding plates 70, and the drum holding plates 70 vertically move the elevator rods 81 mounted on the lower surface to the perforations 82 of the sliding bases 50 and 50a. Decrementally, both rods 81 are connected at shaft 83. 84 is an L-shaped link retained on the shaft 86 of the bracket 85 mounted on the sliding bases 50, 50a, one end of which is connected to the piston rod 87 of the elevator cylinder 80, and the other end is of 88 is addressed to sandwich the shaft 83.

The north exchange is described with respect to a loom having two drums having the above configuration.

In the case of doubles, the opposite north box is two speeches up and down, and since the north box is moved up and down by the known up and down moving mechanism, picking the book alternately, and when the book is consumed, it is either book box (up or down). The detection of the book application picked up from the above using a vertical motion mechanism is the same as in the prior art.

When the photoelectric wheeler detects that the weft of the empty book entering the opposite north box is exhausted, at the same time, the up / down mechanism is used to memorize which north box of the north box is empty in a memory relay of an electric circuit (not shown). When picked by, the Slave stops the machine near the last retreat by this detector memory signal as in fasting. The machine stops, and simultaneously with the operation of the picker retracting cylinder, the solenoid 74 of the book selector 71 operates by the detection memory signal of the up / down mechanism.

The case where the solenoid 74 is excited and protruded will be described. When the link 75 is pressed by the protrusion of the solenoid 74, the selector levers 73 and 73a are extruded backward against the spring 72 and so far. The selection plate 78 under the new book 48b moves to the bottom of the new book 48c to sort out the new book (in this case, the new book 48b is supplied). Next, the elevator cylinder 80 is operated to descend the new book 48b selected by the drum holding plate 70 in a state where it is placed, and lowers it to a delivery position almost equal to or slightly higher than the upper surface of the receiving unit 56 in the drum supply. . At this time, the new book 48c is not lowered because it is supported by the selection plate 70. The pick operation picker retracts and is made in parallel with the empty book ejection operation of discharging the empty book toward the front north box by using the front north box, and when the north supply lever 47 moves forward, the north holding plate 20 The new book 48c placed on the front side is pulled from the reception unit 56 and supplied to the book exchange side book box 21. When the supply of the new book is finished, the book supply lever 47, the front book box 23, the picker, the book holding plate 70, and the selection levers 73 and 73a are all returned and the loom restarts. When the solenoid 74 is not excited, the new book 48c is supplied because the selection plate 78 is below the new book 48b as shown.

In the embodiment of the present invention, the solenoid 74 of the book selector 71 is operated by the detection memory command of the up / down mechanism, so that the book selector 71 operates only at the time of book exchange.

In the duplex loom, as in the prior art, the up-and-down mechanism of the opposite side of the box and the selection plate are connected via a suitable connecting mechanism such as a connecting rod, and the mechanically sorting the drum of the supply magazine in relation to the up-and-down mechanism during operation. The object of the present invention can also be achieved by using a book selector. In the case of double weaving machines, it is good to select a new book corresponding to the empty book where the weft is consumed during the discharge operation of the empty book, and to wait for the delivery position of the book supply lever. In addition, the operation of the embodiment of the present invention may be performed electrically by a known control mechanism, and a detailed description thereof will be omitted.

As described above, in the present invention, the supply of the new drum is performed by the air cylinder, so that it is not necessary to accurately stop the slay during the north exchange to the last retracted position. Therefore, the stopping of the loom may be a conventional simple structure by clutches and brakes, and thus does not require a special stop mechanism. In addition, only the north drum box is opened and closed, and during operation, the north drum box is pressed onto the base plate with an air cylinder.

In addition, since the empty drum is discharged toward the north drum box, the loosening of the weft yarn is not impeded, and the residue is easily cut. If a replacement is caused, it will not damage the drum or the mechanical parts as in the case of mechanical type.

In addition to eliminating the mechanical drawbacks of automatic drum exchange by stopping the loom as described above, the present invention is an extremely practical invention that can greatly cope with the so-called automatic modification of the ordinary loom into a drum automatic change loom only with a simple structure.

Claims (1)

At the entrance of the opposing north box installed in the double loom, Wheeler detects and remembers which North box consumed the weft and the North which consumed the weft, so that the empty North that was exhausted by the weft enters the North Exchange side box. A stop device that opens the operating lever by the detector memory signal to stop the loom before the sled is near the last retracted position, and the operating lever and the detector memory signal that are returned to the operating position after the book exchange operation is completed by the operating cylinder. Selected magazines and front-side boxes, which are selected by the supply side magazine with the same side of the north side box, and select the new north side corresponding to the exhausted empty book, and drop it to the position of delivery to the north supply lever. Release the engagement with the northern tip at the time of north exchange by the forward north box and the pick-up cylinder which swings upwards and closes when the drum is discharged and supplied by the swinging cylinder. In order to retract the picker retreating and the open empty drum to the rear drum box, the drum is discharged and the drum is discharged by the drum and the new drum in the delivery position is moved forward and backward by the drum feed cylinder. Book exchange device of the double-type loom weaving machine, characterized in that made by the book feed lever to supply to.

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