JP2539096Y2 - Weft length storage device - Google Patents

Description

[Detailed description of the invention] << Industrial application field >> This invention relates to a weft length measuring and storing device, and more specifically, a weft having a variable length measuring drum composed of a plurality of movable drum pieces. The present invention relates to an improvement of a length measuring and storing device.

<< Prior art >> Examples of the weft length storage device of the type in which the winding diameter can be changed as described above include, for example, JP-A-60-28550 and JP-A-59-9242.
The one proposed in the issue is known.

According to the technique proposed in Japanese Patent Application Laid-Open No. 60-28550, a drum is formed by a plurality of outer peripheral elements arranged in a circumferential direction, and a feed shaft rotated by a motor is provided at a drum axis position. A screw extends forward. A nut is screwed onto the feed screw, and the nut is connected to each outer peripheral element by a radial link. When changing the winding diameter, when the feed screw is rotated by the motor, the nut moves back and forth in the axial direction, and along with this, the outer peripheral element is centriped through the link and displaced in the centrifugal direction to reduce the drum winding diameter. Be changed.

In the technique proposed in Japanese Patent Application Laid-Open No. 59-9242, a drum is formed by a plurality of adjustment rods arranged in a circumferential direction, and an adjustment member assembled to a main body by a fastening screw is used for these. Engage with adjustment rod. When changing the winding diameter, when the adjusting screw is loosened and the adjusting member is moved relative to the main body, the adjusting rod is centriped and displaced in the centrifugal direction to change the winding diameter.

<< Problems to be Solved by the Invention >> However, in the case of the former prior art, the feed screw for adjustment is provided on the front side of the drum, and the nut moves back and forth along the feed screw. Therefore, it is necessary to secure a space for the winding diameter changing mechanism on the front side of the drum, and it is unavoidable that the structure becomes considerably large. Further, since a dedicated motor is required to drive the feed screw for adjustment, the structure is considerably complicated.

In the latter prior art, the screw for fastening the adjusting member is operated from the front side of the drum, and the adjusting member is manually moved. Therefore, every time the fastening screw is operated, it is necessary to attach and detach the balloon breaker provided in front of the drum, and the work of changing the winding diameter becomes complicated. Further, since the adjustment is performed manually, the adjustment accuracy is inferior.

In view of the current state of the prior art, an object of the present invention is to make it possible to change the drum winding diameter which is small in structure, simple and easy to work, and has excellent adjustment accuracy.

<< Means for Solving the Problems >> Therefore, in the present invention, at least one fixed drum and a plurality of movable drums arranged in the circumferential direction and movable in the divergent and convergent directions with respect to the fixed drum are provided. The drum piece constitutes a length measuring storage drum, a drum base is provided facing the length measuring storage drum, and a predetermined number of pins attached to the movable drum piece are inserted into corresponding guide grooves formed in the drum base. The movable bolt is engaged with the pair of movable drums located at the axially symmetric position of the movable drum, and an adjusting bolt inserted diametrically from the peripheral surface of the length measuring storage drum is screwed into the movable drum. Is linked to the pair of movable drum pieces via the pins, and the adjusting bolt is rotated by an operation from the circumferential surface of the length measuring storage drum so that the movable drum pieces are separated from each other and approached. It is.

<< First Embodiment >> As shown in FIG. 1, the weft length measuring and storing drum 1 is composed of four divided drum pieces 11, 12, 13, and 14. The first drum piece 11 is a fixed drum piece, and is fixedly mounted on the drum base 3 which is stationary and fixed to a shaft (not shown) by appropriate fixing means.

The second to fourth drum pieces 12, 13, and 14 are movable drum pieces, and are separated from and approached to each other (radial direction) as described later.
It is possible to move to. Each of the movable drum pieces 12 to 14 has two screw holes 121, 122, 131, 132, and 14 at predetermined positions.
1 and 142 are formed, and the tips of the corresponding pins P1 to P6 are screwed respectively.

Drum base 3 has guide grooves 31-extending in a predetermined direction.
36 is formed through.

"C-shape" between each drum piece 11-14 and drum base 3
The bent links 51 and 53 are positioned facing each other. Holes 511, 512, 531 and 532 through which the pins P1 to P4 are inserted are formed in the links 51 and 53 at the upper end side and near the bending center, respectively. In addition, long holes 513 and 533 are formed in the lower half (lower limb) of the links 51 and 53 along the lower limb.

The pin P1 is inserted into the guide groove 31 of the drum base 3 and the hole 511 of the link 51 and screwed into the screw hole 121 of the drum piece 12.
Similarly, the pin P2 is inserted into the guide groove 32 of the drum base 3 and the hole 512 of the link 51 and screwed into the screw hole 122 of the drum piece 12.

Guide grooves 35 and 36 of drum base 3 and link holes 53
Pins P3 and P4 similar to the pins P1 and P2 are also inserted into 1 and 532 and screwed into the screw holes 131 and 132 of the drum piece 13.

Pins P5 and P6 are guide grooves 33 and 34 of drum base 3, respectively.
Then, it passes through long holes 513 and 533 formed in the links 51 and 53 and is screwed into the screw holes 141 and 142 of the drum piece 14.

S1 to S6 in FIG. 1 are sleeves for allowing the pins P1 to P6 to smoothly slide the guide grooves 31 to 36 and the long holes 513 and 533 of the links 51 and 53.

FIG. 2 shows the drum base 3, the links 51 and 53, the pins
It is a front view showing the state where P1-P6 and sleeves S1-S6 were assembled. In FIG. 2, YG is a locking pin for controlling the timing of unwinding / locking of the weft, and YG is a rotary yarn guide for rotating the circumference of the drum relatively apart and winding the weft around the length measuring storage drum. is there.

Among the movable drum pieces 12, 13, and 14, a pair of movable drum pieces 12, 13 at symmetrical positions are provided with a drive unit that is separated from and approached to each other. As shown in FIGS. 1 and 3, the bolt B insertion hole 137 is formed to penetrate from the side surface of the movable drum piece 13 toward the center, while the movable drum piece 12 forming a pair with the bolt B insertion hole 137 is formed. The insertion hole 127 is formed in a radial direction from the center side thereof and extends in the direction of the extension of the insertion hole 137 formed in the movable drum piece 13. This insertion hole 1
27 need not extend all the way around the outside of the movable drum piece. On the opening side of the insertion hole 127, a female screw corresponding to a male screw portion formed at the tip of the bolt B is formed.

The bolt B is inserted from the peripheral surface side of the movable drum piece 13, and the male screw part formed at the tip thereof is screwed into the female screw part formed in the through hole 127.

 Next, the operation of the first embodiment will be described.

FIG. 3 shows a state where the winding diameter of the length measuring storage drum 1 is minimum. From this state, in order to increase the winding diameter of the length measuring storage drum 1, insert a wrench W into the bolt B head and insert the bolt B
Is rotated in a predetermined direction. Then, the male thread portion of the bolt B rotates in the female thread portion of the insertion hole 127 formed in the movable drum piece 12, pushes the movable drum piece 12, and the movable drum piece 13 and the movable drum piece 12 are separated from each other. Move in the direction of Then, the movable drum piece 14 linked to these movable drum pieces 12 and 13 also moves outwardly while being regulated by the guide grooves 33 and 34,
The winding diameter increases.

The state where the winding diameter of the length measuring storage drum 1 has reached the maximum diameter is the fourth state.
As shown in the figure. From this state, the length measuring storage drum 1
In order to reduce the winding diameter of, the wrench W is rotated in the opposite direction, and the bolt B is rotated in the opposite direction. Then, the movable drum pieces 12, 13, and 14 move in the convergence direction, and the winding diameter can be reduced.

<< 2nd Example >> As shown in FIG. 5, the length measuring storage drum 7 of 2nd Example is shown.
Is composed of one fixed drum 71 and five movable drum pieces 72 to 76.

The movable drum piece 72 and the movable drum piece 76 horizontally opposed to the movable drum piece 72 are connected by bolts B, as in the first embodiment. Has become. As shown in FIG. 6, the two movable drum pieces 72, 76 are connected to the other movable drum pieces 73, 74, 75 by links 55, 57, respectively. And the movable drum piece
Pins (not shown) that connect 72-76 to links 55 and 57
Are guide grooves formed in the drum base 8 shown in FIG.
The movable drum piece 72-76 moves in the guide groove 80-89 direction. In FIG. 5, the positions of the movable drum pieces 72 to 76 indicated by solid lines indicate the state of the maximum diameter, and the one-dot chain line indicates the state of the minimum diameter.

<< Third Embodiment >> In each of the above embodiments, the movable drum pieces 14, 73, 74, and 75 other than the movable drum piece on the drive side are provided for following movement. It is of the type without a piece. That is, as shown in FIG. 8, two movable drum pieces 92 and 93 are provided, and these movable drum pieces are connected by bolts B in the same manner as in each of the above-described embodiments. All you have to do is move them away from you. In the case of the third embodiment, it is only necessary to form guide grooves in the drum base on which these movable drum pieces are mounted, and the link mechanism as used in the first and second embodiments is required. Disappears.

 In FIG. 8, reference numeral 91 denotes a fixed drum piece.

<< Fourth Embodiment >> In the third embodiment, the number of the fixed drum pieces 91 is one. However, the present invention is not limited to this. As shown in FIG. And the movable drum pieces 97 and 98 may be arranged on both left and right sides. Also in the case of the fourth embodiment, it is the same that the movable drum pieces 97 and 98 are separated and approached by the rotation of the bolt B as in the above-described embodiments to change the winding diameter.
The description of the driving mechanism is omitted.

It should be noted that such a type using a pair of upper and lower fixed drums can be applied to a type using a driven-side movable drum piece other than the drive-side movable drum piece as in the first and second embodiments. Needless to say, In this case, it is only necessary to change the extending direction of the link connecting each movable drum piece and the guide groove formed in the drum base.

<< Other Embodiments >> In the winding diameter change in each of the above embodiments, a movable drum piece is moved while sliding on a drum base, but the present invention is limited to such a form. Instead, for example, a so-called jack type as disclosed in Japanese Patent Application Laid-Open No. 60-28550 can be used to change the winding diameter by separating and approaching the drum outer peripheral elements. That is, in Japanese Unexamined Patent Publication No. 60-28550, the feed nut is moved forward and backward by rotating the front end of a jack bolt (feed screw) extending in the axial direction of the length measuring storage drum, The radial dimension of the drum outer peripheral element operatively connected to the feed nut is changed. When the present invention is applied, the jack bolt may be provided with an operating portion on the side of the jack bolt crossing (orthogonal) direction by a transmission mechanism such as a bevel gear mechanism or a worm-worm gear mechanism.

<< Effects of the Invention >> According to this invention, since the operating mechanism for changing the winding diameter by relatively moving and separating the movable drum pieces is provided on the side of the length measurement storage drum, There is no need to secure a space for this, and it is structurally compact. Further, since a dedicated motor or the like is not required for the change work, the structure is simplified. Further, since there is no need to operate the screws and the like from the front side of the drum, there is no need to attach and detach the balloon breaker, which simplifies the operation. Further, since the adjustment is performed not by a manual operation but by a screw, the adjustment accuracy is improved.

For example, if the vertical width is 190 cm and the drum diameter is 12 cm,
Let's say you want to change it by cm (actually the amount of change is generally smaller). The number of turns of the drum is 190 / (12Π), which is about 5 winds. Then the change in drum diameter is (1/5)
/ Π is approximately 0.06cm. When such a change is required by 0.06 cm, it is considerably more difficult to perform the manual adjustment as in the prior art, as compared with providing the change with a screw as in the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view showing a first embodiment of the present invention. FIG. 2 is a front view showing the internal mechanism. FIG. 3 is a front view for explaining the internal mechanism and operation. FIG. 4 is a front view for explaining the internal mechanism and operation. FIG. 5 is a front view showing a second embodiment of the present invention. FIG. 6 is a front view showing the internal mechanism. FIG. 7 is a front view showing the internal mechanism. FIG. 8 is a front view showing a third embodiment of the present invention. FIG. 9 is a front view showing a fourth embodiment of the present invention.

Claims (1)

(57) [Scope of request for utility model registration] 1. A length-measuring storage drum comprising at least one fixed drum and a plurality of movable drum pieces which are arranged in parallel with each other in the circumferential direction and are movable in diverging and converging directions. A drum base is provided facing the length-measuring storage drum, and a predetermined number of pins attached to the movable drum piece are engaged with corresponding guide grooves formed in the drum base. A pair of movable drum pieces at the inner axis symmetric position of the drum piece are screwed with an adjusting bolt inserted in a diametrical direction from the peripheral surface of the length measuring storage drum. The movable drum pieces are linked to the pair of movable drum pieces via a link, and when the adjustment bolt is rotated by operation from the circumferential surface of the length measuring storage drum, the movable drum pieces are separated from each other and approached. Weft length storage device