JPH11200196A - Drum-diameter setting apparatus of weft measuring and storing apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate the work for setting the diameter of a drum composed of individual length-measuring drum pieces. SOLUTION: This setting apparatus is provided with a 1st cam 13 for simultaneously driving length-measuring drum pieces 11 in radial direction, a 2nd cam 23 for simultaneously driving feeding drum pieces 21 in radial direction, magnets 41, 42 interlocking the 1st and the 2nd cams 13, 23 and a driving gear 31, for rotating the 2nd cam 23. When the 2nd cam 23 is rotated via the driving gear 31, the 1st cam 13 is driven to simultaneously shift the length-measuring drum pieces 11 and the feeding drum pieces 21.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a weft length measuring and storing device for a weaving machine having a yarn feeding mechanism, which can quickly and accurately set a drum diameter for determining a measured length of a weft. And to a drum diameter setting device.

[0002]

2. Description of the Related Art It is known that a stationary drum type weft length measuring and storing device incorporates a yarn feed mechanism in order to arrange wefts wound on a drum at a constant pitch (for example, Japanese Patent Application Laid-Open No. Hei 7-133552). ).

The drum of this type is constructed by combining a plurality of length measuring drum pieces arranged in a cylindrical shape and a plurality of feed drum pieces having feed blades driven by eccentric inclined shafts. The long drum piece is screwed to the drum piece holder at a radial position where a predetermined drum diameter is obtained, and each feed drum piece is screwed to another drum piece holder mounted on the eccentric inclined shaft. . Therefore, in this method, the length of each weft yarn is measured by adjusting and fixing each length measuring drum piece to a predetermined position, and fixing each feed drum piece in accordance with the position of each length measuring drum piece. The quantity can be set. In addition, each feed drum piece is inclined to the front locking pin side while projecting the feed blade from the thread winding surface of the length measuring drum piece through the eccentric inclined shaft to advance the weft on the yarn winding face, and to feed. By lowering the blades below the yarn winding surface and tilting to the rear rotating yarn guide side and returning to the original position, the wefts on the drum are sequentially sent forward and arranged at predetermined yarn pitches, Good unwinding performance can be obtained.

[0004]

According to the prior art, since a plurality of length measuring drum pieces and feed drum pieces must be individually moved and adjusted when changing the diameter of the drum, the setting operation is extremely complicated. Not only is there a variation in the position of each measuring drum piece and feed drum piece,
There is a possibility that a predetermined length measurement or a thread pitch may not be obtained, and there is a problem that the correction work is extremely troublesome. Each feed drum must be fixed in the correct relative positional relationship to the length measuring drum, and if it is not correct, the yarn feed amount will be different and the yarn pitch will fluctuate. When the fluff of the weft is entangled, the unwinding resistance tends to increase.

Accordingly, an object of the present invention is to provide a first cam for driving a length measuring drum piece in view of the problems of the prior art.
By providing an interlocking mechanism for interlocking a second cam for driving a feed drum piece, a drum diameter setting device for a weft length measuring and storing device capable of performing a drum diameter setting operation quickly and accurately is provided. It is in.

[0006]

In order to achieve the above object, the present invention provides a first cam which is capable of simultaneously driving a plurality of length measuring drum pieces in a radial direction and locking the length measuring drum pieces. A second cam capable of simultaneously driving a plurality of feed drum pieces in the radial direction and locking the feed drum pieces, a drive mechanism for rotating one of the first and second cams, and a first and second cam. The gist is to provide an interlocking mechanism for interlocking the cams.

The first cam engages with an engaging pin of each length measuring drum piece via a spiral groove, and the second cam engages with each feed drum piece via a spiral groove. The engagement pin can be engaged.

The drive mechanism may include a drive gear connected to one of the first and second cams, and may include a handle attached to one of the first and second cams.

The interlocking mechanism can include a magnet for connecting the first and second cams, and the magnet can be attached to both the first and second cams.

[0010] The interlocking mechanism may include a ring member for connecting the first and second cams, and includes a connecting pin attached to one of the first and second cams and engageable with the other. You may.

[0011]

According to the structure of the present invention, the first cam drives a plurality of length measuring drum pieces simultaneously in the radial direction,
Drives a plurality of feed drum pieces simultaneously in the radial direction, and both are connected via an interlocking mechanism. Therefore, the interlocking mechanism can simultaneously rotate the first and second cams by the same angle by rotating one of the first and second cams via the driving mechanism, and thus the plurality of length measuring drums can be rotated. In addition to moving all the pieces and the plurality of feed drum pieces simultaneously in the radial direction, the relative positional relationship between the length measuring drum pieces and the relative positional relationship between the length measuring drum pieces and the feed drum piece can be kept constant. . That is, each length measuring drum piece can realize a predetermined length measurement amount, and each feed drum piece can accurately feed a yarn to achieve a predetermined yarn pitch.

When engaging the engaging pin of each length measuring drum piece with the spiral groove of the first cam and engaging the engaging pin of each feed drum piece with the spiral groove of the second cam. Are the first and second
Can drive the measuring drum piece and the feed drum piece simultaneously in the radial direction by the amount of the lead of the spiral groove corresponding to each rotation amount, and completely prevent the variation of each movement amount. be able to.

The drive mechanism includes a drive gear connected to one of the first and second cams, so that the drive gear is rotated to simultaneously drive the length measuring drum piece and the feed drum piece in the radial direction. In addition, the amount of rotation of the first and second cams can be finely adjusted to more accurately set the length measurement of the weft.

A drive mechanism having a handle attached to one of the first and second cams does not require a special tool when operating it, and can improve operability and workability.

An interlocking mechanism having a magnet releases the locks of the first and second cams via the magnets and automatically connects them at the same time, so that the first and second cams can be connected without any special operation.
Can be accurately linked, and there is no risk that the relative positional relationship between the length measuring drum piece and the feed drum piece is inadvertently shifted.

If magnets are provided on both the first and second cams, the magnets can attract each other to increase the coupling force, and the first and second cams can be linked more accurately. be able to.

The interlocking mechanism including the ring member can securely and mechanically connect the first and second cams via the ring member. However, it is assumed that the ring member is mounted on one of the first and second cams during operation other than during the adjustment. In addition, the ring material, in order to obtain an appropriate mounting force,
A part may be cut out and formed to be radially contractible,
It may be formed of an elastic material such as rubber that contracts in the radial direction. Further, the ring material is provided for the first and second cams.
Attached via anti-slip means such as gears and splines,
It may be connected via it.

Since the interlocking mechanism has the connecting pin, the first and second cams can be interlocked via the connecting pin. The connecting pins are, for example, first and second.
May be erected on a piece of hinge attached to one of the cams,
It is also possible to use a bolt type that stands on one of the first and second cams.

[0019]

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

The device for setting the diameter of the drum in the weft length measuring and storing device comprises a first cam 13 for driving the length measuring drum pieces 11, 11... At the same time in the radial direction and a feed drum piece 21, 21. A second cam 23 that is driven at once, and a driving gear 3
, 42, 42 and a drive mechanism including
(FIGS. 1 and 2).

The weft length measuring and storing device is driven by a rotating shaft 62. The rotating shaft 62 is incorporated in a casing 61 fixed to a machine base (not shown), and is connected to a motor (not shown). On the rotating shaft 62, a rotating yarn guide 64 is projected obliquely.
2. The rotating yarn guide 64 is formed with a weft guiding passage 64a for guiding the weft Y from a yarn supplying body (not shown). However, FIG. 2 shows only a part of the weft guide passage 64a. The rotating shaft 62 has a bearing 6
A drum holder 63 is rotatably supported via 2a and 62a.
A space 65 that allows the rotation of the rotating yarn guide 64 is formed around the entire circumference.

The magnets 63 a and 6 on the drum holder 63 side are provided on the opposing surface of the drum holder 63 and the casing 61.
3a, magnets 61a, 61a on the casing 61 side
... are buried facing each other. Therefore, the drum holder 63 includes magnets 61a, 61a,.
Attract each other, the stationary state can be maintained even when the rotating shaft 62 and the rotating yarn guide 64 rotate.

At the tip of the rotating shaft 62, a stop plate 25c,
The stepped sleeve 25 is mounted via a set screw 25d, and the bearings 62a, 62a
5, are positioned via the collar 62c and the end plate 62b. An eccentric inclined shaft 25a is formed at the distal end of the sleeve 25, and an axis C of the eccentric inclined shaft 25a is formed.
1 is eccentric with respect to the axis C of the rotating shaft 62 in the direction perpendicular to the plane of the paper of FIG. 2 by the amount of eccentricity δ, and is inclined by the inclination angle θ in the direction parallel to the plane of the paper. The eccentric inclined shaft 25
The inclined sleeve 26 is mounted on a through a bearing 25b.

A disk-shaped drum piece holder 12 is mounted on the front surface of the drum holder 63. On the front surface of the drum piece holder 12, guide grooves 12a are formed in a cross shape, and a boss 12b is formed in the center. A guide block 11a of the length measuring drum piece 11 is slidably engaged with each guide groove 12a in the radial direction.

Each length measuring drum piece 11 forms a conical inclined surface 11c at the rear of an arc-shaped yarn winding surface 11b (FIGS. 1 and 3A), and has an inward guide block 11a at the rear end. It is formed upright. The yarn winding surface 11b
Has a plurality of elongated holes 11e, 11e extending over the inclined surface 11c.
Are formed in the front-rear direction, and the guide block 11a
Have a plurality of engaging pins 11d, 11d,...

The first cam 13 is a cylindrical member which is rotatably fitted to the boss 12b of the drum piece holder 12 (FIGS. 1 and 2). A plurality of magnets 41 are embedded in the front end face of the first cam 13, and the engaging pins 11 d of the respective length measuring drum pieces 11 are embedded in the rear end face.
Are formed (FIGS. 1 and 3B). The inner peripheral surface of the first cam 13 has a groove 13 so as to be located in front of the boss 12b.
The flange 13c of the split fixing ring 14 is housed in the groove 13c (FIGS. 1 and 2).

A bolt 2 is provided on the front end face of the inclined sleeve 26.
The disk-shaped drum piece holder 22 is screwed via 6a and 26a. On the rear surface of the drum piece holder 22, guide grooves 22a are formed in a cross shape. Each guide groove 22a has a guide block 21 of the feed drum piece 21.
a is slidably engaged in the radial direction.

Each feed drum piece 21 has a length measuring drum piece 11
It has a smaller-diameter arc surface 21b (see FIGS. 1 and 3).
(C)), four plate-like feed blades 2 are provided on the arc surface 21b.
1e, 21e ... stand in the front-back direction. Each feed drum piece 21 is arranged inside the length measuring drum piece 11, and the former feed blades 21e, 21e.
Can protrude to the latter yarn winding surface 11b via 1e, 11e. At the front end of the arcuate surface 21b, a guide block 21a is provided to stand inward, and a plurality of engaging pins 21d, 21d,...

The second cam 23 is composed of feed drum pieces 21 and 2
At the rear of 1 ... two fixed rings 24, 24
And is supported by the inclined sleeve 26 (FIGS. 1 and 2). The fixing rings 24, 24
The groove 23c is formed in the inner peripheral surface of the sleeve.
Are positioned via However, fixing ring 2
4 and 24 have an appropriate clearance with respect to the inclined sleeve 26 and the groove 23c, so that the second cam 23 fixes the bolts 22c and 22c for fixing the fixing rings 24 and 24 and the drum piece holder 22. When the bolts 26a, 26a are loosened, they can be moved relative to the inclined sleeve 26 while being appropriately inclined.

On the front end face of the second cam 23, spiral grooves 23a, 23a,... With which the engaging pins 21d, 21d.
(D)). A plurality of magnets 42, 42,... Are embedded in the rear end surface of the second cam 23 so as to face the magnets 41, 41,.
, 42, 42... Are arranged with polarities that attract each other. Further, a gear 23b is formed on the outer periphery of the second cam 23, and a small-diameter drive gear 31 meshes with the gear 23b. The rotation pin 31 a attached to the drive gear 31 is located on the front surface of the drum piece holder 22.
It is prevented from coming off via a ring 31c with a set screw 31b.

The fixing rings 14, 14 are fixed via bolts 12c which are screwed into bosses 12b of the drum piece holder 12, respectively. The bolt 12c can penetrate the fixing ring 24 back and forth from the front of the drum piece holder 22 to fasten the fixing ring 14 to the boss 12b. At this time, the first cam 13 is connected to the boss 12b via the fixing rings 14 and 14. , The length measuring drum pieces 11, 11... On the other hand, the fixing rings 24, 24 are screwed from the front surface of the drum piece holder 22 by bolts 22c, respectively. At this time, the second cam 23
Via the fixing rings 24, 24, the feed drum pieces 21, 21
... can be locked so that it cannot rotate.

A hole 11f for a locking pin 67 driven by a solenoid 67a is formed in the length measuring drum piece 11 located above the rotating shaft 62. Therefore, the rotating shaft 6
When the rotary yarn guide 64 is turned through the rotary yarn guide 2, the rotary yarn guide 64 is rotated by the weft Y from the weft guide passage 64a.
Can be wound on the yarn winding surface 11b of the length measuring drum pieces 11, 11,..., And the locking pin 67 advances into the hole 11f, so that the weft Y thus wound is unwound forward. By prohibiting the weft yarn Y and retreating from the hole 11f, the unwinding of the weft yarn Y can be permitted. At this time, the length measuring drum pieces 11, 11,... Remain stationary through the bearings 62a, 62a even when the rotating shaft 62 rotates due to the magnets 61a, 61a, 63a, 63a. And maintain
The feed drum pieces 21, 21 are also magnets 41, 41, 4,
Are attracted to each other so that the bearing 2
It is kept stationary via 5b. That is, the magnets 41, 41 ..., 42, 42 ... are the first and second cams 1
A rotation preventing mechanism for preventing the relative rotation of 3, 23 is formed.

On the other hand, the feed drum pieces 21, 21... Are integrated with the drum piece holder 22, the second cam 23, and the inclined sleeve 26 via bolts 22c, 22c and fixing rings 24, 24. 26 is the bearing 2
5b, it is attached to the eccentric inclined shaft 25a of the sleeve 25. The feed drum pieces 21, 21... Are rotated on the rotating shaft 6 based on the eccentric amount δ and the tilt angle θ of the eccentric
A predetermined yarn feeding motion can be performed for each rotation of the rotary yarn guide 64, that is, for each rotation of the rotary yarn guide 64.

That is, focusing on the feed blade 21e of the specific feed drum piece 21, the feed blade 21e is the first state (FIG. 4) where it is most inclined backward in the long hole 11e of the corresponding length measuring drum piece 11. From the solid line), it moves upward while tilting forward (in the direction of arrow K1 in the figure) to push up the weft Y on the yarn winding surface 11b of the length measuring drum 11 (the dashed line in the figure), and then forward. It descends while inclined (in the direction of arrow K2 in the figure, the dotted line in the figure), returns the weft Y to the yarn winding surface 11b, and sends the weft Y forward by one pitch. Thereafter, the feed blade 21e is inclined backward while descending (in the direction of arrow K3 in the figure, the two-dot chain line in the figure), and can return to the first position inclined backward most (arrow K4 in the figure). Direction, solid line in the figure).

The feed blade 21e at this time has a vertical stroke 2δ sandwiching the yarn winding surface 11b, and has a front and rear inclined stroke 2θ. Further, the maximum height h of the feed blade 21e projecting on the yarn winding surface 11b defines the pitch of the weft yarns Y arranged on the yarn winding surface 11b in this way. Therefore, each feed drum piece 2
No. 1 is arranged in a predetermined relative positional relationship in the radial direction so as to obtain a predetermined maximum height h with respect to the corresponding length measuring drum piece 11.

The yarn winding surface 1 of the length measuring drum pieces 11, 11,...
When the diameter of the drum formed by 1b, 11b, that is, the length measurement amount of the weft Y is changed, the following means is used.

First, the bolts 12c, 12c, 22c, 2
When 2c is loosened, the lock of the length measuring drum pieces 11, 11,... And the feeding drum pieces 21, 21,... By the first and second cams 13, 23 can be released (FIG. 5). Further, when the bolts 26a, 26a are loosened, the drum piece holder 22 becomes
The inclination angle θ of the eccentric inclination shaft 25a with respect to the inclination sleeve 26
By inclining considerably, it is possible to take a posture parallel to the drum piece holder 12, and the first and second cams 13, 23
By attracting the magnets 41, 41, 42, 42,... At this time, the first,
Each of the second cams 13 and 23 moves forward by the moving amount L1 and retreats by the moving amount L2. However, the second cam 23 can be retracted by the fixing rings 24, 24 being inclined with respect to the inclined sleeve 26 in the groove 23c.

Subsequently, when the driving gear 31 is rotated via the rotating pin 31a, the second cam 23 is
4 and 24, the second cam 23 simultaneously feeds the respective feed drum pieces 21 through the spiral grooves 23a, 23a... And the engagement pins 21d, 21d. (FIGS. 3D and 5).
At the same time, the rotation of the second cam 23 is controlled by the magnets 42, 42,.
Are transmitted to the first cam 13 via 41, 41,.
The cams 13 can simultaneously drive the length measuring drum pieces 11 in the radial direction of the drum piece holder 12 via the spiral grooves 13a, 13a... And the engaging pins 11d, 11d. B), FIG. 5).

However, at this time, each feed drum piece 21,
The movement direction and the movement amount of each length measuring drum piece 11 are the same direction and the same amount determined by the rotation direction and rotation angle of the second cam 23 by the drive gear 31, respectively.
Spiral groove 13 formed in first and second cams 13 and 23
, 23a, 23a... have helical directions opposite to each other, and the leads for the rotation angles of the first and second cams 13, 23 are the same.

As described above, the length measuring drum pieces 11, 1
When the positions of the feed drum pieces 21, 21 ... are set,
By tightening the bolts 12c, 12c, 22c, 22c, the length measuring drum pieces 11, 11,.
By locking 1, 21... And tightening the bolts 26a, 26a, the whole can be returned to the operating state.

In the above description, the first and second cams 1
Each of the spiral grooves 13a, 23a of 3, 3 is provided with an engaging pin 11d, 11d,.
With the engaging pins 21d, 21d,. Further, the number of the length measuring drum pieces 11 and the number of the feed drum pieces 21 may be an arbitrary number of two or more. further,
The number of feed blades 21e of each feed drum piece 21 and the number of elongated holes 11e of each length measuring drum piece 11 can also be set to arbitrary numbers other than those shown.

[0042]

[Other Embodiments] The magnets 41 are connected to the first cam 1.
Instead of 3, it may be embedded in the front end surface of the ring-shaped drive member 43 (FIG. 6).

A driving pin 43 is provided on the rear end face of the driving member 43.
a, and the drive pin 43a is connected to the first cam 1
3 is engaged with a radial groove 13d formed on the front end face of the third. The drive pin 43a and the groove 13d are connected to the drive member 4
3. Only one set may be provided between the first cams 13 or a plurality of sets may be provided. However, a plurality of grooves 13d, 13d
.. Are formed in the radial direction of the first cam 13.
The fixing rings 14 are accommodated in grooves 43 c formed on the inner peripheral surface of the driving member 43.

When the bolts 12c, 12c are loosened, the driving member 43 moves forward, so that the magnets 41, 41,.
2, 42... Adhere to each other (the same figure), and the first and second cams 13,
23 moves the first cam 13 to the second
Of the cam 23. That is, the driving pin 43a maintains the engagement state with the groove 13d even when the driving member 43 advances, and the interlocking mechanism at this time includes the driving in addition to the magnets 41, 41, 42, 42,. Member 43,
The driving pin 43a and the groove 13d are provided.

The first cam 13 is attached to the boss 12b of the drum piece holder 12 so as not to move back and forth (FIG. 7).
The second cam 23 and the drum piece holder 22 can be connected to the large diameter portion 26 e of the inclined sleeve 26 via the fixing ring 24.

The first cam 13 can lock the length measuring drum pieces 11, 11... By tightening a set screw 53. The second cam 23 is provided with a bolt 22
c can be locked and integrated with the drum piece holder 22 to lock the feed drum pieces 21, 21..., and by tightening a bolt 26b operable from the front side of the drum piece holder 22, the fixing ring 24 can be locked. Can be integrated with the inclined sleeve 26. However, the fixing ring 24 at this time is assumed to be continuous all around in a ring shape, and the bolts 22c and 26b in FIG.
It is assumed that an appropriate number is provided for each of the fixing rings 24.

When changing the drum diameter (FIG. 8), the set screw 53 is loosened to make the first cam 13 relatively rotatable.
By loosening the bolts 26b and 22c and retreating the second cam 23, the magnets 41, 41 ..., 42, 42 ... are brought into close contact with each other, and the second cam 23 is relatively rotatable.
The length measuring drum pieces 11, 11 ..., the feeding drum pieces 21, 21 ...
Release the lock. Note that the inner circumference of the second cam 23 is
The second cam 23 can be inclined with respect to the inclined sleeve 26 by an angle corresponding to the inclination angle θ of the eccentric inclined shaft 25 a with an appropriate clearance between the inclined cam 26 and the outer periphery of the large diameter portion 26 e. Further, in the inclined sleeve 26, it is preferable to reduce the axial thickness of the large-diameter portion 26e so that the second cam 23 is easily inclined.

The second cam 23 may also be attached to the inclined sleeve 26 immovably back and forth (FIG. 9).

The second cam 23 can lock the feed drum pieces 21, 21... By tightening together with the drum piece holder 22 the bolts 26f screwed into the large diameter portion 26e of the inclined sleeve 26. However,
FIG. 9 shows only one bolt 26f.
When changing the drum diameter (FIG. 10), each bolt 26f
Are slightly loosened to make the second cam 23 relatively rotatable, and the lock of the feed drum pieces 21, 21... Is released.

9 and 10, the inclined sleeve 26 has a plurality of magnets 51, 51 ... embedded in the inner surface of the boss 12b of the drum piece holder 12 and a rear portion of the inclined sleeve 26 opposed thereto. Buried magnets 52, 5
Are held stationary through 2...
.., 41, 41,..., Unless the second cam 23 rotates.
Are locked, and the length measuring drum pieces 11, 11,... Can be driven in the radial direction in conjunction with the rotation of the second cam 23.

That is, the magnets 41, 41,.
... form a rotation preventing mechanism for preventing the relative rotation of the first and second cams 13 and 23, and also form an interlocking mechanism for interlocking the two.

The second cam 23 has a bolt 26f,
When loosening 26f..., It may be rotated while being inclined with respect to the first cam 13, or may be inclined with respect to the inclined sleeve 26 and rotated in parallel with the first cam 13. However, the second cam 23 has bolts 26f, 26f
Are not approached to the first cam 13 even if they are loosened, and therefore the magnets 41, 41, 42, 42,.
Has a sufficiently strong magnetic force.

The interlocking mechanism for interlocking the first and second cams 13 and 23 may be constituted by a ring member 44 instead of the magnets 41, 41..., 42, 42.
Gears 44a having internal teeth are formed on the inner surface of the ring member 44. Gears 13e, 23 meshing with the gears 44a are provided on the front part of the first cam 13 and the rear part of the second cam 23, respectively.
d is formed. The ring member 44 is mounted on the first cam 13 during operation.

When changing the drum diameter (FIG. 12), each bolt 26f is slightly loosened, and the ring member 44 is moved to the front second position.
To the side of the cam 23 (in the direction of the arrow K6 in the figure), the gear 44a is engaged with both the gears 13e and 23d, the set screw 53 is loosened, and the first cam 13 is interlocked with the second cam 23. . 11 and 12, the magnets 51, 5
1, 52, 52, set screw 53, each bolt 26f
Form a rotation preventing mechanism for preventing the relative rotation of the first and second cams 13 and 23. Also, the ring material 44 is
During operation, it is only necessary to attach to one of the first and second cams 13 and 23 so that the first and second cams 13 and 23 can be linked when the drum diameter is changed.
a, 13e, and 23d may be replaced with keys, splines, and the like.

The ring member 44 may be a ring member 47 having a notch 47a (FIG. 13). Ring material 47
Can be resiliently attached to the outer circumferences of the first and second cams 13 and 23, and attached to one of the first and second cams 13 and 23 during operation, to reduce the diameter of the drum. At the time of change, both are attached in common and both are linked.

The interlocking mechanism may be constituted by a hinge 45 with a connecting pin 45a attached to the first cam 13 (FIG. 14). The connecting pin 45a is erected on one piece of the hinge 45 and is engaged with a concave portion 23e formed in the second cam 23 (solid line in the figure) to thereby form the first and second cams 13, 2
3 can be linked. The hinge 45 is disengaged from the concave portion 23e by rotating the connecting pin 45a side toward the first cam 13 side (K7 direction in the figure) during operation (two-dot chain line in the figure). ).

The interlocking mechanism may be constituted by a bolt-type connecting pin 46 erected on the first cam 13 (FIG. 15). The connecting pin 46 is connected to the second cam 23
(See the solid line in the figure)
The first and second cams 13 and 23 can be linked,
During operation, the interlock can be released (two-dot chain line in the figure) by removing the tip from the recess 23e (in the direction of arrow K8 in the figure). The connecting pin 46 is provided with a lock nut 46a.

In FIGS. 14 and 15, the hinge 45 and the connecting pin 46 are provided on the second cam 23 side, respectively.
3e may be formed on the first cam 13 side. Further, as for the combination of the hinge 45, the connecting pin 46, and the recess 23e, a plurality of sets may be provided in the circumferential direction of the first and second cams 13 and 23. Further, the connecting pins 45a and 46 are connected to the second cam 2
As long as the thread feed movement of the third is not hindered, it can be kept engaged with the recess 23e even during operation.

The driving mechanism including the driving gear 31 and the gear 23b may be a handle 32 attached to the second cam 23 (FIG. 16). However, FIG. 16 (B) shows X in FIG. 16 (A).
-It is an X-ray arrow sectional drawing. The handle 32 penetrates an arc-shaped long hole 22d formed in the drum piece holder 22. When changing the drum diameter, the handle 32 can be moved along the long hole 22d to rotate the second cam 23. .

In the above description, the drive gear 31 and the handle 32 may be engaged with gears formed on the first cam 13 instead of the second cam 23, respectively.
3 may be attached.

[0061]

As described above, according to the present invention, the first and second cams for simultaneously driving the length measuring drum and the feed drum in the radial direction, the interlocking mechanism, and the driving mechanism are provided. Thereby, the drive mechanism drives one of the first and second cams to rotate, and the interlocking mechanism can interlock the first and second cams. In addition, there is an excellent effect that the operation of setting the diameter of the drum can be extremely simplified by moving the drum accurately.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of the entire configuration.

FIG. 2 is an explanatory view of the overall configuration in longitudinal section.

FIG. 3 is an enlarged view of a main part of FIGS. 1 and 2;

FIG. 4 is an explanatory diagram of a basic operation.

FIG. 5 is an explanatory diagram of an operation.

FIG. 6 is a sectional view of a main part corresponding to FIG. 5, showing another embodiment.

FIG. 7 is a cross-sectional view (1) of a main part corresponding to FIG. 2, showing another embodiment.

FIG. 8 is an operation explanatory diagram of FIG. 7;

FIG. 9 is a sectional view (2) of a main part corresponding to FIG. 2, showing another embodiment.

FIG. 10 is a diagram illustrating the operation of FIG. 9;

FIG. 11 is a sectional view of a main part corresponding to FIG. 2 showing another embodiment (3).

FIG. 12 is an operation explanatory diagram of FIG. 11;

FIG. 13 is a perspective view of a ring material showing another embodiment.

FIG. 14 is an explanatory view (1) of a main part longitudinal section showing another embodiment.

FIG. 15 is an explanatory view (2) of a main part longitudinal section showing another embodiment.

FIG. 16 is an explanatory diagram of a main part configuration showing another embodiment.

[Explanation of symbols]

 11 ... length measuring drum piece 11d ... engaging pin 13 ... first cam 13a ... groove 21 ... feed drum piece 21d ... engaging pin 23 ... second cam 23a ... groove 31 ... drive gear 32 ... handles 41, 42 ... Magnets 44, 47: Ring material 45a, 46: Connecting pin

Claims (8)

[Claims] 1. A plurality of length measuring drum pieces are simultaneously driven in a radial direction, a first cam capable of locking the length measuring drum pieces, and a plurality of feed drum pieces are simultaneously driven in a radial direction. A weft comprising a second cam capable of locking a feed drum piece, a drive mechanism for rotating one of the first and second cams, and an interlocking mechanism for interlocking the first and second cams Drum diameter setting device in length measuring storage device. 2. The first cam engages with an engagement pin of each of the length measuring drum pieces through a spiral groove, and the second cam engages with each of the engagement pins through a spiral groove. 2. A drum diameter setting device in a weft length measuring and storing device according to claim 1, wherein the device is engaged with an engaging pin of a feed drum piece. 3. The weft length measuring and storing device according to claim 1, wherein the drive mechanism includes a drive gear connected to one of the first and second cams. Setting device. 4. The weft length measuring and storing device according to claim 1, wherein said drive mechanism includes a handle attached to one of said first and second cams. apparatus. 5. The weft length measuring and storing apparatus according to claim 1, wherein the interlocking mechanism includes a magnet for connecting the first and second cams. Setting device. 6. The device for setting the diameter of a drum in a weft length measuring and storing device according to claim 5, wherein the magnet is attached to both the first and second cams. 7. The apparatus according to claim 1, wherein the interlocking mechanism includes a ring member for connecting the first and second cams.
A drum diameter setting device in the weft length storage device according to any one of claims 4 to 4. 8. The interlocking mechanism according to claim 1, further comprising a connecting pin attached to one of the first and second cams and engageable with the other. Drum diameter setting device in the weft length measuring and storing device.