JP2777400B2 - Casting device for magnetic shuttle loom. - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a throwing device for a magnetic shuttle loom.
More particularly, the present invention relates to a throwing device that synchronizes and moves a shuttle along a raceway by moving magnetic means.

[Prior Art] As a conventional magnetic shuttle mechanism, for example, a warp feed mechanism for supplying a warp yarn, a heald frame mechanism for alternately opening the warp yarn, and a shuttle for projecting a weft yarn into the opening of the warp yarn A traveling unit for guiding the shuttle and running transversely into the opening of the warp yarn, a magnetic device for suctioning the shuttle, and a front band of the opening for filling the weft yarn inserted into the opening of the warp yarn. In a magnetic shuttle mechanism including a lead assembly for driving into a weaving shed, and a beating mechanism for reciprocating the lead assembly, the traveling unit includes a pair of parallel traveling units, and a pair of parallel traveling units. An endless loop is formed by a curved portion connecting both ends of the horizontal traveling portion, and a cut corresponding to the opening is formed in the horizontal traveling portion. A notch is formed, and the magnetic device is moved along the running part, so that an endlessly rotating magnetic force can be generated, whereby the shuttle can be suction-guided and endlessly rotated. (U.S. Pat.Nos. 4,762,153, 4,529,016, 2,630,832)
No. 9).

[Problems to be Solved by the Invention] In such a magnetic shuttle loom, the throwing operation cannot be accurately controlled unless the shuttle is run in synchronization with the moving magnetic means accurately. Attention is paid to the magnetic force of the means. However, increasing the magnetic force increases the cost of the magnetic means and increases manufacturing difficulties. Further, at the time of starting, a torque is generated between the magnetic means and the shuttle due to inertial resistance, thereby further increasing the difficulty of synchronous operation. Attention must also be paid to the difference in inertial force generated during movement due to its own weight. Otherwise, when the magnetic means is braked and stopped,
The shuttle escapes from the suction of the magnetic means by inertia,
Not only may the loom fail or be damaged, but also the operator may be hurt. The higher the speed, the greater the inertial force associated with the speed. Therefore, the throwing speed of the conventional magnetic shuttle loom as described above is limited and cannot be improved easily, so that the operating efficiency of the loom cannot be improved.

In view of the above-mentioned drawbacks of the prior art, an object of the present invention is to provide a throwing device for a magnetic shuttle loom that can reliably run a shuttle in synchronization with moving magnetic means without increasing magnetic force. I do.

Means for Solving the Problems In order to achieve the above object, the present invention provides a sleigh for holding a lead assembly, a raceway formed on an upper surface of the sley, and a structure along the raceway. A throwing device comprising magnetic means capable of generating moving magnetism, and a shuttle attracted by the moving magnetism of the magnetic means and capable of traveling along the raceway, wherein
A gap is provided along the raceway, a locking hole is formed in the shuttle, and the magnetic means can be locked with the locking hole through the gap each time the throwing operation is completed. The stopping means is provided to be extendable and contractible.

[Operation] The magnetic shuttle loom of the throwing apparatus not only moves the shuttle by the magnetic force of the magnetic means during the throwing operation, but also stops the movement after the throwing operation is completed and stops the movement. During the time when the engine is started in the opposite direction after being reversed from the stop, the shuttle can be locked by the locking means, and the shuttle can be integrally engaged with the magnetic means.

The above and other objects, features and advantages of the present invention will become more apparent from the following detailed description of embodiments with reference to the drawings.

[Embodiment] Fig. 1 is a partial perspective view of an embodiment of a throwing apparatus in a magnetic shuttle loom according to the present invention. As shown in FIG. 1, this embodiment mainly includes a sley (2) for holding a lead assembly (1) and a raceway (20) formed on the upper surface of the sley (2).
Magnetic means (3) capable of generating magnetism moving along the raceway (20); and magnetic means (3)
A shuttle (4) that can be attracted by the moving magnetism of the vehicle and run along the raceway (20);
0) provided at both ends. The sleigh (2) is connected to a swing arm of a conventional beating mechanism (not shown) via a link (21), so that the sleigh (2) is driven by the beating mechanism and swings back and forth together with the lead assembly (1). A beating operation can be performed. In FIG. 1, the slab (2) has a gap (22) on the upper surface,
The beam structure of the sley (2) is constituted by a plurality of beam structures arranged at predetermined intervals in a portion corresponding to the lead assembly (1).
The upper end surface forms a concave portion (25) in which projections (23) which are flush with the upper surface of the sley (2) are regularly arranged. The raceway (20) includes an upper surface of the sley (2) and the end faces of the plurality of projections.

The shuttle (4) is provided with a through hole (41) that penetrates up and down substantially at the center thereof, and the wing pieces (42) are provided on both sides along the longitudinal direction. The shuttle (4) can be supported between the parallel facing beam structures of the sley (2) such that the through hole (41) faces the gap (22). Hooks (43) are provided at both ends in the longitudinal direction of the shuttle (4) for hooking a weft and performing a throwing operation.

Next, referring to FIG. 2, the magnetic means (3) is configured to be able to reciprocate the moving magnetism to the raceway (20). Specifically, the magnetic means (3) can rotate the endless rope (31), the magnetic body (32) fixed at an appropriate position on the endless rope (31), and the endless rope (31). In addition, a pair of pulleys (3) pulling along the lower side of the raceway (20)
3) and the endless rope (3
Rotate 1) clockwise or counterclockwise to adjust the magnetic material (3
A transmission mechanism (6) configured to be able to reciprocate 2) along the underside of the raceway, and repeatedly reciprocating from clockwise to counterclockwise and also from counterclockwise to clockwise. A tensioner (34) provided between the transmission mechanism (6) and the pair of pulleys (33) in order to keep the rotating endless rope (31) in a tensioned state at all times.
Consists of Thereby, while the loom performs the throwing operation, the transmission mechanism (6) moves the endless rope (31) from the clockwise to the counterclockwise through the puller (34) and the pulley (33). Then, the magnetic body (32) is rotated back and forth repeatedly from the counterclockwise to the clockwise, and the raceway (2) is rotated.
Since the shuttle (4) can be reciprocated along the lower side, the shuttle (4) can be sucked and reciprocated along the raceway (20).

The magnetic structure of the shuttle (4) and the magnetic body (32) in the present invention is the same as that of the prior art. For example, in the part of the shuttle (4), a plurality of magnets are arranged so that adjacent magnetic poles are different, and the magnetic body (32) corresponds to the magnetic pole of the shuttle (4). The magnets are arranged such that the magnetic poles to be formed have different polarities.
These magnets have a magnetic strength capable of effectively attracting and moving the shuttle (4).

As shown in the drawing, the sleigh (2) has a slight distance for guiding the magnetic body (32) at a predetermined distance from the shuttle (4) along the locus of moving magnetism, corresponding to the throwing motion. A lower portion (241), a slightly higher portion (242) provided on both sides of the slightly lower portion (241), and an inclination connecting the slightly lower portion (241) and the slightly higher portion (242). A guide groove (24) including a portion (243) is formed.

Referring also to FIG. 3, the magnetic material (32) is a sley (2).
However, since there is no magnetic body between them and a gap (22) is formed, the magnetic force lines coming out of the N pole of each of the opposed magnetic poles Is
It directly enters the opposing south pole without being sucked. In other words, the magnetic body (32) can use the magnetic force of the magnetic body (32) to the maximum extent to attract the shuttle (4). Therefore, the required magnetic force for attracting the shuttle (4) can be greatly reduced. A vertical hole (321) (see FIG. 4) corresponding to the hole (41) of the shuttle (4) is formed in the magnetic body (32). A guide tube (322) communicating with the through hole (321) is provided downward, and also the guide groove (24) of the guide tube (322).
An elongated hole (323) is formed along the axial direction at a position substantially corresponding to. A locking rod (324) is slidably provided in a channel formed by the through hole (321) and the guide tube (322), and the elongated hole (323) is provided in the locking rod (324). Is provided, and a guide roller (326) rotatably mounted in the guide groove (24) is provided at an end of the pin (325). The roller (326) moves the locking rod (324) while moving along the guide groove (24) according to the movement of the magnetic body (32).
As the height of the guide groove (24) changes, the through hole (32
1) and the guide tube (322) are extended and retracted along the channel. Except during the throwing operation, the shuttle (4) travels after the throwing operation is completed. Stop once, move again in the opposite direction,
Until the throwing operation is started, the shuttle (4) can be engaged with the magnetic body (32) integrally by engaging with the through hole (41).

Referring to FIG. 4, the shuttle (4) is released from the locking relationship during the throwing operation,
As described above, the magnetic material (32) is attracted and moved by the magnetic force, and crosses the openings formed by the warp yarns (80) and (81) of the upper and lower layers along the raceway (20). As shown in FIG. 4, since the lower warp (81) passes through the gap between the plurality of projections (23), the warp (81) may be worn due to friction during the movement of the shuttle (4). There is no.

Next, looking back on FIGS. 1 and 2, the shock absorber (5) is provided on both sides of the raceway (20).
A fixed seat (51) is provided, and the fixed seat (51)
A stopper that slidably supports a rod (52) along the gap (22), and that a pad (55) made of a cushioning material is applied to opposing ends of the rod (52) and the rod (52). (Five
(3) is provided, and since the elastic means such as the compression spring (54) is provided between the stopper (53) and the fixed seat (51), the shuttle (4) stops from going forward. It can buffer and absorb the inertial force such as the start to the start and the return.

Next, the transmission (6) will be described with reference to FIGS.
Will be described. First, when FIG. 5 is combined with FIG. 1 and FIG. 2, the transmission (6) includes a pair of compensation pulleys (61) provided near the swing shaft (71) of the beating mechanism. ), A transmission (62) (a planetary gear type speed increaser in this embodiment) provided at an appropriate position on the loom frame, and an output shaft (620) fixed to the transmission (62). Rope pulley (6
3) and one end of the input plate (621) of the transmission (62)
And a link (64) whose other end is connected to a main rotating shaft (72) that can rotate intermittently by the operation of the loom. The link (64) is connected to the input plate (62).
Since both ends are eccentrically connected to the input plate (621) and the main rotating shaft (72), respectively, so that the 1) can be reciprocated within a predetermined range, the rope pulley is connected via the transmission (62). (63) is a predetermined speed (increased speed in this embodiment)
Can be intermittently reciprocated.

The rope (31) winds the rope pulley (63) by a small number of turns, then pulls out one end of the rope pulley (63), goes around one compensating pulley (61) as shown in FIG. After traversing the pair of pulleys (33) so as to cross (2), the pulley (34) and the other compensating pulley (61) are passed, and finally the rope (31) is connected to the rope pulley (63). Since the endless rope is connected to the end, it can be intermittently reciprocated by the rope pulley (63) while carrying the magnetic body (32). The shuttle (4) can be sucked and reciprocated along the raceway (20).

Similarly, referring to FIG. 5 continuously, during the beating operation, the main rotating shaft (72) is not rotated, so that the rope (31) is driven by the main rotating shaft (72) and does not travel. , The sleigh (2) swings with the vertical swing, so that the rope length fluctuates according to the change in the position. In order to eliminate this drawback, the compensation pulley (61) is provided. Since the compensating pulley (61) is provided at the eccentric position of the swing shaft (71) as shown in FIG. 5, when swinging, the axis changes its position according to the swing, and the rope pulley (63) ) Can be changed. Accordingly, the length of the rope (31) wound on the compensation pulley (61) also changes according to the swing, so that the length of the rope can be automatically compensated.

Looking back at FIGS. 1 and 2, the tensioner (3
4) a pair of tension pulleys (341) provided below the sleigh (2), and both ends thereof are respectively connected to the pair of tension pulleys (341) and provided between the pair of tension pulleys. And a stopper (343) provided outside the pair of tension pulleys (341). Since the rope (31) is passed between the tension pulley (341) and the tension pulley (341), an outward expanding force transmitted from the rope (31) applied to the tension pulley (341). Thereby, it is possible to urge the compression coil spring (342) with inward elastic resistance. Accordingly, when the rope (31) passing through any of the tension pulleys (341) is loosened, the expansion force of the rope on the corresponding tension pulley (341) decreases, and the tension pulley (341) is connected to the compression coil. It is pulled in by the spring (342) and moves inward,
This loosening can be eliminated and the rope (31) can always be kept in tension.

With continued reference to FIGS. 6 and 7, the transmission (6
The input plate (621) of 2) is provided at the tip of the input shaft (622), and the casing (623) of the transmission (62) is supported by the input shaft (622) by bearings. An inner gear (624) is formed on an inner surface of the input shaft (622) so as to mesh with the inner gear (624) and the sun gear (626). ) Is provided. Also, at the extension end of the sun gear (626), an internal gear (624)
Also, a plurality of planet gears (627) are provided so as to mesh with the output gear (628) provided at the end of the output shaft (620). The rope pulley (653) is fixed to the outer end of the output shaft (620), and the input shaft (622) and the sun gear (6) are fixed.
26) and the output shaft (620) are provided with bearings between them so that they can move independently, so the difference in the number of gears between the internal gear (624), the planetary gear (625) and the sun gear (626) And the sun gear (626) with the planet gear (625)
In addition, the output rotation can be pulled out from the input shaft side and increased to a predetermined speed by the gear transmission relationship such as driving the output gear (628) by the planetary gear (627).

[Effects of the Invention] As described above, the present invention provides a sleigh for holding a lead assembly, a raceway formed on the upper surface of the sley, and a method of generating moving magnetism along the raceway. And a shuttle capable of running along the raceway by being attracted by the moving magnetism of the magnetic means, wherein the sley is provided with a gap along the raceway, In addition to forming a locking hole in the magnetic means,
Each time the throwing operation is completed, a locking means that can be engaged with the locking hole through the gap is provided so as to be extendable and contractible, so that during the throwing operation, the shuttle is only run by attracting the magnetic means by magnetic force. In addition, when the movement is stopped after the throwing operation is completed and during the start of the movement in the opposite direction by reversing from the stop, the shuttle is locked by the locking means to integrally engage the magnetic means. In combination, the magnetic shuttle loom can be used to eliminate insufficient synchronization and derailment due to inertial force.

[Brief description of the drawings]

FIG. 1 is a partial perspective view of one embodiment of a throwing device in a magnetic shuttle loom of the present invention, FIG. 2 is a side view of the embodiment, and FIG. FIG. 4 is a diagram showing the relationship when the locking relationship shown in FIG. 3 is released. FIG. 5 is a diagram of the transmission mechanism of the embodiment, and FIG. FIG. 2 is a transmission mechanism of the embodiment, and FIG. 7 is a transmission mechanism of FIG. (Main symbols in drawings) (1): Lead assembly (2): Sleigh (20): Raceway (22): Clearance (24): Guide groove (241): Slightly lower part (242): Slightly higher part (243) ): Inclined part (3): Magnetic means (31): Endless rope (32): Magnetic body (324) Locking means (locking rod) (326): Guide roller (4): Shuttle (41): Lock Hole (5): Buffer (51): Fixed seat (52): Rod (53): Stopper (54): Elastic means (55): Buffer pad (6): Transmission mechanism

Continuation of the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) D03D 49/44 D03D 49/54

Claims (4)

(57) [Claims] 1. A sleigh (2) for holding a lead assembly (1), a raceway (20) formed on an upper surface of the sley (2), and a slashway along the raceway (20). A throwing device comprising: a magnetic means (3) capable of generating moving magnetism; and a shuttle (4) attracted by the moving magnetism of the magnetic means (3) and capable of traveling along the raceway (20). A gap (22) is provided in the sley (2) along the raceway (20), a locking hole (41) is formed in the shuttle (4), and the magnetic means (3) A throwing device for a magnetic shuttle loom, characterized in that a catching means (324) which can be extended and locked to the catching hole (41) every time the throwing operation is completed is provided in a stretchable manner. 2. A slightly lower portion (241) for guiding the magnetic means (3) to the sleigh (2) in accordance with a throwing operation along the moving locus of the moving magnetism, and both sides of the lower portion. A slightly higher portion (242) and an inclined portion (24) connecting the lower portion (241) and the higher portion (242).
3), and the locking means (324) is formed on the magnetic means (3) while moving along the guide groove (24) with the movement of the moving magnetism. 2. The throwing device for a magnetic shuttle loom according to claim 1, further comprising a guide roller (326) capable of expanding and contracting the roller. 3. The magnetic means (3) is constructed so that the moving magnet can reciprocate to the raceway (20), and the shuttle (4) stops or returns from the forward movement. A fixed seat (51) is provided on each side of the raceway (20) in order to buffer or absorb an inertial force such as a start to the movement, and the fixed seat (51) allows the clearance (2) to be formed.
A rod (52) is slidably supported along 2), and a stopper (53) provided with a buffer pad (55) is provided at opposite ends of the rod (52) and the rod (52). 2. The magnetic shuttle loom according to claim 1, wherein the shock absorber (5) is configured to provide an elastic means (54) between the stopper (53) and the fixed seat (51). Throwing equipment. 4. An endless rope (31) which can run by being pulled along a lower side of the raceway (20), and (II) an endless rope (31). And (III) when the loom performs a throwing operation, the endless rope (31) is run in two forward and reverse directions, and the magnetic body (32) is fixed. And a transmission mechanism (6) configured to be able to reciprocate along the lower side of the raceway (20). apparatus.