JPH01298244A - Wefting apparatus of loom wherein carrier runs in opposite direction simultaneously - Google Patents

Abstract

PURPOSE: To obtain a shuttleless loom not needing a wooden pipe and not limiting the kinds of raw yarns by disposing guide devices for vertically changing the travel tracks of carriers in both the side carrier boxes. CONSTITUTION: When pickers on both the sides are simultaneously subjected to picking works, two carriers simultaneously travel in the opposite directions. The carrier on one side travels on the lower side track to pick a weft, and the carrier on the other side simultaneously travels on the upper side track to return. Guide devices (fixed pieces 203, 251 and lifting pieces 202, 252) for changing the travel tracks of the carriers into the upper and lower tracks, respectively, are disposed in both the side carrier boxes. The lifting pieces are vertically moved with cams, and when the tracks of the carriers are changed, inclined guide surfaces are formed. While pulling a weft, the carrier for picking the weft proceeds into an opening through a weft cutter at the inlet of the opening. When the weft is carried out on the outside of the exit, the weft is separated from the carrier with rollers and simultaneously held with a holding device.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a weft insertion device for a loom, and in particular to a shirttleless loom that does not require a weft preparation process by easily modifying the weft insertion device of a shirttle loom. The present invention relates to a weft insertion device for a loom that can be made.

[Prior art and problems to be solved by the invention] In conventional shirttle looms, there is always a weft preparation process in which the weft is wound around a woodwind, which requires a lot of time and expense in the weft process, and also requires a lot of human labor. Not only that, but also during weaving, when replacing the woodwind, the machine must be stopped, which reduces production efficiency.Furthermore, the yarn wound around the bottom of the woodwind is usually broken. Shirt torqueless looms such as air jets, water jets, grippers, and rapiers have been developed to solve this problem. Torless looms are not only expensive, but also have many limitations on the types of yarn that can be woven.

The present invention solves these various problems and provides a shirt torqueless loom that does not require woodwinds, is inexpensive, and has no restrictions on the type of yarn.

[Means and effects for solving the problem] In the present invention, two carriers travel in opposite directions to insert and return weft yarns by simultaneous picking by pickers on both sides. In order to enable the carrier to move up and down, guide devices were installed in the carrier boxes on both sides to change the trajectory of the carrier up and down.

The carrier traveling to the left along the lower track pulls the weft thread, passes through the opening, inserts the weft thread, and enters the left-hand carrier box, whereupon the guiding device raises the carrier to the upper track and moves the weft thread to the upper track. Return by running to the right along the track. Once the carrier enters the right-hand carrier box, a guiding device lowers it to the lower track to wait for the next run.

Due to simultaneous picking by pickers on both sides, two carriers travel in opposite directions at the same time, but the carrier on the negative side travels on the lower track to insert the weft yarn, and the carrier on the other side travels on the upper track to return. .

The guide device for changing the trajectory of the carrier consists of a fixed piece and a lifting piece. The elevating piece can be raised and lowered by a cam placed on the frame.

When changing the trajectory of the carrier, an inclined guide surface is formed, and when the carrier is launched, it becomes a horizontal surface. Therefore, the impact, friction, and noise during the carrier's approach are minimized, and the trajectory is stabilized during launch.

In addition, the carrier that inserts the weft passes through the yarn feeding cutter at the entrance of the opening, pulls the weft and enters the opening, and when it passes through the opening and exits to the exit, the presser roller installed at the exit moves the weft At the same time as the weft is removed from the carrier, the holding device grips the weft.

Preferred embodiments of this invention are listed below, but the scope of this invention is not limited thereto.

1. Arrange the picking noses (103) on both sides to face each other, and place the left and right carrier boxes (201)
Attach the fixed pieces (203) (251) on which the lifting pieces (202) (252) are loosely installed to (250), and
209), an upper race (279) is provided on the left side lifting piece (202), the upper and lower screw rods (207) (212) and the operating port (215) are connected to the left side lifting piece (202), and the operating rod (215) is connected to the right side lifting piece (252).
256) and the operating port (265), and the frame (23
0) (273) on the support stand (231) (274),
Guide slope (232) (232°) (275) (2
A cam (233) formed with 75") facing each other.
(276), and a holding device (400) having a presser roller (412) and a yarn feed cutter (424) are connected to the lace (20).
9) A weft insertion device for a loom in which carriers arranged on the left and right run in opposite directions.

2. A long hole (204) is formed between the left side elevating piece (202) and the fixed piece (203), and a safety plate (205) is arranged at the front end of the elevating piece (202). A screw insert (207) is loosely installed in the upper screw tube (20B) attached to the lower surface, and the lower end of the screw insert (212) is bent outward so that the shaft rod (229) is connected to the sleigh sword. Pressing port (225) attached to (234) The operating port (215) is loosely inserted into (235), and both long grooves (219)
Screw the spiral pin (218) onto the bolt (221).
and the operating port (215), and a guide plate (255) with a curved surface (253) and a long groove (254) is attached to the right lifting piece (252). The short tube (285) loosely inserted into the spiral part (257)
A horizontal bar (259) of 25g is loosely installed on the lifting piece (252), a spring (281) is elastically installed on the short pipe (25g),
The body (264) is loosely installed at the lower end of the operating rod (25[i)
The shaft rod (268) of the operating port (265) is bent inward.
Press the pressure opening (269) (27) of the slay sword (234).
0) and guide inclined surface (232) (232°) (
275) (275') are symmetrically formed cams (
233) (276) to frame (231) (273
) The weft insertion device according to item 1, which is provided on the weft inserting device.

3. Guide slope (5) of cam (500) (500')
01) (501') are formed in the same direction, and a roller (504) is formed between the body (503) of the operating port (502).
2. The weft insertion device according to claim 1, characterized in that the weft insertion device is provided with a shaft.

4. A fixing piece (404) on which a resilient piece (415) is attached on a support base (403) in which a cutout (402) is formed.
, a supporting piece (40B), a fixed piece (404), and an operating rod that is thinner than the supporting piece (40B), cover with a lid (40g) with a cutout, and tighten the screw (409). , a long hole (410) is formed and a spiral tube (411) on one side.
Adjustment plate (413) into which the presser roller (412) is screwed
on the lid (40g), tighten the bolts (41, 4), install the spring (418) between the fixed piece (404) and the operating rod (405), and A weft insertion holding device for a loom, which is formed by screwing a safety plate (420) on which a guide portion (419) is formed.

5. Guide groove (302) (
303) and a hanging rod (303) exposed on the side of the body.
The bent rod (314) comes into elastic contact with 12), and the bent rod (314)
Wrap the iron wire (317) around the support rod (31B) protruding above, and let the bent end (318) protrude from the side of the body.
The operating rod (307) that comes into contact with the support roller (305) and the bending rod (314) are connected by tape (321), and the head portion (309) of the operating rod (307) is made to protrude from the upper surface of the body. The weft insertion device according to item 1.

[Example code] The present invention will be explained in detail below.

The present invention includes a picking device (100) that allows the left and right pickers to simultaneously pick twice per rotation of the bottom shaft, a carrier lifting guide device (200) that changes the running trajectory of the carrier up and down, and a weft thread that pulls the weft into the opening. A carrier (300) that travels to insert the weft and return again, and a weft holding device that holds the weft from the carrier at the appropriate time when the carrier pulls the weft and passes through the opening, and then releases the weft after beating. It is divided into devices (400).

The picking device (100) is configured as follows.

The bottom shaft (1
01), a picking cam (102) is installed as a shaft. A picking cam (102) has a picking cam (102) on both sides of its outer circumference.
A picking bowl (10) has cam noses (103) facing each other and is freely installed on a guide shaft (104).
5). A supporting piece (106) armored on the lower surface of the guide shaft (104) has a picking arm (108) attached with a picking band (107).
). The other end of the picking band (107) is connected to the side of the stick cap bracket (109).

The elevating and lowering guide device that changes the travel trajectory of the carrier is configured as follows. Left side carrier box (201
) A fixed piece (203) in which a lifting piece (202) is loosely installed.
will be established. The concave grooves formed in the fixed piece (203) and the lifting piece (202) are combined to form one vicker guide slot (20
4). A safety piece (205) was provided at the front end of the elevating piece (202).

Insert the upper screw (207) into the screw tube (206) armored on the lower surface of the lifting piece (202) and tighten the double nut (208).
) will be concluded. A screw insertion (212) loosely installed in the upper screw insertion (207) by a shaft pin (211) extends through the through hole (210) of the race (209), and this screw insertion is further connected to the roller (213). ) is mounted on both sides of the body (214)
The long hole (21B) of the operating port (215) is bent outward.
It is loosely inserted into. The screw pin (218) is screwed into the screw hole (217) of the operating port (215), and the end of the screw pin (218) is inserted into the long groove (21) recessed on the left and right sides of the bottom of the screw insertion (212).
9) Hold down slightly and tighten the double nuts.

A spring (222) is elastically installed between the screw insert (221) screwed into the screw insert (212) and the operating port (215), and the end of the screw insert (212) passing through the elongated hole (216) is Also tighten the double nuts (223).

The - side pressure holding port (225) in which the groove (224) is formed is attached to the slay sword, and the groove (225) of the other side pressure holding port (226) is
The bolt (228) passes through the pressing port (225) (22B) so that the bolt (27) and the groove (224) are in contact with each other.
conclude. The shaft (229) of the operating port (215) is loosely inserted between the grooves (224) and (227). A cam (233) is mounted on a support base (231) mounted on a frame (230) and is symmetrical with respect to both sides and has an inclined guide surface.
(233°) and when the sleigh sword (234) moves back and forth, the rollers on both sides of the operating port (215) (
213) (213') are inclined guide surfaces (232) (232
°).

An elevating piece (252) is loosely installed on a fixed piece (251) installed in the right carrier box (250). The elevating piece (252) is formed with a curved surface (253) and a guide piece (255) having a long groove (254) for the bumper. A horizontal bar (2) of a short pipe (258) loosely inserted into the spiral part (257) of the actuating rod (25B) is attached to the side of the elevating piece (252).
59). The horizontal bar (259) passes through a through hole (260) in the box back. The size of the through hole (280) is such that it does not interfere with the vertical movement of the horizontal bar (259). Place a spring (261) on the top of the short tube (25g), tighten the nut (2B2), and attach the short tube (25g).
A nut (263) was also fastened at the bottom.

In the right side operating port (285), the body (264) is bent inward, contrary to the case of the left side operating port (215), and the operating rod (25B) is inserted into the concave groove (288) with the shaft pin. It is set up as a play area.

There are rollers (287) (267) on both sides of the operating port (265).
°) is installed on the axis. The shaft rod (288) of the operating port (285)
) is attached to the pressure opening (269) provided on the slay sword (234).
) (270) is loosely inserted between the concave grooves (271) and (272). Support stand (274) placed on frame (273)
Above, inclined guide surfaces (275) that are symmetrical to each other and inclined (
Install the cam (276) (276°) with 275°). As in the case on the left side, when the sleigh sword (234) moves back and forth, the rollers (267) (267°) move up and down under the guidance of the inclined guide surfaces (275) (275').

On the front of the reed cap (277), there are many L-shaped bent pieces (
The upper race (279) formed in 27g) was attached.

The carrier (300) has, on the upper surface and outer surface of the body,
Each of them forms a guide groove (302) (303). A support roller (305) is pivotally installed on the - side of the working chamber (304) formed in the center of the body using a shaft pin (30B).

The curved inner surface (308) of the operating rod (307) is allowed to come into contact with the negative side surface of the support roller (305). Operating rod (
The head (309) of the guide groove (307) projects above the guide groove (302). A screw (31O) passing through the bottom of the working chamber (304)
), the fixing piece (311) and the latching rod (312) are fixed. The end of the latching rod (312) is exposed on the side of the body. The bending rod (314) comes into elastic contact with the internal inclined surface (312'') of the hanging rod (312) by the spring (313).The bending rod (314) is connected to the bottom of the working chamber (304) and the fixed piece A screw (315) passing through the bending rod (311) is loosely installed.On the rear end of the bending rod (314), a support rod (31
B) is provided protrudingly. A steel wire (317) is spread and fixed in the groove at the upper end of the support rod (31B). The bent end (318) of the iron wire (317) is loosely inserted into the hole (320) provided in the upper curved recess (319) of the guide groove (aOa) and projects to the outside. The operating rod (307) and the bending rod (314) are connected by a tape (321).

A long hole (4
01) is formed. In this elongated hole (401), the structure of the holding device (400) made up of a belt is as follows.

On the support base (403) on which the cutout (402) is formed,
9-shaped fixed piece (404) and thick fixed piece (404)
A slightly thinner D-shaped operating rod (405) and a supporting piece (40B) having the same thickness as the fixed piece (404) are attached at regular intervals. Cover the lid (408> with the cutout (407) formed thereon and tighten with the screw (409). The adjustment plate (413) is provided with a long hole (410), and the spiral tube ( A presser roller (412) is screwed into the adjustment plate (411).The adjustment plate (413) is installed on the lid (408), and the long hole (41°) of the adjustment plate (413) is inserted into the lid (411).
0g), fixing piece (404), and support stand (403)
is passed through and fastened through the Bolt (414).

The end of the elastic support piece (415) is screwed onto the outer surface of the fixed piece (404), and the curved part (418) of the elastic support piece (415)
is brought into elastic contact with the head (417) of the operating rod (405).

A spring (418) is provided between the fixed piece (404) and the operating rod (405). A throat-shaped safety piece (420) with a guide part (419') formed on the side of the support base (403)
) with a screw. A bolt head (421) is provided to protrude from the presto beam in front of the holding device (400), so that when the body moves forward, the bolt head (421) presses the operating rod (405) and rotates it. Inlet race (20
9'') was provided with a concave groove (422) and a normal yarn feeding cutter (424) with a yarn guide (423) attached.

In addition, (110) is the return spring, <111) is the stick, (235) is the iron piece, (23B) is the body, (
237) is a bicker, (v) is a warp, and (r) is a weft.

In the present invention configured in this way, the carrier (3
00) to the carrier boxes (201) (250) on both sides.
), and when the operating switch of the loom is turned on, the picking cams (102) mounted on both sides of the bottom shaft (101) are rotated.

Rotation of the picking cam (102) causes the stick (111) to perform a picking movement in the usual manner.

At this time, since the two picking noses (103) are arranged facing each other in the picking cams (102) on both sides, the sticks (ill) on both sides are rotated for each rotation of the bottom shaft (101). Two picking movements are possible simultaneously in opposite directions.

Due to the simultaneous picking movement of the sticks (111) on both sides, the carriers (300) (300'') seated in the carrier boxes (2Ql) (250) on both sides are simultaneously moved in opposite directions.
When the carrier (300) inserted into the carrier (250) moves to the left carrier box (201), the weft (4) held by the yarn feeding cutter (424) from the cheese through the yarn path (423) is transferred to the carrier (250). 300) hanging rod (
312) and the bent rod (314), and at the same time is hung on the bent end (318) of the iron wire (317),
A slope (4°) is formed and the weft is inserted into the opening together with the carrier (300).

The carrier (300) that has passed through the opening passes through the safety plate (42).
0), the carrier (300)
The holding device (4) entered along the side guide groove (319).
The holding piece (415) of 00) hangs the inclined part (4") of the weft, and the weft is held between the holding piece (415) and the operating rod (405). At the same time, the upper guide groove (302), the presser roller (412) enters along the carrier (300
) of the operating rod (307) protruding from the upper surface of the
09) and rotate the operating rod (307) clockwise. As a result, the tape (321) is attached to the bending rod (31).
4) Pull it to the left (in the direction of the arrow).

As a result, the bending rod (314) rotates counterclockwise around the screw (315), a gap is created between it and the latching rod (312), and the support rod (31B) also rotates counterclockwise around the screw (315). 314) in a counterclockwise direction, and the bent end (318) of the iron wire (317) enters into the body, so that the locking rod (312)
) and the weft yarn that is hung over the bent end (318) of the iron wire (317) leaves the carrier (300).

As a result, weft insertion of the weft yarn is completed, and after weft insertion is completed,
When the carrier (300) passes the holding device (400), the force pressing the actuating rod (307) is removed and the spring (
The bending rod (314) returns to its original position due to the elasticity of the bending rod (313), and accordingly, the operating rod (307) and the iron wire (317) also return to their original positions.

When the body moves forward and beats the weft while the weft is held by the holding device (400), the bolt head (421) protruding from the presto beam on the front of the loom,
The operating rod (
Push the rear end (417) of 405) and press the operating rod (405).
is formed slightly thinner than the fixed piece (404) and the support piece (406), and rotates freely between the support base (403) and the lid (408), so the rear end ( 417) is pressed, the operating rod <405) rotates clockwise, causing the elastic holding piece (415) and the operating rod (405) to rotate clockwise.
), the weft leaves the holding device (400), and the body moves backwards away from the bolt head (421), the elasticity of the compressed spring (41g) causes the operating rod to move again. It returns and makes elastic contact with the bullet holding piece.

When the left and right carriers (300) (300°) start traveling at the same time due to the simultaneous picking of both sticks (111), the sleigh sword (234) is moving backwards, and as it moves backwards, the guide slope (275) of the cam (276') ') raises the roller (267') on the - side of the operating port (285) and relatively lowers the roller (287) on the other side, so the operating port (265) comes from the right side and similarly (in the direction of the arrow), but since the body (264) is bent outward opposite to the right side, the screw insert (256) on the body (264) descends and attaches to the fixing piece (251). Since the floating lifting piece (252) is lowered, the lifting piece (252)
) will now tilt inward and upward. in this way,
The carrier (300) runs to the left in the opening on the lace (209) and inserts the weft yarn, and then rises to the height of the upper lace (279) and waits to return to the right side. The carrier (300'), which has passed through the upper race (279) and returned to the right side, descends on the race again and waits for the next weft insertion.

When the carrier (300) (300°) enters the carrier box (201) (250) and settles down, the sleigh sword (234) that is moving backward is reversed and moves forward again.

When the sleigh sword (234) moves forward, the right carrier
In the box (250), the other side roller (287') rises due to the action of the cam (276), and the operating port (265)
) inward (in the opposite direction of the arrow).

As a result, the operating rod (25B) lowers the elevating piece (252) so that its bottom surface becomes horizontal. At the same time, in the left carrier box (201), the cam (233) raises the other side roller (213°) and opens the operating port (215).
Since it rotates inward (in the opposite direction to the arrow), insert the screw (
212) raises the lifting piece (202) and makes it horizontal.

At this time, by simultaneously picking both sides (237) and (280) again, the right carrier box (250)
) carrier (aOO) is a horizontal lifting piece (25
2), the weft thread is pulled along the lower race, passes through the opening, runs to the left-hand carrier box (201), and the carrier (300 of the left-hand carrier box (201) ”), the trajectory is accurately guided by the horizontal lifting piece (202),
It passes through the upper race (279) and returns to the right carrier box (250).

When the carriers (300) (300°) of the left and right carrier boxes (201) (250) leave the carrier boxes (201) (250), the sleigh sword (
234) moves backward, and by the same action, the lifting piece (252) of the right carrier box (250) rises and inclines downward inwardly, so that by repeating the action of raising the incoming carrier (300), both sides Carrier (300) (30
0°) travels in opposite directions with different trajectories, the carriers that have inserted the weft and weft return simultaneously, and
Weaving with a loom is possible due to the continuous weft insertion action and return action by the two carriers (300) (300').

The weft yarn that has been inserted is cut by the yarn feeding cutter (424), the support piece, and the actuating roller by moving the race (209) forward and backward, as in the usual method.

In this way, since woodwinds are not used in the present invention,
Weaving is possible without the need for weft preparation work, which saves the time, cost and input required for weft preparation work, prevents a decrease in production efficiency due to woodwind replacement work, and eliminates threads left at the bottom of the woodwind and broken threads. It also has the effect of preventing wastage of yarn due to processing. Furthermore, such effects can be achieved by simply modifying the weft insertion device of the shirtless loom that is already purchased and in use, without purchasing and installing a conventional expensive shirttleless loom.

Even if a shirt torqueless loom equipped with the weft insertion device of the present invention is manufactured and supplied, it can be supplied at a lower cost than various conventional shirt torqueless looms, and it can be supplied at a lower cost than conventional shirt torqueless looms, and it can use more weft than conventional shirt torqueless looms. It is also possible to solve the problem of the limitation of weaving, and it has the effect that weaving is possible no matter what type of weft is used.

In addition, in the present invention, as shown in FIG.
500) (500') inclined guideway (501) (5
01') are formed to be inclined in the same direction, and the operating ports (5
One roller (504) is installed between the bodies (503) of the same shape as 02), and the inclined guide surface (501) (501°
), the same effect can be obtained.

In other words, when the sled sword moves forward, the left force, M(5
00) by the inclined guide surface (501) of the roller (504).
) is lowered, the operating port (502) is lowered, and the right side lifting piece (505) is lowered. On the other hand, when the sleigh sword moves backward, the guide slope (500') of the right cam (500')
As the roller (504) rises along the line 01'), the operating port (502) rises, raising the right side lifting piece (505). By repeating this action, the right side lifting piece (505)
to raise and lower. This is also installed on the left lifting piece. However, if the direction of inclination of the inclined guide surface of the cam is opposite to the right side, the left and right lifting pieces move up and down in opposite directions to guide the carrier, allowing the carrier to run safely and change its trajectory without strain.

[Effects] The present invention can provide a shirt torqueless loom that does not require a woodwind, is inexpensive, and has no restrictions on the type of yarn.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of the picking device of the present invention, FIG. 2 is a schematic front view of the lifting guide device of the present invention, FIG. 3 is a perspective view of the left carrier box portion, and FIG. 4 is a perspective view of the picking device of the present invention. , a perspective view of the right carrier box portion, FIG. 5 is a perspective view of the lifting guide device for the right lifting piece, and FIG. 6 is a partially sectional side view of the lifting guide device for the right lifting piece. Fig. 7 is an exploded perspective view of a portion where the left elevating piece is connected to a guide roller, Fig. 8 is a perspective view of an elevating guide device for the left elevating piece, and Fig. 9 is an elevating guide device with a cam. FIG. 10 is a perspective view of the carrier of the present invention, and FIG. 11 is a perspective view showing another embodiment of the present invention.
FIG. 12 is a partially exploded perspective view of the operating part of the carrier of the present invention; FIG. 12 is a diagram of the carrier of the present invention in use; FIG. 13 is a diagram of the holding device of the present invention in use; FIG. 14 is a diagram of the carrier of the present invention in use. FIG. 15, an exploded perspective view of the holding device, is a plan view of the holding device of the present invention in use. [Explanation of symbols] 103... Picking nose 201...
...Carrier box 202...Left side lifting piece 203...Fixing piece 207...Threaded rod 209...Race 212...Threaded rod 215...Operating port 230...Frame 231...Support stand 232...Guiding slope 232°...Guiding slope 233...・Bottom surface 250...Carrier box 251...
...Fixing piece 252...Right side lifting piece 256...Operating rod 265...Operating port 273...Frame 274...Support stand 275 ...Guiding slope 275°...Guiding slope 276...Cam 279...Upper race 400...Holding device 412...・Press roller 424...Cutter Fig. 1 5g Fig. 1! 1 jI '-26□・j ・□, -L- Figure 7 Figure 3 Figure 9 Figure 1Q Figure 1.1 Figure 72 Figure 1'q

Claims (1)

[Claims] 1. Arrange the picking noses (103) on both sides to face each other, and place the left and right carrier boxes (201)
Attach the fixed pieces (203) (251) on which the lifting pieces (202) (252) are loosely installed to the race (250), and
9) Place the upper race (279) on top and attach the left lifting piece (2
02), the upper and lower screw rods (207) (212) and the operating port (21
5), and connect the operating rod (256) to the right lifting piece (252).
) and the operating port (265), and the frame (230) (
Cams (233) and (276) having guide slopes (232), (232'), (275), and (275') facing each other are provided on the support stands (231) and (274) of the presser foot. Holding device (400) with rollers (412)
A weft insertion device for a loom in which a carrier including a yarn feeding cutter (424) and a yarn feeding cutter (424) arranged on the left and right sides of a lace (209) runs in opposite directions.