JPS6111171Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a spun yarn splicing device that performs splicing by injecting compressed fluid to the overlapped portion of two yarn ends.

Two yarn ends were inserted into the yarn splicing hole in an overlapping manner, and compressed fluid was injected into the overlapping portion to entangle and twist the fibers at each yarn end to form a single knotless yarn. There is a fluid piecing method for obtaining seams.

The applicant first clamped two yarn ends at a position a certain distance from the tip of each yarn end, and sucked the tip of the yarn ends into untwisting nozzle pipes provided on both sides of the yarn splicing hole. After untwisting, suck out the untwisted yarn ends remaining in the untwisting nozzle pipe,
We proposed a device that splices yarns by overlapping them in the yarn splicing hole and spraying compressed fluid.

The present invention is designed to be used in such a device when the yarn end on the bobbin side and the yarn end on the package cage side are inserted into the yarn joining hole, and the tip of the yarn end cut to a certain length from the clamp point is sucked into the untwisting nozzle pipe. In the yarn splicing hole area, the two yarn ends are brought close to or in contact with each other, and the tips of the yarn ends are separated from each other, so that each yarn end can be reliably sucked into the untwisting nozzle pipe dedicated to each yarn end. Embodiments of the present invention will be described below with reference to the drawings.

In FIGS. 1 and 2, the yarn splicing device 1 includes a yarn splicing block 2, a yarn pressing device 3, an untwisting nozzle pipe 4,
5, a thread shifting lever 6, thread cutting devices 7, 8, and clamp devices 9, 10.

The yarn splicing block 2 is screwed onto a bracket 12 via a plate 11 as shown in FIG. A slit 14 suitable for insertion is formed along the entire tangential direction of the yarn splicing hole 13, and a fluid jet nozzle 15 that opens tangentially to the inner circumferential surface of the yarn splicing hole 13 is provided.

Incidentally, positioning plates 16 are screwed onto both sides of the yarn splicing block 2 to position the overlapping yarn ends in the yarn splicing hole in cooperation with yarn presser levers 17 and 18. 19 is a fluid supply pipe to the jet nozzle hole 15.

Furthermore, the thread shifting lever 6 installed on the side of the thread splicing device is connected to the rod 20 by a control cam (not shown) or the like.
The upper and lower yarn shifting levers 22 and 23 simultaneously rotate to introduce the yarns YP and YB into the guide grooves 24 and 25, and slit the overlapped portion into the yarn splicing hole 13. Insert through 14.

Further, as shown in FIG. 2, the thread cutting devices 7 and 8 rotate the movable blades 28 with respect to the fixed blade 27 with the fixed pin 26 as a fulcrum so as to cross each other, cutting each thread YP and YB into a fixed length from the clamping point. disconnect.

Clamp devices 9 and 10 are installed outside the yarn cutting devices 7 and 8, and movable plates 31 and 32 corresponding to the fixed plates 29 and 30 rotate and come into contact with each other to clamp the yarn. That is, the bobbin side yarn end YB is clamped by the lower clamp device 9 of the yarn splicing block 2, and the package side yarn end YP is clamped by the upper clamp device 10.

Furthermore, guide blocks G1, G2 and a pair of guide blocks G3, G4 are fixed to the plate 11 fixed to the bracket 12, and untwisting nozzle pipe openings 4, 5 are bored therein. That is, in FIGS. 4 and 5, one guide block pair G1, G2 will be explained. A triangular prism-shaped separation guide block G1 is fixed perpendicularly to the plate 11, and the inclined surfaces 33a, 34 are fixed to the plate 11 from the top surface of the triangular prism.
a, the top side edge 35a is located approximately on the center line of the yarn splicing hole 13, and the guide block G2 provided on one side of the separation guide block G1 is located on the yarn splicing hole 1.
A guide surface 3 perpendicular to the plate 11 inclined toward the 3 side.
6a, and a guide surface 37 that is inclined toward the yarn splicing hole 13 and toward the plate 11 surface.
A thread passage gap S1 is formed by the guide surface 36a and the guide surface 38a perpendicular to the plate of the separation guide block G1.

Furthermore, an untwisting nozzle pipe opening 5 is formed on the other side of the guide block G1, and the center of the opening 5 is provided on a vertical line passing through the tip edge 39a of the guide block G3 facing the yarn splicing block 2. . Therefore, the suction action of the untwisting nozzle pipe 5 is blocked by the separation guide block G1, and the gap S1 is
The effect on threads passing through will be alleviated.

Further, the front surface 40a of the guide block G2 is connected to the plate 1 from the top side edge 35a of the guide block G1.
1 side and have different heights from the surface of the plate 11 to prevent the thread from jumping over the thread guided by the guide block G2 or the separation guide block G1.

Guide blocks G3 and G4 similar to the above are provided on the opposite side of the yarn splicing block 2, that is, at point-symmetrical positions, and the same members are given the same numbers, and the distinction between the upper guide block and the lower guide block is indicated by attached symbols a and b. has been done.

The yarn splicing operation in the yarn splicing device as described above will be explained next.

In FIG. 1, the yarn YP on the side of the package P is suctioned and held by the suction pipe 41 and pulled out from the package, and then rotated and moved forward to the guide 4.
2, 43, etc., and the package P and suction pipe 4 are positioned by the clamp device 10.
The thread between 1 and 2 is gripped. Similarly, the thread on the bobbin B side
YB is sucked and pulled out by another suction pipe 44, positioned in front of the yarn splicing device by the winding guides 42, 43, etc., and the yarn between the bobbin B and the suction pipe 44 is moved by the clamp device 9. is grasped. After this, the thread shifting lever 22,
Both thread ends are rotated clockwise in Figure 2 of 23.
YP and YB are inserted into the guide grooves 24 and 25, and the guide blocks G1, G2, and G3,
The slit 14 of the yarn splicing hole 113 is guided by G4.
It is inserted into the yarn splicing hole 13 through.

Subsequently, by operating the yarn cutting devices 7 and 8, both yarn ends YP and YB are cut to a constant length from the clamping point as shown in FIG. At the same time or around the same time as the cutting, the suction of the untwisting nozzle pipes 4 and 5 is started, and the tip YP1 of the cut yarn end YP on the package side is transferred to the pipe 4, and the tip YB1 of the yarn end YB on the bobbin side is transferred to the pipe 5. is attracted to. At this time, the yarn end YP is not subjected to the suction action of the nozzle pipe 5 by the guide block G1, and the yarn end YB is not subjected to the suction action of the nozzle pipe 4 by the guide block G3, so that each yarn end tip YP1 , YB1 are reliably sucked into each untwisting nozzle pipe 4, 5. At this time, the yarn shifting levers 22 and 23 turn in the direction away from the yarn, and the length of the yarn end sucked into the untwisting nozzle pipes 4 and 5 increases.

In the untwisting nozzle pipe 4, as shown in FIG.
The compressed fluid flow ejected from pipe 4
The inner yarn ends are untwisted and untwisted into a nearly parallel fiber bundle, making it suitable for splicing.

Both yarn ends YP due to the action of untwisting nozzle pipes 4 and 5
1. When the YB1 is untwisted, the suction action of the pipes 4 and 5 is stopped, and the thread pulling levers 22 and 23 are engaged with the thread end again and rotated at the same time or around the same time, and the stopper 46 is in the fixed position. The two yarn ends are pulled out from the untwisting nozzle pipes 4 and 5 by turning until they come into contact, and at the same time, by turning the yarn presser levers 17 and 18, the two yarn ends are set in the yarn splicing hole 13 in an overlapping state.

Under this condition, compressed fluid is injected into the splicing hole 13 to generate a swirling flow, and the loosened fibers are entangled and twisted to perform splicing.

Therefore, in Fig. 1, the package cage side thread end YP
is positioned in front of the yarn splicing device by the suction arm 41, the yarn end YP between the clamp device 10 and the suction arm 41 is moved toward the guide block G2.
A guide block G2 is provided so as to be located on the inclined surface 37a of the guide block G4, and similarly for the thread end YB on the bobbin side, the thread between the clamp device 9 and the suction arm 44 is provided so as to be located on the inclined surface 37b of the guide block G4. A guide block G4 is provided at the slanted surfaces 37a and 37b of the guide blocks G2 and G4, and by turning the thread shifting lever 6, both thread ends YP and YB are moved to the inclined surfaces 37a and 37b of the guide blocks G2 and G4.
The yarn ends are guided through the slit 14 of the splicing block 2 and inserted into the splicing hole 13 as shown in FIG. That is, as shown in Figure 6, the yarn end YP on the package side moves from the clamp point 47a to the guide groove 4.
8 and the gap S1 between guide blocks G1 and G2
through the yarn splicing hole 13 to the separation guide block G.
After passing through the untwisting nozzle pipe 4 side of 3, the yarn cutting device 7
leading to. Similarly, as shown in Figure 6, the bobbin side yarn end YB is passed from the clamp point 47b through the guide groove 49, the gap S2 between the guide blocks G3 and G4, and through the yarn splicing hole 13 to the untwisting nozzle of the separation guide block G1. It passes through the pipe 5 side and reaches the thread cutting device 8 .

Therefore, by operating the yarn cutting devices 7 and 8 in the state shown in FIG. 6 and applying suction from the untwisting nozzle pipes 4 and 5, the package side yarn ends are cut.
YP1 and the bobbin side yarn end YB1 are separated and sucked into the untwisting nozzle pipes 4 and 5, respectively.

As described above, in the present invention, on both sides of the yarn splicing block 2 having a yarn splicing hole, there is a separation guide having one apex on the center line of the yarn splicing hole 13 and a guide surface inclined in the left-right direction from the apex. Block G1, G3
An untwisting nozzle pipe opening is provided on one side of the separation guide block, and an inclined guide toward the center of the yarn splicing hole is provided on the other side to guide the positioned yarn to the yarn splicing hole with a gap for yarn passage. Since the guide blocks G2 and G4 having surfaces are provided, and the guide blocks G2 and G4 on both sides of the yarn splicing block and the untwisting nozzle pipes 4 and 5 are arranged at opposite positions with respect to the center line of the yarn splicing hole 13, The package side yarn end and the bobbin side yarn end are guided toward the yarn joining hole, and the cut yarn ends are separated from each other by the separation guide and sucked into the untwisting nozzle pipe, so that the two yarn ends are simultaneously Suction into one untwisting nozzle pipe is prevented.

[Brief explanation of the drawing]

Fig. 1 is a front view showing an embodiment of the yarn splicing device of the present invention, Fig. 2 is a plan view thereof, Fig. 3 is a partially sectional plan view showing a yarn splicing block and an untwisting nozzle pipe, and Fig. 4 is a plan view showing a splicing block and an untwisting nozzle pipe. FIG. 5 is a front view showing the structure of the guide block, FIG. 6 is a front view showing the state of the thread guided by the guide block. 2... Yarn splicing block, 4, 5... Untwisting nozzle pipe, 13... Yarn splicing hole, 33a, 33b... Guide surface, 34a, 34b... Guide surface, 35a, 3
5b...Top, 37a, 37b...Guide surface, G
1, G3... Separation guide block, G2, G4...
...Guide blocks.

Claims (1)

[Scope of utility model registration request] Separation guide blocks are provided on both sides of a yarn splicing block having a yarn splicing hole, and each of the separation guide blocks has a top portion substantially on the center line of the yarn splicing hole and has a guide surface inclined in the left-right direction from the top portion. An untwisting nozzle pipe opening is provided on one side, and a guide surface inclined toward the center of the yarn splicing hole that guides the yarn positioned in front of the yarn splicing block to the yarn splicing hole with a gap for yarn passage on the other side. A guide block having a
A spun yarn splicing device characterized in that the guide blocks and the untwisting nozzle pipe openings on both sides of the yarn splicing block are arranged at positions opposite to each other with respect to the center line of the yarn splicing hole.