JPH0550431B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to an automatic yarn rewinding machine in the textile industry, particularly in a rewinding machine equipped with a copp magazine device, for automatically replenishing the bobbin yarn to the copp magazine device. Then, the yarn end of the yarn is automatically guided to the yarn end holding means of the tip magazine device using a yarn end holding tube that has been introduced into the top hole of the yarn bobbin in advance, and the operation thereof is This is to ensure that this is carried out reliably.

[Prior Art] A cot magazine device is well known in which a plurality of pipe threads are accommodated and arranged in a circumferential manner in the winding section of an automatic rewinding machine, and are sequentially rotated and fed one pitch at a time. FIG. 4 (plan view) shows a typical example of a conventional cot magazine. This magazine device has a storage groove 3a for accommodating a plurality of tubes 5, 5, etc. in the center of a fixed magazine box 2. A tube creel 3 formed with grooves 3a is provided so as to rotate one pitch at a time, and the tube yarn 5 accommodated in the storage groove 3a is rotated one pitch at a time.
By the intermittent rotation of the tube creel 3, the material reaches the notch 2a of the magazine box 2 and is shunt-supplied to the winding section. At the upper center of the tube creel 3, a tube cover support 6 is provided at the tip of a suction tube 9 which is provided through the magazine device. is rotatably provided, and a tube cover 4 is swingably provided. On the other hand, the tube cover 4 is provided with a suction port 4a at an eccentric position, and this suction port 4a is normally located at the As shown in Fig. 7, it is held so as not to coincide with the suction tube 9, and its holding means is as shown in Fig. 9 (enlarged cutaway plan view explaining the structure) and Fig. 11 (lower side view of Fig. 9). A coil spring 4c is attached to the outer periphery of the shaft 4b.
A stopper 4d protruding from the back side of the tube cover 4,
4d and the upper end flange portion of the suction tube 9. Therefore, the outer periphery of the tube cover 4 is manually rotated against the coil spring 4c, and the suction tube 9 and the suction port 4a are aligned as shown in FIG. 10 (operation diagram in FIG. 9) to perform suction. An inhalation flow can be formed at the mouth 4a.
If you release your hand, it returns to its original position as shown in Figure 9 and holds the suctioned end of the thread.

On the other hand, the opening operation of the suction port 4a can also be performed mechanically, and this operation is performed to tension the yarn end side of the pipe yarn fed to the chute and to suction the cut side after yarn splicing. As shown in FIG. 5, (partially cut-away lower side view of FIG. 4) and FIG. 11, as well as FIGS. 9 and 10, the shaft protrudes below the support 6. The distal end side of the hook lever 11 attached to the protruding side of 4b is a pivot rod 10 that protrudes from the lower part of the support 6.
The suction tube 9 and the suction port 4a are engaged with each other to actively rotate the shaft 4b, and the tube cover 4 is also rotated to bring the suction tube 9 and the suction port 4a into alignment (semi-alignment if necessary). The rotating rod 10 reciprocates as shown by the chain line from the solid line position in FIG. 9, and moves every time the stored tube yarn is fed through the chute to form a suction air flow at the suction port 4a of the tube cover 4.

By the way, in such a conventional cot magazine device, when storing a normal pipe yarn in the tube creel 3, the yarn end at the end of winding of the pipe yarn is manually searched, and the yarn end is placed under the tube cover as described above. A suction port 4a formed by rotating the suction port 4 to form a suction airflow
It is necessary to introduce the system into the system, which requires manpower. In order to make it easier to take out the yarn end of the tube yarn, the yarn end of the tube yarn is pulled out in advance and introduced into the top hole of the tube yarn bobbin as a yarn end holding tube yarn, and the yarn end is automatically transferred to the cot magazine. A feeding device has been developed to supply Various means are known as this supply device. FIG. 6 (side view) shows the yarn end retained tube yarn 5, in which the yarn end is searched for and pulled back, and then introduced into the top hole of the bobbin to become the retained yarn end 5a. On the other hand, such a yarn end retained pipe yarn 5 is supplied to the tube creel 3 of the magazine device, and the retained yarn end 5 is
In order to introduce the yarn a into the suction port 4a of the tube cover 4, it is necessary to pull out the retained yarn end 5a and guide it to the suction port 4a, and various means have been developed and proposed for this purpose. For example, Tokukai Akira
Publication No. 57-77172 and Japanese Utility Model Application Publication No. 58-184459 are known, and in these, a U-shaped pipe is provided from the top of the stored yarn to the suction port of the tube cover, and the end of the retained yarn is connected to the suction port. I am trying to guide you.

[Problems to be Solved by the Invention] By the way, in the technical means disclosed in the above-mentioned Japanese Unexamined Patent Publication No. 57-77172, the U-shaped pipe is fixed to the tube cover, and the thread end holding member is fixed to the tube cover. It is used as part of. Therefore, it is pointed out that when applied to an existing copp magazine device, the tube cover increases the weight and the conventional drive system cannot operate stably for a long period of time. In addition, when suctioning and removing the cut yarn ends fed to the chute, since the cut ends pass through a U-shaped pipe, it is necessary to strengthen the suction suction, and this can be applied immediately to the existing magazine device. difficult to do.

[Means for Solving the Problems] Therefore, the present invention provides a U-shaped curved suction tube extending from the suction port of the tube cover to a position immediately before supplying the chute, and this curved suction tube extends from the suction port of the tube cover to the inner surface of the tube. A thread passage groove is provided in the tube cover to serve as a temporary thread end suction introduction pipe, and this curved suction tube is attached to a fixed member of the tube cover support to be a fixed type independent of movement of the tube cover. The suction port opening/closing operation is not opened until the yarn splicing of the yarn splicing device is completed to hold the yarn end.

[Function] That is, when the tube cover 4 of the magazine device turns and the suction port 4a and the suction tube 9 coincide, the curved suction with a slit formed just above it and at the top of the tube yarn located just before the chute is supplied. The pipe is fixedly arranged to suction and guide the yarn end, and the yarn end is removed from the slit of the suction pipe and guided to the suction port of the tube cover in the conventional manner.

[Example] The present invention will be described in detail below based on the drawings, but the drawings show specific configuration examples of the present invention, and some of the designs may be changed or can be implemented in the same way even if some of the configurations are changed. FIG. 1 (plan view) shows a small magazine device 1 to which the present invention is applied, and this magazine device 1 has a magazine box 2, tube creel 3, and It is composed of a tube cover 4, and the tube cover 4 is rotatably supported on a support 6 as before. FIG. 2 (partially cutaway side view) shows the side surface in the direction of the arrow in FIG. 1, and FIG. ing. That is, in the magazine device according to the present invention, a curved suction tube 8 is attached to the support 6 via an angle bracket 7, and the tube 8 is attached to the discharge side with a slight gap provided on the upper surface of the tube cover 4, as shown in FIG. The opening corresponds to the suction tube 9 located in the center of the support 6 through the tube cover, and the suction side opening corresponds to the top of the stored pipe yarn located in front of the chute supply position of the tube creel 3. Shaped into a U-shaped pipe,
A continuous yarn passage groove 8a is formed on the curved inner surface side. The suction side opening has a trumpet-shaped enlarged edge 8b, and the enlarged edge 8b and the thread passage groove 8a are formed with a constricted curved surface 8c, and continuous protruding ribs 8d are provided on the outer periphery of these edges as necessary. Form.
7a is a rib formed on the angle bracket 7, and these ribs 7a and 8d may be connected to each other. In the embodiment, the angle bracket 7 and the curved suction tube 8 are integrally molded from a synthetic resin material, but they may be constructed separately and assembled, and the design of these can be freely changed. In addition, when constructed from separate metal materials, the ribs 7a and 8d may be unnecessary. Figure 12 (1st
Fig. 13 (side view in the direction of the arrow in Fig. 12) shows the installation and drive system of these parts. When attaching the angle bracket 7 to the support 6, A mounting seat 14 as shown in FIG. 13 may be glued or screwed to a part of the lower surface of the support 6, or
4 is molded integrally with a support 6, and a bracket 7 is attached to the outer peripheral side thereof.

By the way, regarding the operation of the conventional tube cover 4, as explained in FIGS. 9, 10, and 11, in the process in which the swivel rod 10 moves in a chain line, the swivel rod 10 touches the protruding end of the hook lever 11. This is done by striking and shaking it. That is, the suction tube 9 and the suction port 4a of the tube cover 4 are aligned by swinging the foot lever. Therefore, the twelfth aspect of the present invention
In the figure, basically, the suction port 4a of the tube cover is connected to the suction tube by moving the rotation rod 10 so that most of the configuration of the conventional device can be used as is, that is, with only a slight modification. 9, but one of the points of the present invention is that it is improved so that such operation is performed via a forked lever.
In any case, by aligning the suction port 4a with the upper end opening of the suction tube 9 as described above, the suction airflow inside the suction tube 9 extends to the curved suction tube 8 to hold the top hole of the stored pipe yarn. As the yarn end is drawn into the suction port 4a, this yarn end is immediately pulled out from the yarn passage groove 8a, so that the accommodation tube yarn and the suction port 4a are connected, and the suction port 4a and the suction tube 9 are deviated from each other. Hold the end of the thread. On the other hand, as explained in FIGS. 9 and 10, for example, the conventional turning rod 10 is operated to open when the turning rod 10 moves from the solid line position to the dotted line position, so that the opening operation is performed when the turning rod 10 moves from the solid line position to the dotted line position. When a certain pipe yarn is fed through the chute, it moves in a dotted line shape and opens, making it impossible to hold the end of the yarn that has been sucked at all costs.

Therefore, in the present invention, as the concept is shown in FIG. 12, when the swing rod 10 moves from the solid line position to the chain line position, the opening operation is stopped, and only when it moves from the chain line position to the solid line position, the opening operation is performed and the chute is opened. The yarn end of the stored tube yarn at the position immediately before supply is introduced by suction. Therefore, the yarn end of the tube fed through the chute is held by a specially provided holding plate, and the shaft 4b of the tube cover 4 is made to operate only when the turning rod 10 returns to the solid line position. . That is, as shown in FIGS. 12 and 13, a shaft 15 is provided on a part of the mounting seat 14 to protrude downward, and a fork lever 16 is freely supported on the shaft 15, and a coil spring 17 is attached to the shaft 15. The shaft 15 is connected to the twelfth
By applying force in the counterclockwise direction in the figure, the operating arm 16a of the hook cover 16 is pressed into contact with the lever 13 attached to the tube cover shaft 4b, and the driven arm 16b of the hook lever 16 is rotated. Position it on the upper path of the movement trajectory of 10.

On the other hand, the yarn end holding plate for the chute supply tube yarn is composed of an oval-shaped thin bullet plate 12 fixed to the back side of the tube cover 4 with screws 12a, and one side of the stopper 4d is attached to the thin bullet plate 12. A retracting through hole and a through hole corresponding to the suction port 4a are formed and disposed between the upper edge of the suction tube 9 and the back surface of the tube cover 4 (FIG. 13). Therefore, this holding bullet plate 12 can reliably hold the yarn end by the suction force of the suction tube 9 in a state where the suction port 4a is not aligned with the upper end opening of the suction tube 9.

Therefore, as shown in FIG. 14 (operating diagram in FIG. 12), when the swing rod 10 moves on the chain line and reaches the position shown in the dashed-dotted line, the driven arm 16b of the fork lever 16 is moved against the coil spring 17. At this time, the actuating side thrust arm 16a is rotated in the direction of the lever 1.
3, the lever 13 will not be activated. On the other hand, when the swing rod 10 returns, the driven arm 1
6b is pivoted in the counterclockwise direction, whereby the actuating arm 16a presses and moves the lever 13 from the dotted line position to the solid line position, thereby pivoting the tube cover 4 to direct the suction airflow into the curved suction. The top hole holding yarn end of the accommodation tube yarn 5 located immediately before the chute can be guided to the suction port 4a via the tube 8. This suction airflow also sucks and removes the yarn cut end of the yarn splicing device. In order to improve the suction introduction of the yarn end held in the top hole, a blowhole (not shown) is provided on the back bottom surface of the magazine box 2 in correspondence with the bobbin bottom hole of the yarn end introducing tube yarn. In connection with the suction and introduction of the yarn end, blowing air facilitates the holding of the yarn end in the top hole of the pipe yarn, and assists the suction airflow acting on the curved suction tube 8 to ensure the guidance of the yarn end introduction. can.

[Effects of the Invention] Since the cot magazine device of the present invention has the yarn end suction curved suction pipe fixedly provided in this way,
A conventional tube cover can be used to ensure smooth operation. In addition, this suction pipe guides the thread end and releases it immediately.
Since the yarn end is located between the tube cover suction port and the tube yarn as in the conventional case, unwinding during supplying the chute can be reduced. Therefore, by slightly modifying the existing magazine device, it is possible to create a magazine device that automatically suctions and holds the yarn end of the yarn end holding tube yarn.

[Brief explanation of the drawing]

Fig. 1 is a plan view of a cot magazine device according to the present invention, Fig. 2 is a partially cutaway side view in the direction of the arrow in Fig. 1, Fig. 3 is a sectional view in the direction of the arrow in Fig. 2, and Fig. Figure 4 is a plan view of a conventional cot magazine device, Figure 5 is a partially cutaway side view of the lower side of Figure 4,
Figure 6 is a side view, Figure 7 is a partially cutaway plan view, and Figure 8 is a partially cutaway plan view.
The figure is an explanatory diagram of the operation of Figure 7, Figure 9 is an enlarged diagram of the configuration of Figure 7, Figure 10 is an explanatory diagram of the operation of Figure 9, Figure 11 is a lower side view of Figure 9, and Figure 12 is an explanatory diagram of the operation of Figure 9. The figure is a partially cutaway enlarged view of Fig. 1, Fig. 13 is a partially cutaway side view in the direction of the arrow in Fig. 12, Fig. 14 is an explanatory view of the operation of Fig. 12, and Fig. 15 is a part of Fig. 14. It is an operation explanatory diagram. DESCRIPTION OF SYMBOLS 1...Cop magazine device, 2...Magazine box, 3...Tube creel, 4...Tube cover, 4a...Suction port, 5...Tube thread, 6...
Support, 7... Angle bracket, 8... Curved suction tube, 9... Suction tube, 10... Swivel rod, 11... Foot lever, 12... Holding bullet plate, 13... Lever, 14...
... Mounting seat, 15 ... Shaft, 16 ... Forked foot lever, 16a ... Operating side protruding arm, 16b ... Driven arm, 17 ... Coil spring.

Claims (1)

[Claims] 1. A tube creel for individually accommodating a plurality of supply pipe yarns is provided around the periphery, and the tube creel is sequentially rotated intermittently to supply the supply pipe yarn to the winding device at a certain position, and a suction tube is attached to the lower surface of the suction tube cover. As the eccentrically mounted pivot lever swings following the pivoting movement of the pivot rod, the suction tube cover is eccentrically pivoted about the pivot lever attachment shaft, and the communicating suction hole of the suction tube cover is rotated eccentrically. A yarn clamping device for a cot magazine configured to communicate with and out of communication with an upper end opening of a suction tube, the tube being fixed to an upper end of the suction tube and pivotally supporting the suction tube cover. The cover support has a thread passage on the curved inner surface side, which extends from the communication suction hole of the suction tube cover to the top of the supply pipe yarn located immediately in front of the supply pipe yarn input part of the tube creel, via the angle bracket. A U-shaped curved suction tube with a communicating groove is provided, and an actuating arm that presses and releases the tip of the swinging lever in the swinging direction, and a driven arm that is provided on the swinging locus of the swinging rod. A bifurcated foot lever is pivotally supported in a fork shape, and its pivot portion is rotatably provided with respect to the tube cover support, so that the suction tube cover can communicate with the communicating suction hole. A yarn clamp device for a cot magazine, characterized in that it is configured to operate in communication using only one side movement of a rotating rod.