JP2999580B2 - Method and apparatus for fastening winding end of filament - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for automatically fastening a winding end of a filament made of an organic or inorganic material wound on a reel. It is about. 2. Description of the Related Art Conventionally, as a method of processing a winding end of a filament which has been wound on a reel, for example, an elastic force of an elastic member such as a leaf spring disposed on the reel is used. In addition, the worker forms a loop near the end of the striatum and winds it around the reel, dives the end of the striatum into the loop, and reverses the winding direction. Although there is a method of tightening and processing, any of the methods requires work by an operator, and has a drawback that it is difficult to expect a reliable fastening processing. [0003] In order to solve such disadvantages, various methods have been proposed for automatically fastening the winding end of the filament.
For example, Japanese Patent Application Laid-Open No. 61-162,469 discloses that a linear member positioned between a reel for winding the linear member and a traverser for reciprocating in the axial direction of the reel and guiding the linear member is engaged with an engaging member. Then, the engaging member is rotated around the axis of the reel in a direction opposite to the winding direction to form a loop and wind around the reel. Disclose. However, according to this method, when the engaging member is rotated around the axis of the reel to form a loop, the linear member located between the traverser and the engaging member is formed. Because the body is wound in the direction opposite to the winding direction, the body comes into contact with the filament wound on the reel over substantially one or more turns. In other words, the rotation of the engagement member during loop creation causes the filament portion on the winding end side to strongly rub against the surface of the coiled filament at approximately twice the relative speed between the reel and the engagement member. In addition, it is difficult to ensure the characteristics of the striated body portion, and furthermore, the smooth movement of the engagement member is impaired. In other words, there is a problem that so-called "disruption" easily occurs. The present invention has been made in view of such a problem, and, when winding a striated body on a reel, a method of winding the striated body that can automatically and reliably wind the end portion on the reel. Its purpose is to provide the device. [0005] In order to achieve this object, in the method of the present invention, when the winding end of the wire wound on the reel is fastened, the reel and the vicinity of the reel are fastened. A plurality of guides concentrically arranged radially outside of the reel are rotated in the winding direction of the reel while the fixed fastening portion is fixed, so as to cross the unwound filament connected to the outside of the reel. Thus, after a loop is formed by inverting the unwound filament at the fastening portion, the guide group is further rotated in the winding direction of the reel, and a reversal winding for one revolution of the reel having the loop as a loop-back portion. The strip is wound around a reel, and the end of the inverted winding strip opposite to the loop is overlapped with the loop. After that, the inverted winding strip is held in that state, and the inside of the loop is positioned inside the loop. While cutting the inverted winding wire body part The cut end on the side of the striated body wound on the reel is gripped and sunk into a loop, and then the cut end is moved in a direction opposite to the winding direction to fasten the winding end. In the apparatus of the present invention for fastening a winding end of a wire wound on a reel, the unwound wire is separated from the wound wire outward in the reel radial direction. A guide portion for guiding the reel in the circumferential direction, a fastening portion disposed opposite to the guide portion and movable in the reel axis direction, and a holding portion for holding the wound wire body in its wound state; A rotating plate rotatable around the axis of the reel, and a guide arranged at a distance from each other in the circumferential direction of the rotating plate to guide the unwound filament in the circumferential direction of the reel. A loop locking device that engages with an unwound wire portion to form a loop with the relative rotation of the wound wire member with respect to the reel in the winding direction, while releasing the formed loop. When,
A cutting device for gripping and cutting an unwound wire portion that is continuous with the wound wire corresponding to the loop position by one layer of relative rotation of the unwound wire; Movement in the direction away from the section causes the cut end of the cut striatum to be sunk into the released loop and fastened.
Preferably, a holding device for holding the cut end of the unwound filament is provided on the guide portion. Since a loop can be formed at the winding end of the filament without contacting the filament already wound on the reel, a problem resulting from the contact with the wound filament is obtained. Does not occur. In addition, when the end is sunk into a loop formed near the winding end of the striated body, the striated body may be disintegrated since the wound wire state is kept in the wound state. Therefore, the winding end can be securely fastened. Hereinafter, the present invention will be described in detail with reference to the drawings. FIG. 1 is a schematic diagram showing a winding end fastening device for a filament according to the present invention, and includes a guide portion 10 and a fastening portion opposed to the guide portion via a reel 14 around which the filament 12 is wound. 16 and so on. Reference numeral 18 denotes a traverser that reciprocates in the reel axis direction and aligns and guides the wound filaments to the reel. As shown in FIG. 2, the guide section 10 has a ring-shaped rotating plate 20 and a plurality of guides 22 disposed on one side thereof. These guides 22 are spaced apart from each other by a predetermined distance in the circumferential direction of the rotating plate 20 so as to be separated from the reel 14 and, by extension, the striated body wound therearound by a predetermined distance, while rotating the rotating plate. A guide roller 24 is disposed substantially parallel to the axis and separated from each other, and has a free end at each free end.
Are rotatably mounted. In addition, reel
The shaft 14 is connected to a shaft 26 of a rotary driving device (not shown) through a central opening 20a of the ring-shaped rotating plate 20, and is rotatable around its axis. Preferably, a guide roller of one of the guides 22 is replaced with a pair of guide rollers 24 which can be separated in the axial direction of the guide, as shown in FIG.
a and a spring member in which the rollers are disposed in the guide body
28, and the guide rollers forming a pair are pressed to approach each other by the elastic force of the spring member 28. As a result, the rod 30 connected to one of the rollers is pressed in the direction indicated by the arrow A against the spring member 28 to form a gap larger than the outer diameter of the striatum between the pair of rollers. Then, a part of the unwound wire strip guided along the guide roller falls into the gap. Then, when the pressed rod 30 is released, the guide rollers forming the pair are pressed by the elastic return of the spring member 28 and approach each other to clamp the linear body 12, and the linear body is attached to the rotating plate 20. Can be held together. On the other hand, the fastening portion 16 opposed to the guide portion 10 via the shaft 26 and, consequently, the reel 14 integrally connected to the shaft 26, as shown in FIG. And a loop device 34 which engages the striated body 12 to form a loop at its winding end while releasing the formed loop. The cutting device 32 has a support member 38 having one end fixed to a mounting plate 36. A sleeve 40 is coaxially disposed inside the support member 38 so as to be movable in the axial direction. Support member
38 has a step portion 38a that projects radially inward in the middle inside thereof and is continuous in the circumferential direction. It has a continuous step portion 40a. A compression spring 42 is disposed in the space defined by the steps 38a and 40a,
It is elastically deformed as the support member 38 and the support member 38 approach each other. Further, the sleeve 40 has a shoulder portion 40b on the inner peripheral surface on the side away from the mounting plate 36, and the shoulder portion retreats with the retreat of the output shaft 44a of the fluid pressure cylinder 44 fixed to the mounting plate 36. It engages with a cutting member 46 disposed at the free end of the output shaft 44a. Therefore, the compression spring 42 includes the cutting member 46 and the sleeve 40.
While being elastically deformed due to the retreat of the sleeve caused by engagement with the shoulder of the cylinder, the guide portion of the cylinder output shaft 44a
The sleeve 40 is restored and extended with the extension in the 10 directions, and presses the sleeve 40 in the predetermined position direction. The support member 38 has a protruding portion protruding in the axial direction facing the guide portion 10 formed on an end face thereof.
The holding jaw 50 is integrally fixed to the end face of the protruding portion.
This gripping jaw 50 forms a gripping groove 48 in cooperation with the remaining end face portion of the support member 38. The groove width of the holding groove 48 and the width of the concave portion of the cutting member 46 can accommodate the linear body portion located between the reel 14 and the guide roller 24, that is, at least the outer diameter of the linear body 12. What is necessary is just to have a large groove width. Thus, the relative movement of the cutting member recess and the gripper jaw with the extension of the fluid pressure cylinder causes the cutting member 46 to be aligned with the gripping groove and the extension of the fluid pressure cylinder.
The striatum housed in the section defined by the concave portion of
The striatal body can be cut by further extending the cylinder while pressing against the gripping jaw to hold it immovably. The gripping jaw 50 has a through hole 50a extending in the direction of the movement to allow the movement of the cutting member 46 due to the expansion and contraction of the fluid pressure cylinder 44. On the other hand, the loop device 34 has a locking member 52 which is displaced radially outward with respect to the axis of the output shaft of the fluid pressure cylinder 44 constituting the cutting device and is separated from the gripping jaw 50. That is, in the present embodiment, the locking member 52 is
And fixed to the outer surface of the support member 32. Also, striatum
In order to facilitate the accommodation of the 12 in the holding groove 48, chamfering is applied to the opposing portions of the holding jaw 50 and the locking member 52. The engaging member 52 engages with the unwound wire when the unwound wire is rotated in the winding direction around the axis of the reel to form a loop. In FIG. 3B, the cross-sectional shape is an arc shape as clearly shown in FIG. However, it is needless to say that the present invention is not necessarily limited to this embodiment, and various shapes can be applied. In addition, the locking member 52 has a groove 52a that divides the arc-shaped cross section into approximately two parts and extends so as to be substantially parallel to and separate from the axis of the fluid pressure cylinder 44. A release member that presses a linear body portion that is locked along the arcuate outer surface of the locking member into the groove 52a to form a loop in the direction of the opposing guide means to release the linear body portion. Arrange 54. Therefore, the release member 54 has a shape and dimensions that at least a part thereof protrudes from the surface of the locking member 52. Also, the connecting plate 54a
The release member 54 is reciprocated in the direction of the guide portion 10 along the groove 52a by expansion and contraction of the cylinder output shaft 56a. And
Mounting plate 36 on which cutting device 32 and loop device 34 are mounted
Is attached to the arm 58. This arm 58 is
As a result, it is driven in a direction to approach or separate from the guide unit 10. Further, the apparatus of the present invention includes a holding portion 64 for holding the filament wound on the reel 14 from outside. The holding portion 64 includes a pair of presses 66 that are diametrically opposed to the striated body wound on the reel 14, a pair of rods 68 that respectively support the presses, and a guide 10 that opposes the rods. And a driving device 70 that can reciprocate toward the other and approach each other. Then, based on the operation of the driving device, the filament approaches the reel 14 on which the filament is wound, and presses the coil from the outside with a pair of pressers 66, thereby "unraveling" the coil. And keep the striatum in its wound state. Next, the manner in which the winding end of the filament wound on the reel according to the present invention is fastened will be described. As schematically shown in FIG. 1 or FIG. 4, the reel 14 connected to the shaft 26 of the rotary driving device (not shown) through the central opening 20a of the ring-shaped rotating plate 20 in the direction indicated by the arrow B. By the rotation of the traverser 18 reciprocating in the axial direction of the reel in cooperation with the rotation of the traverser 18, the striated body 12 is wound around the reel 14 by a predetermined amount. In this case, the striatum 12
Since the rotating plate 20 does not rotate, it passes between the guides 22 provided adjacent to each other and is wound on a reel, so that the winding operation of the filament is not hindered. Next, as shown in FIG. 5, the pair of guide rollers 24a and the traverser 18, which can be separated in the axial direction, are aligned with the unwound filament 12 between the traverser and the reel 14. On the other hand, the fastening means is moved to the guide portion 10 until the locking member 52 of the fastening portion 16 intersects the unwound filament.
Approach. However, in this state, since the rotating plate 20 is immobile, the unwound filament 12 does not engage with the locking member 52 and the paired guide rollers 24a. Therefore, while the rotation of the reel 14 is stopped,
When the rotating plate 20 is rotated in the direction shown by the arrow C in FIG. 6A, that is, in the winding direction of the filament, the unwound filament continuous with the filament wound on the reel 14 becomes Along with the rotation of the rotating plate 20, the engaging portion 16 is engaged with the pair of guide rollers 24a and moves in the circumferential direction of the reel, and is fixed to the rotating plate 20. It will engage with the locking member 52. Then, by further rotating the rotating plate 20, a loop 70 is formed between the fastening portion 16 and the reel 14, as shown in FIG. In addition, the unwound filament is
Since each guide roller 24 with which the guide 22 engages can rotate around its respective axis, it is smoothly fed out in response to the rotation of the rotating plate 20. The guide roller 24a with which the linear member forming the loop 70 engages, and further the rotary plate 20 to which the guide roller 24a is attached, are further rotated, and the unwound filaments are sequentially turned on the plurality of guides 22 provided thereon. The body is engaged and wound up in the shape of a spinning wheel, and the rotation is stopped short of a position where the pair of guide rollers 24a makes one full rotation. This situation is shown in FIG. Then, as shown in FIG. 7 (b), the unwound filament supplied gradually through the traverser 18 moves the fastening portion 16 to the reel axis until it does not engage with the locking member 52 of the fastening means again. It is separated from the rotating plate 20 along the direction. At this time, the striated body engaging with the locking member 52 to form a loop is maintained in the locked state by the frictional force generated between the locking member and the striated body, and thus drops off from the locking member. Nothing. While maintaining the fastening means 16 in the retracted position, as shown in FIG. 8 (a), the rotating plate 20 is again rotated in the reel winding direction so that the reel 14 and the guide roller 24a forming a pair are rotated. The intervening filament is brought to a position corresponding to the gap formed between the chamfered portion of the gripping jaw 50 of the fastening means 16 and the locking member 52. At this time, traverser 18
Is moved in parallel to the direction of the rotating plate 20 as shown in FIG. 8 (b), so that the linear body gradually supplied through the traverser may overlap the linear body already engaged with the guide 22. Not to be. Thus, it is possible to reliably prevent the unwound filament from overlapping with the filament already guided by the guide roller 24a. Then, as is apparent from FIG. 8 (c), the fastening portion 16 at the retracted position is advanced toward the rotating plate 20, while the rotating plate 20 is rotated in the filament winding direction, and the reel is rotated. The linear body positioned between the support member 38 and the guide roller 24a is dropped into a holding groove 48 formed between the supporting member 38 and a holding jaw 50 provided on a protruding portion thereof. At this time, the mutually facing end faces of the grip jaw 50 and the locking member 52 are chamfered, so that the striated body can easily enter the grip groove along those surfaces. Therefore, the rod 30 related to the guide roller 24a is pressed against the spring member 28 to separate the pair of rollers from each other to form a gap, and the linear body guided by the guide roller 24a is removed. Release the rod 30 in the gap.
As a result, only the striatum that has been guided by the guide roller 24a can be gripped by the pair of guide rollers 24a. Here, gripping the filament 12 by the guide roller 24a separated from the reel 14 is useful for improving workability because the filament is not entangled in a subsequent winding and fastening operation. That is. Then, the holding unit 64 disposed on the outer periphery of the reel 14 around which the filament 12 is wound is operated, and the pressing members 66 opposed to each other via the reel 14 are moved closer to each other. And hold it down. This state is shown in FIG. Next, as shown in FIG.
When the output shaft 44a is extended by operating the fluid pressure cylinder 44, the cutting member 46 shown in FIG.
In the direction, and cuts while gripping the grip groove 48 and the striatum portion accommodated in the concave portion of the cutting member. Therefore, when the release device 54 is pressed in the direction of the rotating plate 20 by operating the loop device 34, the loop engaged with the locking member 52 is also pushed in the direction of the rotating plate by the forward movement, and the engagement with the locking member 52 is performed. Can be solved. At this time, the cut portion of the striatum located on the reel side is pressed and gripped between the cutting member 46 and the gripping jaw 50,
The other cut portion is in a state of being sandwiched between a pair of guide rollers 24a. Then, by retracting the fastening portion 16 in the direction away from the rotary plate 20 again, the reel-side linear body whose end is gripped by the cutting device 32 is disengaged from the locking member 52. You can dive in a loop. However, in this state, the cut portion of the reel-side striated body simply dives under the loop, and the loop is not substantially tightened. Then, as shown in FIG. 10 (c), if the fastening device 16 is rotated around the axis of the reel 14 in a direction opposite to the winding direction of the filament, the filament is tightened and its end is fastened. can do. Thus, according to the present invention, the filament is rotated around the reel in the same direction as the winding direction at the end of the filament that is wound around the reel. A loop is formed, and the end of the striated body is sunk into the loop so that it is automatically tightened. When the loop is formed, the wound wrapped reel and the unwrapped striated body do not rub against each other. ,
Does not damage the striatum. In addition, since the fastening operation of the striated body can be automatically performed, the fastening operation can be performed more reliably than the conventional fastening operation by the worker, and the burden on the worker and the number of working steps can be reduced. In addition, it greatly contributes to the development of industry by improving workability.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an explanatory view schematically showing a device of the present invention. FIG. 2 is a view schematically showing a guide means of the apparatus of the present invention. FIG. 3 is a view schematically showing a fastening means of the device of the present invention. FIG. 4 is an explanatory view showing a state in which an end of a striated body wound on a reel is fastened by the method of the present invention. FIG. 5 is an explanatory view showing a state in which an end portion of a filament wound on a reel is fastened by the method of the present invention. FIG. 6 is an explanatory view showing a state in which an end of a filament wound on a reel is fastened by the method of the present invention. FIG. 7 is an explanatory view showing a state in which an end of a filament wound on a reel is fastened by the method of the present invention. FIG. 8 is an explanatory view showing a state in which an end of a filament wound on a reel is fastened by the method of the present invention. FIG. 9 is an explanatory view showing a state in which an end of a striated body wound on a reel is fastened by the method of the present invention. FIG. 10 is an explanatory view showing a state in which an end of a filament wound on a reel is fastened by the method of the present invention. [Description of Signs] 10 Guide means 12 Striae body 14 Reel 18 Traverser 20 Rotating plate 22 Guide 24 Guide roller 32 Cutting device 34 Loop device 46 Cutting member 48 Holding groove 50 Holding jaw 52 Locking member 54 Release member 64 Holder

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-61-162469 (JP, A) JP-A-4-371450 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) B21C 47/14 B21C 47/26 B65H 65/00

Claims (1)

(57) [Claims 1] When fastening the winding end of the filament wound on the reel, the diameter of the reel is fixed while the reel and the fastening portion arranged near the reel are fixed. A plurality of guides concentrically arranged on the outer side in the direction are rotated in the winding direction of the reel so as to traverse the unwound line connected to the outside of the reel, so that the unwound line is fastened at the fastening portion. After inverting to form a loop, the guide group is further rotated in the winding direction of the reel, and an inversion winding strip for one revolution of the reel having the loop as a loop-back portion is wound around the reel. After arranging the end of the body opposite to the loop so as to overlap the loop, while holding the inverted winding strip in that state, cutting the inverted winding strip located inside the loop, Hold the cut end of the striatum wound on the reel and loop Were allowed dive, the cutting edge is moved in the winding direction opposite to the direction, the winding end fastening method of the striatum, characterized in that for fastening the winding end. 2. An apparatus for fastening a winding end of a wire wound on a reel, wherein the unwound wire is separated from the wound wire radially outward in a reel circumferential direction. A guide portion, a fastening portion disposed opposite to the guide portion and movable in the reel axis direction, and a holding portion for holding the wound wire body in its wound state. A rotating plate rotatable therearound, and a guide disposed at a distance from each other in the circumferential direction of the rotating plate to guide the unwound filament in the circumferential direction of the reel. A loop device that engages with the unwound filament portion to form a loop with the relative rotation of the filament with the reel in the winding direction, and that can release the formed loop; Unwinding continuous with the winding wire corresponding to the loop position with the further relative rotation of the winding wire A cutting device capable of gripping and cutting the striated body portion, and by moving the fastening portion in a direction away from the reel, the cut end of the grasped striated body is sunk into the released loop. An apparatus for fastening a winding end of a striated body, wherein the apparatus is fastened. 3. The apparatus according to claim 2, wherein the guide portion has a holding device for holding a cut end of the unwound filament.