JP2001130835A - Remaining yarn disposal method and device for bobbin - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve a conventional method and device for cutting and removing a remaining yarn from a bobbin having collars in that the construction is complicated, the device is expensive and the maintenance requires much labor. SOLUTION: A thrust cylinder 2 is provided in one side of a gate frame 3 for fixing and holding a bobbin 20. A pair of horizontal driving devices (horizontal cylinders 5, 6) are provided on a horizontal portion 3a of the frame and a pair of elevating devices (elevation driving cylinders 7, 8) are connected to the ends of the horizontal driving devices for driving the elevation of approximately triangular cutter edges 9, 10. So, the cutter edges are moved from the inner ends of collars 21, 22 of the bobbin 20 along the axial direction for cutting a remaining yarn wound on the bobbin.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bobbin (reel) capable of smoothly removing residual yarn on a bobbin wound with various fiber yarns such as glass fiber, synthetic fiber or metal fiber. The present invention relates to a residual yarn processing method and a processing device therefor.

[0002]

2. Description of the Related Art In a twisting process and a fiber processing process, a large number of bobbins around which a fiber yarn as a material is wound are used. At this time, in order to prevent the yarn from being broken during the working process, this type of bobbin is generally replaced when the wound yarn is slightly left.

At this time, it is necessary to remove the remaining yarn in order to reuse the replaced bobbin.

Conventionally, the removal of this residual yarn has been disclosed in Japanese Patent Publication No. Sho 51-3.
As seen in No. 1295, a rotary cutter was generally used. However, this rotary cutter can cut residual yarn only when the bobbin is a core without a flange, and in a bobbin with a flange, completely cuts and removes the residual yarn near the flange. I couldn't do that.

As a device for removing residual yarn from a bobbin having a flange portion of this type, there is a bobbin residual yarn removing device disclosed in Japanese Patent Application Laid-Open No. 7-125934.

This device for removing residual yarn includes a rotary cutter 30 so as to be movable in the axial direction of the bobbin 40 as shown in FIG. The edge cutter 31 is provided so as to be movable in the direction in which the bobbin 40 is moved while rotating the rotary cutter 30 in the axial direction. Next, the thread remaining in the vicinity of the flange portion 40b where the rotary cutter 30 cannot move is cut by pressing the edge cutter 31 against the bobbin 40 side.

[0007] The bobbin 40 used in this residual yarn removing device is provided with a cutter groove 40a in the longitudinal direction thereof, and the rotary cutter 3 is provided in the cutter groove 40a.
0 and the tip of the edge cutter 31 penetrate,
The remaining yarn wound around the surface of the bobbin 40 is cut. Therefore, the cutter thread 4
0a, and a detecting device (not shown) or a horizontal driving device (not shown) for positioning the bobbin 40 so that the cutter groove 40a corresponds to the moving position of the cutter 30, 31. Is provided.

On both sides of the edge cutter 31, pressing members 32 and 33 for pressing and holding the remaining thread to be cut on both sides of the cutter groove 40a are moved in the direction of coming and going to the bobbin 40 in the same manner as the edge cutter 31. It is provided movably.

[0009]

In the above-mentioned conventional method of treating the residual yarn by the rotary cutter, the residual yarn of the bobbin having the flange cannot be completely cut and removed.
Ultimately, the thread remaining in the vicinity of the collar portion must be manually removed by an operator, which requires labor and reduces the work efficiency.

The bobbin residual yarn processing apparatus disclosed in Japanese Patent Application Laid-Open No. 7-125934 has no problem as described above, but only cuts the residual yarn near the flange in addition to the ordinary rotary cutter. In addition, it is necessary to prepare a special bobbin provided with a cutter groove at a predetermined position, because the edge cutter is used to cut by cutting the cutting edge against the thread. Also, a holding member for holding the yarn so as not to be loosened on both sides of the cutter groove is required. Furthermore, a horizontal drive device for driving the edge cutter and the holding member, and a drive control mechanism for detecting the position of the cutter groove and setting the bobbin to the correct position are also required, and the configuration is extremely complicated, and the device is extremely complicated. There is a problem that it is not only large but also very expensive. In addition, since the configuration is complicated, the maintenance is also troublesome, and as a result, there is a problem in that the device operation rate is reduced.

An object of the present invention is to solve the problems of the conventional bobbin residual yarn processing method and the conventional processing apparatus.

[0012]

Means for Solving the Problems In order to solve the above-mentioned problems, the invention according to claim 1 of the present invention is directed to a method for treating the remaining yarn of a bobbin using a pair of substantially triangular side-viewed triangular tips. The cutter blade is moved in a direction approaching each other while urged in the bobbin direction from the inner end side of the bobbin flange, thereby cutting off the remaining yarn wound around the bobbin and removing the remaining yarn from the bobbin. It was made.

According to a second aspect of the present invention, there is provided a bobbin residual yarn processing device comprising: a bobbin fixing device for immovably fixing a bobbin provided with flange portions at both ends; and a pair of substantially triangular side-viewed triangular tips. A cutter blade, an elevating device that holds the cutter blade and moves the cutter blade in a direction of coming into contact with and separating from the bobbin;
A horizontal drive device that holds the lifting device and moves the cutter blade attached to the lower end thereof along the axial direction of the bobbin, and by moving the cutter blade,
The remaining yarn wound around the bobbin held by the bobbin fixing device is cut and removed from the bobbin.

According to a third aspect of the present invention, in the configuration of the second aspect of the invention, a pair of cutter blades is limited to a pair of cutter blades that are provided to be inclined in a direction in which their tips approach each other. Features.

The invention according to claim 4 is the invention according to claim 2 or 3.
In the configuration of the invention described in the above, the supply path for sequentially supplying the bobbin wrapped with the residual yarn to the bobbin fixing device, which is inclined downward toward the bobbin fixing device, and inclined upward toward the bobbin fixing device, after removing the residual yarn And a collecting path for sequentially collecting the bobbins from the bobbin fixing device.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail based on illustrated embodiments.

FIG. 1 is a front view of a bobbin remaining yarn processing apparatus 1 according to the present invention, and FIG. 2 is a right side view thereof. As shown in the figure, this residual yarn processing device 1 has a substantially gate-shaped frame 3 in front view.
And a pair of horizontal driving cylinders 5, which are horizontal driving devices provided on a horizontal portion 3 a of the frame 3, and a bobbin fixing device 4 provided with a pressing cylinder 2 for bobbin fixing on one side of
6, a pair of lifting and lowering driving cylinders 7 and 8 as lifting devices attached to the tips of the piston rods 5a and 6a of the respective horizontal driving cylinders 5 and 6, and the piston rods 7a and 8a are provided with flat cutter blades 9, 10 attached to the lower end.

The horizontal drive cylinders 5 and 6 are mounted on the horizontal portion 3a of the frame 3 in the front-rear direction (the left-right direction in FIG. 2).
The horizontal cylinders 7, 8 attached to the tips of the piston rods 5a, 6a of the respective horizontal drive cylinders 5, 6 are provided with piston rods 5a, 6a. Is driven laterally along the horizontal portion 3a of the frame 3.

The lifting drive cylinders 7, 8 are connected to the piston rods 5a, 6a of the respective horizontal drive cylinders 5, 6.
As shown in FIG. 2, they are attached to the front end of each of them at a slant in a direction in which they approach each other downward.

The cutter blades 9 and 10 have a substantially triangular shape with a sharp tip (the lower end side in FIG. 1), and each of the cutter blades 9 and 10 is oriented such that the sharp tips face outward (in the horizontal direction in FIG. 1). Are attached to the lower ends of the piston rods 7a, 8a of the pair of lifting drive cylinders 7, 8.
The cutter blades 9 and 10 are respectively attached to the lower ends of the piston rods 7a and 8a so as to be able to swing to some extent, and are biased by elastic means (not shown) so that their tips rotate inwardly. Have been.

Here, the bobbin (reel) 20 to which the bobbin residual yarn treating apparatus 1 of the present invention is applied has flanges 21 and 22 provided at both ends as shown in FIG.

Next, a description will be given of a residual yarn processing method using the bobbin residual yarn processing apparatus 1 of the present invention having the above-described configuration.

First, in the twisting step or the fiber processing step, the bobbin 20 which has been replaced halfway while leaving the wound yarn is fed downwardly toward the bobbin fixing device 4 as shown in FIG. From 11, the bobbin fixing device 4 is sequentially supplied. Then, the supplied bobbin 20 is pressed against the other side of the frame 3 by a pressing cylinder 2 provided on one side of the frame 3,
It is fixed to a predetermined position in the frame 3 immovably.

Next, in this state, the lifting drive cylinder 7,
8 operates, and presses the cutter blades 9, 10 attached to the lower ends of the piston rods 7a, 8a against the bobbin 20 side. At this time, the left and right cutter blades 9 and 10 are located at the inner ends of the flanges 21 and 22 on both sides of the bobbin 20, as shown in FIG. Therefore, the tips of the pair of cutter blades 9 and 10 are respectively connected to the flanges 21 and 21 on both sides.
2 will bite into the remaining yarn 23 on the inner end side.

Next, the horizontal drive cylinders 5 and 6 are operated to move the lift drive cylinders 7 and 8 to which the cutter blades 9 and 10 are attached in directions approaching each other. As a result, the cutter blades 9, 10 move along the axial direction of the bobbin 20, and the remaining yarn 2 wrapped around the surface of the bobbin 20
3 are sequentially cut from the outer end side. At this time, the ends of the cutter blades 9 and 10 are biased by unillustrated urging means.
As the cutter blades 9 and 10 are moved, the remaining thread 23 on the surface of the bobbin 20 is reliably cut off. Also, the cutter blade 9.1
When the blade edge of No. 0 contacts the surface of the bobbin 20, the cutter blades 9 and 10 rotate and escape, so that the surface of the bobbin 20 is deeply damaged or the movement of the cutter blades 9 and 10 is hindered. There is no.

Then, the cylindrical bobbin 2
The remaining yarn 23 cut at the upper end of the tape 0 slides on the surface of the bobbin 20, falls, and is collected in the collection bag 13 provided below the bobbin 20.

On the other hand, the bobbin 20 'where the remaining yarn has been treated is
When the pressing cylinder 2 retreats and releases its fixation, the pressing cylinder 2 rolls toward the terminal end side (the right end side in FIG. 3) of the supply path 11 and is pushed out to the recovery path 12 side by a pushing device (not shown).

Since the collecting path 12 is inclined upward toward the bobbin fixing device 4, the extruded bobbin 2
0 ′ rolls down toward the lower side and falls into the collection wagon 14 arranged at the lower end side.

In FIG. 3, reference numeral 15 denotes the recovery path 1.
2 shows a stopper provided at the lower end of the second embodiment.

As described above, in the bobbin residual yarn treating apparatus 1 of the present invention, the residual yarn 23 is reliably cut and removed from the bobbin 20 provided with the flange portions 21 and 22 at both ends.

In the illustrated embodiment, a pair of horizontal drive cylinders 5 and 6 are exemplified as horizontal drive devices, and a pair of lift drive cylinders 7 and 6 are used as lift devices.
8, the horizontal driving device and the lifting device move the cutter blades 9 and 10 in the axial direction of the bobbin 20 and the bobbin 2.
It is only necessary to be able to drive in the direction of approaching / separating to zero, and for example, it may be driven mechanically using a mechanism such as a rack and pinion, or driven using a solenoid.

The bobbin used in the bobbin residual yarn processing method and the processing apparatus according to the present invention is mainly intended for a bobbin provided with a flange at both ends. Needless to say, it can be cut and removed. Further, the bobbin may be made of any material such as metal, synthetic resin, or wood.

[0033]

As described above, according to the first aspect of the present invention, the triangular cutter blade having a sharp tip is moved in a side view to cut the remaining thread wound on the bobbin. With the conventional rotary cutter, it is possible to cut the remaining yarn near the flange that could not be cut by the conventional rotary cutter, and the bobbin provided with this type of flange can be processed easily and efficiently. It can be done in a special way.

According to a second aspect of the present invention, there is provided a bobbin fixing device for fixing a bobbin immovably, an elevating device for moving a pair of cutter blades each having a substantially triangular shape in a side view and having a sharp tip in a direction of coming and coming from the bobbin. Since the bobbin residual yarn processing device is composed of a horizontal driving device that moves the cutter blade along the axial direction of the bobbin, the configuration of this type of processing device is simplified, supply can be performed at a low cost, and maintenance can be performed. There is an effect that the operation rate of the apparatus is improved.

According to a third aspect of the present invention, in addition to the effect of the second aspect of the present invention, a pair of cutter blades are provided so as to be inclined in such a direction that their tips approach each other. There is an effect that the cutting becomes more reliable.

According to the fourth aspect of the present invention, the provision of the supply path and the recovery path of the bobbin provides the effect of the invention of the second or third aspect, and furthermore, the residual yarn processing of a large number of bobbins can be efficiently performed. effective.

[Brief description of the drawings]

FIG. 1 is a front view of a bobbin residual yarn processing device according to an embodiment of the present invention.

FIG. 2 is a side view of the bobbin remaining yarn processing device shown in FIG. 1;

FIG. 3 is an overall side view showing an installation example of a bobbin remaining yarn processing device of the present invention.

FIG. 4 is a simplified perspective view of a main part of a conventional example.

[Explanation of symbols]

 Reference Signs List 1 bobbin remaining yarn processing device 2 pressing cylinder 3 frame 3a horizontal part of frame 4 bobbin fixing device 5,6 horizontal drive cylinder 5a, 6a horizontal drive cylinder piston rod 7,8 lifting drive cylinder 7a, 8a lifting drive cylinder piston Rod 9,10 Cutter blade 11 Supply path 12 Collection path 13 Collection bag 14 Collection wagon 15 Stopper

Claims (4)

[Claims] 1. A pair of cutter blades, each having a substantially triangular shape in a side view and having a sharp tip, are moved in a direction approaching each other while being urged in the bobbin direction from an inner end side of a flange portion of the bobbin. A bobbin residual yarn processing method, comprising cutting a wound residual yarn and removing the residual yarn from the bobbin. 2. A bobbin fixing device for immovably fixing a bobbin provided with a flange portion at both ends, a pair of cutter blades having a substantially triangular shape in a side view with a sharp tip, and holding the cutter blade. A lifting / lowering device for moving the bobbin in a direction to contact / separate from the bobbin; and a horizontal driving device for holding the lifting / lowering device and moving a cutter blade attached to a lower end thereof along the axial direction of the bobbin. The bobbin residual yarn processing device is characterized in that the residual yarn wound around the bobbin held by the bobbin fixing device is cut off and the residual yarn is removed from the bobbin. 3. The bobbin residual yarn processing device according to claim 2, wherein said pair of cutter blades are provided so as to be inclined in a direction in which their tips approach each other. 4. Inclined downward toward the bobbin fixing device,
A supply path for sequentially supplying the bobbin around which the residual yarn is wound to the bobbin fixing device, and a recovery path for inclining upward toward the bobbin fixing device and sequentially collecting the bobbin after removing the residual yarn from the bobbin fixing device are provided. The bobbin residual yarn processing device according to claim 2 or 3, wherein