JPH0621407B2 - Automatic bobbin changer for circular knotless braid machine - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention has a plurality of weights, so-called guns, arranged radially with respect to a central net receiving ring, and a bobbin wound with a thread is accommodated in the weight. , The thread is pulled out from the tip of the weight into the mesh receiving ring in sequence,
The present invention relates to a circular knotless braiding machine (hereinafter, simply referred to as a braiding machine) that braids a fishing net or the like in a net receiving ring by the combined movement of the weights. The present invention relates to a bobbin exchanging device for automatically exchanging a broken bobbin.

[0002]

2. Description of the Related Art Conventionally, in order to replace the bobbin, the braiding machine is stopped, the bobbin in the weight is taken out, a new bobbin is set, and the yarn drawn from the tip of the weight and the yarn at the knitting end are tied together. As described above, the bobbin replacement requires a troublesome knotting operation, and all of them are manually performed.

[0003]

There are hundreds of bobbins set in one braid machine, and if all bobbins are to be replaced while knotted, it would be enormous even if several people divided the work. It takes time. Therefore, when bobbins are exchanged among a plurality of machines, personnel cannot be assigned to all the machines, so that the operating rate is unavoidably reduced and productivity is affected.

[0004]

SUMMARY OF THE INVENTION The present invention eliminates the knotting work when replacing the bobbin and automates everything to shorten the bobbin replacement time. In addition, a cutting mechanism that cuts the braided net end of the yarn drawn from the weight on the bobbin side, a bobbin exchange mechanism that removes the weight containing the bobbin and sets a weight containing a new bobbin, and the setting Chuck mechanism for picking up and holding the supply thread tip of the new bobbin
When the desired bobbin reaches the bobbin exchange position, the braiding machine is stopped, the braiding end of the thread drawn from the tip of the weight by the cutting mechanism is cut on the bobbin side, and the bobbin is exchanged by the bobbin exchanging mechanism. After that, a control mechanism that controls a series of processes for picking up the tip of the new bobbin set by the chuck mechanism, restarting the operation of the braiding machine, and separating the thread from the chuck mechanism after a new crossing portion is formed. It is in a bobbin exchanging device provided with and.

[0005]

The bobbin is automatically replaced, and when the bobbin is replaced and the braiding is performed by the operation of the braiding machine, the bobbin positions are interchanged with each other due to the compound rotation between the weights to form an intersecting portion. By releasing the yarn after forming the portion, a yarn breakage occurs between the intersecting portions and the yarn jumps at a glance, but the operation of the braiding machine can be continued without knotting.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A bobbin automatic exchanging device in a braiding machine according to the present invention will be described with reference to the drawings. FIG. 1 shows an outline of an assembling net machine equipped with a bobbin automatic exchanging device according to the present invention. Reference numeral 1 is a central net receiving ring. A large number of weights 2, 2, ... With the yarn outlet 2a facing the net receiving ring 1 are radially arranged. On the inner side of the peripheral wall of the braiding machine, spindle wheels 3, 3, ... Are arranged so as to surround the braiding machine, and each spindle wheel 3, 3 ,.
Are rotatably moved through the driving gears 3a, 3a, ... meshed with each other, and the weight wheels 2, 3 ,. A circular motion is made around the rotation axis of the engaged weight wheel 3.

.. are provided with a twisting weight wheel and a grouping weight wheel. For example, the twisting weight wheel and the grouping weight wheel are alternately arranged in the vertical direction. The weights 2 are continuously arranged in a meandering manner such that they are continuous in adjacent rows in the lower part or the upper part, and the weight 2 moves in a predetermined position while making a circular motion about the rotation axis of the weight carrier wheel 3. Engagement with the grouped wheel assembly 3 is carried out such that the engagement with the wheel assembly 3 is moved to the adjacent wheel assembly 3 and the twisting wheel assembly and the grouped material assembly wheel assembly move vertically and horizontally. The legs are sometimes formed, and the crossing portions are formed when the legs are engaged with each other.

A guide is provided in the weight wheel group so that the weight and the weight wheel are not disengaged from each other. The guide is designed so that the upper part of a specific weight wheel 3 can remove the weight. It is a movable guide 4 that can be opened. In each of the weights 2,
The bobbin 6 around which the thread 5 is wound is accommodated, and the tip of the thread 5 is pulled out from the thread outlet 2 a and guided into the net receiving ring 1. Above the net receiving ring 1, there are two chuck mechanisms 7 each including a pair of holding bodies 7a, 7a which are brought into contact with and separated from each other, and actuators 7b and 7c which control the holding movements and vertical movements of the holding bodies 7a, 7a. Provided and thread 5
A cutting mechanism 8 is provided for cutting. Further, on the side of the braiding machine, a setup station 9 for holding a weight containing a bobbin that has completed bobbin waiting and a collection station 9a for collecting the removed weight are set. Between the receiving ring 1 and the bobbin exchanging mechanism 10 for gripping the weight 2 and transporting the weight 2 between the two.

The braiding machine formed in this way has weights 2, 2
..Each weight 2 in the net receiving ring 1 due to the combined movement of
The yarns 5 drawn out from the yarn discharge ports 2a of 2 ... are assembled and wound on a winder (not shown). When the thread 5 wound around the bobbin 6 reaches the set consumption amount during the braiding, the weight 2 accommodating the bobbin 6 in which the remaining thread is reduced is in a specific position (the weight 2 is a specific weight wheel 3 When the movable guide 4 reaches the position where it can be removed by opening the movable guide 4,
Once the braiding machine is stopped, the movable guide 4 is opened, the weight 2 accommodating the bobbin 6 in which the remaining yarn is reduced is grasped and removed by the bobbin exchange mechanism 10, and the yarn 5 is cut by the cutting mechanism 8. Carry out to collection station 9a (Fig. 2
A, b).

When the bobbin 6 (in the state of being housed in the weight 2) has been carried out to the collection station 9a, the bobbin exchanging mechanism 10 grasps the bobbin waiting at the setup station 9 and carries it into the braiding machine. Then, the movable guide 4 is closed and set. At this time, the chuck mechanism 7 operates the actuators 7b and 7c to pick up the feeding yarn tip of the new bobbin that has been set by the holding plates 7a and 7a (see FIG. 2).
C).

Subsequently, the bobbin accommodating the yarn to be twisted with the yarn of the exchanged bobbin is exchanged by using the other chuck mechanism 7 to rotate the carrier wheel half a turn by operating the braiding machine. After that, the same operation as described above is performed, whereby the set of bobbin changing operations is completed (a in FIG. 3).

When the operation of the braiding machine is restarted, the ends of the yarns wound on the exchanged bobbins are held by the chuck mechanism 7 so that they are twisted together (b in FIG. 3) and braided. Continues smoothly, and even if the yarn is released from the chuck mechanism after the formation of the intersecting portion 11, there is no fraying of the braid (FIG. 4). Therefore, if such bobbin exchange is performed between the end and the beginning of the network and that portion is discarded, the product will not be affected. If the bobbins are sequentially replaced in this way, it does not take much time to replace all the bobbins.

In this embodiment, the double-twisting braiding machine in which two yarns are twisted together to form one leg is explained. However, in three-twisting, if three chucks are provided. good. In addition, a plurality of bobbin automatic exchange devices of the present invention can be provided for one braid machine, and not only can the bobbin be attached and detached by opening and closing the movable guide, but also the bobbin on the weight side can be connected to the spindle wheel. A removal mechanism may be provided, and the point is that the bobbin can be removed together with the weight. Further, the exchange mechanism is not limited as long as it can remove the bobbin, carry it out to the collection station, and carry it in from the setup station to the set position.

Although the present invention is characterized in that everything is automated, there is an advantage that no knot work is required even when the same steps as those of the automatic exchange apparatus of the present invention are performed manually.

[0015]

According to the present invention, since the bobbin can be automatically replaced without a knot, the bobbin can be replaced in a short time with a simple bobbin replacement mechanism, and the number of personnel required for bobbin replacement can be reduced. , The operating rate will be greatly improved.

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing an outline of an automatic bobbin exchange device in a braiding machine according to the present invention.

FIG. 2 is an explanatory diagram showing a bobbin exchange process.

FIG. 3 is an explanatory diagram showing a bobbin exchange process.

FIG. 4 is an organization chart of an assembled fishing net.

[Explanation of symbols]

1 ... Net mesh ring, 2 ... Weight, 2a ... Thread exit port, 3
..Fluid wheels, 3a..Drive gears, 4, .Movable guides, 5
..Threads, 6 ..., bobbins, 7 ... chuck mechanism, 7a ...
Clamping plate, 7b, 7c ... Actuator, 8 ... Cutting mechanism, 9 ... Setup station, 9a ... Recovery station, 10 ... Bobbin exchange mechanism, 11 ... Crossover part, 12
··leg.

Claims (1)

[Claims] 1. A plurality of weights are arranged radially with respect to a center net receiving ring, and a bobbin wound with a thread is accommodated in the weight, and the thread is from the tip of the weight to the net receiving ring. A circular knotless braiding machine that sequentially pulls out into the inside and performs braiding in the net receiving ring by the combined movement between the weights, and a cutting mechanism that cuts the braided net terminal end of the yarn pulled out from the weight on the bobbin side. A bobbin exchange mechanism for removing the weight in which the bobbin is accommodated and setting a weight in which a new bobbin is accommodated, a chuck mechanism for picking up and holding the supply thread tip of the set new bobbin, and a desired bobbin When the bobbin exchange position is reached, the braiding machine is stopped, the braiding net end of the yarn pulled out from the tip of the weight by the cutting mechanism is cut on the bobbin side, the bobbin is exchanged by the bobbin exchanging mechanism, and then the chuck mechanism. By A control mechanism that controls the series of processes for picking up the yarn end of the new bobbin that has been set, restarting the operation of the braiding machine, and separating the yarn from the chuck mechanism after the new crossing part is formed is provided. Automatic bobbin exchange device for a circular knotless braid machine.