JPH0726301B2 - Nodeless braided net device with automatic bobbin changer - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a knotless netting device for braiding a knotless fishing net or the like, in which a weight containing a bobbin is radially arranged with respect to a central net receiving ring. , Of the group of spindles vertically and horizontally arranged along the outer periphery of the device, engages with either the twist spindle or the group spindle and revolves around, And a knotless braided netting device that moves between each other and braids in the netting ring.

[0002]

2. Description of the Related Art In the knotless netting apparatus, as shown in FIGS. 3A and 3B, weights 1 and 1'and weights 2 and 2'in which bobbins are accommodated.
Are respectively engaged with the twisting weight wheels 3 and 3 and are revolved by the rotation of the weighting wheels, whereby twisting is performed, whereby the leg portions 4 are formed. Further, the actuation of the guide valves 5 and 5 shifts the locking of the weights 1 and 1'and the weights 2 and 2'from the twisting weight wheels 3 and 3 to the set weighting wheels 3'and 3 '. Weights 1 and 1'and weights 2, which move to the wheels 3 and 3 and engage the twisting weight wheels 3 and 3,
2'is replaced so that an intersecting portion 4'is formed, and a large number of sets of such weights are arranged, and each spindle wheel is rotated at a constant speed throughout the entire process. To replace the bobbin in the knotless braid device, stop the braiding machine, pull out the bobbin in the weight, set a new bobbin, and tie the yarn pulled out from the tip of the weight to the yarn at the knitting end. As described above, changing the bobbin requires a troublesome knotting work, and all of them are manually performed.

[0003]

It is expected that anyone can operate the braiding machine at a high speed in order to improve productivity, but in the process of braiding the crossing section 4 ', the guide valve 5 is operated. Therefore, the upper limit of operating speed is naturally determined by the follow-up performance of the guide valve operation. However, since the guide valve 5 is not operated in the step of braiding the legs 4, it is possible to operate at a speed higher than that of the step of braiding the crossing portion 4'at that time. Therefore, it is a shackle for improving productivity that the operation speed is the same as that of the crossing net braiding process even during the leg braiding process capable of high speed operation. In addition, when replacing bobbins, it takes a huge amount of time to replace all of the hundreds of bobbins for each braiding machine while knotting them one by one. Since the bobbins are exchanged after the bobbin is stopped, the operating rate is extremely deteriorated and the productivity is lowered particularly when the bobbin exchanges are repeated in a plurality of braided machines. For this reason, there are many requests for automatic bobbin exchange, but in order to promote automation of such bobbin exchange, it is necessary to stop the spindle wheel at an appropriate fixed position, which is an obstacle. Was there.

[0004]

SUMMARY OF THE INVENTION The present invention is to solve the above-mentioned problems. The automatic bobbin exchange is automated, the bobbin exchange time is short, and the leg braiding process is performed at the crossover part. Since it can be operated at a higher speed than in the braiding process, and the weight can be stopped at any position, the bobbin can be replaced smoothly, and it is a knotless braiding device that does not require human labor. The configuration is such that a plurality of weights for accommodating bobbins wound with threads are arranged radially with respect to the center net receiving ring, and the threads are sequentially drawn out from the tip of the weight into the net receiving ring. A circular knotless braiding machine that braids in a mesh receiving ring by a combined movement between the weights, and stops the braiding operation when the weight containing the bobbin with less remaining yarn reaches the weight exchange position. Mechanism and the amount of residual thread A mechanism for exchanging the bobbin by removing the weight containing the broken bobbin and setting a weight containing a new bobbin, and a mechanism for cutting the thread pulled out from the tip of the weight during the bobbin exchange, An automatic bobbin changing device including a mechanism for picking up and holding the supply yarn tip of the bobbin in the set new weight and restarting the braiding operation is attached, and the NC drive twists at least the engagement with the weight. When decelerating the crossing part netting process that moves from the carrying wheel to the assembled carrying wheel or the opposite direction, when the bobbin replacement timing is detected and the weight containing the bobbin with less remaining thread reaches the weight replacement position. It is to stop the net operation.

[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. When the yarn is released after the formation of the portion, a yarn breakage occurs between the intersecting portions and the yarn jumps at a glance, but it is possible to continue the operation of the braiding machine without the need for knotting. In addition, by adopting the NC drive that can control the operating speed quickly and accurately, even if the braiding machine is operating at high speed during the braiding process of the legs, the guide valve operates when entering the braiding process of the crossing part. Will be decelerated until it can follow, and if the process of braiding the legs is resumed, it will be returned to high-speed operation, so the average operating speed will be dramatically improved, the braiding time will be shortened, and productivity will be improved. Furthermore, the bobbin replacement time is accurately detected, and the braiding machine is accurately stopped when the weight accommodating the bobbin that needs to be replaced reaches the weight replacement position. Can be exchanged.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The basic structure of a knotless network device according to the present invention is as follows.
As described in the above-mentioned prior art, the weight 1 containing the bobbin,
1'and the weights 2, 2'are engaged with the twisting weight wheels 3 and 3 and are revolved by the rotation of the weight wheels, whereby twisting is performed, thereby forming the leg portion 4 and guiding. Valves 5, 5
By the operation of, the locking of each of the weights 1 and 1'and the weights 2 and 2'is transferred from the twisting weight wheels 3 and 3 to the grouping weight wheels 3'and 3'and further to the twisting weight wheels 3 and 3. The weights 1 and 1'and the weights 2 and 2'which move and engage with the twisting weight wheels 3 and 3 are replaced with each other, thereby forming the intersecting portion 4 ', which is the same as the conventional one.

The present invention is characterized in the control of the braiding process. First, the embodiment will be described with reference to a flow chart. The knotless netting apparatus of the embodiment is provided with an automatic bobbin changing mechanism. When the operation of the braiding device is started, it is first judged whether or not it is the origin, and if it is not the origin, it is stopped. If it is the origin, then it is judged whether or not it is time to replace the bobbin.

If it is not the time to replace the bobbin, then the braid pattern is selected and the braiding is performed according to the selected braid pattern. In this braided net, as shown in FIG. 4, a process A for netting the crossing part, a process B for netting the legs, a process C for netting a part corresponding to the crossing part, and the netting for the legs again. Step B and step B are sequentially repeated. In such a one-cycle braiding, the step B of braiding the legs is operated at high speed,
The step A of meshing the crossing portion and the step of meshing the portion corresponding to the crossing portion are decelerating operation, that is, medium speed operation. As a result, one cycle of braiding is completed at the highest speed according to each process.

Whether the bobbin is to be replaced or not is determined here. If the bobbin is not to be replaced, the same one-cycle braiding network is executed again. If the bobbin is to be replaced, the bobbin replacement step is executed. . In the bobbin replacement step, one weight for replacing the bobbin is stopped at a fixed position during high-speed operation, and the bobbin is replaced. When the bobbin has been replaced, the bobbin wheel is rotated 180 degrees and the other bobbin is also replaced, and the braiding operation is executed, and the bobbin replacement step is repeatedly executed until the replacement of all bobbins to be replaced is completed. To be done. When all the bobbins to be replaced have been replaced, the initial state is returned to. By NC control of each process in this way, efficient high-speed operation at the time of braiding can be performed, and the weight can be quickly stopped at a fixed position in the middle of the high-speed braiding, so that bobbin exchange can be performed efficiently. Not only can it be done, but the advantages of automating the bobbin exchange are great.

Next, the bobbin automatic exchanging device will be described in detail. In this bobbin automatic exchanging device, as shown in FIG. 5, the bobbin is provided with a braided net end portion of the yarn 6 drawn out from the tip yarn discharge port 1a of the weight 1. A cutting mechanism 7 for cutting on the side, a bobbin transport mechanism 8 for removing the weight 1 containing the bobbin and setting the weight 1 containing a new bobbin, and picking up the supply thread tip of the new bobbin set. And a chuck mechanism 9 for holding it. More specifically, above the mesh receiving ring 10 located in the center of the braiding machine, a pair of gripping bodies 9a for contacting and separating and a gripping and separating of the gripping bodies 9a. Two chuck mechanisms 9 including actuators 9b and 9c for controlling operation and vertical movement are provided, and the yarn 6
A cutting mechanism 7 for cutting is disposed. Further, on the side of the braiding machine, a setup station 11 for holding the weight 1 accommodating the bobbin whose winding has been completed is on standby, and a collection station 12 for collecting the removed weight. Between the mesh receiving ring 10 and the moving rail 8a of the transport mechanism 8 that holds the weight 1 and reciprocates between the two are installed. In this embodiment, the setup station 11 and the collection station 12 are set at the same position.

The braiding machine formed in this way has the weights 1, 1
By the combined movement of .., the yarns 6 drawn out from the yarn discharge ports 1a of the weights 1, 1 ... In the net receiving ring 10 are netted and wound up by a winder (not shown). When the thread 6 wound around the bobbin reaches the set consumption amount in the middle of the braiding and the weight 1 accommodating the bobbin whose remaining thread is reduced reaches the fixed position, the braiding machine is once stopped and the remaining The weight 1 accommodating the bobbin whose yarn is reduced is grasped and removed by the transport mechanism 8, the yarn 6 is cut by the cutting mechanism 7, and the yarn 6 is carried out to the collection station 12. When the bobbin (in the state of being housed in the weight 1) has been carried out to the recovery station 12, the transfer mechanism 8 causes the setup station 11 to move.
The weight 1 containing the bobbin wound with a prescribed amount of thread waiting at is grasped and carried into the braiding machine, and at this time, the chuck mechanism 9
Then, by operating the actuators 9b and 9c, the tips of the thread 6 wound around the bobbin in the set weight 1 are picked up by the holding plates 9a and 9a. Then, the bobbin 6 to be twisted with the thread 6 of the replaced bobbin is replaced with the other chuck mechanism by rotating the pallet wheel half a turn by operating the braiding machine, and then executing the same procedure as described above. Then, the set of bobbin replacement work is completed. Then, when the operation of the braiding machine is restarted, the ends of the threads wound around the exchanged bobbins are held by the chuck mechanism and thus twisted together.
Since the braiding continues smoothly, even if the yarn is released from the chuck mechanism after the crossing portion 4'is formed, the braiding does not fray.

The series of operations described above are appropriately executed by exchanging signals between the bobbin exchanging mechanism and the NC driving device of the braiding machine. In this embodiment, the double-twisting braiding machine in which two yarns are twisted together to form one leg portion has been described. However, in three-twisting, three chucks are provided. Further, a plurality of bobbin automatic exchanging mechanisms shown in this embodiment can be provided for one braiding machine, and not only the bobbin can be attached / detached by opening / closing the movable guide, but also the bobbin wheel is attached to the weight side. An engagement / disengagement mechanism with and 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, and it can be performed manually without relying on the automatic exchange mechanism. .

[0013]

According to the knotless braided netting device of the present invention, the bobbin can be replaced automatically by the attached bobbin automatic exchanging device in a short time without the need for knotting. The number of personnel required for
The manufacturing cost can be reduced and the operating rate can be increased. In addition, the NC control can improve the average operating speed, accurately detect the bobbin replacement time, and accurately stop the weight to be replaced at the required position, so that the bobbin can be smoothly moved during the braiding operation. Exchange operations can be performed. Therefore, the knotless braided net device of the present invention can significantly improve productivity as compared with the conventional device.

[Brief description of drawings]

FIG. 1 is a flowchart of NC control in a network device according to the present invention.

FIG. 2 is a flowchart of NC control in the bobbin changing mechanism.

FIG. 3A and FIG. 3B are explanatory diagrams showing a process of a network.

FIG. 4 is a knitted mesh pattern diagram.

FIG. 5 is an explanatory diagram showing an outline of a braiding machine.

[Explanation of symbols] 1 ... weight, 1a ... thread exit, 2 ...
Weights, 3 ... twisting weight wheels, 3 '... grouped weight wheels, 4 ... legs,
4 '... Crossover part, 5 ... Guide valve, 6 ... Thread, 7 ... Cutting mechanism, 8 ... Conveying mechanism, 8a ... Moving rail, 9 ...
Chuck mechanism, 9a..Clamping member, 9b, 9c..Actuator, 10..Net receiving ring, 11..Setup station, 12..Collection station, A, B, C ..
Braiding process.

Claims (1)

[Claims] 1. Radial to the center net support ring,
A plurality of weights for accommodating bobbins wound with threads are arranged,
Pull out the thread from the tip of the weight to the mesh receiving ring
As a result of the combined movement between the weights,
A circular knotless netting machine that performs netting, and
When the weight containing the bobbin reaches the weight exchange position, the braided net
Mechanism for stopping operation and bobbin with less residual thread
A new bobbin was accommodated by removing the weight containing the
A mechanism to change the bobbin by setting the weight, and
Cut the thread pulled out from the tip of the weight during bobbin replacement
Mechanism and bobbin supply thread in new set weight
A mechanism for picking up and holding the tip and restarting the braiding operation
An automatic bobbin changing device including the
At least the engagement with the weight is from the twisted weight wheel to the assembled weight wheel or
Decelerates the crossing braiding process moving in the opposite direction
At the same time, when the bobbin replacement time was detected,
When the weight accommodating the bottle reaches the weight exchange position, operate the braiding.
No connection with bobbin automatic changer characterized by stopping
Bracket network device.