JPH02132065A - Shaftless bobbin winding device - Google Patents

Abstract

PURPOSE:To facilitate mounting and demounting of a bobbin through elimination of a shaft and to improve productivity by a method wherein through rotation of a rotary shaft for rotating a winding table turned in linkage with an eddy screw, lock of a bobbin, winding rotation, and unlock after winding are effected. CONSTITUTION:A rotary shaft 5 is reversed in a direction in which claws 2 and 2 are closed, and a bobbin 10 is placed on a winding table 1 as the claws 2 and 2 are inserted in a shaft hole 11 of the bobbin 10 in a state that the claws 2 and 2 are closed. The rotary shaft 5 is then started to rotate forward in a direction in which the claws 2 and 2 are opened. In which case, the rotary shaft 5 rotates forward an eddy screw 3 to open the claws 2 and 2, and is brought into contact with the inner wall of the shaft hole 11 of the bobbin 10 to stop movement. By means of the contact forces of the claws 2 and 2, the bobbin 10 is locked to the winding table 1. The bobbin 10 is rotated and winding of a linear substance is started, and when the linear substance is fully wound around the bobbin 10, rotation of the rotary shaft is stopped. Through reversing of the rotary shaft, the claws 2 and 2 are closed, the bobbin 10 is released from lock, and the bobbin 10 is removed down from the winding table 1.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a shaftless bobbin winding device capable of fixing a bobbin for winding a filamentous body such as an electric wire to a winding table without a shaft. It is. [Prior Art] A filamentous body such as an electric wire of 4 [11] size is wound onto a bobbin during the manufacturing process. In this winding, the bobbin is usually fixed to a rotatable winding table, and the table is rotated to rotate the bobbin and wind the filament. Conventionally, the bobbin has been fixed to the winding table by inserting a shaft into the shaft hole of the bobbin. In other words, the shaft is passed through the shaft hole of the bobbin, and a nut is tightened on the screw at the tip of the shaft to hold down and lock the brim of the bobbin, or the rod is inserted into the shaft hole of the bobbin placed on a table. One method is to turn a straight rod 90 degrees in that state and hook the pin provided on the shaft into the half-moon-shaped hole at the tip of the rod to lock it. [Problems to be Solved by the Invention] In the case of the above-mentioned method of inserting the bobbin into the shaft and tightening and fixing it with a nut, the nut is often so tightly tightened that it is difficult for the operator to remove it, making it difficult to remove it. In addition, it requires a worker to manually pull out a fully wound bobbin from the shaft, which poses a problem of poor work efficiency. In addition, with the method of inserting and fixing a rod into the shaft hole of the bobbin, it is necessary for the operator to rotate the inserted rod and fit the pin and pin six, and depending on the type of bobbin, this fitting process may be very difficult. It is often time consuming. To improve this, we installed a tapered handle at the tip of the rod.
Some bobbin shaft holes can be aligned and locked at the same time, but even bobbins of the same type have slightly different bobbin shaft holes. is not necessarily easy. In addition, as mentioned above, there was the problem of removing a fully wound bobbin, which was a major factor in reducing work efficiency. The purpose of the present invention is to solve the problems of the prior art as described above, eliminate the shaft that takes time and effort to attach and detach the bobbin,
It is very easy to attach and detach the winding bobbin, increasing work efficiency.
The object of the present invention is to provide a bobbin winding device that can reduce the working time and improve productivity. [Means for Solving the Problems] The present invention provides a bobbin lock that can be inserted into the shaft hole of the bobbin and can be opened and closed in the radial direction of the bobbin, on the top surface of the winding table on which the bobbin is placed and rotated. protruding claws,
The claw is opened and closed by forward and reverse rotation of a vortex screw engaged with the claw, and furthermore, the rotation of the vortex screw is linked to a rotating shaft for rotating the winding table.
By rotating the rotary shaft forward and backward, the bobbin can be locked, the winding can be rotated, and the bobbin can be unlocked after winding.

[Function J: Placing the bobbin on the winding table while inserting it into the shaft hole with the claw closed is much easier than inserting the shaft or rod. For example, if the pawl contacts the inner wall of the shaft 6 and the bobbin is locked by that alone, the pawl can be opened and closed using the driving force of the rotating shaft that rotates the winding table. By starting the rotary shaft, the pawl is first locked in the shaft hole, and with this locking, the driving force of the rotary shaft is transferred to the rotation of the take-up table, which rotates the bobbin. As a result, no human power is required. Bobbin locking and winding rotation are achieved simultaneously without any problems. [Example] The present invention will be described below with reference to the drawings of the example. The figure is an explanatory sectional view showing the specific configuration of the bobbin winding device according to the present invention. In the figure, 2 is provided protruding upward from the winding table 1;
A plurality of pawls (one in the figure) that can be inserted into the shaft hole 11 of the bobbin 10
(only one is shown).

The claw 2.2 moves the bobbin 1 around the shaft hole 11 of the bobbin 10.
The claws 2.2 (for example, three claws arranged at an angle of 120 degrees) are configured to be able to move forward and backward in the radial direction of 0. 3 is a vortex screw that engages with a concave-convex engaging portion 2a formed on the bottom of the pawl 2, and the vortex screw 3 points in the forward direction (the opening direction of the pawl), which is the direction in which the pawl opens. The pawl 2.2 engaged therewith is opened by being rotated in the clockwise or counterclockwise direction, and the pawl 2.2 is closed by being rotated in the opposite direction. In this configuration, since the pawl 2.2 opens and hits the shaft hole 11, and a large load is applied when locking or unlocking the bobbin 10, the threaded portion is a square screw for feeding only. It is preferable to use cast iron as the material for the locking side in order to reduce the galling load. In the present invention, the method by which the vortex screw 3 is rotated forward and backward is a matter of design, and may be changed as necessary. Just choose as appropriate. However, from the point of view of efficiency, it is most preferable to connect the winding table 1 provided on the support base 4 side to the rotary shaft 5 for rotating it and to utilize the rotational force thereof. That is, as shown in the figure, the vortex screw 3 is connected and fixed to the head of the rotating shaft 5, so that the rotation of the rotating shaft 5 directly corresponds to the rotation of the vortex screw 3. Rotating shaft 5ft! I and the winding table 1 side are configured so that they can rotate relative to each other using a bearing 6. A case will be described in which a filament (not shown) is wound onto the bobbin 10 using the bobbin winding device configured as described above. First, rotate the rotating shaft 5 in the opposite direction in the direction in which the pawl 2.2 closes, and while the pawl 2.2 is closed, the shaft hole 1 of the bobbin 10
The bobbin 10 is placed on the winding table 1 while inserting the claws 2, 2 through the winding table 1. Needless to say, this work is much simpler than the above-mentioned case of inserting a bobbin into the shaft or further inserting a rod. After the bobbin 10 is set on the winding table 1 as described above, the rotary shaft 5 is started to rotate forward in the direction in which the claws 2.2 open. Thus, the rotating shaft 5 rotates the vortex screw 3 in the forward direction, thereby opening the pawl 2.2, which abuts against the inner wall of the shaft hole 11 of the bobbin 10, thereby stopping its movement. The bobbin 10 is locked to the winding table 1 by the contact force of the claw 2.2. Until the bobbin 10 is in the locked state, the rotational force of the rotating shaft 5 is used to move the claw 2.2. , does not serve as a rotational force to the winding table 1. However, nail 2.2
is locked as described above, so that the rotating shaft 5
The rotational force is directly transferred to the rotational driving force of the winding table 1, the bobbin 10 is rotated, and winding of the wire east body is started. When the bobbin 10 is fully wound, stop the rotation of the rotating shaft, then rotate it in the opposite direction, and the pawl 2.2 will close.
Since the lock of the bobbin 10 by the claw 2.2 is released,
Simply lower the bobbin 10 from above the winding table 1. Needless to say, the work of lowering the bobbin IO is much easier and faster than the work of removing it from the shaft in the conventional example described above. As described above, according to the present invention, the operator only has to do the work of raising and lowering the bobbin onto the winding table (this work can easily be done by mechanical force), and the bobbin can be locked. The locking and unlocking are all achieved by rotating the rotary shaft in the forward and reverse directions, and as mentioned above, after locking the bobbin, the bobbin can be rotated while applying the locking force, and its efficiency and labor saving are noteworthy. It can be said that it is worth it. Note that if the outer surface of the pawl 2 is formed into a tapered surface that contacts the inner wall surface of the shaft hole 11 of the bobbin 10 at an angle T, or if the surface is further knurled, the locking effect of the pawl 2 on the bobbin 10 can be improved. As the size increases, the shape of the claw 2 can be made smaller accordingly, which has the advantage of further increasing the ease of work. As the motor for driving the rotating shaft, it is appropriate to use a torque motor in order to prevent excessive force from being applied to the claws and the filament to be wound. [Effects of the Invention] As described above, according to the device according to the present invention, the shaft, nuts, and rods for fixing the bobbin are completely eliminated, so that the bobbin can be attached and detached with one touch, making it simple and quick. The ability to perform simple setups has a significant effect on labor savings and productivity improvements, and the shaftless structure also contributes to smoother rotation, which contributes to winding performance and, ultimately, to improved quality of the wound wire material. It has great industrial value, such as the ability to use simpler robots in robot-based factory automation.

[Brief explanation of the drawing]

The figure is an explanatory sectional view showing an embodiment of the device according to the present invention. 1: Winding table, 2: Pawl, 3: Vortex screw, 5: Rotating shaft, 10: Bobbin,

Claims (2)

[Claims] (1) A plurality of bobbin fixing claws are installed that protrude from the upper surface of the winding table on which the bobbin is placed and rotated, and the plurality of claws can be inserted into the shaft hole of the bobbin, and the claws can be inserted in the radial direction of the bobbin. In the winding device, the winding device is configured to move forward and backward, and when moved forward, the winding device is configured to come into contact with an inner wall of the shaft hole of the bobbin and lock the bobbin to the winding table. A shaftless bobbin winding device configured such that the engagement portion is engaged with an engaging portion formed at the bottom of a pawl and can be wound by a spiral screw rotating parallel to the bottom surface of the pawl. (2) In the device according to claim 1, a vortex screw is connected to the end of the rotary shaft that applies rotational force to the winding table, and when the rotary shaft is rotated in the forward direction, the vortex screw at the end also rotates in the forward direction at the same time, so that the winding table is rotated. is configured to open the bobbin, thereby locking the bobbin and allowing the bobbin to rotate;
This shaftless bobbin winding device is constructed so that when a rotary shaft is rotated in the opposite direction, the vortex screw also rotates in the opposite direction to close the claws and release the lock of the bobbin by the claws.