JPH0137768Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a wire guiding device in a polling type winder.

(Prior art) Conventionally, a polling winding machine has generally been used to wind up thick wire rods (φ15 or more), and as shown in Fig. This was done by guiding the wire between the inner pin of the reel and the outer drum 3, bending it by the outer drum, and winding it into a coil 4. As a result, the wire is wound with a constant curvature that corresponds to the volume velocity, making it impossible to effectively utilize the width between the inner pin and the outer drum.The coil height increases, and if it is higher than the reel height, it will overflow. . Further, in such a driving method, the wire end portion 1' stands up, and the end portion is ultimately free, so that it has a straight line shape. Figure 7 shows the situation. The rising end of the coil eventually hangs down to the outside of the coil as shown in FIG. 8, causing various troubles during transportation to the next process.

In order to solve such problems, the special public
Although it has been proposed to make the driving tube variable, as proposed in Japanese Patent Application No. 2003-120009, it has not yet become a complete solution.

(Problems to be solved by the invention) A good coil winding shape cannot be obtained with a method using only a driving tube, and the device disclosed in Japanese Patent Publication No. 12830/1983 requires a larger device and a drive device that is more than necessary. However, there are drawbacks such as a large size and a deep foundation, which leads to an increase in equipment costs. The present invention eliminates these drawbacks, and has excellent functions that can increase the degree of filling in the winder reel and also improve the tail end treatment of the coil.

(Means for Solving the Problems) The present invention is a bending device that is located immediately before a wire winding machine and is constructed of a combination of rollers and a swing cylinder instead of a conventional driving tube. The purpose of this is to give the wire rod an appropriate bending curvature and drive it into the reel of the cutting machine.

Hereinafter, the present invention will be explained in detail with reference to the drawings.

FIG. 1 is a plan view of an embodiment of the device showing the configuration of the present invention, FIG. 2 is a plan view of the device showing another example of the configuration,
FIG. 3 is an explanatory diagram showing an embodiment of winding a wire using the device of the present invention, and FIG. 4 is an explanatory diagram of the operation.

In FIG. 1, reference numeral 5 indicates a wire introduction guide, and reference numeral 6 indicates guide rollers for guiding the wire 1 to the reel 3 of a winding machine, which are provided in a plurality of pairs so as to sandwich the wire. A tip roller 7 is used to give a bending curvature to the wire introduced by the guide roller 6. It is desirable that both rollers be grooved rollers so that the corresponding wire rods do not easily slip off.

Reference numeral 8 denotes a swing cylinder, which has the function of rapidly moving the tip roller 7 forward and backward. For example, a cylinder whose position can be precisely controlled, such as a servo hydraulic cylinder or an electric cylinder, is suitable. Reference numeral 9 denotes a guide that allows the tip roller 7 to move smoothly. FIG. 2 shows another configuration example, in which the tip roller 7 is supported by the link arm 10 so as to be movable forward and backward. 11 indicates a fulcrum pin.

The guide roller 6 not only guides the wire to the winding machine reel, but also prevents the overall position of the wire from changing due to the protrusion of the tip roller 7.
It is installed to give curvature to the wire between the
The guide roller 6 is desirably composed of multiple rolls to ensure a predetermined curvature when the tip roller 7 protrudes to give the wire a curvature. ,
It is possible to further improve the curvature accuracy by operating the pair of rollers at each stage with a fluid-operated cylinder or the like to pinch the wire and prevent the wire from wobbling.
By driving the guide roller 6, it is possible to overcome the bending resistance of the wire rod by the tip roller 7, and add a function to reliably guide and feed the wire rod, making it possible to wind up wire rods with high rigidity and larger diameters. It can be made possible.

The example in Figure 2 uses a rotatable pin as a fulcrum, and the tip roller moves in an arc as the stroke of the cylinder 8 changes, but the function is basically the same as that in Figure 1; The only difference is that the position of the roller is non-linear and requires some consideration in position specification control.

Note that the tip roller 7 is shown in Figs. 1 to 4, especially in Fig. 3.
As can be seen from the figure, a feature of the device of the present invention is that the reel is tilted within the reel with respect to the vertical axis of the reel 3 of the winding machine, so that the curvature of the wire rod can be changed periodically from the horizontal direction. .

(effect) Next, the operation of the present invention will be explained.

The wire rod 1 is guided by a guide roller 6 and driven into the reel 3, but since the wire rod coming out of the guide roller moves straight in a straight line, it pushes out the tip roller 7 and gives a bending curvature to the wire trying to move straight. At this time, the curvature given to the wire can be changed depending on the degree of extrusion by the tip roller 6. Therefore, if the tip roller 6 is advanced or retreated as shown by the arrow 12, the curvature of the wire to be driven into the reel 3 can be changed periodically accordingly.

This is extremely advantageous when performing proper driving in response to an attempt to improve the degree of filling of the reel with wire by periodically changing the rotational speed of the reel. This situation will be explained with reference to FIG.

Figure 4a shows a state in which the reel is wound outward from the standard reel winding diameter, Figure 4b shows a state in which it matches the standard reel winding diameter, and Figure 4c shows a state in which it is wound inward from the standard reel winding diameter. show. In the outer winding state of FIG. 4a, that is, when the reel rotation speed is lower than the reel rotation speed that matches the wire speed, the tip roller 7 is positioned rearward by the cylinder 8 to reduce the amount of bending to the wire rod 1 during winding. The wire has a large curvature, giving it a curvature that corresponds to the bending curvature when it becomes a coil. As the reel rotation speed increases, the winding diameter becomes smaller, that is, the bending curvature becomes smaller, and as shown in FIGS. 8 to increase the bending amount to the wire 1 and reduce the wire bending curvature. On the other hand, when the reel rotational speed decreases, that is, when winding from an inward winding state to an outer winding state, the steps in FIGS. This makes it possible to provide a bending curvature that corresponds to the winding diameter.

Further, since the terminal end of the wire can be given the same bending curvature as described above, it can be wound so as to be securely placed on the upper surface of the wire coil 4, as shown at the terminal end 1'' in FIG. .

(Effects of the invention) According to the invention, it is possible to give the wire rod an appropriate curvature without any difficulty, so even large diameter wire rods and high rigidity materials such as low-temperature winding can have an extremely good winding shape and a high packing density. Can be wound into a coil. Also,
There is less impact on the reel due to the tip of the wire moving straight, and furthermore, the shape of the tail end of the coil can be well accommodated within the coil frame, so there is no trouble in transporting it to the next process, and productivity is increased. Moreover, these effects can be maximized with low equipment costs, making it an extremely useful invention in industry.

[Brief explanation of the drawing]

FIG. 1 is a plan view showing the configuration of an embodiment of the present invention, FIG. 2 is a plan view showing an example of the configuration of another embodiment of the device, FIG. 3 is an explanatory diagram showing an embodiment of the present invention, and FIG. a, b, and c are operation explanatory diagrams showing the application form of the present invention; FIG. 5 is a perspective view showing a wire coil obtained by the device of the present invention; FIG. FIGS. 7 and 8 are explanatory diagrams showing the form of the end of the wire in conventional winding. 1: Wire rod, 1', 1'': Wire rod end, 2: Driving tube,
3: Reel, 4: Wire coil, 5: Introduction guide,
6: Guide roller, 7: Tip roller, 8: Swing cylinder, 9: Guide, 10: Link arm,
11: Fulcrum pin.

Claims (1)

[Scope of utility model registration request] A guide roller that guides the wire to a winding machine, a tip roller that is located downstream of the guide roller and whose position can be changed to give a bending curvature to the wire, and a position of the tip roller that can be freely changed during winding of the wire. The wire rod is composed of a direct-acting cylinder, and the tip roller is inclined in the reel with respect to the vertical axis of the reel of the winding machine, so that the curvature of the wire rod can be changed periodically from the horizontal direction. Bending roll device for wire rod winding machine.