JPH022544Y2 - - Google Patents

Description

[Detailed explanation of the idea] [Industrial application field] The present invention relates to a winding device for long solder wire.

[Conventional technology]

Solder wires with a wire diameter of 1 mm to 0.2 mm are usually used, and some have pine needles inside and others do not. In either case, it has the disadvantage of being weak against tensile force because it is soft and has a very high specific gravity. Therefore, conventionally, when winding onto a bobbin, a relatively short solder wire 4 is wound around a bobbin 3 having flanges 2 on both sides of the body 1 as shown in FIG. 3, and this bobbin 3 can be rotated around its axis. It is used by supporting it so that the solder wire is pulled little by little while rotating and unwinding the bobbin 3.It is usually used with a diameter of 0.8 mm to 0.5 mm and weighs 1 kg, or about
The limit of winding was about 250 m to about 570 m. In other words, if the wire is wound longer than this, the solder wire will often break when drawn during use.

[Problem that the invention attempts to solve]

Therefore, the applicant has developed a bobbin as shown in FIG.

This will be explained according to the diagram. The figure is a cross-sectional view, and the first winding of the solder wire 4 is started from the end with the collar 5 of the winding bobbin 6, which has a collar 5 attached to one end and an open end with no collar attached to the other end. The brim 5 is made by winding only a few rows of the brim, then winding the second winding a slightly larger number of rows than the first winding, and then increasing the number of windings towards the end where the brim 5 is not present. This is a winding bobbin that winds solder wire so that the number of windings to be wound around the diameter of the other end is reduced.

According to such a winding bobbin, the bobbin can be installed in a fixed state, and by pulling the solder wire 4 from the end without the collar 5, it can be pulled out without resistance, and the size of the bobbin can be adjusted. Even if a very long solder wire is wound up to suit the purpose, there will be no accident of it being cut during use.

However, at present, as mentioned above, there is no automatic winding device for winding the solder wire onto a bobbin, so the only way is to wind it by hand.

[Means for solving problems]

In this invention, a shaft is provided with a guide pulley for the solder wire to be wound on the bobbin, an interlock is attached to this shaft, and a screw hole body attached to the end of the interlock is connected to a traverse screw that rotates forward and backward using a motor. A switching lever is attached to this interlocking element, and the switching lever is moved back and forth between a moving limit switch that moves little by little by a constantly rotating switching screw and a fixed limit switch at the end to switch both limit switches. It is characterized by being able to operate.

[Effect]

According to the above configuration, the shaft is moved via the interlocking element by the rotation of the traverse screw, and the guide for winding the solder wire onto the bobbin is operated to wind the solder wire. At this time, the switching lever is also kept constant. the traverse screw is rotated in the opposite direction to wind the solder wire in the opposite direction, and the fixed limit switch is actuated by the interlocking element to rotate the traverse screw in the forward direction again. Since the switching screw continues to rotate during the above operation, the position of the travel limit switch is ahead of the position at which the travel limit switch is activated. Therefore, since the position at which the travel limit switch operates this time is shifted from the previous position, the guide pulley moves by that amount this time, so the number of turns of the solder wire will be greater than the previous number of turns. Become. By repeating such an operation, it becomes possible to wind a number of windings on the bobbin with successively increasing numbers of windings.

〔Example〕

An embodiment of the present invention will be described below with reference to FIG. The drawing is an explanatory side view, in which
7 is a winder which can rotate in a fixed direction. 8 is a bobbin attached to this winding machine 7. A shaft 9 is attached to the frame 10 so as to be movable in the axial direction. A guide pulley 11 is attached to the shaft 9 and is arranged opposite to the bobbin 8. 12 is an interlocking element fixed to this shaft 9.

A traverse screw 13 is rotatably attached to the frame 10 via a bearing 14. 1
Reference numeral 5 designates a screw hole body screwed into this traverse screw 13, and is connected to the interlocking element 12 by a connecting shaft 16. A variable machine 17 is connected to the traverse screw 13 and adjusts the rotational speed of the motor 18.

19 is a switching screw, which is attached to the frame 10 via a bearing 20. A fixed limit switch 21 is fixed to one side of the switching screw 19 and has a contact point facing inward. 22 is a winding stopper switch, which is fixed to the other side of the switching screw 19 and has a contact point facing inward. Reference numeral 23 designates a travel limit switch, which is movably screwed onto the switching screw 19, and is secured to the fixed rail 2 so as not to rotate.
It is designed to move along 4.

A gear 25 is attached to the end of the switching screw 19. Reference numeral 26 denotes a transmission, and a gear 27 is connected to one side thereof, and this gear 27 meshes with the gear 25 described above. 28 is a motor connected to the transmission 26.

Reference numeral 29 denotes a switching lever, which is attached to the screw hole body 15 and is disposed oppositely so that its tip operates the contacts of the fixed limit switch 21 and the movable limit switch 23.

Next, the operation of the above configuration will be described. First, the rotational speed of the switching screw 19 is kept constant at a very slow rotational speed, for example, about one-tenth of the rotational speed of the traverse screw 13.

The state of the drawing is set as the start state. The switching lever 29 operates the fixed limit switch 21, causing the motor 18 to rotate the traverse screw 13 in the direction of arrow A. Then, the interlocking element 12 moves in the direction of arrow C through the screw hole body 15, and moves the shaft 9 in the direction of arrow C. As a result, the guide pulley 11 moves and the brim 8 is attached to the rotating bobbin 8.
Wind the solder wire 4 in the same row starting from the side marked a. At the same time, the switching lever 29 is also moved and advances toward the travel limit switch 23 located at a predetermined position, and this contact is eventually operated. Then, by operating the movement limit switch 23, the drive rotation of the motor 18 is reversed. This causes the traverse screw 13 to rotate in the B direction. Then, the interlocking element 12 moves in the D direction, the shaft 9 also moves in the D direction, and the guide pulley 11 is moved in the same direction. As a result, from the position where a predetermined number of windings have been made on the bobbin 8, the winding is returned to the side of the collar 8a and is wound on top of the rows wound as described above.

Due to this movement, the switching lever 29 is also
the fixed limit switch 21.
operate the contacts. Then, the fixed limit switch 21 is operated to change the direction of rotation of the motor 17, causing the traverse screw 13 to rotate in the A direction. Incidentally, up to this point, the switching screw 19 continues to rotate slowly in a fixed direction, and the position of the movement limit switch 23 gradually advances in the direction of arrow E. By rotating the traverse screw 13 in the A direction, the shaft 9 is moved again in the C direction and the guide pulley 11 is moved in the C direction, but the amount of movement is greater than the amount of movement in the C direction described above because the movement limit switch 23 is moved. The more there are, the more volumes there are, and the number of volumes this time will be greater than the number of volumes last time. Then, the switching lever 29 operates the contacts of the movement limit switch 23 to switch the rotational direction of the motor 18 again, thereby winding the solder wire 4 again toward the collar 8a.

By repeating the above operations, the moving limit switch 23 operates the winding stopper switch 22, and the winding is completed. Then, the motor 28 is rotated in the reverse direction to return the travel limit switch 23 to its original predetermined position, and the motor 18 is rotated to remove the screw hole body 15.
also return to its original position.

In the above operation, the rotational speed of the traverse screw 13 is adjusted by the transmission 17 in accordance with the rotational speed of the winder 7, and the rotational speed of the switching screw 19 is adjusted in accordance with the rotational speed of the traverse screw 13. Determine the number of turns to increase and adjust accordingly.

[Effect of idea]

According to the present invention described in detail above, a guide is attached to the end of the shaft on which an interlocking element connected to a threaded hole body screwed into a traverse screw is attached, and a switching lever attached to this interlocking element is further attached to the switching screw. By moving back and forth between the fixed limit switch and the movable limit switch to increase the number of turns little by little, the solder wire can be wound in only a few rows from the flange end. It is easy and simple to wind up the second winding bobbin by winding the second winding by slightly more rows than the first winding, and increasing the number of windings sequentially toward the end without the brim. Since it is constructed with a mechanism, it is easy to manufacture and has few failures.

[Brief explanation of drawings]

Figure 1 is a side view showing one embodiment of the present invention;
The figure is a cross-sectional view of a winding bobbin, and FIG. 3 is a cross-sectional view showing a conventional bobbin. 7... Winder, 8... Bobbin, 9... Shaft, 11... Guide pulley, 12... Interlocking element,
13... Traverse screw, 15... Screw hole body, 1
8... Motor, 19... Switching screw, 21... Fixed limit switch, 22... Winding stopper switch, 23... Moving limit switch, 28...
Motor, 29...Switching lever.

Claims (1)

[Scope of utility model registration request] A shaft is provided with a guide pulley for the solder wire to be wound onto the bobbin, an interlocking element is fixed to this shaft, and the threaded hole body attached to the end of this interlocking element is screwed into a traverse screw which is rotated forward and backward by a motor. Furthermore, a switching lever is attached to this interlocking element, and this switching lever is moved back and forth between a moving limit switch that moves little by little by a switching screw that is constantly rotating, and a fixed limit switch that is fixed to the end of this switching screw. A solder wire winding device characterized in that the direction of rotation of the traverse screw is switched by alternately operating a limit switch.