JP2510305Y2 - Winding terminal twist device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a twist device for reinforcing a lead wire of a coil, and more particularly, to a twist length at a winding end of a coil and a starting end at which a coil is next wound. The present invention relates to a twist device for a winding end that can be set.

[Conventional technology]

In recent years, an extremely small-sized coil has been used along with the large-scale integration of electronic circuits, and a wire rod used for winding has also been used with an extremely small diameter due to the downsizing. In addition to a small coil, a wire having a small diameter is often used for winding depending on the purpose of use.
When winding with such a thin wire, the terminal drawn out as a connection terminal with another electronic component is easily soldered to the lead wire of another electronic component as it is because the mechanical strength is weak, so it is easy to break. Also, due to the small diameter, it is not easy to twist and connect. For this reason, conventionally, such a coil lead wire is formed by pulling the wire rods a plurality of times and bundling them, and further twisting this portion to make the lead-out terminal a large diameter overall and increasing the mechanical strength. To facilitate the work of twisting and connecting with the lead wires of other electronic parts,
Also, it is made difficult to disconnect when soldering. As such a twisting device, the present applicant has already filed Japanese Patent Application No.
-333418 and Japanese Patent Application No. 1-2221745. In any twist device, a hooking pin that is arranged at an appropriate interval in the vicinity of a wire rod that is fed toward the automatic winding machine and that is rotationally driven in opposite directions,
It has a dragging member that engages with the wire rod and circulates between the hooking pins, and hangs the wire rod between the hooking pins a proper number of times. Then, in a state in which the wire pulling member engages the wire rod fed to the automatic winding machine, the wire rod is circulated between the hooking pins and the wire rod is dragged between the hooking pins a plurality of times. Then, either one or both of the hooking pins is rotated in the opposite direction to be twisted and twisted.

[Problems to be solved by the device]

However, as shown in FIG. 12, the conventional twisting device twists the winding end as well as the starting end to be processed next, and then cuts at the center. Only the lengths l ₁ and l ₂ that are actually required as.
However, when processing by pinching the end of the winding,
It requires a length of l ₀ , but in reality, only l ₀ −l ₁ + l ₂ extra wire is twisted, so not only does the twisting time require a lot of time, but also mechanical stress is required. However, there is also a problem that it is easy to accidentally bend or disconnect due to fatigue.

In view of the above circumstances, the present invention reduces the processing time and adds extra mechanical stress by twisting only the required end of the winding and the starting end of the next winding. It is an object to provide a twisting device of no winding terminal.

[Means and Actions for Solving the Problems]

The present invention has been made in order to achieve the above-mentioned object, and is provided with a hooking pin which is arranged at an appropriate interval in the vicinity of a wire rod fed toward an automatic winding machine and which is rotationally driven by a predetermined number of rotations. In a twisting device for a winding terminal, which comprises a wire rod and a pulling member that circulates between the hooking pins and drags the wire rod between the hooking pins a suitable number of times, After wrapping around the hooking pins in a hooked state and squeezing them between the staking pins a specified number of times, twist the wire length after the shunting at a position that is a specified length away from each hooking pin The restricting member is sandwiched, and then each hooking pin is rotated so that the wire rod laid between the respective hooking pins and the twist length restricting member is twisted.

〔Example〕

An embodiment of a twisting device for a winding terminal according to the present invention will be described below with reference to the drawings. In FIG. 1, 1 is a frame. An original wire spool is arranged on the right side of the frame 1 in FIG. 1, and an automatic winding machine for automatically winding a coil is arranged on the left side. Frame 1
A nozzle 3 having a plurality of first hooking pins 2 at its tip is rotatably supported at the left end of the. The first hooking pin 2 corresponds to the number of coils that can be simultaneously wound on the automatic winding machine side. The nozzle 3 has an insertion hole through which the wire rod is drawn out toward the automatic winding machine side. A timing pulley 4 is provided at the base end of the nozzle 3 which projects outward from the frame 1, and a timing belt 7 is wound around with a tension pulley 5 interposed as appropriate, and is rotated by a motor 6.
A positioning return device 8 is interposed on the timing belt 7. The positioning return device 8 has a timing pulley 9 around which the timing belt 7 is wound as shown in FIGS. 1 and 2, and the heart-shaped cam 10 is attached to the timing pulley 9.
Are integrally fixed, and the cam 10 is pressed by the air cylinder 11 to return the first hooking pin 2 downward. The rotation speed of the first hooking pin 2 is detected by the sensor 12 and controlled. A screw rod 13 is rotatably supported between both ends of the frame 1. The screw rod 13 can be rotated by a handle 14 fixed to the base end protruding outward from the frame 1. Movable substrate for screw rod 13
Screw 15 together. A nozzle 17 having a plurality of second hooking pins 16 is rotatably supported on the movable base 15. The second hooking pins 16 are arranged in the same number as the first hooking pins 2 and so as to face each other. A timing pulley 18 is provided at the base end of each nozzle 17, and a timing belt 20 is wound around with a tension pulley 19 interposed as appropriate, and is rotated by a motor 21. A positioning return device 22 having the same structure as that described above is interposed in the timing belt 20. The second hooking pin 16 is rotatably supported in the slit structure at the tip of the nozzle 17, and is held loosely in the nozzle 17 and elastically biased by a spring, as shown in FIG. The tip of the nozzle is pressed to face the direction orthogonal to the nozzle 17. The pressing plate 17a is pressed against the nozzle 17 by the release plate 23, and the second hooking pin 16 is moved to the nozzle.
It can rotate freely at the tip of 17. Release plate
23 is movable by an air cylinder 24 installed on the movable base 15, and when this is moved, the pressing cylinder 17a
The second hooking pin 16 can be released from being pressed by the pressing cylinder 17a. First hook pin 2
A reciprocating table 26 provided with a pulling member 25 is disposed between and the second hooking pin 16. The reciprocating table 26 is screwed onto a screw rod 27 rotatably supported on the frame 1. A timing pulley 28 is provided at the base end of the screw rod 27, and is connected to a timing pulley 30 on the motor 29 side by a timing belt 31. As shown in FIGS. 1 and 4, the reciprocating table 26 can be reciprocated by the rotation of the screw rod 27 by being guided by the guide rods 32 installed between both ends of the frame 1. 2 in the direction orthogonal to the screw rod 27 on the reciprocating table 26.
A book guide rod 34 is provided, and a pulling table 34 that is reciprocally moved by being guided by the guide rod 34 is mounted. The pulling table 34 is connected to the air cylinder 35 and reciprocates. The pulling table 34 is shown in FIGS.
As shown in the drawing, the same number of pulling members 25 as the first hooking pins 2 and the second hooking pins 16 are pivotally supported.
The pulling member 25 has a shape in which a wire having a predetermined thickness is formed into a helical shape, and each has a pinion 36, and the pinion 36 is meshed with the rack 37. The rack 37 is movably mounted on the reciprocating table 26. The rack 37 is connected to the air cylinder 38. The air cylinder 38 is installed on the reciprocating table 26. The lower ends of the first hooking pin 2 and the second hooking pin 16 are arranged so as to be located between the uppermost wire diameters of the dragging member 25 as shown in FIG. Between the first hooking pin 2 and the second hooking pin 16, chucks 39 and 40 are arranged above the reciprocating pulling member 25. The chucks 39 are installed on the mount 41 whose distance can be adjusted with respect to the first hooking pins 2 in the same number as the wire rods to be drawn. Also chuck 40
Is a mount whose spacing can be adjusted with respect to the second hooking pin 16.
There are as many as 42 wires installed on the 42nd. As shown in FIG. 7, each of the chucks 39, 40 operates so as to chuck the wire rods drawn up by the air cylinders 43, 44. The mounts 41, 42 are mounted on the frame 1 so that they can be moved up and down by the air cylinders 46, 47 and can be moved between both ends of the frame 1 manually or automatically by an air cylinder or a motor.

Next, the operation of the twisting device for the winding terminal having the above configuration will be described. First, the positions of the mounting bases 41 and 42 are adjusted in advance so that the distances from the first hooking pin 2 and the second hooking pin 16 correspond to the distances l ₁ and l ₂ shown in FIG. . Then, after winding a set number of turns by the automatic winding machine, each of the pulling members 25 is moved so as to surround the first hooking pin 2 and the second hooking pin 16 and to circulate. That is, the reciprocating table 26 is reciprocally moved between the first hooking pin 2 and the second hooking pin 16 by the drive of the motor 29, and the air cylinder 35 is operated at the limit point of the movement so that the reciprocating table 26 is pulled up. Stand 34
Is moved in a direction orthogonal to the moving direction of the reciprocating table 26, whereby the squeezing member 25 circulates so as to surround the first hooking pin 2 and the second hooking pin 16. This will be described with reference to FIGS. 8 and 9. Prior to the start of the dragging operation, the dragging member 25 is at the position (a) and the direction of the wire rod 45 extends between the nozzles 3 and 17. It is set so that it can engage with. Here, the reciprocating table 26 moves toward the first hooking pin 2, and the pulling table 34 moves toward the position (c) at the position (b) of this movement limit point. The pulling member 25 catches the wire 45 extending between the nozzles 3 and 17. Then, the reciprocating table 26 goes from (c) to (d) to (e). At this time, as shown in FIG. 10, since the lower end of the first hooking pin 2 is positioned within the wire diameter t of the dragging member 25, the nozzle of the wire rod 45 that hooks on the dragging member 25. Only the portion toward the 17 side engages with the first hooking pin 2, and the portion from the lower side of the squeezing member 25 toward the nozzle 3 is delivered to the nozzle 3 as it is without engaging with the first hooking pin 2. . When the pulling member 25 reaches the position (e), the pulling table 34 moves back to the position (f). At this time, since the lower end of the second hooking pin 16 is located within the wire diameter t of the pulling member 25, only the portion extending from the upper side of the wire rod 45 that hooks on the pulling member 25 is similar to the above. Hangs on the second hooking pin 16. Further, from this state, the reciprocating table 26 is moved toward (a), and the wire rod 45 is moved between the first hooking pin 2 and the second hooking pin 16 a predetermined number of times as shown in FIG. The above-mentioned operation is repeated in order to pull up. Needless to say, the wire rod 45 is unwound from the original wire spool during the pulling operation. After pulling for a predetermined number of times, the pulling member 25 is stopped at the position (a). Next, the air cylinder 38 is operated to move the rack 37. The rack 37
Since the pinion 36 is engaged with each other, each of the dragging members 25 is inverted by 180 degrees as shown in FIGS. 11 (a) to (c), and the wire 45 engaged with the dragging member 25 is released. Then, as shown in FIG. 11 (f), the original state is restored. Next, mount the air cylinders 46 and 47 to the mounting base 4 until the state shown in FIG.
After lowering 1,42, the air cylinders 43,44 are operated to move the drawn wire 45 to a position separated from the first hooking pin 2 and the second hooking pin 16 by a predetermined distance. Hold it. After that, drive the motors 6 and 21 to each nozzle.
By rotating 3,17, the first hooking pin 2 and chuck 39
And the second hooking pin drawn between
The drawn wire between the chuck 16 and the chuck 40 is twisted and twisted. The twisted portion between the first hooking pin 2 and the chuck 39 becomes the lead-out portion of the end of the coil currently wound by the automatic winding machine, and the twisting portion between the second hooking pin 16 and the chuck 40 is formed. The twisted portion between them serves as a lead-out portion of the starting end of the coil to be wound next time, and the middle portion, which is not twisted, is cut by a cutter. The length of the twisted portion is changed by adjusting the distance between the mounting bases 41 and 42 with respect to the first hooking pin 2 or the second hooking pin 16. The distance between the first hooking pin 2 and the second hooking pin 16 can be changed by turning the handle 14.

After the first hooking pin 2 and the second hooking pin 16 are rotated and twisted, the air cylinder 24 is actuated to move the release plate 23 to make the second hooking by the holding cylinder 17a. If the wire rod 45 is pulled on the automatic winding machine side after releasing the pressing force on the pin 16, the pulling causes the second hooking pin 16 to rotate and the wire rod 45 to be disengaged. By bending due to its own weight, the engagement with the first hooking pin 2 is also released, and the twisted portion is fed from the nozzle 3 to the automatic winding machine.

[Advantage of Invention] As described above, according to the twisting device of the winding terminal according to the present invention, the twisting is applied only to the necessary end of the winding and the starting end of the next winding. It is possible to shorten the time and obtain the end of the winding that is not subjected to extra mechanical stress.

[Brief description of drawings]

FIG. 1 is a plan view showing the overall structure of a twisting device according to the present invention, FIG. 2 is a left side view of FIG. 1, and FIG. 3 is a main part of a first hooking pin and a second hooking pin. Fig. 4 is a structural view showing the structure of Fig. 4, Fig. 4 is a structural view of the essential parts showing the reciprocating table and the retreat member, Fig. 5 is a plan view of the reciprocating table, Fig. 6 is a side view of the reciprocating table, and Fig. 7 FIG. 8 is a configuration diagram of a chuck, FIGS. 8 to 10 are explanatory views showing a pulling operation of a pulling member, and FIG.
(A) to (f) are explanatory views showing an operation when the wire rod is disengaged from the dragging member, and FIG. 12 is a perspective view showing a state in which a conventional coil end is twisted. 2 ... 1st hooking pin, 3,17 ... Nozzle 15 ... Movable base 16 ... 2nd hooking pin 25 ... Retracting member, 26 ... Reciprocating table 34 ... Retracting table, 39, 40 ... Chuck 41, 42 ... Mount, 45 ... Wire

Claims (1)

(57) [Scope of utility model registration request] 1. A hooking pin, which is disposed at an appropriate interval in the vicinity of a wire rod fed toward an automatic winding machine and is driven to rotate by a predetermined number of revolutions, and a hooking pin engaged with the wire rod. In a twisting device of a winding terminal, which comprises a pulling member that circulates between the hooking pins and drags the wire rod between the hooking pins a suitable number of times, and is arranged at appropriate intervals from the respective hooking pins. A twist device for a winding end, comprising a twist length regulation member for regulating a twist length by sandwiching a wire rod that has been stretched a suitable number of times.