JPH0234818Y2 - - Google Patents

Description

[Detailed description of the invention] "Industrial field of application" This invention is applicable to approximately ring-shaped or E-shaped cores that cannot be wrapped around a wire by the rotation of a commonly used flyer, especially for audio equipment. The present invention relates to a winding device suitable for winding a core for an erase head.

``Prior Art'' As shown in FIG. 11, an erasing head 1 used for audio and the like has coil wires 3 and 4 wound around a core 2 made of a substantially E-shaped laminated iron core. The gap δ is preferably 0.07 mm or less, which is as narrow as possible. For this reason, it is impossible to wind the coil wires 3 and 4 having a diameter of 0.2 mm or less around the core 2 through the gap δ, and therefore it is not possible to perform the winding using a well-known flyer. As a result, it is not easy to wind the core 2, and conventionally the ends of the wire are passed through the through holes 5 and 6 of the core 2 and wound. The winding operation is complicated, such as having to pass the wire by sandwiching the wire, and as a result, the structure is extremely complicated, leading to an increase in the size of the device. Moreover, as shown in FIG. 11, the conventional erasing head 1 has two windings on the core outer circumferential parts 2b and 2c facing the core central part 2a from the viewpoint of electrical characteristics. Coupled with the fact that 2 is made of a laminated iron core, the external dimensions are large and there are problems in that it is difficult to make it more compact.

``Problems to be Solved by the Invention'' Therefore, in view of the above circumstances, the present invention has been developed to provide an eraser having a substantially ring-shaped gap for winding the coil wire, for example, a gap through which the coil wire cannot be inserted. It is an object of the present invention to provide a winding device that can easily wind a head core using simple means.

``Means to be Solved by the Invention'' In order to achieve the above object, the present invention provides a catch hook for hooking and pulling out the wire to be wound from one side of the core to the other side, and A storage pipe that stores both sides of the wire to be wound on the core and that is turned over in this stored state, and the rotation of the storage pipe expands the wire so that the wire crossed on one side of the core can be caught with a catch hook. The present invention is characterized by a winding device including a bar that causes the winding to occur.

"Embodiment" Hereinafter, one embodiment of the winding device according to the present invention will be described based on the drawings. In FIG. 1, 11 is a work holder provided on a base 12. As shown in FIG. An erase head core 13 is attached to the work holder 11. Core 13 is the 11th
Like the one in the figure, it is E-shaped, compactly formed from ferrite, and has a gap of δ.
Also, the diameter of the wire material A is 0.07 mm or less, which is much narrower than the diameter of wire A, which is 0.2 mm or less, and the center part of the core 1
The wire A is applied only to 3a in order to reduce the size of the erasing head. Storage pipes 14 and 15 are opposed to each other on both sides of the core 13, and one end of each of the storage pipes 14 and 15 is connected to support plates 16 and 1.
The power transmission mechanism 1 is rotatably supported by the power transmission mechanism 7 and is comprised of a gear group and a timing belt, respectively.
It is connected to pulse motors 20 and 21 via 8 and 19. As shown in FIGS. 3 and 5, the storage pipes 14 and 15 are internally divided into two chambers 23 and 24 by a partition wall 22.
The slots 25 and 26 that communicate with the storage pipes 14 and 15
formed longitudinally on the outer wall of the At the tip of each storage pipe 14, 15, line pressing devices 27, 28 are provided.
As shown in FIG. 3 to FIG. 5 and FIG.
The rods 32 and 33 of each holding plate 30 and 31 are provided with springs 34 for elastically biasing the holding plates 30 and 31 in the direction of pressure contact with the inner wall surface of the casing 29. , 35 are interposed. The rods 32, 33 have receiving plates 36, 37 at the other ends, and piston rods 40, 41 of the air cylinders 38, 39 are attached to each receiving plate 36, 37.
are pressed against each other. A guide rod 42 is installed between the support plates 16 and 17, and a slider 4 is attached to the guide rod 42.
3 and 44 are slidably mounted. Each slider 43, 44 is connected to a chain 45. The chain 45 is wound between sprockets 46 and 47 which are pivotally supported by support plates 16 and 17, respectively. One sprocket 46 is a power transmission mechanism 48
It is connected to a pulse motor 49 via. Each slider 43, 44 has an air cylinder 5.
Attachment members 54, 55 are mounted which move up and down along guide rods 52, 53 by 0, 51. As shown in FIG. 4, the mounting members 54 and 55 are provided with a pair of left and right catch hooks 56 and 5 with a distance corresponding to the distance between the slots 25 and 26.
7 is fixed. An expansion bar unit 58 is disposed above the work holder 11.
The expansion bar unit 58 is mounted on a guide rod 60 on a support 59 provided on the base 12 so as to be movable up and down by an air cylinder 61. and,
The expansion bar unit 58 has a pulse motor 62 and is connected to coaxial shafts 64 and 65 via a power transmission mechanism 63 consisting of gears, timing belts, etc.
are designed to be rotated approximately 180 degrees in opposite directions. An arm 6 is attached to the lower end of the shafts 64 and 65.
Expansion bars 68 and 69 are attached via 6 and 67. The expansion bars 68 and 69 have small-diameter engaging portions 70 and 71 formed at their lower portions so that the wire rod A can be hooked thereon. Further, as shown in FIG. 2, the wire rod A wound around the bobbin 72 is passed through a tension device 73 that applies a predetermined tension to the storage pipes 14, 15.
A wire carrier 74 drawn out between the wire carriers 74 and a clip 75 holding the wire A drawn out to the wire carrier 74.
and a cutter 7 that cuts the wire material A into predetermined lengths.
6. Furthermore, when winding the core central portion 13a for the first time, the wire A is placed around the core central portion 13a so that the wire A does not deviate from the central portion when it is hooked by the catch hook 56 and inserted into the core hole. It has a presser foot 77 that presses and holds the wire. The wire presser foot 77 is used only for the first time, but it is not necessarily necessary as long as the wire A does not shift.

"Function" In the above-mentioned wire winding device, first, as shown in FIG. After moving towards the core 13 and moving beyond the core 13 to a predetermined distance, that is, a length corresponding to the desired number of turns,
The end of the wire A is held between the clips 75, and then the wire carrier 74 returns to the original position shown by the broken line in FIG. It is moved upward by a certain distance and cut into a predetermined length using a cutter 76.
At this time, the catch hook 56 has already been inserted into the hole of the core 13, and the downward hook at the tip is protruding outside, so the catch hook 56 is moved in the pulling direction as shown in FIGS. 3 and 7 by the drive of the pulse motor 49. By simply moving the wire rod A, the central part of the wire rod A is hooked, and the catch hook 56 moves within the chambers 23 and 24 of the storage pipe 14, thereby separating both portions of the wire rod A into the chambers 23 and 24, respectively. Store it. After this storage, the catch hook 56 is moved upward by the air cylinder 50 to open the slot 25 of the storage pipe 14,
26 to the outside in preparation for the next operation.
Next, as shown in FIG. 8, the air cylinders 38, 39
When the piston rods 40 and 41 release the pressure on the receiving plates 36 and 37, the springs 34 and 35 elastically bias the wire A between the inner wall of the casing 29 and the holding plates 30 and 31. suppress. With this presser, the wire rod A hooked to the center portion 13a of the core 13 is spread out without loosening between the core center portion 13a and the presser plates 30, 31. In this state, as shown in FIGS. 5 and 9, the storage pipe 14 is driven by the pulse motor 20.
If it is reversed 180 degrees, the wire A will cross on one side of the core 13. The wire A is wound once around the center portion 13a of the core 13 using this cross. and,
The catch hook 57 is inserted through the hole in the core 13 so that the downward hook is exposed to the outside. Next, expansion bar 6
8 and 69 are moved downward by the air cylinder 60,
As shown in FIG. 9, the wires A are inserted between the crossed wires A, and the wires A are inserted into the hooking portions 70, 71 by the pulse motor 62 as shown in FIGS. 5, 9, and 10.
It expands approximately 180 degrees when hooked to. With this expansion operation, the wire rod A is positioned below the catch hook 57, and the expansion bar 6 is moved by the air cylinder 61.
8 and 69 by a predetermined distance l as shown in FIGS. 6 and 10, the wire A can be hooked onto the catch hook 57, and the pulse motor 4
By moving the wire rod A from the hole in the core 13 in the pulling direction by the wire rod 9, the wire rod A is hooked on the catch hook 57 and passed through the hole in the core 13, and the wire rod A is
7 moves in each chamber 23, 24 of the storage pipe 15, the wire A moves in each chamber 13, 24 of the storage pipe 15.
It is stored in 24. During this storage, the other catch hook 56 moves the core 1 above the storage pipe 14.
It goes without saying that the wire rod A is moved in the direction 3, moved downward by the air cylinder 50 at a predetermined position, and inserted into the hole of the core 13 to prepare for the next hooking operation of the wire rod A. Then, while holding the wire A with the receiving plates 36 and 37 of the wire holding device 28 and the inner surface of the case 29 in the same way as above, the storage pipe 15 is reversed and the wire A is crossed on the other side of the core 13. Further, after expanding the crossed wire rod A with the expansion bars 68 and 69, the expansion bars 68 and 69 are moved upward by a predetermined distance l to engage the wire rod A with the catch hook 56, and the pulse motor 49 is driven. Remove the catch hook 56 from the hole in the core 13 and insert it into the slot 2.
If the wire A is moved inside the storage pipe 14, which has been inverted so that the wires 5 and 26 face upward, the wire A will be stored in the storage pipe 14 again, and if the above operation is repeated, the wire material A will be cut to a predetermined length. The wire A is wound from the center of the wire A to the center 13a of the core 13 a predetermined number of times.

By the way, when one of the catch hooks 56 and 57 is hooking the wire A and moving it from the wire holding device 27 through the storage pipe 14, the other one is hooking the wire A into the storage pipe 1.
4 in the direction of the core 13, and when it reaches a predetermined position where it does not come into contact with the storage pipe 14 or the line presser 27, move it down and then move it further to insert it into the hole of the core 13, or move the storage pipe 14 slots 2
Storage pipe 1 until 5 and 26 are flipped upwards.
After being located above the core 13 and inverted, it is moved downward and inserted into the hole of the core 13. The same holds true for the other catch hooks 57. Each storage pipe 14, 15 has a slot 25,
26 is facing downward, then turn the other
The internal wire A is pulled out by the wire rods 6 and 57, and after being stored in the other storage pipes 14 and 15, it is turned over so that the slots 25 and 26 face upward so that the catch hook can be inserted therein. Furthermore, each storage pipe 14,
15, the expansion bars 68 and 69 are moved upward so as not to interfere with the crossing of the wire rod A, and are moved downward only when the wire rod A is expanded after crossing. A moves up by a distance l so that it can be hooked. Furthermore, the air cylinders 38 and 39 are fixedly attached to appropriate supporting materials, so that when the storage pipes 14 and 15 are reversed, the receiving plate 36 and
Since the piston rods 40 and 41 are spaced apart from the piston rod 37, they do not get in the way.

Of course, when the wire A is wound around the core 13 a predetermined number of times, the core 13 is automatically removed from the work holder 11, and the next core 13 to be wound is automatically attached to the work holder 11. It is.

"Effects of the invention" As described above, according to the winding device according to the present invention,
Items such as ring-shaped items that do not have a gap for winding the coil wire, or that cannot be inserted even if there is a gap, such as a coil wire in the core for an audio erasing head with a gap narrower than the wire diameter. When winding the wire, whenever the wire is inserted through the hole in the core and wound, it can be done simply by hooking the wire with a hook and pulling it out, or by reversing the storage pipe that stores the wire. In addition, the movement of each member is not very complicated, so it is simple from a mechanical standpoint and can be manufactured at low cost. It is very convenient for coil winding of various electronic parts such as erasing heads.

[Brief explanation of the drawing]

Fig. 1 is a block diagram showing an embodiment of the winding device of the present invention, Fig. 2 is a block diagram showing the state at the beginning of winding, and Fig. 3 shows the arrangement of the storage pipe and core in Figs. 1 and 2. Fig. 4 is a side view of the main parts showing the line presser and the catch hook, Fig. 5 is a perspective view of the main parts showing the line presser and the expansion bar, and Fig. 6 is the expanded view. An explanatory view showing how the wire is hooked onto the catch by the bar, Fig. 7 is a plan sectional view of the main part showing the movement of the catch at the beginning of winding onto the core, and Fig. 8 is a main part showing how the wire is held down by the wire holding device. 9 is a plan sectional view of the main part showing the reversal of the storage pipe and the movement of the expansion bar; FIG. 10 is a partially sectional front view of the main part showing the movement of the expansion bar; FIG. 1 is a plan view of a conventional audio erasing head; FIG. 11... Work holder, 12... Base, 13
... Core, 13a ... Core central part, 14, 15 ...
... Storage pipe, 27, 28 ... Line presser, 3
0, 31... Pressing plate, 56, 57... Catching hook, 58... Expansion bar unit, 68, 69...
...Expansion bar.

Claims (1)

[Scope of utility model registration request] A catch hook that hooks and pulls out the wire to be wound from one side of the core to the other, and a hook that stores both sides of the wire that is to be wound around the core, and inverts the wire in this stored state. A wire winding device comprising: a storage pipe; and an expansion bar that expands the wire crossed on one side of the core by rotation of the storage pipe so that the wire can be caught by a catch.