JP2909376B2 - Method of manufacturing multi-needle recording head - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a multi-needle recording head suitable as an electrostatic recording type recording head.
More specifically, according to the present invention, the wires constituting the recording electrodes of the multi-needle recording head (hereinafter referred to as recording electrode wires or simply wires) are grouped for simplification of the drive circuit and connected to the wiring board. The present invention relates to a method for manufacturing a multi-needle recording head that can be obtained in a suitable state.

[0002]

2. Description of the Related Art As shown in FIG. 6, for example, as shown in FIG. 6, a multi-needle recording head has recording electrodes 101, 101 arranged at high pitch and high density in two rows, and two rows arranged outside the rows. The electrodes 102, 102 and the recording electrodes 101, 101
And an electrode support block 103 made of resin or the like that supports the control electrodes 102 and 102.
And a wiring board 105 for connecting and connecting the recording electrode wires 104 drawn out from the group 03 to each other. Here, each of the recording electrodes 101, 101 is provided so as to be collectively connected to a driving circuit for each recording electrode that can be grouped in order to simplify the driving circuit (not shown). In view of this, the wires 104 constituting the recording electrodes 101 and 101 are bundled for each group, the binding portion 117 is once connected to the wiring board 105, and then connected to the drive circuit for each group.

Such a multi-needle recording head is, for example, shown in FIG.
5 and a winding jig as shown in FIG. First, the block of the control electrode 102 is arranged in the cavity groove 107 of the winding jig 106, and then the wire 104 is wound around the cavity groove 107 at a constant pitch. At this time, the wires 104 are pins 108, 118, and 11 protruding around the winding jig 106.
9 and the pins 108,
108 are bundled. Next, two winding jigs 106 each having the wire 104 wound thereon are abutted against each other to form the cavity groove 1.
07, an electrically insulating resin is injected into the electrode support block 10.
3 is formed and the wire 104 is hardened. Further, a portion (bundling portion) 117 bundled for each group of the wire rods 104 is soldered (not shown) and then cut at a cutting portion denoted by reference numeral 109. Then, the electrode support block 103 and the wire 10
4 is removed from the winding jig 106, and the binding portion 117 is soldered to the contact terminals 110 of the printed circuit board 105.

The winding machine shown in FIG. 4 uses a wire guide 111 for guiding the supply of the wire 104 to the winding jig 106.
A first motor 113 for reciprocating the wire guide 111 along the guide shaft 112, a second motor 114 for rocking and rotating the winding jig 106 when the wire 104 is wound, and a first motor 113. The control unit 115 includes a control device 115 for controlling the second motors 113 and 114.

[0005]

According to this manufacturing method, however, the binding portions 117 of the wires 104 bundled for each group are hardened by solder so as not to be separated, but the bundles of the wires 104 are hardened. Since the positional relationship with the bundle is not fixed to each other, when the electrode support block 103 and the wire 104 are removed from the winding jig 106, the binding portion 117 and the binding portion 117 of the wire 104 due to the tension applied to the wire 104 and the like. And the positional relationship between them will be different. For this reason, as shown in FIG. 6, there is a possibility that the work of accurately soldering all the binding portions 117 to the corresponding contact terminals 110 of the wiring board 105 may be difficult.

According to the present invention, the positional relationship between the binding portions of the wire drawn from the electrode support block does not vary,
It is an object of the present invention to provide a method for manufacturing a multi-needle recording head that can be accurately and easily connected to a corresponding position on a wiring board.

[0007]

In order to achieve the above object, the present invention provides a winding jig having a cavity groove into which an electrically insulating resin is injected, and a recording jig for recording electrodes which can group recording electrode wires. The first and second recording electrode wires that are wound at a constant pitch so as to cross the cavity groove while being bundled are solidified by an electrode support block of an electrically insulating resin injected into the cavity groove in a state of being arranged in a staggered manner. the method of manufacturing a multi-needle printing head, before removing the electrode support block and the recording electrode wires from the winding jig and fixing the tie portion of each bundle of recording electrode wires to wire fixing member DOO
In addition, the recording electrode wire fixed to this wire fixing member
Cut the end of the binding part of each bundle, and wire-wrap the recording electrode wire.
After removing from the fixture, cut off each bundle of recording electrode wires.
Is fixed to each terminal of the wiring board .

[0008]

The positional relationship between the bundles of wires bundled in groups on the winding jig is fixed to the wire fixing member on the winding jig. Therefore, even if the electrode support block and the wire are taken out of the winding jig, the positional relationship between the wire bundles does not vary.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The construction of the present invention will be described below in detail with reference to the embodiments shown in the drawings.

First, FIGS. 1 and 2 show an example of a winding jig and a wire fixing member for implementing the manufacturing method of this embodiment. The winding jig 1 has a cavity groove 2 for forming an electrode support block 11. In the case of the present embodiment, two winding jigs 1 having the same structure as those shown in FIGS. 1 and 2 are opposed to the cavity grooves 2 so as to form an electrode support block therebetween. Used for

In the winding jig 1, wire holding grooves 5 are formed at a constant pitch in the ridges 4, 4 at the edge of the cavity groove 2 in a direction orthogonal to the length direction of the winding jig 1. ing. This wire rod holding groove 5 is, for example, 1 that can group M pieces.
When one group of recording electrodes is constituted by N sets of recording electrodes, M × N recording electrodes are formed. Specifically, the wire rod holding groove 5 of the present embodiment has 55 sets of 128
Zero lines are formed. The winding jig 1 has a cavity groove 2
Orienting pins 6 _L , 6 for orienting wire 10 outside
Guide pins 8 for guiding the bundle pin 7 _L, 7 _R and the wire bundle bundling group the _R and wire on the opposite side to the pin group _L, 8 _R is provided. Orientation pins 6 _L , 6 _R
, The number of grooves between the pins is, for example, 2M (256). Wire bundle pin 7
_L and 7 _R are each provided with M (128), and 55
The wires 10 are provided so as to be bundled into one group and distributed into 128 groups. Guide pin 8 _L ,
8 _R are also provided in each of M (128). The wire 10 is connected to the pins 6 _L , 6 _R , 7 _L , 7 _R , 8 _L ,
It is wound around the 8 _R, bundled pins 7 _L, 7 N present in _R (55
Orientation pins 6 _L , 6 _R
Are arranged at a constant pitch so as to cross the cavity grooves 2 in a predetermined order. In FIG. 1, pins 6 _L ,
_{6 R, 7 L, 7 R} , 8 L, 8 R is shown only a few present respectively, shown in other pins are omitted. Further, in this embodiment, the pin 6 _L, 6 and _R is formed in the pin plate 6,6, pin 7 _L, 7 to _R formed in the pin plate 7,7, pin 8 _L, 8 _R a pin plate 8, However, the present invention is not limited to this, and one pin may be provided.

Further, the wire fixing member 3, made from a single plate extending in the length direction of the wiring jig 1, between the one side of the bundled pin 7 _L and the guide pins 8 _L of the winding jig 1 And 8 _R and 8 _L
Is installed between The wire fixing member 3 is provided to fix by bonding a wire bundle that are grouped in bundles pin 7 _L.

Using this winding jig 1 and the wire fixing member 3, a multi-needle recording head is manufactured as follows.

First, the control electrode 9 and the like are arranged at predetermined positions of the cavity groove 2 of the winding jig 1. Next, the wire 10 is selectively wound around the pins 6 _L , 7 _L , 8 _L , 6 _R , 7 _R , and 8 _R of the winding jig 1 using, for example, a winding machine as shown in FIG. The wires are aligned at a constant pitch using the wire holding grooves 5, and are laid across the cavity grooves 2. At this time, N wires (55) are bundled with the bundle pins 7 _L and 7 _R.
Book) After being grouped into a bundle, the guide pins 8 _L ,
It is hung during 8 _R. In this embodiment, the wire 10 is wound around the winding jig 1 while rotating the winding jig 1 in one direction, but the winding jig 1 is not particularly limited thereto. The wire 10 may be wound in a semicircle around a predetermined pin while swinging. M × N (704
After the alignment of the wires 10 is completed in all of the (0) wire holding grooves 5, two winding jigs 1 are opposed to each other with the cavity grooves 2 facing each other, and an insulating resin is injected into the cavity grooves 2. Then, the electrode support block 11 is formed. Then, the guide pins 8 _L, solidified with solder for each bundle of wire 10 between 8 _R.
Reference numeral 17 denotes a binding portion (binding portion) which is fixed by solder.

Next, the pin 7 between the _L and the pin 8 _L, on a piece of wire fixing member 3 that unity portion of each bundle are arranged in the longitudinal side direction of the wiring jig 1 of the wire 10 Is fixed by bonding with an adhesive 18 or solder or the like, and the positional relationship between the bundles of the wire rods 10 is fixed.

Next, the binding portion 17 of each bundle of the wire 10 is cut at the cutting portion 12 between the turn pins 8 _L and 8 _R. Immediately
That is, binding of each bundle of the wire rod 10 fixed to the wire rod fixing member 3
Cut off the end of the part. Then, the electrode support block 11 and the wire 10 are taken out from the winding jig 1.

Next, as shown in FIG. 3, the binding portions 17 of the respective wires 10 are connected to the contact terminals 14 of the wiring board 13.
Is fixed with solder or the like. Reference numeral 15 is a wiring pattern, 16
Indicates a connector connected to the wiring patterns 15 of the same group and to a drive circuit (not shown). Reference numerals 19 and 19 indicate recording electrodes made of the wire 10, and reference numeral 20 indicates an intersection of the wire 10.

The binding portions 17 are fixed to a single wire fixing member 3 and are aligned without being separated from each other, so that the corresponding contact terminals 14 of the wiring board 13 are arranged.
And can be easily soldered. In addition, since the mutual positional relationship between the bundles of the wire rods 10 is fixed, solder for soldering to the wiring board 13 is attached to each of the binding portions 17, so that it is easy to put the bundle into a solder bath (not shown). . Further, a sheet (not shown) for protecting the wire 10
In such a case, one end of the sheet is attached to the wire fixing member 3 so that the wire fixing member 3 can also be used as the fixing member of the protection sheet.

The above embodiment is a preferred embodiment of the present invention, but is not limited thereto, and various modifications can be made without departing from the spirit of the present invention. For example, in the above embodiment, the wire fixing member 3 is the wire 1
The wire fixing member 3 may be separated from the bundle of the wires 10 after the bundle of the wires 10 is connected to the wiring board 13 in some cases. In this embodiment, all the binding portions 17 are fixed to the single wire fixing member 3. However, the wires 10 belonging to the group connectable to the same control circuit are connected to a plurality of bundles, for example, the right half of the head. In the case where the left half is bundled into two parts, a plurality of members, for example, a member for fixing the binding portion 17 of the right half wire 10 and a member for fixing the binding portion 17 of the left half wire 10 are used as two members. Is also good.

[0020]

As is apparent from the above description, according to the present invention, before removing the electrode support block and the wire from the winding jig, the binding portion of each bundle of the wire is fixed to the wire fixing member .
For the recording electrode fixed to this wire fixing member.
Cut the end of the binding part of each bundle of wire, and wire the recording electrode wire.
After removing from the winding jig, each bundle of recording electrode wires
The cut portion is fixed to each terminal of the wiring board, and the positional relationship of the binding portions of the bundles of the wire drawn out from the electrode support block is prevented from being varied, so that the binding of the bundles of the wire is performed.
The part can be accurately and easily connected to the corresponding position on the wiring board.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an example of a winding jig upside down for carrying out a method of manufacturing a multi-needle recording head according to the present invention.

FIG. 2 is a cross-sectional view of the winding jig of FIG.

FIG. 3 is a perspective view of a multi-needle recording head obtained by the winding jig of FIG.

FIG. 4 is a perspective view showing an example of a winding machine and a winding jig for manufacturing a multi-needle recording head.

FIG. 5 is a cross-sectional view of a winding jig explaining a method for manufacturing a conventional multi-needle recording head.

FIG. 6 is a perspective view of a multi-needle recording head obtained by the manufacturing method of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Winding jig 3 Wire fixing member 10 Wire 11 Electrode support block

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-57-191067 (JP, A) JP-A-59-26276 (JP, A) JP-A-58-20460 (JP, A) JP-A-62 299346 (JP, A) Japanese Utility Model 58-125033 (JP, U) (58) Field surveyed (Int. Cl. ⁶ , DB name) B41J 2/395

Claims (1)

(57) [Claims] 1. A recording jig is wound around a winding jig having a cavity groove into which an electrically insulating resin is injected at a constant pitch so as to cross the cavity groove while bundling recording electrode wires into grouping recording electrodes. In the method for manufacturing a multi-needle recording head, the first and second recording electrode wires are fixed in an electrode supporting block of an electrically insulating resin injected into the cavity groove in a state of being arranged in a staggered manner. Before removing the recording electrode wire from the winding jig, the binding portion of each bundle of the recording electrode wire was fixed to the wire fixing member, and fixed to the wire fixing member.
Cut the end of the binding part of each bundle of recording electrode wires, and
After removing the recording electrode wire from the winding jig,
Fix the cut part of each bundle of electrode wires to each terminal of the wiring board.
Multi-needle method of manufacturing a recording head, characterized in that that.