JPH0431270Y2 - - Google Patents

Description

[Detailed description of the invention] <Industrial application field> The present invention is an air injection loom that performs weft insertion using an auxiliary nozzle. This invention relates to a connection structure for a control line for a solenoid valve when a solenoid valve for controlling feeding is incorporated.

<Prior art> Conventionally, in air injection looms that perform weft insertion using an auxiliary nozzle, the supply of pressurized air to the auxiliary nozzle is controlled by a control valve.
As shown in Japanese Patent No. 55661, there is one in which a control valve is attached to an auxiliary nozzle holder.

When using a solenoid valve as a control valve, route the control wire (lead wire) from the power supply and switching circuit of the stationary part from the swinging center side of the reed holder to the reed holder, and then connect the reed holder to the reed holder. Generally, it is connected to a solenoid valve of an auxiliary nozzle holder attached to the body.

<Problems to be solved by the invention> However, with the above control line connection structure, when the auxiliary nozzle holder is attached to the reed holder, the lead wire of the solenoid valve on the auxiliary nozzle holder side and the reed holder side must be connected to the lead wire of
For this connection, the length of the lead wire at the connection part must have some allowance, so that part can move with impact as the reed holder swings, which can cause the lead wire to break. There was a problem. Further, it is necessary to connect the lead wires after attaching the auxiliary nozzle holder to the reed holder, and the connection operation is separate from the attachment operation and becomes complicated.

The present invention has been made in consideration of the above-mentioned problems in the conventional art, and aims to provide a control line connection structure which eliminates the need for excess lead wires in the control line connection section between the auxiliary nozzle holder side and the reed holder side, thereby eliminating the risk of wire breakage, and which enables the connection work to be easily performed at the same time as the installation work.

<Means for Solving the Problems> Therefore, the present invention connects one terminal of the one-touch connection terminal of the control line to the solenoid valve to the auxiliary nozzle holder joint surface of the reed holder, and also connects one terminal of the one-touch connection terminal of the control line to the solenoid valve to the auxiliary nozzle holder joint surface of the reed holder. The other terminal connected to the solenoid valve is arranged on each side.

<Function> Therefore, by simply attaching the terminal on the auxiliary nozzle holder side to the terminal on the reed holder side and attaching the auxiliary nozzle holder to the reed holder, the control line can be connected, making the connection work easier and , no excess lead wire remains at the connection part.

<Example> An example of the present invention will be described below based on the drawings.

Referring to Figures 1, 4, and 5, 1 is a threaded sword shaft, 2 is a threaded sword, 3 is a reed holder, 4 is a reed, 5 is a guide groove on the front of the reed 4, and 6 is for fixing the reed 4. The wedge 7 is a bolt for pressing the wedge 6.

Air distribution holes 8 are formed in the reed holder 3 over its entire length in the longitudinal direction. One ends of flexible pipes 9A, 9B are connected to both ends of the air distribution hole 8, and the other ends of these pipes 9A, 9B are connected to an air tank 10 as a pressure air supply source.
A plurality of air guide holes 11 are provided on the front surface of the reed holder 3 and are connected to the air distribution holes 8.

A power distribution groove 12 is also formed on the front surface of the reed holder 3 over its entire length in the longitudinal direction. This power distribution groove 1
2 is inserted with a control band 14 formed by fixing power lines 13A, 13B and a signal line 13C with epoxy resin. The end of the control band 14 is led out from the distribution groove 12 and connected to a power source and a control box (not shown). A switching circuit 15 is fixed to a predetermined position of the control band 14 (a position corresponding to the air guide hole 11 in the longitudinal direction). Female terminals 17A and 17B constituting one of the one-touch connection terminals 16 are fixed to the outer shell of the switching circuit 15, as shown in FIGS. 2 and 3. Each of the female terminals 17A, 17B is composed of a pair of clamping bodies made by bending a conductive leaf spring into a hook shape, and the opening between the pair of clamping bodies is oriented in the longitudinal direction of the reed holder 3. Here, the switching circuit 15 switches the power lines 13A and 1 according to the signal from the signal line 13C.
Turn on the connection between 3B and female terminals 17A and 17B.
It's starting to turn off.

The control band 14 and the switching circuit 15 are fixed by a non-conductive resin 18 injected into the power distribution groove 12, and this resin 18 is flush with the front surface of the reed holder 3 except for the part where the one-touch connection terminal 16 is located. The terminal holes 19 surrounding the one-touch connection terminals 16 are formed by filling only the bottom of the distribution groove 12 where the one-touch connection terminals 16 are located.

Reference numeral 20 denotes an auxiliary nozzle holder, which is formed with an air guide hole 21 that opens on the joint surface to the reed holder 3 and a connection hole 22 that opens on the top surface. An O-ring groove 23 is formed around the opening of the air guide hole 21, into which an O-ring 24 is inserted. A base 26 to which an auxiliary nozzle 25 is fixed is screwed into the connection hole 22.

The auxiliary nozzle holder 20 also has a valve chamber 27 formed between the air guide hole 21 and the connection hole 22. A valve seat 29 having a through hole 28 is fixed to the valve chamber 27, and a solenoid valve 30 is also provided. Solenoid valve 3
0 is equipped with an electromagnetic coil 31, an armature 32, a spring 33, etc., and a valve body 34 facing the valve seat 29 is embedded in the tip of the armature 32.

A mounting hole 35 is also formed in the joint surface of the auxiliary nozzle holder 20 to the reed holder 3. Platy male terminals 36A and 36B (see FIGS. 2 and 3) constituting the other side of the one-touch connection terminal 16 are arranged in this mounting hole 35, and in a state connected to the electromagnetic coil 31, a non-conductive resin It is fixed by 37.
An O-ring groove 38 is formed around the mounting hole 35,
An O-ring 39 has been inserted. This O-ring 39
is provided as a means to prevent dust from entering.

40 is a bolt for fixing the auxiliary nozzle holder 20.

Next, the action will be explained.

When attaching the auxiliary nozzle holder 20 to the reed holder 3, attach the auxiliary nozzle holder 20 to the female terminals 17A and 17B of the one-touch connection terminal 16 on the reed holder 3 side.
The side male terminals 36A, 36B are applied and pressed against the reed holder 3 with the bolt 40. As a result, an electrical connection is established and the O-ring 2
4 and 39 are crushed, and the air guide hole 11 and the air guide hole 21
The surroundings of the connecting portion with the one-touch connection terminal 16 and the connecting portion of the one-touch connection terminal 16 are sealed to prevent dust from entering.

In this way, the control wire can be connected simply by applying one terminal to the other terminal and pressing it, making the connection work easy, and since the lead wire does not swing by itself. , wire breakage can also be prevented. Furthermore, poor contact due to fluff, etc. can be prevented.

When the switching circuit 15 is turned on by the signal from the signal line 13C, the power lines 13A, 1
3B and the electromagnetic coil 31 are connected, and the electromagnetic coil 31 resists the spring 33 to move the armature 3.
As a result of lowering 2, the air distribution hole 8, the air guide hole 11,
21, the auxiliary nozzle 2 through the through hole 28, and the connection hole 22.
Pressure air is supplied to 5 and is ejected from the auxiliary nozzle 25. The opening/closing timing of the solenoid valve 30 of each auxiliary nozzle holder 20 is adjusted for each auxiliary nozzle holder 20.

Further, in this embodiment, since the opening between the pair of clamping bodies constituting the female terminals 17A and 17B of the one-touch connection terminal 16 is oriented in the longitudinal direction of the reed holder 3, the mounting position of the auxiliary nozzle holder 20 can be adjusted. It can be finely adjusted in the longitudinal direction. In this case, the air guide hole 11 and the air guide hole 21 are misaligned, but the cross-sectional area is set such that the air flow rate from the auxiliary nozzle 23 does not change due to this misalignment. By finely adjusting the auxiliary nozzle holder 20, the auxiliary nozzle 2
Problems caused by pushing up the warp yarns at the tips of 5 can be prevented.

In this example, one auxiliary nozzle is attached to one auxiliary nozzle holder, but multiple auxiliary nozzles are attached to one auxiliary nozzle holder, and air is supplied to these multiple auxiliary nozzles using one solenoid valve. It may be controlled by.

<Effects of the invention> As explained above, according to the invention, the control line can be connected simply by placing and fixing the auxiliary nozzle holder at a predetermined position on the reed holder, making the connection work easier. Furthermore, since there is no extra lead wire at the connection part, there is no risk of wire breakage due to shocking movement.

[Brief explanation of the drawing]

Fig. 1 is a side sectional view of the auxiliary nozzle holder attachment part showing one embodiment of the present invention, Fig. 2 is an enlarged view of the main part of Fig. 1, Fig. 3 is a plan view of Fig. 2, and Fig. 4 is FIG. 5 is a front view of the entire loom, and FIG. 5 is a side view thereof. 3... Reed holder, 8... Air distribution hole, 12...
Power distribution groove, 13A, 13B...power line, 13C...
Signal line, 15...Switching circuit, 16...One-touch connection terminal, 17A, 17B...Female terminal, 20...Auxiliary nozzle holder, 25...Auxiliary nozzle, 30...Solenoid valve, 31...Solenoid coil, 3
6A, 36B...Male terminal, 39...O ring.

Claims (1)

[Scope of utility model registration request] The auxiliary nozzle 25 and the solenoid valve 30 that controls the supply of pressurized air to the auxiliary nozzle 25 are attached to the auxiliary nozzle holder 20, and a plurality of auxiliary nozzle holders 20 are attached to the reed holder 3, and the auxiliary nozzles 25 are attached to the auxiliary nozzle holder 20. In an air injection loom that performs weft insertion by ejecting air from the reed holder 3, one terminal 17A, 1 of the one-touch connection terminal 16 of the control line for the solenoid valve 30 is attached to the auxiliary nozzle holder joint surface of the reed holder 3.
7B, and the other terminal 36A connected to the solenoid valve 30 on the corresponding joint surface of the auxiliary nozzle holder 20,
A control line connection structure of a solenoid valve for an auxiliary nozzle of an air-injection type loom, in which 36B are respectively arranged.