JP2002266204A - Cooler of heat-generating member in loom - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a heat-generating member such as a motor to be efficiently cooled by air-jet from an air source. SOLUTION: The heat-generating member 5 is cooled by guiding the air discharged from an attached device 3 acting by utilizing an air flow to the heat-generating member 5 of a loom 2, or by branching the air 4 from the air source 9 for feeding the air 4 to the attached device 3 acting by utilizing the air flow, and guiding the branched air to the heat-generating member 5, in the loom 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for cooling a heating member of a loom by air used in the loom.

[0002]

2. Description of the Related Art Japanese Patent Laying-Open No. 7-324247 discloses a technique relating to an electric shedding apparatus for a loom. The electric shedding device drives each heald in the opening direction by a plurality of servomotors via a driving gear and a driving lever. In the electric opening device, the plurality of servo motors are made small in size to save space, and adjacent servo motors are arranged close to each other.

[0003]

In the above-mentioned technology, the problem of heat generation of the servomotor has occurred with the increase in speed of the loom, and the rotation must be reduced to prevent the servomotor from burning. In addition to the servo motor of the electric shedding device, the loom main motor, the electric unwinding motor, the motor such as the electric winding motor, the heavy load driving device such as the dobby shedding device, the cam shedding device, the reed driving device, etc. As a result, heat generation causes problems such as reduction in rotation efficiency of the motor, burnout, and seizure and wear of mechanical elements.

As a countermeasure, the motor cooling fan may be enlarged or a new blower may be provided for cooling. However, this countermeasure requires space and increases the cost. Not a solution.

Accordingly, it is an object of the present invention to efficiently cool a heating member such as a motor of a loom by air injection from an existing air source.

[0006]

SUMMARY OF THE INVENTION In view of the above-mentioned object, the present invention relates to a loom, wherein air discharged from an accessory operated by utilizing an air flow is used for cooling a heating member of the loom, or The air branches off from the pressure air source of the loom and is taken in, and this air is used for cooling the heating member of the loom.

More specifically, the cooling device for the heat generating member of the loom according to the first aspect of the present invention guides the air discharged from the auxiliary device operating using the air flow to the heat generating member of the loom in the loom. Cool the heating element.

According to a second aspect of the present invention, there is provided a cooling device for a heat generating member of a loom, wherein the air is branched from a pressure air source for supplying air to an auxiliary device operating by utilizing an air flow. , The heat generating member is cooled.

In the first aspect, the air from the pressure air source according to the third aspect flows into the accessory device and is discharged therefrom, and is guided by the guide member to the heat-generating member. The device has an air suction member, and guides the air discharged from the air suction member to the heat generating member.

According to a third aspect of the present invention, in the cooling device for a heat generating member of a loom, the auxiliary device according to the fifth aspect is a weft insertion nozzle of an air jet loom, and the guide member of the discharged air is a counter member of the loom. It is provided on the yarn supply side.

Further, according to a cooling device for a heat generating member of a loom according to a sixth aspect of the present invention, in the loom, air is branched by a guide member from a pressure air source for supplying air to an auxiliary device that operates using an air flow. While guiding to the heat generating member, a valve is interposed in the middle of the guide member, the valve is controlled by a cooling control device, and the supply state of air is changed according to the heat generation of the heat generating member, and the heat generating member is I'm trying to cool.

[0012]

FIG. 1 shows a cooling device 1 for a heat generating member of a loom according to the first, third and fifth aspects of the present invention. The cooling device 1 for the heat generating member of the loom, in the loom 2, guides the air 4 discharged from the auxiliary device 3 that operates using the air flow to the guide member 6.
As a result, the heat generating member 5 is cooled. Here, the loom 2 is an air jet loom,
The attachment device 3 includes a weft insertion nozzle, that is, a main nozzle 30 and a plurality of auxiliary nozzles 31, but may include only one of the main nozzle 30 and the auxiliary nozzle 31. In addition, the guide member 6 is attached to the loom 2
And an air guide 60 and a guide pipe 62 provided on the side opposite to the yarn supply side.

At the time of weft insertion, the main nozzle 30 injects air 4 in order to insert the weft 7 into the warp opening 8, and the auxiliary nozzle 31 injects air 4 in the weft insertion direction. The weft 7 is energized. The air 4 discharged from the main nozzle 30 and the auxiliary nozzle 31 flows into an air intake 61 of an air guide 60 as the guide member 6. The air 4 flowing into the air intake 61 is guided by, for example, two guide pipes 62 and is discharged from the air discharge port 63 toward the plurality of servomotors 51 of the electric opening device as the heat generating member 5 to cool it. .

The heating member 5 includes a plurality of servomotors 51 of the electric shedding device.
Motors such as an electric feeding motor and an electric winding motor, a dobby opening device, a cam opening device, a reed driving device, and the like may be used.

FIG. 2 shows a cooling device 1 for a heat generating member of a loom according to the first and third aspects of the present invention. The loom 2 here is an air jet loom, and the auxiliary device 3 is a stretch nozzle 32
It is. The stretch nozzle 32 is provided on the side opposite to the yarn supply, is connected to the pressure air source 9, and injects the air 4 toward the air intake 64 of the guide pipe 62 as the guide member 6. Thereby, the end of the weft 7 inserted is
The weft 7 inserted into the guide pipe 62 is blown and drawn into the guide pipe 62 and pulled, so that the inserted weft 7 is held in a tension state in the warp opening 8 and beaten. In this way, the slack of the weft 7 during beating is prevented.

The air 4 flowing into the air intake 64
Is passed through the guide pipe 62, branched as necessary, supplied to the plurality of guide pipes 62, and sent from the air discharge ports 63 to the plurality of servomotors 51 of the electric opening device as the heat-generating member 5. To cool.

FIG. 3 shows a cooling device 1 for a heating member of a loom according to the first and fourth aspects of the present invention. The loom 2 here is an air-jet loom, and the auxiliary device 3 is composed of a weft end suction nozzle 33, a weft end collection box 34, a blower 35 as an air suction member, and a pipe 36 communicating these. The weft end suction nozzle 33 is connected to the cutter 10 on the non-feed side.
The suction port is directed to the end of the weft 7 cut by the cutter 10. The air outlet of the blower 35 is connected to a guide pipe 6 serving as a guide member 6.
2 is connected to the air intake port.

The inserted weft yarn 7 is cut by the cutter 10 after beating. The end of the cut weft 7 is
By the suction force of the blower 35 as an air suction member, the air is sucked together with the air 4 from the yarn end suction nozzle 33 and collected inside the weft end collection box 34. Also, blower 35
The air 4 exhaled from the air is supplied to a plurality of servomotors 51 of the electric opening device as heat-generating members 5 by guide pipes 62.
Sent to cool it.

FIG. 4 shows a cooling device 1 for a heat generating member of a loom according to the first and fourth aspects of the present invention. Here, the loom 2 is a water jet loom, and the attachment device 3 is a woven fabric dewatering device 37.
The woven fabric dewatering device 37 is composed of a suction pipe 38, a steam separator 39, a blower 35 as an air suction member, and a pipe 36 communicating with the suction pipe 38. The air 4
The air and water are separated by the steam separator 39 to dehydrate the woven fabric 11. The air outlet of the blower 35 is connected to an air inlet of a guide pipe 62 as the guide member 6.

The air 4 discharged from the blower 35 in the dewatering step of the woven fabric 11 is sent by the guide pipe 62 to the plurality of servomotors 51 of the electric opening device as the heat generating member 5 to cool it. Here, the air 4 is cold air of high humidity, so that the cooling effect is high.

FIG. 5 shows a cooling device 1 for a heat generating member of a loom according to the second and sixth aspects of the present invention. Here, the loom 2 is an air-blast loom, and the auxiliary device 3
Is supplied to the main nozzle 30 as the weft insertion nozzle and the plurality of auxiliary nozzles 31 by the opening and closing operations of the opening and closing valves 12 and 13. The cooling device 1 for the heat generating member of the loom branches the air 4 from the pressure air source 9 by the air pipe 65 and guides the air 4 to the heat generating member 5 via the cooling control device 66 or without the cooling control device 66. Thereby, the heat generating member 5 is cooled.

The cooling control device 66 has a flow control valve 67, an electromagnetic switching valve 68, and a cooling control circuit 69. The cooling control circuit 69 operates the flow control valve 67 in accordance with the operating conditions of the loom 2 to adjust the air supply amount,
By operating the solenoid on-off valve 68, the air 4
Supply. As described above, since the amount of heat generated by the heat generating member 5 changes depending on the operating conditions of the loom 2, the cooling control device 66
Adjusts the cooling capacity so that the heat generating member 5 is not cooled more than necessary, and the consumption amount of the air 4 is reduced. Depending on operating conditions, it may not be supplied.

When the cooling control device 66 is not provided, the operator manually operates an open / close valve (not shown) in the air pipe 65 to adjust the presence / absence of air supply and the amount of air supply at the time of air supply. The intake of the air 4 from the pressurized air source 9 may be performed by branching from the pipeline of the main nozzle 30 or the auxiliary nozzle 31 other than branching directly from the pressurized air source 9.

FIG. 6 shows a cooling device 1 for a heat generating member of a loom according to the second and sixth aspects of the present invention. The cooling device 1 for the heat generating member of the loom includes a cooling control circuit 69 of the cooling control device 66 shown in FIG.
Temperature detector 14 such as a thermocouple as an additional element to
And a temperature setting device 15. Cooling control circuit 69
Compares the measured temperature from the temperature detector 14 with the target temperature set by the temperature setting device 15, and when [measured temperature> target temperature], operates the electromagnetic on-off valve 68 to perform cooling. Supply air 4. Further, the cooling control circuit 69 operates the flow control valve 67 in accordance with the measured temperature or the target temperature to adjust the air supply amount per unit time.

The amount of heat generated by the heat generating member 5 varies depending on the operating conditions of the loom 2. The cooling controller 66 automatically controls the cooling capacity from 0 (no cooling) to a maximum value (cooling limit).
The heat-generating member 5 is cooled while adjusting the temperature within the range described above. According to this control, cooling is not performed more than necessary, the consumption of the air 4 is reduced, and it is possible to reliably prevent the heating member 5 from reaching a dangerously high temperature depending on the operating conditions and the ambient temperature.

The temperature detector 14 measures the temperature in the vicinity of the heat generating member 5, or measures the surface temperature or the internal temperature of the heat generating member 5, such as a surface thermometer.
It consists of a thermocouple, a thermostat and the like. In the thermostat (thermostat-type switch), the output signal is input to the cooling control circuit 69 or drives the electromagnetic operating portion of the electromagnetic opening / closing valve 68 without passing through the cooling control circuit 69 to start air supply.・ End.

Of course, in FIGS. 2 to 6 as well, the heating member 5 to be cooled includes a plurality of servomotors 51 of the electric shedding device, a main motor of the loom 2, an electric feed motor, Motors such as an electric winding motor, a dobby opening device, a cam opening device, a reed driving device, and the like may be used.

In all of the above, the attachment 3
For devices that operate using airflow, as devices directly involved in the weaving operation, there are devices that use airflow by air release and devices that use airflow by air suction. Some also use airflow from ancillary equipment that is not directly involved in the weaving operation, such as blast air for removal.

[0029]

According to the present invention, the following effects can be obtained. According to the first, third and fourth aspects of the present invention, the heat generating member is cooled by the discharge air from the accessory device that operates by using the air flow. Therefore, the heat release member can be reused at a low cost by reusing the discharge air. Can be cooled.

According to the second aspect, air from a compressed air source such as a compressor or a blower is supplied to an auxiliary device that operates using an air flow, and is also branched to cool an exothermic member. Since it is used, it is not necessary to provide a dedicated pressure air source for the heat generating member, so that the heat generating member can be cooled without increasing the cost.

According to the fifth aspect, the airflow from the weft insertion nozzle reaches the non-feed side of the loom and is guided to the heat generating member by the guide member. This makes it possible to obtain a cooling capacity according to the operating condition of the loom. Therefore, as the speed of the loom increases, the amount of heat generated by the heat-generating member increases. However, the airflow from the weft insertion nozzle is also increased to increase the cooling capacity, so that the temperature of the heat-generating member can be reliably prevented from becoming high.

Further, according to the present invention, the amount of heat generated by the heat generating member changes depending on the operating conditions of the loom. However, the cooling control device adjusts the cooling capacity so that the heat generating member is not cooled more than necessary. , Reduce air consumption. Thereby, an economical cooling system can be constructed.

[Brief description of the drawings]

FIG. 1 is a perspective view of a cooling device for a heat generating member of a loom according to the present invention.

FIG. 2 is a perspective view of a cooling device for a heat generating member of a loom according to the present invention.

FIG. 3 is a perspective view of a cooling device for a heat generating member of a loom according to the present invention.

FIG. 4 is a perspective view of a cooling device for a heating member of a loom according to the present invention.

FIG. 5 is a perspective view of a cooling device for a heat generating member of a loom according to the present invention.

FIG. 6 is a perspective view of a cooling device for a heat generating member of a loom according to the present invention.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 Cooling device for heat generating member of loom 2 Loom 3 Auxiliary device 30 Main nozzle 31 Auxiliary nozzle 32 Stretch nozzle 33 Weft end suction nozzle 34 Weft end collection box 35 Blower as air suction member 36 Pipe 37 Cloth dewatering device 38 Suction pipe 39 Steam-water separator 4 air 5 heat-generating member 51 plural servomotors of electric opening device 6 guide member 60 air guide 61 air intake 62 guide pipe 63 air discharge 64 air intake 65 air pipe 66 cooling control device 67 flow control valve 68 Solenoid on-off valve 69 cooling control circuit 7 weft 8 warp shedding 9 pressure air source 10 cutter 11 woven fabric 12 on-off valve 13 on-off valve 14 temperature detector 15 temperature setting device

Claims (6)

[Claims] 1. A weaving machine according to claim 1, wherein air discharged from an auxiliary device operating by utilizing an air flow is guided to a heating member of the loom to cool the heating member. Cooling system. 2. A loom, wherein air is branched by a guide member from a pressurized air source that supplies air to an auxiliary device that operates using an air flow, and is guided to a heat generating member of the loom. A cooling device for a heating member of a loom, characterized by cooling. 3. The cooling device for a heating member of a loom according to claim 1, wherein air from a pressurized air source flows into and is released from the attachment device, and is guided to the heating member by a guide member. 4. The cooling device for a heating member of a loom according to claim 1, wherein said auxiliary device has an air suction member, and air discharged from the air suction member is guided to the heating member. . 5. The loom according to claim 3, wherein the auxiliary device is a weft insertion nozzle of an air jet loom, and the guide member for the discharged air is provided on a non-feed side of the loom. Cooling device for heating members of loom. 6. In a loom, air is branched by a guide member from a pressurized air source that supplies air to an auxiliary device that operates using an air flow, and is guided to a heat generating member of the loom. 3. The loom according to claim 2, wherein a valve is interposed in the loom, and the valve is controlled by a cooling control device to change a supply state of air according to heat generated by the heat generating member, thereby cooling the heat generating member. Heating member cooling device.