Rapier or gripper weaving machine

• US 4,520,848 A
• Filed: 03/06/1984
• Issued: 06/04/1985
• Est. Priority Date: 03/23/1983
• Status: Expired due to Fees

• Current Assignee: Aktiengesellschaft Adolph Saurer
• Original Assignee: Aktiengesellschaft Adolph Saurer
• Inventors: Geiger, Kurt, Lucian, Anton
• Primary Examiner(s): Jaudon, Henry S.
• Application Number:
  US06/586,829
• Time in Patent Office: 455 Days
• Field of Search: 139/1 R, 139/45, 139/449, 184/6.26, 184/7, 184/12, 184/6.12, 184/6.24, 184/6.28, 184/7 R, 184/26, 184/27 R, 184/6
• US Class Current: 139/1.00R
• CPC Class Codes: D03J 1/003 Devices for lubricating machine parts
• CPC Class Codes: F16N 2230/10 Timing network
• CPC Class Codes: F16N 7/32 Mist lubrication splash lubrication F16N7/26

Abstract

In the rapier or gripper weaving machine a rapier or gripper rod is moved to-and-fro by a drive gear or wheel. An oil lubricating device is provided whose spray nozzle opens in the vicinity of the drive gear or wheel. This spray nozzle is connected to a pressure conduit located at the exit or outlet side of a mixing chamber. In the mixing chamber, a predeterminable quantity of oil taken from an oil reservoir can be admixed with a continuously transmitted flow of compressed air. A timer serves for the periodic activation of an oil dosing and injecting device located upstream or forwardly of the mixing chamber. The dosing action controlled by the timer periodically mixes a predetermined volume of oil into the continuous flow of compressed air being supplied to the spray nozzle. The spray nozzle is a molecular atomizing nozzle. These measures enable an absolutely accurate, constant and adjustable quantity of oil to be admixed with the flow of compressed air and further provide a practically droplet-free mist of oil at the drive gear or wheel of the rapier or gripper rod.

Claims

1. A rapier weaving machine having a rapier, comprising:

a drive element for imparting to-and-fro motion to the rapier of the rapier weaving machine;

an oil lubrication device having a spray nozzle opening in proximity to said drive element;

a pressurized conduit with which there is operatively connected said spray nozzle;

said oil lubrication device comprising a mixing chamber having an outlet;

said pressurized conduit being connected to said outlet of said mixing chamber;

said oil lubrication device further comprising;

means for continuously transmitting a flow of pressurized air through said mixing chamber;

an oil reservoir for supplying predetermined quantities of oil to said mixing chamber for admixture with said continuously transmitted flow of pressurized air through the mixing chamber;

an oil dosing and injecting device arranged upstream of the mixing chamber and operatively connected with said mixing chamber;

a timer provided for the periodical operation of said oil dosing and injecting device to periodically admix a predetermined volume of oil with the continuous flow of pressurized air supplied to the spray nozzle; and

said spray nozzle being a molecular atomizing nozzle.

2. The rapier weaving machine as defined in claim 1, wherein:

said oil lubrication device further comprises a solenoid valve controlled by said timer to periodically operate said oil dosing and injecting device;

said means for continuously transmitting said flow of pressurized air comprises a pressurized air chamber connectable to a source of pressurized air and connected to said oil dosing and injecting device by said solenoid valve; and

a further solenoid valve connecting said pressurized air chamber with said mixing chamber.

3. The rapier weaving machine as defined in claim 2, further including:

an electrical circuit incorporating said solenoid valve and said further solenoid valve and said timer; and

a switch for closing said electrical circuit when the rapier weaving machine is in operation.

4. The rapier weaving machine as defined in claim 1, further including:

a housing for surroundingly enclosing the region of said molecular atomizing nozzle opening at said drive element.

5. The rapier weaving machine as defined in claim 1, wherein:

said drive element comprises a drive gear.