JPH0340677B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention is applicable to transfer press systems such as
The present invention relates to a device that applies oil to desired parts of workpieces that are sequentially conveyed on a conveyance mechanism.

Conventional technology In general, in a transfer press system, when pressing workpieces such as blanks that are sequentially sent on a conveyor or other conveyance mechanism, lubricating oil such as squeezing oil is applied to the required locations in advance. A method of applying oil to improve drawability, bending workability, and formability has been used. The above-mentioned oil application work is usually carried out manually by an operator, using a method such as brushing only the parts that require oil application. On the other hand, instead of the manual operation described above, there is a method of creating a jig with oil supply nozzles set in multiple locations in advance and sequentially applying lubricating oil with this jig installed on the top of the workpiece, or a method of rotating Another method is to apply lubricating oil to the entire surface of the workpiece passing through it while supplying lubricating oil to the brush.

Problems to be solved by the invention However, in the conventional methods as described above,
Oil application methods based on manual labor by workers have the disadvantage of being tedious and inefficient. Furthermore, the method of using a jig with multiple oil supply nozzles has better workability compared to manual work, but since the blank material that is the workpiece has many different shapes, the shape of each blank material is different. There is a problem in that many types of jigs must be created to suit the needs. Furthermore, if a rotating brush is impregnated with lubricating oil and the entire surface of the blank is coated with oil, not only will it consume more oil than necessary, resulting in uneconomical results, but the excess oil will flow into the production area. It has drawbacks such as causing stains.

The object of the present invention is to propose an oil application device that improves various drawbacks of the conventional oil application methods as described above.

Means for Solving the Problems In order to achieve the above object, the present invention provides an apparatus for applying oil to an arbitrary position on the surface of an object to be oiled, which is sequentially sent by a conveyance mechanism. A sensor that detects the passage of an object, a plate-shaped base disposed above the passage of the object to be oiled, an oil pipe arranged in a densely curved manner over the entire surface of the base, and the oil pipe. Branch pipes led out from a plurality of locations, refueling nozzles fixed to the tips of each of the branch pipes and arranged so as to penetrate the base, a solenoid valve attached to each of the refueling nozzles, and a respective solenoid valve. It is equipped with a set of switches and a timer that set the predetermined position and time for oiling in accordance with the oiling position, and also opens only the oiling nozzle above the desired position to set the oiling time. The present invention provides an oil application device characterized by comprising a controller that drops a predetermined amount of oil onto an object to be oiled.

Function: With the above configuration, only the solenoid valves located at the parts desired to be oiled are opened for a predetermined period of time after detecting the passage of objects to be oiled that are being conveyed one after another at a constant speed. By appropriately setting a group of switches and a timer provided in the controller in advance, the oil supply nozzle is selectively opened and a predetermined amount of lubricating oil is dripped onto the surface of the object to be oiled. Furthermore, the detector detects that the next stage of the object to be oiled has been sequentially sent over the conveyance mechanism, and the same oiling operation is continued. The controller is given an input that instructs the open or closed state of multiple refueling nozzles depending on the model and shape of the object to be oiled, and when the model of the object to be oiled changes, the controller By giving new instructions to the lubrication system, it is possible to continue the lubrication work while changing the lubrication position.

Embodiments Hereinafter, embodiments of the present invention will be described in detail based on the drawings. FIG. 1 shows a schematic diagram showing the entire configuration of the apparatus. In the figure, 1 is a conveyance mechanism such as a foot bar, and a blank material 2, which is an object to be oiled, is conveyed over this conveyance mechanism 1 as indicated by an arrow A. transport. Furthermore, a sensor 4 is provided on a support rod 3 that bridges the upper part of the transport mechanism 1. This sensor 4 is constructed using a proximity switch or the like, and detects that the blank material 2 is transported by the transport mechanism 1. Further, a plate-shaped base body 6 is stably provided by a claw body 5 fixed to the support rod 3, and an oil feed pipe 7 is arranged in tight bends over the entire surface of the base body 6. A hydraulic pump 8 and a motor 9 are connected to one end of the oil pipe 7, and the other end of the oil pipe 7 is sealed, so that lubricating oil at a constant pressure is always supplied into the oil pipe 7. It's getting old. Further, branch pipes 10, 10... are led out from a plurality of locations of the oil pipe 7, and a base body 6 is attached to the tips of the branch pipes 10, 10.
Refueling nozzles 11, 11... provided so as to penetrate through them.
Connect. Furthermore, electromagnetic valves 12, 12, . . . are provided in proximity to the oil supply nozzles 11, 11, . The refueling nozzle 11 and the solenoid valve 12 are arranged as a husband and wife pair, and based on the action of the solenoid valve 12,
The open/close state of the corresponding refueling nozzle 11 is determined.
Incidentally, numeral 13 indicates a first forming press die that receives the oiled blank material and processes it.

On the other hand, a controller 14 is located adjacent to the transport mechanism 1.
will be established. The operation panel of the controller 14 is provided with snap switches 15, 15, . . . that constitute a plurality of switch groups corresponding to the solenoid valves 12, 12. The wires are wired so that only 12... are energized. 16 is a timer for setting the energization time to the electromagnetic valve 12; 17 is a number counter for determining the oil application interval; and 18 is a display plate that clearly indicates the part number of the blank material, etc. Depending on the type of blank material, it may not be necessary to apply oil to all the blanks, so the number counter 17 sets an interval such as applying oil once every three times the blank material 2 passes.

The operation of the device of the present invention will be explained below. First, the snap switch 15 is selectively turned on in advance so that only the oil supply nozzle located above the portion of the blank material 2 to be oiled that requires oiling is opened. Further, a timer 16 is set to determine the energization time to the solenoid valve 12, and a number counter 17 is used to set an oil application interval. Next, the motor 9 is activated to generate pressure oil from the hydraulic pump 8 and supply it into the oil feed pipe 7. This hydraulic pump 8 operates when the oil pressure in the oil pipe 7 decreases, and operates so that the oil pressure is always maintained at a predetermined pressure.

When the conveyance operation of the conveyance mechanism 1 is started in this state, the blank material 2 moves in the direction of arrow A, and when the first blank material 2 passes below the sensor 4, the sensor 4 detects this. The information is transmitted to the controller 14. After a predetermined time lag has elapsed since receiving the signal from the sensor 4, the controller 14 energizes the solenoid valves 12, 12 selected in advance by the snap switch 15 for the time set in the timer 16 to start refueling. Only the oil supply nozzles 11, 11 located above the desired position are opened to drop a certain amount of lubricating oil onto the blank material 2. Refueling nozzle 11,
11 is closed and the oil application is completed, the blank material 2
moves to the first forming press mold 13 side and begins the next stage of pressing work, and at the same time, the second blank material 2
passes below the sensor 4 and applies oil based on the same operation as described above. At this time, it is desirable that the conveyance mechanism 1 moves intermittently, but oiling can be performed even when the conveyance mechanism 1 moves at a constant speed.

In the above operation, the amount of oil dripping between the opening and closing of the oil supply nozzles 11, 11 is approximately determined by the opening time set by the timer 16 and the magnitude of the oil pressure in the oil pipe 7. By adjusting both appropriately, a constant amount of lubricating oil can be dripped at all times. Furthermore, when moving on to the drawing process, etc., if the drawing oil is applied to all the blank materials 2 each time, there is a risk of over-applying the oil, so it is not necessarily necessary to apply the oil to all the blank materials. For this purpose, the number of times counter 17 is set to determine the oiling interval, and the blank material to be oiled and the blank material not to be oiled are selected.

Effects of the Invention By using the oil application device according to the present invention described above, the following effects can be brought about. In other words, it is possible to apply oil fully automatically instead of the conventional manual operation, so that it is possible to eliminate cumbersome processes based on human labor. Moreover, since the position of oil application to the object to be oiled is accurate and the amount of oil applied can be kept constant at all times, it is possible to continue stable and efficient oil application work. If the model of the object to be oiled changes and you want to change the location where oil should be applied, simply turn the snap switch on and off, and power will be applied to the solenoid valve attached to the oil supply nozzle of the desired area. Since the opening state of the oil supply nozzle can be controlled, it is extremely easy to change the oil application position. In addition, by changing the energization time to the solenoid valve by adjusting the timer, the oil amount can be adjusted as appropriate.
It has various advantages such as not consuming more oil than necessary, and can be applied to transfer presses and other systems.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram showing the configuration of an oil application device according to the present invention. 1... Conveyance mechanism, 2... Blank material, 3... Support rod, 4
...sensor, 5...claw body, 6...base body, 7...oil pipe, 8...hydraulic pump, 9...motor, 10...branch pipe, 11...oil supply nozzle, 12...electromagnetic valve, 14...controller, 15...snap switch, 16...Timer, 17...Number of times counter, 18...Display board.

Claims (1)

[Scope of Claims] 1. A device for applying oil to any position on the surface of an object to be oiled that is sequentially sent by a conveyance mechanism, comprising: a sensor that detects passage of the object to be oiled; A plate-shaped base disposed above the passageway of the
An oil pipe arranged in tight bends over the entire surface of the base, branch pipes led out from a plurality of locations of the oil pipe, and fixed to the tips of the branch pipes so as to penetrate through the base. The apparatus is equipped with a refueling nozzle, a solenoid valve attached to each of the refueling nozzles, and a set of switches and a timer for setting a predetermined position to be lubricated and an lubricating time corresponding to each solenoid valve. The lubricant is characterized by comprising: a controller that releases only the lubricant nozzle located above the desired lubricant position to drip a predetermined amount of oil onto the object to be lubricated. Device.