JPS6228708B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a punch lubricant application device.

Conventionally, for example, when applying lubricant to the outer peripheral surface of a forging punch, it has been applied by hand using a brush or the like, or by spraying the lubricant. For this reason, the hand-applying method requires manpower, and it is labor-intensive and inefficient to apply it evenly, and the spray method also requires manpower, and more lubricant is sprayed than necessary, resulting in wastage and fires. There were many inconveniences, including the risk of

According to the present invention, many of these conventional inconveniences are eliminated, and it is possible to provide a punch lubricant application device that can be unmanned, efficiently applies lubricant to the necessary minimum amount, and is safe. It is something.

An embodiment of the present invention will be described below with reference to the drawings. In FIGS. 1 to 3, A is a lubricant storage tank, B is a lubricant supply pump, C is a lubricant injection nozzle, D is a lubricant application member, and E is a conveyance device for the lubricant application member D. P is a punch to which lubricant is applied.

The lubricant stored in the lubricant storage tank A is supplied to the lubricant supply pump B through the pipe 1. As shown in FIG. 4, in the lubricant supply pump B, a piston 5 is slidable inside a cylinder body 4 whose both ends are fixed to cylinder covers 2 and 3. Air chambers 6a and 6b separated by the piston 5 are provided with air inlets and outlets 7a and 7b. The piston rod 8 protrudes through one of the cylinder covers 2, and a lubricant storage chamber 9 is provided between the piston rod 8 and the cylinder cover 2 by forming a narrow diameter portion 8a in the middle, and this chamber has a lubricant suction port. 10a and discharge port 10
b is provided. The tip of the narrow diameter portion 8a is a threaded portion 8
It becomes b. A cylindrical body 11 is fitted into the threaded portion 8b, and a nut 12 for adjusting the stroke of the piston is screwed onto the tip of the threaded portion protruding from the cylindrical body. By changing the screwing position of the nut 12, it is possible to adjust the stroke as well as the amount of lubricant to be discharged.

The lubricant in the lubricant storage chamber 9 is supplied to the lubricant injection nozzle C through the pipe 13. As shown in FIG. 5, a nozzle body 15 is fixed to the tip of the cylindrical body 14 of the lubricant injection nozzle C, which has a center hole 15a and a female thread 15b, and has a dish-shaped recess 15c on the upper surface. . Also, the center hole 16
a, and a male screw 16 screwed together with the female screw 15b.
b, and a plurality of radial communication holes 16c communicating from the center hole 16a to the recess 15c, and a nozzle lid body 16 that faces the upper surface of the nozzle body 15 is screwed and fixed to the nozzle body. A narrow gap 17 is provided on the outer periphery of the opposing surfaces of the nozzle body 15 and the nozzle lid 16, and communicates with the recess 15c. Note that instead of a gap, a thin triangular radial groove may be provided on the opposing surface. Such a lubricant injection nozzle C is firmly supported by the frame 17. The frame 17 also has the function of receiving surplus of the injected lubricant, and a surplus lubricant receiving box 19 is disposed below an opening 18 provided on the lower surface.

As shown in Figures 1 and 6, the lubricant application member D is made of a material that can withstand high temperatures and is formed in a state in which it is easily impregnated with lubricant. A stainless steel scrubbing brush 20 is formed by preparing a large number of individual scrubbing brushes 20a and arranging them radially to form a ring shape. The stainless steel wire 21 is passed through the ring of each scrubbing brush 20a and fixed so that the ring-shaped inner diameter is large enough to elastically contact the punch P. Further, a cylindrical fixed frame 22 is arranged around the outer periphery of the stainless steel scrubber 20, and a stainless steel wire 22 is attached to this.
3... are used to fix the individual scrubbing brushes 20a... A lubricant injection nozzle C is fitted into the center of the ring of the stainless steel scrubbing brush 20. Further, the fixed frame 22 is held in a gap between substantially ring-shaped holding frames 24a and 24b, and this holding frame is connected to the conveying device E via a mounting plate 25.

The conveyance device E for the lubricant application member D is as shown in the first to third figures, and has two parallel guide rods 27a and 27b erected on a fixed gate-shaped frame 26, and a hydraulic A cylinder 28 is supported. A movable frame 29 is connected to the tip of the ram 28a of the hydraulic cylinder 28 and is movable up and down by sliding guide rods 27a and 27b. Two guide rods 30a and 30b penetrate the movable frame 29 so as to be able to slide in the horizontal direction, and
For example, a hydraulic cylinder 31 is mounted so that its ram 31a can be extended in the horizontal direction. Ram 31a
A mounting plate 25 of the lubricant application member D is connected to the tip of the guide bar 30a, 30b after this mounting.
The tip is stuck.

Next, the operation of applying lubricant to the punch P will be explained. As shown in the first diagram, the lubricant application member D
is located within the frame 17, and the lubricant supply pump B is operated in a state in which the lubricant injection nozzle C is located at the center of the ring. Piston 5 shown in the fourth diagram
rises from the lower position, and for this reason the lubricant in the storage chamber 9 is discharged from the discharge port 10b, and the pipe 13
It is sent to the injection nozzle C through. The lubricant reaches the recess 15c from the center holes 15a, 16a through the communication holes 16c, and is sprayed from the gap 17 toward the stainless steel scrubber 20 in all directions. Since the stainless steel scrubbing brush 20 has sufficient impregnating properties, it is sufficiently impregnated with lubricant, but the excess lubricant drips onto the frame 17 and flows out through the opening 18 into the receiving box 19 and is stored therein. Then, the hydraulic cylinder 28 is actuated to slightly advance the ram 28a and raise it to the movable frame 29'. Then, the hydraulic cylinder 31 is operated to move the ram 31a forward in the horizontal direction. In this position, like the lubricant application member D', it is located below the punch P, and the lower end of the punch P faces the center of the ring of the stainless steel scrubber 20. Then, when the hydraulic cylinder 28 is operated again and the ram 28a is advanced, the movable frame slides the guide rods 27a, 27b from 29' to 29'' and moves upward, during which time a punch is inserted into the ring of the stainless steel scrubber 20. Once fitted, the scrubbing brush moves upward from D' to D'' while elastically contacting the outer periphery of the punch. For this reason, the lubricant impregnated in the scrubbing brush 20 oozes out and adheres to the outer peripheral surface of the punch. Next, when the hydraulic cylinder 28 is actuated in reverse to move the ram 28a backward, the movable frame is lowered, the hydraulic cylinder 31 is actuated to move the ram 31a backward, and the hydraulic cylinder 28 is actuated again to move the ram 28a back. When it is further retreated, it returns to its original position as shown by the solid line in FIG.

After the desired forging process is performed by operating the punch P, when the punch returns to its original position shown by the solid line in FIG. 1, the punch is again coated with lubricant by the above-described operation.

When adjusting the amount of lubricant sprayed, the threaded portion 8b is raised or lowered by tightening or loosening the nut 12 shown in FIG. As a result, the volume of the lubricant reservoir 9 at the lowered position of the piston rod 8 decreases or increases. In other words, the amount of lubricant stored changes. Since this stored amount corresponds to the amount injected once to the lubricant application member, the amount of lubricant injected is adjusted thereby.

As described above, according to the present invention, when applying lubricant to a punch, there is no need to rely on manual labor, and unmanned operation is possible, improving efficiency. In addition, the amount of lubricant injected can be adjusted, eliminating waste.
It has many excellent effects, such as being able to apply it evenly to the outer circumferential surface of the punch, and being safe without the risk of fire.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; FIG. 1 is a front view, FIG. 2 is a plan view, FIG. 3 is a right side view of the conveying device, and FIG. 4 is an enlarged longitudinal section of the lubricant supply pump. 5 is an enlarged partially cutaway front view of the lubricant injection nozzle, and FIG. 6 is an enlarged partially cutaway cross-sectional view of the lubricant application member. A...Lubricant storage tank, B...Lubricant supply pump, C...Lubricant injection nozzle, D...Lubricant application member, E...Transport device for lubricant application member, P...
...Punch, 28, 31...Hydraulic cylinder, 8...
Piston rod, 8b...Threaded part, 12...Nut.

Claims (1)

[Scope of Claims] 1: a lubricant storage tank; a lubricant supply pump connected to this tank and capable of discharging a predetermined amount of lubricant; and a lubricant supply pump connected to this pump that sprays lubricant in all directions. a lubricant spray nozzle that can be fitted into the punch, a ring-shaped inner diameter that can elastically contact the outer circumferential surface of the punch, and that can be impregnated with lubricant, and this applicator member is connected. 1. A punch lubricant applicator, comprising: a conveying device for an applicator that can move up and down and move forward and backward. 2. In claim 1, the lubricant supply pump includes a threaded portion provided at the tip of the piston rod, and a nut screwed onto the threaded portion protruding to the outside to control the amount of lubricant discharged. A punch lubricant application device characterized by being adjustable.