JP4290693B2 - Molding agent application device for forging press - Google Patents

Description

  The present invention relates to a release agent coating apparatus for a forging press. More specifically, in a forging press, a mold release agent that sprays a mold release agent onto the mold surface while the pair of upper and lower molds are spaced apart in order to improve billet flow and mold release in the mold. The present invention relates to a coating apparatus.

As a release agent coating apparatus for a forging press, the technique shown in Conventional Example 1 (Non-Patent Document 1) is fundamental.
As shown in FIG. 4, in the release agent coating apparatus of Conventional Example 1, the spray nozzle 100 is slidably supported by a horizontal rail guide 103. The spray nozzle 100 includes a nozzle 101 at the tip and an engagement pin 102 at an intermediate portion. On the other hand, the upper end of the swing link 111 is rotatably attached to a stationary member at the upper end of the press, and the tip thereof is fitted to the engagement pin 102. The swing link 111 is connected to a drive link 112 connected to the slide S. As the slide S moves up and down, the swing link 111 swings and the spray nozzle 100 moves forward and backward. Yes. Therefore, the spray nozzle 100 approaches and separates from the mold in conjunction with the vertical movement of the slide S, and when the slide S rises and the upper mold separates from the lower mold, the nozzle 101 moves between the pair of upper and lower molds. When inserted and the slide S descends, the slide S operates to retract from the pair of upper and lower molds. The spray nozzle 100 is supplied with a release agent or air, and sprays the release agent from the nozzle 101 at the tip onto the mold surface, and blows away the excess release agent or scale with air. I have to.

  As shown in FIG. 5, the conventional spray nozzle 100 has a structure in which a release agent nozzle cylinder 101a and a blow-off air nozzle cylinder 101b are individually separated. Therefore, when the release agent nozzle cylinder 101a is arranged so as to coincide with the mold center (it is necessary to coincide with the mold for complete release), the air nozzle cylinder 101b is more eccentric than the mold center. I had to let it.

However, when the air nozzle cylinder 101b is decentered, the air blow direction to the mold is oblique, so that the scale accumulated in the mold and the excess release agent are not evenly blown out. .
Furthermore, since the speed of forging has recently been increased, the blow time has gradually decreased, and therefore, a non-uniform state of blowing has occurred more remarkably.

Plastic Processing Technology Series 4 Forging 350 pages Edited by Japan Society for Technology of Plasticity Corona Publishing August 30, 1995

  In view of the above circumstances, an object of the present invention is to provide a release agent coating apparatus for a forging press that can uniformly blow a scale and a release agent.

According to a first aspect of the present invention, there is provided a release agent coating apparatus for a forging press, wherein the forging press enters between the upper and lower molds when the pair of upper and lower molds are open and retreats when the upper and lower molds are closed. The release agent application device is provided with a spray nozzle having a nozzle portion at the tip, the release portion nozzle for injecting the release agent up and down, and air. An air nozzle that jets up and down, and the nozzle portion includes a release agent nozzle row in which a plurality of the release agent nozzles are arranged in series, and an air nozzle row in which a plurality of the air nozzles are arranged in series. The air nozzle rows are provided in one row in the center, and the release agent nozzle rows are provided in each row on both sides thereof .
The release agent coating apparatus for a forging press according to a second aspect of the present invention is the first invention, wherein the nozzle portion includes a nozzle cylinder having a square cross section, and the release agent nozzle and the air nozzle are formed on both upper and lower surfaces of the nozzle cylinder. the attachment, the interior of the nozzle cylinder is partitioned into a plurality of compartments in cross section, compartment fitted with pre KiHanare agent nozzle, air in the release agent nozzle provided with a release agent pipe for supplying the release agent has a air passage for supplying, compartment fitted with said air nozzle is characterized in that has a Rue ah passage to supply air to the air nozzle.

According to the first invention, the following effects are obtained.
a) Since the release agent nozzle for injecting the release agent and the air nozzle for injecting air are provided in the same nozzle cylinder, both the release agent and the air hit the surface of the mold at right angles. Insufficient coating of the agent does not occur, and no air scale or release agent blow-off occurs.
b) Since both the release agent nozzle and the air nozzle are arranged in parallel, the sprayed release agent or air hits the surface of the mold even when the nozzle tube enters or retreats. Therefore, the release agent can be applied and the applied release agent and the scale can be blown out for a long time, and the release agent can be reliably applied and removed.
c) Since two mold release agent nozzle rows are applied to one mold, the mold release agent can be reliably sprayed on the corners of the mold. Moreover, since the air nozzle row is in the center, the scale and excess mold release agent can be reliably removed by the air directed to the middle of the mold.
According to the second aspect of the invention, since the nozzle cylinder has a plurality of compartment structures, it is light in weight and high in rigidity. Since the compartment is used as an air passage, no extra parts such as pipes are required, and a simple configuration can be achieved.

Next, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a plan view of a nozzle in a release agent coating apparatus according to an embodiment of the present invention. FIG. 2 is a side view of the nozzle. 3 is a cross-sectional view taken along line III-III of FIG.

  The nozzle 1 shown in FIGS. 1 and 2 is a member attached to the tip of the spray nozzle 100 in the basic structure of the release agent coating apparatus shown in FIG. Reference numeral 10 denotes a nozzle cylinder, which is a cylindrical member having a square cross section as will be described in detail later. A release agent nozzle 3 and an air nozzle 4 are respectively attached to the upper surface and the lower surface of the nozzle cylinder 10 (see FIGS. 2 and 3).

A plurality of release agent nozzles 3 are arranged in series to form a release agent nozzle row 3A. A plurality of the air nozzles 4 are arranged in series to form an air nozzle row 4A.
As shown in FIG. 1, the release agent nozzle row 3A and the air nozzle row 4A are provided in parallel to each other. The air nozzle rows 4A are provided in one row at the center, and the release agent nozzle rows 3A are provided on each side of the air nozzle rows 4A.

As described above, the nozzle 1 of the present embodiment includes the nozzle cylinder 10 having a square cross section, and the release agent nozzle 3 and the air nozzle 4 are attached to the upper and lower surfaces of the nozzle cylinder 10. The inside of the nozzle cylinder 10 is partitioned into a plurality of compartments in a sectional view.
That is, as shown in FIG. 3, at the center in the width direction, the two vertical plates 11 and 12 are attached with a space therebetween to form a central compartment 21, a right compartment and a left compartment. In the right compartment, a horizontal plate 13 is attached in the middle in the vertical direction and is divided into an upper right chamber 23 and a lower right chamber 24. Further, a horizontal plate 14 is attached to the left compartment in the middle in the vertical direction, and is divided into an upper left chamber 26 and a lower left chamber 27.

The central compartment 21, the upper right / lower compartments 23, 24, and the upper left / lower compartments 26, 27 are all air passages.
Also, one release agent pipe 31 is installed in each of the right upper and lower compartments 23 and 24 and the left upper and lower compartments 26 and 27, and the release agent is supplied to each release agent nozzle 3. ing.

  The structure of the release agent nozzle 3 will be described in detail with reference to FIG. 3. There is a gap between the outer periphery of the original nozzle 32 and the inner periphery of the introduction tube 33 so that air can pass therethrough. A tip nozzle 34 is provided at the tip of the introduction cylinder 33 so that the release agent from the original nozzle 32 and the air from the introduction cylinder 33 merge. As described above, compressed air similar to that in the central compartment 21 is supplied to the compartments 23, 24, 26, and 27, and this air is introduced from the introduction cylinder 33 to the tip nozzle 34. Therefore, air is mixed with the oil sprayed from the original nozzle 32, and the release agent is sprayed in a mist form from each release agent nozzle 3.

Next, the advantages of this embodiment will be described.
According to this embodiment, since the release agent nozzle 3 for injecting the release agent and the air nozzle 4 for injecting air are provided in the same nozzle cylinder 10, both the release agent and air are perpendicular to the surface of the mold. Therefore, insufficient application of the release agent does not occur, and the scale and release agent are not blown out by air.
Further, since both the release agent nozzle 3 and the air nozzle 4 are arranged in parallel, even when the nozzle cylinder 10 is moving in and out, the sprayed release agent and air are used in the mold. Since it hits the surface, the release agent can be applied, and the applied release agent and the scale can be blown out for a long time, thereby enabling reliable release and removal.
Further, since the two rows of release nozzle rows 3A are applied to one mold, the release agent can be reliably sprayed on the corners of the mold. Further, since the air nozzle row 4A is in the center, the scale and the excess mold release agent can be reliably removed by the air directed to the middle of the mold.
Further, since the nozzle cylinder 10 has a plurality of compartments (the central compartment 21, the upper right / lower compartments 23, 24, the upper left / lower compartments 26, 27), it is light and highly rigid, and these compartments serve as air passages. This eliminates the need for extra parts such as pipes and allows a simple configuration.

Next, another embodiment of the present invention will be described.
In the present invention, the propulsion mechanism of the release agent coating apparatus may be of any type. Therefore, the propulsion mechanism of the release agent coating apparatus may be any type other than the type propelled by the link mechanism as shown in FIG.

It is a top view of the nozzle in the mold release agent coating device which concerns on one Embodiment of this invention. It is a side view of the nozzle. It is sectional drawing shown by the III-III line of FIG. 1 in the same nozzle. It is a side view which shows the basic structure of the mold release agent application apparatus of a forging press. It is a top view of the nozzle 101 in the mold release agent coating apparatus of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Nozzle 3 Release agent nozzle 3A Release agent nozzle row 4 Air nozzle 4A Air nozzle row 10 Nozzle cylinder 21 Central compartment 23 Upper right chamber 24 Right lower chamber 26 Left upper chamber 27 Left lower chamber

Claims (2)

In the forging press, a mold release agent coating apparatus that enters between the upper and lower molds when the pair of upper and lower molds is open and retracts when the upper and lower molds are closed,
The mold release agent coating apparatus includes a spray nozzle having a nozzle portion at the tip,
The nozzle portion includes a release agent nozzle that injects a release agent up and down, and an air nozzle that injects air up and down,
The nozzle part has a release agent nozzle row in which a plurality of the release agent nozzles are arranged in series, and an air nozzle row in which a plurality of the air nozzles are arranged in series,
The release agent coating apparatus for a forging press, wherein the air nozzle rows are provided in a row in the center, and the release agent nozzle rows are provided on both sides of the air nozzle rows . The nozzle portion includes a nozzle cylinder having a square cross section, the release agent nozzle and the air nozzle are attached to both upper and lower surfaces of the nozzle cylinder, and the inside of the nozzle cylinder is partitioned into a plurality of compartments in a cross-sectional view , compartment fitted with pre KiHanare agent nozzle has a air passage for supplying air to the release agent nozzle provided with a release agent pipe for supplying the release agent, compartment fitted with said air nozzle, release agent application device for the forging press of claim 1, wherein <br/> that has become Rue ah passage to supply air to the air nozzle.

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