JP3324202B2 - Method and apparatus for supplying forging slag to forging machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a "parts former".
The present invention relates to a method and technology for automatically supplying a slag, which is a material for forging, to a cold or warm transfer type automatic forging machine called a horizontal type.

[0002]

2. Description of the Related Art Most of metal parts such as stainless steel water supply parts such as bolts, nuts, cap nuts, plugs and adapters are cut from a round bar-shaped steel material to a predetermined length. It is manufactured by stamping and forging the slag prepared in this manner with an automatic forging machine. In order to perform this forging smoothly and efficiently, it is necessary to supply the slag so as to be suitable for the forging machine.

Conventionally, slag is supplied to a forging machine by, for example, temporarily receiving slag supplied from a feeder into an index machine, dropping the slag into a chute in a predetermined direction, storing the slag in a holder, and extruding the slag with a pusher pin. It was based on the technique of biting the chuck.

Such a supply is easy when the ratio L / D of the length and the diameter called the "aspect ratio" of the columnar slag is relatively large (for example, 3 to 4), but is small. Was extremely difficult or impossible.

[0005] However, as the production of parts by the part former becomes widespread, forging of various products is intended.
A means for automatically supplying a slag having a small D has been required. In addition, in order to meet the demand for mass production of many kinds, it is desirable to supply slag by easily coping with a change in slag dimensions including L / D.

[0006]

SUMMARY OF THE INVENTION It is an object of the present invention to meet the above-mentioned demand by providing an L / D of 1.5 to 1.0.
Or a slag having a wide range of L / D, including those below, can reliably supply to the forging machine, and quickly respond to changes in L / D. It is an object of the present invention to provide a slag supply method that can be used and an apparatus used for implementing the method.

[0007]

The method for supplying slag for forging to a forging machine according to the present invention is a method for supplying slag for forging, which is obtained by cutting a bar into a cylindrical shape, to a forging machine. After the supplied slag is conveyed by a belt conveyor, it is dropped in a shooter and stored in a holder, and the stored slag is sequentially extruded and bitten by a forging machine chuck.
According to / D, those with a small L / D are conveyed by placing a cylinder vertically, and falling down so as to roll down in the shooter.
On the other hand, those with a large L / D are transported with the cylinder placed sideways,
It is made to slide down the inside of the shooter, injects fluid in the middle of the fall, changes the direction of the cylinder to the horizontal direction, and stores the cylinder in the holder with the axis of the cylinder facing the horizontal direction and stacked. .

The L / D that determines the boundary between placing the slag vertically and horizontally on the conveyor is slightly different depending on the dimensions of the entire slag and the method of receiving it from the feeder.
It is around 1.5. Therefore, it is appropriate that the slag having an L / D of 1.5 or less be placed vertically and the slag having an L / D exceeding 1.5 be placed horizontally. Therefore, in the description of this specification, when L / D is “small”, it means that L / D is 1.5 or less, and when L / D is “large”, L / D is 1. Means greater than 5.

An apparatus for supplying a forging slag to a forging machine according to the present invention for carrying out the above-described method is shown in FIG.
As shown in FIGS. 2 and 3, an example of a detailed configuration is shown in FIG. 2 and FIG.
Conveyor for conveying slag supplied from a parts feeder (3), a shooter (5) connected to the conveyor, and a holder for receiving and storing the slag below the shooter. (6) and a pusher pin (7) for sequentially extruding the stored slag to bite the chuck of the forging machine, and having a small L / D according to the ratio L / D of the height and the diameter of the cylinder ( 1A) is to place a cylinder vertically on a conveyor,
Those having a large / D (1B) have slag arranging means (not shown) to be placed sideways, and as a shooter (5), L
A rolling shooter (5A) with a shape / dimension in which a slag with a small / D rolls down and a sliding shooter (5B) with a shape / dimension in which a slag with a large L / D slides are provided. It is characterized in that a layer (8) for ejecting a fluid toward the falling slag and changing its direction from vertical to horizontal is provided.

When the forging by the forging machine is hot working, it is necessary to heat the forged slag to a temperature suitable for working. As shown in FIG. 1, a heating device (9) for heating the slag to a temperature suitable for processing may be provided on the conveying path of the conveyor.

[0011] The slag is placed vertically according to the L / D of the cylinder,
Alternatively, laying sideways is often the case, ie L / D
If is very large or clearly small,
Since it is realized by a regular shaking parts feeder etc.,
No special measures are required. In contrast, L / D is 1.
In order to vertically place objects in the range of 0 to 1.5, it is not enough to apply only the vibration, and it will be necessary to take measures such as using a combination of this and a perforated plate through which slag just passes.

[0012]

FIG. 2 and FIG. 3 show details of the lateral conveyance by the conveyor, the fall through the shooter, and the direction change performed on the slag having a large L / D.

First, in FIG. 2, slugs (1A) having a small L / D are arranged vertically on a conveyor (4), that is, their central axes are parallel. The end of the conveyor may be formed into a roll (41) as shown and rotate with the conveyor, may be in the form of a stationary roll separate from the conveyor, or may simply end up as a slide. Is also good. The slag is pushed later and falls one after another. In any case, the connection to the shooter (5A) and the shape and dimensions inside the shooter must ensure that the slag rolls and falls.

Next, in FIG. 3, the slugs (1B) having a large L / D are arranged side by side on the conveyor (4), that is, with their central axes substantially aligned. The fact that these fall into the shooter is the same as in the case of the slug having a small L / D in FIG. 2, and the way of connection to the shooter (5B) and the inside dimensions of the shooter ensure that the slag slides and falls. This is also the same as the above case.

The facility unique to FIG. 3 in contrast to FIG. 2 is the layer (8) of means for turning the falling slag by fluid injection. The fluid may be air, which also requires a relatively small amount of injection. This is because when the slag falls into the holder (6), the axis may be inclined to such an extent that the axis is stacked in parallel.

Extrusion with a pusher pin (7),
The grasping of the slag by the chuck of the transfer device of the forging machine can be performed according to a known technique.

[0017]

According to the present invention, the supply of forging slag to the parts former can be stably performed regardless of the magnitude of L / D. In particular, since slag with a small L / D can be smoothly supplied, which has been difficult to supply automatically in the past, not only long ones such as bolts but also short ones such as nuts can be efficiently manufactured. It will be apparent from the above description that the switching of the slug L / D can be easily handled.

[Brief description of the drawings]

FIG. 1 is a conceptual cross-sectional view showing main components of a device for supplying a slag for forging to a forging machine of the present invention, which also includes front and rear devices.

FIG. 2 is a detailed view showing one embodiment of a main part of the apparatus of FIG.

FIG. 3 is a detailed view showing another embodiment of a main part of the apparatus of FIG. 1;

[Explanation of symbols]

 1, 1A, 1B Forging slag 2 Forging machine 3 Parts feeder 4 Conveyor 5, 5A, 5B Shooter 6 Holder 7 Pusher pin 8 Layer 9 Heating device

Continuation of the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) B21J 1/00-13/14 B21J 17/00-19/04 B21K 1/00-31/00

Claims (3)

(57) [Claims] 1. A method of supplying a forging slag, which is obtained by cutting a bar material into a cylindrical shape, to a forging machine, wherein the slag supplied from a parts feeder is conveyed by a belt conveyor, and then dropped in a shooter to a holder. It consists of extruding the stored slag in sequence and squeezing it into the chuck of the forging machine. Depending on the ratio L / D between the height and the diameter of the cylinder, if the L / D is 1.5 or less, the cylinder is vertical. And drop it so that it rolls down in the shooter.
If D is greater than 1.5, place the cylinder aside and transport it, slide it down in the shooter, and inject a fluid during the fall to change the direction of the cylinder to the horizontal direction. Is stored in a holder in a stacked state facing sideways. 2. An apparatus for feeding a forging slag, which is obtained by cutting a bar into a cylindrical shape, to a forging machine, comprising: a conveyor for conveying the slag supplied from a parts feeder; a shooter connected to the slag; And a pusher pin for sequentially extruding the stored slag to bite it into the chuck of the forging machine. According to the ratio L / D of the height and the diameter of the cylinder, L / D is 1. Those having 5 or less have a slag arrangement means for placing a cylinder vertically on a conveyor, and those having an L / D exceeding 1.5 have a slag arrangement means for placing horizontally, and a slag having an L / D of 1.5 or less rolls as a shooter. A rolling shooter with a falling shape and dimensions, and a sliding shooter with a shape and dimensions that allow slag with an L / D of more than 1.5 to slide down. A supply device comprising a layer between which a fluid is sprayed toward a falling slag to change its direction from vertical to horizontal. 3. The supply device according to claim 2, wherein a heating device for heating the slag to a temperature suitable for processing is provided on a conveying path of the conveyor.