JPH08108212A - Die holder for drawing steel - Google Patents

Abstract

PURPOSE: To improve the drawing performance of a steel wire, also the quality of a drawn wire and working life of a die by providing a storage chamber for a lubricating liquid and transformed matter on the outlet side of a die or accessorily providing lubricating liquid discharging means to the storage chamber. CONSTITUTION: A outlet holder 3a which has the storage chamber 6a for the lubricating liquid and transformed matter (v) and is attached and detached by a fixing means such as screwing is arranged on the outlet side of the die 5 for drawing steel. Or, the outlet holder 3b which has the storage chamber 6b for the lubricating liquid and transformed matter (v) and is attached and detached by the fixing means 4 such as screwing is arranged on the outlet side of the die 5 for drawing steel and also the feeding means 7a of the lubricating liquid for cleaning and the discharging means 7b of the lubricating liquid and transformed matter in the inside are accessorily provided to the storage chamber 6b.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is provided with a chamber for containing a lubricating liquid and a metamorphic material on the outlet side of a die for wire-drawing a hard steel wire to improve wire-drawing workability and die working life. The present invention relates to a steel wire drawing die holder having the following features.

[0002]

2. Description of the Related Art A conventional die holder for steel wire drawing is, for example, as shown in FIG. 2, an inlet side holder b is screwed to a frame a, and a die d is disposed on the outlet side of the inlet side holder b to form a frame. The output side holder e is screwed to a, and the die is sandwiched between the input side holder and the output side holder, and the steel wire w is conducted from the input side holder b to the die d and the output side holder e as shown by the arrow. At the same time, the lubricant is appropriately introduced into the wire drawing part of the die d to reduce the deformation resistance and friction resistance by the lubricant to improve the wire drawing workability and the working life of the die. (Not shown), the steel wire rod is continuously wet-drawn and gradually drawn to have a small diameter. For example, an emulsion type lubricating liquid having a relatively high viscosity, which contains an extreme pressure agent (phosphate salt, alkyl phosphonate, etc.), an oily agent (fatty acid salt, etc.) as a main component, and has water added, is applied.
In the figure, reference numeral v denotes a lubricating liquid or a metamorphic material (oxide or carbide in the lubricating liquid, iron oxide or a galvanized metal exfoliated from the surface of the wire) accumulated in the guide hole f of the outlet holder e during wire drawing.

Further, although a hard metal die such as tungsten carbide is usually used for wire drawing of a steel wire rod, recently, a diamond having a working life several tens of times that of a hard metal die. We are developing a die for steel wire drawing.

[0004]

In the conventional steel wire drawing die holder, as described above, the lubricating liquid or the metamorphic material is accumulated in the guide hole of the die outlet side, that is, the outlet side holder during wire drawing. Drainage of lubricating liquid and metamorphic material in the wire drawing part of the die is hindered, wire drawing workability and die working life are reduced, and the accumulated metamorphic material bends and deforms the steel wire rod after wire drawing. There is a problem such as scratching the wire and reducing wire drawing workability in the next step. Also, if the outlet side of the die is largely opened to discharge the lubricating liquid and the metamorphic material, a long receiver along the steel wire rod after wire drawing is required, which increases the size of the device and increases the consumption of the lubricating liquid. There are challenges.

The present invention was developed in order to solve the above-mentioned problems, and the object of the present invention is to provide a storage chamber for the lubricating liquid and the modified material on the outlet side of the die, The purpose of the present invention is to provide a steel wire drawing die holder in which a lubricating liquid supply / means for discharge is additionally provided in the storage chamber to improve the wire drawing performance of steel wire rods and the wire drawing quality and die working life.

[0006]

DISCLOSURE OF THE INVENTION According to the present invention, an outlet side holder having a storage chamber for a lubricating liquid and a modified material, which is attached and detached by a mounting means such as screwing, is provided on the outlet side of a steel wire drawing die. Or a delivery side holder that has a storage chamber for the lubricating liquid and the modified material and that is attached and detached by mounting means such as screwing,
By accommodating a means for supplying the lubricating liquid for cleaning and a means for discharging the internal lubricating liquid and the modified product in this storage chamber, the lubricating liquid and the modified product discharged from the outlet side of the die are stored in the storage chamber,
Alternatively, the cleaning liquid is supplied to the storage chamber and the stored lubricating liquid and the modified product are discharged at any time to smoothly maintain the discharge of the lubricating liquid and the modified product and to improve the wire drawing performance of the modified product. The problems described above are solved by preventing the deterioration and damage of the steel wire.

[0007]

[Function] The steel wire rod is introduced into the wire drawing part of the die with a proper amount of lubricating liquid, and the lubrication reduces the transformation resistance and frictional resistance of the wire drawing part of the die, resulting in smooth wire drawing. After that, it is led out from the outlet holder through the storage chamber on the outlet side of the die. Lubricating liquid and metamorphic substances discharged from the die outlet are stored in the accommodating chamber and separated from the steel wire rod, and the lubricating liquid and metamorphic substance in the accommodating chamber are discharged from the die outlet side. The discharge is maintained smoothly without hindering the wire drawing, the wire drawing workability and reliability of the steel wire rod are obtained, and the excellent wire drawing workability is achieved without any particular adverse effect on the steel wire rod after the wire drawing work. The quality of wire drawing and the working life of the die are effectively increased and maintained.

Further, the cleaning lubricating liquid is supplied into the housing chamber of the steel wire rod by means of the cleaning lubricating liquid supply unit provided inside the housing chamber and the discharging unit of the internal lubricating liquid and the metamorphic material, thereby lubricating the inside of the chamber. By discharging the liquid and the modified product, the wire drawing workability is further favorably maintained, and the above-described action and effect are enhanced.

[0009]

FIG. 1A shows a first embodiment of the present invention, and FIG.
The second embodiment is shown in FIG. In the figure, 1 is a holder frame, 2 is an inlet holder, 3a and 3b are outlet holders, 4
Is a mounting means such as screw attachment for detachably mounting the output side holder to the frame (screw attachment in the illustrated example), 5 is a die for steel wire drawing (various cemented metal dies or diamond die),
Reference numeral 5a is a wire drawing portion of the die, 6a and 6b are accommodating chambers for the lubricating liquid and the metamorphic material provided in the outlet holders 3a and 3b, and 7
Reference numerals a and 7b are a supply means and a discharge means for the lubricating liquid and the metamorphic material, which consist of a pipe with an opening / closing valve 8 connected to the upper and lower sides of the storage chamber 3b of the outlet holder, and 9a and 9b are outlets of the outlet holder. Guide holes provided on the side, v are accommodating chambers 6a and 6b
The lubricating liquid and the metamorphic material contained therein, w is a steel wire rod.

The first embodiment shown in FIG. 1 (A) has a storage chamber 6a for the lubricating liquid and the metamorphic material v on the outlet side of a steel wire drawing die 5, and is attached and detached by a mounting means 4 such as screwing. The die holder for steel wire drawing is provided with the output side holder 3a.

In the second embodiment shown in FIG. 1 (B), a die 5 for drawing steel is provided with an accommodation chamber 6b for the lubricating liquid and the metamorphic material v on the outlet side thereof, and is attached and detached by attaching means 4 such as screwing. The die holder for steel wire drawing is provided with the outlet side holder 3b to be installed and the supply means 7a for the cleaning lubricant and the discharge means 7b for the internal lubricant and the metamorphic material v in the storage chamber 6b. .

In the first embodiment (see FIG. 1A), the inlet side holder 2 and the outlet side holder 3a are provided on the front and rear sides of the frame 1.
The dies 5 are easily attached to predetermined positions in the holes of the frame 1 by screwing 2 a and 4 together. This outlet holder 3a is
It has an accommodation chamber 6a and a guide hole 9a which are formed in a relatively large volume inside, and when it is screwed 4 to the rear side of the frame 1, the accommodation chamber 6a is arranged on the exit side of the die 5. The steel wire w is passed from the inlet side holder 2 through the wire drawing portion 5a of the die 5 through the accommodation chamber 6a of the outlet side holder 3a at a predetermined speed as shown by an arrow, and a lubricating liquid (not shown). Is
The wire drawing part 5 from the entry side holder 2 by the steel wire rod w
It is appropriately introduced into a to reduce the deformation resistance and frictional resistance of the wire drawing part 5a, and the steel wire w is drawn smoothly to obtain excellent wire drawing performance. The life is extended.

During the above-mentioned wire drawing process, the lubricating liquid and metamorphic substances (oxides and carbides in the lubricating liquid, iron oxides and galvanized metal exfoliated from the surface of the wire) v are smoothly discharged from the outlet of the die 5. It is accommodated in the accommodation chamber 6a on the exit side.
The accommodating chamber 6a is set to have a volume capable of sufficiently accommodating the discharge of the lubricating liquid and the modified material during the wire drawing process in accordance with the working life of the die 5, and is accommodated in the accommodating chamber 6a during the wire drawing process. The lubricating liquid and the metamorphic substance v are separated from the steel wire w to smoothly maintain the discharge of the lubricating liquid and the metamorphic substance without hindering the discharge of the lubricating liquid and the metamorphic substance on the exit side of the die 5, and to perform the wire drawing process. The damage of the wire drawing after the wire drawing is effectively prevented without particularly affecting the subsequent steel wire rod w, and the wire drawing performance of the die and the quality accuracy of the wire drawing are maintained. Further, the guide hole 9a provided on the outlet side of the storage chamber 6a is formed to have a remarkably small diameter and an appropriate length as compared with the conventional example, and guides the steel wire rod w after wire drawing up and down, left and right, and thereby linearity is achieved. Increase.

Further, the outlet holder 3a is easily detached from the frame 1, and the lubricating liquid and the metamorphic material in the storage chamber 6a can be easily taken out and cleaned.

In the second embodiment (see FIG. 1B), the inlet side holder 2 and the outlet side holder 3b are similarly provided on the front and rear sides of the frame 1.
The die 5 can be easily mounted at a predetermined position in the hole of the frame 1 by screwing 2a and 4 with each other.
Is conducted from the inlet side holder 2 through the wire drawing portion 5a of the die 5 through the accommodation chamber 6a of the outlet side holder 3b at a predetermined speed as shown by an arrow. The lubricating liquid is introduced into the wire drawing part 5a from the inlet side holder 2 together with the steel wire w to reduce the deformation resistance and friction resistance of the wire drawing part 5a, and the steel wire w is smoothly drawn and excellent. Wire drawing performance can be obtained, and the working accuracy of this die as well as the working life of the die can be extended. Further, the guide hole 9b provided on the outlet side of the accommodation chamber 6b is formed to have a remarkably small diameter and an appropriate length as compared with the conventional example, and guides the steel wire rod w after wire drawing up and down, left and right to provide linearity. Increase.

Also, in the second embodiment, the accommodation chamber 6b of the outlet holder 3b is formed to have a relatively small volume as compared with the first embodiment, and the opening / closing valves 8 are provided on the upper and lower sides of the accommodation chamber 6b. The present invention is characterized in that a supply means 7a composed of a liquid supply pipe and a discharge pipe and a discharge means 7b are additionally provided, and the opening / closing valve 8 is opened periodically during the wire drawing process to accommodate the accommodating chamber with the supply means 7a (supply pipe). It is possible to easily clean the inside of the housing chamber 6b by discharging the lubricating liquid and the metamorphic material v in the storage chamber 6b by the discharging means 7b (discharge pipe) by causing the lubricating liquid to be press-fitted into the inside of 6b and ejected. Therefore, the wire drawing work of the steel wire rod w is smoothly maintained, and the wire drawing workability and the wire drawing quality are excellent, and the working life of the die is remarkably extended.

INDUSTRIAL APPLICABILITY The present invention is applied to a die holder using a cemented carbide metal die for steel wire drawing or a diamond die, and particularly when applied to a diamond die, from the viewpoint of improving the wire drawing workability and the working life of the die. Remarkably effective. Further, in a wet continuous wire drawing machine for continuously wire drawing with a plurality of dies all dipping in a lubricating liquid, the final die effectively functions and the above-mentioned actions and effects are remarkably exhibited. .

[0018]

According to the present invention, the steel wire rod constructed as described above is introduced into the wire drawing portion of the die together with an appropriate amount of lubricating liquid, and lubricated to reduce the transformation resistance and friction resistance and smoothly extend. After being wire-processed, it passes through the accommodation chamber on the outlet side of the die, is led out from the outlet holder, and the lubricating liquid and the metamorphic substances discharged from the outlet side of the die are accommodated in the accommodation chamber and separated from the steel wire material. The lubricating liquid and the metamorphic material stored in the chamber keep the wire drawing process smoothly without hindering the discharge of the lubricating liquid and the metamorphic material on the exit side of the die, and have a special effect on the steel wire rod after the wire drawing. In addition, the wire drawing quality, the wire drawing quality, and the die working life are significantly improved.

Further, during the steel wire drawing process, the cleaning lubricating liquid is supplied to the accommodation chamber by means of the cleaning lubricating liquid supply means provided inside the accommodation chamber and the discharging means for the internal lubricating liquid and the modified material. Lubricating liquid and metamorphic substances can be discharged, and the actions and effects described above are further improved. Further, as described above, it is compactly formed by the simple mechanism, and the productivity is remarkably improved because no special labor is required for cleaning the storage chamber.

[Brief description of drawings]

FIG. 1 is a vertical sectional view (A) showing a first embodiment of the present invention and a vertical sectional view (B) of a second embodiment.

FIG. 2 is a vertical sectional view showing a conventional example.

[Explanation of symbols]

 3a, 3b Delivery side holder 4 Mounting means 5 Dies (for steel wire drawing) 6a, 6b Storage chamber (lubricating liquid and metamorphic material) 7a Supplying means (lubricating liquid for cleaning) 7b Discharging means (lubricating liquid and metamorphic material) v Lubrication Liquids and metamorphosis w Steel wire rod

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI technical display location B21C 3/12 Z 9347-4E

Claims (2)

[Claims] 1. A steel, characterized in that an outlet side holder having a storage chamber for a lubricating liquid and a metamorphic material, which is attached and detached by a mounting means such as screwing, is provided on the outlet side of a steel wire drawing die. Die holder for wire drawing. 2. An outlet-side holder, which has a storage chamber for the lubricating liquid and the modified material and which is attached and detached by a mounting means such as screwing, is provided on the outlet side of the steel wire drawing die, and the storage chamber is provided in the storage chamber. A steel wire drawing die holder, characterized in that it is provided with a means for supplying a lubricating liquid for cleaning and a means for discharging the internal lubricating liquid and the metamorphic material.