JP4196316B2 - Surface processing method and apparatus for long objects - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a method and apparatus for surface processing of a long object having a circular cross section, a circular shape, a polygonal shape, an irregular shape, etc., and more specifically, roughing the surface of the long object, removing oxidized scale, and rusting. The present invention relates to a method and apparatus suitable for performing surface processing such as dropping, surface polishing, foreign matter removal, deburring, and rounding.
[0002]
[Prior art]
When the surface processing of the long object described above is performed using a tool, a grinding wheel, a brush, a belt sander, etc., especially when the long object is a wire having a small cross-sectional dimension, the outer periphery thereof is made continuous. It is extremely difficult to cut uniformly. For this reason, conventionally, when removing oxide scale and rust such as wire rods, pickling method, peeling method or peeling method using a die (for example, refer to 2857279), and removing deposits For this, an alkali cleaning method, an organic solvent cleaning method, or the like is used.
[0003]
[Problems to be solved by the invention]
However, the pickling method uses a large amount of water, which increases the cost of wastewater treatment and environmental measures, and makes the equipment large-scale, and when processing thin wires, the wires come into contact with each other. Since it is difficult to immerse the whole in the pickling solution uniformly, uneven processing occurs, and when the long object is iron-based, the mechanical properties are reduced depending on the acid (chemical) used. There was a problem such as. In addition, in the pickling method, since the facilities are large as described above, once the operation is stopped during the operation of the treatment, the long object is excessively immersed in the acid, and the surface thereof is significantly deteriorated. Therefore, it is difficult to inline the processing apparatus by the pickling method.
[0004]
Also, with the skinning method, in which a long object is passed between cutting tools such as composite blades or dies to scrape off foreign matter, etc., the cutting marks remain on the long object, or tension due to cutting resistance is applied to thin wire materials, etc. There are problems such as cutting. In addition, the alkali cleaning method and organic solvent cleaning method are very difficult to manage in terms of protecting the working environment because the liquid used is a chemical, as in the pickling method, and the equipment is large because it is a wet method. There was a problem to do.
[0005]
The present invention has been made in view of the above circumstances, and the object thereof is a long object that can be inlined without causing environmental problems and without deteriorating the mechanical properties of the long object. It is an object to provide a surface processing method and apparatus therefor.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, the surface processing method for a long object in the present invention is a method for surface processing a long object, and the long object is a required size by two or more humidified elastic rollers. The step of sandwiching with the force of, and moving the elongate object so as to reciprocate in the width direction of the elastic roller, and making the peripheral speed of the elastic roller slower than the moving speed of the elongate object A step of rotating the elastic roller in the same direction as the moving direction of the long object or in the opposite direction, and a step of introducing a hard abrasive material in the form of a granular material between the elastic rollers, The abrasive is moved relative to the long object, and the long object is rubbed to surface-process the long object.
[0007]
Here, the elastic roller used in the present invention has elasticity so that the abrasive can be held between the long object and the frictional force generated when the long object is allowed to pass through. In addition, any size, shape, and material can be used as long as they can be rotated by an electric motor.
[0008]
In the present invention, the magnitude of the force with which two or more elastic rollers sandwich a long object is such that the elastic roller that sandwiches the long object can rotate with respect to the long object with an abrasive interposed. is there. In addition, by moving the elongated object and rotating the elastic roller so that the peripheral speed of the elastic roller is faster or slower than the moving speed of the elongated object, the abrasive is turned into the elongated object. On the other hand, the long object is surface-processed by relatively moving it and rubbing the long object.
[0009]
In addition, the soft abrasive used in the present invention is a simple plant or a mixture of plants having grindability such as rice husks, straw leaves, and wood bandits. These abrasives are suitable for so-called mild surface finishing and removal of deposits on the surface of long objects.
[0010]
In addition, the hard abrasive used in the present invention is a simple substance such as alumina, ceramics, glass powder, non-ferrous metal powder, metal powder, or a mixture thereof. These abrasives are suitable for powerful processing such as oxide scale removal, rust removal, foreign matter removal, deburring, and rounding of long objects.
[0011]
In addition, the mixture of soft and hard materials used in the present invention is a plant having grinding properties such as rice husks, straw leaves, wood band, alumina, ceramics, glass powder, non-ferrous metal powder, metal powder, etc. A mixture of these. These abrasives are suitable for lightly grinding or polishing the surface of long objects.
[0012]
In addition, the size of the abrasive used in the present invention is determined by the correlation with the cross-sectional dimension of the long object, but when the particle size is 0.02 to 2.50 mm, it is transferred to the container. Is easy to supply, and is excellent in removing foreign matter from the surface of a long object. Moreover, the surface processing function can be enhanced by humidifying the elastic roller.
[0013]
In addition, the elongate object in the present invention refers to a material having a cross-sectional shape of a circle, a substantially circle, a polygon, an irregular shape, or the like, and the material thereof is not limited.
[0014]
In addition, in the present invention, a long object is basically pressed and gripped from two opposite directions, but may be pressed and gripped from three directions. In addition, in the case where it is not sufficient even though the almost uniform surface processing is expected, the surface processing may be performed again at a position where the pressing position is displaced by a required angle around the long object.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of a long surface processing apparatus to which the invention is applied will be described in detail with reference to FIGS. As shown in FIG. 1, the surface processing apparatus includes two elastic rollers 1 and 1 (see FIG. 2) that can hold a wire W as a long object facing each other, and two elastic rollers 1.・ Accessing / separating means 2 for approaching / separating 1 from each other (see FIG. 2), rotating means 3 for rotating the elastic rollers 1 and 1, and a granular abrasive material between the elastic rollers 1 and 1 The nozzles 4 and 4 (see FIG. 2) as the abrasive material injection means to be blown in, and the reciprocating means 5 and 6 for reciprocating the long object in the longitudinal direction of the elastic rollers 1 and 1 are configured. . As shown in FIG. 4, the elastic roller 1 has a large number of polishing material holding grooves 7 and 7 extending in the same direction as the rotation shaft, and engraved on the peripheral surface at substantially equal intervals.
[0016]
Further, as shown in FIGS. 2 and 3, the approaching / separating means 2 is fixed to a box-like support frame 8 which is fixedly arranged so as to oppose left and right in FIG. 2 and through support shafts 9 and 9. Roller support members 11 and 11 on which the two elastic rollers 1 and 1 are rotatably mounted via rotating shafts 10 and 10 and supported on the upper part, respectively, and in FIG. The two arms 12 and 12 having an upper end fitted to the front end of the arm 9 and having a letter C shape, and a compression that is attached to the support frame 8 and biases the lower portions of the two arms 12 and 12 inward. The coil springs 13 and 13, the guide rollers 14 and 14 pivotally supported at the lower portions of the two arms 12 and 12, respectively, and the support frame 8 are mounted at a position directly below the two guide rollers 14 and 14. Upward cylinder 15 and the cylinder And a wedge 16 that is fitted to the tip of 15 piston rods and is positioned between the two guide rollers 14, 14. The individual elastic rollers 1 and 1 are designed to approach and separate from each other with the support shafts 9 and 9 as fulcrums.
[0017]
Further, as shown in FIG. 3, the rotating means 3 includes gears 17 fitted to the left ends of the rotary shafts 10 and 10, and pinions 18 fitted to the left ends of the support shafts 9 and 9, respectively. , A chain wheel 19 fitted to the left end of one of the support shafts 9, 9, a motor 20 with a speed reducer separately fixed, and a shaft 20 attached to the output shaft of the motor 20 with a speed reducer The chain wheel 21 and the endless roller chain 22 spanned between the two chain wheels 19 and 21 are configured. The pinions 18 and 18 mesh with each other, and the two elastic rollers 1 and 1 are rotated inward as shown in FIG. .
[0018]
Further, as shown in FIG. 1, the reciprocating means 5 and 6 are vertically arranged with the approaching / separating means 2 in between, and each of the reciprocating means 5 and 6 is pivotally attached. A pair of rollers 23 and 23 for guiding the wire W downward while sandwiching the wire W, a swing frame 24 supported so as to be swingable left and right, and pivotally mounted on the pair of rollers 23 and 23, a link 25 and a rotating plate 26, and a swinging means 26 that swings the swing frame 24 and the pair of rollers 23 and 23 in the left-right direction by a crank motion caused by the rotation of the rotating plate 26.
[0019]
As shown in FIG. 2, the two elastic rollers 1 and 1 are respectively provided with humidifying means 27 and 27 for humidifying them. In addition, as shown in FIG. 3, the bottom of the box-like support frame 8 communicates with a suction means (not shown) to collect and collect the abrasive collected in the support frame 8 (not shown). The suction tube 28 is connected.
[0020]
Next, a procedure for surface processing of the wire W as a long object using the apparatus configured as described above will be described. First, the wire W is sequentially passed between the pair of rollers 23 and 23 in the upper reciprocating means 5, between the two elastic rollers 1 and 1, and between the pair of rollers 23 and 23 in the lower reciprocating means 6. The upper and lower reciprocating means 5 and 6 are supported by two pairs of rollers 23 and 23, respectively, and then the wire W is pulled downward by the upper and lower pulling means (not shown) and the upper and lower reciprocating means are reciprocated. The wire W is reciprocated in the width direction of the elastic rollers 1 and 1 by the swinging means 26 and 26 of the moving means 5 and 6. In addition, by causing the wire W to reciprocate in the width direction of the elastic rollers 1 and 1, local wear on the peripheral surface of the elastic rollers 1 and 1 can be suppressed.
[0021]
Under this state, as the wedge 16 is raised by the extension operation of the cylinder 15, the two elastic rollers 1, 1 approach each other with the support shafts 9, 9 as fulcrums, and as shown in FIG. The wire W is clamped by the roller 1.1 with a required force, and then the motor 20 with a speed reducer of the rotating means 3 is driven to make the peripheral speed of the elastic rollers 1.1 faster than the moving speed of the wire W. Alternatively, the elastic rollers 1 and 1 are rotated in the direction of the arrow so as to become slow, and the granular abrasives S and S are blown from the nozzles 4 and 4 between the elastic rollers 1 and 1.
[0022]
As a result, the elastic rollers 1 and 1 are deformed at their peripheral edges so as to adapt to the shape of the wire W, and accordingly, the elastic rollers 1 and 1 cover the wire W for a relatively long time. In addition, the cleaning material S
S is held in the grooves 7 and 7 of the elastic rollers 1 and 1 for a certain period of time, and further, the polishing rollers S and S adhere to the elastic rollers 1 and 1 by humidification of the elastic rollers 1 and 1 by the humidifying means 27 and 27. As a result, the abrasives S and S are moved relative to the wire W by the elastic rollers 1 and 1, and the surface of the wire W is rubbed and processed. Then, the abrasive S · S collected in the support frame 8 after being blown from the nozzles 4 and 4 is sucked and collected by the suction pipe 28.
[0023]
In the above embodiment, there are two opposing pressing bodies 16, 16, but three or more may be used depending on the cross-sectional dimension of the long object W.
[0024]
【The invention's effect】
As is clear from the above description, the present invention is a method of surface processing a long object, the step of sandwiching the long object with a force of a required size by two or more humidified elastic rollers; The long object is moved so as to reciprocate in the width direction of the elastic roller, and the peripheral speed of the elastic roller is set to be slower than the moving speed of the long object. Rotating the elastic roller in the same direction or in the opposite direction, and inserting a granular hard abrasive material between the elastic rollers. Since the surface of the long object is moved relative to the object by rubbing the long object, there is no environmental problem, and the mechanical properties of the long object are not deteriorated. It is possible to accurately surface long objects. Excellent practical effects such as
[0025]
In addition, depending on the material, surface hardness, cross-sectional shape, and processing purpose of the long object, the material, shape, particle size, etc. of the abrasive are selected, and the magnitude of the force for holding the long object and the rotational speed of the elastic roller, etc. By appropriately selecting the size, the amount of grinding on the surface of long objects can be varied, and furthermore, it is possible to make machining marks, so when drawing or rolling in the subsequent process, compared with pickling treatment Thus, the wet or dry lubricant can be efficiently guided to the processing tool portion. In addition, the processing streaks produced by the present invention are also suitable as a surface treatment for chemical conversion coatings and paints, and can significantly reduce the size of the apparatus as compared with pickling or other wet cleaning methods. Therefore, it is possible to inline the surface processing apparatus.
[Brief description of the drawings]
FIG. 1 is a partial front view showing an embodiment of the present invention.
FIG. 2 is a right side view of the main part of FIG.
3 is a cross-sectional view taken along the line AA in FIG.
FIG. 4 is a drawing of an elastic roller as a main member in an embodiment of the present invention, in which A is a front view and B is a right side view.
FIG. 5 is an explanatory diagram for explaining the operation when the surface of the wire is processed in FIG. 2;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Elastic roller 2 Approaching / separating means 3 Rotating means 4 Nozzle 5; 6 Reciprocating means

Claims (2)

A method of surface processing a long object,
Sandwiching the long object with a force of a required size by two or more humidified elastic rollers;
Identical to the direction of movement of the long product to a peripheral speed of the elastic roller is moved by the long object so as to reciprocate in the width direction of the elastic roller so as to be slower than the moving speed of the long product Rotating the elastic roller in a direction or opposite direction;
A step of introducing a hard abrasive material in the form of a granular material between the elastic rollers;
Including
Thereby, the said grinding material is moved relatively with respect to the said long object, the long object is rubbed, and the said long object is surface-processed, The surface processing method characterized by the above-mentioned. An apparatus for processing a long object,
2 provided with a plurality of polishing material holding grooves which are capable of sandwiching the long object facing each other and which can rotate in the moving direction of the long object or in the opposite direction and which extend in the same direction as the rotation axis. More than one elastic roller;
Approaching / separating means for approaching and separating these two or more elastic rollers from each other;
A rotating means for rotating the elastic roller;
Abrasive material charging means for charging a granular material between the elastic rollers,
Reciprocating means for moving the long object so as to reciprocate in the width direction of the elastic roller;
Humidifying means attached to the elastic roller to humidify the elastic roller;
An apparatus for processing a surface of a long object.

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