JP3871199B2 - 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 according to the present invention is a method for surface processing a long object, and a pair of shafts are supported in parallel with each other with their rotation axes parallel to each other. A step of passing a long object between the two or more pairs of elastic rollers arranged with two or more pairs of elastic rollers arranged at an appropriate interval, and the long object is required by the two or more pairs of elastic rollers. The step of clamping with a force of a magnitude, and the same direction as the moving direction of the long object by moving the long object and making the peripheral speed of the elastic roller faster or slower than the moving speed of the long object Alternatively, the step of rotating the elastic roller in the opposite direction, the step of putting a granular abrasive between the elastic rollers, and the liquid for holding the abrasive on the outer peripheral surface of the elastic roller are elastic. Discharge from the outer peripheral surface of the roller Includes a degree, and thereby, characterized in that the abrasive for surface machining of the friction to the long was relatively moved so long product to said elongated 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 pairs of elastic rollers hold a long object is such that the elastic roller holding 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]
Further, 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, the elastic roller And is excellent in removing foreign matter from the surface of a long object.
[0013]
In addition, the elongate object in the present invention refers to a material whose cross-sectional shape is a circle, a substantially circle, a polygon, an irregular shape, or the like, and the material is not limited.
[0014]
In addition, the liquid discharged from the outer peripheral surface of the elastic roller can hold the abrasive on the outer peripheral surface of the elastic roller, and includes water or a volatile material such as alcohol.
[0015]
Furthermore, by changing the number of rotations of the elastic roller, there is an effect of crushing the abrasive material that has become damped by the liquid discharged from the elastic roller. In addition, since the grinding amount changes depending on the rotational speed of the elastic roller, the grinding amount can be finely adjusted.
[0016]
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 has a pair of rotary shafts 1, 1, 2, 2 that extend in the front-rear direction and are supported in parallel with each other to form a pair. Two pairs of elastic rollers 3, 3, 4, 4 that are arranged at an appropriate interval and can hold a long object and can rotate in the moving direction or the opposite direction of the long object, and a pair of elastic rollers 4 sets of approaching / separating means 5 and 5 for approaching / separating 3, 3, 4 and 4 with each other, and rotating means 6 and 6 for rotating the elastic rollers 3, 4, 4 (see FIG. 3), A grinding material feeding means (not shown) for feeding a granular abrasive material between the elastic rollers 3, 3 or 4 and 4 forming a pair, and humidification for humidifying the elastic rollers 3, 3, 4 and 4 And means 7 and 7 (see FIG. 2).
[0017]
As shown in FIG. 2, the approaching / separating means 5 and 5 are respectively provided with bearing members 8, 8, 9, 9 mounted on the rotary shafts 1, 2, 2, and bearing members 8, respectively. · The cylinders 12, 12, 13, 13 that are connected to the 8, 9, 9 via the link mechanisms 10, 10, 11, 11, and the cylinders 12, 12, 13, 13. The rear part is pin-supported on the upper and lower ends of brackets 15 and 15 mounted on the left and right outer surfaces of the box-like support frame 14 so as to be movable up and down, and the support frame 14 is fixedly disposed. Further, the bearing members 8, 8, 9, 9 are connected to each other via link mechanisms 16, 16.
[0018]
Further, as shown in FIG. 3, a gear unit constituting a part of the rotating means 6 and 6 is attached to the rear part of the rotating shafts 1, 2, and 2.・ Gears 17, 17, 18, 18 fitted to 1, 2, 2 respectively, pinions 19, 19 that are positioned between the gears 17, 18, 17, 18, and one pinion on the output shaft 19 is fitted with an electric motor (not shown) (not shown), the pinions 19 and 19 are meshed, and the elastic rollers 3, 3, 4 and 4 are driven in a predetermined direction by driving the electric motor. Rotate to.
[0019]
As shown in FIG. 3, the humidifying means 7, 7 attached to the support frame 14 are connected to the rear ends of the rotary shafts 1, 2, 2. A large number of pores respectively formed through the elastic rollers 3, 3, 4, and 4 and the rotary shafts 1, 1, 2, and 2 are formed at one end and communicated with the pores at the other end via a conduit 20. A through hole (not shown) connected to the liquid supply source 21 is formed.
[0020]
Next, a procedure for surface processing the wire W as a long object using the apparatus configured as described above will be described. The wire W is sequentially passed between the two pairs of elastic rollers 3, 3, 4, and 4, and the cylinders 12, 12, 13, and 13 are extended to move the four elastic rollers 3, 3, 4, and 4 to each other. The wire W is clamped by the elastic rollers 3, 3, 4, and 4 with a force having a required size. Next, the motor with a speed reducer of the rotating means 6, 6 is driven so that the peripheral speed of the elastic rollers 3, 4, 4 is faster or slower than the moving speed of the wire W, and the elastic rollers 3, 3, 4 are moved. 4 is rotated through the pinions 19 and 19 and the gears 17, 17, 18, and 18, and between the elastic rollers 3, 3, 4, and 4, the abrasive is put into a granular form from an abrasive charging means (not shown). Inject abrasive.
[0021]
Then, the elastic rollers 3, 3, 4, and 4 are deformed in the portions that contact each other in the peripheral edge and adapt to the shape of the wire W, and accordingly, the elastic rollers 3, 3, 4, and 4 become the wire W. In contrast, the elastic roller 3, 3, 4 or 4 is humidified by the humidifying means 7 or 7 so that the polishing material is securely attached to the elastic roller 3, 3, 4 or 4 As a result, the abrasive is moved relative to the wire W by the elastic rollers 3, 3, 4 and 4, and the wire W is rubbed and surface-treated.
[0022]
In the above embodiment, two pairs of elastic rollers 3, 3, 4, and 4 are provided, but three or more pairs may be provided. In the above embodiment, the elastic rollers 3, 3, 4, and 4 are arranged in the vertical direction. However, the same effect can be obtained by arranging them in the horizontal direction.
[0023]
【The invention's effect】
As is clear from the above description, the present invention is a method for surface processing of a long object, and two or more pairs of elastic rollers that are supported in parallel with each other with their rotation axes parallel to each other are suitably used. A step of passing a long object between the two or more pairs of elastic rollers arranged side by side, and sandwiching the long object with a force of a required size by the two or more pairs of elastic rollers And the elastic roller in the same direction as the moving direction of the long object or in the opposite direction so that the long object is moved and the peripheral speed of the elastic roller is faster or slower than the moving speed of the long object. , A step of introducing a granular abrasive between the elastic rollers, and a liquid for holding the abrasive on the outer peripheral surface of the elastic roller is discharged from the outer peripheral surface of the elastic roller. Process. Since the surface of the long object is processed by moving the abrasive relative to the long object and rubbing the long object, there is no environmental problem and the machine of the long object The present invention has excellent practical effects such as the ability to accurately surface a long object without degrading the mechanical properties.
[0024]
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, it is possible to vary the grinding amount of the surface of long objects, and to add further processing marks,
When drawing or rolling in a subsequent process, wet or dry lubricant can be efficiently guided to the processing tool portion as compared with pickling treatment. 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.
2 is a plan view of FIG. 1. FIG.
3 is a rear view of FIG. 1. FIG.
[Explanation of symbols]
1; 2 Rotating shaft 3; 4 Elastic roller 5 Approaching / separating means 6 Rotating means 7 Humidifying means

Claims (9)

A method of surface processing a long object,
A long object is passed between the two or more pairs of elastic rollers arranged in parallel with each other at an appropriate interval with two or more pairs of elastic rollers that are pivotally supported in parallel with each other with their rotation axes parallel to each other. Process,
Clamping the long object with a force of a required size by the two or more pairs of elastic rollers;
The elastic roller is rotated in the same direction as or opposite to the moving direction of the long object by moving the long object and setting the peripheral speed of the elastic roller to be faster or slower than the moving speed of the long object. Process,
A step of introducing a granular abrasive between the elastic rollers;
Releasing a liquid for holding the abrasive on the outer peripheral surface of the elastic roller from the outer peripheral surface of the elastic roller;
Including
Accordingly, the surface processing method for a long object is characterized in that the abrasive is moved relative to the long object and the long object is rubbed to perform surface processing of the long object. In the surface processing method of the elongate object of Claim 1,
A surface processing method for a long object, wherein the number of rotations of the elastic roller is changed. In the surface processing method of the elongate object of Claim 1,
A surface processing method for a long object, characterized in that the rotational speed of the foremost elastic roller into which the long object is carried is different from the rotational speed of the elastic roller excluding the foremost elastic roller. In the surface processing method of the elongate object of Claim 1 among Claims 1-3,
A method for surface processing of a long object, wherein the abrasive is soft. In the surface processing method of the elongate object of Claim 1 among Claims 1-3,
The grinding material is hard and has a long surface processing method. In the surface processing method of the elongate object of Claim 1 among Claims 1-3,
The surface processing method for a long object, wherein the abrasive is a mixture of a soft material and a hard material. In the surface processing method of the elongate object of 1 among Claims 1-6,
The grinding material has a particle size of 0.02 to 2.50 mm. In the surface processing method of the elongate object of 1 among Claims 1-7,
The surface processing method for a long object, wherein the liquid discharged from the outer peripheral surface of the elastic roller is water or volatile. An apparatus for processing a long object,
The rotating shafts are parallel to each other and are pivotally supported opposite to each other to form a pair, and each pair is arranged at an appropriate interval so that the long object can be sandwiched and the moving direction of the long object is opposite or opposite. Two or more pairs of elastic rollers rotatable in a direction;
An approaching / separating means for approaching / separating a pair of elastic rollers;
A rotating means for rotating the elastic roller;
Abrasive material charging means for charging a granular material between the elastic rollers forming a pair,
Humidifying means for humidifying the elastic roller;
Comprising
The humidifying means is composed of a large number of pores formed through the elastic roller and a through-hole formed on the rotation shaft of the elastic roller, one end communicating with the pore and the other end connected to a liquid supply source. surface machining apparatus of the elongated article, characterized in that the.

Images