JP3977111B2 - Method and apparatus for manufacturing helical wire - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a method and an apparatus for efficiently producing a helical wire having a desired pitch and a helical radius using a roller die.
[0002]
[Prior art]
Conventionally, steel wires used for civil engineering structures, automobile tire reinforcements, and the like are used in a structure in which a plurality of linear wires are bundled.
One of the inventors of the present invention pays attention to the toughness and metabolic function of a biological tissue as disclosed in Japanese Patent Application Laid-Open No. 8-291586 (Patent No. 3249030), and artificially disposes the collagen fibers constituting the biological tissue. A helical wire was invented that provides a composition that uses a helical body to achieve high toughness and perpetuate life while reducing size and weight.
[0003]
[Problems to be solved by the invention]
In the above-described prior art, the form of the spiral wire itself and the assembly and fixing of it to form components such as pillars and walls are explained. Is not disclosed. In general, as a method of manufacturing such a helical wire, it is conceivable to use a half die having a spiral hole. However, in the case of a thin wire (≦ φ2 mm), there is a limit to processing accuracy. Therefore, the die is easily seized, and there is a limit in productivity and cost. For this reason, the fact is that there is a strong demand for the establishment of an efficient and feasible method for producing a helical wire.
[0004]
The present invention has been made in view of such a situation, and a manufacturing method capable of freely obtaining a helical wire having an arbitrary pitch in the longitudinal direction of the wire and a spiral radius in a plane perpendicular thereto, and the method thereof It is an object of the present invention to provide a processing apparatus having high efficiency and high controllability that can effectively implement the above.
[0005]
[Means for solving problems]
The gist of the present invention for solving the above problems is as follows.
(1) A pusher is applied in the pass line direction to a roller die formed by disposing two or more grooved processing rolls that are not driven or driven to sandwich the wire, and the wire is pushed into a cylindrical shape. Guided in the direction of the pass line with the guide, and periodically changes the indentation speed of the wire and the relative position (offset) of the wire and the die in the cross section perpendicular to the pass line in the two-dimensional direction (x-axis direction, y-axis direction). A helical wire having an arbitrary pitch and helical radius by freely controlling the distribution of the offset amount in the x-axis and y-axis directions along the pass line direction by adjusting the speed of the wire. Manufacturing method.
(2) The wire rod is bitten in the pass line direction with respect to the two or more grooved processing rolls for driving to hold the wire rod, and the wire rod is guided in the pass line direction by the cylindrical guide, and the biting speed of the wire rod And the x-axis of the wire by adjusting the periodically changing speed in the two-dimensional direction (x-axis direction, y-axis direction) of the relative position (offset) of the wire and the roll in the cross section perpendicular to the pass line. A method of manufacturing a helical wire, characterized in that a helical wire having an arbitrary pitch and helical radius is obtained by freely controlling the distribution of the offset amount in the y-axis direction over the pass line direction.
(3) The former stage provided with two or more non-driven or driven grooved processing rolls for sandwiching the wire rod, and the latter stage 2 provided with a hole die arranged in the vicinity of the preceding stage or a roller die composed of a plurality of rolls. consist stage, upstream and downstream of each path line is the manufacturing method for the al shear wire using a die portion having an angle to each other, the tubular guide to guide the pass line direction together with the push the wire in front pass line direction The wire rod is adjusted by adjusting the indentation speed, the front-stage rotation speed, and the angle by feeding the front-stage die holding the wire rod with the grooved processing roll while rotating the front-stage die in a plane perpendicular to the front-stage pass line. A helical wire having an arbitrary pitch and helical radius is obtained by freely controlling the distribution of the offset amount in the x-axis and y-axis directions along the pass line direction. Preparation method for one-wire.
(4) A roller die formed by disposing two or more grooved processing rolls that are not driven or driven to sandwich the wire, and a material push for pushing the wire in the pass line direction provided on the entrance side of the roller die An apparatus, a cylindrical guide that guides the wire in the pass line direction, and a relative position (offset) between the wire and the die in a cross section that is attached to the roller die and is perpendicular to the pass line. (y-axis direction) with a mechanism that periodically changes, and by adjusting the pushing speed and the offset direction speed (x-axis, y-axis speed), the offset amount of the wire in the x-axis and y-axis directions An apparatus for producing a helical wire, characterized in that a helical wire having an arbitrary pitch and helical radius is obtained by freely controlling the distribution along the pass line direction.
(5) Two or more grooved processing rolls for driving to sandwich the wire, a cylindrical guide for guiding the wire caught in the processing roll in the pass line direction, the processing roll or the guide A roll of wire rod having a mechanism attached to the housing and periodically changing the relative position (offset) of the wire rod and roll in a two-dimensional direction (x-axis direction, y-axis direction) within a cross section perpendicular to the pass line By adjusting the biting speed and the offset direction speed (speed in the x-axis and y-axis directions), the distribution of the offset amount of the wire in the x-axis and y-axis directions over the pass line direction can be freely controlled to any pitch And a helical wire manufacturing apparatus characterized by obtaining a helical wire having a spiral radius.
(6) A rear stage 2 provided with a front die provided with two or more grooved machining rolls that are not driven or driven to sandwich the wire, and a roller die composed of a plurality of rolls arranged in the vicinity of the front stage. Each of the first and second pass lines includes a die portion having an angle with each other, a material pushing device for pushing the wire in the front pass line direction provided on the entry side of the previous step, the material pushing device and the previous step, A cylindrical guide that guides the wire rod in the pass line direction and a mechanism that rotates the front stage in a plane perpendicular to the front stage pass line, and adjusts the pushing speed, the front stage rotational speed, and the angle. By doing so, it is possible to freely control the distribution of the offset amount in the x-axis and y-axis directions over the pass line direction to obtain a helical wire having an arbitrary pitch and helical radius. Manufacturing equipment of the line wire.
(7) the work roll or the die unit, two, three or characterized in that it is a four roll (4) to apparatus for manufacturing a spiral wire according to any one of (6) .
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described in detail with reference to the drawings. First, an apparatus for manufacturing and manufacturing a helical wire will be described.
FIG. 1 is a schematic view showing an example of a processing apparatus according to the present invention. The illustrated apparatus basically includes a roller die 3 having two grooved processing rolls 2 sandwiching a metal wire 1 to be processed, and a wire pass line (z It is comprised from the pushing-in apparatus 6 which consists of the two horizontal rolls 4 and the two reed rolls 5 which were arrange | positioned along the axial direction. The processing roll 2 is driven by a motor 7, and the horizontal roll 4 of the pushing device 6 is also driven by a motor 8, but the saddle roll 5 can also be driven as necessary.
[0007]
Although the processing roll 2 is not illustrated, the entire processing roll 2 including the bearing device, the drive unit, the detection unit, and the like is actually held and accommodated by a housing 9 (shown schematically by a dashed line in the drawing). For convenience, the roller die 3 includes the housing 9. Similarly, the horizontal roll 4 and the eaves roll 5 are also held and accommodated by the housing 10 or the like, and in the drawing, the pushing device 6 including the roll and the housing 10 is used. Further, a guide 11 for guiding the wire 1 is installed between the roller die 3 and the pushing device 6.
On the other hand, the housing 9 of the roller die 3 is provided with an x-axis direction displacing motor 12 and a y-axis direction displacing motor 13, and the roller dies 3 are moved in the cross section perpendicular to the pass line by the operation of these motors. It is slidable in the dimension direction (x-axis direction and y-axis direction).
[0008]
In actual operation, the wire rod 1 having a desired diameter is fed from the entry side of the pushing device 6 to be bitten by the horizontal roll 4, fed to the roller die 3 through the scissors roll 5 and the guide 11, and then fed to the processing roll 2. Let them bite. The wire 1 fed in the pass line direction at a constant speed is forcibly perpendicular to the pass line by the x-axis displacement motor 12 and the y-axis displacement motor 13 while being caught in the processing roll 2 at the position of the roller die 3. Displacement in the in-plane is applied, and the roller die 3 is processed into a spiral shape and sent out.
In the example shown in the figure, the processing roll 2 is driven by a motor 7, but this is a driving roll with ease of material biting, so that a slight rolling force is applied to the wire rod and rolled to the final diameter with high accuracy. It is aimed to do. Needless to say, the processing roll 2 may be a non-driving type if necessary.
[0009]
Thus, in the present invention, the z-axis direction wire rod pushing device 6 and the xy-axis displaceable roller die 3 allow the z-axis direction feed and the x-axis / y-axis direction to be transferred to the roller die processing roll 2. Since a periodic displacement can be imparted to the helix, by controlling the z-axis feed speed (push-in speed) and the x-axis and y-axis displacement speeds, the helix has an arbitrary pitch and offset amount (spiral radius). It becomes possible to manufacture a wire continuously.
Therefore, the desired pitch and spiral radius can be obtained by inputting the indentation speed, the x-axis / y-axis displacement and speed calculated in advance based on the target pitch and spiral radius into the drive unit of the indenter and roller die. Thus, a helical wire having a length can be manufactured continuously. If necessary, the position of the roller die, the pitch of the processed wire and the offset amount are checked each time using a detection device, and each drive unit is based on the data. If the feedback control is performed, a helical wire can be obtained with high accuracy.
[0010]
When actually controlling the manufacturing apparatus according to the present invention, for example, the following specific elements are required. For the processing roller 2, assuming that the amplitude of the x-axis and y-axis direction displacement given by the motor is the same value 0.5a , the angular velocity is the same value ω, and the time is t, the phase and speed in the xy-axis direction are as follows: It is expressed in
x-axis direction displacement u _x = 0.5 a · cos (ωt)
y-axis displacement u _y = 0.5 a · sin (ωt)
speed of the x-axis direction _{v x = - 0.5 aω · sin} (ωt)
Speed in the y-axis direction v _y = 0.5 aω · cos (ωt)
If the machining speed v _z = b in the _z -axis direction, the roller 2 performs a circular motion with a period T = 2π / ω in the x-axis and y-axis planes, and the pitch p is
p = v _z · T = b · 2π / ω
The difference h between the maximum height of the mountain and the minimum height of the valley is
h = a + d (d: wire rod diameter)
become.
[0011]
Next, FIG. 2 shows another example of the processing apparatus according to the present invention, which is of a type in which the pushing device shown in FIG. 1 is omitted. The apparatus shown in FIG. 2 includes a roller die 3 in which two or more processing rolls 2 for driving are arranged, a guide 11 provided on the entrance side of the roller die 3, and a housing 14 that holds the guide 11. Composed. In this example, the roller die 3 is not displaced in the two-dimensional direction (x-axis direction, y-axis direction), and the housing 14 side is displaced in the two-dimensional direction.
For this reason, the housing 14 has a mechanism for periodically changing the relative position (offset) between the wire and the roll in a two-dimensional direction (x-axis direction, y-axis direction) within a cross section perpendicular to the pass line, that is, as illustrated. An x-axis direction displacement motor 12 and a y-axis direction displacement motor 13 are attached.
[0012]
Also by the mechanism shown in FIG. 2, the path of the offset amount of the wire in the x-axis and y-axis directions is adjusted by adjusting the biting speed of the wire to the roll 2 and the offset direction speed (speed in the x-axis and y-axis directions). A spiral wire with an arbitrary pitch and spiral radius can be obtained in the same manner as in FIG. 1 by freely controlling the distribution over the line direction. In this case, the housing 14 is displaced in a two-dimensional direction when the wire rods in the processing roll 2. However, since the processing roll 2 is driven, the wire rod processed in advance in a spiral shape is the roll. 2 is pushed out.
[0013]
Next, in FIG. 3, the die part is composed of two stages, a front stage and a rear stage, the front stage is a roller die 3 having two or more rolls (three rolls in the figure) and the rear stage is close to the front stage. The front-side pass line is the same as the pushing device 6 and the entry-side guide 11 and the rear-side pass line forms an angle θ with the front-side pass line. Further, the housing 9 of the roller die 3 can be rotated by a motor 12 in a plane perpendicular to the previous-stage pass line.
For this reason, the wire rod 1 that is inserted into the processing roll 2 and the hole die 2 ′ through the pushing device 6 and the entry-side guide 11 is rotated by the motor 12 and the processing roll 2 and the hole die. From 2 ', it is processed into a spiral shape and extruded. In some cases, the hole die may be a roll type of two or more rolls. Also with the apparatus shown in FIG. 3, a wire rod having an arbitrary spiral radius and pitch can be obtained by appropriately adjusting the pushing speed, the rotational speed of the roller die 3 and the angle θ.
[0014]
In the present invention, in order to reliably hold the wire and give the required displacement, a roller die system is used to hold the wire, but the processing roll 2 constituting this die is of a two-roll type. Is illustrated. However, the present invention is not limited to this, and the processing roll 2 is practically used in three rolls (b) in addition to the two rolls (a) as shown in FIGS. 4 (a), (b) and (c). ) 4 rolls (c) can be employed. FIG. 4 shows the material and roll hole shape in each type. Which type should be selected may be appropriately determined in consideration of the material, size, application, etc. of the wire to be processed.
The meaning of each symbol in FIG. 4 is as follows.
D: Roll diameter r _o: Material radius r _g: hole-shaped radial Y _o: Distances from wire center to roll groove bottom .DELTA.B: wide rising amount [0015]
Next, FIG. 5 is a perspective view showing an example of a helical wire obtained by the present invention, and FIG. 6 is a plan view showing a helical state of the helical wire.
The difference between the maximum peak height and the minimum valley height of the helical wire 1 shown in FIG. 5 and FIG. 6 is a spiral diameter approximately twice the diameter of the wire, and the peak 1a and the valley 1b are substantially opposite to each other. Thus, it is formed by spiral winding at a predetermined pitch p and an amplitude of 0.5 a so that the valley portion substantially coincides with the helical center c or is located outside the helical center. In addition, although FIG. 5 has shown the helical winding material whose spiral winding direction is right-handed, the spiral-winding direction is not limited to this, and may be left-handed.
[0016]
In the illustrated embodiment, the processing drive 2 rolls and the pressing device have 2 horizontal rolls + 2 rolls. However, the present invention is not limited to this, and other modes, for example, the processing rolls are not driven. If the processing roll is 3 rolls or 4 rolls, the push roll of the push device is a set of horizontal rolls or saddle rolls, the push roll is 3 rolls or 4 rolls, the roll of cylinder etc. In the case of using other than the above, the target helical wire can be manufactured in the same manner.
[0017]
In the present invention, the motors used for driving the rolls themselves and the displacement of the roller dies are not special ones, but normal ones may be used. However, a motor for displacing the roller dies 3 in the xy-axis direction is set. It is preferable to use a servo motor that is widely used as a control motor that can perform the performed operation quickly and accurately. Of course, other mechanical means such as a cylinder mechanism may be used as long as the same operation can be performed.
[0018]
【Example】
[Example 1]
A description will be given based on a processing example of a spiral wire using a processing device having a two-roll roller die and a pressing device in FIG.
[Conditions]
- workpiece: diameter φ2mm steel wire rod and processing rolls of: _{undriven, D = 150mm, r g =} 3.6mm, Yo = 0.995mm
ΔB = 0.002mm
-Machining speed (z-axis direction pushing speed): 10m / min
・ Roller die x and y axis speed, amplitude: 5m / min, 2mm
-Pushing device: As a result of carrying out under the conditions of 2 horizontal rolls + 2 rolls or more, a helical wire having a pitch of 25 mm and a peak-to-valley length of 4 mm could be continuously produced without any trouble.
[0019]
[Example 2]
Description will be made based on a processing example of a spiral wire using the two-roll type rolling mill of FIG.
[Conditions]
- workpiece: diameter φ2mm steel wire rod and processing rolls of: _{driving, D = 150mm, r g =} 3.6mm, Yo = 0.995mm
ΔB = 0.002mm
-Machining speed (z-axis direction pushing speed): 10m / min
・ X and Y axis speed and amplitude of guide (housing): 5m / min, 2mm
-Pushing device: As a result of carrying out under the above conditions, a helical wire having a pitch of 25 mm and a crest-valley length of 4 mm could be continuously produced without any trouble.
[0020]
[Example 3]
A description will be given based on a processing example of a spiral wire using a processing apparatus of a type in which the processing roll of FIG.
[Conditions]
・ Work material: Steel wire with a diameter of 2mm ・ Roll for processing: No drive ・ Rotating speed of housing: 400rpm
-Angle with respect to the front stage of the rear stage pass line: 30 degrees, front stage: 3 rolls, D = 26 mm, r _g = 5.5 mm, Yo = 0.995 mm, ΔB = 0.002 mm
Subsequent stage: hole die, hole diameter: φ2.1mm
-Machining speed (z-axis direction pushing speed): 10m / min
-Pushing device: As a result of carrying out under the conditions of horizontal driving 2 rolls × 2 steps or more, a helical wire having a pitch of 25 mm and a peak-to-valley length of 4 mm could be continuously produced without any trouble.
[0021]
【The invention's effect】
By the method of the present invention described above, a helical wire capable of setting the difference between the pitch and the maximum value of the helix peak portion and the minimum value of the trough portion to an arbitrary value can be manufactured with high efficiency. In addition, the manufacturing apparatus of the present invention has an advantage that the above method can be effectively carried out and that conventional roller dies can be utilized in terms of equipment. Therefore, since the present invention can effectively supply a helical wire as a steel wire used for a structure for civil engineering and construction, an automobile tire, and the like, its industrial advantage is very large.
[Brief description of the drawings]
FIG. 1 is a diagram showing an embodiment of a helical wire processing apparatus according to the present invention.
FIG. 2 is a view showing another embodiment of the helical wire processing apparatus of the present invention.
FIG. 3 is a view showing still another embodiment of the helical wire processing apparatus of the present invention.
4 (a), (b), and (c) are diagrams showing 2 rolls, 3 rolls, and 4 rolls for processing, respectively.
FIG. 5 is a schematic perspective view showing an example of a helical wire obtained by the present invention.
6 is a plan view showing a helical state of the helical wire of FIG. 5. FIG.
[Explanation of symbols]
1: Wire 1a: Mountain 1b: Valley 2: Processing roll 2 ': Hole die 3: Roller die 4: Horizontal roll 5: Saddle roll 6: Pushing device 7: Working roll drive motor 8: Pushing device driving motor 9 : Housing (roller die side)
10: housing (pushing device side) 11: guide 12: machining roll x-axis displacement motor 13: machining roll y-axis displacement motor 14: guide housing

Claims (7)

Together by applying a pushing force pushing the wire into the wire Shi pair roller die formed by arranging two or more grooved processing rolls undriven or driven for clamping the path Surain direction, the該線material in the tubular guide Guided in the direction of the pass line, the speed at which the wire is pushed in, and the speed that periodically changes in the two-dimensional direction (x-axis direction, y-axis direction) of the relative position (offset) between the wire and the die within the cross section perpendicular to the pass line. To adjust the distribution of the offset amount of the wire in the x-axis and y-axis directions along the pass line direction to obtain a helical wire with an arbitrary pitch and helical radius. Method. With not bitten the wire to Shi pair into two or more grooved working roll drive for holding the wire path Surain direction to guide the pass line direction該線material in the tubular guide, the biting rate of the wire, By adjusting the periodically changing speed in the two-dimensional direction (x-axis direction, y-axis direction) of the relative position (offset) of the wire and the roll in the cross section perpendicular to the pass line, the x-axis, y of the wire A method of manufacturing a helical wire, characterized in that a helical wire having an arbitrary pitch and helical radius is obtained by freely controlling the distribution of the offset amount in the axial direction along the pass line direction. It consists of two stages, a front stage provided with two or more grooved machining rolls that are not driven or driven to sandwich the wire, and a rear stage provided with a hole die or a roller die composed of a plurality of rolls. , upstream and downstream of each path line is the manufacturing method for the al shear wire using a die portion having an angle to each other, in cylindrical guide with pushing the wire in front pass line direction guiding the pass line direction, said grooves By feeding the latter stage die while rotating the former stage with the wire rod sandwiched by the attached processing roll in a plane perpendicular to the former stage pass line, and adjusting the pushing speed, the former stage rotational speed and the angle, the x axis of the wire rod , Characterized by obtaining a helical wire with an arbitrary pitch and helical radius by freely controlling the distribution of the offset amount in the y-axis direction over the pass line direction Method of manufacturing a wood. A roller die formed by arranging two or more grooved processing rolls that are not driven or driven to sandwich the wire, and a material pushing device for pushing the wire in the pass line direction provided on the entry side of the roller die; A cylindrical guide that guides the wire in the pass line direction, and a relative position (offset) between the wire and the die in a cross section that is attached to the roller die and is perpendicular to the pass line, in a two-dimensional direction (x-axis direction, y-axis direction) ) And periodically changing the indentation speed and the offset direction speed (x-axis and y-axis speed) to adjust the offset amount of the wire in the x-axis and y-axis directions. An apparatus for producing a helical wire, characterized in that a helical wire having an arbitrary pitch and a helical radius is obtained by freely controlling the distribution over the wire. Attached two and more grooved working roll drive for holding the wire, the tubular guide and a roll or the guide housing for the processing for guiding the wire bitten into the working roll pass line direction And a mechanism for periodically changing the relative position (offset) between the wire and the roll in a two-dimensional direction (x-axis direction, y-axis direction) within a cross section perpendicular to the pass line. By adjusting the velocity and the velocity in the offset direction (velocities in the x-axis and y-axis directions), the distribution of the offset amount of the wire in the x-axis and y-axis directions along the pass line direction can be freely controlled, and any pitch and spiral radius An apparatus for producing a helical wire, characterized by obtaining a helical wire. It consists of two stages, a front stage provided with two or more grooved machining rolls that are not driven or driven to sandwich the wire, and a rear stage provided with a hole die or a roller die composed of a plurality of rolls. Each of the front and rear pass lines has a die portion having an angle with each other, a material pushing device for pushing the wire in the front pass line direction provided on the entrance side of the front row, and between the material pushing device and the front row. provided the a cylindrical guide for guiding the wire in the pass line direction, and a mechanism for rotating the pre-stage in a plane perpendicular to the front pass line, pushing speed, by adjusting the front rotational speed and the angle Spiral characterized by obtaining a helical wire with an arbitrary pitch and helical radius by freely controlling the distribution of the offset amount in the x-axis and y-axis directions along the pass line direction. Wood manufacturing equipment. The said processing roll or the said die | dye part is 2, 3, or 4 rolls, The manufacturing apparatus of the helical wire of any one of Claims 4-6 characterized by the above-mentioned.

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