JPH0236934A - Correction of tire grooving and its apparatus - Google Patents

Abstract

PURPOSE:To enable a cutter to be controlled at an optimum position by a method wherein side run out and vertical deflection of a tire are detected, and a correction transfer amount corresponding to a detected value is made to follow a reference transfer amount. CONSTITUTION:A correction program for correction of a transfer amount of a cutter based on vertical deflection and side run out of a tire is stored in a memory of a correcting motion operation part. When vertical deflection is caused by a strain of a tread surface of the tire 3, the deflection is detected with a vertical deflection detector 14, and a transfer amount correcting mechanism part of an elevator 7 is driven according to a correction value from the correction program based on this detected value. The elevator 7 is raised in a Z axial direction, a cutter 10 is raised to correct a cutter position, and a depth is kept constant. A reference transfer amount is controlled by a value always established by a reference program, and a correction transfer amount by a deflection detection value is preferably corrected by following another correction program. Therefore, structure of the program is simple and the title apparatus can be miniaturized.

Description

[Detailed Description of the Invention] "Industrial Application Field" The present invention provides a tire grouping device in which a tire grouping device is configured to maintain uniformity on the left and right sides of the tire radial center (tire equator) according to the vertical and lateral vibrations of the tire. The depth, groove width, and groove position of the matching grooves were different, leading to problems with the quality of the product, such as instability and reduced strength.

For this reason, as shown in Japanese Patent Application Laid-Open No. 62-74635, for example, a non-contact detection means for detecting the shape of the tread surface is provided, and the position of the cutter is controlled based on the detection result. A method has been proposed in which the amount of rubber removed from the tire is constant.

1. Problems to be Solved by the Present Invention] However, in such a tire grooving device, it is necessary to provide a large-scale frame in order to provide a detection means, and it is necessary to keep only the depth direction position of the cutter constant during cutting. Because of this, it is not possible to maintain a constant groove depth over the entire circumference of the groove, and in order to keep the amount of rubber removed constant, an image detector is used to measure the amount of tire that occupies the field of view of the detector. The present invention relates to a correction method and apparatus for calculating the position of the cutter when cutting from the area and controlling the position of the cutter for each groove to be cut.

[Prior Art] A device for grooving the tread surface of a new or retreaded tire has a tire support shaft that vertically supports the tire, a traverse direction that is at least parallel to the tire support axis, and a perpendicular direction that is perpendicular to the tire support axis. Although it is equipped with a movable cutter device, the tire itself is generally not a perfect circle, and due to uneven tread tire support, the tread surface from the center of the tire support shaft may run out in the radial direction, or the tire may When lateral vibration occurs on the side of the tire due to distortion of the tire itself or uneven tire support, the amount of movement is controlled according to a predetermined tread pattern shape using a set program while rotating the tire. Even when grooving is performed with a cutter, the depth and width of the grooves, or the position of the grooves relative to the center of the tread, differs from tire to tire for tires of the same size and specifications, and when grooving multiple grooves on one tire, Even if you try to keep the trem amount constant, if it intersects with a part where another groove has already been formed, or if the radius changes on the left and right sides of the tire's equatorial plane, calculate it from the area. Not only is it extremely difficult to do so, but the cutter cannot be moved in response to the tire's lateral runout, and the tire's vertical runout and
There are problems such as inability to follow lateral vibration and inability to maintain tire tread depth, groove width, and Wlt position at desired constant values.

[Means for Solving the Problems] The present invention includes a transverse drive shaft of a transverse table that moves the cutter in the radial direction of the tire or parallel thereto, and a transverse drive shaft of a transverse table that moves the cutter in the width direction of the tire. During tire grooving, which uses multiple operating axes to control the movement of the cutter and process the desired pattern of grooves on the tire surface, the radial vertical runout and width direction of the tire are measured before crew pinking or while grooving. A correction program is created to detect both or one of the lateral runouts as necessary, move both or one of the orthogonal table and the transverse table based on the detected values, groove each drive shaft according to the reference program, and The amount of movement of the orthogonal table by the orthogonal drive axis and the amount of movement of the traverse table by the transverse drive axis according to the standard program are superimposed on the respective amounts of movement by the correction program, and for this purpose Orthogonal drive that rotates according to a standard program and moves the orthogonal platform in the radial direction of the tire or parallel to it, by installing both or only one of the detectors to detect the longitudinal runout in the radial direction and the lateral runout in the width direction of the tire. Parallel to the traversing drive shaft that moves the shaft and the traversing table in the tire width direction, both or both or both of the orthogonal correction axis and the traversing correction axis that rotate and move the orthogonal table and the traversing table according to a correction program based on the detected value of the detector. I try to provide only one side.

[Operations] Accordingly, the orthogonal section 5, which is operated in the radial direction of the tire or parallel to the tire radial direction according to the standard program that sets the cutter position with respect to the standard tread surface of the tire, runs on the base 4 along the rail 43 and with the tire support shaft. A traverse table 6 that moves in the parallel Y-axis direction is a traverse drive device for the traverse table 5. As is particularly clear in FIG. A transverse correction shaft 6 consisting of a shaft 62 and a spline shaft rotated by a correction motor 63
4 is provided in parallel with the Y-axis direction parallel to the tire support shaft 21, and an internally threaded body 65 and a support boss 66 made of pole screws are rotatably attached to the frame 2.51 provided on the lower surface of the traversing table 5. This female threaded body 65 is screwed into the threaded portion of the traverse drive shaft 62, and the support boss 66 is inserted into the traverse correction shaft 64 so that it can rotate together with the shaft and move freely in the axial direction. Reference numeral 67 is a drive gear that is integrally fixed to the support boss 66, and 68 is a driven gear that is loosely fitted to the transverse drive shaft 62 and fixed to the female threaded body 65, and is meshed with the drive gear 67. 69 is a support bearing on the base 4.

7 is the tire support shaft 2 along the guide shaft 52 on the traversing table 5.
Vertical and lateral vibrations of the tire are detected prior to grooving or during grooving, respectively, on the standard movement distances of the rectilinear table and moving shaft that move in the Z-axis direction perpendicular to 1, and the transverse drive shaft that moves in the width direction of the tire. The correction movement amounts of the orthogonal correction axis and the transverse Hli positive axis, which are operated by a correction program according to the detected value of the detector, are mechanically superimposed, respectively, and the cutter position is adjusted simultaneously or simultaneously against vertical and lateral vibrations of the tire. Correct each separately.

[Example] This will be explained in detail with reference to the embodiment shown in the figure.

In the grooving device shown in FIGS. 1 and 2,
l is the bed, 2 is the tire support stand installed on the bed l,
A tire 3 is mounted on a tire support shaft 21 and rotated by a motor 22. Reference numeral 4 denotes a base, which allows a rail 41 on the bed 1 to be moved along a guide bar 42 in the X-axis direction perpendicular to the axis of the tire support base 2 by a motor (not shown). In this embodiment, the base 4 does not need to be moved 0° in the X-axis direction as long as the distance between it and the tire support is set to a predetermined value.

Reference numeral 8 designates a orthogonal drive device for the orthogonal table 7, which has the same configuration as the transverse drive device 6, as shown in detail in FIG. An orthogonal drive shaft 82 consisting of a rotating feed screw and an orthogonal correction shaft 84 rotated by a correction motor 83 and constituting a spline shaft are provided in parallel, and a female threaded body 85 and a support boss 86 are provided on the orthogonal table 7 to freely rotate. , the female threaded body 85 is screwed onto the orthogonal drive shaft 82, and the support boss 86 is screwed onto the orthogonal correction shaft 84.
It rotates with the shaft and is inserted so that it can move in the axial direction.

87 is a drive gear that rotates together with the orthogonal correction shaft 84 and is fixed to the support boss 86; 88 is a driven gear that is integrally attached to the orthogonal drive shaft 82 with a loosely fitted female screw body 85;
It meshes with 7.

Reference numeral 71 denotes a rotating arm, which is attached to an arm support shaft 72 that protrudes from the orthogonal table 7 in the X-axis direction, and is rotated around the axial center line 73 of the arm support shaft 72 by a motor (not shown) in the orthogonal table 7 as shown in FIG. is rotated in the direction of arrow A.

Reference numeral 9 denotes a cutter support device installed in a direction perpendicular to the pivot arm 71 toward the axis 73. A cutter support frame 92 is provided on a column 91 supported by the pivot arm 71.
Attach the cutter 10 to the cutter boulder 94 through the attachment 5 through the cutter bolt 94.
is removably attached so that the cutting position P coincides with the axis 73, and the cutter IO is heated by a power supply device (not shown). 11 is a motor that rotates the cutter support device 9 and changes the direction of the cutter by l°; 12
is an actuator that moves the cutter dispensing device up and down in order to align the position of the cutter 10 with the axis 73.

Note that instead of the actuator 12, the position at which the cutter support device 9 is attached to the support column 91 is adjusted, and the cutter cutting position P is adjusted.
may be made to coincide with the axis 73.

Reference numeral 13 denotes a lateral vibration detector which is placed opposite the buttress on the side surface of the tire at an appropriate interval m to detect the lateral vibration of the tire. Adjust to the direction.

6 and 7 show another embodiment of the traverse drive device 6 for driving the traverse table 5. The traverse drive device 6 is rotated by a drive motor 61 installed on the base 4 and constitutes a feed screw. Intermediate support stand 60 supported by shaft 62 and guide rod 601
2, and the intermediate support base 602 is moved by the rotation of the transverse drive shaft 62 via the female threaded portion 603. A correction motor 63 and a traverse correction shaft 64 constituting a feed screw are provided on this intermediate support 602-H, and the female threaded portion 604 of the traverse table 5 supported by the rail 43 is screwed into the traverse drive shaft 64. ing. Note that 605 is a bearing, and the traverse drive shaft 62 and the traverse correction shaft 64 may be arranged interchangeably.

FIG. 8 shows another embodiment of the orthogonal drive device 8.
A female screw body 85 supported by the guide shaft 52 is screwed onto a straight drive shaft 82 that is rotated by a drive motor 81 and constitutes a feed screw, and a feed screw parallel to the straight drive shaft 82 is formed on this female screw body. Orthogonal correction NI+ 84 and correction motor 83
An optical reflective displacement sensor is attached to the displacement sensor, and the detected value is inputted to a control device (not shown) to drive the correction motor 63 of the stacking drive device 6.

Reference numeral 14 denotes a vertical vibration detector for detecting the radial deviation of the tread surface of the tire 3, for example, an optical displacement sensor attached to the rotary arm 7 or the cutter support frame 92, which detects the displacement of the tread surface of the tire 3 toward the tire tread surface. It is designed to project light in the direction of the center of the tire. The detection value of the detector is given to a control device (not shown) to drive the correction motor 83 of the direct drive device 8. FIG. 5 shows an example of a device for installing a vertical runout detector ('3), in which a bracket 141 attached to a rotating arm 71 is provided with a guide rod 142 supported parallel to the tire tread surface. A detector 14 such as an optical reflection type displacement sensor is attached to the tip of a support plate +43 whose position can be slid on the guide rod 142 (
-11J, and when the cutter support device is raised and lowered via the orthogonal table 7 according to the tire support shaft, the support plate is moved along the guide rod 42, and the light emitting direction of the detector 14 is set to the tire. The orthogonal stand 7 is screwed onto the center ball shaft 84.

In the above embodiment, a grooving device is described in which the cutter is installed directly above the tire and moves up and down in the radial direction toward the center of the tire. J: Yes, even when moving up and down in the same direction. It goes without saying that the present invention can also be applied to a device that moves the cutter in a lateral direction perpendicular to the tire support shaft, and in this case, the orthogonal table 7 is configured to move in the X-axis direction.

Note that the motor may be an electric servo motor or a fluid servo motor, and since the correction motor only needs to correct minute positions, it may be operated at low speed and may have a small capacity.

In addition, the vertical runout detector and the lateral runout detector are not limited to optical reflection type displacement sensors, but contact type differential transformers, digital dial gain, etc. can also be used, and the lateral runout detector I3 is located on both sides of the tire. The cutter position may be corrected based on the detected values on both sides.

In addition, if it is necessary to correct only the vertical runout of the tire, the configuration may be configured without the lateral runout detector and the traverse correction axis in advance, and if the correction is to be performed only for the lateral runout of the tire, The vertical shake detector and orthogonal correction axis can be omitted.

(Operation) The operation when performing grooving using the present invention, detecting the vertical runout and lateral runout of the tire, importing and calculating these runout data, and correcting the vertical runout and lateral runout of the cutter is described in the 11th section. This will be explained using the flowchart shown in the figure.

When the operating power is turned on, the origin position of each operating axis is set according to a command from a computer (not shown) according to the grooving pattern.

Attach the tire 3 with patterned grooves to the tire support shaft 21 (:l, lateral runout detector 13 and vertical runout detector 14
are installed facing the side of the tire buttress and the planned grooving position of the tire tread.

In the standard program of the combination coater, the correction motor 83 of the tire swing drive device 8 is driven, and in the embodiment shown in FIG. Rotate the body 85. This rotation causes the female threaded body 85 to move upward along the orthogonal drive shaft 82, and raises the orthogonal table 7 in the Z direction.
The cutter IO is raised to correct the cutter position and keep the depth d constant.

In the orthogonal drive device of the embodiment shown in FIG. 8, the orthogonal correction shaft 84 is rotated by the rotation of the correction motor 83, and the orthogonal table 7 is raised.

Further, as shown in FIG. 10, when the tire 3 has a lateral runout E2 and the tread center line is biased from a to b, the traverse drive device 6 A correction motor 63 is controlled, and in the traverse drive device shown in FIG.
and rotating the female threaded body 65 via the driven gear 68,
The cutting table 5 is moved in the Y-axis direction to correct the cutter position as shown by the dotted line in FIG. The direction of the cutter lO is set according to the cutting direction, and the tire 3 is moved to the first position by the motor 22.
While rotating in the direction of arrow T in the figure, the drive motor 81 of the orthogonal drive device 8 of the orthogonal table 7 is operated, and the orthogonal drive shaft 8
2, the orthogonal table 7 is lowered in the Z-axis direction via the female threaded body 85, and the cutter IO heated by a power supply device (not shown) is made to cut into the tire 3.

When the groove is cut to a predetermined depth d from the reference tread surface F shown by a solid line in FIG. 9 according to the reference program, the drive motor 61 of the traverse drive device 6 is driven according to the reference program according to the predetermined groove shape, Rotation of the traversing drive shaft 62 moves the traversing table 5 in the Y-axis direction to control the lateral movement of the cutter 10, thereby performing required grooving.

During this time, if the tread surface of the tire 3 has a vertical runout El as shown by the dotted line in FIG. 9 due to distortion, the vertical runout detector 14
detects shake, and uses the detected value to maintain the distance M of the upright position of the orthogonal table 7 in accordance with the correction value from the correction program.

In the traverse drive device shown in FIGS. 6 and 7, the traverse correction shaft 64 is rotated by the rotation of the correction motor 63, and the traverse table 5 is moved via the female threaded portion 604.

In this way, during grooving, the tread surface and the cutting position P of the cutter always match, the cutter position is adjusted in response to the tire lateral runout E2, and the groove position from the tire center is constant over the entire circumference of the tire. Become.

Next, using the device of the present invention, the tire is rotated in advance to detect and store the vertical runout and lateral runout of the tire at each rotation angle position, and the runout data is retrieved and calculated at the time of grouping. The operation for correcting the cutter position will be explained with reference to the flowchart shown in FIG.

First, turn on the power, set the origin of each operating axis by commands from a computer (not shown), and attach the tire 3 on which pattern grooves are to be machined to the tire support stand 2 (J, with a specific tire as the origin mark). Marks 1 to 7 are placed on the tread surface corresponding to the indicators, the vertical runout detector 14 is placed at the scheduled grooving position of the tire tread, and the lateral runout detector [3 is placed on the tire tread. is set as the origin for NC control in accordance with the position of the vertical runout detector 14, and the tire 3 is rotated once from this position U, and the detected values of the vertical runout detector 14 and the lateral runout detector 13 during this period are determined as the rotational angular position, respectively. The data of the vertical shake detector 14 varies considerably from the data of the center position of the groove to be grooved.

When the automatic operation button is pressed after each runout data has been stored in the memory, the tire support shaft 21 rotates and the cutter 10
The cutter is controlled by multiple operating axes such as a transverse axis, a perpendicular axis, and a rotary axis, and descends into contact with the tire at a predetermined position. During this time, the cutter is heated and the rotational angle position from the origin is set at a constant 11-rips mark. It is possible to take out the shake data that does not need to be corrected in step (3) and turn off the taking out of the shake data that does not require correction, so that one of the correction axes is not operated.

Next, the operation of detecting only the vertical run-out of the tire while performing roofing, taking in data on the run-out, and performing calculations to correct the cutter will be described with reference to the flowchart of FIG.

When the operating power is turned on, the origin position of each operating axis is set by a command from a combination coater (not shown) according to the grouping pattern.

The tire 3 on which patterned grooves are to be formed is attached to the tire support shaft 2I, and the vertical runout detector 14 is installed facing the planned grooving position of the tire tread.

Control values when there is no tire runout are entered manually in the standard program of the computer, and according to this program, the direction of the cutter IO is set according to the cutting direction by the motor II, and the tire 3 is moved to the first position by the motor 22. While rotating in the direction of arrow T in the figure, the drive motor 81 of the orthogonal drive device 8 of the orthogonal table 7 is operated, and the orthogonal drive shaft 82
A predetermined grooving is performed according to the rotation of the

Runout data is retrieved from the memory according to the rotation angle position of the tire, the correction amount by the correction program is calculated by the correction program control command from the reference program, and the correction motor 83 of the orthogonal drive device 8 performs orthogonal correction based on the longitudinal vibration correction amount. The shaft 84 is rotated, and the amount of movement caused by the rotation is superimposed on the amount of movement specified by the standard program (additional if the correction value is positive, subtracted if the correction value is negative) to move the cutter 10 up and down, and at the same time apply correction to the standard program. The correction motor 63 of the traverse drive device 6 is driven by the lateral shake correction amount calculated by the program to rotate the traverse correction shaft 64, and the amount of movement due to the rotation is superimposed on the amount of movement according to the standard program (the correction value is correct). If it is negative, add it, if it is negative, subtract it)) move the cutter lO laterally.

In addition, if it is necessary to perform only one type of correction for vertical or horizontal shake, the correction program can turn on and off the orthogonal correction and transverse correction operations using the standard program so that they can be controlled separately. By turning off the corrected run-out data, the orthogonal table 7 is lowered in the Z-axis direction via the female screw body 85, and the cutter 10 heated by power supply is cut into the tire 3.

According to the reference program, the cut is made to a predetermined depth d from the reference tread surface F shown by the solid line in FIG. If the groove shape is not a straight line, the drive motor 61 or 7i of the traverse drive device 6 (driven by a quasi-program) moves the traverse table 5 in the Y-axis direction by the rotation of the traverse drive ++l+ 62, depending on the predetermined shape. Then, the lateral movement of the cutter 10 is controlled, and the desired grooving is performed.

During this time, if the tread surface of the tire 3 has a vertical runout El as shown by the dotted line in FIG. 9 due to distortion, the vertical runout detector 14
detects shake, and the correction motor 8 of the orthogonal drive device 8 of the orthogonal table 7 is activated according to the correction value from the correction program based on the detected value.
3 is driven, and in the embodiment shown in FIG.
5 is moved upward along the orthogonal drive shaft 82, the orthogonal table 7 is raised in the Z direction, the cutter 10 is raised, the cutter position is corrected, and the depth d is held constant. .

In the orthogonal drive device of the embodiment shown in FIG. 8, the female threaded body 85 is moved by the orthogonal drive shaft 82 according to the standard program, and the correction motor 83 is rotated based on the detected value to rotate the orthogonal correction shaft 84. raises the carriage 7.

In this way, during grooving, the longitudinal runout of the tire is detected, and the position of the orthogonal table is adjusted by a correction program based on the detected value while controlling the orthogonal drive shaft using the standard program, so that the tread surface and the cutting position P of the cutter are always aligned. match,
The tire tread depth is constant over the entire circumference of the tire.

Next, using the device of the present invention, the tire is rotated in advance to detect and store the vertical runout of the tire at each rotation angle position, and the runout data is retrieved and calculated during grooving to correct the cutter position. The operation will be explained using the flowchart shown in FIG.

During this time, the cutter is heated to perform predetermined grooving in accordance with the rotational angular position from the origin in a constant trajectory.

Vertical runout data is retrieved from the memory according to the rotational angle position of the tire, and the correction amount by the correction program is calculated in accordance with the correction program control command from the reference program. The correction shaft 84 is rotated, and the cutter 10 is moved up and down by superimposing the amount of movement caused by the rotation with the amount of movement according to the reference program (additionally when the correction value is positive, and subtracted when it is negative).

Further, the operation of detecting tire lateral runout while performing grooving using the present invention, taking in this runout data, and performing calculations to correct cutter lateral runout will be described with reference to the flowchart of FIG.

When the operating power is turned on, the origin position of each operating axis is set according to a command from a computer (not shown) according to the grooving pattern.

First, turn on the power, set the origin of each operating axis by commands from a computer (not shown), and then machine pattern grooves on the tire support base 2. Tire 3 is attached, a marking is made on the tread surface corresponding to a specific wear indicator as an origin mark, and the vertical runout detector 14 is placed toward the planned grooving position of the tire tread.

Rotate the tire 3 at a low speed, align the marging position with the position of the vertical runout detector 14, use l- as the origin for NC control, rotate the tire 3 once from this position, and calculate the detected value of the vertical runout detector I4 during this period. , and the rotation angle position is stored in the memory. The data of the vertical shake detector 14 is the data of the center position of the groove to be grooved.

When the automatic operation button is pressed after the runout data has been stored in the memory, the standard program of the NC device that controls the movement of the cutter to perform tire grooving causes the tire support shaft 21 to rotate and the cutter lO to move to the transverse axis. ,
The tire is mounted at a predetermined position under the control of a plurality of operating axes such as the orthogonal axis and the rotary axis, and the lateral runout detector [3 is installed facing the side surface of the tire buttress.

Control values when the tire does not run out are inputted into the standard program of the computer, and according to this program, the direction of the cutter 10 is set according to the cutting direction by the motor II, and the tire 3 is moved by the motor 22 to the first position. While rotating in the direction of arrow T in the figure, the drive motor 81 of the orthogonal drive device 8 of the orthogonal table 7 is operated, and the orthogonal drive shaft 82
The orthogonal table 7 is lowered in the Z-axis direction via the female screw body 85 due to the rotation of
The groove is cut to a predetermined depth from the tread surface, and the drive motor 61 of the traverse drive device 6 is driven according to the standard program according to the predetermined groove shape, and the traverse table 5 is moved in the Y-axis direction by 620 rotations of the traverse drive shaft. The lateral movement of the cutter 10 is controlled to perform the required grooving.

Furthermore, as shown in FIG. In the traverse drive device shown in FIG. 3, a drive gear 67 is controlled by a traverse correction shaft 64.
and rotating the female threaded body 65 via the driven gear 68,
By moving the traversing table 5 in the Y-axis direction, the cutter position is corrected as shown by the dotted line, and the distance M of the groove position from the tire center is maintained.

In the traverse drive device shown in FIGS. 6 and 7, the traverse correction shaft 64 is rotated by the rotation of the correction motor 63, and the traverse table 5 is moved via the female threaded portion 604.

In this way, the lateral runout of the tire is detected during grooving, and the amount of movement of the traverse table by the traverse drive shaft controlled by the standard program and the amount of movement of the traverse table controlled by the correction program based on the detected value are determined. Superimposed, tire lateral vibration E2
The cutter position is adjusted accordingly, and the left and right groove positions from the tire center are constant over the entire circumference of the tire.

Next, using the device of the present invention, the tire is rotated in advance to detect and store the tire lateral runout at each rotation angle position, and during grooving, this runout data is retrieved and calculated to correct the cutter position. The operation in this case will be explained with reference to the flowchart shown in FIG.

First, turn on the power, set the origin of each operating axis using commands from a computer (not shown), and add pattern grooves to the tire support 2. Mark the train]・surface−]2 that matches the tire indicator, and install the lateral runout detector 1.
3 towards the tire buttress (-j).

The tire 3 is rotated at a low speed, and the marging position is used as the origin for NC control, and the tire 3 is rotated once from this position, and the detected value of the lateral runout detector I3 during this period is stored in the memory together with the rotation angle position. Make me remember.

When the automatic operation button is pressed after the run-out data has been stored in the memory, the tire support shaft 21 rotates and the cutter 10 moves horizontally according to the standard program of the NC device that controls the movement of the cutter and performs tire grooving. The cutter is controlled by multiple operating axes such as axes, orthogonal axes, and rotary axes, and descends into contact with the tire at a predetermined position.During this time, the cutter is heated to produce a constant 1-inch mark according to the rotation angle position from the origin. Perform the prescribed crew pink.

Runout data is retrieved from the memory according to the rotational angular position of the tire, the correction amount by the correction program is calculated by the correction program control command from the standard program, and the lateral runout data is retrieved from the memory according to each rotational position of the buttress circumference. The data is taken out, and the correction motor 63 of the traverse drive device 6 is driven with the lateral shake correction amount calculated by the correction programno 1.
The traverse correction shaft 64 is rotated to cause the cutter 10 to traverse in a manner superimposed on the amount of movement according to the reference program.

[Effects of the present invention] As described above, the present invention has a cross drive shaft that moves a cutter that crew-pins a tire attached to a tire support shaft in the radial direction of the tire or parallel to the tire support shaft, and a transverse A transverse drive shaft that moves parallel to the tire support shaft via a stand, and a detector that detects the vertical and widthwise vibrations of the tire supported by the tire support shaft. The orthogonal drive axis and the transverse drive axis are controlled by the reference movement amount, and a correction movement type according to the detection value of the detector is superimposed on the reference movement amount to move the orthogonal table and the transverse table. Since the amount is corrected, even if longitudinal vibration A1 or lateral vibration of the tire occurs, the groove depth, load width, and groove position relative to the tread center of each product tire can be maintained constant, and the standard movement amount is The system is always controlled using the value set by the reference program, and the compensation movement amount can be superimposed on the standard movement amount using a separate correction program on the shake detection value, so the program configuration is simple and the device can be made smaller. If necessary, it can be configured to correct both the vertical and lateral vibrations of the tire, or only the - side, ensuring tire grooving correction and uniform roofing to improve product quality. It has the potential to improve productivity and yield.

[Brief explanation of the drawing]

Fig. 1 is a side view showing an embodiment of the present invention, Fig. 2 is a front view, Fig. 3 is a plan view showing the transverse drive device in section, Fig. 4 is a side sectional view of the orthogonal drive device, and Fig. 5 The figure is a partial side view showing one example of the device in which the vertical shake detector is installed, FIG. 6 is a side view showing another example of the traverse drive device, FIG. Fig. 8 is a side view showing another example of the straight one-segment movement device;
Figure 9 is an explanatory diagram showing the state of grooving, Figure 1O is an explanatory diagram showing the state of tire lateral vibration correction, and Figures 11 and 12 are examples of grooving operations to correct vertical and lateral vibration. 13 and 14 are flowcharts of a grooving operation that corrects only vertical shake, and FIGS. 15 and 16 are flowcharts of a grooving operation that corrects only lateral shake. 1 is a bed, 2 is a tire support base, 3 is a tire, 4 is a base, 5 is a traversal base, 6 is a traverse drive device, 6I is a drive motor,
62 is a transverse drive shaft, 63 is a correction motor, 64 is a transverse correction shaft, 65 is a female threaded body, 66 is a support boss, 67 is a drive gear, 68 is a driven gear, 7 is a rectilinear table, 71 is a rotating arm, 7
2 is an arm support shaft, 73 is an axis line, 8 is a direct drive device,
8I drive motor, 82 orthogonal drive shaft, 83 correction motor, 84 orthogonal correction shaft, 85 female thread body, 86 support boss, 87 drive gear, 88 driven gear, 9 cutter support device, 10 cutter , 13 is a horizontal shake detector, and 14 is a vertical shake detector. Patent applicant: Sumitomo Rubber Industries, Ltd. Yaskawa Equipment Engineering Co., Ltd. Procedural amendment (voluntary)

Claims (1)

[Claims] 1. A cutter that uses a plurality of operating axes, including a transverse drive shaft of a transverse table that moves the cutter in the radial direction of the tire or parallel to this, and a transverse drive shaft of a transverse table that moves the cutter in the width direction of the tire. In grouping tires to control the movement of tires and process desired pattern grooves on the tire surface, before or during grooving, the vertical runout in the radial direction and the lateral vibration in the width direction of the tire supported on the tire support shaft are controlled. A correction program is created that detects runout, moves the orthogonal carriage and the transverse carriage respectively based on the detected values, grooves the tire according to the standard program, and adjusts the amount of movement of the carriage by the orthogonal drive shaft and the traversal carriage by the transverse drive shaft. A tire grooving correction method characterized by superimposing each movement amount according to the correction program on the movement amount of the stand. 2. Controlling the movement of the cutter using a plurality of operating axes, including a transverse drive shaft of a transverse table that moves the cutter in the radial direction of the tire or parallel thereto, and a transverse drive shaft of a transverse table that moves the cutter in the width direction of the tire; A detector that detects vertical runout in the radial direction and lateral runout in the width direction of the tire supported by the tire support shaft before or during grooving when grouping tires to form desired pattern grooves on the tire surface. A orthogonal correction axis and a transverse correction axis that rotate according to a correction program based on the detection value of the detector are provided in parallel with the orthogonal drive axis and the transverse drive axis, respectively, which rotate according to the reference program together with each operating axis, and the A orthogonal drive device that superimposes the amount of movement of the orthogonal table due to the rotation of the orthogonal drive shaft and the amount of movement of the orthogonal table due to the rotation of the orthogonal correction axis, and the amount of movement of the orthogonal table due to the rotation of the traverse drive shaft and the amount of movement of the orthogonal table due to the rotation of the traverse correction axis. A tire grooving correction device characterized by comprising a traverse drive device that superimposes the amount of movement of a table. 3. The orthogonal drive shaft and the transverse drive shaft are each composed of a feed screw screwed into an internally threaded body provided on the orthogonal table and the transverse table for moving the cutter, and drive gears rotated by the respective correction shafts, and the female screws. 3. The tire grooving correction device according to claim 2, further comprising a driven gear that is integrally connected to the tire body and meshes with the drive gear. 4. The orthogonal drive shaft, the transverse drive shaft, the orthogonal correction axis, and the transverse correction axis are all composed of feed screws, and the respective drive shafts and correction axes are connected to internal screw bodies provided on the orthogonal table and the transverse table for moving the cutter. Screw one of the shafts together,
3. The tire grooving correction device according to claim 2, wherein the other shaft is screwed into a female threaded portion of an intermediate support supporting the one shaft and attached to the fixing portion. 5 In tire grooving, the movement of the cutter is controlled using multiple operating axes, including the orthogonal drive shaft of the orthogonal table that moves the cutter in the radial direction of the tire or parallel to the tire, to form a desired pattern of grooves on the tire surface. , detect the vertical runout in the radial direction of the tire supported by the tire support shaft before or during grooving, create a correction program that moves the straight platform based on this detected value, and then adjust the tire using the standard program. A tire grooving correction method characterized by grooving and superimposing a movement amount according to a correction program on the movement amount of the orthogonal carriage by the orthogonal drive shaft. 6. In tire grooving, the movement of the cutter is controlled using multiple operating axes, including the orthogonal drive shaft of the orthogonal table that moves the cutter in the radial direction of the tire or parallel to it, to form a desired pattern of grooves on the tire surface. , equipped with a detector that detects the vertical runout in the radial direction of the tire supported by the tire support shaft before or during grooving, parallel to the orthogonal drive shaft that rotates according to the standard program along with each operating axis. providing an orthogonal correction shaft that rotates according to a correction program based on the detected value of the detector;
A tire grooving correction device comprising a orthogonal drive device that superimposes the amount of movement of the orthogonal table due to rotation of the orthogonal drive shaft and the amount of movement of the orthogonal table due to rotation of the orthogonal correction shaft. 7. The orthogonal drive shaft is constituted by a feed screw rotatably provided on the orthogonal stand for moving the cutter and screwed into an internally threaded body, and the drive gear rotates by the orthogonal correction shaft parallel to the orthogonal drive shaft; 7. The tire grooving correction device according to claim 6, further comprising a driven gear that is integrally connected to the female threaded body and meshes with the drive gear. 8. Both the orthogonal drive shaft and the orthogonal correction shaft are configured with feed screws, and one of the respective drive shafts and correction shafts is screwed into a female screw body provided on the orthogonal table for moving the cutter, and the other shaft is 7. The tire grooving correction device according to claim 6, wherein the tire grooving correction device is attached to a fixing portion by being screwed into a female threaded portion of an intermediate support that supports the one shaft. 9 In tire grooving, the movement of the cutter is controlled using multiple operating axes, including the traverse drive axis of the traverse table that moves the cutter in the width direction of the tire, and the tire support shaft is used to machine a desired pattern of grooves on the tire surface. A correction program is created to detect the lateral vibration in the width direction of the tire supported by the tire before grooving or while grooving, and based on this detected value, a correction program is created to move the traverse platform, and the tire is grooved according to the standard program. A method for correcting tire grooving, characterized in that a movement amount according to a correction program is superimposed on the movement amount of the traverse table by the traverse drive shaft. 10 During tire grooving, the movement of the cutter is controlled using multiple operating axes, including the traverse drive axis of the traverse table that moves the cutter in the width direction of the tire, and a desired pattern of grooves is formed on the tire surface. A detector is provided for detecting the lateral runout in the width direction of the tire supported on the shaft before or during grooving, and the detector is arranged parallel to the traverse drive shaft which rotates according to a reference program together with each motion axis. A traversing correction shaft is provided which rotates according to a correction program based on the detected value of the traversing drive, and a traversing drive device is provided which superimposes the amount of movement of the traversing table due to the rotation of the traversing drive shaft and the amount of movement of the traversing table due to the rotation of the traversing correction axis. A tire grooving correction device featuring: 11. The traverse drive shaft is constituted by a feed screw that is rotatably provided on a traverse table for moving the cutter and is engaged with a female screw body, and the drive gear rotates by a traverse correction axis that is parallel to the traverse drive shaft; 11. The tire grooving correction device according to claim 10, further comprising a driven gear that is integrally connected to the female threaded body and meshes with the drive gear. 12 Both the traverse drive shaft and the traverse correction shaft are configured with feed screws, and one of the respective drive shafts and correction shafts is screwed into an internal threaded body provided on the traverse table for moving the cutter, and the other shaft is 11. The tire grooving correction device according to claim 10, wherein the tire grooving correction device is attached to a fixing portion by being screwed into a female threaded portion of an intermediate support that supports the one shaft.