JPH0531096B2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) The present invention relates to a tire uniformity machine.

(Prior Art) As a tire uniformity machine, for example, the one described in Japanese Patent Publication No. 47-7562 is known.

This conventional system consists of an incoming roller conveyor, an intermediate roller conveyor, and an outgoing roller conveyor, all of which are configured to actively rotate a number of rollers in the same direction, and are arranged in a series in a nearly horizontal state. A tire uniformity measuring device was arranged at the intermediate roller conveyor position.

Then, the tire to be measured is placed on the carry-in roller conveyor, the rollers are driven to rotate, the tire is conveyed to the tire uniformity measuring device position on the intermediate roller conveyor, and then the rotation of the rollers is stopped. , measure the tire uniformity with the measuring device, then rotate the rollers again to convey the measured tire to the unloading roller conveyor, make the measured tire stand still at the position, and then record the measurement result. A marking device was used to stamp the surface of the measured tire using a marking device.

It was sufficient to stamp the grade using the marking device at any arbitrary position on the tire surface.
Therefore, when the tires are conveyed from the intermediate roller conveyor to the discharge side roller conveyor, even if the position of the tires is shifted (even if the tires rotate on the conveyor), there is no problem.

On the other hand, there are already known marking devices that measure non-uniformity using the tire uniformity measurement device and place so-called high point marks at non-uniformity locations (for example,
(See Special Publication No. 53-42163).

When marking the high point mark, the marking was performed within a tire uniformity measuring device.

That is, if an attempt is made to also mark the high point mark at the above-mentioned grade marking position, there is a risk that the tire will rotate while the tire is being transported to the marking position and the phase may shift, making it impossible to mark at the correct position. Therefore, a high point mark was marked at the measurement position.

(Problem to be solved by the invention) A high point marking device is installed in a measurement position test zone (measurement position test zone) where various measurements are performed in a uniform machine as in the prior art, and the high point position is assigned based on the measurement results in the zone. In the conventional method in which a high point mark is subsequently marked at the point position, a series of operations such as measurement of uniformity in the test zone, indexing of the high point position, and marking of the high point mark are continuously required. Therefore, the marking (dot) time (approximately 4 seconds) cannot be removed (omitted), and it has been impossible to shorten the cycle time accordingly.

Moreover, hitting a high point mark in a different zone may cause a phase angle shift during tire movement.

In addition, as is known, the test zone contains various mechanisms such as a rotating shaft mechanism with upper and lower rims that supports the tire to be measured, a tire internal pressure supply/discharge mechanism, a drum (road wheel) mechanism, etc., so there is free space. was extremely small. Therefore, the required movement mechanism of the high point marking device installed in this narrow space is limited,
It was also extremely difficult to change and adjust the position and angle of the impact point relative to the sidewall surface of the tire. For example, when the tire rim is a two-stage rim, there are inconveniences such as not being able to make a point near the bead of a tire with a small bead diameter.

In addition, in the conventional method (described in Japanese Patent Publication No. 47-7562), after the tire is transported to the measurement position by the transport device, the tire is centered by the position adjustment mechanism, and then the uniformity is measured. I was doing it. Therefore, time is required for tire centering by the positioning mechanism, which lengthens the cycle time.

Therefore, the present invention solves the problems caused by the conventional high point marking system as described above. The tire is made movable to the exit conveyor side in a fixed and immovable state so that the dot position (high point position) will not be distorted or shifted, and the dot is made to the high point position on the tire exit conveyor side. , by omitting the time for tire centering at the measurement position, and by carrying out tire loading and unloading at the same time.
The purpose of the present invention is to provide a tire uniformity machine capable of shortening the sill time by simultaneously performing a test at a different position.

(Means for Solving the Problems) The present invention provides a measuring device for measuring tire uniformity, a carrying-in device for carrying tires to be measured into the measuring device, and a carrying-out device for carrying out measured tires from the measuring device. and a marking device for marking the measured tire surface with the measurement result by the measuring device, in order to achieve the above-mentioned object, the following technical measures are taken.

That is, the carry-in device has a holding means that removably engages with the tire to be measured to maintain a centered state and transport the tire, and the carry-out device detachably engages with the tire to be measured and transports the tire. The marking device is provided at a position where marking can be performed at the measured tire carrying-out position by the carrying-out device, and the carrying-in device and the carrying-out device are The apparatus is characterized in that it is connected by an interlocking connection means so that the tires to be measured can be brought in and the tires that have been measured can be taken out at the same time.

(Function) According to the present invention, first, the tire to be measured is
centered by the holding means of the loading device;
The tire is held in this state and transported to the tire uniformity measuring device, and at the same position, the holding means is disengaged from the tire. Thereafter, the holding means of the carry-in device returns to its original standby position. At this time, since the carry-out device and the carry-in device are interlocked and connected, the holding means of the carry-out device is at the position of the measuring device.

The tire is then rotated by the measuring device, various measurements are taken, and the high point mark position is determined. The rotation of the measured tire is stopped so that the high point position is at a predetermined position.

Next, the holding means of the carry-out device holds the measured tire in a non-rotating state and carries it out to the carry-out position while keeping the high point position unchanged.

Then, at the same position, a high point mark is marked on the tire surface by the marking device.

A carry-in device operates in conjunction with the carry-out operation of the carry-out device, and after the measured tire is carried out, a new tire to be measured is carried into the measuring device.

Therefore, in the test zone, the operation of loading tires → measuring uniformity → determining the high point position → loading and unloading tires is repeated, and the marking of high point marks is done simultaneously at different positions. Therefore, the cycle time can be shortened accordingly.

(Example) Hereinafter, an example of the present invention will be described based on the drawings.

As shown in FIGS. 1 to 3, the tire to be measured T (see FIG. 3) is supplied to an inlet conveyor 113, and after point marking is performed based on the measurement results, the tire is removed from the machine. Tires T fed at the delivery end of the entrance conveyor 113 between the tire T and the exit conveyor 114 for delivery to
Standby zone AZ where work is done to hold the
has been established. A known test zone BZ is provided which receives the tires T from the waiting zone AZ and has a measuring device for measuring non-uniformity in the tires. Furthermore, the non-uniformity of the starting end of the exit conveyor 114 following this test zone BZ is measured in the test zone BZ,
The peak point of the fundamental wave of the RTV is determined and the peak point on the tire T is designated as the marking zone CZ for marking a so-called high point mark (Specific details regarding the measurement of non-uniformity, the indexing of the high point mark, and the marking point are provided). Kosho 53-
42163).

The entrance conveyor 113, waiting zone AZ, test zone BZ, marking zone CZ and exit conveyor 114 are connected to the main column 109 and frames 109a and 109b deployed on both sides thereof.
Figure 1 shows the entire tire uniformity machine installed in series, and Figure 4,
The main part is shown in FIG.

A pair of parallel guide rails 110 are installed on the outside of each zone between the waiting zone AZ and the marking zone CZ of the exit conveyor 114. A carrier 103 that reciprocates between the standby zone AZ and the test zone BZ, and a carrier 104 that reciprocates between the test zone BZ and marking zone CZ are slid along the rails 110, respectively. It is set up freely. Said carrier 1
03, 103 and 104, 104, a pair of centering arms 10 sandwiching each symmetrical position of the tread surface of the tire under test T and the tire after measurement T located in zones AZ and BZ, respectively.
Four centering arm devices 102 are provided in which the centering arm devices 2a and 102a are provided so as to be openable and closable.
Furthermore, each carrier 10 lined up in the zones AZ and BZ
3, 103, 104, 104 are connected to the connecting member 105,
105 so that they can be connected together.

That is, the carrier 103, the centering arm device 102, etc. constitute the carrying-in device of the present invention. Further, the carrier 104, the centering arm device 102, and the like constitute the unloading device of the present invention. The centering arm device 102 of the unloading device constitutes the holding means of the present invention. Further, the connecting member 105 constitutes the interlocking connecting means of the present invention.

In the exit conveyor 114 in which the marking zone CZ is provided at the starting end of the conveyor, the external appearance is shown in FIGS. 1 and 2, and the main parts are shown in FIGS. As shown, a high point marking device 101 is installed to place a desired mark at a high point mark position determined on the sidewall surface of the tire T that has been measured.

Next, the structure of each main part will be explained. 4th, 5th
8, 9, 10, and 11, the guide rail 110 for reciprocating the centering arm device 102 runs along the inner surface of the main column 109, as shown in FIGS. 4 and 10. It is installed via a pedestal 124. The guide rail 110 has a dovetail convex cross section, and a slider 125 having a dovetail concave cross section attached to one side of the carriers 103 and 104 is slidably fitted therein. At this time, the number of sliders 125 is free. Furthermore, the carriers 103 and 104 all have the same structure, and the four centering arm devices 102 attached to these carriers 103 and 104 also have the same structure, so here only one carrier 103 and the centering arm device attached to it will be described. The structure is illustrated below.

A pair of carriers 103, 103 is a connecting frame 126
connected by. A piston rod of an advancing/retracting cylinder 108 installed on a frame 107 provided above the entrance conveyor 113 is connected to this connecting frame 126. Through the movement of the piston rod in the cylinder 108, the pair of carriers 103, 103 are synchronously reciprocated on the guide rails 110, 110 by the connecting frame 126, and the other carrier 104,
104 will also be accompanying him.

On the carrier 103, a pair of left and right centering arms 102a, 102a are connected to the pivot shaft 12, respectively.
7,128. Each arm 102
A roller 115 is attached to the tip. As shown in FIGS. 8 and 9, interlocking gears 129 and 130 are attached to the pivot shafts 127 and 128 and mesh with each other.

The carrier 103 on the upper side in FIG.
As shown in the same figure and FIG. 9, a link 131 is connected to the lower end of one of the pivot shafts 127. The same link 131 has both carriers 1 mentioned earlier.
Bottom frame 12 of connecting frame 126 connecting 03, 103
A piston rod of an opening/closing cylinder 111 installed at 6a is connected. and the other pivot axis 1
28 and the link 133 connected to the lower end of one of the pivot shafts 127 as shown in FIG. It is connected by .

Therefore, according to this structure, the carrier 103,1
Centering arm device 102, 102 on the 03 side
, the upper and lower carriers 10 shown in FIG.
Each centering arm device 1 in 3,103
Arms 102a, 102a in 02, 102
By retracting the piston rod of the opening/closing cylinder 111 from the open position in a straight line, the pivot shaft 127 of the link 131 is rotated in the clockwise direction, and the gear 129 of the pivot shaft 127 and the gear 13 are rotated.
As the rotation shaft 128 rotates counterclockwise due to the interlocking operation of 0, the pair of centering arms 102a, 102a of the centering arm device 102 in the upper carrier 103 in the figure rotates in the closing direction.

This clamps both upper circumferential sides of the tread surface of the tire T, and together with this, the rotation axis 12
8 rotates in the counterclockwise direction, the link 132 rotates along with the rotation, and the connecting bar 134 is thereby pulled upward, and the pivot shaft 127 of the carrier 103 on the lower side in the figure is rotated clockwise via the link 133. The pair of arms 102a, 102a in the lower centering arm device 102 also rotates in the closing direction due to the counterclockwise rotation of the other pivot shaft 128 due to the rotation and interlocking of the gears 129, 130.

With this, both lower circumferential sides of the tread surface of the tire T are held, and the symmetrical circumferential side of the tire T is held fixed and immovable.

Then, along with the straight movement of the carriers 103, 103, the tire T is moved between the zones AZ and BZ.

Also, the carrier 104,1 by the connecting member 105
Centering arm device 102, 102 on the 04 side
The situation is the same in , and the tire T can be moved between zones BZ and CZ.

In this embodiment, the connecting member 105 includes:
As shown in FIGS. 4 and 11, a cylinder is used, and in the embodiment shown in _FIG . This is because the distance L ₂ between the centers of BZ and marking zone CZ is different. That is, when the carrier 103 moves from zone AZ to BZ, the carrier 104 moves from zone BZ to CZ.
This is for distance correction to reach up to. Said L ₁ ,
If L ₂ is of equal length, the connecting member 105 such as a simple shaft or bar may be used.

In addition, as shown in the figure, carriers 104, 104
is a bottom frame 1 similar to the bottom frame 126a of the connecting frame 126.
26a, to which an opening/closing cylinder 111 is installed. Of course, the synchronized opening/closing mechanism of the arms 102a, 102a in the centering arm device 102 and the synchronized movement/retraction mechanism of the carriers 103, 104 are equally effective even if other than the illustrated example is used.

Next, the entrance conveyor 113 and the exit conveyor 114
An example will be described regarding the conveyor in the test zone BZ and the conveyor in the test zone BZ.

The inlet conveyor 113 is illustrated in FIGS. 12 and 13. The conveyor 113 may be of any type as long as it actively moves the tire T to be measured to a waiting zone AZ provided at the end of the conveyor 113. In this embodiment, the conveyor frame 13 has the required length.
A required number of rollers 136 are arranged in rows on the frame 109a, and the frame body 135 is mounted on the frame 109a. Interlocking mechanisms such as a sprocket 138 and a chain 139 are connected to the rotating shafts 137 of each roller 136, and the rollers 136 are rotatably rotated by a drive motor 140.

Further, in the middle of the conveyor 113, a pair of stoppers 141, 141 are held on both sides of the conveyor 113 by holders 143 each attached to a rotating shaft 142. Links 144 attached to each pivot shaft 142 are connected to each other by a connecting bar 145, and one link 1
By connecting the piston rod of the opening/closing cylinder 146 to
temporarily stop. And stopper 141,1
41 is a standby zone AZ provided at the end of the conveyor 113, where the tire T is held fixed by the centering arm devices 102, 102, and subsequent tires are stopped at this position until the tire T is moved to the test zone BZ. be.

Further, on the side opposite to the stopper of the holder 143, which is swingable about the pivot shaft 142, there is a mechanism for detecting the arrival of the tire T, for example, and automatically advancing the stopper 141 in the open position to the stop position as shown by the chain line in the figure. A sensor 147 or the like may also be provided.

Also, the conveyor 113 that constitutes the standby zone AZ
At the end of the conveyor frame, a lift conveyor 149 is equipped with a group of freely rotating rollers 148 that support the bottom surface of the tire in order to smoothly move the tire T on the same zone AZ into the next test zone BZ. One end of 150 is pivoted to a pivot 151, and the thirteenth
As shown in the figure, it is attached so that it can be raised and lowered freely.

The example illustrated in FIGS. 14, 15, and 16 is provided in the test zone BZ, supports the tire T to be measured held by centering arm devices 102, 102, and supports arms 102a,
Details of the center conveyor 112 for smoothly passing the tire T when the measured tire T is moved to the next marking zone CZ by releasing the clamping of the tire 102a and, after the test, is clamped again by the arms 102a, 102a. It is.

As is known, in the test zone BZ of the Uniformity machine, as shown in FIG. 16, a lower spindle 116 equipped with a lower rim 152 is installed at the center of the zone so as to be able to move up and down via a cylinder 117 (see FIG. 3). It is being Therefore, in order not to interfere with this, a pair of conveyors 112a and 112b are formed separately on both sides of the test zone BZ, and each is provided on a stand 153.

That is, in each of the conveyors 112a and 112b, a group of rotatable rollers 155 are arranged in a row on a conveyor frame 154, and sub rollers 1 of different lengths are attached to each tip of the roller 155 via the frame 154.
55a and 155b are attached. This is to immediately respond to a large diameter tire T ₁ as shown in FIG. 14, and even a small diameter tire T ₂ . A conveyor frame 154 in which such a group of rollers 155 are arranged in a row
The guide frame 15 is fixed on the stand 153.
6, by fitting the bracket 159 and the slide bracket 160 to the screw shaft 157 and guide shaft 158 provided in the frame 156 through the screw holes provided on the frame 154 side, the frame can be mounted to move forward and backward. be.

As a result, as shown in FIG. 14, the conveyor frame body 154 moves forward toward the center of the zone on the left side of the figure, and retreats from the center of the zone on the right side of the figure. In response to this, the bottom surface of the tire can be stably supported. In addition, the screw shaft 157, the guide shaft 158, the screw hole bracket 159, and the slide bracket 16
The forward and backward movement structure according to 0 is as shown in FIGS. 17 and 18.

In addition, regarding forward and reverse rotation of the screw shaft 157,
In the embodiment, as illustrated in FIGS. 15 and 16, a drive shaft 161 is connected between both stands 152 and 152.
A sprocket 16 provided on the shaft 161
2, 162 and a sprocket 163 provided at the end of the threaded shaft 157 in the guide frame 156, respectively, with a chain 164 stretched, and the drive shaft 161 and the drive motor 165 are connected by the sprockets 166, 167 and the chain 168. , each conveyor 11
2a and 112b are synchronously moved forward and backward toward the center of the zone via the conveyor frame 154.

Of course, the center conveyor 112 in this test zone BZ may be other than the one shown in the illustration, and can quickly respond to large and small tires T, stably support the bottom surface of the tire, and allow the tire to freely pass through the bottom surface without resistance when moving the tire. It is equally effective if it can achieve the purpose.

What is shown in FIGS. 19 and 20 are details of the exit conveyor 114.
Reference numeral 4 denotes a conveyor frame 169 constructed on a frame 109b, in which a group of rollers 170, which are actively rotated for carrying out tires, are rotatably mounted on shafts. A stopper 173 for a tire T is provided in the middle of the conveyor 114 via a bracket 171 and a cylinder 172 so as to be movable up and down. The roller 170 at the position corresponding to this stopper 173 is divided roller 170a which is provided on both sides as shown in the figure.
It is said that

Furthermore, the marking zone CZ is provided on the entrance side of the conveyor 114, and on this entrance side, a lift conveyor 174 is connected to the aforementioned test zone BZ side to ensure smooth movement of the tires T. Conveyor frame 17 that can be raised and lowered freely
6. The rollers 177 are attached to the frame 176 in a freely rotationally axially arranged manner.

Also, each roller 17 on the exit conveyor 114
For rotation of 0,170a, each roller 170,17
The rotating shaft 178 of 0a is the sprocket 17
9. They are connected by an interlocking mechanism including a chain 180, and are driven by a drive motor 181.

On one side of the marking zone CZ of this exit conveyor 114, in the embodiment at an angle of 45° toward the center, the marking device 101 previously illustrated in FIGS. 6 and 7 is installed as shown by the chain line. , and are installed as shown by the solid lines in Figures 1 and 2.

The structure of the exit conveyor 114 includes centering arm devices 102, 10 within the marking zone CZ.
2, the marking device 101 completes the required marking on the measured tire T set by the marking device 101, and the tire T is carried out of the machine, so the tire is carried out by active rotation. If it is possible, structures other than those shown in the illustrations may be used.

The detailed structure of the marking device 101 that performs required high point marking on the sidewall surface of the measured tire T is as shown in FIGS. 6 and 7. That is, on one side of the exit conveyor 114,
The lower end of a tilt frame 2 is pivotably supported by a pivot 10 to a stand 1 which is set up at a 45° angle with respect to the center of a marking zone CZ. A bracket 7 protrudes from the top of the frame 2.
One end of the screw shaft 34 is connected to the screw shaft 34, and the screw shaft 34 is screwed into a nut tube 8a rotatably provided on the bracket 8 fixed to the upper part of the stand 1, and a handwheel 71 is attached to the nut tube 8a. As a result, the rotation of the handwheel 71 causes the nut cylinder 8a to rotate, thereby moving the screw shaft 34 forward and backward, thereby making it possible to freely adjust the tilt frame 2 to any inclination angle.

A top part 11 projecting in an L shape from the upper end of the tilt frame 2 has a screw shaft 9 in the center and guide shafts 29, 29 on both sides thereof in parallel as shown in the sixth figure.
In addition, the screw shaft 9 is rotatably mounted. and the block 23 at the upper end of the slide frame 3.
Although not shown, the guide shafts 29, 29 are fitted with slide holes, and the screw shaft 9 is fitted with screw holes, respectively, to hold the screws. By attaching a handwheel 72 to one end of the screw shaft 9, the block 23, and therefore the slide frame 3, can be moved in the direction of arrow X-X in FIG. This means that they can freely move forward and backward.

As shown in FIG. 6, a pair of guide rods 36 are attached to one surface of the slide frame 3 in the vertical direction. A slider 51 provided at the upper part of the elevating frame 4 is slidably mounted on the guide rods 36, 36. The piston rod of the lifting cylinder 58 installed on the other side of the slide frame 3 is connected to the bracket 4 provided at the lower end of the lifting frame 4.
a through a joint 24. By moving the piston rod of the lifting cylinder 58 back and forth, the lifting frame 4 can be moved up and down along the guide rods 36, 36.

A bracket 30 is installed in the center of the lifting frame 4.
A rotating shaft 12 is provided which is rotatable by a stepping motor 61 and a speed reducer 60. Same rotation axis 1
2 to hold the center of the disc-shaped marking bracket 6 in the embodiment. In the embodiment, eight marking pins 14, 1 (the number can be freely increased or decreased) are placed at equal positions on the circumference of the marking bracket 6.
5, 16, 17, 18, 19, 20, 21 are provided around the circle of the bracket 6.
They are respectively installed so as to be movable forward and backward in the radial direction via the elastic supports of springs 54.

Therefore, the marking bracket 6 moves up and down along with the lifting frame 4 in the direction of arrow Y-Y in FIG.
Further, the bracket 6 is provided rotatably in the direction of arrow Z--Z in FIG. Furthermore, by tilting the tilt frame 2 and moving the slide frame 3 forward and backward, the marking bracket 6 can be tilted and moved forward and backward.

Each of the marking pins 14 to 21 has a small-diameter dot pin head 14a to 21a and a large-diameter marking guide 13, and each has a built-in heater (not shown in the figure), so that it can be used for arbitrary purposes. It is said that it can be heated to a certain temperature. Each pin head 14a
21a are different in dot shape and content, as illustrated in FIG.

A substantially L-shaped tape support guide 5 is attached to the lower end of the elevating frame 4 so as to protrude toward the marking bracket 6. The guide 5 is formed with a tape guide surface 5b having a pin head protrusion hole 5a which is the hitting point of the marking pins 14-21. A reel-shaped mounting portion 4 is provided to removably attach the marking tape 25 wound in a roll to a bracket 93 that stands parallel to the marking bracket 6 from the tip of the guide 5.
1. Guide rollers 43, 43 of the marking tape 25 fed out from the attachment portion 41 are rotatably attached via support members, respectively. A winding section 42, also in the form of a reel, of the marking tape 25 attached onto the tape guide surface 5b via the guide rollers 43, 43 is provided using the lifting frame 4.

The winding of the tape 25 in the winding section 42 is as follows:
When one dot operation at the dot position is completed through the pin head protruding hole 5a mentioned above, the tape 25 is intermittently wound in one pitch. For this purpose, a reversible motor 63 installed using the tape support guide 5 or the lifting frame 4 drives a pulley shaft 64 via a reducer (not shown) and the winding section 4.
The two pulley shafts 45 are connected by a belt 50 as shown in FIG. 7, and a guide roller 44 is also interposed between the tape guide surface 5b and the winding section 42.

Further, as is already clear, the marking bracket 6 is rotated as required by the rotation of the rotating shaft 12, and any of the marking pins 14 to 21 to be used is set at the position of the pin head protruding hole 5a, which is the hitting position. At this time, in order to pressurize the marking pin and perform a dotting operation in which any of the pin heads 14a to 21a protrude from the pin head protrusion hole 5a, in the embodiment, the tape support guide 5 described above is used.
A driving cylinder 59 is installed on the bracket 93 as shown in FIG. And the hammer 3 attached to the piston rod of the same cylinder 59
7, the marking pin guide 13 is pressed down. As a result, the pin head presses the marking tape 25 on the tape guide surface 5b onto the tire sidewall surface through the protruding hole 5a. The heat from the pin head melts the paint on the marking tape 25, so that a mark corresponding to the shape of the pin head is transferred onto the sidewall surface.

Also, as shown in Fig. 7, the marking tape 2
A phototube 74 is used as a detection member for detecting the presence or absence of tape guide roller 43 and tape guide surface 5b.
be placed between the In order to appropriately control the lowering position of the elevating frame 4 with respect to the tire sidewall surface, a limit switch 65 is provided on one side of the tape support guide 5, as shown in FIG.

According to this marking device, the marking bracket 6 is also tilted by the inclination angle of the tilt frame 2, and the impact angle with respect to the tire sidewall surface at the impact positions of the marking pins 14 to 21 on the bracket 6 is determined based on the outer shape of the sidewall surface. It can be adjusted to the most appropriate angle in response to the situation.

Further, by moving the slide frame 3 back and forth in the horizontal direction, the positions of the marking pins 14 to 21 on the width of the sidewall surface can be adjusted over a very wide range from the vicinity of the bead portion to the upper side.

As a result, when marking the high point mark and grade mark on the sidewall surface of the tire T that has been measured, it is possible to immediately set the high point mark and the grade mark at the most appropriate position and to change them freely. Moreover, device 1
By installing 01 on the exit conveyor 114 side, the high point marking device is more flexible and easy to use than the conventional high point marking device, which is installed in a narrow space restricted by test equipment in the test zone BZ with reduced mechanisms and functions. A marking device with a reliable movement function can be easily installed using the opening above the conveyor. Further, as in the embodiment, a mechanism for a large number of marking pins 14 to 21, a sufficient stock amount, and an easily replaceable marking tape 25 can be installed, and a sufficient pressure stroke can be taken to make a clear marking point. It is. Furthermore, selecting the marking pin and setting it at the dot position becomes extremely easy. Then, the test is completed in the test zone BZ, and the measured tire T whose high point position has been determined is placed in the centering arm device 102, 1.
02, there is no fear of phase angle deviation of the high point position, and error-free point markings can be performed.

The marking device described above as well as the first embodiment
However, instead of the embodiment, for example, the marking device disclosed in Japanese Patent Publication No. 53-42163 mentioned above can be used. The device disclosed in the same publication is installed in the test zone BZ, and there is no problem in the case of high point marking only, and the example device can perform grade marking in addition to high point marking at the same time. It is advantageous in this respect.

Next, the operation of the embodiment having the above configuration will be explained.

In FIGS. 4 and 5, the tire T to be measured is placed on the entrance conveyor 113. The conveyor 113 is driven to send the tires T to the waiting zone AZ at the end of the conveyor 113, and then stopped. At this position, the pair of centering arms 102a, 102a in each centering arm device 102, 102 on the carrier 103, 103 side facing the same zone AZ are rotated inward from the solid line position shown in the figure, and the four Four points on the symmetrical circumferential side of the tread surface of the tire T are held between the arms 102a. At this time, a roller 115 is attached to the tip of the arm 102a, and the roller 115 supports the tire T on the circumferential side, thereby holding the tire T in a fixed and immovable state. At this time, depending on the magnitude of the rotation angle of the pair of adjacent centering arms 102a, it is possible to quickly adapt to each size of tire diameter, as shown by the large diameter tire T ₁ and the small diameter tire T ₂ in the figure.

Next, the tires T held in this standby zone AZ
, the carriers 103, 103 and the guide rail 11
By moving the tire T along lines 0 and 110 toward the text zone BZ, the tire T is set at the center of the test zone BZ. At this time, the carriers 1 connected by the connecting member 105
04, 104, the centering arm devices 102, 102 provided on the carriers 104, 104 are moved to the marking zone CZ on the exit conveyor 114 with the arms in the open position shown by the solid line in the figure (Fig. 3). (shown with a dashed line). For the tire T to be measured thus moved into the test zone BZ, the carriers 103, 10
Each centering arm device 102,1 in 3
By rotating each arm 102a, 102a of 02 outward, the clamping is released.

As the carriers 103, 103 retreat to the standby zone AZ, the carriers 104, 104 are also carried along via the connecting member 105, and move to the marking zone CZ.
Return to Test Zone BZ again. At the same time, in the test zone BZ, the lower spindle (see FIG. 3 below) 116 having a lower rim for the lower bead of the tire is checked, just like the test zone in the known Uniformity machine. Subsequently, the upper bead of the tire is moved to the upper spindle 118 with the upper rim by lifting the lower spindle 116 by the cylinder 117.
Check the following. Then, inflation is performed by supplying internal pressure into the tire T. Then, the required test work begins while the tire T is rotated by a motor 119 and a drive mechanism 120, and the tire T is brought into contact with a drum 122 equipped with a load cell 121 via a carriage 123.

That is, due to this, in the rotating tire T
It detects RTV and LFV waveforms, analyzes detected waveforms, calculates high point positions, and performs other measurement tasks in a known manner.

During this test work, the next tire T to be measured is carried into the entrance conveyor 113 side, the same tire T is sent into the waiting zone AZ, and the carrier 1 is returned.
Centering arm device 102 on the 03, 103 side
By closing and rotating each arm 102a in , the tire T is held and fixed.

The measured tire T whose test work has been completed in the test zone BZ is stopped by retracting the drum 122 and stopping the motor 119 and drive mechanism 120. At the time of this stop, the high point position HP identified by the test corresponds to the striking point position of the marking device 101 on the exit conveyor 114, that is, the position corresponding to the position of the pin head protruding hole 5a in the tape support guide 5. It is stopped as shown in .

In the illustrated example, when the marking device 101 is provided at a 45° angle toward the center of the marking zone CZ, the high point position HP is also located at a 45° angle toward the center of the test zone BZ.

After stopping the measured tire T in this way, the tire chuck is released and, via the lowering of the lower spindle 116, it is lowered in a non-rotating state onto a tire bearing conveyor (described later in the example) in the test zone BZ. Then, each arm 102a of each centering arm device 102, 102 on the carrier 104, 104 side in the same zone BZ
are closed and rotated to clamp the measured tire T in a fixed and immovable state. After that, Carrier 103,
103, thus moving the carriers 104, 104 via the connecting members 105, 105 toward the zones BZ, CZ. The measured tire T whose high point position has been determined by the carriers 104 and 104 side is moved and set in the marking zone CZ, and the tire to be measured T is moved and set from the standby zone AZ to the test zone BZ, respectively, while remaining fixed and immobile. It turns out.

After moving both tires T and T to zones CZ and BZ in this way, the carriers 103, 103, 104,
After releasing each arm 102a, 102a of each centering arm device 102 on the 104 side and releasing the grip between both tires T, T, the carrier 103,
104 again centering arm device 102,1
Along with 02, standby zone AZ, test zone BZ
to retreat. The above-mentioned work is performed on the measured tires T transported to the test zone BZ, and the measured tires T transported from the test zone BZ to the marking zone CZ are
High point position by marking device 101
Marks are placed on the HP in parallel and at the same time. During this time, the next tire to be measured is also fixedly held in the standby zone AZ.

The high point marks in the marking device 101 are set on the exit conveyor 114 in the marking zone CZ by setting the elevating frame 4, which is provided on the slide frame 3 so as to be movable up and down along the guide rod 36, in FIGS. 6 and 7. lower it toward the sidewall surface of the measured tire T. A limit switch 65 provided on the tape support guide 5 side as shown in FIG.
to stop it at a predetermined position. Lifting frame 4
The marking bracket 6 rotatably held is rotated. The marking pin 14 for a desired high point is directly opposed to the pin head protruding hole 5a, which is the hitting position of the tape support guide 5, as shown in FIG. The piston rod of the drive cylinder 59, which is a pushing member installed on the bracket 93 of the guide 5, is lowered. Hammer 3 at the tip of the same rod
7 to press down the pin guide 13 of the marking pin 14. By causing the pin head 14a to protrude from the pin head protrusion hole 5a, the marking tape 25 on the tape guide surface 5b can be moved onto the tire T.
At the high point position HP on the sidewall surface of
The contact is made by pressing the pin head 14a. When the pin head 14a is pressed and held (for about 4 seconds), the paint on the marking tape 25 is melted by the heat of the heating marking pin with a built-in heater, and the pin head 14a is
The high point mark shape can be attached to the high point position HP on the sidewall surface without error and without fear of misalignment.

After the marking point is completed, the marking pin 14 is automatically retracted by the pulling up of the piston rod of the drive cylinder 59 and the spring 54, and at the same time, the marking tape 25 is wound up one pitch by the rotation of the winding section 42, and the lifting frame is 4, the measured tire T marked with a high point mark can be carried out freely and transferred to the exit conveyor 11.
It will be carried out of the machine by the drive of step 4.

After carrying out this measured and marked tire T,
The measured tires T in the test zone BZ and the tires to be measured T in the standby zone AZ,
The movement to the marking zone CZ and the movement to the test zone BZ will be repeated as described above.

In the marking device 101, a tilt frame 2 is tilted about a pivot 10 as a fulcrum, and a lift frame 4 is supported so as to be raised and lowered by a slide frame 3 which is held by the frame 2 so as to be able to move forward and backward in the direction of arrow XX. Therefore, marking pin 14-2
The marking bracket 6 holding the marking bracket 1 is provided so as to be able to tilt and move forward and backward toward the sidewall surface for the hitting point of the measured tire T.
The angle and position of the hitting point are adjustable. Therefore, in response to the size of the tire T, the shape and width of the sidewall surface, marks can be made at the most appropriate position, including the vicinity of the bead of the tire T, at an appropriate striking angle. In addition, since a plurality of marking pins 14 to 21 are arranged at equal positions on the circumference of the marking bracket 6, the exit conveyor 114
A large number of marking pins can be installed as a marking device by using the open upper surface of the marking device. In addition to the high point mark, in this type of tire uniformity machine, markings of so-called grade marks for grade classification determined comprehensively from test results are applied to marking pins 15 to 15 other than high point marking pin 14. 21, in this marking zone CZ, after hitting the high point mark, the player can freely hit the ball.

That is, the marking bracket 6 can be arbitrarily rotated before hitting the marking point, and the marking pin to be hit can be set squarely at the pin head protruding hole 5a position, which is the hitting point.The grade mark is placed on the tire sidewall surface. Since it is possible to mark any position, after the high point mark is hit, the position of the hit point can be freely selected.

That is, in contrast to the conventional method of obtaining non-uniformity high point positions specified based on the required measurement results within the test zone and marking high point marks using a marking device installed within the test zone, the test zone A waiting zone is provided in front of the tire, and a centering arm device is provided to hold the tire to be measured and the tire that has been measured in a fixed and immovable state. By taking care not to shift and transporting it to the marking zone CZ by the centering arm device and marking the high point mark here, testing work and marking work can be done simultaneously at different positions, thereby reducing cycle time. Shorter time and improved work efficiency can be obtained. Moreover, the marking device 101 provided on the exit conveyor side is
A larger number of marking pins can be prepared by utilizing the open upper surface of the exit conveyor 114 for those placed within the test zone. In addition, a movement mechanism that can tilt and move forward and backward can be freely designed, and marking can be freely performed on a wide range of surfaces from near the bead to the upper side of the tire sidewall surface, and the amount of marking tape held can be increased. This makes it easy to replace them and to make large adjustments to the hitting point position and angle.

(Effects of the Invention) According to the present invention, since the carrying device is provided with a holding means that removably engages with the tire to be measured and transports the tire while maintaining the centering state, the tire to be measured is held in the centering state by the measuring device. can be transported to.

In addition, a holding means is provided in the carrying-out device to carry out the measured tires from the measuring device without shifting the phase difference, mark them at a different position, and carry the tires in by the carrying-in device in conjunction with the tire carrying-out. With this configuration, the high point marking work can be performed in parallel with the measuring work, thereby shortening the cycle time.

Furthermore, since the marking device is provided at a separate location from the measuring device, the degree of freedom in designing the marking device is improved.

Further, according to the present invention, there is provided a carry-in device having a holding means that removably engages with the tire to be measured and transports the tire while maintaining the centering state, and a carrying device that removably engages with the tire to be measured and holds the tire in a non-rotating state. Since the carrying-out device having the holding means for holding and transporting the container is connected by the interlocking connecting means, the carrying-in and carrying-out operations are performed simultaneously, and the cycle time can be shortened.

That is, in the conventional system, the position regulating mechanism required two operations of closing and opening the centering arm at the measurement position, but in the present invention, the centering arm reaches the measurement position in the closed state and performs the same operation. Since only the opening operation is required at the position, the cycle time can be shortened.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention. Figure 1 is a plan view of the entire tire uniformity machine using the system of the present invention, Figure 2 is a front view of the same, Figure 3 is a side view of the same, and Figure 4 is a diagram of the same. A plan view of the centering arm device showing the main parts of the system, FIG. 5 is a front view of the same, FIG. 6 is a side view of the marking device, FIG. 7 is a front view of the same, and FIG.
The figures are a cross-sectional view taken along the line A-A in FIG. 4, a cross-sectional view taken along the line B-B in the same figure, FIG. The figure is a plan view of the same entrance conveyor embodiment, FIG. 13 is a front view of the same, FIG. 14 is a plan view of the same test zone conveyor embodiment, and
5 is a front view of the same, FIG. 16 is a side view of the same, FIG. 17 is a sectional view taken along line B-B in FIG. 14, FIG. 18 is a sectional view taken along line C-C in FIG. The plan view and FIG. 20 are the same front views. 101...Marking device, 102...Holding means, 103...Carry-in device, 104...Carry-out device,
105... Interlocking connection means.

Claims (1)

[Scope of Claims] 1. A measuring device for measuring tire uniformity, a carrying-in device for carrying tires to be measured into the measuring device, a carrying-out device for carrying out measured tires from the measuring device, and a measuring device for carrying out measured tires from the measuring device. In a tire uniformity machine equipped with a marking device that marks the measurement result on the surface of a measured tire, the loading device includes a holding means that removably engages with the tire to be measured to maintain a centered state and transport the tire. The unloading device has a holding means that removably engages with the measured tire to hold the tire in a non-rotating state and transports the tire, and the marking device allows the unloading device to unload the measured tire. and the carrying-in device and the carrying-out device are coupled by an interlocking connection means so as to carry in the tires to be measured and carry out the measured tires at the same time. Tire uniformity machine.