JPH1054782A - Rim replacing device in tire uniformity measurement - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the equipment cost by perfectly automating the supply of upper and lower rims to a measuring device and the recovery of the rims after use to the supplying place. SOLUTION: An empty pallet 5 on a rising and lowering rim storage shelf 61 is transferred from a placing conveyor 62 having the same height as a transfer conveyor 20 onto a centering block 21 by a transfer device 70, and transferred to a measuring block 22. In the measuring block 22, the pallet 5 is stopped in a position passed through the center part, so that an upper rim 3 is put on a lower rim 4 and supported thereby. During this, the roller of the measuring block 22 is reversely rotated to return the pallet 5 in stopping to the center. The upper and lower rims 3, 4 are transferred to the following carrying block 23 in the state placed on the pallet 5 and stopped in a prescribed position, and the pallet 5 is pushed to the inside by a transfer cylinder on the side, and transferred onto a table 74a waiting at the same height. The table 74a is lowered to the same height as a rim carrying conveyor 75, the upper and lower rims 3, 4 are transferred to the rim carrying conveyor 75 together with the pallet 5, and carried to the rising and lowering rim storage shelf 61.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for exchanging a rim for rotatably supporting a tire in tire uniformity measurement.

[0002]

2. Description of the Related Art A tire uniformity measuring apparatus presses a rotating drum as a substitute road surface having a flat surface against a tire to be measured attached to a rotating shaft, and generates three-axis force components generated when the tire rotates. Is measured. The rotating shaft is in the middle of the tire transfer line, is supported by upper and lower rims, and the rotating drum is located on the side.

[0003] If the type of tire is different, the size of the upper and lower rims that support the tire on the rotating shaft also differs, and the rim must be replaced as necessary. Regarding the rim supply method, there is an example proposed in Japanese Patent Application Laid-Open No. H6-254989, and the like, in which a loading conveyor having a plurality of shelves arranged vertically is provided so as to be able to move up and down along a transfer conveyor. so,
Upper and lower rims of different sizes are placed on each placing conveyor.

If the loading conveyor on which the required upper and lower rims are placed is set to the same height as the transfer conveyor, the required upper and lower rims can be easily loaded onto the transfer conveyor. . As described above, by changing the height by moving the loading conveyor up and down, it is possible to selectively supply rims having different sizes.

[0005]

However, there is no description about the recovery of the rim after use due to replacement, and the rim is manually performed. That is, an operator must take out the upper and lower rims removed from the rotating shaft and store them in a predetermined place or place them again on a predetermined placing conveyor, which requires labor.

In addition, one rim supply device must be provided for each tire uniformity machine, which increases equipment costs. The present invention has been made in view of such a point, and a purpose thereof is to automatically collect not only the upper and lower rims to the tire uniformity measuring device but also the used rims to a place where the original rim can be supplied. The present invention is to provide a rim changing device in tire uniformity measurement which can be fully automated and can reduce equipment cost.

[0007]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention relates to a tire which is performed by pressing a rotating drum against a tire to be measured rotatably supported by upper and lower rims attached to a rotating shaft. In the rim changing device for uniformity measurement, an elevating rim that is disposed on the upstream side along a transfer conveyor that performs the measurement while transferring the tire to be measured and that can store the upper and lower rims in a pair of upper and lower shelves and can move up and down A storage shelf, a table lifter disposed downstream along the transfer conveyor, a rim transport unit disposed between the elevating rim storage shelf and the table lifter, and Upstream transfer means for transferring the upper and lower rims to a transfer conveyor, and downstream transfer means for transferring the upper and lower rims from the transfer conveyor to the table lifter And a rim exchange apparatus tire uniformity measurement with the.

[0008] Upper and lower rims of different sizes are placed on each shelf of the elevating rim storage shelf, the elevating rim storage shelf is raised and lowered, and the required rim shelf is set at the same predetermined height as the transfer conveyor, and upstream. The required rim can be transferred from the shelf to the transfer conveyor by the side transfer means, and it can be used for uniformity measurement. Is transferred onto the table lifter by the downstream transfer means, descends, is conveyed to the elevating rim storage shelf by the rim conveying means, and is placed on a predetermined shelf of the elevating rim storage shelf set at a predetermined height. be able to.

It is possible to completely automate the supply of the upper and lower rims to the tire uniformity measuring device and the recovery of the used rims to the original supply place after use.

The tire uniformity according to claim 1, wherein the transfer conveyor is arranged in parallel with two lines, and the lifting rim storage shelf, the table lifter, and the rim transfer means are arranged between the transfer conveyors on the two lines. By using the rim exchange device for measurement, installation space can be reduced.

3. The rim exchanging device in the tire uniformity measurement according to claim 2, wherein the two left and right transfer conveyors share the set of the lifting rim storage shelf, the table lifter, and the rim transport means. Each set of rims used for tire uniformity measurement on the conveyor can be replaced by a single set of rim replacement devices, which can reduce equipment costs and installation space.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to FIGS. FIG. 2 is a partially omitted plan view of the tire uniformity measuring device 1 according to the present embodiment, and first, the tires 2 to be measured are carried into the tire identification device 11 one by one from a stock conveyor 10 at an upstream end.

In the tire identification device 11, the tire 2 is rotated about a vertical axis, and a barcode identification sheet attached to the sidewall of the tire is read by a barcode reader 11a to input information on the tire. At the same time, the silicone thinner is applied to the bead portion of the tire by the lubricant applicator 11b. The silicone diluent ensures a smooth and secure fit between the tire and the rim.

A sorting device downstream of the tire identification device 11
The tilting plate 12a on which the tire 2 is placed tilts left and right and also tilts forward, so that the tire 2 can be distributed to one of three directions.

When there are two types of tires to be measured, the tires are sorted to the left or right by judging from the tire information input in the tire identification device 11, and the bar code cannot be read or is unscheduled. When tires are brought in, they are sorted forward.

When measuring only tires of the same kind, tires with unreadable barcodes or unscheduled tires are sorted forward and alternately left and right. The tires distributed to the front are tilted
One of the left and right tilts of the tilting plate 13a caused the barcode unreadable tire to roll out,
On the other side, unplanned tires start rolling.

The tires distributed to the left and right from the distribution device 12 are moved in two right and left parallel transfer conveyors 20 by curved roller conveyors 14 for changing the traveling direction to a right angle.
Conveyed to any of 20. Left and right transfer conveyors 20, 20
Have a symmetrical structure with a predetermined space between them, and a part of the rim exchange device is disposed in the long space between the two.

Since the left and right transfer conveyors 20 are symmetrical,
One will be described below. The transfer conveyor 20 is composed of a centering block 21, a measuring block 22, and a transport block 23 in this order from the upstream side, and each block is configured by a roller conveyor.

Referring to FIGS. 1 and 2, in the centering block 21, a plurality of transport rollers are rotated at a constant speed by a motor 21a, and a pair of stoppers 21b, 21b and centering arms 21c, 21c are swingable left and right. The stoppers 21b, 21b stop the transported tire 2 and center the tire 2 by sandwiching the tire 2 from the left and right with the centering arms 21c, 21c, and thereafter position the tire 2 to advance at a predetermined center position.

In the measurement block 22 at the next stage, a plurality of rollers are rotated at a constant speed by a motor 22a, and the rollers can rotate forward and reverse, and can be transported upstream. This measurement block
A pair of left and right positioning arms 22b, 22b are provided on the 22 so as to be swingable back and forth at predetermined positions, and the tire is positioned by the four positioning arms 22b for convenience. When the tire 2 is positioned in the measurement block 22 in this way, the center axis of the tire 2 oriented in the vertical direction is the upper and lower rim axes 25,
Matches 26.

The tire 2 positioned on the measuring block 22
The roller at the portion for supporting the roller has a short axis divided into right and left, and forms an air gap at the center of the tire. An upper rim shaft 25 is suspended above the gap, and an upper rim 3 is
The lower rim 4 is detachably attached to the upper end of the lower rim shaft 26 coaxially below.

The lower rim shaft 26 can be moved up and down, and the lower rim 4 attached to the upper end can vertically penetrate the gap created by the short-axis transport roller. On the other hand, upper rim shaft 25
Is rotatably supported by a support frame 30 provided between the left and right measurement blocks 22, 22, and a driven pulley 25a is fitted to a portion protruding upward (FIGS. 2, 3).
reference).

A servo motor 31 is fixedly supported by brackets provided on the right and left central portions of the support frame 30.
As shown in FIGS. 2 to 4, a drive shaft 31 a projecting below the servo motor 31 has two drive pulleys 32, 33 on the upper and lower sides.
Are mounted via a clutch, respectively, and the upper drive pulley 32 and the left side (the right side in FIG. 3)
A timing belt 34 is bridged between the driven pulleys 25a of the measurement block 22, and a timing belt 35 is bridged between the lower drive pulley 33 and the driven pulley 26a of the right measurement block 22.

Accordingly, the left and right upper rim shafts 25 and 26 can be rotated via the timing belts 34 and 35 by the drive of the servo motor 31. At this time, only one of the timing belts is rotated by disengagement of the clutch. Either upper rim axis can be selectively rotated.

Below the center of the support frame 30, there is provided a rectangular frame 41 which is a holding member slidably to the left and right, guided by four rails 40 laid in front and rear and up and down in the horizontal direction. The rotary drum 42 is supported on the rectangular frame 41 by a vertical support shaft 42a.

As shown in FIG. 4, the rectangular frame 41 has a rectangular shape with upper and lower side walls and front and rear side walls and is slidable left and right in a posture where the left and right sides are opened. Are rotatably supported so as to protrude from the left and right openings.

A hydraulic cylinder 43 is suspended from the support frame 30 on the side of the upper side wall of the rectangular frame 41 (see FIG. 3).
The tip of the cylinder rod 43a of the hydraulic cylinder 43 is fixed to the side wall of the rectangular frame 41, and the rectangular frame 41 slides right and left together with the rotary drum 42 by expansion and contraction of the cylinder rod 43a of the hydraulic cylinder 43. The upper and lower side walls of the rectangular frame 41 are supported by the front and rear side walls, so that the rotary drum 42 can be pivotally supported with sufficient structural rigidity and strength.

A load cell 45 is provided on a bearing portion of a support shaft 42a which supports the rotary drum 42, and the magnitude of a radial force variation RFV (Radial Force Var) of the tire in the radial direction is provided.
), and the magnitude of lateral force variation (axial direction) of the tire, such as LFV (Lateral Force Variation), is detected. In addition, a marking device 27 is suspended from the measurement block 22 at a predetermined position above the roller conveyor.

The above measuring block in the transfer conveyor 20
The transport block 23 at the next stage of 22 is an inclined roller conveyor, and the tire 2 and the like are transported by its own weight. A stopper 23a is provided at a predetermined position near the downstream end so as to be freely retractable.

On the downstream side of the above-mentioned transfer conveyor 20, a sorting conveyor 50 is disposed long in the left and right width direction so as to be continuous with the left and right transfer conveyors 20, 20, and extends from the left and right transfer conveyors 20, 20. Roller conveyors 51, 51, and three rows of roller conveyors 52 sandwiched between the two roller conveyors 51, 51 are inclined to transport the tire 2 to the downstream side by its own weight.

A plurality of ropes which can move up and down between rollers of the roller conveyors 51, 52, 51 so as to be able to move up and down are bridged in the left-right direction to form a rope conveyor 53. Therefore, the tire 2 transported from the transfer conveyor 20
If the rope conveyor 53 remains in the lowered state, the roller conveyor 51 is linearly conveyed and carried out, but when the rope conveyor 53 rises at an appropriate timing, the tire is supported by the rope conveyor 53, and The rotation of the rope conveyor 53 allows the tire 2 to move left and right.

When the rope conveyor 53 is lowered at the place where it has moved appropriately, it is transferred to one of the roller conveyors 52, 51 and is carried out by the transferred roller conveyors 52, 51. When the tire 2 is moved in one of the left and right directions by the rope conveyor 53 beyond the end, the tire 2 can be carried out in either the left or right direction. Therefore, as shown by arrows in FIG. 1, the tires 2 can be distributed to five places on the distribution conveyor 50 and carried out.

The general structure of the tire uniformity measuring device 1 has been described above. The tire uniformity measuring device 1 is provided with a rim changing device 60 for automatically changing the rims 3 and 4. The space between the left and right transfer conveyors 20, 20 is used for the rim exchange device 60, and the space between the centering blocks 21, 21 is provided with an elevating rim storage shelf 61.

As shown in FIG. 5, the elevating rim storage shelf 61 is a long box in the up-down direction, but is opened at the front and left and right sides, and four shelves are placed inside the conveyor. It is formed by 62. Each loading conveyor 62 has a motor
Each roller is rotated at a constant speed by the belt 63.

A slider 64 is provided on the back plate of the lifting rim storage shelf 61.
A slider 64 is slidably fitted to the standing support rail 65 to support the lifting rim storage shelf 61 so as to be able to move up and down, and a screw shaft 66 is provided in the support rail 65 in the vertical direction. And is screwed to the slider 64 and penetrated therethrough.

The screw shaft 66 is rotated via a timing belt 68 by a motor 67 fixed to the lower end of the support rail 65. The rotation of the screw shaft 66 causes the lifting rim storage shelf 61 to move up and down via a slider 64. .

The upper and lower rims 3 and 4 are placed on a plate-like pallet 5 in a state of being vertically stacked and conveyed, or placed on each placing conveyor 62 of a lifting rim storage shelf 61. The pallet 5 has a rectangular plate shape with reference to FIG.
At the center is formed a circular hole 5a smaller than the outer diameter of the lower rim 4 but larger than the outer diameter of the lower rim shaft 26, and a notch 5b extending from one side to the circular hole 5a. As shown in FIG. 5, an empty pallet 5 on which the upper and lower rims 3 and 4 are not placed is also placed on the placing conveyor 62 described above.

The elevating rim storage shelf 61 controls the elevating and lowering so that each mounting conveyor 62 can be set at the same height as the rollers of the centering block 21. A transfer device 70 is arranged outside each of the centering blocks 21 and 21 (FIG. 1).
The transfer device 70 includes a cylinder 71 and a holding arm 72 provided at the tip of a cylinder rod that expands and contracts.

The transfer device 70 extends the cylinder rod to go to the upper and lower rims 3 and 4 on the loading conveyor 62 of the lifting rim storage shelf 61 which is at the same height as the rollers of the centering block 21, and holds the holding arm 71. Can be transferred onto the rollers of the tension centering block 21 with the pallet 5 on which the upper and lower rims 3 and 4 are placed.

On the other hand, a table lifter 74 is provided between the transport blocks 23, 23 of the left and right transfer conveyors 20, 20, and the table 74a which moves up and down is formed by a roller conveyor. The predetermined rising position of the table 74a is a position slightly lower than the rollers of the transport block 23.

Between the table lifter 74 and the elevating rim storage shelf 61, a rim transport conveyor comprising a roller conveyor is provided.
The rim transfer conveyor 75 is provided at a position lower than the left and right transfer conveyors 20, 20, and each roller is rotated at a constant speed by a motor 75a (see FIG. 2). The predetermined lowering position of the table 74a of the table lifter 74 is the same height position as the rim transport conveyor 75.

The transport blocks of the left and right transfer conveyors 20, 20
A transfer cylinder 76 is disposed outside each of the transfer cylinders 23, and the extendable cylinder rod of the transfer cylinder 76 faces inward, and a distal end forms a pressing bar 76a.

The transfer cylinder 76 extends the cylinder rod, and the pressing bar 76a pushes the pallet 5 on the roller of the centering block 21 to move the pallet 5 on the table 70a at the position where the table lifter 70 is raised. , 4
Together or only the pallet 5 can be transferred.

The present tire uniformity measuring apparatus 1 includes the rim changing device 60 as described above. The operation procedure of the tire uniformity measuring device 1 and the rim changing device 60 will be described below.

Initially, predetermined upper and lower rims 3 and 4 are mounted on the upper and lower rim shafts 25 and 26 of the left and right measurement blocks 22 and 22, respectively. An empty pallet 5 is also stored while being stored on the pallet 5.

The tire 2 carried in from the stock conveyor 10 is first identified by reading a bar code in the tire identification device 11, and at the same time, the bead portion is coated with the silicone thinning liquid, and is moved to the sorting device 12.
Tires that cannot be identified or tires having a size other than the predetermined size are dropped forward and discharged, and the other tires are sorted to the left or right according to the identified size. In the case where the same type of tire is subjected to uniformity measurement in the left and right measurement blocks, the incoming tire may be sequentially and alternately distributed to the left and right.

The sorted tire 2 changes its direction by the curved roller conveyor 14 and enters the centering block 21 of the transfer conveyor 20, where it is centered left and right by a pair of centering arms 21c, 21c.
It is transferred to the measurement block 22 at a predetermined timing by b and 21b.

In the measuring block 22, the tire 2 is positioned by the front, rear, left and right positioning arms 22a, the lower rim shaft 26 located below is raised, and the lower rim 4 mounted on the upper end supports the bead portion of the tire 2. The upper rim 3 mounted on the upper rim shaft 25 waiting above receives the bead portion of the tire 2, the upper and lower rims 3 and 4 are engaged, and the tire 2 has a predetermined height (rotary drum). (Same height as 42). Then, air is supplied into the tire to have a predetermined internal pressure.

The rotary cylinder 42 is moved by driving the hydraulic cylinder 43 and pressed against the tire 2 at a predetermined pressure. Servomotor
31 drives the timing belts 34, 35 via the clutch.
To rotate a predetermined upper rim shaft 25 to rotate the tire 2. The rotating drums 42 rotate together.
First, after performing a rotation for several rotations, uniformity measurement is performed by reverse rotation, and then measurement is performed by forward rotation.

The uniformity measurement is performed over the entire circumference of the tire by the detection by the load cell 45. The result detected by the load cell 45 is processed by the computer, the uniformity measurement value is calculated, and the tire evaluation is performed based on the measurement result such as RFV and LFV. Done. One measuring block
When the uniformity measurement is performed at 22, the other measuring block 22 can perform operations such as mounting of the tire 2 by the upper and lower rims 3 and 4 at the same time, and the work efficiency is good.

In the uniformity measurement, in particular, a tire location showing the maximum value of RFV is marked by the marking device 27. Drive control of the servo motor 31
When the tire location showing the maximum value of FV rotates to a predetermined position (for example, the most downstream side), the rotation of the tire 2 is stopped so that the marking device 27 can mark the designated position. It has become.

When the measurement is completed, the rotary drum 42 returns to its original state, the internal pressure of the tire 2 is released, the lower rim shaft 26 descends, and the tire 2 is placed on the rollers of the measurement block 22 and transferred to the transport block 23. I do. The tire 2 transported by the rollers of the transport block 23 moves to the distribution conveyor 50, where the tire 2 is discharged from any of the five discharge locations according to the evaluation by the uniformity measurement.

The left and right measurement blocks 22, 22 of the two-line transfer conveyors 20, 20 share one rotary drum 42, and one of the measurement blocks 22 performs measurement using the rotary drum 42. At the same time, the tire 2 can be attached to and detached from the upper and lower rims 3 and 4 by the other measurement block 22, and the uniformity measurement operation can be performed efficiently.

The upper and lower rims 3 and 4 mounted on the upper and lower rim shafts 25 and 26 of the measurement block 22 are connected to the left and right measurement blocks 22 and 22 respectively.
, Two types of tires can be measured at the same time. The configuration is such that one servomotor 31 rotates the left and right upper rim shafts 25, 25, so that the apparatus is simplified and the equipment cost is reduced.

Next, the rim replacement operation will be described. First, the empty pallets 5 stored in the lifting rim storage shelf 61
Is transferred onto the rollers of the centering block 21 by the transfer device 70 from the placing conveyor 62 having the same height as the transfer conveyor 20, and after being centered, is transferred to the measurement block 22.

In the measuring block 22, the pallet 5 is stopped once it has passed through the center portion, the lower rim shaft 26 is raised, the lower rim 4 is engaged with the upper rim 3, and the upper rim 3 is connected to the upper rim shaft.
It is detached from 25 so that it is supported on the lower rim 4 in an overlapping manner. During this time, the rollers of the measuring block 22 are rotated in the reverse direction to return the pallet 5 stopped on the downstream side to the center.

Since the pallet 5 has the notch 5b on the upstream side, the pallet 5 comes to a position where the lower rim shaft 26 passes through the center circular hole 5a and stops. Then, the lower rim shaft 26 is lowered, and the lower rim 4 is detached from the lower rim shaft 26 when the lower rim 4 is placed on the pallet 5.

The upper and lower rims 3 and 4 are placed on the pallet 5 and are transferred to the next transport block 23 in this state, stopped at a predetermined position by the protrusion of the stopper 23a, and disposed laterally. The pallet 5 is pushed inward by the transfer cylinder 76 and is transferred to the table 74a of the table lifter 74 waiting at the same height.

When the table 74a is lowered to the same height as the rim transport conveyor 75, the upper and lower rims 3, 4 are moved to the rim transport conveyor 75 together with the pallet 5 and transported to the lifting rim storage shelf 61. In the elevating rim storage shelf 61, the placing conveyor 62 of a predetermined shelf in the empty state is set at the same height as the rim transport conveyor 75, so that the upper and lower rims 3 transported by the rim transport conveyor 75 4 can be stored on the placing conveyor 62 together with the pallet 5.

The above is the work of removing and collecting the used upper and lower rims 3 and 4, but this work and the timing of the timing are somewhat delayed to supply and mount the new upper and lower rims 3 and 4. That is, the empty pallet 5 is placed on the rim storage shelf
After being unloaded from the 61, the new upper and lower rims 3, 4 stored in the elevating rim storage shelf 61 at an appropriate time are transferred to the transfer conveyor 20 by the transfer device 70 together with the pallet 5 and used. The upper and lower rims 3 and 4 are removed and transferred to the measurement block 22.

In the measuring block 22, when the new upper and lower rims 3, 4 and the pallet 5 are located at the center position and the lower rim shaft 26 is raised, the lower rim shaft 26 passes through the circular hole 5a of the pallet 5 and moves downward. The rim 4 is supported and mounted, and the upper rim 3 is further raised while the upper rim 3 is superimposed on the lower rim 4 so as to abut the upper rim shaft 25 positioned above and mounted.

The pallet 5 remaining on the rollers during this time is transferred to the transport block 23. Although the lower rim shaft 26 penetrates the circular hole 5a of the pallet 5, the notch 5b faces the upstream side, so that the pallet 5 can be removed from the lower rim shaft 26 and moved downstream without any trouble.

When the lower rim shaft 26 is moved down after the pallet 5 is moved to the transport block 23, the upper rim 3 remains attached to the upper upper rim shaft 25, and the lower rim 4 becomes the lower rim shaft.
It is positioned below the rollers with the device mounted on 26, and is in a state of waiting for tire attachment.

The empty pallet 5 transferred to the transfer block 23 is transferred to the table 74a of the table lifter 74 by the transfer device 76, transferred from the lowered table 74a to the rim transfer conveyor 75, and transferred to a predetermined position. Is stored in the loading conveyor 62 of the elevating rim storage shelf 61 set at a height of

As described above, the work of removing and collecting the used upper and lower rims 3 and 4 and the work of supplying and attaching the new upper and lower rims 3 and 4 can be performed fully automatically and efficiently.

A lifting / lowering rim storage shelf 61, a table lifter 74, a rim transfer conveyor 75, and the like are provided by utilizing the space between the two-line transfer conveyors 20, 20 of the tire uniformity measuring apparatus 1, and are shared by the left and right uniformity measurement. This can reduce equipment costs and installation space.

[Brief description of the drawings]

FIG. 1 is a partially omitted plan view of a tire uniformity measuring device according to an embodiment of the present invention.

FIG. 2 is a side view of the same.

FIG. 3 is a front view as seen from a downstream side of a measurement block.

FIG. 4 is a perspective view of a main part of a measurement block partially omitted.

FIG. 5 is a perspective view of a main part of the rim changing device, partially omitted.

[Explanation of symbols]

1 ... tire uniformity measuring device, 2 ... tire, 3 ...
Upper rim, 4 ... Lower rim, 5 ... Pallet, 10 ... Stock conveyor, 11 ... Tire identification device, 12 ... Sorting device, 13 ... Falling port, 14 ... Curve roller conveyor, 20 ... Transfer conveyor, 21
... Centering block, 22 ... Measurement block, 23 ... Transport block, 25 ... Upper rim axis, 26 ... Lower rim axis, 27 ... Marking device, 30 ... Support frame, 31 ... Servo motor, 32
… Upper drive pulley, 33… lower drive pulley, 34,
35 ... timing belt, 40 ... rail, 41 ... rectangular frame, 42
... Rotary drum, 43 ... Hydraulic cylinder, 45 ... Load cell, 50
... sorting conveyor, 51, 52 ... roller conveyor, 53 ... rope conveyor, 60 ... rim exchange device, 61 ... lifting rim storage shelf,
62 ... Placement conveyor, 63 ... Motor, 64 ... Slider, 65 ...
Support rail, 66: screw shaft, 67: motor, 68: timing belt, 70: transfer device, 71: cylinder, 72: clamping arm, 74: table lifter, 75: rim transport conveyor, 76
... Transfer cylinder.

Claims (3)

[Claims] An apparatus for exchanging rims in tire uniformity measurement performed by pressing a rotating drum against a tire to be measured rotatably supported by upper and lower rims attached to a rotating shaft, wherein the tire to be measured is transferred during the transfer. An elevating rim storage shelf that is disposed upstream along the transfer conveyor that performs the measurement and that can store and move the pair of upper and lower rims in a pair of upper and lower shelves, and a table lifter that is disposed downstream along the transfer conveyor Rim transport means disposed between the elevating rim storage shelf and the table lifter; upstream transfer means for transferring upper and lower rims from the elevating rim storage shelf to the transfer conveyor; Rim for tire uniformity measurement, comprising: downstream transfer means for transferring the upper and lower rims from the table lifter to the table lifter. Conversion apparatus. 2. The transfer conveyor is disposed in parallel with two lines, and the lifting rim storage shelf is located between the transfer conveyors on the two lines.
2. The rim changing device according to claim 1, wherein the table lifter and the rim conveying unit are provided. 3. The rim changing device in tire uniformity measurement according to claim 2, wherein the two left and right transfer conveyors share the set of lifting rim storage shelves, table lifters, and rim transport means.