JPH06254989A - Method and apparatus for supplying rim to tire uniformity machine - Google Patents

Abstract

PURPOSE:To easily supply upper and lower rims of a desired kind to a tire uniformity machine along with a palette within a short time. CONSTITUTION:After the lift frame 22 supporting a placing conveyor 27 is raised by predetermined quantity, the placing conveyor 27 having the same height as a transfer conveyor 36 is operated to make it possible to feed upper and lower rims 30, 31 of a desired kind and a palette 32 to the transfer conveyor 36. Therefore, the upper and lower rims 30, 31 can be easily supplied to a tire uniformity machine within a short time.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for supplying upper and lower rims to a tire uniformity machine.

[0002]

BACKGROUND OF THE INVENTION The present applicant has previously filed Japanese Patent Application No. 4-2447.
No. 9 (January 14, 1992), the process of raising the lower rim until it contacts the upper rim from below by moving the lower spindle of the tire uniformity machine upwards, and the tire for the uniformity test By carrying the empty pallet by the conveyor to be conveyed, while carrying in to the intersecting position where the elevator path of the lower rim and the conveyor intersect, the step of separating the upper rim from the upper spindle, and by moving the lower spindle downward,
The steps of lowering the upper and lower rims integrally and transferring both the upper rim and the lower rim detached from the lower spindle from the lower spindle to an empty pallet during the lowering, and the operation of the conveyor, Carrying out the pallet with the side rim transferred from the intersecting position, and carrying in a new pallet with the upper and lower rims mounted to the intersecting position, and moving the lower spindle upward and moving the pallet. On the way, the steps of transferring the upper and lower rims from the pallet to the lower spindle, and further moving the lower spindle until the upper rim contacts the upper spindle to connect the upper rim and the upper spindle to each other, and
We proposed a method for exchanging rims in a tire uniformity machine that includes connecting a lower rim to a lower spindle and unloading an empty pallet from an intersecting position by operating a conveyor. Then, when carrying in the pallet on which the new upper and lower rims are placed to the intersecting position as described above, the desired types of upper, lower rim and pallet stored in the stocker on the hand cart are loaded. After the transfer, the hand cart is moved to convey the upper and lower rims and the pallet to the conveyor, and then the upper and lower rims and the pallet are collectively transferred to the conveyor, The conveyor was traveling to convey to the intersection.

[0003]

However, in such a conventional rim exchanging method for a tire uniformity machine, the desired type of upper, lower rim and pallet are conveyed by a hand cart from a stocker far from the conveyor. Since the rims and pallets are transferred to the conveyor by operating the hand cart after that, many rims and pallets are loaded on the conveyor, so that many rims and pallets can be loaded onto the conveyor. There is a problem that labor and time are required.

An object of the present invention is to provide a method and an apparatus for supplying a rim to a tire uniformity machine capable of easily supplying a desired type of upper and lower rims together with a pallet in a short time.

[0005]

[Means for Solving the Problems]
, The pallets on which the lower rims of different types are placed on each stage are collectively lifted up and down the plurality of stages of loading conveyors on which the pallets are placed. The step of matching the placement conveyor of the pallet on which the pallet is mounted with the height of the transfer conveyor, and the above-mentioned desired type, by operating the placement conveyor on which the lower rim is placed, on the desired type, A tire uniformity including a step of transferring the lower rim together with the pallet onto a transfer conveyor, and a step of transferring the lower rim together with the pallet together with the pallet onto the tire uniformity machine between a lower spindle and a lower spindle by a transfer conveyor. Secondly, depending on the method of supplying rims to the machine, a lifting frame that can be raised and lowered and a pad that is supported by the lifting frame separately in the vertical direction and have different types of upper and lower rims are mounted on each stage. A horizontal mounting conveyor plurality of stages of Tsu bets are placed, it is installed in front of the lift frame,
A rim supply device for a tire uniformity machine equipped with a transfer conveyor that transfers upper and lower rims and pallets transferred from the placement conveyor to a lifting conveyor located between the lower and upper spindles of the tire uniformity machine. Can be achieved by

[0006]

Now, it is assumed that pallets having different types of upper and lower rims are placed on each stage of the placing conveyor supported by the elevating frame. Next, the elevating frame is raised together with the loading conveyors of a plurality of stages so that the loading conveyor on which the pallet having the desired upper and lower rims is placed matches the height of the transfer conveyor. . Next, the mounting conveyor on which the upper and lower rims of the desired type are mounted is operated to transfer the upper and lower rims of the desired type together with the pallet to the transfer conveyor, and then the transfer A conveyor conveys the upper and lower rims of the desired type together with a pallet to the elevator conveyor between the upper and lower spindles of the tire uniformity machine, and supplies the upper and lower rims to the tire uniformity machine. After elevating the elevating frame supporting the loading conveyor by a predetermined amount in this way, simply activating the loading conveyor at the same height as the transfer conveyor, on the desired type on the transfer conveyor,
Since the lower rim and the pallet can be carried in, it is possible to easily and easily supply the lower rim of a desired type to the tire uniformity machine in a short time.

According to the third aspect of the invention, it is possible to easily and quickly collect the pallets that are no longer needed during the mounting of the upper and lower rims on the tire uniformity machine.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. In FIGS. 1, 2 and 3, reference numeral 11 denotes a pit formed on the floor surface 12 and extending in the left-right direction. In the pit 11, a pair of rails 13 extending in the left-right direction are laid.
Reference numeral 15 denotes a moving carriage, and rollers 16 rolling on rails 13 are rotatably supported at four corners of the lower surface of the moving carriage 15, respectively. 17 is a rail 13 installed in the pit 11
The cylinder 17 is parallel to the cylinder 17. The tip of the piston rod 18 of the cylinder 17 is connected to the moving carriage 15. As a result, when the cylinder 17 is operated, the moving carriage 15 moves to the rail 13
Move left and right while being guided by. The moving carriage 15
A screw shaft 20 extending in the up-down direction is rotatably supported on the shaft, and a pair of guide rods 21 parallel to the screw shaft 20 are attached to the screw shaft 20. Reference numeral 22 denotes an elevating frame to which a screw block 23 screwed to the screw shaft 20 and a guide block 24 slidably engaged with the guide rod 21 are attached. The elevating frame 22 is a motor fixed to the moving carriage 15. Rotation of 25 screw shaft 20 via timing belt 26
When the screw shaft 20 is rotated, the screw shaft 20 moves up and down while being guided by the guide rod 21. The elevating frame 22 supports a plurality of, in this case, four horizontal mounting conveyors 27 vertically separated from each other.
Is composed of a plurality of rotatable rollers 28 which are separated in the front-rear direction and extend in the left-right direction. 29 is the same number of motors as the mounting conveyors 27 attached to the elevating frame 22, and each motor 29 is a roller 28 that constitutes the mounting conveyor 27.
Are synchronized and rotated in the same direction at a constant speed. And, on these placement conveyors 27 of each stage, on different types,
A pallet 32 on which the lower rims 30, 31 are placed is placed.

A support frame 35 is installed on the floor surface 12 in front of the placement conveyor 27, and a transfer conveyor 36 is supported on the upper end of the support frame 35. The transfer conveyor 36 is composed of a plurality of rotatable rollers 37, and these rollers 37 are separated in the front-rear direction and extend in the left-right direction. And these rollers 37 are supporting frames
By the operation of the motor 38 attached to the motor 35, the motor 38 synchronously rotates at the same speed in the same direction. In addition, the above-mentioned placement conveyor 27
A post 41 is erected on the floor surface 12 further rearward, and a base end of a swing frame 42 is rotatably connected to an upper end of the post 41. Reference numeral 43 is a cylinder attached to the post 41, and a tip of a piston rod 44 of the cylinder 43 is connected to the swing frame 42. As a result, when the cylinder 43 operates, the swing frame 42 swings between a horizontal position in which the tip end thereof is supported by the upper end of the support frame 35 and a substantially vertical vertical position. A swing conveyor 45 is supported by the swing frame 42, and the swing conveyor 45 is composed of a plurality of rollers 46 extending in the left-right direction and separated in the front-rear direction. And
These rollers 46 synchronously rotate in the same direction at a constant speed by the driving force of a motor 47 attached to the swing frame 42. When the swing conveyor 45 is in the horizontal position, the lifting frame 2 is provided directly below the swing conveyor 45.
2. The placement conveyor 27 is located.

1 and 4, a tire uniformity machine 50 is installed on the floor 12 in front of the transfer conveyor 36, and the tire uniformity machine 50 has a cylinder 52 attached to the upper end of a frame 51. ing. An upper spindle 54, which is rotated by driving means (not shown), is supported at the tip of the piston rod 53 of the cylinder 52. A cylinder 55 coaxial with the cylinder 52 is attached to the lower portion of the frame 51, and a lower spindle 57 is rotatably supported at the tip of a piston rod 56 of the cylinder 55. Further, a plurality of cylinders 60, 61 which are circumferentially separated from each other are attached to the upper and lower spindles 54, 57, respectively, and piston rods 62, 63 of these cylinders 60, 61 have locking holes 64, 65.
Are formed. 66 and 67 are cylinders 6 swingably supported by upper and lower spindles 54 and 57 via pins 58 and 59.
The same number of locking claws as that of 0 and 61 are Z-shaped, and one ends of the locking claws 66 and 67 are inserted into the locking holes 64 and 65. Extrusion blocks 69, 70 are fixed to the tip end portions of the piston rods 62, 63, and these extrusion blocks 69,
When the piston rods 62 and 63 project, the 70 pushes the other ends of the locking claws 66 and 67 outward in the radial direction, and is formed on the inner surfaces of the upper and lower rims 30 and 31, respectively. Insert the other end of the locking claws 66, 67 into the annular recesses 71, 72, and
The lower rims 30, 31 are locked to the upper and lower spindles 54, 57, respectively. Here, the locking claws 66 and 67 have the same shape, and as a result, the types of parts are reduced and the manufacturing cost is reduced.

Referring again to FIGS. 1 and 2, the frame 51
The lower ends of the links 75 and 76 intersecting in an X shape are connected to
The upper ends of the links 75 and 76 are connected to a horizontal elevating frame 77 disposed between the upper and lower spindles 54 and 57 of the tire uniformity machine 50. A vertical cylinder 73 is connected to the lower end of the frame 51, and the tip of a piston rod 74 of the cylinder 73 is connected to the elevating frame 77. A lift conveyor 78 composed of a plurality of rollers 79 extending in the left-right direction and separated in the front-rear direction is supported by the lift frame 77, and the rollers 79 forming the lift conveyor 78 are motors 80 fixed to the lift frame 77. When it receives the driving force of, it rotates synchronously in the same direction at a constant speed. The elevator conveyor 78 is inclined by the operation of the cylinder 73 while the links 75 and 76 are intersecting each other, so that the elevator conveyor 78 has a receiving position at the same height as the transfer conveyor 36 while maintaining the horizontal state, and a receiving position described later. It moves up and down between the conveyor 89 and the transfer position at the same height. Further, when the elevating conveyor 78 is stopped at the receiving position, the upper rims 30, 31 and the pallet 32 transferred from the placing conveyor 27 to the transfer conveyor 36 are transferred onto the elevating conveyor 78 by the transfer conveyor 36. Are transferred to. The upper and lower spindles 5 are provided at the center of the lifting conveyor 78.
A space 81 through which the 4 and 57 pass is formed.

A support frame 83 is installed on the floor 12 in front of the tire uniformity machine 50, and a delivery conveyor 84 is provided at the upper end of the support frame 83. The delivery conveyor 84 is composed of a plurality of rollers 85 extending in the left-right direction and separated in the front-rear direction, and these rollers 85 are motors attached to the support frame 83.
The driving force of 86 rotates synchronously in the same direction at a constant speed. Further, the support frame 35 immediately below the transfer conveyor 36.
A horizontal receiving conveyor 89 is provided on the receiving side, and the receiving conveyor 89 is composed of a plurality of rollers 90 extending in the left-right direction and separated in the front-back direction. Then, these rollers 90 are attached to a motor 91 mounted on the support frame 35.
The operation rotates in the same direction at a constant speed in synchronization with the operation of. The receiving conveyor 89 includes the lifting conveyor 78.
Is lowered to the transfer position and the upper and lower rims 30 and 31 on the elevating conveyor 78 are transferred to the lower spindle 57, between the elevating conveyor 78 and the upper and lower rims 30 and 31. An empty pallet 32 is received from the elevator conveyor 78.

Next, the operation of the embodiment of the present invention will be described. Now, the tire uniformity test is completed in the tire uniformity machine 50, the upper and lower rims 30 and 31 are respectively removed from the upper and lower spindles 54 and 57, and the elevating conveyor 78 receives the same height as the transfer conveyor 36. Suppose you are stopped at a position. At this time, the swing frame 47 is stopped at the horizontal position as shown by the solid line in FIG. 1, and the different types of upper, lower rims 30, 31 and the pallet 32 are placed on each stage. The elevating frame 22 supporting the placing conveyor 27 is stopped at the lower limit. The state at this time is shown in FIG.

Next, when the upper and lower rims 30 and 31 corresponding to the tire to be subjected to the uniformity test in the tire uniformity machine 50 are attached to the upper and lower spindles 54 and 57 of the tire uniformity machine 50, first, ,
Swing frame by protruding the piston rod 44 of the cylinder 43
42. The swing conveyor 45 is swung upward from the horizontal position to the vertical position shown by the phantom line in FIG. As a result, the upper part of the placement conveyor 27 is opened, and the lifting frame 22 and the placement conveyor 27 can be raised. Next, the motor 25 is operated to rotate the screw shaft 20, and the elevating frame 22 and the plurality of stages of the mounting conveyors 27 are collectively raised along the guide rod 21. The lifting frame 22 and the loading conveyor 27 are lifted up from the loading conveyor 27 on which the pallet 32 on which the lower rims 30 and 31 are mounted, which is the desired type, is loaded. When the placement conveyor 27 at the stage matches the height of the transfer conveyor 36, it stops. The state at this time is shown in FIG.

Next, the second motor 29 from the top operates and the rollers 28 constituting the second-stage mounting conveyor 27 from the top rotate synchronously in the same direction at a constant speed.
When the rollers 80 and 80 are operated, the rollers 37 and 79 of the transfer conveyor 36 and the lift conveyor 78 rotate at the same speed as the peripheral speed of the roller 28 in the same direction and in synchronization. As a result, the upper and lower rims 30 and 31 placed on the second-stage placement conveyor 27 from the top,
Transfer conveyor 27 from pallet 32 together with transfer conveyor 27
Reprinted on page 36. In this way, the upper rims 30, 31 and the pallet 32 transferred on the transfer conveyor 36 are stopped at the receiving position between the upper and lower spindles 54, 57 on the tire uniformity machine 50 by the transfer conveyor 36. It is transferred to a predetermined position on the elevator conveyor 78. At this time, the motor 25 is operated to collectively lower the elevating frame 22 and the placement conveyor 27 to the initial position, and the cylinder 43
The piston rod 44 is retracted to return the swing frame 42 and the swing conveyor 45 from the vertical position to the horizontal position. The state at this time is shown in FIG.

Next, the piston rod 74 of the cylinder 73 is retracted to incline the links 75 and 76, and the lifting conveyor 78 is lowered while maintaining the horizontal state. Here, when the elevator conveyor 78 descends to the vicinity of the transfer position, the upper and lower rims 30 and 31 placed on the elevator conveyor 78 are transferred onto the lower spindle 57, and the upper and lower sides thereof are transferred. The descent of the rims 30, 31 stops. However, the elevating conveyor 78 is slightly lowered together with the pallet 32 until it reaches the transfer position even after the upper and lower rims 30 and 31 are transferred to the lower spindle 57. Then, when the transfer position is reached, the elevation conveyor 78 and the receiving conveyor 89 are at the same height. At the same time, project the piston rod 53 of the cylinder 52,
The upper spindle 54 is lowered to a position where the upper rim 30 can be mounted on the upper spindle 54. The state at this time is shown in FIG.

Next, the motors 80 and 91 are operated to rotate the rollers 79 of the elevating conveyor 78 and the rollers 90 of the receiving conveyor 89 synchronously in the same direction at a constant speed. As a result, the elevator conveyor 78 and the top sent out from the elevator conveyor 78,
Receives pallet 32 between lower rims 30, 31 and conveyer 89
To receive. At this time, the piston rod of the cylinder 60, 61
62 and 63 are made to project synchronously, and the pushing blocks 69 and 70 push the other ends of the locking claws 66 and 67 outward in the radial direction. As a result, the other ends of the locking claws 66 and 67 are connected to the upper and lower rims 3
Inserted in the annular recesses 71, 72 of 0, 31, the upper and lower rims 3
0 and 31 are locked to the upper and lower spindles 54 and 57, respectively. Next, the piston rod 53 of the cylinder 52 retracts, the upper rim 30 attached to the upper spindle 54 sends out and rises to a standby position above the conveyor 84, and the piston rod 74 of the cylinder 73 projects and the elevating conveyor 78.
Moves up to a receiving position at the same height as the transfer conveyor 36.
The state at this time is shown in FIG.

In this way, when the upper and lower rims 30 and 31 of the desired kind are mounted on the upper and lower spindles 54 and 57, respectively, of the tire uniformity machine 50, the tires for the uniformity test are delivered to the conveyor 84. Load horizontally. Next, the motors 86 and 80 are operated to send out the conveyor 84,
The lifting conveyor 78 raises the tire to the upper and lower rims 30, 31.
Transport between. Next, the piston rod 56 of the cylinder 55 is projected to raise the lower rim 31, thereby pushing up the tire mounted on the elevator conveyor 78 from below,
Attach to the upper and lower rims 30 and 31. Then the upper spindle
By rotating 54, the tire and the upper and lower spindles 54, 57 are integrally rotated, and a uniformity test is performed in this state. Then, when such a uniformity test is completed, the piston rod 56 of the cylinder 55 is retracted to lower the lower spindle 57 and the tire together, and the tire is transferred onto the lift conveyor 78 during the lowering. Next, the elevating conveyor 78, the transfer conveyor 36, and the swing conveyor 45 are operated in synchronism to discharge the tire.

As described above, the elevating frame 22 supporting the loading conveyor 27 is raised by a predetermined amount, and then the loading conveyor 27 at the same height as the transfer conveyor 36 is operated. Upper and lower rims 30, 31 desired
And the pallet 32 can be loaded so that the upper and lower rims 3 of the desired type on the tire uniformity machine 50 are
It is possible to easily supply 0 and 31 in a short time.
Further, as described above, if the pallet 32 is transferred to the receiving conveyor 89 installed immediately below the transfer conveyor 36, it becomes unnecessary during the installation of the upper and lower rims 30, 31 with respect to the tire uniformity machine 50. The pallet 32 can be collected easily and in a short time.

Next, in the tire uniformity machine 50, when the upper and lower rims 30 and 31 corresponding to the tire to be subjected to the uniformity test are not mounted on any of the mounting conveyors 27, the piston of the cylinder 17 is The rod 18 is retracted to move the carriage 15, the lifting frame 22, the placing conveyor 27.
Is pulled out laterally from immediately below the swing conveyor 45, and the upper and lower rims 30 and 31 are replaced. At this time, since the swing conveyor 45 may be left in the horizontal position, the efficiency of replacement work is improved.

[0021]

As described above, according to the present invention, the desired upper and lower rims together with the pallet can be easily supplied to the tie uniformity machine in a short time.

[Brief description of drawings]

FIG. 1 is a schematic front view showing an embodiment of the present invention.

FIG. 2 is a schematic plan view thereof.

FIG. 3 is a side view of the vicinity of a placement conveyor.

FIG. 4 is a cross-sectional view illustrating how the upper and lower rims are attached to the upper and lower spindles.

FIG. 5 is an explanatory diagram illustrating an operation.

FIG. 6 is an explanatory diagram illustrating an operation.

FIG. 7 is an explanatory diagram illustrating an operation.

FIG. 8 is an explanatory diagram illustrating an operation.

FIG. 9 is an explanatory diagram illustrating an operation.

[Explanation of symbols]

 22 ... Lifting frame 27 ... Loading conveyor 30 ... Upper rim 31 ... Lower rim 32 ... Pallet 36 ... Transfer conveyor 50 ... Tire uniformity machine 54 ... Upper spindle 57 ... Lower spindle 78 ... Lifting conveyor 89 ... Receiving conveyor

Claims (3)

[Claims] 1. A plurality of stages of loading conveyors, each of which is of a different type on each stage and on which a pallet with a lower rim is placed, are vertically lifted up to collectively raise a desired type, The step of matching the placement conveyor of the pallet on which the lower rim is mounted with the height of the transfer conveyor, and operating the placement conveyor on which the lower rim is placed, above the desired type, The step of transferring the upper and lower rims to the transfer conveyor together with the pallet, and the desired kind by the transfer conveyor,
A method for supplying rims to a tire uniformity machine, comprising: transferring a lower rim together with a pallet to a space between upper and lower spindles of the tire uniformity machine. 2. An elevating frame which can be moved up and down, and a plurality of stages of horizontal stages on which pallets, which are supported by the elevating frame and are vertically separated from each other, and which have different types of upper and lower rims mounted thereon, are placed. A transfer conveyor that is installed in front of the loading conveyor and the lifting frame, and transfers the upper, lower rim, and pallet transferred from the loading conveyor to the lifting conveyor located between the tire uniformity machine and the lower spindle. A rim supply device for a tire uniformity machine, comprising a conveyor. 3. The lift conveyor and the upper and lower rims when the lift conveyor descends to the transfer position and the upper and lower rims on the lift conveyor are transferred to the lower spindle just below the transfer conveyor. The rim supply device for the tire uniformity machine according to claim 2, further comprising a receiving conveyor for receiving a pallet between the tire and the conveyor from the lifting conveyor.