JP3540500B2 - Tire removal method, tire removal device and tire vulcanization equipment - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a method for removing a tire applied to a vulcanizing facility for a pneumatic tire mounted on an automobile or the like., Tire removal equipment and tire vulcanizing equipmentIt is about.
[0002]
[Prior art]
In a conventional tire vulcanizing press, the reaction time of vulcanization performed by introducing a heating and pressurizing medium (steam, steam + inert gas, or hot water) inside with the tire mold closed, and the time of unvulcanized tire Compared with the time for carrying in, shaping, and removing the vulcanized tire, the latter is much shorter, and therefore, a mold opening / closing device that opens and closes a mold for carrying in a tire or the like. The operation rate of the tire loading device is poor.
[0003]
In order to improve the operation rate, measures such as running the mold opening / closing device across a plurality of dies have been proposed. However, there is a problem that a waiting time is required for changing the mold due to the specification change, and there is a problem such as a danger.
The present applicant has also proposed measures to transfer the tire mold during vulcanization to improve these problems.
[0004]
An example of the tire vulcanization equipment of the tire die transfer system will be described with reference to FIGS. 10 and 11. Reference numeral 1 (1 a and 1 b) denotes a vulcanization station, and the vulcanization station 1 includes a plurality of tire vulcanization dies M ( Ma, Mb, Mc,...) Are mounted and vulcanized, and the mold stands 5 (5a, 5b, 5c,...) Are provided. A mold moving means (not shown) constituted by a pusher, a heating / pressurizing medium replenishing means as required, a pipe and the like are provided.
[0005]
2 (2a and 2b) are mold opening / closing stations. The mold opening / closing station 2 includes a mold opening / closing device 6 (6a and 6b) similar to a known tire vulcanizer (the difference will be described later) and a tire mold M. A known unloader 7 (7a and 7b) for lifting the vulcanized tire T from the vehicle, and a known loader 8 (8a and 8b) for loading the unvulcanized tire G into the tire mold M, as required. A conveyor 9 (9a and 9b) for transporting the vulcanized tire T, a rack 10 (10a and 10b) for the unvulcanized tire G, and the like are provided.
[0006]
The mold carrier has a rail 4 fixed to the floor surface (or a common base plate), and a truck 3 (3a and 3b) guided by the rail 4 and traveled by a travel driving device (not shown). The mold exchanging station 2 includes a mold exchanging table 11 for exchanging a tread mold, a sidewall mold, and the like in a tire vulcanizing mold in accordance with a specification change of a vulcanized tire, and exchanging a consumable bladder, and the like. A mold opening / closing means necessary for these exchange operations is provided.
[0007]
In the conventional tire vulcanizing equipment of the conventional tire mold transfer system shown in FIGS. 10 and 11, the upper mold portion of the tire mold is provided on a bolster plate, and the lower mold portion is provided on a base (a lower beam of a main body frame) with a heat insulating material and bolts. The tire mold is closed against the force generated by the heating and pressurizing medium filled in the tire through the bladder (force for opening the tire mold). For this purpose, a pressurizing cylinder is provided between the bolster plate and the base (the lower beam of the main body frame), and the bladder and the operating mechanism are integrally assembled as a lower center mechanism and incorporated into the base. However, in the tire vulcanization equipment of the tire die transfer system, the tire die during vulcanization is transferred, so that the tire vulcanization die M can be automatically attached to and detached from the die opening / closing device 6. I have. A bladder is assembled to the tire vulcanizing mold M, and is automatically detachable from the operating mechanism. Locking and unlocking driving means of a lock mechanism for preventing the tire mold during vulcanization from being opened are incorporated in the mold opening / closing device 6, and the basics of opening / closing the tire mold, loading / unloading of the tire, shaping, etc. The basic operation procedure and operation are performed in the same manner as the conventional one.
[0008]
[Problems to be solved by the invention]
In the conventional tire vulcanization equipment of the conventional tire mold transfer system, all of the vulcanization ends and vulcanized tires are removed from the opened tire vulcanization mold (or tire vulcanization mold assembly). After taking out, the next unvulcanized tire to be vulcanized is carried in, so major changes such as adding special equipment to the tire vulcanizing mold (or tire vulcanizing mold assembly) are made. There is a need.
[0009]
The present invention has been made in view of the above-described problems, and the purpose thereof is as follows.(A)The removal of the vulcanized tire from the vulcanized tire vulcanization mold (or tire vulcanization mold assembly) and the transfer of the unvulcanized tire to the same mold can be performed in parallel, Can increase productivity,(B)A method for removing a tire, which eliminates the need for a vulcanized tire chuck device incorporated in the center of a bolster plate in a part of a conventional tire vulcanizing press., Tire removal equipment and tire vulcanizing equipmentThe point is to try to provide.
[0010]
[Means for Solving the Problems]
In order to achieve the above object, a method for removing a tire according to the present invention includes a vulcanization station for arranging a plurality of sets of tire vulcanizing dies and performing vulcanization, and opening the tire vulcanizing dies to remove a vulcanized tire. After inserting the unvulcanized tire to be vulcanized and shaping it, the tire vulcanizing mold is closed and the tire vulcanizing station is interposed between the vulcanizing station and the mold opening / closing station. In a tire vulcanizing facility having a mold transporting trolley for transferring a mold for molding, a mold opening / closing device of the mold opening / closing station is moved between two positions, and a tire mold is partially moved in a first position. Open, hold the tire in the upper mold, peel from the lower mold, move to the second position, and in the second position, remove the lower bead portion of the tire by the tire removal device arranged below the second position. Grasp and then remove the upper mold While in, lowers the take-out the tire system is characterized in that the tire is removed attached to the upper mold downwardly of the upper mold (claim 1).
[0011]
Also, the present invention provides a vulcanization station for arranging a plurality of sets of tire vulcanizing dies to perform vulcanization, an unvulcanized tire to be vulcanized after opening the tire vulcanizing dies and taking out a vulcanized tire. A mold opening / closing station that closes the tire vulcanizing mold after shaping by inserting a mold, and a mold transporting trolley for transferring the tire vulcanizing mold between the vulcanizing station and the mold opening / closing station.Moving the tire vulcanizing mold between two positions, at the first position, partially opening the tire vulcanizing mold, holding the tire in the upper mold, peeling off the lower mold, A mold opening / closing device of the mold opening / closing station, which fully opens the upper mold after being moved to the second position;Tire vulcanization equipment withA tire take-out device to be used, which is provided so as to be able to ascend and descend, grips a lower bead portion of the tire held by an upper mold at a second position with an openable / closable claw, lowers the tire, and is fully opened. Remove the tire attached to the upper mold below the upper mold(Chart 2).
The tire removing device according to claim 2 may be provided so as to be able to move up and down and swing.
[0012]
Further, the present invention is a tire vulcanizing equipment, a vulcanizing station for arranging and vulcanizing a plurality of sets of tire vulcanizing dies, and after opening the tire vulcanizing dies and taking out a vulcanized tire, A mold opening / closing station that closes the tire vulcanizing mold after inserting and shaping the unvulcanized tire to be vulcanized, and the tire vulcanizing mold between the vulcanizing station and the mold opening / closing station. The mold transporting truck to be transferred and the tire vulcanizing mold are moved between two positions. At the first position, the tire vulcanizing mold is partially opened, and the tire is held by the upper mold. A mold opening / closing device of the mold opening / closing station, wherein the upper mold is fully opened after being separated from the mold and moved to the second position, and the tire removal device according to claim 2 or 3, (Claim 4).
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
Next, a method for removing a tire according to the present invention, Tire removal equipment and tire vulcanizing equipmentEach embodiment will be described with reference to each embodiment shown in FIGS.
(1st Embodiment)
First, a tire take-out device of the present inventionAnd tire curing equipmentThe first embodiment will be described with reference to FIGS.
[0014]
FIG. 1 is a plan view showing the entirety of a tire vulcanizing facility including the first embodiment of the tire removing device, FIG. 2 is a front view showing the entirety of the tire vulcanizing facility, and FIG. FIG. 4 is a vertical sectional side view showing a half along the line ee in FIG. 1, FIG. 4 is a vertical sectional side view showing the tread type opening / closing device along the line ee in FIG. 1, and FIG. FIG. 6 is a vertical sectional side view showing another embodiment of the opening / closing device section along the line ee in FIG. 1, and FIG. 6 is a vertical sectional side view showing the tire removing device along the line ee in FIG. 1. FIG. 7 is a plan view showing the tire removing device along the line ff in FIG. 6.
[0015]
M in FIGS. 1 and 2 is a plurality of tire vulcanizing mold assemblies whose details will be described later.
A is a vulcanization station for mounting and vulcanizing the tire vulcanizing mold assembly M. The vulcanizing station A is centered on a rail 201 that guides a truck D for transferring the tire vulcanizing mold assembly M. It comprises a plurality of mold stands 101 arranged and a base 103 connecting these mold stands 101. On the upper surface of each mold stand 101, a tire vulcanizing mold assembly M transporting cart D and a mold are provided. A guide member 102 that allows the tire vulcanizing mold assembly M to move in a direction perpendicular to the rail 201 between the base 101 and the base 101 is assembled, and a mold assembly positioning means (not shown), A heating / pressurizing medium replenishing means, a pipe, and the like are provided.
[0016]
In addition, on the gantry 121 provided above the vulcanization station A, a storage device 122 for temporarily storing and sorting the unvulcanized tire G, a raw tire table 123 for placing the next unvulcanized tire G to be vulcanized, A well-known loader 124 that sorts and transfers unvulcanized tires from the storage device 122 to the green tire table 123 is provided.
The mold opening / closing station includes a mold opening / closing device C, which will be described in detail later, an unloading device U for taking out the vulcanized tire T from the opened upper mold portion Ma of the tire vulcanizing mold assembly M, and a tire vulcanizing mold. It comprises a known loader L for carrying the unvulcanized tire G onto the opened lower mold part Mb of the mold assembly M, and a vulcanized tire delivery conveyor 360 and the like are provided as necessary.
[0017]
The loader L is supported by a column 350 erected at an appropriate position on the base 301 of the mold opening / closing device 8, a known elevator (not shown) assembled to the column 350, a lifting drive device, and a swinging device. An unvulcanized tire gripping device 351 which is mounted on a tip of the arm, a swing driving device for the arm, and an unvulcanized tire gripping device 351 which is mounted on the tip of the arm._FourAnd the center position P of the lower mold part Mb₁And can move up and down at both positions.
[0018]
Next, the configuration of the truck D for transferring the tire vulcanizing mold assembly M and the structure of the tire vulcanizing mold assembly M will be specifically described with reference to FIG.
201 is a pair of bogie D rails laid across the base 103 of the vulcanizing station A and the base 301 of the mold opening and closing device C, 204 is a frame of the bogie D, and 205 is a skid rail fixed to the frame 204. Instead of attaching wheels to the frame 204, a plurality of rollers 202 and 203 are rotatably mounted on the rail 210, and the traveling drive unit enables the truck D for transferring the tire vulcanizing mold assembly M to travel.
[0019]
Reference numeral 206 denotes a guide roller that guides the tire vulcanizing mold assembly M in a direction perpendicular to the rail 201 by being mounted thereon. (Not shown), the tire vulcanizing mold assembly M is transferred.
Reference numeral 207 denotes a lock device (a lock device for positioning and locking the transporting truck D for transferring the tire vulcanizing mold assembly M) assembled at an appropriate position of the bases 103 and 301, and reference numeral 208 denotes a tire vulcanizing mold assembly assembled to the frame 204. This is a lock device for positioning and locking the solid M.
[0020]
Next, the tire vulcanizing mold assembly M will be described with reference to FIG.
Reference numerals 401 and 403 denote sidewall type portions for the tire T, 402 denotes a tread type portion divided into a plurality in the circumferential direction, B denotes a rubber bladder, 404 and 405 denote clamp rings for gripping the ends of the bladder B, and a mold opening and closing device. A lower center mechanism (not shown), which is incorporated in the base 301 of C, and supplies and discharges the heating and pressurizing medium into and from the bladder B, and separates the clamp rings 404 and 405; Is removable.
[0021]
409 is an upper pressing plate, 407 is an upper heating plate fixed to the upper pressing plate 409 via a heat insulating plate 408, 406 is a top plate with a lower surface bolted to the upper side wall, and 410 is an outer ring fixed to the upper heating plate 407. , 411 are a plurality of segments, and these segments 411 are slidably assembled vertically along the circumferential conical surface of the outer ring 410 and slidable in the radial direction on the top plate 406 to form an inner surface. The tread mold 402 is bolted, and the pitch circle of the tread mold 402 is expanded and contracted via the segment 411 by the contact and separation between the top plate 406 and the upper heating plate 407.
[0022]
415 is a lower pressing plate, 413 is a lower heating plate fixed to the lower pressing plate 415 via a heat insulating plate 414, 412 is a bottom plate, and the bottom plate 412 is fixed to the lower heating plate 413, and on the upper surface, The lower side wall plate 403 is bolted, and the lower pressure plate 415 is mounted on the roller 206 via a skid rail 416 fixed to the lower pressure plate 415. The lower surface of the segment 411 and the upper surface of the bottom plate 412 are slidable at the time of contact.
[0023]
A plurality of connecting rods 420 are slidably inserted into holes 409 b formed near the outer periphery of the upper pressing plate 409, and a housing 418 is provided between the top flange 420 a of the connecting rod 420 and the upper pressing plate 415. A disc spring 419 pre-compressed and interposed between the housing 417 and the upper pressing plate 415 is a nut fixed to the connecting rod 420 by a known means. At the time of loading, a slight gap is generated between the contact surface between the lower surface of the housing 417 and the upper pressing plate 409, and the bolster plate 311 of the mold opening / closing device C and the upper surface of the housing 417 are contacted. The housing 417 is pushed down against the compressive force of the above and is brought into contact with the upper surface of the upper pressing plate 409. Further, when the contact is performed in this manner, a small gap is generated between the lower surface of the upper pressing plate 409 and the nut 419, and the dimension is set so that the connecting rod 420 can be rotated.
[0024]
The T-shaped body 420b formed at the lower end of the connecting rod 420 and the finger 415a formed on the lower pressing plate 415 pass or lock depending on the rotation angle of the connecting rod 420.
Reference numeral 313 denotes a rotary driving device for the connecting plate 420 assembled to the bolster plate 311. The lower end 313a of the output shaft of the rotary driving device 313 is formed in a square shape, and the bolster plate 311 descends to contact the housing 417. The connecting rod 420 is inserted and engaged in a square hole formed on the upper surface of the upper end flange 420a.
[0025]
Reference numeral 312 denotes a plurality of attachment / detachment devices assembled to the bolster plate 311 for gripping the tire vulcanizing mold assembly M. Each of the attachment / detachment devices 312 has a T-shaped body 312b formed at the lower end of the gripping shaft 312 and an upper portion. The finger 409 formed on the upper surface of the pressing plate 409 passes or locks depending on the rotation angle of the grip shaft 312a.
Next, the mold opening and closing device C will be described with reference to FIGS. 1, 2, 4 and 5. The connecting rod 420 and some other parts are not shown.
[0026]
Reference numeral 301 denotes a base of the mold opening / closing device C, 302 denotes a hydraulic unit for the mold opening / closing device disposed at an appropriate position, and 303, 304, and 305 linear tracks laid in an appropriate position on the upper surface of the base 301 in parallel with the rail 201. , 306 are portal frames, 307 is a bearing nut slidably engaged with the linear tracks 303, 304, 305 by bolting to the lower surface of the portal frame 306, and 308 connects one end to the base 301 and the other end. Portion is connected to the portal frame 306, and the portal frame 306 is moved to the first position P by the expansion and contraction operation of the hydraulic cylinder 308.₁And the second position P_TwoTo move between.
[0027]
Bolster plate 309 is a linear track laid vertically on the inner surface of main leg 306a of portal frame 306 running on linear tracks 303, 304, and bolster plate 311 is fixed with a bearing nut slidably engaging linear track 309. Reference numeral 310 denotes an elevating cylinder fixed to the cross beam portion 306b of the portal frame 306. The rod of the elevating cylinder 310 is connected to the bolster plate 311. The bolster plate 311 is raised and lowered by the expansion and contraction operation of the elevating cylinder 310.
[0028]
Reference numeral 314 denotes an opening / closing device of a tread type 402 assembled to a central portion of the bolster plate 311. Locking means for the top plate 406 and the upper pressing plate 409 is provided by an inner ring 315 bolted to the top plate 406, An outer ring 317 rotatably mounted on an inner peripheral portion via a bush 316, and an outer ring 317 formed on an inner peripheral portion of the outer ring 317 and an outer peripheral portion of the inner ring 315. It is composed of a plurality of pairs of claws 315a and 317a that can pass in the core direction, and a swing rotation device described later. Reference numeral 318 denotes a stopper fixed to the outer ring.
[0029]
319 is a spacer fixed to the bolster plate 311, 320 is a plurality of rods having one end fixed to the bolster plate 311, 321 is a mold opening / closing cylinder bolted to the other end of the rod 320, 322 is a mold opening / closing cylinder 321. An extension rod 324 fixed to the distal end of the rod 321 a is sleeved with the extension rod 322 rotatably (slidably) attached to the extension rod 322, and a bush 323 is screwed inside the upper end of the sleeve 324.
[0030]
The connection means for connecting the mold opening / closing cylinder 321 and the top plate 406 includes an extension rod 322, a bush 323, a sleeve 324, a connection rod 325 integrally attached to the inner ring 315, and a connection rod 325. It comprises a plurality of pairs of claws 325a, 324b which are formed on the upper outer periphery and the lower inner periphery of the sleeve 324 and can be engaged or passed in the axial direction depending on the rotation angle of the sleeve 324.
[0031]
326 is a lever, and the lever 326 has a fork-shaped tip and is rotatably assembled to the bolster plate 311 via a pin 327. Between the other end of the lever 326 and the bolster plate 311 , And a cylinder 328, and the lever 326 swings about the pin 327 by the expansion and contraction operation of the cylinder 328.
[0032]
A rod 329 is fixed to an arm 324 c extending outward from the sleeve 324, and the rod 329 is parallel to the sleeve 324. The rod 329 is inserted into a U-shaped groove formed in the fork end of the lever 326, and the distal end of the arm 330 is inserted into a key groove 324a formed parallel to the axis on the outer periphery of the sleeve 324. Swings, the sleeve 324 rotates, and the outer ring 317 also rotates via the sleeve 324 and the arm 330.
[0033]
By this rotation, when the set of claws 315a, 317a is in the engageable state, the set of claws 325a, 324b is allowed to pass (detachable), and the set of claws 315a, 317a is in a passable state. At this time, the set of claws 325a and 324b is in the engaged state, and the tread mold 402 can be opened and closed by the expansion and contraction operation of the cylinder 321.
[0034]
Next, the tire removing device U will be described with reference to FIGS.
Reference numeral 501 denotes a gantry fixed to the base 301 of the mold opening / closing device C; 502, a plurality of guide rods inserted into the gantry 501 so as to be slidable up and down; 503, a bracket fixed to the upper end portion of the guide rod 502; In the tire gripping device, the bracket 503 and the tire gripping device 505 are moved up and down by the expansion and contraction operation of a cylinder 504 assembled between the gantry 501 and the bracket 503.
[0035]
The tire gripping device 505 includes a frame 506 bolted to the bracket 503, a plurality of blocks 508 slidably incorporated in a radial direction with a guide member 507 radially attached to the frame 506 as a guide, and a gripping claw integrated with the block 508. 508a and a cylinder 509 incorporated between the block 508 and the frame 506. The expansion and contraction operation of the cylinder 509 expands and contracts the pitch circle diameter of the gripping claws 508a.
[0036]
Reference numeral 510 denotes a roller conveyor in which a plurality of rollers 512 are rotatably mounted on a frame 511, and one end of a frame 511 of the roller conveyor 510 is mounted so as to be vertically swingable about a pin 513 provided on a frame 501. A cylinder 514 is incorporated between the other end of the frame 511 and the gantry 501, and the upper surface of each roller 512 of the roller conveyor 510 is brought into a horizontal state or an inclined state by the expansion / contraction operation of the cylinder 514, In the inclined state, the vulcanized tire T on the roller conveyor 510 is sent out onto the belt conveyor 330 by its own weight. The left half of FIG. 6 illustrates a large-sized vulcanized tire T, and the right half of FIG. 6 illustrates a small-sized vulcanized tire T.
[0037]
Next, the operation of the tire removing device shown in FIGS. 1 to 7 will be specifically described.
After the vulcanization process, the tire vulcanizing mold assembly M is set at the fixed position P of the mold opening / closing station.₁Transported and locked. At this time, the mold opening / closing devices 306 to 312₁At the position (first position), it is lowered to a position where it does not hinder the progress of the tire vulcanizing mold assembly M and stands by.
[0038]
On the other hand, the gripper 351 of the loader L_FourAt the position, the unvulcanized tire G is gripped and raised. Further, the tire gripping device 505 of the tire unloading device U is lowered by reducing the diameter of the gripping claw 508a, and the roller conveyor 510 is lowered in an empty state to be in a horizontal state.
When the tire vulcanizing mold assembly M is locked, the bolster plate 311 is lowered to come into contact with the housing 417, the spring body 418 is bent to lower the connecting rod 420, and the T-shaped member 420b of the connecting rod 420 is lowered. Moves to a position lower than the lower surface of the finger 415A of the lower pressing plate 415.
[0039]
In this state, the rotation drive unit 313 for the connection plate 420 is operated to rotate the connection rod 420 so that the T-shaped body 420b and the finger 415a of the connection rod 420 can pass through.
During this time, the mold connecting device 312 is operated to connect the bolster plate 311 and the upper pressing plate 409, and the heating / pressurizing medium filled in the vulcanized tire T via the bladder B is discharged. , The cylinder 328 is actuated, the sleeve 324 rotates, and the set of claws 315a, 317a is allowed to pass, and the set of claws 325a, 324b is engaged.
[0040]
Next, a negative pressure is applied to the inside of the bladder B, and the bolster plate 311 is raised while the bladder B is extended. When the bolster plate 311 is raised, the upper mold Ma (401, 402, 406 to 411) of the tire vulcanizing mold assembly M rises while holding the vulcanized tire T, and the vulcanized tire T becomes a tire. The bladder B is separated from the lower mold 403 of the vulcanized mold assembly M, and the bladder B is pulled out relatively below the vulcanized tire T. When the upper mold Ma of the tire vulcanizing mold assembly M rises to a height that does not interfere with the extended bladder B, P_TwoMove to the position (second position).
[0041]
P_TwoWhen the position (second position) is reached, the gripping device 505 of the tire removing device U is raised, and when the gripping claw 508a reaches above the lower bead portion of the vulcanized tire T, the gripping claw 508a is expanded in diameter and After gripping the lower bead portion of the vulcanized tire T from inside, the cylinder 321 of the tread type opening / closing device 314 is operated while the gripping device 505 is lowered, and the diameter of the divided tread type 402 is expanded, and vulcanized. The vulcanized tire T is peeled from the upper sidewall mold 401 by peeling off from the tire T and further lowering the gripping device 505.
[0042]
During this time, P₁The unvulcanized tire G is loaded by the loader L onto the lower mold of the tire vulcanizing mold assembly M at the position (first position), and the gripping device 351 that has finished loading the tire moves to the standby position P._FourAnd waits for the supply of the unvulcanized tire G.
The upper mold Ma of the tire vulcanizing mold assembly M, from which the removal of the vulcanized tire T has been completed, returns to the P position when the unvulcanized tire G has been loaded onto the lower mold.₁Returning to the position (the first position), the bolster plate 311 is lowered, the unvulcanized tire G is shaped and the mold is closed, and thereafter, the vulcanizing step is started in the same procedure as in the conventional apparatus.
[0043]
On the other hand, in the tire removal device U that removes the vulcanized tire T from the upper mold Ma of the tire vulcanization mold assembly M, when the gripping claw 508a is reduced in diameter and reaches the lower limit, the vulcanized tire T is rolled. Since it is left on the conveyor 510, the roller conveyor 510 is inclined, the vulcanized tire T is moved by its own weight from the roller conveyor 510 to the delivery conveyor 360, and is sent out of the tire vulcanizing equipment by the delivery conveyor 360, and the tire vulcanized. After being sent out of the vulcanizing facility, the roller conveyor 510 returns to the horizontal state and waits for the next vulcanized tire T to be taken out.
[0044]
(2nd Embodiment)
Next, the tire removing device of the present inventionAnd tire curing equipmentThe second embodiment will be described with reference to FIGS. FIG. 8 is a plan view showing the entire tire vulcanizing equipment including the second embodiment of the tire removing device, and FIG. 9 is a vertical sectional side view taken along the line gg in FIG.
[0045]
The second embodiment differs from the first embodiment only in the tire take-out device and the tire delivery conveyor, and only different points will be described below. The same components are denoted by the same reference numerals, and detailed description is omitted.
The tire removal device 520 according to the present embodiment includes a guide column 521 erected on the base 301, an arm 522 assembled to the guide column 521 so as to be able to move up and down and swing, and a driving device (shown in FIG. ), And a tire gripping device 505 bolted to the tip of the arm 522 (see the above for details). The tire gripping device 505 moves up and down by actuation of a driving device (not shown), and the tire take-out position P_Two(Second position) and tire release position P_ThreeIt is configured to swing between and.
[0046]
The effect of this embodiment is that the upper mold of the tire vulcanizing mold assembly M_TwoWhen the position (second position) is reached, P_TwoThe diameter of the gripping claw 508a is reduced below the position, and the idle tire gripping device 505 rises, and when the gripping claw 508a reaches above the lower bead portion of the vulcanized tire T, the gripping claw 508a is expanded. Then, the lower bead portion of the vulcanized tire T is gripped from the inside, and then the cylinder 321 of the tread type opening / closing device 314 is operated while lowering the tire gripping device 505 to expand the divided tread die 402. Then, the vulcanized tire T is peeled from the vulcanized tire T, and the tire gripping device 505 is further lowered to peel the vulcanized tire T from the upper side wall type.
[0047]
During this time, P₁The unvulcanized tire G is loaded from the loader L onto the lower mold of the tire vulcanizing mold assembly M at the position (first position).
When the removal of the vulcanized tire T from the upper mold of the tire vulcanizing mold assembly M is completed, the tire gripping device 505 moves the tire release position P_ThreeThe vulcanized tire T is delivered to a next-step device (not shown) (for example, an overhead traveling lifter, a loader of a tire gripping inflator, etc.)_TwoReturn to the position (second position), and wait for the next vulcanized tire T to be taken out.
[0048]
The operation of the upper mold of the tire vulcanizing mold assembly M from which the vulcanized tire T is taken out and other tire vulcanizing equipment are the same as those of the first embodiment.
[0049]
【The invention's effect】
Tire removal method of the present invention, Tire removal equipment and tire vulcanizing equipmentTransports and locks the vulcanized tire mold (or tire vulcanizing mold assembly) to the first position P1 of the mold opening and closing station as described above (1). After discharging the heated and pressurized medium filled inward, the bladder is lifted up with respect to the lower mold while extending the bladder without opening the tread mold part, and the vulcanized tire is moved to the upper mold. The upper mold is moved to the second position when the upper mold is lifted to a height that does not interfere with the extended bladder. (2) When the upper mold reaches the second position, Raise the gripping device of the tire removal device, grip the lower bead of the vulcanized tire held by the upper die with the gripping claws, and (3) open the tread mold portion of the upper die and then lower the gripping device. Then, the vulcanized tire is peeled from the upper mold, taken out downward, and (4) In the meantime, the next unvulcanized tire to be vulcanized is hung by the loader into the lower mold left at the first position P1, the bladder is inserted and held, and (5) loading of the unvulcanized tire Is completed, the upper mold from which the vulcanized tire is taken out is returned to the first position P1, and thereafter, the upper mold is lowered as usual, and the unvulcanized tire is shaped and the mold is closed.(A)The removal of the vulcanized tire from the vulcanized tire vulcanization mold (or tire vulcanization mold assembly) and the transfer of the unvulcanized tire to the same mold can be performed in parallel, Can increase productivity,(B)In a part of the conventional tire vulcanizing press, the vulcanized tire chuck device incorporated in the center of the bolster plate can be eliminated.
[Brief description of the drawings]
FIG. 1 is a plan view showing the entirety of a tire vulcanizing facility including a first embodiment of a tire removing device used for carrying out a tire removing method of the present invention.
FIG. 2 is a front view showing the entire tire vulcanizing equipment.
FIG. 3 is a vertical sectional side view showing the right half of the tire mold assembly along the line ee in FIG. 1;
4 is a vertical sectional side view showing the tread-type opening / closing device along the line ee in FIG. 1;
FIG. 5 is a vertical sectional side view showing another mode of the tread opening / closing device along the line ee in FIG. 1;
FIG. 6 is a longitudinal sectional side view showing the tire removing device taken along line ee in FIG. 1;
FIG. 7 is a plan view showing the tire removing device taken along the line ff of FIG. 6;
FIG. 8 is a plan view showing the entirety of a tire vulcanizing facility including a second embodiment of the tire removing device.
FIG. 9 is a vertical sectional side view taken along line gg in FIG. 8;
FIG. 10 is a plan view showing an example of a conventional tire vulcanizing facility.
FIG. 11 is a front view taken along the line cc of FIG. 10;
[Explanation of symbols]
A (101-103) Vulcanization station
B bladder
C (301-329) Mold opening / closing device of mold opening / closing station
D (204-207) Truck for transferring tire vulcanizing mold assembly
G Unvulcanized tire
L (350, 351) Loader for loading unvulcanized tires
M (401-420) Tire vulcanizing mold assembly
401 Upper wall type part
402 tread type part
403 Lower wall type part
Ma (401, 402, 406-411) Upper die part
Mb (403, 412-416) Lower part
T vulcanized tire
U (501-514) Tire removal device
520 (505-509, 521-522)
P₁                                    1st position
P_Two                                    2nd position

Claims (4)

A vulcanization station that arranges and vulcanizes multiple sets of tire vulcanizing dies, and opens the same tire vulcanizing dies, removes the vulcanized tire, inserts the next unvulcanized tire to be vulcanized, and shapes it A tire vulcanizing facility having a mold opening / closing station for closing the tire vulcanizing mold and a mold transporting trolley for transferring the tire vulcanizing mold between the vulcanizing station and the mold opening / closing station In the above, the mold opening / closing device of the mold opening / closing station is moved between two positions, and in the first position, the tire mold is partially opened, the tire is held in the upper mold, and the tire is separated from the lower mold. Then, the tire is moved to the second position, and in the second position, the lower bead portion of the tire is gripped by the tire removing device disposed below the second position, and then the upper mold is fully opened. To lower the upper mold. Tire extraction method characterized by taking out the tire below the upper mold. A vulcanization station that arranges and vulcanizes multiple sets of tire vulcanizing dies, and opens the same tire vulcanizing dies, removes the vulcanized tire, inserts the next unvulcanized tire to be vulcanized, and shapes it A mold opening / closing station for closing the tire vulcanizing mold, a mold transporting trolley for transferring the tire vulcanizing mold between the vulcanizing station and the mold opening / closing station, and the tire vulcanizing mold The mold is moved between the two positions. At the first position, the tire vulcanizing mold is partially opened, the tire is held by the upper mold, peeled from the lower mold, and moved to the second position. After fully opening the upper mold, a mold opening and closing device of the mold opening and closing station, and a tire removal device used in a tire vulcanizing facility ,
The lower bead portion of the tire held by the upper mold at the second position is held by an openable claw, the tire is lowered, and the tire attached to the fully opened upper mold is provided. A tire take-out device, which takes out the device below an upper mold . 3. The tire take-out device according to claim 2, wherein the device is provided so as to be able to move up and down and swing . A vulcanization station that arranges and vulcanizes a plurality of tire vulcanizing dies;
A mold opening / closing station that opens the tire vulcanizing mold, removes the vulcanized tire, inserts the next unvulcanized tire to be vulcanized, shapes it, and then closes the tire vulcanizing mold,
A mold carrier for transferring the tire vulcanizing mold between the vulcanizing station and the mold opening / closing station,
The tire vulcanizing mold is moved between the two positions, and at the first position, the tire vulcanizing mold is partially opened, the tire is held in the upper mold, and the tire is peeled from the lower mold. A mold opening / closing device of the mold opening / closing station, which fully opens the upper mold after being moved to the two positions;
A tire take-out device according to claim 2 or 3,
Tire vulcanizing equipment characterized by having:

Images