JP3514932B2 - Post cure inflator - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a post-cure inflator for expanding and cooling a vulcanized tire. 2. Description of the Related Art As a post cure inflator of this kind, the time required for inflation and cooling of a vulcanized tire is reduced by one of a tire vulcanizer.
In order to make the cycle time or longer, a post cure inflator of upside down type called a turn-on bar type, which has two sets of upper and lower rims for holding the tire in one cavity of the tire vulcanizer, is widely used. [0003] This upside-down inverted post cure inflator has a lower holding position for holding a vulcanized tire between upper and lower rims, and an upper standby for holding high pressure air sealed in the held tire. And the position are switchable by rotation. In the lower holding position, the lower rim can be moved up and down with respect to the upper rim by an elevating device in order to hold the vulcanized tire or release the inflated and cooled tire. [0004] The lifting device, coincides with the center line of the top and bottom rims, the lower rim has been known a structure that engages the bracket rod end of the cylinder device that upward extension direction. [0005] However, a lower rim elevating device with respect to an upper rim is further provided below a holding position for holding a vulcanized tire or releasing an inflated and cooled tire. Provided. Therefore, there is a problem that the cylinder device protrudes downward from the reversal center of the upside-down reversing member of the post cure inflator . Accordingly, the present invention is to provide St. post cure inflator which can minimize the protrusion of the lift direction from the inversion center of a pair of rims. In order to solve the above-mentioned problems, a post-cure inflator according to the present invention is an upside-down inverted post-cure inflator having a lower holding position and an upper standby position. A holding means for holding the vulcanized tire by a pair of upper and lower rims which are detachably connected by a locking shaft; and two holding means.
Support with but provided in pairs oriented position, as one of the clamping means and the other of the clamping means change places by inversion into the standby position and the clamping position, the rotary shaft being above under reversible supported, the rotary shaft Cha and vertical frame, when the said clamping means in front Kikyoji position for the unloader causing transferred into and out of the vulcanized tire forms a space located between a pair of upper and lower rims are opened, the lower rim
It has a chuck means for click, <br/> a vertically movable lifter vertically together with the chuck means, in order to lift guide the lifter, the vertical rail length across the entire length of the lifting path of the lifter Frame or the vertical frame
Brackets attached slide rail or the like from,
And a pair with the slide rail,
And a slide guide provided apart from the slide guide. [0008] According to the above construction, the vertical movement of the rim on the side opened by the lifter by the slide rail provided along the vertical frame corresponds to the vertical frame reference.
Become . Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a sectional view of a main part of a post cure inflator according to the present invention. In FIG. 1, a post cure inflator has two sets of upper and lower rims 31 and 32 which can freely contact and separate from each other.
And a lifting device 33 for allowing the lower rim 31 located at the sandwiching position P1 to freely contact and separate from the upper rim 32. The upper and lower rims 3 located at the standby position P2
The tires 1 and 32 are integrated and perform expansion and cooling of the vulcanized tire while keeping high-pressure air sealed in the sandwiched tire. The standby position P2 and the holding position P1 are switched by inversion. The overall structure is as follows. A rotating shaft 43 is horizontally supported by the frame 42, and the rotating shaft 43
, A rotating frame 34 is fixedly mounted, and a pedestal 35 is attached to the rotating frame 34. A movable portion 35a that can move up and down with respect to the pedestal 35 by a cylinder device (not shown) is attached to a lower portion of the pedestal 35. A rocking shaft 36 that can be rotated by a predetermined angle by a cylinder device 37 is supported on the pedestal 35. The tip of the locking shaft 36 is a male locking unevenness 36a.
Passes through the female locking unevenness 31a of the lower rim 31, and the space 31
b, the upper and lower rims 31, 32
Are integrated. Further, the lower rim 31 released from the locking shaft 36 is lowered by the elevating device 33 to the position indicated by the two-dot chain line, and the vulcanized tire is placed on the lower rim, or the inflated and cooled tire is removed from the lower rim. I do. The lifting device 33 includes a slide rail 44,
The lifter 45 and the cylinder device 46 are main components. Slide rail 44 are those commercially available as a linear motion guide is a slide guide 45a and a pair of lifter 45 (LM guide), mounted vertically on a bracket or the like from the frame <br/> over arm 42 or frame 42 The upper and lower rims 31 and 32 are parallel to the side of the center axis 47. At the base end of the lifter 45, a slide guide 45a is fixedly provided, and at the other end, a cylindrical portion 45b that fits into the hole 31c of the lower rim is provided upright. The distal end of the rod 46 a of the cylinder device 46 is connected to the base end of the lifter 45. The cylinder device 46 includes a rod 46a.
Frame 42 or frame 4 with the extension direction of
It is attached to brackets from 2 on . The lower rim 31 has a hole 31c in which a locking pin 31d is provided upright. On the other hand, a collet chuck 45c is built in the cylindrical portion 45b of the lifter 45. Further, a positioning ring 31 is provided on a side surface of the lower rim 31.
e, and a guide 34 erected on the rotating frame 34
By inserting this ring 31e into a,
The lower rim 31 is prevented from rotating and falling off. The column portion 45b of the lifter 45 is connected to the hole 31 of the lower rim 31.
In the state inserted in c, the locking pin 31d is fixed so as to be pulled down by the collet chuck 45c, and the lower rim 31 and the tire T can be pulled down by overcoming the adhesive force between the tire T and the upper rim 32. ing. Reference numeral 38 denotes a rack and pinion device for inverting the rotary frame 34 by 180 °, and reference numeral 39 denotes a lock device that makes the upper rim 32 detachable from the pedestal 35. The operation of the above-described post cure inflator will be described below. -In the case of holding a vulcanized tire-The lifter 45 is lowered as indicated by a two-dot chain line, and the vulcanized tire is mounted on the lower rim 31 of the two-dot chain line by an unloader (not shown). And the cylinder device 4
The rod 46a of No. 6 is shortened, and the lower rim 31 moves up to the holding position P1 at the position indicated by the solid line. Then, the locking shaft 36 rotates, the lower rim 31 engages with the locking shaft 36, and the upper and lower rims 31, 32 sandwich the tire T. Then, when the collet chuck 45c is released and the rod 46a of the cylinder device 46 extends, the collet chuck 45c comes out of the cylindrical portion 45b hole 31c and descends without the lower rim. -Removal of inflated and cooled tire-
The rotating frame 34 rotates 180 degrees, and the tire at the standby position P2 is located at the holding position P1. Then, the rod 46a of the cylinder device 46 is shortened, and the hole 3
The column portion 45b of the lifter 45 enters into 1c, the collet chuck 45c closes, and the lower rim 31 is held by the lifter 45. At the same time, the locking shaft 36 rotates in the reverse direction,
The lower rim 45 is released from the locking shaft 36.
Then, the rod 46a of the cylinder device 46 extends, and the lower rim 31 on which the inflated and cooled tire is mounted is lowered to the position indicated by the two-dot chain line. Then, the inflated and cooled tire is unloaded by an unloader device (not shown). Even when the vulcanized tire is pinched and the inflated and cooled tire is removed, the lifting / lowering device 33 can be operated by the lower rim 31.
The lower rim 31 can be moved up and down while maintaining a form not protruding downward. The post cure inflator according to the present invention has the following features.
Among clamping means by the pair of rims which are linked to detachment by rocking shaft, the open are of the side rim, simply because lifting with lifter along the slide rail of the vertical frame along the lifting trajectory of Li Futa slide Since rails and necessary cylinder devices can be provided, it is possible to reduce protrusion in the vertical direction from the post cure inflator.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a sectional view showing a main part of a post cure inflator of the present invention. [Description of Signs] 31 Lower rim (a pair of rims) 32 Upper rim (a pair of rims) 33 Lifting device 36 Locking shaft 42 Vertical frame 43 Rotating shaft 44 Slide rail 45 Lifter 45c Collet chuck (chuck means) 46 Cylinder device P1 Nipping Position P2 Standby position

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-61-83007 (JP, A) JP-A-4-140117 (JP, A) JP-A-4-146107 (JP, A) (58) Field (Int.Cl. ⁷ , DB name) B29C 35/00-35/18 B29D 30/00-30/72

Claims (1)

(57) [Claim 1] An upside-down inverted post cure inflator having a lower clamping position and an upper standby position, wherein a vulcanized tire is disengaged by a locking shaft. and clamping means for clamping the upper and lower pair of rims to be coupled is provided in an pairs oriented position two clamping means, one of the clamping means and the other of the clamping means change places by inversion into the standby position and the holding position as such, the rotary shaft being above under reversible supported, a vertical frame for supporting the rotary shaft, in order unloader causing transferred into and out of the vulcanized tire between the pair of upper and lower rims to form a space located when the clamping means is opened in the previous Kikyoji position, the lower rim
Having chuck means for chucking, the chuck means and
Moni direction perpendicular to the vertically movable lifter, to lift guide the lifter, or the vertical frame rail length across the entire length of the lifting path of the lifter
Is attached to a bracket or the like from the vertical frame.
Post-cure inflator, characterized in that it comprises slide rails, and a slide guide which is spaced apart vertically on the lifter forms the slide rail and pairs.