KR20200076933A - Bladder Replacing Apparatus - Google Patents

Abstract

The present invention relates to a bladder replacement apparatus, in which a structure of a lower clamp ring and a clamp ring fixing unit is improved to easily replace a bladder aged by a repeated curing operation, so that workability is improved while a replacement time is shortened when replacing the bladder, and the lower clamp ring is securely fixed to minimize damage, stamping, and abrasion problems of the lower clamp ring. The bladder replacement apparatus includes: a lower clamp ring (10) for fixing a lower ear part of a bladder; an upper clamp ring (20) installed at an upper end of a support shaft (60), which is coupled to a center post (50) with a bearing (55) interposed therebetween, to fix an upper ear part of the bladder; a fixing shaft (40) coupled to the support shaft (60); and a clamp ring fixing member (30) to which the lower clamp ring (10) is fixed, and which is coupled to the fixing shaft (40).

Description

Brader Replacing Apparatus

The present invention relates to a Brader replacement device, and more specifically, by improving the structure of the lower clamping and clamping fixture to easily replace the aging Brader due to repeated vulcanization work, the operation at the time of Brader replacement It relates to a brad replacement device that improves the performance and shortens the replacement time, and that the lower clamping is securely fixed to minimize damage to the lower clamping, as well as problems with sticking and abrasion.

In general, the production process of tires is a refining process in which chemicals are mixed with rubber as a raw material, a rolling/extrusion/cutting process in which the compounded rubber is produced as a semi-finished product, and a molding process in which green tires are assembled by assembling the manufactured semi-finished product, green It can be divided into a vulcanization (vulcanization) process that applies heat and pressure to the tire.

In the vulcanization process, after attaching a rubber bag called a brader to the center post of the vulcanizer, the green tire is molded by loading the green tire between the upper mold and the lower mold of the vulcanizer, and expanding the bladder inside the green tire. It is made by heating at the same time as pressing to the side.

Here, the Brader mounting device for mounting the Brader to the center post of the vulcanizer is coupled to the outside of the center post of the vulcanizer, as shown in FIG. 1, to connect the lower ear portion 102 of the Brader 100. The lower clamping ring 110 for fixing, and the lower beading ring 120 in the form of a circular ring which is provided below the side mold (not shown) and fixes the lower ear portion 102 together with the lower clamping ring 110, It is coupled to the outside of the support shaft installed in the center post, the upper clamping ring 130 for fixing the upper ear portion 101 of the brother 100, and detachably coupled to the upper side of the side mold, and the upper clamping 130 It comprises an upper bead ring 140 for supporting the outer circumferential side, and one or more fastening bolts 150 for fastening and fixing the lower bead ring 120 and the lower clamp ring 110.

And the upper clamping 130 is the upper clamping lower body 131 coupled to the support shaft, and the outer upper end is supported by the upper bead ring 140 and the upper clamping lower body 131 together with the brother 100 ) Between the upper clamping upper body 132 fixing the upper ear portion 101 of the upper clamping lower body 131 and the upper clamping upper body 132, the upper ear portion in the brother 100 ( 101) includes one or more fastening bolts 133 for fastening and fixing the upper clamping upper body 132 to the upper clamping lower body 131 to be inserted and fixed.

However, the brader clamped to the center post of the vulcanizer is continuously exposed to a heat source and aging progresses as the pressure source expands and contracts. When the Brader ages, it is impossible to supply heat and pressure uniformly to the green tire, so the quality of the finished tire is deteriorated. Therefore, the old aged Brader should be replaced with a new one.

However, as the lower clamping device is directly coupled to the center post, the conventional clamping device is damaged or stamped due to movement or rotation of the lower clamping ring and various movements or rotations occurring until the bracket is mounted. There is a problem that abrasion problems occur continuously.

As a result of investigating the prior art related to the present invention, a number of patent documents have been searched and some of them are as follows.

Patent Document 1 is a bead ring of a tire vulcanizer that is fastened in a circular ring form to a side mold and grips the ear portion of a bladder that expands inside the green tire together with the clamp ring when vulcanizing the green tire, and the seating surface of the bead ring The mold ring seated in the spring is coupled and separated from the bead ring by means of a spring-loaded fastening pin, but the coupling protrusions formed at the lower end of the fastening pin are inserted into or extended from the bead ring's custom circular groove. Disclosed is a common type bead ring for a tire vulcanizer that improves the compatibility of a vulcanizer that can be used by being applied in a fixed state and a divided state of a bead ring that secures the ear portion of a brad.

Patent document 2 is a support post movable by a moving mechanism; A rotating plate disposed on the support post; A lower clamping fixing part fixed to be rotatable on the rotating plate; A spring disposed around the lower clamping fixture; A lower clamping lower half seated on a spring fixing part installed on an upper part of the spring; A lower clamping upper portion coupled to an upper side of the lower clamping lower portion to grip the lower bead portion of the brother; A support shaft fixed to the lower clamping fixing part; An upper clamping lower half supported on an upper clamping fixing portion formed on an upper end of the support shaft; And, the upper portion of the upper clamping is coupled to the upper portion of the upper clamping so as to grip the upper bead portion of the brother is disclosed a replacement apparatus of the configuration comprising a upper portion of the upper clamping.

Patent Document 3, while the vulcanized parts are made of a material of A6061 T6, while forming the nut grooves such that the upper clamping, lower clamping, molding, and beading rings included in the vulcanized parts are fastened in the form of bolts and nuts, By forming insert grooves into which the insert members are inserted so that the upper clamp ring, lower clamp ring, mold ring, and bead ring are fastened in the form of bolts and nuts, it is easily replaceable when the bladder is broken and the pressure generated in the curing process And light weight vulcanized parts for tire production with excellent heat resistance.

Patent Document 4 is for a vulcanized braid made of a clamping ring in which a lower portion of the vulcanized bladder is fixed to a bracket fixing jaw, and a lock ring that is fastened and assembled in a locked state on a circular base plate of the clamping ring or separated in a non-locked state. In the lower clamping assembly device, a plurality of curved concave portions are formed at an isometric circumference around the circular inner surface of the lock ring, and the curved concave portions formed around the circular inner surface of the lock ring are uneven on the corresponding curved convex portions formed on the outer surface around the circular base of the clamp ring. Disclosed is a lower clamping assembly device for a vulcanized bladder capable of reducing the size of clamping while improving the durability of a facility through simplification of a structure by being assembled in a locked state separated from a locked state to be combined in a combined manner.

Patent Document 1: KR10-1393502 B1 Patent Document 2: KR10-1591345 B1 Patent Document 3: KR10-1601664 B1 Patent Document 4: KR10-2018-0079661 A

According to the present invention, by installing a clamping fixture on the center post to support the lower clamping, workability is improved and the replacement time is shortened when replacing an aging bladder due to repeated vulcanization, as well as the lower portion due to high weight. It is an object of the present invention to provide a replacement device for a braid that minimizes damage, nicking, and wear of the clamping ring.

The present invention for achieving the above object, and the lower clamping for fixing the lower ear portion of the brother; An upper clamping ring installed at the upper end of the support shaft coupled through the bearing to the center post to fix the upper ear portion of the brother; A fixed shaft coupled to the support shaft; The lower clamping is fixed and the clamping fixing member coupled to the fixed shaft; It characterized in that it comprises.

In addition, according to the Brader replacement device of the present invention, the clamping fixing member is formed with a through-hole through which a fixed shaft is coupled to the center, and a body portion rotatably seated on an upper portion of the center post, and a body portion to support the lower clamping ring. It characterized in that it comprises a plurality of wing portions extending from the radially outward.

In addition, according to the Brader replacement device of the present invention, the plurality of wing portions are formed in a position where interference does not occur with the fastening bolts of the lower clamping, and the body portion has a form protruding downward to be thicker than the wing portions. It is characterized by having.

In addition, according to the brother replacement device of the present invention, the lower clamping lower body is formed in a ring shape with a groove into which the wing portion of the clamping fixing member is inserted into the lower surface, and is coupled to and fixed to the clamping fixing member. Wow, the lower clamping upper body is supported by the lower clamping lower body and the lower clamping upper body is inserted from the lower part of the lower clamping lower body and the lower clamping upper body fixing the lower ear portion of the brader together with the lower clamping lower body It characterized in that it comprises a plurality of fastening bolts for integrally coupling the lower clamping upper body.

In addition, according to the bradder replacement device of the present invention, the upper clamping is an upper clamping upper body formed in a ring shape, and is fixed to the upper end of the support shaft and the upper clamping lower body is fixed to the upper ear portion of the Brader It characterized in that it comprises a plurality of fixing bolts fastened to the upper clamping lower body through the upper clamping upper body so that the upper clamping lower body and the upper clamping upper body and the upper clamping lower body are integrated.

As the lower clamping ring is supported and fixed to the clamping fixing member rotatably installed with respect to the center post, the Brother replacement device of the present invention can be replaced while rotating the lower clamping ring when replacing the aged bracket. It has the effect of securing the safety and improving the convenience of work.

In addition, according to the Brader replacement device of the present invention, when the lower clamping member is seated, the lower clamping lower body is fixed to the clamping fixing member, because the wing portion engaging the lower clamping is provided on the clamping fixing member. , In the process of assembling and moving the lower clamping lower body, there is an effect of minimizing damage, stamping and wear of the lower clamping lower body.

In addition, according to the brother replacement device of the present invention, as the body portion of the clamping fixing member is formed thicker than the wing portion, the clamping fixing member is stably coupled to the fixing shaft, thereby improving safety.

In addition, according to the Brader replacement device of the present invention, since both the upper clamping ring and the lower clamping ring are formed of a dual structure of the upper body and the lower body, there is an effect that the installation and removal of the bladder becomes easy.

1 is a configuration diagram showing a conventional Brader mounting device.
Figure 2 is a schematic diagram showing a replacement apparatus according to the present invention.
Figure 3 is an enlarged view showing a lower clamping and clamping fixing member which is a main part of the present invention.
4 is a plan view and a side view of a clamping fixing member according to the present invention.

Hereinafter, with reference to the accompanying drawings, it will be described with respect to the brother replacement device of the present invention.

Figure 2 is a schematic diagram showing a replacement device according to the present invention, Figure 3 is an enlarged view showing a lower clamping and clamping fixing member which is a main part of the present invention, Figure 4 is a clamping according to the present invention It is a top view and a side view of a fixing member.

Brader replacement device according to the present invention, as shown in Figures 2 to 4, including the lower clamping 10, the upper clamping 20, the clamping fixing member 30 and the fixing shaft 40 Is done.

The lower clamping ring 10 is for fixing the lower ear portion of the brother using the mounting groove, and is formed in a ring shape with a groove into which the wing portion 32 of the clamping fixing member 30 is inserted in the lower surface. The lower clamping lower body 11 is fixedly coupled to the clamping fixing member 30 and supported by the lower clamping lower body 11 and the lower clamping lower body 11 together with the lower clamping lower body 11 The lower clamping upper body 12 for fixing the portion, and a plurality of inserting from the lower portion of the lower clamping lower body 11 to integrally couple the lower clamping lower body 11 and the lower clamping upper body 12 It includes a fastening bolt (13).

The upper clamp ring 20 is installed on the top of the combined support shaft 60 via a bearing 55 to the center post 50 of the vulcanizer to fix the upper ear portion of the brother, and is formed in a ring shape The upper clamping upper body 21 and the upper clamping lower body 22 fixed to the upper end of the support shaft 60 and fixing the upper ear portion of the brother together with the upper clamping lower body 21, and the upper clamp The ring upper body 21 and the upper clamping lower body 22 include a plurality of fixing bolts 23 which are fastened to the upper clamping lower body 22 through the upper clamping upper body 21 so as to be integrated. .

The clamping fixing member 30 is installed on the fixing shaft 40 coupled to the support shaft 60 to fix the lower clamping 10, as shown in FIG. 4, the fixing shaft 40 in the center ) Is formed through-hole 33 is coupled to the body portion 31 that is rotatably seated on the top of the center post 50, and the radially outer side from the body portion 31 to support the lower clamping (10) It includes a plurality of wing portions 32 extending.

The wing part 32 is formed at a position that does not interfere with the fastening bolt 13 of the lower clamping 10, and the body part 31 has a shape protruding downward to be thicker than the wing part 32 It is preferred.

The Brader replacement device of the present invention configured as described above is installed as follows.

A fixed shaft 40 is installed on the support shaft 60 rotatably coupled to the center post 50 of the vulcanizer, and the clamping fixing member 30 is coupled to the fixed shaft 40 to clamp it. 30 is to be rotatably seated on the top of the center post (50).

The clamping fixing member 30 has a structure in which a plurality of wing portions 32 protrude in the radial direction of the body portion 31, and the body portion 31 is thicker and protrudes downward than the wing portions 32. As having, the body portion 31 is stably coupled to the fixed shaft 40.

Subsequently, the lower portion of the clamping lower body 11 is clamped to the clamping fixing member 30 so that the wing portion 32 of the clamping fixing member 30 is formed on the bottom side of the lower clamping lower body 11. Combine.

In this way, the wing portion 32 of the clamping fixing member 30 is inserted into and engaged with the groove of the lower clamping lower body 11, so that the clamping fixing member 30 and the lower clamping lower body 11 are It is integrated. Therefore, the lower clamping lower body 11 is fixed to the clamping fixing member 30 to prevent relative movement and departure of the lower clamping lower body 11 relative to the clamping fixing member 30 during rotational movement.

Subsequently, the lower clamping upper body 12 is inserted from the upper side of the support shaft 60, the lower clamping lower body 11 is rotated to match the bolt coupling portions on both sides, and then the fastening bolt 13 is lower clamped. By inserting from the bottom of the lower body 11 and fastening to the lower clamping upper body 12, the installation of the lower clamping 10 is completed.

As such, as the fastening bolt 13 is fastened while rotating the lower clamping lower body 11, the movement of the operator is minimized and the assembly time is shortened.

And the upper clamping lower body 22 is coupled to the upper end of the support shaft 60, and the upper clamping upper body 21 is positioned above the upper clamping lower body 22 to match their bolted joints. After the installation of the upper clamping 20 is completed by combining the upper clamping upper body 21 and the upper clamping lower body 22 using the fixing bolt 23.

Finally, in a state where the fixing bolt 23 is loosened to some extent, the upper ear portion of the brother is coupled to the mounting groove of the upper clamping ring 20, and then the fixing member 23 is tightened to tighten the bracket to the upper clamping ring 20. Is to be fixed, the mounting groove of the lower clamping (10) is coupled to the lower ear of the brother, and then fastening the fastening bolt (13) to fix the bracket to the lower clamping (10) so that the bracket is mounted. Complete.

Next, a description will be given of the operation of replacing the aged Brader using the Brader replacement device of the present invention.

After loosening the fixing bolt 23 of the upper clamping ring 20 to some extent, the upper ear portion of the aged brasser is pulled in the radial direction to separate the brother from the upper clamping ring 20, and the lower clamping ring 10 is provided. After loosening the fastening bolt 13 of the to some extent, pull the lower ear portion of the aged brass in the radial direction to separate the bracket from the lower clamping 10. Subsequently, the upper clamping ring 20 is separated from the support shaft 60, and the aged Brader is completely separated by pulling the separated Brother in the upward direction of the Support shaft 60.

Subsequently, the prepared new brother is inserted into the upper side of the support shaft 60, and the upper clamping 20 is coupled to the support shaft 60. And after placing the lower ear portion of the brother in the mounting groove of the lower clamping (10) by using a fastening bolt (13) to engage the lower clamping lower body 11 and the lower clamping upper body 12, the brother Make sure that the lower ear of the is not separated.

Finally, after positioning the upper ear of the brother in the mounting groove of the upper clamping 20, the upper clamping lower body 22 and the upper clamping upper body 21 are engaged by using a fixing bolt 23 By replacing the upper ear portion of the bladder, the replacement of the bladder is completed.

As described above, as the lower clamping ring 10 is rotatably fixed by the fixing shaft 40 and the clamping fixing member 30, the replacement of the Brader becomes easy, and the replacement time is easy. This is shortened. At this time, if a new Brader to be replaced is placed in front of the vulcanizer, the replacement time of the aged Brader can be further shortened.

Although described and illustrated in connection with an embodiment for illustrating the technical idea of the present invention, the present invention is not limited to the configuration and operation as described above, and deviates from the scope of the technical idea described in the claims. It will be understood by those skilled in the art that many changes and modifications to the present invention are possible without this. Accordingly, all such suitable modifications and corrections and equivalents should be considered to be within the scope of the present invention.

10...lower clamping ring
11... Lower clamping lower body
12... Lower clamping upper body
13...fastening bolt
20...upper clamp ring
21... upper clamping upper body
22...Upper clamping lower body
23...Fixed bolt
30... clamping member
31...Body
32...wing
33...Through
40...Fixed shaft
50...Center Post
55...Bearing
60... support shaft

Claims (3)

The lower clamping ring 10 for fixing the lower ear portion of the brother and the upper portion for fixing the upper ear portion of the bracket is installed on the upper end of the support shaft 60 coupled via the bearing 55 to the center post 50 Consists of a clamping ring (20), a fixed shaft (40) coupled to the support shaft (60), and a lower clamping (10) fixed to the clamping ring (30) coupled to the fixed shaft (40). And
Clamping fixing member 30,
The through-hole 33 to which the fixed shaft 40 is coupled to the center is formed, the body portion 31 rotatably seated on the top of the center post 50; And
A plurality of wing portions 32 extending radially outward from the body portion 31 to support the lower clamping ring 10;
It characterized in that consisting of a replacement device for the brother. The method according to claim 1,
The plurality of wing parts 32 are formed in a position where interference does not occur with the fastening bolt 13 of the lower clamping ring 10,
The body portion 31 is a blade replacement device characterized in that it has a form protruding to the lower side to be thicker than the wing portion (32). The method according to claim 1 or 2,
The lower clamping ring 10 is formed in a ring shape with a groove into which the wing portion 32 of the clamping fixing member 30 is inserted on the bottom side, and the lower clamping lower portion coupled to and fixed to the clamping fixing member 30. The lower clamping upper body 12 which is supported by the lower clamping lower body 11 together with the lower clamping lower body 11 and the lower clamping upper portion 12 of the brother, and the lower clamping It is inserted from the lower portion of the lower body 11, the bracket replacement device characterized in that it comprises a plurality of fastening bolts (13) integrally coupling the lower clamping lower body (11) and the lower clamping upper body (12) .

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