JPH10258433A - Flange separation apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a flange separation apparatus capable of simply separating a cylindrical mold from a flange member after the completion of vulcanization. SOLUTION: When a mold 6 is set to a predetermined position, at first, a rotary actuator is driven to release the engagement of the mold 6. At this time, the grasping of a flange member 7 by an electromagnet means or a sub- flange chuck means is continued. A thin cylinder 53 is driven accompanied by the lifting of the flange member 7 and the leading end part of a rotary arm member 52 is rotated so as to push down the mold 6. The mold 6 is separated from the flange part 7 by the push down force.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flange separating device for separating a flange member from a cylindrical mold after vulcanization molding with the flange member mounted on the cylindrical mold.

[0002]

2. Description of the Related Art Conventionally, when a rubber transmission belt is manufactured, a predetermined unvulcanized rubber sheet, cord, or the like is wound around a cylindrical mold to form a cylindrical rubber sheet (belt molded body). Vulcanization is performed by pressurizing and heating with pressurized steam from the inside and outside of a mold, and then the cylindrical rubber sheet is cut into a ring to form a rubber transmission belt as a finished product.

[0003] As a vulcanization method in such production, a vulcanization apparatus using a gasket method is known. In such an apparatus, a cylindrical mold in which the cylindrical rubber sheet is formed on the outer peripheral surface is lifted by a conveying means such as a hoist and carried into a cylindrical gasket housing, and a gasket sleeve on the inner peripheral surface of the gasket housing is provided. External pressure steam is introduced into the (elastic sleeve) from the inlet to expand the gasket sleeve and pressurize the cylindrical rubber sheet. In this state, internal pressure steam is introduced into the cylindrical mold from the upper end opening of the cylindrical mold, discharged from the lower end opening, and vulcanized by heating the cylindrical rubber sheet. And, in order to regulate the upper end surface of the cylindrical rubber sheet, a flange member is provided on the upper side of the cylindrical mold, and such a flange member is subjected to a cooling step together with the mold after vulcanization in the vulcanization line. It is conveyed, and only the flange member after the conveyance is returned to the vulcanization line.

[0004]

However, vulcanization in the vulcanization line causes the flange member to adhere to the end of the cylindrical rubber sheet and become difficult to separate, so that only the flange member is separated and returned to the vulcanization line. Even so, there is a possibility that the mold will be attached in a state of being stuck to the flange member.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to provide a flange separation device that can easily separate a cylindrical mold from a flange member after vulcanization.

[0006]

SUMMARY OF THE INVENTION According to the present invention, a vulcanization is performed in a state where a flange member for regulating an upper end portion of a cylindrical rubber sheet to be molded is mounted on a cylindrical mold, and after the vulcanization is completed, the cylindrical member is removed from the flange member. A flange separation device for separating a mold is presupposed, a base plate supported so as to be able to move up and down, a flange chuck means provided on the base plate to chuck a flange member, and the flange provided on the base plate, Mold holding means for displacing the cylindrical mold downward with respect to the flange member to be chucked by the chuck means is provided. Therefore, after vulcanization, at a predetermined position, the flange member is chucked by the flange chuck means, while the cylindrical mold is displaced downward, that is, in a direction away from the flange member by the mold pressing means. The mold is separated from the flange member.

The mold holding means is rotatably supported by the base plate, and has one end rotatably abuttable on the upper surface of the mold and a rotating arm member attached to the base plate. A driving unit is connected to the other end and drives the rotary arm member to rotate. Therefore, when the rotary arm member is rotationally driven by the driving means, one end of the rotary arm member is pressed against the upper surface of the mold, displacing the mold downward.

The flange chuck means has an electromagnet means which is attached to the base plate and which is detachably attached to an upper surface of the flange member. Therefore, the flange member is gripped by the attraction of the electromagnet means to the upper surface of the flange member.

The flange chuck means has a rotating claw member at a lower end portion having a locking claw that removably engages with the flange member by rotation, and is linked to the rotating claw member to rotationally drive the rotating claw member. Driving means. Accordingly, the rotating claw member is rotationally driven by the driving means, and the rotation causes the locking claw portion of the rotating claw member to be disengaged from the flange member.

[0010]

Embodiments of the present invention will be described below with reference to the drawings.

In FIG. 1 which shows a part of a gasket type vulcanizing apparatus, reference numeral 1 denotes a gasket type vulcanizing apparatus, which has a cylindrical outer cylinder 2 (gasket housing) having a fluid flow port 2a, And a resilient sleeve 4 (gasket sleeve) attached with a closed space 3 formed therein. A cylindrical mold 6 having a cylindrical rubber sheet 5 fitted on the outer peripheral surface thereof is provided inside the elastic sleeve 4, and a cylindrical rubber sheet 5 to be molded is provided above the mold 6. A flange member 7 is provided to regulate the upper end of the flange.

As shown in FIGS. 2 and 3, the flange member 7 has a cylindrical portion 7b having a thin portion 7a at its lower end for regulating an upper edge of the cylindrical rubber sheet 5, and a cylindrical portion 7b. An annular disk portion c mounted on the upper side;
b, and an annular portion 7d provided on the lower inner peripheral portion and abutting on the peripheral portion of the mold 6. A flange drop prevention rib 7e is provided near the upper end of the cylindrical portion 7b.

In addition, a pressure inlet 6a for introducing pressurized steam or the like for vulcanization into the inside of the mold is provided at the upper center of the cylindrical mold 6.

After vulcanization in the vulcanizing apparatus 1, the mold 6
Is taken out of the outer cylinder 2 together with the cylindrical rubber sheet 4 and the flange member 7, conveyed from the vulcanization end position to the cooling position, and the flange member 7 is removed and returned to the gasket 1. The transporting means provided is provided with the flange separation device 11 according to the present invention.

As shown in FIGS. 4 to 7, the flange separating device 11 includes a die chuck means 12 for gripping the pressure inlet 6a of the die 6, and a main chuck which is detachably attached to the upper surface of the flange member 7. An electromagnet means 13 which is a flange chuck means, a mold pressing means 14 for displacing the mold 6 downward with respect to the flange member 7 chucked by the electromagnet means 13, and a base plate 15 to which these are attached; The base plate 15 is attached to a suspending member 16 of a loader which extends vertically and is raised and lowered by a cylinder means (not shown).

The base plate 15 is connected to an upper base plate 15A connected to a lower end of the suspension member 16.
And a lower base plate 1 provided at a predetermined interval on the upper base plate 15A via a connecting member 15B.
5C.

The mold chuck means 12 is provided at the center of the lower base plate 15C, and the electromagnet means 13 is provided at the periphery thereof. In addition, a sub-flange chucking means 17 for chucking the flange member 7 is provided on a peripheral portion of the upper base plate 15A to assist the electromagnet means 13 which is a main flange chucking means. Normally, the flange member 7 is chucked only by the electromagnet means 13, but only when the performance of the electromagnet means 13 is reduced for some reason, the sub-flange chuck means 17 causes the flange member 7 to drop. And functions as a chuck for gripping the outer peripheral edge thereof.

As shown in FIGS. 4 and 5, the mold chuck means 12 has a locking claw 21a at its lower end which is detachably engaged with the pressure inlet 6a of the cylindrical mold 6. Rotating claw members 21A, 21B, 21B, 21B, and each of the rotating claw members 21A, 21B, 21B, 21B is rotatably supported on the lower base plate 15C via bushes 22, 22, 22, 22. I have. Each rotating claw member 21
A, 21B, 21B, the outer gear 2 is provided at the upper end of 21B.
3, 23, 23, 23 are fixed, and the respective outer gears 23, 2
3, 23, 23 mesh with a central gear 24 rotatably supported by the lower base plate 15C.

One of the rotary claw members 21A has an extension shaft portion 21b which penetrates the upper base plate 15A and extends to the upper side thereof.
The upper end of 1b is connected via a helical coupling 26 to a rotation shaft 25a of a rotary actuator 25 disposed above the upper base plate 15A. Then, the rotary actuator 25 is linked to the four rotating claw members 21A, 21B, 21B, 21B, and the respective rotating claw members 21A, 21B, 21B, 21B are connected to the cylindrical mold 6.
, And functions as driving means for removably engaging the pressure introduction port 6a. Each rotating claw member 21A,
21B, 21B, and 21B are arrange | positioned so that load may be equally shared, and it is comprised so that a chuck | zipper may be "closed" at the time of a power failure.

As shown in FIG. 6, the electromagnet means 13 is connected to the lower base plate 15C via a bolt member 31.
An electromagnetic magnet 33 is attached to and fixed to a support member 32 suspended from the bolt member 31. When the electromagnetic magnet 33 hits the flange member 7, the bolt member 31 is adjusted so that the dimensions can be absorbed and the suction surface becomes uniform. And a spring 34 wound around the periphery of the body.

The sub-flange chuck means 1
7, the mold chuck means 1 as shown in FIGS.
As in the case of FIG. 2, a plurality of rotating claw members 41 having a locking claw portion 41a which is removably engaged with the flange member 7 at a lower end portion, and the rotating claw member 41 is connected via a bush 42 to the upper base plate 15A. It is supported rotatably.

The upper end of each rotary claw member 41 is connected via a helical coupling 44 to a rotary shaft 43a of a rotary actuator 43 disposed above the upper base plate 15A. Then, the rotary actuator 43 is linked to the rotating claw member 41 and
It functions as a driving means for driving the rotation. Each of the rotary claw members 41 is arranged so as to equally share the load, and is configured to be "closed" when a power failure occurs.

Further, as shown in FIG. 7, the electromagnet means 13 or the sub-
Mold holding means 18 is provided for enabling the mold 6 (pressure introducing portion 6a) to be displaced downward with respect to the flange member 7 held by the flange chuck means 17. Specifically, the mold holding means 18 is provided with the lower base plate 1.
On the lower surface side of 5C, a rotating arm member 52, one end of which can contact the upper surface of the mold 6, is rotatably supported via a supporting member 51. The other end of the rotating arm member 52 is connected to a piston rod 53a of a thin cylinder 53 (driving means) mounted on the upper side of the lower base plate 15A.
When the piston rod 53a is protruded, the contact between one end of the rotary arm member 52 and the upper surface of the mold 6 is released, and when the piston rod 53a is stored, one end of the rotary arm member 52 is The upper surface of the mold 6 is contacted and pressed.

Although not specifically shown, the lower base plate 15C has a temperature sensor for detecting the temperature of the mold 6, and a base plate 15 for detecting the deceleration and stop positions.
And a proximity switch for detecting a deceleration position and a stop position for controlling the lifting / lowering means (not shown).

Subsequently, the operation of the flange separating device 11 is described by using a loader (not shown) in which a vulcanized product (vulcanized cylindrical rubber sheet 5, mold 6, flange member 7) after vulcanization is completed. Is lifted from the inside of the outer cylinder 2 of the vulcanizing apparatus 1 and set on the transport base of the cooling line. Then, only the flange member 7 is separated from the mold 6 and returned into the outer cylinder 2 of the vulcanizing apparatus 1. The case where it is used in the process will be described.

First, the vulcanized product is transported by the loader onto the transport base of the cooling line. After the position is detected, the base plate 15
After being decelerated and stopped, the vulcanized product is set at a predetermined position on the transport base of the cooling line. Note that this loader has basically the same structure as the above-described loader except that it does not include the mold pressing means 18.

After the setting is completed, the rotary actuator 25 is driven to rotate the rotary claw member 21A, and the outer gear 23 and the center gear 24 are engaged with each other.
The other rotating claw members 21B, 21B, 21B are also rotated, and the engagement between the locking claw portions 21a of all the rotating claw members 21A, 21B, 21B, 21B and the pressure introducing portion 6a of the mold 6 is released. The grip of the mold 6 is released. At this time, the suction by the electromagnet means 13 and the sub-flange chuck means 1
7, the engagement between the rotary claw member 41 and the flange member 7 is maintained, and the gripping of the flange member 7 is continued.

After releasing the locking of the mold 6, the loader lifts the flange member 7. With the lifting of the flange member 7, the thin cylinder 53 is driven, and the piston rod 53 a is moved to the tip of the rotary arm member 52. Is displaced so as to rotate in a direction to push down the mold 6 downward.

As a result, while the flange member 7 is lifted, a force acts on the mold 6 in the remaining direction, and the mold 6 is separated from the flange member 7 without difficulty.
Only the flange member 7 is lifted by the loader, returned to the vulcanizing apparatus 1, and returned into the outer cylinder 2.

After the separation of the flange member 7, the piston rod 53a of the thin cylinder 53 is in a normal state in which it protrudes, and when the mold 6 is gripped by the mold chucking means 12, the rotating arm member 52 becomes It does not contact the mold 6.

[0031]

According to the present invention, as described above, after vulcanization is completed,
At a predetermined position, the flange member is gripped by the flange chuck means, and the mold is separated from the flange member by displacing the cylindrical mold downward by the mold pressing means. Since the member and the mold can be easily separated from each other and the mold member is pressed, no excessive force acts on the flange member.

The mold holding means rotates the rotating arm member by the driving means, presses one end of the rotating arm member against the upper surface of the mold, and displaces the mold downward. The structure allows the mold to be displaced downward to separate the mold from the flange member.

The mold chuck means rotationally drives the rotating claw member by the driving means, and rotates and engages the locking claw portion of the rotating claw member with respect to the locked portion of the cylindrical mold.
Since the mold is gripped, the mold can be easily gripped, and the space required for it is small.

Since the flange chuck means is an electromagnet means for gripping the flange member by being attracted to the upper surface of the flange member, the flange member can be easily gripped, and the rotary claw member is rotationally driven by the driving means. Since the rotation of the locking claw portion of the rotating claw member with respect to the flange member can be disengaged from the flange member, this is advantageous in safety measures.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a part of a gasket according to the present invention.

FIG. 2 is a sectional view of a flange member according to the present invention.

FIG. 3 is a plan view of the same.

FIG. 4 is a schematic plan view of a flange separation device according to the present invention.

FIG. 5 is a cross-sectional view showing the relationship between the flange separation device according to the present invention and a gasket.

FIG. 6 is an explanatory view of an electromagnet unit according to the present invention.

FIG. 7 is a schematic sectional view of a mold holding means according to the present invention.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 vulcanizing device 6 cylindrical mold 7 flange member 11 flange separating device 13 electromagnet means (main flange chuck means) 15 base plate 17 sub-flange chuck means 18 mold holding means 41 rotating claw member 41 a locking claw portion 43 rotary Actuator 52 Rotating arm member 53 Thin cylinder

Continuation of the front page (51) Int.Cl. ⁶ Identification symbol FI B29L 29:00 (72) Inventor Katsunori Tanaka 3-2-1-15 Meiwadori, Hyogo-ku, Kobe-shi, Hyogo BANDO CHEMICAL CO., LTD. (72) Inventor Noboru Yoshishima Inside Bando Chemical Co., Ltd., 3-2-1-15 Meiwadori, Hyogo-ku, Kobe City, Hyogo Prefecture (72) Inventor: Michihiro Takenaka 3-2-1-15 Meiwadori, Hyogo-ku, Kobe City, Hyogo Prefecture, Inside Bando Chemical Company ( 72) Inventor Masahide Naya 3-2-1-15 Meiwadori, Hyogo-ku, Kobe-city, Hyogo Prefecture Inside Bando Kagaku Co., Ltd. (72) Inventor Shoichi Nagai 3-2-115 Meiwadori, Hyogo-ku, Kobe-shi, Hyogo Bando Chemical Stock In company

Claims (4)

[Claims] 1. A flange separation for separating a cylindrical mold from a flange member after vulcanization in a state where a flange member for regulating an upper end portion of a cylindrical rubber sheet to be molded is mounted on the cylindrical mold. An apparatus, comprising: a base plate supported so as to be able to move up and down; a flange chuck means disposed on the base plate to chuck a flange member; and a flange member disposed on the base plate and chucked by the flange chuck means. And a mold pressing means for displacing the cylindrical mold downward. 2. The mold holding means is rotatably supported by the base plate so as to be rotatable, one end of which can be brought into contact with the upper surface of the mold by rotation, and the rotation arm attached to the base plate. 2. The flange separation device according to claim 1, further comprising a driving unit connected to the other end of the member and configured to rotationally drive the rotary arm member. 3. The flange separation device according to claim 1, wherein the flange chuck means includes an electromagnet means attached to the base plate and separably attracted to an upper surface of the flange member. 4. A rotating claw member having a locking claw portion at a lower end portion which is detachably engaged with a flange member by rotation, and a flange claw means which is linked to the rotating claw member to rotate the rotating claw member. 4. The flange separating device according to claim 3, further comprising a driving means for driving.