JP2000280263A - Vulcanization apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent an extruded article from being deformed and a pattern on a belt conveyor side from being transferred and quality of a product from being fluctuated by ununiform vulcanization in a vulcanization process. SOLUTION: A vulcanization apparatus 1 is an apparatus which applies vulcanization treatment to an extruded article G extruded from an extrusion head 21 of an extruder 2. In this case, a first heating part 3 which is constructed into a frame body 10 standing in the vertical (longitudinal) direction and is arranged along the vertical passage where the extruded article G extruded upward from the extrusion head 21, pass and and performs heating treatment of the extruded article G, a direction-reversing part 5 which pulls upward the extruded article G passed through the first heating part 3 and then, reverses its direction downward and a second heating part 4 which is arranged along the vertical passage where the extruded article G extruded downward through the direction-reversing part 5 passes and performs heating treatment of the extruded article G are provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vulcanizing apparatus and a vulcanizing method for vulcanizing an extruded product in a process of manufacturing an extruded product such as a rubber hose.

[0002]

FIG. 9 is a view showing a conventional horizontal vulcanizing apparatus. In the figure, a conventional vulcanizing apparatus 107 includes a belt conveyor 105 that passes through the inside thereof in a horizontal direction, and a plurality of heaters 108 arranged above the belt conveyor 105.
An extruded product 104 laterally extruded from an extrusion head 103 of an extruder 102 is a belt conveyor 1
When the extruded product 104 is conveyed at 05, the extruded product 104 is heated by a heater 108 and vulcanized, and the plastic material is changed to an elastic material and sent out to the next step.

[0003]

However, as in the case of the conventional horizontal vulcanizing apparatus 107 described above, the extruded product 1 extruded.
04 is carried on the belt conveyor 105,
The extruded product 104 is deformed by its own weight. If the extruded product 104 has a round shape, it becomes flat as shown in FIG. In the case of a shape, the shape is broken as shown in FIG.

Further, since the extruded product 104 is received by the belt conveyor 105, the contact surface of the extruded product 104 with the belt conveyor 105 is easily deformed flat, and the pattern on the surface of the belt conveyor 105 is changed. May be transferred.

Further, since the extruded product 104 is heated from above, it is difficult to receive heat at the lower part of the extruded product 104, and therefore, it is not uniformly vulcanized and the product quality varies.

[0006] The present invention has been proposed in view of the above,
In the vulcanization process, a vulcanizing apparatus capable of preventing deformation of an extruded product, transfer of a pattern on a belt conveyor side, and prevention of uneven product quality due to uneven vulcanization. The purpose is to do.

[0007]

According to one aspect of the present invention, there is provided a vulcanizing apparatus for vulcanizing an extruded product, the extruder extruding the extruded product upward. And a first heating unit disposed along a path through which the extruded product extruded from the extruder passes to heat the extruded product, and the extruded product passed through the first heating unit is pulled upward. It is characterized by having a direction reversing part for reversing backward and downward, and a second heating part arranged along a path through which the extruded product extruded from the direction reversing part passes and heat-treats the extruded product. .

According to a second aspect of the present invention, in addition to the configuration of the first aspect of the present invention, the direction reversing portion is arranged substantially semicircularly and is driven by a motor. The extrusion-molded article is guided by the rollers and reverses the direction.

According to a third aspect of the present invention, in addition to the configuration of the second aspect of the present invention, the roller group has a first half-circumferential shape and is driven by one motor. It is characterized by comprising an ascending-side roller group and a descending-side roller group which forms the latter half of a quarter circle and is driven by one motor.

According to a fourth aspect of the present invention, in addition to the configuration of the second aspect of the invention, each of the rollers constituting the roller group has a groove having a shape close to the R shape of the extruded product. , Is characterized.

Further, the invention according to claim 5 is provided with a centering mechanism on each of the entrance side and the exit side of the direction reversing section, which can move the respective rollers on the entrance side and the exit side in the horizontal direction.
It is characterized by:

According to a sixth aspect of the present invention, in the vulcanization method for vulcanizing an extruded product, the extruded product extruded from the extruder is advanced upward along a vertical path. After that, the direction is reversed, and it is advanced downward along the vertical path, and when the extruded product is in the upward vertical path and the downward vertical path, the extruded product is subjected to a heat treatment and vulcanized. It is characterized by.

[0013]

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

FIG. 1 is a front view of a vulcanizing apparatus according to the present invention, and FIG.
Is a side view thereof. In the figure, a vulcanizing apparatus 1 constitutes a part of an apparatus for manufacturing an extruded product (for example, a rubber hose), and is an apparatus for vulcanizing an extruded product G extruded from an extruding head 21 of an extruder 2. is there. This vulcanizing device 1
Is formed on the frame 10 erected in the vertical (longitudinal) direction, is arranged along a vertical path through which the extruded product G extruded upward from the extrusion head 21 passes, and heat-processes the extruded product G. 1 heating unit 3, a direction reversing unit 5 that pulls up the extruded product G that has passed through the first heating unit 3 and then reverses it downward, and an extruded product G extruded downward from the direction reversing unit 5. A second heating unit 4 that is disposed along a vertical path that passes through and heat-treats the extruded product G.

The extruder 2 extrudes an extruded product (eg, a pressure-resistant rubber hose) G formed by extruding a molding material (eg, a rubber material) upward from an extrusion head 21.

The first heating section 3 of the vulcanizing apparatus 1 is configured by connecting three stages of heater units 31 in the vertical direction.
Each heater unit 31 is configured by arranging a plurality of, for example, U-shaped heating elements 32 in a circumferential shape, and providing a cylindrical body 33 made of transparent heat-resistant glass on the inner peripheral side of the heating elements 32. Extruded product G in which far infrared rays radiated from 32 pass through cylindrical body 33 and are pulled up in the center of cylindrical body 33.
Is evenly heated. The heating temperature at this time is about 250C to 500C. On the other hand, the second heating unit 4
Also has substantially the same configuration as the first heating unit 3,
The stepped heater units 41 are connected in the vertical direction so that the far infrared rays emitted from each heating element 42 pass through the cylindrical body 43 and uniformly heat the extruded product G descending in the center of the cylindrical body 43. Has become.

Further, a shutter 35 which can be opened and closed is provided on each upper portion of the heater unit 31 constituting the first heating section 3, and when the shutter 35 is closed, the heat of the heater unit 31 is changed to the upper heater. Movement to the unit 31 is prevented, and the temperature distribution in the vertical direction of the first heating unit 3 can be more finely controlled. Similarly to the first heating unit 3, a shutter 45 is provided also on each upper part of the heater unit 41 constituting the second heating unit 4, to prevent the temperature from rising toward the upper stage side, and to prevent the temperature from rising in the vertical direction. Can be controlled more finely.

A delivery roller 99 is provided downstream (lower side) of the second heating section 4, and a further pulling device (not shown) is provided further downstream of the delivery roller 99. The extruded product G is pulled out while being guided by a delivery roller 99, and is conveyed to the next step. If necessary, a vulcanizing device may be further provided downstream of the pulling device.

Next, the configuration of the direction reversing unit 5 will be described with reference to FIGS.

FIG. 3 is a front view of the direction reversing unit, FIG. 4 is a partially enlarged view of the centering mechanism of FIG. 3, FIG. 5 is a top view of the direction reversing unit, FIG. It is a front view showing a roller drive mechanism in a direction reversal part.

In these figures and FIGS. 1 and 2, the direction reversing section 5 is mounted on the uppermost plate 11 of the frame body 10 and accommodates a large number of rollers 61 arranged substantially semicircularly. It includes a roller storage box 6, a bearing 7 disposed on the back side of the roller storage box 6, and a roller driving unit 8 disposed on the rear side of the bearing 7.

Many rollers 6 in the roller storage box 6
1 is detachably attached to one end of the shaft 62. The shaft 62 and the rollers 61 are arranged in a semicircular shape in a front view along a traveling path of the extruded product G,
The front-stage quarter-circle roller 61 is configured as an upside roller group 6A, and the rear-stage quarter-circle roller 61 is configured as a downside roller group 6B. Roller 61
As shown in FIG. 8, an extruded product G having an R groove close to the R shape is used.

Further, an inlet hole 12 and an outlet hole 13 through which the extruded product G can pass are formed in the bottom surface of the roller storage box 6 and the uppermost plate 11 on which the roller storage box 6 is mounted. The extruded product G that has passed through the first heating unit 3 enters the roller storage box 6 from the inlet hole 12 and exits to the second heating unit 4 from the outlet hole 13.

As shown in FIG. 1, two doors 6m and 6n are hinged to the roller storage box 6, and can be opened and closed by a handle 97. Further, four fire extinguisher mounting holes 98 are provided.

The above-mentioned bearing portion 7 is a pair of main bearing plates 71 and 72 disposed so as to face each other, and a third shaft 623A from the inlet hole 12, a third shaft 623B from the outlet hole 13, and a space therebetween. Each shaft 62 is supported. The pair of inlet-side bearing plates 73A, 74A are connected to the main bearing plates 71, 72 on the third shaft 623A from the inlet hole 12 side.
A third shaft 623A is rotatably supported by a third shaft 623A via a bearing (not shown), and two shafts 621A and 621 from the inlet hole 12 side.
2A is supported. Similarly, the pair of outlet-side bearing plates 73B, 74B are connected to the main bearing plates 71, 72 on the third shaft 623B from the outlet hole 13 side.
The second shaft 623B is rotatably supported by a third shaft 623B via a bearing 68B, and also supports two shafts 621B and 622B from the outlet hole 13 side.

The bearing 7 has a centering mechanism 7A on the inlet hole 12 side and a centering mechanism 7B on the outlet hole 13 side. Note that the alignment mechanisms 7A and 7B are
Only the arrangement position is different and the configuration is the same. Therefore, only the outlet-side alignment mechanism 7B will be described here, and the entrance-side alignment mechanism 7A will be described.
In the drawing, B of the reference numeral attached to each component is rewritten to A, and the description is omitted.

As shown in FIGS. 3, 4, 5, and 6, the centering mechanism 7B includes three shafts 62 on the outlet hole 13 side.
1B, 622B, and 623B are provided as targets, and a centering handle 64B supported by a support 69B, a screw portion 66B connected to the centering handle 64B by a universal joint 65B, and a screw portion 66B are provided. A nut 67B that is screwed, and a pair of outlet-side bearing plates 73B, 7 that are integrally connected to the nut 67B.
4B. And the alignment handle 6
When the 4B is rotated, the screw portion 66B rotates via the universal joint 65B, and the nut 67B moves along the screw portion 66B according to the rotation of the screw portion 66B. In response to the movement of the nut 67B, the pair of outlet-side bearing plates 73B and 74B rotate around the third shaft 623B from the outlet hole 13 side (the position indicated by the alternate long and short dash line in FIG. 4). Position), the rotation causes the second shaft 622B and the first shaft 621B to move in the left-right direction as shown by the arrow Z in FIG. In accordance with the movement of the shafts 622B, 621B, the rollers 612B, 611B attached to one ends of the shafts 622B, 621B move.

A motor 81 and a speed reducer 83 connected to the output shaft of the motor 81 are mounted on the uppermost plate 11 of the frame body 10 in correspondence with the upward roller group 6A. In correspondence with the roller group 6B, a motor 82,
A reduction gear 84 connected to the output shaft of the motor 82 is mounted. These motors 81, 82, reduction gear 83,
Reference numeral 84 denotes the roller driving unit 8.

Sprockets 85 and 86 are attached to the output shafts of the reduction gears 83 and 84, while sprockets 63 are attached to the other ends of the shaft 62, and these sprockets 85, 86 and 63 are all the same. They are arranged in a vertical plane. In addition, tension adjusting sprockets 91 and 92 are arranged on the same vertical plane as shown in FIG. The shaft 6 belonging to the upside roller group 6A
7, a chain C1 is wound around each sprocket 63, the sprocket 85 on the side of the reduction gear 83, and the sprocket 91 for tension adjustment, as shown in FIG.
Transmits the rotational drive of the motor 81 to the upstream roller group 6.
The respective rollers 61 of A are rotated. On the other hand, the chain C2 is wound around each sprocket 63 of the shaft 62 belonging to the downstream roller group 6B, the sprocket 86 on the speed reducer 84 side, and the sprocket 92 for tension adjustment, and the chain C2 transmits the rotation drive of the motor 82. Then, each roller 61 of the downstream roller group 6B is rotated.

The tension adjusting sprockets 91, 92
Swings with the weights of the weights 95 and 96 via the shafts 93 and 94, and as will be described later, even if a part of the large number of sprockets 63 changes its position, the chain C1 responds to the change. , C2 and the tension of the chains C1, C2
2 prevents deflection.

When the first extruded product G is pushed upward from the extrusion head 21 of the extruder 2 in the vulcanizing apparatus 1 having the above configuration, the extruded product G is supplied to each heater unit 31 of the first heating unit 3. It is pulled up through the center of.
In order to pull up the first extruded product G, a vulcanized extruded product, wire, or the like is used as a dummy from the outlet of the extrusion head 21 through the first heating unit 3 and the roller storage box 6.
, Each of the rollers 61, the second heating unit 4, the delivery roller 99,
And the first extruded product G is connected to the dummy.

The extruded product G is extruded from the extruder 2,
When the leading end is connected to the dummy, the motors 81 and 82 of the direction reversing unit 5 are driven to rotate, and the respective rollers 61 are accordingly driven.
Rotates and pulls the extruded product G upward. In this case, the pulling device pulls the dummy from the rear side. As described above, the extruded product G is pulled up through the center of the cylindrical body 33 of each heater unit 31 of the first heating unit 3 and is vulcanized to change from a plastic body to an elastic body. Subsequently, the roller enters the roller storage box 6 through the inlet hole 12, and while being guided by the rollers 61 of the ascending roller group 6A, changes its traveling direction from an upward vertical direction to a horizontal direction. While being guided by 61, the traveling direction is changed from the horizontal direction to the downward vertical direction. Then, it enters the second heating unit 4 from the outlet hole 13 and descends through the center of the cylindrical body 43 of each heater unit 41 of the second heating unit 4, and the vulcanization process is further continued in the second heating unit 3. Thus, the change from the plastic body to the elastic body is sufficiently achieved, and finally the sheet is fed to the next step while being guided by the feed roller 99.

If the extruded product G is hollow, the extruded product G is provided inside the extrusion head 21 of the extruder 2 in addition to the vulcanization treatment in the first and second heating units 3 and 4. Alternatively, hot air may be sent from the nipple holder to the hollow portion of the extruded product G, and vulcanization may be performed from the hollow inner surface.

As described above, in this embodiment, the vulcanizing apparatus 1 is of a vertical type, and the extruded product G is extruded upward.
No flattening or crushing occurs due to its own weight, so that deformation of the extruded product G can be prevented, and the extruded product G can have a stable size and shape.

Further, since the extruded product G is vulcanized without coming into contact with other members, it is possible to prevent a pattern on another member (for example, a belt conveyor) from being transferred. The extruded product G comes into contact with the roller 61 when it enters the roller storage box 6, but at that time most of the vulcanization has been completed, and even if there is a pattern on the roller 61, there is no transfer. .

Further, since the vulcanizing apparatus 1 is of a vertical type, the site area can be greatly reduced as compared with the conventional horizontal type, and the direction is reversed by the direction reversing section 5, so that the vertical direction is achieved. The distance in the direction can be reduced to half, and the vulcanizing apparatus 1 can be significantly reduced in size.

Further, when the extruded product G passes through the first and second heating sections 3 and 4, the extruded product G is made to pass through the center of the inside of the cylindrical bodies 33 and 43. Therefore, uniform vulcanization treatment is performed, and variation in product quality can be suppressed.

When the extruded product G is pulled out of the center of the cylindrical body 33 in the first heating section 3, the centering handle 64A is turned to adjust the position of the roller 611A, and the position of the cylindrical body 33 is adjusted. Similarly, when the extruded product G descends from the center of the cylindrical body 43 in the second heating unit 4 and descends, the centering handle 64B is turned and the roller 611 is rotated.
By adjusting the position of B, it is possible to adjust the position so as to pass right through the center of the cylindrical body 43. As described above, since the extruded product G can always be positioned at the center of the inside of the cylindrical bodies 33 and 43, uniform vulcanization by uniform heating can be reliably performed.

In the first and second heating units 3 and 4,
Since the vulcanization of the extruded product G is performed inside the cylindrical bodies 33 and 43 made of permeable heat-resistant glass, the gas generated by the vulcanization does not directly touch the heating elements 32 and 42 and generates heat. It is possible to reliably prevent the bodies 32 and 42 from reacting and deteriorating with the gas body, and thus the heating elements 3
The life of 2,42 can be extended.

When the temperature is increased, the heating elements 32, 42
In the past, a rise in temperature was suppressed because of the generation of a gas that rapidly deteriorated the gas. However, as described above, the gas and the heating elements 32 and 42 did not come into contact with each other, and Since 32 and 42 can be protected, the vulcanization treatment can be performed at a sufficiently high temperature (for example, 800 ° C.), so that the change from a plastic body to an elastic body can be performed more reliably and quickly. Also, the vulcanization treatment can be completed sufficiently even if the lengths of the first and second heating units 3 and 4 are reduced,
Therefore, it can contribute to downsizing of the vulcanizing apparatus 1.

As for the miniaturization of the vulcanizing apparatus 1, when extruded products are extruded from an extruder, they are kept at a high temperature.
There is an extruder head (shear head) that can accelerate vulcanization immediately at the time of extrusion, but by using this extruder head together, the length of the first and second heating units 3 and 4 can be reduced. Can be shortened, and the size can be reduced from this point as well.

Further, the heating elements 32 and 42 are connected to the cylindrical body 33,
43, the heat generator 32,
Thus, it is possible to easily access, clean, and perform maintenance.

Each roller 61 in the roller storage box 6
Is composed of an upside roller group 6A and a downside roller group 6B, and is driven to rotate by separate motors 81 and 82, respectively. Conventionally, the number of rotations of the motors 81 and 82 on the ascending and descending sides may be controlled in accordance with expansion and contraction, and the pulling force on the pulling device side may be controlled as necessary. In the case of the system, the extruded product G meanders on the belt conveyor due to the expansion and contraction, and sometimes drops from the belt surface. Such meandering and dropping can be reliably prevented.

Further, the roller 61 is provided with the R
Since the one with the R groove close to the shape was used,
The extruded product R is transported while being fitted to the roller 61, and from this point, the deformation of the extruded product G can be prevented.

In the above description, each roller 61 is composed of the upside roller group 6A and the downside roller group 6B. However, this may be made into one roller group and driven by one motor. . In this case, the response to the expansion and contraction of the extruded product G can be performed by controlling both the pulling device and one motor of the roller group.

A motor may be provided for each of the rollers 61, or one motor may be provided for a plurality of rollers.
By driving the motor, the extruded product G can be configured to cope with expansion and contraction.

Further, in the above description, the shape of the extruded product G is described as a round shape, but various shapes such as a flat groove shape can be similarly applied.

Although a far-infrared heater that radiates far-infrared rays is used as a heat source for the first and second heating units 3 and 4, other heating elements such as a heater that radiates near-infrared rays and a nichrome wire heater are used. Hot air by hot air generator,
Alternatively, microwave energy or the like may be used alone or in combination. The type of heat source to be used is determined by comprehensively considering the physical properties of the object to be heated, the productivity required for the product, the cost, and the like.

Further, the first and second heating units 3 and 4 are constituted by three-stage heater units 31 and 41, respectively.
Instead of stages, an arbitrary number of stages, for example, four stages or five stages may be employed.

Further, the extruded product G is heated by both the first heating unit 3 and the second heating unit 4 to perform the vulcanization treatment, but the vulcanization treatment is completed only by the first heating unit 3. If so, a configuration in which heating is not performed in the second heating unit 4 and simply pulled downward may be employed.

Further, the extruded product G is pulled up by the motors 81 and 82 of the direction reversing unit 5.
It is also possible to arrange a heat-resistant lifting device in the middle of the heating unit 3 and lift the device by using the lifting device. By doing so, the lifting of the extruded product G can be adjusted more accurately in accordance with the elongation of the extruded product G.
Similarly, a heat-resistant pulling device may be arranged in the middle of the second heating unit 4 and pulled down by the pulling. By doing so, the tension of the extruded product G can be adjusted more accurately in accordance with the elongation of the extruded product G.

[0052]

Since the present invention has the above-described configuration,
The following effects can be obtained.

According to the first aspect of the present invention, the extruded product is extruded upward, so that even if the extruded product is affected by its own weight during the vulcanization, flattening and crushing due to its own weight do not occur. In addition, the deformation of the extruded product can be prevented, and the extruded product can have a stable size and shape.

Since the extruded product is vulcanized without coming into contact with other members, it is possible to prevent the pattern on the other member (for example, a belt conveyor) from being transferred. In addition, the vertical vulcanizing device can greatly reduce the site area compared to the conventional horizontal type, and the direction is reversed at the direction reversing part, reducing the vertical distance by half. , And the size of the vulcanizing apparatus can be significantly reduced.

Further, when the extruded product passes through the first and second heating sections, the extruded product passes through the center of the inside thereof.
The extruded product can be uniformly heated from the surroundings, so that a uniform vulcanization treatment can be performed and variation in product quality can be suppressed.

Further, in the inventions according to the second and third aspects, each roller is composed of an upside roller group and a downside roller group, and each is driven to rotate by a separate motor. Even if the extruded product expands and contracts during the sulfuric acid treatment, the number of rotations of the up-side and down-side motors can be controlled appropriately in accordance with the expansion and contraction. The extruded product meanders on the belt conveyor due to the expansion and contraction, and sometimes falls from the belt surface, but the meandering and dropping can be reliably prevented.

According to the fourth aspect of the present invention, since each of the rollers constituting the roller group has an R groove close to the R shape of the extruded product, the extruded product fits the rollers. The extruded product can be prevented from being deformed from this point.

According to the fifth aspect of the present invention, the centering mechanism capable of moving the rollers on the inlet side and the outlet side in the horizontal direction is provided on the inlet side and the outlet side of the direction reversing part.
When the extruded product passes out of the center in the first and second heating sections, the position of the roller can be adjusted by the centering mechanism and adjusted so as to pass exactly through the center. Uniform vulcanization treatment by heating can be reliably performed.

[Brief description of the drawings]

FIG. 1 is a front view of a vulcanizing apparatus according to the present invention.

FIG. 2 is a side view of the vulcanizing apparatus of the present invention.

FIG. 3 is a front view of a direction reversing unit.

FIG. 4 is an enlarged view of a part of FIG. 3 showing a centering mechanism;

FIG. 5 is a top view of a direction reversing unit.

FIG. 6 is a left side view of the direction reversing unit.

FIG. 7 is a front view showing a roller driving mechanism in a direction reversing unit.

FIG. 8 is a diagram illustrating a shape of a roller.

FIG. 9 is a view showing a conventional horizontal vulcanizing apparatus.

FIG. 10 is a view for explaining deformation of an extruded product in a conventional horizontal vulcanizing apparatus.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Vulcanizing apparatus 2 Extruder 3 1st heating part 4 2nd heating part 5 Direction reversal part 6 Roller storage box 6A Upside roller group 6B Downside roller group 6m Door 6n Door 7 Bearing part 7A Alignment mechanism 7B Alignment mechanism Reference Signs List 8 roller drive unit 10 frame body 11 top plate 12 inlet hole 13 outlet hole 21 extrusion head 31 heater unit 32 heating element 33 cylindrical body 41 heater unit 42 heating element 43 cylindrical body 61 roller 62 shaft 621A, 622A, 623A shaft 621B, 622B, 623B Shaft 63 Sprocket 64A Alignment handle 64B Alignment handle 65B Universal joint 66B Screw part 67B Nut 68B Bearing 69B Support base 71 Main bearing plate 72 Main bearing plate 73A, 74A Inlet bearing G 73B, 74B Outlet bearing plate 81 Motor 82 Motor 83 Reduction gear 84 Reduction gear 85 Sprocket 86 Sprocket 91 Tension adjustment sprocket 92 Tension adjustment sprocket 93, 94 Shaft 95, 96 Weight 97 Handle 98 Fire extinguisher mounting hole 99 Feed roller C1 Chain C2 Chain G Extruded product

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[Procedure amendment]

[Submission date] February 14, 2000 (2000.2.1
4)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Name of invention

[Correction method] Change

[Correction contents]

Title of the invention

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] Claims

[Correction method] Change

[Correction contents]

[Claims]

[Procedure amendment 3]

[Document name to be amended] Statement

[Correction target item name] 0007

[Correction method] Change

[Correction contents]

[0007]

According to one aspect of the present invention, there is provided a vulcanizing apparatus for vulcanizing an extruded product, the extruder extruding the extruded product upward. When a first heating section for heating the placed extrudate along a path extrusion extruded from the extruder passes, while being disposed substantially semi circular mode
The extruded product that has passed through the first heating section is pulled up, and then the roller group
A direction reversing unit for guiding and reversing the extruded product downward, a second heating unit disposed along a path through which the extruded product extruded from the direction reversing unit passes and heating the extruded product,
It is characterized by having.

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0008

[Correction method] Deleted

[Procedure amendment 5]

[Document name to be amended] Statement

[Correction target item name] 0009

[Correction method] Change

[Correction contents]

According to a second aspect of the present invention, in addition to the configuration of the first aspect of the present invention, the roller group has a first half-circumferential shape and is driven by one motor. It is characterized by comprising an ascending-side roller group and a descending-side roller group which forms the latter half of a quarter circle and is driven by one motor.

[Procedure amendment 6]

[Document name to be amended] Statement

[Correction target item name] 0010

[Correction method] Change

[Correction contents]

[0010] The invention according to claim 3 is the above-described claim.
In addition to the configuration of the invention described in 1 above, each of the rollers constituting the roller group has a groove having a shape close to the R shape of the extruded product.

[Procedure amendment 7]

[Document name to be amended] Statement

[Correction target item name] 0011

[Correction method] Change

[Correction contents]

Further, the invention according to claim 4 is provided with a centering mechanism on each of the entrance side and the exit side of the direction reversing section, which can move each of the rollers on the entrance side and the exit side in the horizontal direction.
It is characterized by:

[Procedure amendment 8]

[Document name to be amended] Statement

[Correction target item name] 0012

[Correction method] Deleted

[Procedure amendment 9]

[Document name to be amended] Statement

[Correction target item name] 0016

[Correction method] Change

[Correction contents]

The first heating section 3 of the vulcanizing apparatus 1 is configured by connecting three stages of heater units 31 in the vertical direction.
Each heater unit 31 is configured by arranging a plurality of, for example, U-shaped heating elements 32 in a circumferential shape, and providing a cylindrical body 33 made of transparent heat-resistant glass on the inner peripheral side of the heating elements 32. Extruded product G in which far infrared rays radiated from 32 pass through cylindrical body 33 and are pulled up in the center of cylindrical body 33.
Is evenly heated. The heating temperature at this time is about 250 ° C to 500 ° C. On the other hand, the second heating unit 4
Also has substantially the same configuration as the first heating unit 3,
The stepped heater units 41 are connected in the vertical direction so that the far infrared rays emitted from each heating element 42 pass through the cylindrical body 43 and uniformly heat the extruded product G descending in the center of the cylindrical body 43. Has become.

[Procedure amendment 10]

[Document name to be amended] Statement

[Correction target item name] 0044

[Correction method] Change

[Correction contents]

Further, the roller 61 is provided with the R
Since the one with the R groove close to the shape was used,
The extruded product G is conveyed while being fitted to the roller 61, and from this point, the deformation of the extruded product G can be prevented.

[Procedure amendment 11]

[Document name to be amended] Statement

[Correction target item name] 0056

[Correction method] Change

[Correction contents]

In the first and second aspects of the present invention, each roller is constituted by an upside roller group and a downside roller group, and each is driven to rotate by a separate motor. Even if the extruded product expands and contracts during the sulfuric acid treatment, the number of rotations of the up-side and down-side motors can be controlled appropriately in accordance with the expansion and contraction. The extruded product meanders on the belt conveyor due to the expansion and contraction, and sometimes falls from the belt surface, but the meandering and dropping can be reliably prevented.

[Procedure amendment 12]

[Document name to be amended] Statement

[Correction target item name] 0057

[Correction method] Change

[Correction contents]

According to the third aspect of the present invention, since each of the rollers constituting the roller group has an R groove close to the R shape of the extruded product, the extruded product fits the rollers. The extruded product can be prevented from being deformed from this point.

[Procedure amendment 13]

[Document name to be amended] Statement

[Correction target item name] 0058

[Correction method] Change

[Correction contents]

According to the fourth aspect of the present invention, the centering mechanism capable of moving the respective rollers on the inlet side and the outlet side in the horizontal direction is provided on the inlet side and the outlet side of the direction reversing part.
When the extruded product passes out of the center in the first and second heating sections, the position of the roller can be adjusted by the centering mechanism and adjusted so as to pass exactly through the center. Uniform vulcanization treatment by heating can be reliably performed.

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Claims (6)

[Claims] 1. A vulcanizing apparatus for vulcanizing an extruded product, comprising: an extruder for extruding the extruded product upward; and a vertical path along which the extruded product extruded upward from the extruder passes. A first heating unit that heats the extruded product that is disposed in a direction, a direction reversing unit that pulls up the extruded product that has passed through the first heating unit, and then turns the extruded product downward, and is extruded downward from the direction reversing unit. And a second heating unit disposed along a vertical path through which the extruded product passes to heat-treat the extruded product. 2. The apparatus according to claim 1, wherein the direction reversing part comprises a group of rollers arranged in a substantially semicircular shape and driven by a motor, and the extruded product is guided by the group of rollers to reverse the direction. The vulcanizing apparatus according to claim 1, wherein 3. The roller group has a first half of a quarter-circle shape and is driven by one motor, and a second half of a half-circle shape and has a downward side driven by one motor. The vulcanizing apparatus according to claim 2, comprising a roller group. 4. The vulcanizing apparatus according to claim 2, wherein each of the rollers constituting the roller group has a groove having a shape close to the round shape of the extruded product. 5. The centering mechanism according to claim 2, further comprising: a centering mechanism capable of moving the respective rollers on the entrance side and the exit side in the horizontal direction on the entrance side and the exit side of the direction reversing part. Vulcanizing equipment. 6. A vulcanization method for vulcanizing an extruded product, wherein the extruded product extruded from an extruder is advanced upward along a vertical path, and then its direction is reversed. And vulcanizing the extruded product by heat treatment when the extruded product is in an upward vertical path and a downward vertical path.