JP5280808B2 - String rubber vulcanizer - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vulcanizer made of a string shape rubber having a small-sized space wherein a first edge part of a material to be vulcanized is easily set forth in a passage of a vulcanizer. <P>SOLUTION: The vulcanizer is structured with a cylindrical transporting passage equipped with a plurality of folding parts, a heat generator covering the outer surface of the transporting passage, a transporting belt setting forth in such a way as to penetrate around a center axis of the passage and circulating an inner part and the outer part of the passage, a means for transporting the belt, and an attachment die which is set forth in such a way as to freely be attacked and detached and capable of synchronizing the transporting belt with driving of the material to be vulcanized, wherein the transporting means is structured with a driving pulley connected to a driving source and a sub-moving pulley set forth in the folding part of the transporting passage and a curving angle part at an outer side of the transporting passage, and wherein the sub-moving pulley are equipped with a ditch for fixing the transporting belt and a ditch for transporting the material to be vulcanized in parallel with each other, and further wherein the material to be vulcanized and the transporting belt are connected in parallel through the attachment die at a stage of setting forth the material to be vulcanized to the vulcanizer. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to a vulcanizing apparatus for continuously vulcanizing (crosslinking) long string-like rubber molded by extrusion molding.

  Sufficient heating temperature and time are required to continuously vulcanize a long string-like rubber extrusion (cured product) by passing it through a heating cylinder (furnace). When using a continuous vulcanizing apparatus having the above, there is a problem that the furnace (apparatus) becomes long and space is required, and for that reason, the heating volume becomes large, so as a conventional technique for solving this, for example, Inverted U-shaped continuous bridge installed in a vertical direction in which a rising cylinder part connected to an extruder, a curved reversing part connected to the rising cylindrical part, and a descending cylindrical part connected to the curved reversing part are formed in a bridge cylinder serving as a furnace An apparatus (Patent Document 1) and an inverted U-shaped vulcanization passage are formed in the same manner as described above, and a plurality of heating element units are arranged on the circumference along the passage, and a transparent heat-resistant glass is provided inside the heating element. A cylindrical body consisting of Far infrared rays transmitted through the cylindrical body, have been proposed, such as vulcanizer was uniformly heating an object to be vulcanized (Patent Document 2). According to these, the space of the apparatus can be reduced to some extent by the length of the furnace for vulcanization being halved in the length direction.

However, it is difficult to install the first portion of the vulcanized material in the vulcanization passage in the furnace without opening the furnace in the apparatus having such a folded portion. In the vulcanizing apparatus of Document 2, as a means for pulling up the first vulcanized material into the passage in the furnace, a pre-vulcanized extruded product, a wire or the like is used as a dummy from the outlet of the extrusion head to the first heating unit, the roller It is prepared over each roller of the storage box, the second heating section, the feed roller, and the pulling device, and the first vulcanized product is installed by connecting to the dummy. On the other hand, there is no mention in Cited Document 1.
Japanese Patent Publication No. 60-14448 JP 2000-280263 A

In the apparatus of the cited document, as described above, the space in the length direction is halved by the folded portion, and since the feeding in the vertical direction is performed, the installation space of the apparatus can be reduced to some extent. Depending on the circumstances of the building to install, the length in the height direction may be limited, so depending on the conditions, there is a concern that a sufficient length cannot be obtained, and it becomes higher in the height direction There is a problem that this is not always desirable for maintenance or the like.
Further, as a means for installing the tip portion of the vulcanized material in the vulcanization passage at the initial stage of vulcanization, the apparatus of Patent Document 2 uses a dummy as described above. There is no description of the means for attaching, and it is not a fundamental solution.
Furthermore, in the case of a ninety-nine fold structure having a plurality of folded portions, the vulcanization passage being more than U-shaped (one folded portion), the vulcanized material contacts the pulleys and rollers at each folding. Since the surface is reversed, the difficulty of installing the tip portion of the material to be vulcanized in the vulcanization passage in the first stage becomes more remarkable.
If the furnace is open, it is easy to install the tip of the vulcanized product in the furnace, but it is necessary to provide an opening / closing means, and during the installation, the temperature in the furnace is lowered. Since there are many inconveniences such as needing to be prepared, it cannot be said to be a preferable configuration.

  Therefore, the present invention provides a vulcanized string-like rubber that makes it easy to install the first end of the vulcanized material in the vulcanization passage even if the space of the entire apparatus is small and a plurality of folded portions are provided. An object was to provide a device.

  The string-like rubber vulcanizing apparatus of the present invention includes a plurality of folded portions, and covers a conveyance passage serving as a vulcanization furnace for a vulcanized material formed in a cylindrical shape and a cylindrical outer peripheral surface of the conveyance passage. A heating element that passes through a substantially central axis from the inlet to the outlet in the conveying path, is formed in an annular shape with the outside of the path, and is arranged in a manner to circulate inside and outside the conveying path, and the conveying belt Conveying means for driving, the conveying belt, and an attachment piece that can be detachably attached to the end of the vulcanized material, and that synchronizes the driving of the conveying belt and the vulcanized material, Specific examples of the transport means include a drive pulley provided outside the transport path, connected to a drive source, at least a folded portion inside the transport path, and a bending section outside the transport path. Driven pulley linked to the drive pulley The driven pulley includes a groove for mounting a conveyor belt (conveying) and a groove for conveying the vulcanized material in parallel, and the attachment is performed at the stage of attaching the vulcanized material to the apparatus. The vulcanized material and the conveyor belt are connected in parallel through the piece.

Each part of the means is preferably configured as follows.
-The cylindrical transport passage is composed of a plurality of folded portions and a plurality of straight portions connecting the folded portions, each of the straight portions being composed of one or a plurality of straight tubular members, The part is formed as a U-shaped cylindrical member or a housing having a space in which the driven pulley can be incorporated.
The heating element covering the outer peripheral surface of the transport passage is formed in a cylindrical shape and fits around the linear tubular member and the U-shaped tubular member, and is wound around the transport passage. Thus, heating from the entire circumference of the conveyance path is possible.
-The heat generating body which coat | covers the outer peripheral surface of the said conveyance path and this conveyance path may be formed so that it can be divided into 2 in an axial direction.
-The said conveyance path may be comprised integrally with the heat generating body which coat | covers an outer peripheral surface .

  Further, the string rubber vulcanizing apparatus of the present invention includes a conveying path serving as a vulcanizing furnace for a vulcanized material, which is provided with a plurality of folded portions on a heating plate and formed as a U-shaped groove, and covers the conveying path. , A cover that constitutes one surface of the transport passage, a heating element that is inserted into or embedded in the heating plate, and substantially passes through the central axis from the inlet to the outlet in the transport passage, and is annular with the outside of the passage. A transport belt formed and circulated inside and outside the transport passage, a transport means for driving the transport belt, the transport belt, and a vulcanized material end portion can be detachably mounted. A conveying belt and an attachment piece for synchronizing the drive of the vulcanized material, and a specific example of the conveying means is connected to a driving source provided outside the conveying path. A drive pulley and at least a return in the conveying path And a driven pulley interlocking with the drive pulley, which is provided in a bending portion outside the conveyance path, and the driven pulley includes a groove for carrying (conveying) a conveyor belt, and a groove for conveying a vulcanized material May be provided in parallel, and the vulcanized material and the conveyor belt may be connected in parallel through the attachment piece at the stage of attaching the vulcanized material to the apparatus.

Furthermore, each part of the above means is preferably configured as follows.
-Far-infrared coating is given to the inner surface of the conveyance path formed in the said cylindrical shape or a U-shaped groove.
The driving pulley and the driven pulley are provided with a conveyance protrusion, and the belt is provided with a hole that engages with the protrusion.
-The conveyance belt is provided with a piece receiving portion for connecting the attachment piece, and the attachment piece includes a locking means for the conveyance belt adapted to the piece reception portion, and the end of the vulcanized material. A retaining portion for retaining the vulcanized material, and when the vulcanized material is attached to the apparatus by the locking means and the retaining portion, the vulcanized material is engaged with the groove for conveying the vulcanized material. It is formed to become. As a specific example thereof, the piece receiving portion provided in the conveying belt is a hole continuously provided at an appropriate interval in the conveying belt, and the means for locking the conveying belt provided in the mounting piece includes: For example, the retaining portion of the vulcanized material is configured as a cylindrical portion that is inserted through the tip of the vulcanized material.

  According to the string rubber vulcanizing device of the present invention, by providing a plurality of folded portions, even if the conveying path is lengthened, the volume in the length direction of the device is not increased, and the space is compact and space-saving. It can be a device that does not take. In addition, the conveying path is composed of a plurality of linear cylindrical members and U-shaped cylindrical members, and the heating element is made of a member adapted to the members, and the length can be easily adjusted by connecting them together. And the conveyance path | route which has the space to the free width direction and length direction can be formed.

  Further, a driven pulley having a groove for conveying the conveyor belt and a groove for conveying the vulcanized material is provided, and the tip of the vulcanized material is placed at an arbitrary position of the conveyor belt conveyed by the driven pulley. By providing an attachment piece that is connected so as to be able to convey in synchronization with the conveyance belt, a plurality of folded portions are provided, and even the closed device (furnace) is attached to the first end of the vulcanized material. The tip of the vulcanized material can be easily installed in the vulcanizing passage by being connected to the conveying belt via the piece and moving in synchronization from the inlet to the outlet of the conveying passage.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a string rubber vulcanizing apparatus according to the present invention will be described below in detail with reference to the drawings.
FIG. 1 shows an overall configuration diagram of a first embodiment of the present invention. It should be noted that the drawings only describe configurations that are particularly relevant to the technology of the present invention, and are commonly used for heating devices and drive devices, such as temperature sensors, timers, various control devices, electrical wiring, and the like. Is omitted.
The string-like rubber vulcanizing apparatus of this example includes a plurality of straight cylindrical tubes 11 serving as straight portions and a U-shaped cylindrical tube 12 serving as a folded portion, and is formed into a ninety-nine fold shape. A cylindrical vulcanizing passage (vulcanizing furnace) 1 serving as a heating and conveying passage, a cylindrical band heater 2 for covering the entire outer periphery of the vulcanizing passage 1 and heating the inside of the vulcanizing passage; The vulcanization passage 1 is arranged in such a manner that it passes through the central axis from the inlet 14 to the outlet 15 of the vulcanization passage 1 and forms an annular shape with the outside of the vulcanization passage 1 and circulates inside and outside the vulcanization passage 1. A transport belt 3 for transporting the vulcanized product 7, a drive pulley 41 connected to a drive motor 5 serving as a drive source provided outside the vulcanization passage 1, and a folded portion inside the vulcanization passage 1. Interlocked with the drive pulley 41 provided in the traveling direction changing portion of the conveyor belt 3 outside the vulcanization passage 1 A plurality of driven pulleys 42, and a conveying means for driving the conveying belt 3 and the vulcanized material 7 interlocked with the conveying belt 3, and the conveying belt 3 and the end of the vulcanized material 7. An attachment piece 6 (see FIGS. 4 to 8) that can be detachably mounted and conveys the vulcanized material in synchronism with the drive of the conveying belt 3 and is basically formed by extrusion from an extruder. The inside of the vulcanization passage 1 from the vulcanization furnace inlet 14 to the outlet 15 is interlocked with the transported belt 3 circulated by the drive pulley 41 and the driven pulley 42 with the string-like rubber (cured material) 7 thus made. Vulcanization was carried out by heating and transporting, and after vulcanization, the string-like rubber (cured product) 7 was wound up by a winding device and recovered.

Next, the configuration of each part of this example will be described in detail.
FIG. 2 is a top view showing a configuration of a linear cylindrical tube serving as a vulcanization passage and a band heater serving as a heating element of this example, and FIG. 3 is a partial cross-section of a folded portion including the driven pulley of this example. The figure is shown. In FIG. 3, the driven pulley is not shown as a cross-sectional view for easy understanding.
The vulcanization passage 1 is formed as a ninety-nine fold-shaped passage composed of a plurality of folded portions (two in this example) and a straight portion, and each folded portion is made of a material such as metal having excellent thermal conductivity. The U-shaped cylindrical tube 12 and the straight portion were formed as a linear cylindrical tube 11, and the inner surface was formed by applying a far-infrared coating 13 for enhancing the heating effect. The straight cylindrical tube 11 is configured to connect a plurality of cylindrical tubes (11a, 11b, 11c, 11d) to form one straight passage. Thereby, a furnace having a desired length can be formed from a block of one cylindrical tube by connecting a desired number of short linear cylindrical tubes (11a, 11b, 11c, 11d). On the other hand, since the U-shaped cylindrical tube 12 needs to accommodate a driven pulley 42 which will be described later in order to fold back the vulcanized material 7, it is slightly larger than the thickness of the driven pulley 42 on the inner surface of the U-shape. A cutout portion 16 serving as a gap was provided to provide an installation portion for the driven pulley 42. (See Figure 3)
According to the vulcanization passage 1 described above, even if the vulcanization passage 1 is lengthened, the volume in the length direction of the apparatus does not increase, so that the apparatus can be made compact and does not take up space. Further, the combination of the straight cylindrical tube 11 and the U-shaped cylindrical tube 12 can form the vulcanization passage 1 having an easy length and a space in the width direction and the length direction. it can.
Note that the vulcanization passage 1 of the folded portion may be formed not by the U-shaped cylindrical tube 12 but by a housing having a space in which the driven pulley 42 can be incorporated.
Further, in this example, there are two folded portions, but if there are three or odd places, it is easy to combine the extruder and the winding device on one side of the vulcanizing device, and more space is taken up. There can be no device. (See Figure 10)

The band heater 2 is an electric heating element that covers the entire circumference of the vulcanization passage 1 over the entire length of the vulcanization passage 1 in the form of tightly wound around the outer circumference of the cylindrical tubes 11 and 12 of the vulcanization passage 1. The band heater 2 includes a heating wire made of an iron-chromium alloy or the like, and an insulating material such as magnesium oxide filled in the periphery of the band heater 2 so that the diameter of the cylindrical tubes 11 and 12 is substantially cylindrical. And a heat generating cylinder plate 21 serving as a heat generating portion formed in conformity with the length (shape), and a flexibility as a fastening band for covering the outer periphery of the cylindrical tubes 11 and 12 with the heat generating cylinder plate 21. The outer plate 22 is composed of a metal plate, a tightening lot 23 for expanding and reducing the diameter of the outer plate 22, and a terminal 24 for electric wiring. The heating cylinder plate 21 has some flexibility. And both ends of the circumferential direction have gaps 26 that are not connected. When the outer periphery of the cylindrical tubes 11 and 12 is covered, the diameter of the outer plate 22 is reduced by tightening the tightening lot 23, and thus the gap 26 of the heat generating cylindrical plate 21 is reduced. The heat generating cylinder plate 21 can be firmly attached to the tubes 11 and 12. Further, the band heater that covers the U-shaped cylindrical tube 12 is formed in a shape suitable for the U-shaped cylindrical tube 12, and the vulcanized material 7 is folded back in the same manner as the U-shaped cylindrical tube 12. Therefore, since it is necessary to accommodate a driven pulley 42 which will be described later, the cutout portion 16 that is a gap slightly larger than the thickness of the driven pulley 42 is provided. (See Figure 3)
According to the present hand heater 2, the vulcanization passage 1 can be efficiently heated from the entire periphery by firmly attaching the heat generating cylinder plate 21 serving as a heating element to the cylindrical tubes 11 and 12. In addition, since it is formed in a length and shape that matches the cylindrical tubes 11 and 12, it can be adapted to the cylindrical tubes 11 and 12 to have a free length, a free width direction, and a length direction. It can be applied to the formation of the vulcanization passage 1 having a space.
The heat generating cylinder plate 21 of the band heater 2 is formed by being divided into two in the axial direction, and when the outer periphery of the cylindrical tubes 11 and 12 is covered, the heating cylinder plate is formed by a fastening means such as the fastening lot 23. In the same way as 21, the heat generating cylinder plate 21 is firmly attached to the cylindrical tubes 11, 12 by being sandwiched by the outer plate 22 divided in the axial direction and shrinking both the divided heat generating cylinder plates 21. It is good also as a structure which can be performed. According to this configuration, maintenance of the band heater 2 can be facilitated.
Further, the heating element may be configured integrally with the vulcanization passage, and the inner surface of the heating element formed in a cylindrical shape may be a vulcanization passage. According to this configuration, the device configuration can be simplified.

  The conveyor belt 3 is provided to convey the vulcanized material 7 synchronously from the inlet 14 to the outlet 15 of the vulcanizing passage 1, and as described above, from the inlet 14 to the outlet 15 of the vulcanizing passage 1. It passes through the central axis, is formed in an annular shape with the outside of the vulcanizing passage 1, and is arranged in such a manner that it circulates inside and outside the vulcanizing passage 1. Further, the belt 3 has sprocket engagement holes 31 having a diameter and a distance suitable for the sprocket 43 provided in the pulleys 41 and 42 for moving the belt 3 in accordance with the rotational drive of the movable pulley 41 and the driven pulley 42 described later. In order to mount the mounting piece 6 described later, the piece engaging holes 32 are provided continuously at appropriate intervals over the entire length of the belt. (See Figure 5)

As drive means for driving the transport belt 3, a drive motor 5 serving as a drive source provided outside the vulcanization passage 1, one drive pulley 41 connected to the motor 5, and a transport belt 3 A plurality of driven pulleys 42 interlocking with the driving of the driving pulley 41 provided in the belt traveling direction changing portion of the circulation path, and the driving pulley 41 includes a belt conveying groove 44 over which the conveying belt 3 is laid, A sprocket 43 that engages with a sprocket engagement hole 31 of the conveying belt 3 provided so as to protrude in the groove and moves the belt is provided, while a driven pulley 42 includes a belt conveying groove 44 similar to the above, A vulcanized material conveying groove 45 for laying the vulcanized material is provided in parallel, and a sprocket 43 provided in the belt conveying groove 44 is provided in the same manner as described above. Ete to configure. Further, the driven pulley 42 provided in the folded portion in the vulcanization passage 1 is arranged so that the vulcanized material 7 is located on the central axis of the passage, and as described above, the U-shaped cylindrical pipe 12, And, a part including the pulley shaft is located outside the vulcanization passage from the notch 16 provided in the band heater 2 of the part.
According to this driven pulley 42, the belt conveying groove 44 and the vulcanized material conveying groove 45 are provided in parallel, so that it will be described later at the stage of attaching the vulcanized material in the first vulcanizing passage 1. The vulcanized material 6 and the conveyor belt 3 can be connected in parallel through the mounting piece 6, and the vulcanized material 7 can be easily installed in the vulcanization passage 1.
The drive motor 5 may be a known servo motor or a motor capable of speed control.

FIG. 4 is a configuration diagram showing the mounting piece of this example, in which A shows a side view, B shows a bottom view, and FIG. 5 shows a state in which the mounting piece is mounted on a conveyor belt and a vulcanized material. .
The attachment piece 6 is configured to convey the vulcanized material into the vulcanization passage following the movement of the conveyance belt 3 at the initial feeding stage of the vulcanized material 7 into the vulcanization passage 1. The piece 3 is detachably mounted on the piece engaging hole 32 of the belt 3 and the end of the vulcanized material 7, and connects the conveying belt 3 and the vulcanized material 7. The belt engaging portion 61 including the cap screw 611 that engages with the piece engaging hole 32 and the nut 612 that fixes the cap screw 611 to the piece engaging hole 32 and the vulcanized material 7 can be penetrated. And a cylindrical vulcanized material retaining ring 62 having an inner diameter that can be temporarily held, and a connecting portion 63 in which the belt locking portion 61 and the vulcanized material retaining ring 62 are integrated. It is formed.
When the main mounting piece 6 is attached to the apparatus, the end of the vulcanized portion 7 is inserted into the vulcanized material retaining ring 62, and at any position before the inlet 14 of the vulcanizing passage 1, the conveyor belt 3 is placed. The cap screw 611 of the belt locking portion 61 can be attached to the appropriate position of the piece engagement hole 32 by tightening with the insertion nut 612. In this attached state, naturally, the conveyor belt 3 fits the belt conveying groove 44 of the driven pulley 42, and the vulcanized material 7 fits the vulcanized material conveying groove 45 of the driven pulley 6. To be positioned.
On the other hand, when the tip of the vulcanized material 7 is conveyed through the vulcanization passage 1 and reaches the outlet 15, the attachment piece 6 is manually removed, the tip of the vulcanized material 7 is pulled out, and the drum of the winding device is drawn. Then, it is wound in synchronism with the feed of the sprocket 43 of the pulleys 41 and 42. Although not directly related to the present invention, the winding drum is driven faster than the feed speed of the sprocket 43 and, for example, a slip clutch or the like is interposed so that a certain amount of tension is applied to the vulcanized material 7. A winding structure is preferable.

FIG. 6 shows a configuration of an attachment piece different from the above example and an attachment means to the conveyor belt.
The attachment piece 6 of this example includes a through-hole 610 that allows a cap screw 611 to be described later to pass therethrough, and is formed as a plate shape. In addition, a cylindrical vulcanized material retaining ring 62 having an inner diameter capable of penetrating the vulcanized material 7 and capable of being temporarily held, the belt locking portion 61 and the vulcanized material retaining ring. 62 is formed by a connecting portion 63 that integrates 62 and a screw 611 with a cap and a nut 612 provided separately from the belt locking portion 61 for attaching the belt locking portion 61 to the belt 3.
When attaching the attachment piece to the apparatus, the end of the vulcanized portion 7 is inserted into the vulcanized material retaining ring 62, and the piece of the conveyor belt 3 is placed at an arbitrary position before the vulcanization passage 1 inlet 14. The through hole 610 of the belt locking portion 61 is fitted to an appropriate position of the engagement hole 32, and a cap screw 611 is inserted into both the holes 32 and 610 and tightened with a nut 612.
In addition, since the structure of an attachment piece can be considered variously, it is not limited to this example, What kind of thing will be used if the conveyance belt 3 and the to-be-vulcanized material 7 are connected, and the inside of the vulcanization passage 1 is conveyed? A simple configuration may be adopted.
Further, in any of the embodiments of the mounting piece, the vulcanized material 7 is attached to the vulcanized material retaining ring 62 with an inner diameter that can be temporarily held. From the viewpoint of preventing the detachment from the ring 62, it is more preferable to provide an appropriate detachment prevention means such as screwing from the side of the vulcanized material retaining ring 62.

FIG. 7 shows the state of conveyance of the attachment piece in the vulcanization passage in this example, and FIG. 8 shows the relationship between the driven pulley and the attachment piece at the positions of the conveyance stages A and B in FIG. .
When the vulcanization passage 1 is provided with a plurality of folded portions and reversed by a pulley, the front and back of the surface of the conveyor belt 3 and the material to be vulcanized 7 that come into contact with the pulley are reversed each time the pulley passes through the pulley. That is, in the stage of FIG. 7A, the nut 612 side of the mounting piece 6 is inside the pulley, and in the stage B, the cap side of the cap screw 611 of the mounting piece 6 is located inside the pulley and passes therethrough.
On the other hand, in this example, the attachment piece 6 of the belt conveying groove 44 of the driven pulley 42 can be passed without inconvenience without contacting the driven pulley 42 in any of the states A and B. A step is formed in a portion corresponding to the passing portion, and a relief space 46 is provided so that the attachment piece 6 does not contact, and the belt locking portion 61 is configured not to contact the driven pulley 42. Also, the vulcanized material conveying groove 45 is provided at a position where the vulcanized material locking ring 62 and the connecting portion 63 of the mounting piece 6 do not contact the pulley 42 in any of the states A and B. Yes.
By using the mounting piece 6 as described above, even in a vulcanizing furnace including the vulcanization passage 1 having a ninety-nine fold structure, the first tip portion of the vulcanized material 7 is placed in the vulcanization passage 1. It can be installed easily without inconvenience.

The operation of the string rubber vulcanizing apparatus of this example will be described again in summary.
1. The tip of the vulcanized material 7 extruded from the extruder is inserted into the vulcanized material retaining ring 62 of the mounting piece 6 before the vulcanizing furnace inlet 14, while the vulcanized material 7 is attached to the vulcanized material retaining ring 62. The attached attachment piece 6 is attached to the conveyor belt 3 by the belt locking portion 61 to attach the vulcanized material to the apparatus.
2. The drive motor 5 that is a drive source is driven, the drive pulley 41 and the driven pulley 42 that is interlocked are moved, and the conveying belt 3 is circulated and moved by the sprocket 43 of the driven pulley 42 to be vulcanized. The article 7 moves in synchronization with the conveyor belt 3 and is conveyed while being heated and vulcanized in the ninety-nine folds of the vulcanizing passage 1 while being reversed from the vulcanizing furnace inlet 14 at the folded portion.
3. When the vulcanization passage 1 is conveyed and reaches the vulcanization furnace outlet 15, the attachment piece 6 is removed from the vulcanized material 7 and the conveying belt 3 by manual operation, and the tip of the vulcanized material 7 is pulled out and wound up. It winds around the drum of an apparatus, and winds synchronizing with the feed of the sprocket 43 of the pulleys 41 and 42 after that. It becomes the operation.

FIG. 9 shows a modification of this example in which the vulcanizing passage 1 and the band heater 2 covering the outer peripheral surface of the vulcanizing passage 1 can be divided into two in the axial direction, with A joined. , B shows a divided state.
In this modification, when divided, one side is fixed to the apparatus, and the other side is formed to be removable. As a means for attachment and removal, the fixed side and the removal side are opposed to each other. Bonding protrusions 27 are provided at suitable positions, and the bonding protrusions 27 are overlapped and engaged with each other (the removal-side bonding protrusions 27 are placed on the fixing-side bonding protrusions 27). It is attached by passing through and attaching the attachment pin 28 to the hole 271, while the outer sheath is divided by removing the pin 28. Note that the U-shaped cylindrical tube 12 (not shown) is also formed in a similar structure so that it can be divided.
According to this configuration, for example, when the vulcanized material 7 is broken during the vulcanization or when the dirt inside the vulcanization passage 1 is removed, the work is easily performed by being divided into two in the axial direction. It can be a device that is easy to maintain.

FIG. 10 is a block diagram showing the overall configuration of the second embodiment of the present invention. In the drawings, the lid of the device is omitted for easy understanding.
The string-like rubber vulcanizing apparatus of this example is a U-shaped plate including a heating plate 8 incorporating a plurality of cartridge heaters 81 as a heating element, and a plurality of (three in this example) folding portions on the heating plate 8. A cylindrical vulcanization passage (U-shaped groove) 9 that is formed as a groove and serves as a heating and conveying passage for the vulcanized material 7 and a cover that covers the upper surface of the hot plate 8 and constitutes one surface of the vulcanization passage. It passes through the body (not shown) and substantially the central axis from the inlet 92 to the outlet 93 of the U-shaped groove 9 and is formed in an annular shape with the outside of the U-shaped groove 9 to circulate inside and outside the U-shaped groove 9 And a driving pulley 41 connected to a driving motor 5 serving as a driving source provided outside the U-shaped groove 9, and the U The folding groove 91 inside the groove 9 and the traveling direction changing portion of the conveyor belt 3 outside the U groove 9 are provided. A plurality of driven pulleys 42 interlocked with the drive pulley 41, a conveyor means for driving the conveyor belt 3 and the vulcanized material 7 interlocked therewith, the conveyor belt 3, and the vulcanized substance It can be detachably attached to the end of the object 7 and has a basic structure including an attachment piece 6 (see FIGS. 4 to 7) for conveying the vulcanized material in synchronization with the driving of the conveying belt 3. A string-like rubber (vulcanized material) 7 extruded from an extruder is linked to a conveyor belt 3 that is circulated and driven by a drive pulley 41 and a driven pulley 42, and U from a vulcanization furnace inlet 92 to an outlet 93. The inside of the groove 9 was vulcanized by heating and conveying, and after vulcanization, the string-like rubber (cured material) 7 was wound up with a winding device and collected.

As described above, the apparatus of the present example includes the vulcanizing furnace portion including the vulcanizing passage 1 (the straight cylindrical tube 11 and the U-shaped cylindrical tube 12) and the band heater 2 according to the first embodiment described above. The heat plate 8 is formed by a vulcanization passage including a 99-fold U-shaped groove 9 and a cartridge heater 81 embedded in the heat plate. The configuration for conveying the vulcanized material is the same as that of the first embodiment.
The hot plate 8 is made of a thick plate-like metal material having excellent heat conductivity, and is configured by inserting a plurality of cartridge heaters 81 under the U-shaped groove 9 formed on the surface side. The cartridge heater 81 is a known heater, in which a heat generating portion in which a heat generating wire made of a nickel-chromium alloy or the like is wound around a core material of an insulating material is inserted into a cylindrical outer cylinder, and the periphery thereof is magnesium oxide or the like. A rod-shaped heater formed by filling and sealing with an insulating material is inserted into a heater insertion hole formed by an appropriate arrangement on the lower side of the hot plate 8 and fixed and inserted.
The heater for heating the hot plate is not limited to the cartridge heater of this example, and a sensor or device for temperature control that is naturally used in a heating furnace or the like is not described. Are used by known means.
Further, in order to close the U-shaped groove 9 serving as a vulcanization passage in the hot plate 8, a lid (not shown) made of the same material as the hot plate 8 is covered with the hot plate, and the upper surface of the U-shaped groove 9 is It was connected and fixed so as to be integrated with the hot plate 8. If the lid is attached and formed to be removable, as described above, it is advantageous for maintenance.

The U-shaped groove 9 includes a plurality of folded portions 91 on the surface side of the hot plate 8 and is a vulcanized passage for a vulcanized material that is formed as a series of U-shaped grooves from the inlet 92 to the outlet 93. The portion 91 is formed as a groove having a space that can accommodate the entire pulley 42 because the driven pulley 42 needs to be accommodated inside the groove. Further, the inner surface portion of the U-shaped groove and the portion corresponding to the upper surface of the U-shaped groove of the lid are formed by applying far-infrared coating.
Moreover, in this example, the folding | returning part 91 which was two places in 1st Embodiment is made into three places, and it is set as the structure which puts together an extruder and a winding apparatus in the one side of a vulcanizer, The whole apparatus. The space is made more compact. The folded portion may be appropriately selected as necessary from the entire space of the vulcanizing apparatus, the necessary total length of the vulcanizing passage 1, and the spaces in the length direction and the width direction.
The above is a portion having a configuration different from that of the first embodiment of the present example, and the conveyor belt 3, the driving pulley 41, the driven pulley 42, the mounting piece 6, and the like, which are other components, are the first embodiment. The same thing may be used similarly, and it becomes the same also about operation.

1 is an overall configuration diagram showing a first embodiment of the present invention. The top view which shows a part of cylindrical tube and heat generating body of the said Example. The partial cross section figure of the folding | turning part of the said Example. The block diagram which shows the attachment piece of the said Example. Explanatory drawing which shows the belt mounting state of the said attachment piece. The block diagram which shows the mounting means to the belt of another attachment piece. The schematic diagram which shows the conveyance state of the attachment piece of the said Example. Explanatory drawing which shows the relationship between the pulley and attachment piece in the said conveyance state. The block diagram of the vulcanization passage and heating element part which shows the modification of the embodiment. The whole block diagram which abbreviate | omitted one part which shows 2nd embodiment of this invention.

Explanation of symbols

1. Vulcanization passage (furnace)
11. 11. Linear cylindrical tube U-shaped cylindrical tube 13. Far-infrared coating Band heater 21. Exothermic tube plate 22. Outer plate 27. Bonding protrusion 28 ・ Mounting pin Conveying belt 31. Sprocket engagement hole 32. Piece engaging hole 41. Drive pulley 42. Followed pulley 43. Sprocket 44. Belt conveying groove 45. 4. Groove for conveying vulcanizate Driving motor 6. Mounting piece 61. Belt locking part 62. 6. Vulcanized material retaining ring 7. String-like vulcanizate Hot plate 81. Cartridge heater 9. U-shaped groove

Claims (12)

  A conveying path that is a vulcanization furnace for a vulcanized material that has a plurality of folded portions and is formed in a cylindrical shape, a heating element that covers the cylindrical outer peripheral surface of the conveying path, and an inlet in the conveying path A conveyor belt that is formed in an annular shape with the outside of the passage, passing through substantially the central axis to the outlet, and circulated inside and outside the conveyor passage, a conveyor means for driving the conveyor belt, the conveyor belt, and A string-like rubber vulcanizing device comprising a conveyor belt and an attachment piece for synchronizing the drive of the vulcanized material, which can be detachably attached to the end portion of the vulcanized material. .   The conveying means includes a driving pulley connected to a driving source provided outside the conveying passage, at least a folded portion inside the conveying passage, and a bent portion outside the conveying passage, and is driven in conjunction with the driving pulley. A pulley, and the driven pulley includes a groove for carrying (conveying) the conveyor belt and a groove for conveying the vulcanized material in parallel, and at the stage of attaching the vulcanized material to the apparatus, The string-like rubber vulcanizing device according to claim 1, wherein the vulcanized material and the conveyor belt are connected in parallel through the mounting piece.   The cylindrical transport passage is composed of a plurality of folded portions and a plurality of straight portions connecting the folded portions, each of the straight portions being composed of one or a plurality of straight tubular members, and the folded portions Is a U-shaped tubular member, or a string-like rubber vulcanizing device formed as a housing having a space in which the driven pulley can be incorporated.   The heating element covering the outer peripheral surface of the transport passage is adapted to each of the linear tubular member and the U-shaped tubular member, and each is formed into a tubular shape and wound around the transport passage. The string-like rubber vulcanizing apparatus according to claim 1, wherein heating from the entire circumference of the conveying path is possible.   The string-shaped rubber vulcanizing device according to any one of claims 1 to 3, wherein the transport passage and / or the heating element covering the outer peripheral surface of the transport passage is formed so as to be split into two in the axial direction. The conveying path, either vulcanizer cord-like rubber heating element and integrally formed claims 1 to 3 or 5 covering the outer peripheral surface.   A heating passage provided with a plurality of folded portions on the heating plate and formed as a U-shaped groove; a conveying passage serving as a vulcanizing furnace for the vulcanized material; a lid that covers the conveying passage and forms one surface of the conveying passage; A heating element that is inserted into or embedded in the heating plate, and passes through the central axis from the inlet to the outlet in the transfer passage, is formed in an annular shape outside the passage, and is arranged in a manner that circulates inside and outside the transfer passage. Transporting belt, transporting means for driving the transporting belt, and a mounting piece that can be detachably attached to the transporting belt and the end of the vulcanized material and synchronizes the driving of the transporting belt and the vulcanized material. A string-like rubber vulcanizing device.   The conveying means includes a driving pulley connected to a driving source provided outside the conveying passage, at least a folded portion inside the conveying passage, and a bent portion outside the conveying passage, and is driven in conjunction with the driving pulley. A pulley, and the driven pulley includes a groove for carrying (conveying) the conveyor belt and a groove for conveying the vulcanized material in parallel, and at the stage of attaching the vulcanized material to the apparatus, The string rubber vulcanizing device according to claim 7, wherein the vulcanized material and the conveyor belt are connected in parallel through the mounting piece.   The string-like rubber vulcanizing apparatus according to any one of claims 1 to 8, wherein a far-infrared coating is applied to an inner surface of the conveyance path formed in the cylindrical shape or the U-shaped groove.   The string-like rubber according to any one of claims 1 to 9, wherein the driving pulley and the driven pulley are provided with a conveying protrusion (sprocket), and the belt is provided with a hole that engages with the protrusion. Vulcanizing equipment.   The conveying belt is provided with a piece receiving portion for connecting the attachment piece, and the attaching piece is provided with a means for engaging with the conveying belt suitable for the piece receiving portion, and an end portion of the vulcanized material. A retaining portion for retaining, and when the vulcanized material is attached to the apparatus by the locking means and the retaining portion, the vulcanized material is engaged with the groove for conveying the vulcanized material; 11. A string rubber vulcanizing apparatus according to claim 1, wherein the string rubber is formed as described above.   The piece receiving portion provided in the conveying belt is a hole provided continuously at an appropriate interval in the conveying belt, and the locking means to the conveying belt provided in the mounting piece includes a protruding portion that engages with the hole. The string-like rubber vulcanizing device according to claim 11, wherein the retaining portion of the vulcanized material is configured as a cylindrical portion through which the vulcanized material tip is inserted.

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