JPH0994832A - Vulcanization appratus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve productivity by eliminating waste of time and energy in a vulcanization apparatus in which an endless rubber belt which is stretched between two shafts is vulcanized. SOLUTION: For one unit of press 1 equipped with one set of heating plates for heating a rubber belt A held between the plates, an opening/closing means for the plates, and a pressure holding means is accompanied by two units of belt stretching machines 100, 200 which are equipped with two shafts 110, 120 for stretching the rubber belt A, a means for setting the distance between the shafts, and a driving means to rotate the shafts respectively and can move part of the stretched rubber belt A to insert it between the heating plates of the press 1. In particular, the two shafts 110, 120 are arranged horizontally, and the stretching machines 100, 200 are revolved horizontally around support shafts 6, 7.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vulcanizing apparatus of a type in which an endless rubber belt is stretched (stretched by being stretched) between two axes, and in that state, the rubber belt is sandwiched between heating plates to vulcanize. It is a thing.

[0002]

2. Description of the Related Art For endless rubber belts,
There is a case where the whole is vulcanized by a method in which the vulcanization is applied to each of the parts one by one while the tension is applied between the shafts. That is, a part of an endless rubber belt hung between two shafts is sandwiched between a pair of heating plates from the front and back, and that part is vulcanized, then the rubber belt is fed by an appropriate amount and sandwiched again by the heating plates. The entire rubber belt is vulcanized by repeating the procedure such as vulcanization of a different portion. Such a vulcanization method and an apparatus therefor are disclosed, for example, in Japanese Utility Model Publication No. 7-18820.

[0003]

When the endless rubber belt is vulcanized by the above method, only one belt tensioning machine having the above two shafts is provided for one pressing machine having a heating plate or the like. By arranging them, the production efficiency of rubber belts does not improve so much. This is because, when the rubber belt is vulcanized by applying the tension, it is necessary to continue to apply the tension until the rubber belt is completely cooled, and therefore the vulcanized rubber belt cannot be immediately removed from the two shafts. Specifically, the following waste occurs in terms of time and heat energy.

A) Even if the cooling time is shortened by passing cooling water through the inside of the two shafts, it takes about 10 minutes before the vulcanized rubber belt is completely cooled (removable from the two shafts). This is generally the case. During that time, the rubber belt to be vulcanized next cannot be hung between the two shafts, so it is impossible to use it even if the press machine is idle, so to speak, it just waits for time. Become.

(B) Since the temperature of the heating plate will be lowered while waiting for cooling as in the case a), it is necessary to raise the temperature of the heating plate again by passing high temperature steam etc. when vulcanizing the next rubber belt. is there. In other words, the energy efficiency is low because the amount of heat used only for raising the temperature of the heating plate is required, not for the original vulcanization.

Even if two belt tensioning machines (or more) are used for one pressing machine, the rubber belts on each tensioning machine can be alternately and smoothly moved between the heating plates. It is not easy to increase the production efficiency sufficiently unless the machine and the tension machine are installed.

The present invention is intended to provide a preferable vulcanizing apparatus from the above viewpoints.

[0008]

A vulcanizing apparatus according to claim 1 is a vulcanizing apparatus for vulcanizing an endless rubber belt stretched between two shafts. For one press having a pair of heating plates to be sandwiched and heated, an opening / closing means for the heating plates, and a pressure holding means, b) two shafts having a rubber belt stretched, a means for setting the distance between the shafts, and a rotation driving means for the shafts. And two belt tensioning machines that can move so as to insert a part of the tensioned rubber belt between the heating plates of the press machine.

In this apparatus according to claim 1, the above-mentioned method in which an unvulcanized endless rubber belt is hung between the two shafts and a vulcanization is sequentially performed from a part to the whole in a state where tension is applied to the belt is a). It can be realized by the press machine of b) and the belt tensioning machine of b). That is, first, the belt tensioning machine of b) is
When the unvulcanized rubber belt is hung between the two shafts whose axial distance has been shortened in advance, the axial distance is expanded to an appropriate distance by the axial distance setting means to apply a constant tension to the belt. A part of the belt in such a state is sandwiched between the front and back sides of the pressing machine in a) by a heating plate and heated to vulcanize the sandwiched part. At this time, the press machine opens and closes the heating plate by the opening and closing means to sandwich the belt,
The pressure holding means holds the pressure required for vulcanization. When the vulcanization of the part is completed, the press opens the heating plate by the opening / closing means, and the tensioning machine sends the belt by the rotation driving means until the unvulcanized part of the belt enters between the heating plates. The procedure of vulcanizing the unvulcanized portion with the press-is repeated to vulcanize the entire rubber belt.

In this vulcanizing apparatus, two belt tensioning machines of b) are installed side by side with respect to one pressing machine of a) above.
Moreover, each tensioning machine can be moved to insert a part of the stretched rubber belt between the heating plates of the press. Therefore, when vulcanization is completed for the entire one rubber belt as described above, the tensioner that stretches the belt is moved to the outside of the press machine and the other tensioner is reversed. It is possible to move and insert a portion of the belt, which was previously stretched between its two axes (during the vulcanization) between the heating plates of the press. Then, while the vulcanized belt is cooled in the tensioned state on the tensioner that has moved to the outside of the press machine, the other tensioner and the press machine should be used to vulcanize the other belt. You can In other words, with this device, it is possible to prepare for vulcanization of the next belt during vulcanization of one belt, and to vulcanize the next rubber belt when cooling one belt after vulcanization. And the temperature of the heating plate does not easily drop, so there is little waste of heat energy.

The vulcanizing apparatus of claim 2 is the above-mentioned claim 1.
Further, regarding the vulcanizing device of c), the two shafts of each belt tensioning machine are horizontally arranged, and the pressing machine sandwiches the rubber belt from above and below (vertically above and below vertically), and d) both sides of the pressing machine. E) Each belt tensioning machine shall perform the above-mentioned movement by turning around one of the above-mentioned support shafts using wheels as moving means, and a part of the rubber belt is pressed by a press machine. And a positioning means for determining the position of the belt tensioning machine in a state of being inserted between the heating plates.

In this vulcanizing apparatus of claim 2, two belt tensioning machines provided for one press machine each hold the rubber belt in the most preferable state, and a part of each belt is alternately arranged. The function of inserting between the heating plates can be smoothly realized by a simple operation by an extremely simple means. The reason is as follows.

First, as described in c), the two axes of each belt tensioning machine are horizontal, and the unvulcanized rubber belt is supported so that the tensioning surface spreads out substantially horizontally. It is least likely that the internal stress in the belt will be non-uniform, and no special means need be provided to prevent the belt from slipping out of the two axes. In addition, since the press machine vertically sandwiches the belt hung on such two axes as shown in c), uneven stress is exerted not only on the sandwiched portion of the belt but also on the front and rear portions (adjacent portions). Or do not give any deformation.

Secondly, as described in d) and e), the horizontal swinging movement of each belt tensioning machine about the vertical support shafts standing on both sides of the press machine is as shown in c). It means that between the heating plates arranged to sandwich the belt from above and below, the belt can be alternately inserted and taken out from the front surface of the press machine by a single operation of turning while avoiding contact between the tension machines. Therefore, the operation is simple and the necessary mechanism is easy to configure. Actually, in this vulcanizing device, the tensioning machine makes a swing around the support shaft only by providing wheels as a moving means, and with that, it is used as a movement for inserting a belt between the heating plates and the like. The structure is simple, such as determining the position of the tensioning machine during vulcanization by means. How rational it is possible to move each tensioning machine as described above becomes clear by considering what kind of inconvenience occurs when the tensioning machine is moved in other modes. . That is, when the two belt tensioning machines are moved to insert a part of the belt between the heating plates, the tensioning machines are moved linearly with respect to the press machine only from its front surface, not by turning. If it is done, it is 2 compared to the size of the heating plate.
It is not possible to move the tensioner straight in and out from diagonally forward of the press except when the spacing between the shafts is very wide. Movement to the left or right or up and down is required to avoid hitting the tensioning machine, which complicates the moving mechanism. Moving one tensioner in and out of the press and the other tensioner in and out of the back means that the heating plate is built into the press through some support member (i.e. floating in the air). However, it is extremely difficult to realize because the supporting member hinders the movement of the tensioning machine.
The same applies to the case where each tensioning machine is linearly moved in and out from the left and right of the press machine. For example, one of the heating plates (which contacts the inside of the belt) is connected to one of the two axes of each tensioning machine. Since the operation of temporarily retracting so that it does not hit the axis and then returning it to the original position is required, the structure of the press machine becomes complicated. It is also possible to move each tensioning machine in and out of the press machine from above or below, and because of the relationship with the heating plates arranged to sandwich the belt from above and below as in c), the structure of the device is not complicated. Very difficult to achieve.
It is not preferable to incline or rotate the tensioning machine up or down because the unvulcanized rubber belt may have an uneven weight and the belt may come off from the biaxial shaft. .

The vulcanizing apparatus of claim 3 is the vulcanizing apparatus of claim 1 or 2.
Further, regarding the vulcanizing device of f), a feed nut is attached to each threaded portion of the rotating rod having a right-hand threaded portion and a left-handed threaded portion (attached so as to be fed on each threaded portion without rotating when the rotating rod rotates). (1) and the two moving nuts are connected to a link of a plurality of nodes, some of which may project upward or downward as they approach each other, to form a belt peeling means, and g) the belt peeling means. Is arranged beside a heating plate located inside a rubber belt inserted in a stretched state in the press machine.

In the apparatus of claim 3, the belt peeling means of the above item f) functions as follows. That is, 1) rotate the rotating rod in a fixed direction by using a driving means such as a motor or by a manual operation. 2) Due to the rotation of the rotary rod, the moving nuts fitted respectively to the right-hand thread part and the left-hand thread part approach. 3) As the moving nuts approach, some of the multiple node links connected to the nuts project upward or downward. 4) The protruding node lifts or pushes the rubber belt to separate the belt from the heating plate located inside the belt (that is, between the upper and lower belts stretched between the two shafts).

In the vulcanizing apparatus according to claim 3, wherein the belt peeling means of f) is arranged as in g), when the heating plate is opened after the vulcanization is completed, the heating plate located inside the rubber belt is removed. The belt can be peeled off smoothly. If the belt can be peeled off from the heating plate, it is possible to send the belt for vulcanization of other parts and take out the belt together with the tensioning machine from the press machine for cooling. You can proceed smoothly. The heating plate located inside the belt is stretched above and below the belt and can hardly be moved in the vertical direction. In some cases, the heating plate is in contact with the belt through a V-shaped groove or the like. Therefore, it is conceivable that the belt may be difficult to separate even if the heating plate assembly is opened by the opening / closing means after the vulcanization is completed.
As long as this device is equipped with such belt peeling means,
The belt can be smoothly peeled off from the inner heating plate. The heating plate on the outside of the rubber belt, which is in contact with the surface of the rubber belt, can be moved considerably upward (or downward), so that the belt can be peeled off without any special peeling means.

[0018]

1 to 4 show a vulcanizing apparatus which is an embodiment of the present invention. This vulcanizer uses an endless rubber belt (such as A shown in Fig. 1) to be vulcanized, hangs it between two shafts and stretches it almost horizontally. While it is vulcanized. 1 is a plan view showing the entire vulcanizing apparatus, FIG. 2 is a front view of a main part of the vulcanizing apparatus, and FIG.
4 is a detailed view of the belt tensioning machine, and FIG. 4 is a side view of the press machine (a view taken along the line IV-IV in FIG. 2).

The overall characteristic of this vulcanizing apparatus is that two belt tensioning machines 100 and 200 are arranged for one press machine 1 as shown in FIG. As shown in the figure, the tensioner 100 is configured so that the unvulcanized rubber belt A can be hung between the two shafts 110 and 120, and the vertical support shaft 6 provided at one end serves as a center for approximately 90 °. In this range, the other tensioning machine 200 is also hung on the rubber belt A so that it can be horizontally swung around the support shaft 7. The line segment connecting the support shafts 6 and 7 corresponds to one of the turning destinations of the tensioning machines 100 and 200 as shown in the figure, but the rubber belt A or the like is sandwiched from above and below in the center of the line segment for vulcanization. The press machine 1 is installed.

The press machine 1 is, as shown in FIG.
A set of three heating plates 10 sandwiching the rubber belt A on 0 (or 200), and opening / closing means 2 for opening / closing the heating plates 10
0, pressure holding means 30 for holding the heating plate 10 in a closed state to hold the pressure during vulcanization, and a stand 2 in which these are assembled. Hereinafter, first, the configuration of the press machine 1 will be described in detail.

As shown in FIG. 2, the heating plate 10 comprises a pair of upper and lower movable plates 11 and 13, and a fixed plate 12 fixed to the stand 2 at an intermediate height between them. The rubber belt A is sandwiched between the upper movable plate 11 and the fixed plate 12 and between the fixed plate 12 and the lower movable plate 13, and the plates 11, 12, 13 are vulcanized. An electric heater (not shown) is embedded as a heating element of the. Further, since V-shaped irregularities are formed on the inner side surface of the rubber belt A, a plurality of V-shaped grooves 12a are provided on the upper and lower surfaces of the fixing plate 12 as shown in FIG. The upper and lower movable plates 11 and 13 are provided with airbags (not shown) on the upper and lower surfaces facing the fixed plate 12. The airbag is a rubber film and forms a bag with the main bodies of the movable plates 11 and 13, and expands toward the fixed plate 12 when air is introduced into the bag portion. The movable plates 11 and 13 are attached to lifting tables 25 and 26 of the opening / closing means 20 described later, respectively.

The opening / closing means 20 is a movable plate 11 of the heating plate 10.
A means for moving the 13 up and down to close or open between them and the fixed plate 12, which is configured as shown in FIG. That is, first, the feed screw 22 in which the right screw 22a and the left screw 22b whose spiral directions are opposite to each other are formed near both ends is erected vertically by the stand 2, and this is connected to the reversible motor (with brake and speed reducer) 21.
A right-handed feed nut 23 is fitted to the upper right-handed screw portion 22a, and the lifting table 25 is connected to the feed nut 23 via a spring 25b. On the other hand, the left-hand screw 2 on the lower side
A left-handed feed nut 24 is fitted to 2b, and the lifting table 26 is similarly connected via a spring 26b. Each of the tables 25 and 26 has a linear guide 25a.
-26a is attached and it runs along the vertical rail 27 on the stand 2. When the feed screw 22 is rotated in either direction by the motor 21, the tables 25 and 26 are horizontally moved smoothly in parallel, but the right screw 22a and the left screw 22 are moved.
Due to the action of b, the directions of movement of the two are either toward each other or away from each other. Table 2 above as shown
Since the movable plate 11 is attached to the lower surface of 5 and the movable plate 13 is attached to the upper surface of the lower table 26, the set of heating plates 10 can be opened and closed by starting the motor 21. However, the opening / closing means 20 does not apply a force corresponding to the vulcanizing pressure of the rubber belt A to the heating plate 10. The pressure for vulcanization acts on the rubber belt A by the force of the movable plates 11 and 13 based on the airbag and the force associated with the expansion of the rubber belt A itself being supported by the connecting member 31 of the pressure holding means 30.

As shown in FIGS. 2 and 4, the pressure holding means 30 is provided on the elevating table 25 as a set of four connecting tools 31, and when the heating plate 10 is closed by the opening / closing means 20,
As shown in FIG. 4, the claw 31a at the tip is hooked on the elevating table 26 which is integral with the movable plate 13. When the claw 31 is hooked in this manner, the pressure holding means 30
Means that the heating plate 10 consisting of three plates 11, 12, and 13 is connected in a closed state. Each connector 31
Is a simple linear rod, but each plate 11 of the heating plate 10
It is possible to keep them closed even when a large force is applied to 12 and 13 in the direction in which the space spreads. As shown in FIG. 4, a horizontal shaft 32 is connected to the base end of the connector 31, and a drive source 33 such as a motor is connected to this. There are two horizontal shafts 32 in parallel, and each has two connecting members 31 integrally, but since both horizontal shafts 32 were connected via a bevel gear 34 and a shaft 35, one drive source 33 By activating, all the connecting members 31 are oscillated symmetrically in the vertical plane as shown in FIG. 2, and the heating plate 10 can be connected / disconnected.

Of the heating plate 10, the side portions (both left and right in FIG. 2) of the fixed plate 12 that enters inside the rubber belt A are
A belt peeling means 40 is attached. The peeling means 40 smoothly peels the rubber belt A from the surface of the fixing plate 12 having a plurality of V-shaped grooves 12a when the heating plate 10 is opened, and then feeds or stretches the rubber belt A with the shaft 110 or the like. The rubber belt A can be taken out of the press machine 1 together with the installation machine 100. The structure of the peeling means 40 is as shown in FIG. That is, a rotary rod 41 having a right-handed thread portion and a left-handed thread portion (joined together using a joint) is arranged along the side surface of the fixed plate 12, and a right-handed feed nut 42a and a left-handed screw are provided in each threaded portion. The feed nuts 42b of the above (each nut 42a, 42b is provided so as not to rotate together with the rod 41), and the upper and lower sides of both nuts 42a, 42b are connected by a plurality of links 43 as shown in the figure. . If the motor 44 is connected to the rotating rod 41 and the rod 41 is rotated in a predetermined direction by this, the two nuts 42a and 42b come close to each other. It projects downward. Therefore, when the motor 44 is started in a predetermined direction when the heating plate 10 is opened, the rubber belt A attached to the fixed plate 12 can be lifted or pushed down by the node of the link 43 and peeled from the fixed plate 12. .

In addition, the movable plate 11 of the heating plate 10
As shown in FIG. 2, a pressing roller 51 is attached to the side of 13 for the purpose of smoothly adhering the rubber belt A to the fixing plate 12. When the rubber belt A is pressed by these rollers 51 when the heating plate 20 is closed, the rubber plate A is heated in a preferable state without wrinkles.
It is sandwiched by 0.

On the other hand, two belt tensioning machines 100 and 200
The rubber belt A can be stretched between the two shafts 110 and 120, and a part of the belt A is inserted between the heating plates 10 of the press machine 1 as shown in FIG. The rubber belt A can be taken out (see FIG. 1) and can be fed by a fixed distance (distance corresponding to the heating range of the heating plate 10) in the length direction. The structure of the tensioning machine 100 is as shown in FIGS.
The shafts 110 and 120 and their rotation drive means 130,
The axial distance setting means 140 and the like are incorporated so that the entire frame 102 can be moved by the moving means 150. The details are as follows (the extension machine 200 is symmetrical in arrangement with the extension machine 100, but the configuration is the same, so detailed illustration and description thereof are omitted).

First, the two shafts 110 and 120 are means for tensioning the rubber belt A, and two rotary rollers parallel to each other are horizontally provided as shown in FIG. 3 (a).
As in the case of the fixing plate 12 described above, each of the shafts 110 and 120 has a plurality of V-shaped grooves 110a and 120a along the shape of the rubber belt A formed on the surface thereof as shown in FIG. -It is mounted rotatably on 125. The shafts 110 and 120 are supported in a so-called cantilever state by the brackets 115 and 125 in order to facilitate the attachment and detachment of the rubber belt A. However, in order to prevent inconvenient bending when tension is applied, the tip portion is a bearing. It is designed to be connected to a part of the bracket 115 by a detachable support member 113 via.

While the shaft 120 is a driven shaft that rotates freely, the shaft 110 is a so-called drive shaft, and one end of the shaft 110 is connected to the rotary drive means 130 shown in FIG. 3 (a). The rotation driving means 130 includes a motor 131 having a brake and a speed reducer, a transmission belt 132 connecting the motor 131 with one end of the shaft 110, and the like. When a part of the rubber belt A is completely vulcanized by the press machine 1 shown in FIG. 2, the heating plate 10 is opened and then the motor 131 is rotated by a certain amount, so that the part which has not been vulcanized yet remains in the heating plate 10. Send it in between.

Rubber belt A hung between the shafts 110 and 120
In order to easily apply an appropriate tension to the tensioner 100, the tensioning machine 100 is provided with the axial distance setting means 140 as shown in FIG.
This allows the distance between the shafts 110 and 120 to be increased by the bracket 115.
・ It expands and contracts with 125 and consists of the following equipment. That is, first, the feed screw 141 in which the left screw portion 141a and the right screw portion 141b are formed near both ends
Is laid horizontally in the frame 102 and connected to a driving motor (with a brake and a speed reducer) 144 via a transmission belt 145 and the like. A left screw feed nut 142a is fitted to the left screw 141a of the feed screw 141 to connect it to the bracket 115 of the shaft 110, while a right screw feed nut 142 is attached to the right screw 141b.
Fit b and connect it to the bracket 125 of the shaft 120. Each of the brackets 115 and 125 has linear guides 116 and 126 attached thereto and is aligned with the horizontal rails 117 and 127 on the frame 102. Motor 14
By turning the feed screw 141 in either direction by 4,
The brackets 115 and 125 move smoothly horizontally, but due to the action of the left-hand screw 141a and the right-hand screw 141b, the directions of movement of the two are either toward or away from each other. Therefore, this axial distance setting means 14
According to 0, the distance between the shafts 110 and 120 can be freely changed without moving the center position of the worn rubber belt A,
Appropriate tension can be applied to the rubber belt A. Since the number of rotations (and the rotation angle) of the feed screw 141 is measured by the rotary encoder 143 at the shaft end thereof, it is possible to accurately grasp the distance between the two shafts 110 and 120.

The moving means 150 is configured so that the tensioning machine 100 can be moved as shown in FIG.
As shown in FIG. 3, the wheels 151. 1 are for horizontally turning to move in and out of the press machine 1 as shown in FIG.
52 is the main subject. The inner wheel 152 near the support shaft 6, which is the center of turning, is a driven wheel that is free to rotate, but the outer wheel 151 distant from the support shaft 6 has a transmission belt 154.
And a motor (with a brake and a speed reducer) 153 via an electromagnetic clutch 155. That is, the self-propelled function is imparted to the stretching machine 100 by using the wheels 151 as driving wheels. While the vertical support shaft 6 is fixed on the floor surface, the bearing unit 159 is attached to the end of the frame 102.
Since the wheels are attached by attaching the
If the tensioner 100 is driven, the tensioner 100 will pivot around the support shaft 6. The outer wheels 151, instead of the inner wheels 152, are used as the driving wheels because the tensioning machine 100 travels on an arc centered on the support shaft 6, and thus the inner wheels 152 are used.
The reason why the drive wheel is is that there is a lot of slip and it is not efficient.

A state in which the tensioner 100 is put in the press machine 1, that is, a state in which the rubber belt A stretched between the two shafts 110 and 120 is inserted between the heating plates 10 of the press machine 1 as shown in FIG. Then, it is preferable that the tensioner 100 stops at the correct position and does not swing. Therefore, as shown in FIG.
It is also equipped with. The positioning means 160 is a reference hole 6 of the bracket 60 provided directly below the press 1 as shown in FIG.
The position of the stretching machine 100 is determined by inserting the pin 164 into the position 1 from above. Structurally, the rotation of the motor (with brake and speed reducer) 161 transmitted through the torque limiter 162 is converted into the reciprocating motion of the pin 164 in the vertical direction by the crank mechanism 163. It goes without saying that the pin 164 is pulled up when moving the tensioning machine 100.

The press machine 1 and the two stretching machines 1 as described above
In the vulcanizing apparatus of FIG. 1 having Nos. 00 and 200, a plurality of rubber belts A can be sequentially vulcanized by repeating the following procedure.

When one tensioning machine 100 (which may be the tensioning machine 200; the same applies below) is in the position shown by the phantom line in FIG. 1, it is unvulcanized on its two shafts 110 and 120. Perform necessary preparatory work prior to vulcanization, such as by hanging the rubber belt A of.

By rotating the tensioner 100 by the moving means 150 (FIG. 3) such as the wheels 151,
The unvulcanized rubber belt A stretched by applying appropriate tension is inserted between the heating plates 10 of the press 1 (see FIG. 2).

The rubber belt A is vulcanized by the press 1. By the time the vulcanization is completed, not only the heating plate 10 of the press 1 but also the opening / closing means 20 thereof, the pressure holding means 30, the belt peeling means 40, the pressing roller 51, and the shafts 110 and 120 of the tensioning machine 100. The rotation driving means 130 and the like are repeatedly used.

While the rubber belt A on the tensioner 100 is being vulcanized as described above, the tensioner 200 prepares the rubber belt A to be vulcanized next in the same manner as described above.

The tensioning machine 100 after the above vulcanization is completed.
Is returned from the press machine 1 to the original position (in the phantom line in FIG. 1), and then the tensioner 200 having the next unvulcanized rubber belt A stretched is rapidly moved into the press machine 1, Vulcanize in the same manner as.

The vulcanized rubber belt A on the tensioning machine 100 ejected from the press machine 1 is the shaft 110.12.
While being stretched between 0, the rotary drive means 130 continuously feeds the material for a while (natural cooling) to cool it, and after the temperature has dropped sufficiently, the feed is stopped,
The shafts 110 and 120 are brought close to each other and taken out.

In this way, the press machine 1 and the one tensioning machine 1
The following unvulcanized rubber belt A can be prepared while one rubber belt A is vulcanized by the above (00),
Since the vulcanized rubber belt A can be cooled outside the press machine 1 (described above), the vulcanizer can immediately start vulcanizing one rubber belt A and then the next rubber belt A. Therefore, there is no waste of time and efficiency, and since the temperature of the heating plate 10 does not drop, there is an energy saving effect. Two tensioning machines 100
-200 is two support shafts 6 and 7 which are separated on both sides of the press machine 1.
Each of them revolves around, but the operation is an extremely simple operation, but since the above procedure of alternately going in and out of the press machine 1 is smoothly realized, it has the advantage of low cost and few failures. Bringing to the device.

[0040]

According to the vulcanizing apparatus of the first aspect of the present invention, during vulcanization of one belt, preparation for vulcanization of the next belt is performed, or cooling of the previously vulcanized belt is performed during vulcanization of the next rubber belt. There is little waste of time, such as being able to do it, and less waste of heat energy because the temperature of the heating plate does not easily drop. This effect is due to the fact that two belt tensioning machines are installed side by side with one pressing machine, and each tensioning machine alternates a part of the stretched rubber belt between the heating plates of the pressing machine. Because it can be moved to insert into.

In the vulcanizing apparatus according to the second aspect of the present invention, since the two shafts of each belt tensioning machine are horizontal and the press machine sandwiches the rubber belt from above and below, it is most preferable to hold the rubber belt. Also,
Inserting a part of each belt alternately between the heating plates,
Since each belt tensioning machine swings horizontally around the vertical support shafts on both sides of the press machine, the configuration is simple enough to realize the function, and there are few failures.

Since the vulcanizing apparatus of claim 3 has the belt peeling means on the side of the heating plate located inside the rubber belt, when the heating plate is opened after the vulcanization is completed, the rubber belt is smoothly removed from the heating plate. It can be peeled off, and the subsequent steps can be smoothly advanced to improve the productivity of the rubber belt.

[Brief description of drawings]

FIG. 1 is an overall plan view of a vulcanizing apparatus that is an embodiment of the present invention.

FIG. 2 is a front view of a main part of the vulcanizing apparatus, which is shown in FIG.
It is a II-II arrow line view.

3 is a detailed view showing a belt tensioning machine of the vulcanizing apparatus, FIG. 3 (a) is a front view, FIG. 3 (b) is bb in FIG.
It is an arrow view.

4 is a side view showing in detail a pressing machine of the above-mentioned vulcanizing apparatus, which is a view taken along the line IV-IV in FIG.

[Explanation of symbols]

 1 Press Machine 6/7 Spindle 10 Heating Plate 20 Opening / Closing Means 30 Pressure Holding Means 40 Belt Peeling Means 100/200 Belt Tensioning Machine 110/120 Shafts 130 Rotation Drive Means 140 Shaft Distance Setting Means 150 Moving Means 151/152 Wheels 160 Positioning Means A Rubber Belt

Claims (3)

[Claims] 1. A vulcanizing apparatus for vulcanizing an endless rubber belt in a state of being stretched between two shafts, wherein a pair of heating plates for heating the rubber belt by sandwiching the rubber belt from the front and back, and its opening and closing means and pressure holding means. It is equipped with two shafts for tensioning a rubber belt, a means for setting the distance between the axes, and a rotation driving means for the shaft with respect to one press machine having a. A vulcanizing device having two belt tensioning machines that can be moved to be inserted. 2. The two shafts of each belt tensioning machine are horizontally arranged, and the pressing machine sandwiches a rubber belt from above and below with a heating plate, and vertical supporting shafts are provided on both sides of the pressing machine. Is to perform the above-mentioned movement by turning around one of the support shafts using wheels as moving means, and a part of the rubber belt is inserted between the heating plates of the press machine to The vulcanization apparatus according to claim 1, further comprising a positioning means for determining a position. 3. A plurality of moving nuts, each of which has a right-handed threaded portion and a left-handed threaded portion, is fitted with a moving nut, and some of the nodes can project upward or downward as the two moving nuts approach each other. A belt peeling means is configured by connecting the links of the nodes, and the belt peeling means is arranged on the side of one heating plate located inside the rubber belt inserted in the stretched state in the press machine. The vulcanizer according to claim 1 or 2.