JPS61273914A - Vulcanizing device for endless rubber belt - Google Patents

Abstract

PURPOSE:To provide the vulcanizing device high in working efficiency by a method wherein two sets of a pair of pulleys are arranged in parallel so as to move in the transversal direction of the device selectively between the position of an intermediate mold and a position at the side thereof while the intermediate mold is supported by a pair of supporting devices free to advance and retreat. CONSTITUTION:A plurality of unvulcanized rubber belts A, stretched between one of the pulley devices 17, are vulcanized by vulcanizing device 1. Unvulcanized belts B are stretched between the other pulley devices 18. The belts A are pinched by the intermediate molds 13, 14 and upper and lower molds 7, 8 for a predetermined period of time to vulcanize the predetermined lengths of opposing upper and lower parts of the belts A, thereafter, the upper and lower molds 7, 8 are opened to rotate the pulley devices 17 by a drivig device by a predetermined angle and the upper and lower molds 7, 8 are connected to the intermediate molds 13, 14 again to vulcanized the new parts of the belts A. The vulcanizing work of overall length of the belts A is finished by repeating such vulcanizing works. A pair of cylinder devices 26 is extended simultaneously and an intermediate stand 25 is moved transvesally while the nonvulcanized belts B, stretched between the pulley devices 18, are arranged in the position of the vulcanizing device 1 and the vulcanizing work may be effected in the same manner.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an apparatus for vulcanizing an endless rubber belt.

(Prior Art) The conventional main body of this type of vulcanization apparatus is as shown in FIG.
Middle molds 13 are installed on both the upper and lower surfaces of the middle heat plate 12, respectively.
．． 14 is supported on the outer end of a support member 33 that protrudes laterally from the middle position of the U-shaped frame 2°, and the middle mold 13 is supported by cylinder devices 3 and 4 that can move forward and backward at both upper and lower ends of the frame 2°. It consists of a structure in which upper and lower molds 7 and 8 each having heating plates 5 and 6 are supported facing each other.

As shown in FIG. 9, a pair of tension applying pulley devices 17' are arranged at a predetermined distance apart from each other with the main body of the vulcanizing device in between, and an endless unvulcanized material is stretched between the pulley devices 17'. Rubber bell) A was intermittently vulcanized by a vulcanizer main body in predetermined lengths.

(Problem to be solved by the invention) Generally speaking, a rubber belt has a
Since a synthetic resin cord such as nylon is interposed, after the entire length of the belt is vulcanized using a vulcanizing device,
With the upper and lower molds separated and the molds opened, it is necessary to apply tension to the belt while it is being stretched between the pulley devices until the belt is cooled to a temperature close to room temperature. be.

Therefore, conventional vulcanizing equipment cannot vulcanize other unvulcanized belts while tension is being applied to the vulcanized belt, so the vulcanizing operation cannot be continued during this time. First, the work efficiency was extremely poor.

,-, This invention was made in view of the above-mentioned points, and it is possible to apply tension to the belt after vulcanization, while continuing to vulcanize other uncured belts.
We would like to provide a vulcanizing device that can be used and has high work efficiency.
It is intended to be

□” (Means to solve the problem)
The basic structure of the present invention that achieves the above object is that two pairs of pulley sets are arranged side by side, and each Boo JJ set can be selectively moved laterally between the middle mold position and its lateral position. The inner mold is supported by a pair of support devices that can move forward and backward.

(Function) According to the vulcanizing device of the present invention, the inner mold is supported while the unvulcanized endless belt (group) stretched between one pulley device is being vulcanized. By opening the support device, a new unvulcanized endless belt (group) can be placed between the other pulley device, and as a result, when the vulcanization work of one belt (group) is completed, The state in which the upper and lower molds are opened and the belt (group) is taken out from the middle mold, and then the pulley device is moved laterally to move the vulcanized belt (group) to the side of the middle mold. While continuing to apply tension using the pulley device, the unvulcanized belt (group) is laterally moved to the middle mold position, the upper and lower molds are closed, and the vulcanization operation can be performed continuously.

(Example) 5.2T-'''Oi1!j17)X)titJelm[
cMdbt7m, clear.

The first side is an overall plan view of the device of this embodiment, and FIG.
is a sectional view taken along the line Φ■-■ in FIG.

-゛ In these drawings, the vulcanizing device main body 1 has the following configurations. A cylinder device 3.4 is provided oppositely facing each other in the frame body 2, and the upper and lower molds 7, 8 are installed on the upper and lower heating plates 5, 6. Said cylinder device;・R:'' Stand, 1, 3, 4 (7) tl) 7F end ゚Fixed supporting plate 9, 10°. 11 is a medium mold device, and the top and bottom of the medium heating plate 12 are fixed. It consists of a structure in which middle molds 13.14 corresponding to the upper and lower molds 7.8 are installed on both sides. . The engaging claw portion 15a is pivotably mounted to be swingable, and the other end thereof is removably engaged with the engaging holes 111, 64 and 64, a on both sides of the middle mold device!11.
, 16a are suitably supported by a pair of support devices 15, 16.

·, C. The horizontal swinging of each support device 15, 16 is performed by a drive device (not shown).

Reference numerals 17 and 18 each represent a pair of pulley devices, and the pulley devices 17 and 18 are placed side by side facing each other at a predetermined distance apart so as to selectively sandwich the vulcanizer main body 1. Reference numeral 20 denotes an upper pedestal common to the pulley devices 17 and 18, and each upper pedestal 20 is disposed on the base 19 so as to be movable in the vertical direction facing each other. Then, they are each moved via a support piece 24 whose one end is connected to a female screw sleeve 23 that is screwed into a screw rod 22 rotated by the main drive device 21 for applying belt tension.

Reference numeral 25 denotes a middle pedestal common to each pulley device 18, 19, which is disposed on the upper pedestal 20 so as to be movable in the lateral direction, and is moved by a cylinder device 26 provided at one end on the upper pedestal 20.

27 and 28 are a pair of left and right upper pedestals placed side by side on the middle pedestal 25, and each of the upper pedestals 27 and 28 is disposed so as to be movable in the vertical direction on the middle pedestal 25, and is disposed at the front end of the middle pedestal 25. They are each individually moved by an auxiliary belt tensioning cylinder device 29.

On each upper pedestal 27.28, said pulley device 17.18
are arranged respectively. By the way, each pulley device 1
7.18 is a wide boob IJ30 to which a plurality of endless belts A can be attached, each of which is rotatably mounted on a bearing 31.31'', and a pulley 30 can be rotated intermittently at predetermined angles by a drive device 32. Furthermore, one of the bearings 31'' is made removable from the boot IJ30 for attachment of the endless bell) A.

The diameter of the pulley 30 is set to be slightly larger than the height H of the middle mold device 11. In addition, the middle mold device 11
The supply of heat sources such as electric power or steam to the medium heat plate 12 is carried out by providing electrical contacts, couplers (not shown), etc. at the joints between the medium mold 13, 14 and the upper and lower molds 7, 8. Make it.

FIG. 8 is a sectional view showing another embodiment of the support device for the middle mold device, and the difference from the previous embodiment is that arms Ilb are provided extending from both sides of the middle mold device 11, and the tip of each arm Ilb is A retaining hole 11a is formed in the support device 15.1.
6 is that the length is shortened and the guide members 15b and 16b are arranged along the left and right frames 2c and 2d so as to be movable up and down, respectively.

Next, the vulcanization mode of the unvulcanized endless belt in the vulcanizing apparatus of the above embodiment will be explained based on FIGS. 3 to 7.

Figure 3 is a sectional view taken along the line l-11 in Figure 1 (the figure shows a plurality of unvulcanized bells stretched between one pulley device 17) A is vulcanized by the vulcanizer 1. The unvulcanized belt B is also stretched between the other pulley device 18. In this state, use the middle mold 13.14 and the upper and lower molds 7.8 to make the bell I-A.
are clamped for a certain period of time and the opposing upper and lower parts of the belt A are vulcanized for a predetermined length, then the upper and lower molds 7.8 are opened, the pulley device 17 is rotated by a predetermined angle by the drive device 32, and the upper and lower molds are vulcanized again. The molds 7 and 8 are joined to the middle mold 13 and 14 and vulcanized.

By repeating this vulcanization process, Bell l-A
The vulcanization work has been completed over the entire length. In addition, the upper and lower molds 7,
8 is joined to the middle mold 13 and 14 in the vulcanized state, the middle mold device 11 is pushed up slightly by the lower mold 8, and the retaining hole 11a and the engaging claws 15a and 16a of the support device are connected to each other. The bond with

Next, as shown in FIG. 4, when the upper and lower molds 7.8 are opened, the middle mold device 11 is lowered slightly so that the retaining hole 11a engages the engaging claws 15a and 16a of the support device. and support device 15. The middle mold device 11 is supported by I6. In this state, the bell l-A is removed from the middle mold device 11.

Next, as shown in FIG. 5 (al and (bl), the pair of cylinder devices 26 are extended simultaneously to move the middle pedestal 25 laterally, and the unvulcanized belt B stretched between the pulley devices 18 is vulcanized. It is placed at the position of the curing device 1. In this state, the vulcanization work is performed in the same manner as the vulcanization work of the belt A described above.

Then, while the vulcanization work of the bell I-B is progressing, that is, the engagement hole portion 11a and the engagement claw portion 15a of the support device.

16a, the support device 15.16 is horizontally swung approximately 90 degrees, as shown in FIG.
By contracting the cylinder device 29, the distance between the pair of pulleys 30 is shortened, and the vulcanized belt A is transferred to the pulley device 17.
At the same time, as shown in FIG. 7, a new unvulcanized belt C is attached to the pulley device 17.

Incidentally, the vulcanized bell l-A is sufficiently cooled by cooling air, cooling water, etc. during the vulcanization work of the belt B.

Then, the support device 15.16 is horizontally swung back to the original position, and when the vulcanization work of the belt B is completed, the upper and lower molds 7.8 are opened, and the same is done as in FIG. 5(b) above. becomes the state of

In this way, by vulcanizing the belt stretched between one pulley device and cooling the belt stretched between the other pulley device, the belt vulcanization work can be performed continuously. .

(Effects) As explained above, since this belt vulcanizer has the above configuration, it produces the following effects.

In other words, the intermediate heating plate and the support device for the intermediate mold attached to the upper and lower surfaces of the intermediate mold are in a state where the upper and lower molds are joined to the intermediate mold, in other words, in a vulcanized state, so that there is no problem in attaching and detaching the endless belt to the pulley device. The middle heating plate and the middle mold are supported floatingly by the upper and lower molds, so that while the belt(s) stretched around one pulley device is being vulcanized, , the already vulcanized belt(s) passed around the other pulley device can be cooled, and once cooling is complete, it can be removed and a new unvulcanized belt can be installed, effectively linking belt vulcanization operations. Work efficiency is extremely high as it can be done continuously.

1." Also, as a result, the vulcanization work cost per belt can be reduced, and the work space can also be reduced.Furthermore, the medium heating plate and the medium mold can be supported from both sides (from the support device). Because of this, the sled can be supported more reliably and accurately than conventional cantilever support.

[Brief explanation of the drawing]

FIG. 1 is an overall plan view of a belt vulcanizing apparatus according to an embodiment of the present invention, FIG. 2 is a sectional view taken along line nn in FIG. 1, and FIG. Figures 4 to 7 are drawings showing the belt vulcanization process step by step, Figure 5(a) is a plan view, and Figure 5(b) is a view taken along line V-V in Figure 5(a). This is a cross-sectional view in the same manner as FIG. 3 except for the cross-sectional view. FIG. 8 is a sectional view showing another embodiment of the support device for the middle mold device, FIG. 9 is a front view of a conventional vulcanizing device, and FIG. 10 is a mold opening taken along the line X-X in FIG. 9. It is a sectional view of the state. DESCRIPTION OF SYMBOLS 1... Vulcanizing device main body, 2... Frame body, 7, 8... Upper and lower molds, 11... Middle mold device, 12... Medium heating plate, 1
3.14... Middle mold, 15.16... Support device, 1
7.18...Pulley device, A, B, C...belt.

Claims (1)

[Claims] One or more unvulcanized endless rubber belts are stretched between a pair of tension applying pulleys separated by a predetermined distance, and the belts are placed between the upper and lower facing surfaces of the belts, and are respectively attached to the upper and lower surfaces of the medium heating plate. The upper and lower molds equipped with spaced-apart heating plates that can move forward and backward are respectively joined to the middle mold, and a predetermined length of the upper and lower belt surfaces is vulcanized, and the upper and lower molds are moved in opposite directions. In an apparatus that vulcanizes a belt by feeding the belt a predetermined length using the pulley at a distance from the mold, and repeating the vulcanization operation and the belt feeding operation, two of the pair of pulley sets are placed side by side. In addition, each pulley set is arranged to be selectively laterally movable between the middle mold position and its lateral position, and the middle mold is supported by a pair of support devices that can move forward and backward. A unique endless rubber belt vulcanization device.