SU870177A1 - Press for local vulcanization of conveyer belts - Google Patents

Description

(5D) PRESS FOR LOCAL VOLCANO WOOD CONVEYOR TAPES

The invention relates to the manufacture of rubber technical products and is intended for local vulcanization of conveyor belts during their assembly and repair. A press is known for local vulcanization of conveyor belts containing interconnected support beams, between which heating elements and pressing plates 1 are located. In this device, the support beams are connected to each other by means of fasteners in the form of bolts and nuts, therefore, considerable time is spent on disassembling and assembling the press during operation. The closest in technical essence and the achieved effect to the described invention is a press for local vulcanization of conveyor belts, which contains the lower and upper heating plates located between the lower and upper cross-beams and folding straps installed in the brackets of the lower cross-bar by means of axles and going into the grooves made on the upper cross bar 2. In the known device, it takes a lot of time and special devices to create the required pressure at the junction (10-12 kg / cm) The key is used to create the calculated torque, since the head of the clamping bolt is made in the form of a nut. In order to ensure even clamping over the entire joint area, it is necessary to simultaneously tighten the nuts of each traverse. The joint length depends on the width of the conveyor belt, the number of gaskets and reach 3 m. If the width of the traverse reaches 0.15 m, it bears one straps on each side, the total number of nuts that need to be tightened reaches 3 pieces, therefore when assembling and disassembling a known device During operation, the operation of tightening the nuts requires considerable physical effort and considerable time, which exceeds the time required for mounting the press and the vulcanization process itself. The aim of the invention is to facilitate maintenance of the press and reduce the time for the stands to be tightened. To achieve this goal, in a press for local vulcanization of coyer belts containing lower and upper heating shafts located between the lower and upper cross-beams, and folding fastening racks installed by means of axles in the brackets of the lower cross bar and behind: going into grooves made in the upper strut, folding stanchions are made in the form of fingers with cylindrical heads at both ends, on the heads of the BOTTOM. Their ends are eccentrically fixed to the axis, and locks are mounted on the upper Befjce rail olovok upper ends of the fingers and lower beam brackets formed profiled grooves for positioning axes. Locks for fixing the head of the upper ends of the fingers are made in the form of flat springs interacting with the lateral surface of the heads. FIG. Figure 1 shows the press for local vulcanization described; FIG. 2 is a section A-A in FIG. one; in fig. 3 is a view B in FIG. 2. A press for local vulcanization of conveyor belts contains the upper 1 and lower 2 crossheads and the lower 3 and upper 4 heating plates located between them and the pressing element 5. The crossbars 1 and 2 are interconnected by folding stanchions 6. Fixed stands 6 are made in the form of fingers with cylindrical heads 7 and 8 at both ends, axes 9 are eccentrically fixed on heads 8 of the lower ends of the fingers. In the brackets 10 of the lower traverse, grooves 11 are made for mounting axes. In the upper traverse, grooves 12 are installed. st oek Locks 1 are also mounted on the upper traverse for fixing the heads 7 of the upper ends of the fingers. The locks 13 are made in the form of flat springs 14, interacting with the side surface of the head 7. The press has shims 15 with cutouts 16 for installation between the upper heads 7 and the upper crosshead I at small thicknesses of the vulcanizable tape. In accordance with the size of the vulcanized area in the press, there can be several upper 1 and lower 2 crossbars and rigid posts 6. The installation and operation of the press is carried out as follows. On the frame 17, lower cross braces 2 are installed, on which axles 9 in the grooves 11 of the brackets 10 are fixedly hingedly attached to the strut 6 (in Fig. 2 are shown in thin lines. On the lower cross bar 2 is placed the lower heating plate 3, on which the joint or repaired a section of the conveyor belt 18. Then the upper heating plate 4, the crimping element 5 and the upper traverse 1 are mounted. Then the supports 6 are rotated on axles 9 in the slots 11 of the brackets 10 in the vertical plane until they enter the slots 12 of the upper traverse and are fixed in the locks 13. T Since the thickness of the conveyor belt 18 can be different (from 9 to 30 mm), in order to reduce the filling time of the crimping unit with the working medium, spacers 15 corresponding to the gaps between the upper heads of the 7 fingers and traversate 1 are inserted into the gaps. the tape 18 creates a predetermined pressure pressing element 5, turns on the heat transfer medium to the heating plates 3 and 4, and cures it. At the end of the vulcanization of the joint of the conveyor belt, the dismantling of the press takes place in reverse order. The described press has a reduced installation and disassembly time and is easy to maintain, as a result of which the repair time of the conveyor belt and the maintenance effort of the press are reduced by 40-50%. claims 1. A press for local vulcanization of conveyor belts containing lower and upper heating plates located between the lower and upper cross-beams and folding clamping stands 58

ki mounted in the brackets of the lower traverse by means of axles and entering into the grooves made on the upper traverse, characterized in that, in order to facilitate maintenance of the press and reduce the time of tightening the racks, folding housings are made in the form of fingers both ends, on the heads of the lower ends of which the axles are eccentrically fixed, on the upper traverse, there are mounted locks for fixing the heads of the upper ends of the fingers, and in the brackets of the lower traverse

76, shaped grooves for mounting axles are made.

2. Press pop, 1, o ff p and h and zhgsch and the fact that the locks e) t fixing the heads of the upper ends of the finger-. Tsev made in the form of flat springs that interact with the lateral surface of the heads.

Sources of Information taken into account in the examination

1. Authors certificate. USSR 598766, cl. B 29 N 5/16, 1976;

2. US patent 2248499, cl. 425II, pub. 1941 (prototype).

Claims (2)

Claim 1. Press for local vulcanization of conveyor belts, comprising lower and upper heating plates located between the lower and upper traverses, and folding tie rods installed in the brackets of the lower traverse by means of axes and entering into grooves made on the upper traverse, characterized in that, in order to facilitate the maintenance of the press and reduce the tightening time of the racks, the folding tie rods are made in the form of fingers with cylindrical heads at both ends, on the heads of the lower ends of which are eccentrically fixed s axis, on the upper crosspiece smontirovanG locks for fixing the upper head ends of the fingers, and in the lower beam brackets 870177 6 profile grooves are made for mounting the axles. 2. Press pop, 1, revealing that the locks for fixing the heads of the upper ends of the fingers are made in the form of flat springs interacting with the side surface of the heads. Sources of information, Taken into account in the examination 1. Copyright certificate <USSR No. 598766, cl. In 29 H 5/16, 1976 " 2. US Patent No. 2248499, cl. 425II, published. 1941 prototype). ^ 1 <bh I