专利摘要:
In a method for the continuous manufacturing of a conveyor belt provided with outer rubber linings and with a reinforcement web in the form of longitudinal steel cables, the cables are kept under tension when applying the upper and lower rubber linings. The rough belt thus obtained is then cured or vulcanized under pressure and under heat conditions. Prior to its application onto the steel cables and prior to the outer lining, the radially inner rubber lining is submitted to a premature vulcanization. The device for the continuous manufacturing of the conveyor belt comprises for each of the lower and upper linings (11, 12) an extrusion calender (2, 4 and 3, 5). At least one doubling frame (15, 17; 22, 23) is intended to assemble the linings (11, 12). A heating device (24, 26) is arranged between the doubling frame (22, 23) and the extrusion calender (2, 4) which produces the lining (16) upon the final vulcanization.
公开号:SU965344A3
申请号:SU802934351
申请日:1980-06-18
公开日:1982-10-07
发明作者:Решке Райнхольд
申请人:Херманн Бершторфф Машиненбау Гмбх (Фирма);
IPC主号:
专利说明:

The invention relates to the manufacture of rubber products, in particular to the continuous manufacture of cable-reinforced conveyor belts.
A known method for the continuous manufacture of rubber conveyor belts with longitudinal metal reinforcement, in which the layers of the rubber tape are connected to the longitudinal reinforcement and vulcanized on a drum vulcanizer £ ij.
However, during vulcanization, the tensioned reinforcement is pressed into the rubber layer interacting with the surface of the drum vulcanizer, i.e. the reinforcement is displaced in the longitudinal section of the tape blank.
The closest to the proposed technical essence and the achieved effect is a method of manufacturing conveyor belts, in which the upper and lower rubber layers are applied to the longitudinal metal reinforcement held in a state of tension to form a blank of the belt and vulcanize the latter on a drum vulcanizer [2].
With this method, to compensate for 5 'deviations of the longitudinal reinforcement, the rubber layer interacting with the surface of the drum vulcanizer is made thicker than the layer farther from its surface. 10 However, in this case there is a displacement of the reinforcement in the longitudinal section of the tape, which negatively affects its operational properties.
The purpose of the invention is the prevention of displacement of the reinforcement in the longitudinal section of the tape.
This goal is achieved by the fact that according to the method, the upper and lower rubber layers are applied to the longitudinal metal reinforcement held in a state of tension to form a blank of the tape and the latter is vulcanized on a drum vulcanizer, before applying the rubber layer to the reinforcement, it interacts with the surface of the drum vulcanizer is vulcanized, which leads to an increase in the resistance of the rubber layer interacting with the surface of the drum vulcanizer , Tension reinforcement, and thus the latter can occupy the desired position in the stream, which is determined by the degree of scorch of the rubber layer.
The drawing shows a device for the manufacture of rubber conveyor belts with longitudinal reinforcement, General view.
The method is as follows.
Out of the slotted heads 1 and · 2 of the extruders 3 and 4, the rubber layers 5 and 6 pass through the calender rolls 7 and 8, respectively. Layer 6 is laid by means of a roller conveyor 9 and a pressure roll 10 on an endless steel strip 11 and 25 is brought to the first pair of backup rolls 12 and 13. In the latter, metal reinforcement is pressed into the lower rubber layer 6, for example, steel wire 14 held in tension tensioning beams 15 and passing through a guide roller 16 having distribution grooves. (not shown). The resulting connection is transported by a horizontal branch of an endless belt 11 to the second pair of backup rolls 1 and 18 where the wire 14 superimposed upper rubber layer 5 is directed after the calender rolls 7 by means of the roller conveyor 19 via the first tension roller 20 at the periphery of the drying drum 21 with a wrap angle of, e.g., 200 e, and then along the radiation heating element 22.
The surface of the rubber layer 5 facing the surface of the drying drum 21 of the radiation element 22 is vulcanized. The degree of vulcanization is controlled by the heating temperature.
After applying the rubber layer 5, the formed preform 23 of the conveyor belt is fed through the belt 11 to the surface of the drum vulcanizer 24 and vulcanized in the pressing section covered by the endless belt 11. Two-sided heat is supplied to the workpiece 23 from the inside of the vulcanizer 24, as well as by means of a radiation heating element 25, S installed on the outside of the endless tape lie the place of grasp of the vulcanizer 24. The tension of the endless tape 11 is created by the rollers 26-28 and the backup roll 13.
; The vulcanized conveyor belt / y 29 is taken from the moving belt 11 and fed to the devices (not yet eany) for subsequent operations.
Due to the fact that the rubber layer -5 interacting with the vulcanizer 24 is pre-vulcanized, it becomes hard. This prevents penetration into the named layer of the stretched steel wire when the workpiece passes through the pressing section of the drum vulcanizer, i.e. displacement of the reinforcement in the longitudinal section does not occur.
Thus, the proposed method allows you to accurately determine the location of the reinforcement and to prevent its displacement in the longitudinal section of the coned-belt, which is achieved by selecting the degree of vulcanization, which determines the resistance of the base layer I to the penetration of the wire in a state of stretching during passage through 95 cooking vulcanization site.
The application of the proposed method will allow to produce conveyor belts in a continuous way using a drum vulcanizer with obtaining high performance properties.
权利要求:
Claims (2)
[1]
imposing a rubber layer on the reinforcement of interactions during vulcanization with the surface of a drum vulcanizer, it is vulcanised that. leads to an increase in the resistance of the rubber layer, interacting with the surface of the drum vulcanizer, tensioning the reinforcement, and thus the latter can occupy the required position in the tape, which is determined by the degree of vulcanization of the rubber layer. The drawing shows a device for the manufacture of rubber conveyor belts with longitudinal reinforcement, a general view. The method is carried out as follows. The outgoing from the slot heads 1 and 2 of the extruders 3 and and the rubber layers 5 and 6 pass through the rolls of the calenders 7 and 8, respectively. Layer 6 is laid by means of a roller conveyor E and pressure roller 10 onto an endless steel belt 11 and fed to the first pair of duplicating rollers 12 and 13. In the latter, metal reinforcement is pressed into the lower rubber layer 6, for example steel wire 1 held in stretching by tension (with the lids 15 and passing through the guide roller 16, having distribution grooves. (not shown). The resulting connection is transported horizontally by the branch of the endless belt 11 to the second pair of duplicating rolls 1 and 18, where Ovolok Ts impose the upper rubber side 5 directed after the rolls of the calender 7 by means of the roller conveyor 19 through the tension roller 20 first to the periphery of the drying drum 21 with a wrap angle of, for example, 200, and then along the radiation heating element 22. Reversed to the surface of the drying drum 21 and the radiation element 22, the surface of the rubber layer 5 is pre-vulcanised. The degree of pre-vulcanization is controlled by the heating temperature. After applying the rubber layer 5, the formed billet 23 of the conveyor belt is fed through the belt 11 to the surface of the drum vulcanizer 2 and vulcanized at the press section covered by the endless belt 11. Dvukhstorone 4 of the research institute supplies heat to the workpiece 23 from the inside of the vulcanizer 2k 25 installed on the outside of the endless belt 11 in place of the vulcanizer girth
[2]
2. The tension of the endless belt 11 is created by the rollers 26-28 and the backup roller 13. The vulcanized conveyor belt / y29 is taken from the moving belt 11 and fed to the devices (until Eana) for subsequent operations. Due to the fact that the rubber layer -5, which interacts with the vulcanizer, is pre-cured, it becomes hard. This prevents the penetration of a layer in the state of stretching of the steel wire during the passage of the blank through the press section of the drum vulcanizer, i.e. rebar displacement in longitudinal section does not occur. Thus, the proposed sprozb allows to accurately determine the location of the reinforcement and prevent it from 1 in the longitudinal section of the conveyor belt, which is achieved by selecting the degree of vulcanization, which determines the resistance of the undercoat-J of the lower layer to penetration into the stretched gf wire. the preparation of the site of vulcanization. The application of the proposed method will allow the manufacture of conveyor belts in a continuous manner using a drum vulcanizer with obtaining high performance properties. Claims of the Invention Sposbb of continuous manufacture of rubber conveyor belts with longitudinal metal reinforcement, in which the upper and lower rubber layers are superimposed on the longitudinal metallic reinforcement held in the stretched state to form a tape blank and vulcanize the latter on a drum vulcanizer, characterized in that displacement of reinforcement in prodol5 9653
Nominal cross section of the tape, in front of the Overlay Information Sources,
rubber reinforcement taken into account during examination
interacting with volcanic - German N 2129CH39,
with drum surface / o 1
vulcanizer, podvulkanizo-5 Application for Germany (G I93i972, vyvyat.
cl. In 29 N 7/22, published. 1977 (prototype)
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同族专利:
公开号 | 公开日
EP0020406A1|1981-01-07|
JPS55500777A|1980-10-16|
WO1980000815A1|1980-05-01|
SE418162B|1981-05-11|
US4361456A|1982-11-30|
DE2845476A1|1980-04-24|
SE8004294L|1980-06-09|
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法律状态:
优先权:
申请号 | 申请日 | 专利标题
DE19782845476|DE2845476A1|1978-10-19|1978-10-19|METHOD AND DEVICE FOR THE CONTINUOUS PRODUCTION OF A CONVEYOR BELT|
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