CN103862688A - Method for preparing anti-tear conveying belt - Google Patents
Method for preparing anti-tear conveying belt Download PDFInfo
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- CN103862688A CN103862688A CN201410073165.1A CN201410073165A CN103862688A CN 103862688 A CN103862688 A CN 103862688A CN 201410073165 A CN201410073165 A CN 201410073165A CN 103862688 A CN103862688 A CN 103862688A
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- steel cord
- tear
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Abstract
The invention provides a method for preparing an anti-tear conveying belt. The method comprises the following steps: (a) providing a steel cord fabric framework layer; (b) mixing a rubber raw material and impregnated fibers to prepare a semi-finished coating product; (c) rubberizing two sides of the steel cord fabric by a rolling method, and then, respectively rolling two sides of the rubberized steel cord fabric with the semi-finished coating product to form a conveying belt prefabricated part; (d) vulcanizing, finishing and reeling the conveying belt prefabricated part to obtain the anti-tear conveying belt. According to the preparation method, the steel cord fabric is integrated in the frame anti-tear layer, the tear clearance is nearly zero, the strength between warps and wefts is higher than that of the fabric core, the tear resistance is improved, the edge is strengthened, and damage is prevented in back-and-forth operation; the impregnated fibers P are added into the coating, so that the strength and tearing resistance of the conveying belt are improved.
Description
Technical field
The present invention relates to rubber manufacture field, relate in particular to a kind of preparation method of anti-tear conveyer belt.
Background technology
Stacker-reclaimer is mainly used in bulk cargo stockyard handling iron ore (sand), coal, the sand etc. in bulk goods specialized marine terminal, steel plant, large-size thermal power plant and mine etc.This machine because of its operating efficiency high, therefore be at home and abroad used widely.The harbours such as Shanghai of China mainland, Ningbo, Guangzhou, Qinhuangdao, Qingdao, sunshine, Nanjing have all had this machinery
At present, stacker-reclaimer conveyer belt adopts the anti-conveyer belt that tears of common fabric core, the anti-poor performance of tearing, when operation, limit portion easily damages, and convey materials is more open, and not timing has the sharp-pointed article conveyer belt that falls, cause tearing of conveyer belt, and material easily enters the gap of its non-working surface and roller, the non-working surface of compressive zone etc., composite factor causes its life-span greatly to shorten.
On the other hand, this conveying is with the structure composition of upper caldding layer, anti-tear layer, the total casing play of multiply cloth, anti-tear layer, lower caldding layer, and complex process, affects production efficiency.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of tearing strength high, long service life, the preparation method of the conveyer belt that production efficiency is high.
In order to solve above technical problem, the invention provides a kind of preparation method of anti-tear conveyer belt, comprising:
A) provide steel cord cloth casing play;
B) rubber raw materials is mixed with latex bonded fibre and carry out mixingly, make cover layer semi-finished product.
C) described steel cord cloth is passed through to calendering double spreading, then cover layer semi-finished product are rolled respectively on the steel cord cloth two sides after described rubberizing, form conveyer belt prefabricated component;
D) described conveyer belt prefabricated component vulcanized, repair, batch and obtain anti-tear conveyer belt.
Preferably, the steel cord cloth casing play of described step in a) is to work out by steel cord the cloth shape casing play forming.
Preferably, described latex bonded fibre is latex bonded fibre p.
Preferably, steps d) in sulfuration be specially: described conveyer belt prefabricated component is heated to 25～35min at 140～160 DEG C.
Preferably, described calendering is used four-roll calender.
Preferably, the gap of tearing of described casing play is 0～2mm.
Preferably, steps d) after sulfuration, described cover layer semi-finished product form cover layer.
Preferably, described cover layer has network structure.
The preparation method who the invention provides a kind of anti-tear conveyer belt, comprising: steel cord cloth casing play a) is provided; B) rubber raw materials is mixed with latex bonded fibre carry out mixing, make cover layer semi-finished product c) by described steel cord cloth by calendering double spreading, then cover layer semi-finished product are rolled respectively on the steel cord cloth two sides after described rubberizing, form conveyer belt prefabricated component; D) described conveyer belt prefabricated component vulcanized, repair, batch and obtain anti-tear conveyer belt.Preparation method provided by the invention adopts steel cord cloth to make the anti-tear layer of skeleton one, and tearing gap is zero substantially, and between longitude and latitude, strength ratio fabric core intensity is large, increases tear resistance, and limit portion strengthened, come and go in service, not fragile.Cover layer adds latex bonded fibre P, has improved intensity own and has prevented wearing tearing performance.
Brief description of the drawings
The structure of conveyer belt in Fig. 1 prior art;
The structure of conveyer belt prepared by Fig. 2 embodiment provided by the invention.
Detailed description of the invention
In order further to understand the present invention, below in conjunction with embodiment, the preferred embodiments of the invention are described, but should be appreciated that these are described is the restriction for further illustrating the features and advantages of the present invention instead of patent of the present invention being required.
Originally product structure complexity, operating procedure is loaded down with trivial details, specific as follows: refining glue: go out cover layer, anti-layer, the fabric core layer sizing of tearing by mixer mixing.Calendering: upper and lower cover layer extrudes with calender compressing tablet.Fabric core casing play, every layer is sticked the sizing material semi-finished product of coupling by calender.Anti-tear layer sticks the sizing material semi-finished product of coupling by calender.Moulding: first spell the good multilayer fabric core of width casing play, then spread anti-tear layer at upper and lower faces respectively, upper and lower cover layer is spread in final step, batches by hold-down roller.Sulfuration: under the process conditions of 150 DEG C × 45 points, vulcanize, repair, batch.But sandwich construction, easily shows interlayer aeration quality.This tearing layer gap is large, protective is poor, fails effectively to being with upper and lower cover surface and limit portion effectively to protect.
Preparation method provided by the invention comprises: steel cord cloth casing play a) is provided; B) rubber raw materials is mixed with latex bonded fibre and carry out mixingly, make cover layer semi-finished product; C) described steel cord cloth is passed through to calendering double spreading, then cover layer semi-finished product are rolled respectively on the steel cord cloth two sides after described rubberizing, form conveyer belt prefabricated component; D) described conveyer belt prefabricated component vulcanized, repair, batch and obtain anti-tear conveyer belt.The present invention adopts steel cord cloth as casing play, substitutes original prior art anti-tear, and the little or gapless in gap, reduces to 2mm or 0 by original anti-tear lamellar spacing.Conveyer belt structure is simple, needs only upper and lower cover layer, casing play composition, the loaded down with trivial details structure before replacing.Cover layer synchronously adds latex bonded fibre long filament P when mixing, is uniformly distributed, and reticulates structure, in the past without this raw material.According to the present invention, described calendering is used four-roll calender.
More specifically as depicted in figs. 1 and 2, wherein Fig. 1 is the structure of conveyer belt in prior art, comprises upper caldding layer 1, the upper anti-casing play 3 of layer 2, multiply cloth formation, lower anti-layer 4, the lower caldding layer 5 of tearing of tearing.Fig. 2 is conveyer belt result prepared by the embodiment of the present invention, comprises upper caldding layer A, casing play B, lower caldding layer C.Analysis from scheming, simple in structure after improving, technique is succinct, and production efficiency is high, is reduced to 3 days by 7 days former production cycles, has reduced especially moulding link.
According to the present invention, the steel cord cloth casing play of described step in a) is to work out by steel cord the cloth shape casing play forming.Steel cord refers to and is made up of more than two or two steel wire, or by thigh with strand combination or the structure being formed by thigh and the combination of silk.Steel cord is with the development of radial, and radial is the accompaniment of auto industry and highway.Described latex bonded fibre is latex bonded fibre p.Described latex bonded fibre p is preferably the aramid fiber of long filament.According to the present invention, described rubber raw materials preferably includes: natural rubber, solution polymerized butadiene styrene rubber, butadiene rubber, promoter, activating agent, age resistor, homogenizing agent, reinforcing agent, softening agent, described crosslinking agent are sulphur, dithiodimorpholine; Promoter is preferably the N-tert-butyl group-2-benzo and sleeps and stare at base sulfenamide; Activating agent is preferably oxidation diction, stearic acid; Reinforcing agent is preferably carbon black; Age resistor is preferably 2,2,4-trimethyl-1,2-dihyaroquinoline condensate, N-isopropyl-N '-diphenyl-para-phenylene diamine or paraffin.
According to the present invention, described steps d) in sulfuration be specially: described conveyer belt prefabricated component is heated to 25～35min at 140～160 DEG C.Steps d) after sulfuration, described cover layer semi-finished product form cover layer.Preferably, described cover layer has network structure.
Be below the specific embodiment of the invention, elaborate technical solution of the present invention:
Embodiment 1
Refining glue.The mixing latex bonded fibre P that adds of rubber raw materials, makes cover layer semi-finished product, in like manner makes steel cord semi-finished product.
Rubber raw materials peace parts by weight are designated as:
Get natural rubber: 90 parts
Solution polymerized butadiene styrene rubber: 5 parts
5 parts of butadiene rubbers
Crosslinking agent 1 sulphur: 1.6 parts
1 part of crosslinking agent 2 dithiodimorpholine (DTDM)
The accelerant N tert-butyl group-2 one benzo crying of a child base sulfenic acids amine (NS): 1 part
3.5 parts of activating agent 1 oxidation dictions
Activating agent 2 stearic acid: 1.5 parts
Reinforcing agent 1 carbon black (N220): 20 parts
Reinforcing agent 2 carbon blacks (N234): 25 parts
Age resistor 1 (RD) 2,2,4-trimethyl-1,2 parts of 2-dihyaroquinoline condensates
2 parts of age resistor 2 (4010NA) N-isopropyl-N '-diphenyl-para-phenylene diamines
1.5 parts, age resistor 3 paraffin
Softening agent, virtue is through 3 parts of oil
Homogenizing agent, dark fragrant through resin compound (40MSF): 1.5 parts
The parts by weight of described latex bonded fibre P are 5 parts.
Calendering.Steel cord is carried out to double spreading with four-roll calender, and on two sides with calender stick, lower caldding layer semi-finished product.
Sulfuration.Under 150 DEG C × 30 points, vulcanize, repair, batch.Be 3 days whole process time.
Refining glue.By the mixing rubber raw materials latex bonded fibre P that adds, make cover layer semi-finished product according to the formula of embodiment 1, in like manner make steel cord semi-finished product.
Calendering.Steel cord is carried out to double spreading with four-roll calender, and on two sides with calender stick, lower caldding layer semi-finished product.
Sulfuration.Under 160 DEG C × 25 points, vulcanize, repair, batch.Be 3 days whole process time.
Refining glue.By the mixing rubber raw materials latex bonded fibre P that adds, make cover layer semi-finished product according to the formula of embodiment 1, in like manner make steel cord semi-finished product.
Calendering.Steel cord is carried out to double spreading with four-roll calender, and on two sides with calender stick, lower caldding layer semi-finished product.
Sulfuration.Under 140 DEG C × 35 points, vulcanize, repair, batch.Be 3 days whole process time.
Comparative example 1
Refining glue: by banbury by mixing rubber raw materials go out cover layer, anti-layer, the fabric core layer sizing of tearing.Calendering: upper and lower cover layer extrudes with calender compressing tablet.Fabric core casing play, every layer is sticked the sizing material semi-finished product of coupling by calender.Anti-tear layer sticks the sizing material semi-finished product of coupling by calender.Moulding: first spell the good multilayer fabric core of width casing play, then spread anti-tear layer at upper and lower faces respectively, upper and lower cover layer is spread in final step, batches by hold-down roller.Sulfuration: under the process conditions of 150 DEG C × 45 points, vulcanize, repair, batch.Described rubber raw materials is identical with embodiment 1.
The product data mean value contrast of embodiment 1～3 and comparative example 1 is as shown in table 1:
Table 1, properties of product contrast
Analysis from showing, improves rear defence and tears lamellar spacing at cover layer, and anti-tear performance rises to 18.2mpn from 15.6mpn, and has increased by one times service life, and effect reaches designing requirement
Above a kind of phenoxy acetic acid class methyl triethyl ammonium salt provided by the invention and preparation method thereof and a kind of herbicide are described in detail, having applied specific case herein sets forth principle of the present invention and embodiment, the explanation of above embodiment is just for helping to understand method of the present invention and core concept thereof, should be understood that, for those skilled in the art, under the premise without departing from the principles of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of the claims in the present invention.
Claims (6)
1. a preparation method for anti-tear conveyer belt, is characterized in that, comprising:
A) provide steel cord cloth casing play, described steel cord cloth casing play is to work out by steel cord the cloth shape casing play forming;
B) rubber raw materials is mixed with latex bonded fibre and carry out mixingly, make cover layer semi-finished product, described latex bonded fibre is latex bonded fibre p, the aramid fiber fibre that described latex bonded fibre p is long filament;
C) described steel cord cloth is passed through to calendering double spreading, then cover layer semi-finished product are rolled respectively on the steel cord cloth two sides after described rubberizing, form conveyer belt prefabricated component;
D) described conveyer belt prefabricated component vulcanized, repair, batch and obtain anti-tear conveyer belt.
2. preparation method according to claim 1, is characterized in that, steps d) in sulfuration be specially: described conveyer belt prefabricated component is heated to 25～35min at 140～160 DEG C.
3. preparation method according to claim 1, is characterized in that, described calendering is used four-roll calender.
4. preparation method according to claim 1, is characterized in that, the gap of tearing of described casing play is 0～2mm.
5. preparation method according to claim 1, is characterized in that, steps d) after sulfuration, described cover layer semi-finished product form cover layer.
6. preparation method according to claim 5, is characterized in that, described cover layer has network structure.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410073165.1A CN103862688A (en) | 2014-03-03 | 2014-03-03 | Method for preparing anti-tear conveying belt |
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| CN201410073165.1A CN103862688A (en) | 2014-03-03 | 2014-03-03 | Method for preparing anti-tear conveying belt |
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| CN103862688A true CN103862688A (en) | 2014-06-18 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107840075A (en) * | 2017-12-01 | 2018-03-27 | 澳津（天津）橡胶技术有限公司 | Conveyer belt heat cure snap joint glue, making and application method |
| CN112477216A (en) * | 2020-10-14 | 2021-03-12 | 上海永利带业股份有限公司 | Burr-free meat conveyer belt and manufacturing method thereof |
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| CN101028888A (en) * | 2007-03-23 | 2007-09-05 | 无锡市宝通带业有限公司 | High-temperature-resistant conveying belt |
| CN101177191A (en) * | 2006-11-10 | 2008-05-14 | 青岛橡六集团有限公司 | Metal net core conveyor belt |
| JP2010248427A (en) * | 2009-04-20 | 2010-11-04 | Bridgestone Corp | Rubber composition for conveyer belt, and conveyer belt |
| CN103159987A (en) * | 2013-02-02 | 2013-06-19 | 浙江凯欧传动带有限公司 | Wrapping cloth V belt and manufacture method thereof |
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2014
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| CN2711101Y (en) * | 2004-05-19 | 2005-07-20 | 叶未进 | Conveyer belt |
| CN101177191A (en) * | 2006-11-10 | 2008-05-14 | 青岛橡六集团有限公司 | Metal net core conveyor belt |
| CN101028888A (en) * | 2007-03-23 | 2007-09-05 | 无锡市宝通带业有限公司 | High-temperature-resistant conveying belt |
| JP2010248427A (en) * | 2009-04-20 | 2010-11-04 | Bridgestone Corp | Rubber composition for conveyer belt, and conveyer belt |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107840075A (en) * | 2017-12-01 | 2018-03-27 | 澳津（天津）橡胶技术有限公司 | Conveyer belt heat cure snap joint glue, making and application method |
| CN112477216A (en) * | 2020-10-14 | 2021-03-12 | 上海永利带业股份有限公司 | Burr-free meat conveyer belt and manufacturing method thereof |
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Application publication date: 20140618 |