CN104044290B - A kind of aramid fiber conveying belt finger-type joint and preparation method thereof - Google Patents
A kind of aramid fiber conveying belt finger-type joint and preparation method thereof Download PDFInfo
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Abstract
The present invention relates to a kind of aramid fiber conveying belt finger-type joint and preparation method thereof, preparation method comprises the following steps: the cutting of the stripping of rubber cover, the cleaning of residual gum, finger-type, brushing rubber cement, splicing finger-type, shaping rubberizing, fabric reinforcement layer, rubber cover, sample sulfuration, obtain the finger-type joint on aramid fiber conveying belt.Instant invention overcomes conveying band joint easily to occur extracting out in dynamic running process, alice, infiltration, seam such as to be come unglued at the various problems, the present invention reserves certain gap when splicing finger-type, ensure that rubberizing can fully be permeated between finger-type, add extraction power, improve uniform force, avoid the extraction caused because of unbalance stress, phenomenon of rupture, and the length ratio peelling off rubber cover refers to long increase 5cm, the overlap joint of connector glue and rubber cover is a slope, prevent the framework material infiltration phenomenon caused because seam is come unglued, substantially prolongs the joint life-span of aramid fiber conveying belt.
Description
Technical field
The present invention relates to a kind of aramid fiber conveying belt finger-type joint and preparation method thereof, be specifically related to aramid fiber conveying belt finger-type joint of the straight latitude programming structure of high, that thickness the is thin diameter of a kind of framework material filament strength and preparation method thereof, belong to rubber conveyor belt product field.
Background technology
The research work of China's aramid fiber conveying belt is started late, and mainly the production technology of aramid fiber rests in the minority such as Du Pont, Supreme Being people west transnational enterprise hand, expensive.Along with the progress of domestic science and technology and the raising of industrial level, domestic existing Ji Jia enterprise can carry out the production of aramid fiber, but small, as Yantai spandex, Henan god horse etc.Aramid fiber prices, market are to the increase in demand of high-performance conveyer belt in recent years, and make the batch application of aramid fiber in conveyer belt become possibility, existing Duo Jia conveyer belt enterprise carries out positive development to aramid fiber conveying belt at present.
In industrial experiment process, cogging problem is the maximum technological difficulties of of exposing.Aramid fiber canvas thickness is thin, and during finger-type fork-join, contact area is little, must refer to that length increases strength of joint by extending.The aramid fiber conveying belt of more than 2500S, referring to that length is general needs the sulfuration flat board of splicing more than 3 to carry out sulfuration at more than 3m, and joint quality is difficult to ensure.Joint easily occurs that in dynamic running process extraction, alice, infiltration, seam such as to be come unglued at the various problems, has had a strong impact on the service life of aramid fiber conveying belt.
Application number be 201310027979.7 patent of invention disclose a kind of diameter conveyer belt finger-type joint and preparation method thereof, strength of joint is improve by the preparation method of this invention, and make joint area equal with other part thickness of diameter conveyer belt, joint uniform force, softness, anti-fatigue performance are good, but, the diameter conveyer belt finger-type joint prepared by this invention still can not meet the needs in market, as the problem of cutting due to finger-type, easily cause the problem occurring alice, extraction in use procedure.
Summary of the invention
The object of the invention is to the joint life-span of improving aramid fiber conveying belt, especially for the problem occurring alice, extraction in conveyer belt use procedure.
Technical scheme of the present invention is as follows:
A preparation method for aramid fiber conveying belt finger-type joint, comprises the following steps:
The stripping of 1 rubber cover
Peel off the upper and lower rubber cover of aramid fiber conveying belt joint area; Preferably, the cut place of rubber cover is the slope of 45 degree, and polishes to slope.
The cleaning of 2 residual gum
Remove the remaining glue on framework material surface, by crude for the rubber polishing around framework material surface, groove, cleaning is clean, removes trickle particle, and carries out drying to skeleton surface.
The cutting of 3 finger-type
By the joint area justify align of aramid fiber conveying belt, longitudinally perpendicular bisector is drawn in surface at conveyer belt, identify every a finger beam unit to perpendicular bisector both sides with marking pen, cut along the line finished, follow during cutting and stay few principle more, to facilitate carrying out of splicing operation, redundance is removed; The half that the edge finger beam of described finger-type joint area is more than or equal to finger beam adds the width of 1cm, be that benchmark distributes to both sides with center line during the distribution of measuring and calculating finger beam, when the half that outermost finger beam is less than finger beam adds the width of 1cm, increase outermost finger beam, the amount of increase deducts on adjacent finger beam.
4 brushing rubber cements
With 120# gasoline cleaning joint surface, after gasoline dries, get final product brushing rubber cement, general painting rubber cement twice, be coated with rubber cement and want thin and even, do not leak white, non-foaming, last time glued membrane is tack-free again slightly when viscosity sense, then is coated with second time glue; Wherein, rubber cement is fully dissolved in 120# gasoline by high adhint sizing material, and cord rubber belt and 120# quality of gasoline ratio are 1:4.5-5, and preferably, cord rubber belt and 120# quality of gasoline ratio are 1:4.5.
In order to available iodine tungsten lamp hair-dryer of increasing work efficiency, to accelerate the volatilization of solvent in glue.
5 splicing finger-type
Alignd along perpendicular bisector by the joint area made, intersect and dock, the gap place of intersection reserves the space of about 2mm, uses adhesive tape to fill at the gap place of docking; Wherein, adhesive tape is rolled by high adhint sizing material to obtain in flakes, and thickness is 0.5mm-1mm, and the length that cutting is suitable as required and width use.
6 shaping rubberizings, fabric reinforcement layer, rubber cover
Use the thick adhesive tape of 1-2mm to cover joint upper and lower surface, after compacting, spread fabric reinforcement layer, fabric reinforcement layer and belt parallel longitudinal, last shaping upper and lower rubber cover, wherein fabric reinforcement layer is high-tenacity polyester eyelet fabric.
7 sample sulfurations
With the above and below of silicone oil paper protection joint area, the sample of forming is put into the sulfuration of vulcanizer Pressurized-heated; Wherein, the process conditions of sulfuration are: the belt body surface pressing 2.0Mpa of conveyer belt, curing temperature is 140-147 DEG C, and cure time is 20-40min, and the compression factor before and after conveyer belt belt body is 1:0.85-0.9, when the time stops, stop heating, allow its Temperature fall to pressure releasing die sinking again when less than 70 DEG C, to obtain final product, preferably, the compression factor before and after conveyer belt belt body is 1:0.9.
Further, the outside of edge finger beam should crop 0.5-1cm, and it is excessive to carry out fillet; Preferably, reduce 1cm, and it is excessive to carry out fillet.
Further, the length of rubber cover is peelled off in the present invention than referring to long many 5cm.
The finger-type joint obtained by preparation method of the present invention also belongs to protection scope of the present invention.In addition, during operation for the aramid fiber conveying belt of finger-type joint of the present invention, edge finger tip points to contrary with traffic direction.
The straight knitting device structure of diameter: main warp line linearly, flat arrangement, parallel linearly, be positioned at the upper and lower surface of main warp line and arranged vertically with main warp line, connect warp and to be contained between main warp line, to be bendingly up and down wound around parallel, by main warp line and weft knit integral.
The present invention compared with prior art has the following advantages:
(1) half that the edge finger beam of finger-type joint area is more than or equal to finger beam adds the width of 1cm, ensures the finger beam of edge, prevents the edge finger-type caused because of reasons such as belt deflections to tilt, tear phenomenon.
(2) outside of edge finger beam should crop 0.5-1cm, and carries out fillet excessively, adds the width of limit glue, prevents and causes framework material infiltration phenomenon because of the wearing and tearing of limit glue.
(3) the length ratio peelling off rubber cover refers to long increase 5cm, and the overlap joint of connector glue and rubber cover is a slope, prevents the framework material infiltration phenomenon caused because seam is come unglued.
(4) splice finger-type time reserve certain gap, ensure that rubberizing can fully be permeated between finger-type, add extraction power, improve uniform force, avoid cause because of unbalance stress extraction, phenomenon of rupture.
Accompanying drawing explanation
Fig. 1 is aramid fiber conveying belt Structure of cross section schematic diagram in prior art;
Fig. 2 is the structural representation peelling off rubber cover length; Fig. 2 A is structural representation in prior art, and Fig. 2 B is that the length peelling off rubber cover in the present invention grows many 5cm structural representation than referring to;
The structural representation of finger-type joint area edge when Fig. 3 is finger-type cutting; Fig. 3 A is structural representation of the prior art, and Fig. 3 B is the structural representation in the present invention;
Fig. 4 is that the present invention prepares in finger-type bond process schematic diagram of ruling;
Fig. 5 is that the present invention prepares fixed length schematic diagram in finger-type bond process;
Fig. 6 is that the present invention prepares in finger-type bond process and draws tooth schematic diagram;
Symbol description:
1. rubber cover, 2. fabric reinforcement layer, 3. rubberizing, 4. aramid fiber canvas.
Detailed description of the invention
Further describe the present invention below in conjunction with specific embodiment, advantage and disadvantage of the present invention will be more clear along with description.But embodiment is only exemplary, does not form any restriction to scope of the present invention.It will be understood by those skilled in the art that and can modify to the details of technical solution of the present invention and form or replace down without departing from the spirit and scope of the present invention, but these amendments and replacement all fall within the scope of protection of the present invention.
In prior art, aramid fiber conveying belt Structure of cross section schematic diagram as shown in Figure 1.
Embodiment 1 prepares a kind of method of aramid fiber conveying belt finger-type joint, comprises the following steps:
The stripping of 1 rubber cover
Peel off the upper and lower rubber cover of joint area, the cut place of rubber cover is the slope of 45 degree, and polishes to slope.
The cleaning of 2 residual gum
With cutter, glue more than framework material surface is pruned, with angle grinding machine by crude for the rubber polishing around framework material surface, groove, clean with hairbrush cleaning, blow away trickle particle with hair-dryer, and drying is carried out to skeleton surface.
The cutting of 3 finger-types
Two strap justify aligns of joint will be needed, longitudinally perpendicular bisector is drawn in surface at conveyer belt, identify every a finger beam unit to perpendicular bisector both sides with marking pen, cut along the line finished with cutter, follow during cutting and stay few principle more, to facilitate carrying out of splicing operation, redundance is removed.And ensure that the length peelling off rubber cover is than referring to long many 5cm, as shown in Figure 2, during finger-type cutting, the half that the edge finger beam of described finger-type joint area is more than or equal to finger beam adds the width of 1cm, be that benchmark distributes to both sides with center line during the distribution of measuring and calculating finger beam, when the half that outermost finger beam is less than finger beam adds the width of 1cm, increase outermost finger beam, the amount increased deducts on adjacent finger beam, as shown in Figure 3.The outside of edge finger beam should crop 1cm, and it is excessive to carry out fillet.
4 brushing rubber cements
With 120# gasoline cleaning joint surface, brushing rubber cement is got final product after gasoline dries, general gluing twice, gluing wants thin and even, does not leak white, non-foaming, last tack-free again slightly when viscosity sense all over glued membrane, be coated with second time glue again, in order to available iodine tungsten lamp hair-dryer of increasing work efficiency, to accelerate the volatilization of solvent in glue.
5 splicing finger-type
Alignd along perpendicular bisector at the two made, intersect and dock, the gap place of intersection reserves about 2mm space, uses adhesive tape to fill at the gap place of docking.
6 shaping rubberizings, fabric reinforcement layer, rubber cover
Use the rubberizing that 2mm is thick to cover joint upper and lower surface, spread fabric reinforcement layer after compacting, fabric reinforcement layer is longitudinally parallel longitudinal with belt, last shaping upper and lower rubber cover.
7 sample sulfurations
With the above and below of silicone oil paper protection joint, the sample of forming is put into the sulfuration of vulcanizer Pressurized-heated.Vulcanization process condition is: belt body surface pressing 2.0Mpa, and curing temperature is 145 DEG C, cure time 30min, and the compression factor before and after conveyer belt belt body is 1:0.9.After the time reaches, stop heating, allow its Temperature fall to pressure releasing die sinking again when less than 70 DEG C, be i.e. acquisition finger-type joint of the present invention.
Embodiment 2 pairs of 1600N/mmDPP aramid fiber canvas core conveyor belts carry out connector test, comprise the following steps:
(1) stripping of rubber cover
Peel off the upper and lower rubber cover of aramid fiber canvas apron joint area.
(2) cleaning of residual gum
Remove the remaining glue on framework material surface, by crude for the rubber polishing around framework material surface, groove, cleaning is clean, removes trickle particle, and carries out drying to skeleton surface.
(3) cutting of finger-type
1, rule
Making a straight line crossing with conveyer belt width two side is xx
,, length is x, then gets 1/2x place for O point, and O point is datum mark; Take O as fixed point, L is length (L>=2m), gets y, y at bandwidth dual side-edge
,, connect yy
,; Xy and yy
,vertically, x
,y
,with yy
,vertically, as shown in Figure 4.
2, fixed length
Length A determines according to belt intension, and 1600N/mmDPP is with A=2000mm.With yy
,for datum line, with y, y
,for datum mark, B is length, gets some b, a b
,, connect bb
,, B equals A and adds 50; With yy
,, be datum line, with y, y
,, be datum mark, C is length, gets some c, a c
,, connect cc
,.Bc, b
,c
,by 45
.cut into groove, as shown in Figure 5.
3, tooth is drawn
3.1 when conveyer belt runs with the direction of the V in Fig. 6, and the right-hand member in Fig. 6 is the drive end of finger-type joint, and the left end in Fig. 6 is the Partner of finger-type joint.
3.2 is length with A, and D is width, draws the profile of tooth of finger-type joint Partner according to the form on Fig. 6 right side, and two and half profiles of tooth of joint side must at the drive end of finger-type joint.
3.3 is length with A, and D is width, draws the profile of tooth of finger-type joint Partner according to the form on Fig. 6 left side, and the profile of tooth of Partner is without the profile of tooth of half.
3.4 profile of tooth width D are determined by belt intension: as belt intension≤1250N/mm, D=60mm, as belt intension >=1600N/mm, D=70mm.
3.5 when the bandwidth of conveyer belt is nonstandard, or have comparatively high tolerance time, adopt the facewidth of the middle profile of tooth ensureing joint, the method for width of half tooth strengthening or reduce both side edges solves.Specify in DIN22102:1991 standard, the finger beam of edge region must >0.5D.
4, tooth is cut
Cutter is utilized to carry out cutting tooth, according to the long A of belt intension rank determination cutting teeth; Continuous cutting, until all cut.After having cut a head, then cut another head.Shape after cutting respectively as shown in Figure 3.
(4) brushing rubber cement
With 120# gasoline cleaning joint surface, after gasoline dries, get final product brushing rubber cement, general painting rubber cement twice, be coated with rubber cement and want thin and even, do not leak white, non-foaming, last time glued membrane is tack-free again slightly when viscosity sense, then is coated with second time glue; Wherein, rubber cement is fully dissolved in 120# gasoline by high adhint sizing material, and cord rubber belt and 120# quality of gasoline ratio are 1:4.7.
In order to available iodine tungsten lamp hair-dryer of increasing work efficiency, to accelerate the volatilization of solvent in glue.
(5) finger-type is spliced
Alignd along perpendicular bisector by the joint area made, intersect and dock, the gap place of intersection reserves the space of about 2mm, uses adhesive tape to fill at the gap place of docking; Wherein, adhesive tape is rolled by high adhint sizing material to obtain in flakes, and thickness is 0.5mm-1mm, and the length that cutting is suitable as required and width use.
(6) shaping rubberizing, fabric reinforcement layer, rubber cover
Use the thick adhesive tape of 1-2mm to cover joint upper and lower surface, after compacting, spread fabric reinforcement layer, fabric reinforcement layer and belt parallel longitudinal, last shaping upper and lower rubber cover, wherein fabric reinforcement layer is high-tenacity polyester eyelet fabric.
(7) sample sulfuration
With the above and below of silicone oil paper protection joint area, the sample of forming is put into the sulfuration of vulcanizer Pressurized-heated; Wherein, the process conditions of sulfuration are: the belt body surface pressing 2.0Mpa of conveyer belt, curing temperature is 140-147 DEG C, cure time is 35min, compression factor before and after conveyer belt belt body is 1:0.9, when the time stops, stops heating, allow its Temperature fall to pressure releasing die sinking again when less than 70 DEG C, to obtain final product.
The finger-type joint testing aramid fiber conveying belt prepared by 1 couple of the present invention detects
Quality Supervision and Inspection Center is detected the present invention, detect data and result as shown in table 1: sample 1 be the finger-type joint (assay is the average of the finger-type joint vulcanized joint static state tensile strength extracted) prepared by preparation method of the present invention, sample 2 is finger-type joint prepared by the embodiment of the present invention 1, sample 3 is finger-type joint prepared by the embodiment of the present invention 2, and sample 4 is be finger-type joint prepared by the preparation method in 201310027979.7 by application number.
Table 1
Can be found by table 1, the static tensile strength of the vulcanized joint of the finger-type joint of aramid fiber conveying belt of the present invention is apparently higher than the static tensile strength of finger-type joint in prior art.
Claims (8)
1. a preparation method for aramid fiber conveying belt finger-type joint, is characterized in that, comprises the following steps:
(1) stripping of rubber cover
Peel off the upper and lower rubber cover of aramid fiber conveying belt joint area;
(2) cleaning of residual gum
(3) cutting of finger-type
By the joint area justify align of aramid fiber conveying belt, longitudinally draw perpendicular bisector in surface at conveyer belt, identify every a finger beam unit to perpendicular bisector both sides with marking pen, cut along the line finished, follow during cutting and stay few principle more, redundance is removed; The half that the edge finger beam of finger-type joint area is more than or equal to finger beam adds the width of 1cm, be that benchmark distributes to both sides with center line during the distribution of measuring and calculating finger beam, when the half that outermost finger beam is less than finger beam adds the width of 1cm, increase outermost finger beam, the amount of increase deducts on adjacent finger beam;
(4) brushing rubber cement
With 120# gasoline cleaning joint surface, after gasoline dries, get final product brushing rubber cement, be coated with rubber cement twice, be coated with rubber cement and want thin and even, do not leak white, non-foaming, last tack-free again slightly when viscosity sense all over glued membrane, then be coated with second time glue; Wherein, rubber cement is fully dissolved in 120# gasoline by high adhint sizing material, and cord rubber belt and 120# quality of gasoline ratio are 1:4.5-5;
(5) finger-type is spliced
Alignd along perpendicular bisector by the joint area made, intersect and dock, the gap place of intersection reserves the space of about 2mm, uses adhesive tape to fill at the gap place of docking; Wherein, adhesive tape is rolled by high adhint sizing material to obtain in flakes, and thickness is 0.5mm-1mm;
(6) shaping rubberizing, fabric reinforcement layer, rubber cover
Use the thick adhesive tape of 1-2mm to cover joint upper and lower surface, after compacting, spread fabric reinforcement layer, fabric reinforcement layer and belt parallel longitudinal, last shaping upper and lower rubber cover, wherein fabric reinforcement layer is high-tenacity polyester eyelet fabric;
(7) sample sulfuration
With the above and below of silicone oil paper protection joint area, the sample of forming is put into the sulfuration of vulcanizer Pressurized-heated; Wherein, the process conditions of sulfuration are: the belt body surface pressing 2.0Mpa of conveyer belt, curing temperature is 140-147 DEG C, cure time is 20-40min, compression factor before and after conveyer belt belt body is 1:0.85-0.9, when the time stops, stops heating, allow its Temperature fall to pressure releasing die sinking again when less than 70 DEG C, to obtain final product.
2. preparation method according to claim 1, is characterized in that, in step (1), the cut place of rubber cover is the slope of 45 degree, and polishes to slope.
3. preparation method according to claim 1, is characterized in that, peels off the length of rubber cover than referring to long many 5cm in step (1).
4. preparation method according to claim 1, is characterized in that, in step (3) during finger-type cutting, the outside of described finger-type joint area should crop 0.5-1cm, and carries out round-corner transition.
5. preparation method according to claim 4, is characterized in that, in step (3) during finger-type cutting, the outside of described finger-type joint area should crop 1cm, and carries out round-corner transition.
6. preparation method according to claim 1, is characterized in that, in step (4) during brushing rubber cement, cord rubber belt and 120# quality of gasoline ratio are 1:4.5.
7. preparation method according to claim 1, is characterized in that, in step (7) during sample sulfuration, the sample of forming is put into the sulfuration of vulcanizer Pressurized-heated, the compression factor wherein before and after conveyer belt belt body is 1:0.9.
8. the finger-type joint that the preparation method as described in any one of claim 1-7 obtains.
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105151644B (en) * | 2015-08-25 | 2017-09-05 | 无锡宝通科技股份有限公司 | Preparation method of high-strength single-layer aramid fiber conveying belt joint structure |
| CN105645021A (en) * | 2016-03-11 | 2016-06-08 | 兖州煤业股份有限公司 | Belt conveyor and conveying belt thereof |
| CN105692052A (en) * | 2016-03-11 | 2016-06-22 | 兖州煤业股份有限公司 | Aramid fiber conveyer belt and lapping method thereof |
| CN106808721B (en) * | 2017-03-31 | 2022-09-23 | 兖矿能源集团股份有限公司 | Lapping structure and lapping method for aramid fiber conveying belt and steel wire rope core conveying belt |
| 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 |
| CN108169253A (en) * | 2018-02-12 | 2018-06-15 | 无锡百年通工业输送有限公司 | A kind of method that X-ray detection aramid fiber conveying belt finger-type connector is twitched |
| CN109048344B (en) * | 2018-08-06 | 2020-05-12 | 盐城捷纳福传动科技有限公司 | Conveyer belt polishing welding recovery unit |
| CN109501334A (en) * | 2018-12-11 | 2019-03-22 | 河南天工科技股份有限公司 | A kind of high intensity aramid fiber conveying belt joint process |
| EP3667118B1 (en) * | 2018-12-14 | 2020-12-30 | Arnold Jäger Holding GmbH | Belt as endless traction mechanism and method for manufacturing such a belt |
| CN114104602A (en) * | 2021-12-23 | 2022-03-01 | 无锡百年通工业输送有限公司 | Fabric core conveyer belt with self-correcting function |
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| CN101205961A (en) * | 2007-11-29 | 2008-06-25 | 兖矿鲁南化肥厂 | Method for gluing conveyer belt joint |
| CN103072786B (en) * | 2013-01-25 | 2015-09-09 | 兖矿集团有限公司 | A kind of preparation method of straight conveyor belt finger-model connector |
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