CN114889108A - Ethylene Propylene Diene Monomer (EPDM) environment-friendly tube and manufacturing method thereof - Google Patents
Ethylene Propylene Diene Monomer (EPDM) environment-friendly tube and manufacturing method thereof Download PDFInfo
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- CN114889108A CN114889108A CN202210376919.5A CN202210376919A CN114889108A CN 114889108 A CN114889108 A CN 114889108A CN 202210376919 A CN202210376919 A CN 202210376919A CN 114889108 A CN114889108 A CN 114889108A
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- 229920002943 EPDM rubber Polymers 0.000 title claims abstract description 36
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 10
- 229920001971 elastomer Polymers 0.000 claims abstract description 315
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 22
- 238000003860 storage Methods 0.000 claims abstract description 15
- 230000007613 environmental effect Effects 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims description 16
- 239000002994 raw material Substances 0.000 claims description 16
- 238000001125 extrusion Methods 0.000 claims description 13
- 238000009940 knitting Methods 0.000 claims description 12
- -1 aromatic imide Chemical class 0.000 claims description 4
- 238000004073 vulcanization Methods 0.000 claims description 4
- 238000004026 adhesive bonding Methods 0.000 claims description 3
- 229920006231 aramid fiber Polymers 0.000 claims description 3
- 238000009945 crocheting Methods 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 10
- 239000002699 waste material Substances 0.000 abstract description 5
- 230000003139 buffering effect Effects 0.000 abstract description 4
- 238000005452 bending Methods 0.000 description 46
- 230000000694 effects Effects 0.000 description 18
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 238000013459 approach Methods 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 150000001993 dienes Chemical class 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229920001897 terpolymer Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
- B29C53/56—Winding and joining, e.g. winding spirally
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
- B29C53/80—Component parts, details or accessories; Auxiliary operations
- B29C53/8008—Component parts, details or accessories; Auxiliary operations specially adapted for winding and joining
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The invention belongs to the technical field of rubber pipes, and particularly relates to an Ethylene Propylene Diene Monomer (EPDM) rubber ring storage pipe and a manufacturing method thereof, wherein the EPDM rubber ring storage pipe comprises an inner rubber pipe, a reinforcing layer and an outer rubber pipe; the reinforcing layer is positioned between the inner rubber tube and the outer rubber tube and comprises a rope sleeve and a braided wire; the axial direction of the rope sling is parallel to the radial direction of the inner rubber tube, and the rope sling is in sliding contact with the inner wall of the outer rubber tube; the braided wire is wound on the outer wall of the inner rubber tube; according to the rubber tube, the braided wire is arranged in a corrugated shape, so that the braided wire is prevented from being broken under external impact due to excessive tightening, when the bent part of the outer rubber tube is impacted by external force, the rope sleeve plays a buffering role, the impact force borne by the braided wire is reduced, the braided wire at the bent part is protected, the braided wire can be bound and extruded, the rope sleeve plays a role in bearing load pressure, the service life of the rubber tube is prolonged, rubber waste generated by loss of the rubber tube is reduced, and the rubber tube conforms to the national environmental protection concept.
Description
Technical Field
The invention belongs to the technical field of rubber tubes, and particularly relates to an Ethylene Propylene Diene Monomer (EPDM) rubber ring storage tube and a manufacturing method thereof.
Background
The rubber tube is a pipeline for conveying gas or liquid, the prepared raw rubber is plasticized by a plasticizing machine to ensure that the raw rubber obtains certain plasticity, the plasticized rubber is kneaded by a mixing roll to improve the performance of the rubber, the kneaded rubber is extruded out of a tube blank by an extruder, and finally the extruded tube blank is vulcanized and molded, Ethylene Propylene Diene Monomer (EPDM) has excellent oxidation resistance, ozone resistance and corrosion resistance among various rubber materials, the commercial production is started from 1963, the worldwide consumption is 80 million tons each year, the EPDM is a terpolymer of ethylene, propylene and non-conjugated diene, the EPDM has excellent vulcanization performance, can absorb a large amount of filler and oil and has little influence on the characteristics, and the rubber compound with low cost can be prepared.
If a chinese patent with application number CN201921968926.4 discloses a corrosion-resistant epdm rubber tube, the technical scheme is that a rubber sleeve is bonded on the outer surface of a tube body, and the rubber sleeve limits a connecting sleeve, so that the connecting sleeve is arranged on the tube body, an iron wire is bound on a connecting hole of a connecting buckle, and then the iron wire is fixed on the inner wall of equipment, so that the rubber sleeve is arranged on the inner wall of the equipment, the tube body is prevented from being damaged due to direct contact between the iron wire and the outer surface of the tube body, and normal transportation of water vapor by the tube body is ensured; but this technical scheme is difficult to avoid the bending angle of rubber tube too big, and the braided wire of rubber tube bending department is in excessively tightening state and the braided wire receives too big tension, and rubber tube bending department receives outside collision's impact force this moment, just can make the braided wire fracture that the rubber tube bending department tightened to make the enhancement layer of this department damage, cause the life of rubber tube to reduce, influence the normal use of rubber tube, and then cause this technical scheme's limitation.
In view of the above, in order to overcome the above technical problems, the present invention provides an ethylene propylene diene monomer (epdm) ring storage battery and a manufacturing method thereof, which solve the above technical problems.
Disclosure of Invention
In order to make up for the defects of the prior art, the invention provides an Ethylene Propylene Diene Monomer (EPDM) rubber ring storage tube, the braided wire is arranged in a corrugated shape, so that the braided wire is prevented from being broken under external impact due to over-tightening, when the bent part of an outer rubber tube is impacted by external force, a rope sleeve not only has a buffer effect, but also reduces the impact force borne by the braided wire, protects the braided wire at the bent part, and can bind and extrude the braided wire, so that the rope sleeve has the effect of bearing load pressure, the service life of a rubber tube is prolonged, rubber waste generated by the loss of the rubber tube is reduced, and the EPDM rubber ring storage tube conforms to the national environmental protection idea.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to an Ethylene Propylene Diene Monomer (EPDM) rubber ring storage tube, which comprises an inner rubber tube, a reinforcing layer and an outer rubber tube; the reinforcing layer is positioned between the inner rubber tube and the outer rubber tube and comprises a rope sleeve and a braided wire; the axial direction of the rope sling is parallel to the radial direction of the inner rubber tube, and the rope sling is in sliding contact with the inner wall of the outer rubber tube; the braided wire is wound on the outer wall of the inner rubber tube, the length direction of the braided wire is parallel to the axial direction of the inner rubber tube, the braided wire is corrugated, the curved edge on one side of the braided wire is fixedly connected with the outer wall of the inner rubber tube, and the curved edge on the other side of the braided wire is in sliding contact with the inner wall of the rope sleeve;
in the prior art, the reinforcing layer in the rubber tube is a main stressed part and has the function of bearing load pressure, and as the rubber tube is bent in the use process, the braided wire parallel to the inner rubber tube in the rubber tube reinforcing layer can be stretched and tightened, when the bending angle of the rubber tube is too large, the braided wire at the bent part of the rubber tube is in an excessively tightened state and the tensile force borne by the braided wire is too large, and the bent part of the rubber tube is impacted by external collision, so that the braided wire stretched at the bent part of the rubber tube can be broken, the reinforcing layer at the bent part is damaged, the service life of the rubber tube is shortened, and the normal use of the rubber tube is influenced;
when the rubber pipe is not bent, the braided wire is bound by the rope sleeve, the rope sleeve has the function of bearing load pressure, when a user bends the rubber pipe, the outer diameter of the inner rubber pipe is bent and stretched, so that the fixed connection points of two adjacent braided wires and the outer wall of the inner rubber pipe are far away, the bent braided wire between two adjacent fixed points is pulled to stretch and be close to the outer wall of the inner rubber pipe, along with the continuous bending of the rubber pipe by the user, the braided wire continuously stretches out of the rope sleeve and is close to the outer wall of the inner rubber pipe, when the braided wire does not reach the maximum bending angle, the stretched part of the braided wire is tightly attached to the outer wall of the inner rubber pipe, the unstretched part of the braided wire is still bound under the action of the rope sleeve, at the moment, the rope sleeve still plays the role of bearing the load pressure, and until the bending angle of the rubber pipe is the maximum, the bent braided wire between two adjacent fixed points completely stretches out of the rope sleeve and is tightly attached to the outer wall of the inner rubber pipe, the braided wire has the function of bearing load pressure, and the rope sling is positioned between the braided wire and the outer rubber tube, so that the rope sling not only can play the function of bearing load pressure, but also can buffer external force, thereby playing a role in protecting the braided wire, the braided wire at the bending part of the rubber tube is not in a tight state, when the outer rubber tube is acted by external force, the external force is transmitted to the rope sling from the outer rubber tube, the rope sling is extruded by external impact and deformed and then transmitted to the braided wire, the condition that the braided wire is broken due to the external force is reduced, when the bent rubber tube is recovered, the rope sling is positioned between the braided wire and the inner wall of the outer rubber tube, the braided wire is positioned below the rope sling and is tightly attached to the outer wall of the inner rubber tube under the extrusion of the rope sling, and the extruded braided wire plays a role in supporting the inner wall of the rope sling at the moment; so that the rope sling has the function of bearing load pressure;
according to the rubber tube, the braided wire is arranged in a corrugated shape, so that the braided wire is prevented from being broken under external impact due to excessive tightening, when the bent part of the outer rubber tube is impacted by external force, the rope sleeve plays a buffering role, the impact force borne by the braided wire is reduced, the braided wire at the bent part is protected, the braided wire can be bound and extruded, the rope sleeve plays a role in bearing load pressure, the service life of the rubber tube is prolonged, rubber waste generated by loss of the rubber tube is reduced, and the rubber tube conforms to the national environmental protection concept.
Preferably, the rope sling is in a conical cylinder shape, and one end with a larger diameter in the two ends of the rope sling faces the inner rubber pipe; the rope sleeve is made of aromatic imide fibers; the braided wire is made of aramid fibers; when the rubber pipe bending machine works, when the rubber pipe is bent, the braided wire in the rope sleeve extends out of the lower end of the rope sleeve, the rope sleeve is in a frustum shape, so that the braided wire can extend from the lower end of the rope sleeve more conveniently, friction between the rope sleeve and the braided wire is reduced, abrasion between the rope sleeve and the braided wire is reduced, when the bent outer rubber pipe is impacted, the outer rubber pipe is impacted to extrude the rope sleeve, so that the smaller end of the rope sleeve is compressed to be contracted into the rope sleeve, and the rope sleeve is in a cone shape and can support the outer rubber pipe, so that the rope sleeve has the function of bearing external load pressure; according to the invention, the rope sleeve is arranged in a conical cylinder shape, so that the inner wall of the rope sleeve is contacted with the braided wire under the extrusion of the outer rubber tube, the extrusion force of the rope sleeve on the braided wire is dispersed, the damage of the rope sleeve on the braided wire is reduced, the rope sleeve plays a role in protecting the braided wire, the service life of the reinforcing layer is prolonged, and when the bent rubber tube is recovered, the stretched braided wire is contracted into the rope sleeve, so that the rope sleeve can store the braided wire, and when the rope sleeve bears external pressure, the braided wire in the rope sleeve is extruded by the rope sleeve and is tightly attached to the inner wall of the outer rubber tube, so that the braided wire extruded by the rope sleeve has the function of bearing external load pressure, and the actual application effect of the invention is improved.
Preferably, a conical groove is formed in the inner wall of the outer rubber tube; the rope sleeve is connected in the tapered groove in a sliding manner; when the rubber pipe is bent, the braided wire is withdrawn from the lower end of the rope sleeve, the outer rubber pipe is bent outwards at the moment, the tapered groove in the inner wall of the outer rubber pipe is extruded, two side walls of the tapered groove extrude the rope sleeve and are close to each other, when the bending degree of the rubber pipe is fixed, the outward bending angle of the outer wall of the inner rubber pipe is larger than the outward bending degree of the inner wall of the outer rubber pipe, so that the stretching speed of the bent braided wire from the rope sleeve is higher than the mutual approaching speed of the two side walls of the tapered groove, the two side walls close to each other are prevented from clamping the braided wire, the stretching effect of the braided wire is improved, and when the bent braided wire completely stretches out of the rope sleeve, the two side walls of the tapered groove are extruded and attached tightly; for the position where the outer rubber tube bends inwards, the inner wall of the outer rubber tube at the position bends outwards, so that the tapered groove is opened, the bending angle of the outer rubber tube at the position is increased, the bending deformation of the inner wall at the position is reduced, and the using effect of the tapered groove is improved; according to the invention, through the arrangement of the tapered groove, on one hand, in the process of outward bending of the outer rubber pipe, two side walls of the tapered groove are close to each other, so that the outward bending angle of the outer rubber pipe is increased, on the other hand, the tapered groove and the rope sling are more attached, so that the outer rubber pipe and the reinforcing layer are tightly connected, the rope sling directly supports the outer rubber pipe, the bearing capacity of the rope sling on external load is enhanced, the influence of external force on the rope sling and the braided wire is reduced, and the actual application effect of the invention is improved.
Preferably, the outer wall of the inner rubber tube is provided with a hemispherical groove; the curved edge of the braided wire is fixedly connected in the semi-spherical groove; when the rope is in work, the inner rubber tube is bent outwards, so that the hemispherical groove is opened, the braided wires on two sides of the fixed point are far away from each other along with the opening of the hemispherical groove, the elongation of the braided wires bent in the rope sleeve is improved, the tightness of the braided wires is further reduced, and the bending angle of the inner rubber tube is increased due to the arrangement of the hemispherical groove, so that the bending deformation of the outer wall of the inner rubber tube is reduced, the material fatigue of the bent part of the inner rubber tube is reduced, the service life of the inner rubber tube is prolonged, and the use effect of the rope is further improved; for the inward bending position of the inner rubber pipe, the inner rubber pipe is extruded, so that the inward bending angle of the inner rubber pipe is increased, the inner rubber pipe is convenient to bend, and the practical application effect of the hemispherical groove is improved.
Preferably, the rope sleeve is spirally distributed on the outer wall of the inner rubber pipe; when the rope sleeve is in work, the rope sleeves are spirally wound on the outer wall of the inner rubber pipe, so that the two adjacent rope sleeves are distributed in a staggered manner, the number of braided wires wound on the outer wall of the inner rubber pipe can be increased, the distance between the braided wires of the two adjacent parallel inner rubber pipes is reduced, the density of the braided wires is increased, the strength of the enhancement layer is improved, and the practicability of the rope sleeve is further improved.
A method for manufacturing an ethylene propylene diene monomer rubber ring storage tube is suitable for the ethylene propylene diene monomer rubber ring storage tube, and comprises the following steps:
s1: dividing an ethylene propylene diene monomer raw material into two parts, wherein one part is used as an inner rubber tube raw material, the other part is used as an outer rubber tube raw material, the two parts are respectively subjected to plastication and mulling, and then the plastified and mullized inner rubber tube raw material is extruded out of an inner rubber tube through a screw extruder;
s2: conveying the inner rubber tube preliminarily extruded by the extruder to a thread-hooking knitting machine, and tightening a grooving device at the inlet of the knitting machine to form a semi-spherical groove on the outer wall of the inner rubber tube; the grooving device is retracted, and the braided wire end surrounding the inner wall of the crochet knitting machine is fixedly connected with the hemispherical groove on the outer wall of the inner rubber tube; with the continuous extension of the inner rubber tube, hemispherical grooves with the same interval are formed on the surface of the inner rubber tube;
s3: in the process that the inner rubber tube extends, the clamp spirally surrounds the inner wall of the crocheting knitting machine to extend out, so that the clamp clamps the braided wire between two adjacent hemispherical grooves and drives the braided wire at the clamping position to rise, and at the moment, the fixer pushes the braided wire above the hemispherical grooves into the hemispherical grooves and carries out hot bonding;
s4: when the fixer fixes the braided wire, the pusher above the clamping device pushes the rope sleeve to tightly sleeve the braided wire clamped by the clamping device, and when the braided inner rubber tube extends out, the V-shaped rubber sleeve is sleeved at the rope sleeve, so that the V-shaped opening of the V-shaped rubber sleeve wraps the rope sleeve; thereby avoiding the raw material of the outer rubber tube entering between the braided wire and the inner rubber tube when the outer rubber tube is extruded;
s5: conveying the wrapped inner rubber tube to a second rubber extruder for gluing, wrapping the inner rubber tube and a reinforcing layer with a V-shaped rubber sleeve in the outer rubber tube, conveying the rubber tube subjected to extrusion molding to a vulcanizing tank for vulcanizing, and obtaining the required rubber tube after the belt vulcanization is finished.
The invention has the following beneficial effects:
1. according to the rubber tube, the braided wire is arranged in a corrugated shape, so that the braided wire is prevented from being broken under external impact due to excessive tightening, when the bent part of the outer rubber tube is impacted by external force, the rope sleeve plays a buffering role, the impact force borne by the braided wire is reduced, the braided wire at the bent part is protected, the braided wire can be bound and extruded, the rope sleeve plays a role in bearing load pressure, the service life of the rubber tube is prolonged, rubber waste generated by loss of the rubber tube is reduced, and the rubber tube conforms to the national environmental protection concept.
2. According to the invention, the rope sleeve is arranged in a conical cylinder shape, so that the inner wall of the rope sleeve is contacted with the braided wire under the extrusion of the outer rubber tube, the extrusion force of the rope sleeve on the braided wire is dispersed, the damage of the rope sleeve on the braided wire is reduced, the rope sleeve plays a role in protecting the braided wire, the service life of the reinforcing layer is prolonged, and when the bent rubber tube is recovered, the stretched braided wire is contracted into the rope sleeve, so that the rope sleeve can store the braided wire, and when the rope sleeve bears external pressure, the braided wire in the rope sleeve is extruded by the rope sleeve and is tightly attached to the inner wall of the outer rubber tube, so that the braided wire extruded by the rope sleeve has the function of bearing external load pressure, and the actual application effect of the invention is improved.
3. According to the invention, through the arrangement of the tapered groove, on one hand, in the process of outward bending of the outer rubber pipe, two side walls of the tapered groove are close to each other, so that the outward bending angle of the outer rubber pipe is increased, on the other hand, the tapered groove and the rope sling are more attached, so that the outer rubber pipe and the reinforcing layer are tightly connected, the rope sling directly supports the outer rubber pipe, the bearing capacity of the rope sling on external load is enhanced, the influence of external force on the rope sling and the braided wire is reduced, and the actual application effect of the invention is improved.
Drawings
The invention is further described with reference to the following figures and embodiments.
FIG. 1 is a flow chart of a method of manufacture of the present invention;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is a cross-sectional view taken at A-A of FIG. 2;
in the figure: 1. an inner rubber tube; 11. a hemispherical groove; 2. an enhancement layer; 21. rope sleeves; 22. weaving wires; 3. an outer rubber tube; 31. and (4) a tapered groove.
Detailed Description
The present invention will be further described with reference to the following detailed description so that the technical means, the creation features, the achievement purposes and the effects of the present invention can be easily understood.
As shown in fig. 1 to 3, the ethylene propylene diene monomer rubber ring storage pipe of the present invention comprises an inner rubber pipe 1, a reinforcing layer 2 and an outer rubber pipe 3; the enhancement layer 2 is positioned between the inner rubber tube 1 and the outer rubber tube 3, and the enhancement layer 2 comprises a rope sleeve 21 and a braided wire 22; the axial direction of the rope sling 21 is parallel to the radial direction of the inner rubber tube 1, and the rope sling 21 is in sliding contact with the inner wall of the outer rubber tube 3; the braided wire 22 surrounds the outer wall of the inner rubber tube 1, the length direction of the braided wire 22 is parallel to the axial direction of the inner rubber tube 1, the braided wire 22 is corrugated, a curved edge on one side of the braided wire 22 is fixedly connected with the outer wall of the inner rubber tube 1, and a curved edge on the other side of the braided wire 22 is in sliding contact with the inner wall of the rope sleeve 21;
in the prior art, the reinforcing layer 2 in the rubber tube is a main stressed part and has the function of bearing load pressure, and as the rubber tube is bent in the use process, the rubber tube is bent in an indispensable manner, so that the braided wire 22 in the rubber tube reinforcing layer 2, which is parallel to the inner rubber tube 1, can be stretched and tightened, when the bending angle of the rubber tube is too large, the braided wire 22 at the bent part of the rubber tube is in an excessively tightened state and the braided wire 22 is subjected to excessively large tension, and the bent part of the rubber tube is subjected to impact force of external collision, so that the braided wire 22 at the bent part of the rubber tube can be broken, the reinforcing layer 2 at the bent part is damaged, the service life of the rubber tube is further shortened, and the normal use of the rubber tube is influenced;
when the rubber tube is not bent, the rope sleeve 21 binds the braided wire 22, and the rope sleeve 21 has the function of bearing load pressure, when a user bends the rubber tube, the outer diameter of the inner rubber tube 1 is bent and stretched, so that the fixed connection points of the two adjacent braided wires 22 and the outer wall of the inner rubber tube 1 are far away, the braided wire 22 bent between the two adjacent fixed points is pulled and approaches the outer wall of the inner rubber tube 1, the braided wire 22 continuously extends out of the rope sleeve 21 and approaches the outer wall of the inner rubber tube 1 along with the continuous bending of the rubber tube by the user, when the braided wire 22 does not reach the maximum bending angle, the extending part of the braided wire 22 is tightly attached to the outer wall of the inner rubber tube 1, the unextended part of the braided wire 22 is still bound under the action of the rope sleeve 21, and the rope sleeve 21 still plays the function of bearing load pressure until the bending angle of the rubber tube is maximum, the braided wire 22 which is bent between two adjacent fixed points completely extends out of the rope sleeve 21 and is tightly attached to the outer wall of the inner rubber tube 1, at the moment, the braided wire 22 has the function of bearing load pressure, and the rope sleeve 21 is positioned between the braided wire 22 and the outer rubber tube 3, so that the rope sleeve 21 not only can play the role of bearing load pressure, but also can buffer external force, thereby playing the role of protecting the braided wire 22, at the moment, the braided wire 22 at the bending part of the rubber tube is not in a tightening state, when the outer rubber tube 3 is acted by the external force, the external force is transmitted to the rope sleeve 21 from the outer rubber tube 3, the rope sleeve 21 is deformed by external impact extrusion and then is transmitted to the braided wire 22, the condition that the braided wire 22 is broken due to the external force is reduced, when the bent rubber tube is recovered, at the moment, the rope sleeve 21 is positioned between the braided wire 22 and the inner wall of the outer rubber tube 3, the braided wire 22 is positioned below the rope sleeve 21 and is tightly attached to the outer wall of the inner rubber tube 1 by the extrusion of the rope sleeve 21, the extruded braided wire 22 plays a supporting role on the inner wall of the rope sling 21 at the moment, so that the rope sling 21 has the function of bearing load pressure;
according to the rubber tube, the braided wire 22 is arranged in a corrugated shape, so that the braided wire 22 is prevented from being broken under external impact due to over-tightening, when the bending part of the outer rubber tube 3 is impacted by external force, the rope sleeve 21 plays a role in buffering, the impact force borne by the braided wire 22 is reduced, the braided wire 22 at the bending part is protected, and the braided wire 22 can be bound and extruded, so that the rope sleeve 21 plays a role in bearing load pressure, the service life of the rubber tube is prolonged, rubber waste generated by rubber tube loss is reduced, and the rubber tube meets the national environmental protection concept.
In one embodiment of the present invention, the rope sling 21 is in a conical tube shape, and one end of the rope sling 21 with a larger diameter faces the inner rubber tube 1; the rope sling 21 is made of aromatic imide fiber; the braided wire 22 is made of aramid fiber; when the rubber pipe bending machine works, when the rubber pipe is bent, the braided wire 22 in the rope sleeve 21 extends out of the lower end of the rope sleeve 21, the rope sleeve 21 is in a frustum shape, so that the braided wire 22 can extend from the lower end of the rope sleeve 21 more conveniently, the friction between the rope sleeve 21 and the braided wire 22 is reduced, the abrasion between the rope sleeve 21 and the braided wire 22 is reduced, when the bent outer rubber pipe 3 is impacted, the outer rubber pipe 3 is impacted to extrude the rope sleeve 21, so that the smaller end of the rope sleeve 21 is compressed to be contracted into the rope sleeve 21, and the rope sleeve 21 is in a cone shape, so that the rope sleeve 21 can support the outer rubber pipe 3, and the rope sleeve 21 has the function of bearing external load pressure; according to the invention, the rope sleeve 21 is designed into a cone shape, so that the inner wall of the rope sleeve 21 is contacted with the braided wire 22 under the extrusion of the outer rubber tube 3, the extrusion force of the rope sleeve 21 on the braided wire 22 is dispersed, the damage of the rope sleeve 21 on the braided wire 22 is reduced, the rope sleeve 21 plays a role in protecting the braided wire 22, the service life of the reinforcing layer 2 is prolonged, and when the bent rubber tube is recovered, the stretched braided wire 22 is contracted into the rope sleeve 21, so that the rope sleeve 21 can store the braided wire 22, and when the rope sleeve 21 bears external pressure, the braided wire 22 in the rope sleeve 21 is pressed by the rope sleeve 21 to be tightly attached to the inner wall of the outer rubber tube 3, so that the braided wire 22 pressed by the rope sleeve 21 has the function of bearing external load pressure, and the actual application effect of the invention is improved.
As an embodiment of the invention, the inner wall of the outer rubber hose 3 is provided with a tapered groove 31; the rope sling 21 is connected in the tapered groove 31 in a sliding way; when the rubber hose is in work, when the outer rubber hose 3 is bent, the braided wire 22 is withdrawn from the lower end of the rope sleeve 21, the outer rubber hose 3 is bent outwards at the moment, the tapered groove 31 on the inner wall of the outer rubber hose 3 is extruded, two side walls of the tapered groove 31 extrude the rope sleeve 21 and approach each other, when the bending degree of the rubber hose is fixed, the outward bending angle of the outer wall of the inner rubber hose 1 is larger than the outward bending degree of the inner wall of the outer rubber hose 3, so that the stretching speed of the bent braided wire 22 from the rope sleeve 21 is higher than the mutual approaching speed of the two side walls of the tapered groove 31, the two side walls close to each other are prevented from clamping the braided wire 22, the stretching effect of the braided wire 22 is improved, and when the bent braided wire 22 completely stretches out from the rope sleeve 21, the two side walls of the tapered groove 31 are extruded and attached tightly; for the position where the outer rubber tube 3 is bent inwards, the inner wall of the outer rubber tube 3 is bent outwards, so that the tapered groove 31 is opened, the bending angle of the outer rubber tube 3 is increased, the bending deformation of the inner wall is reduced, and the using effect of the tapered groove 31 is improved; according to the invention, through the arrangement of the tapered groove 31, on one hand, in the process of outward bending of the outer rubber tube 3, two side walls of the tapered groove 31 are close to each other, so that the outward bending angle of the outer rubber tube 3 is increased, on the other hand, the tapered groove 31 is more attached to the rope sling 21, so that the outer rubber tube 3 is tightly connected with the reinforcing layer 2, the rope sling 21 plays a direct supporting role on the outer rubber tube 3, the bearing capacity of the rope sling 21 on external load is enhanced, the influence of external force on the rope sling 21 and the braided wire 22 is reduced, and the actual application effect of the invention is improved.
As an embodiment of the invention, the outer wall of the inner rubber tube 1 is provided with a semi-spherical groove 11; the curved edge of the braided wire 22 is fixedly connected in the semi-spherical groove 11; when the device works, the inner rubber tube 1 bends outwards, so that the semi-spherical groove 11 is opened, the braided wires 22 on two sides of the fixed point are far away from each other along with the opening of the semi-spherical groove 11, the elongation of the braided wires 22 bent in the rope sleeve 21 is improved, the tightness of the braided wires 22 is further reduced, and the arrangement of the semi-spherical groove 11 increases the bending angle of the inner rubber tube 1, so that the bending deformation of the outer wall of the inner rubber tube 1 is reduced, the material fatigue of the bent part of the inner rubber tube 1 is reduced, the service life of the inner rubber tube 1 is prolonged, and the use effect of the device is further improved; for the position of the inward bending of the inner rubber tube 1, the inner rubber tube 1 is extruded, so that the inward bending angle of the inner rubber tube 1 is increased, the inner rubber tube 1 is convenient to bend, and the actual application effect of the semi-spherical groove 11 is improved.
As an embodiment of the invention, the rope sling 21 is spirally distributed on the outer wall of the inner rubber pipe 1; when the rubber hose is in use, the rope sleeves 21 are spirally wound on the outer wall of the inner rubber hose 1, so that the two adjacent rope sleeves 21 are distributed in a staggered manner, the number of the braided wires 22 wound on the outer wall of the inner rubber hose 1 can be increased, the distance between the braided wires 22 of the two adjacent parallel inner rubber hoses 1 is reduced, the density of the braided wires 22 is increased, the strength of the enhancement layer 2 is improved, and the practicability of the rubber hose is further improved.
A method for manufacturing an ethylene propylene diene monomer rubber ring storage tube is suitable for the ethylene propylene diene monomer rubber ring storage tube, and comprises the following steps:
s1: dividing an ethylene propylene diene monomer raw material into two parts, wherein one part is used as a raw material of an inner rubber tube 1, the other part is used as a raw material of an outer rubber tube 3, the two parts of raw materials are respectively subjected to plastication and mulling, and then the plastified and mullitized raw material of the inner rubber tube 1 is extruded out of the inner rubber tube 1 through a screw extruder;
s2: conveying the inner rubber tube 1 preliminarily extruded by the extruder to a thread-hooking knitting machine, and tightening a slotting device at the inlet of the knitting machine to form a semi-spherical groove 11 in the outer wall of the inner rubber tube 1; the groover is retracted, and the end of the braided wire 22 which surrounds the inner wall of the crochet knitting machine is fixedly connected with the semi-spherical groove 11 on the outer wall of the inner rubber tube 1; as the inner rubber tube 1 continuously extends into the inner rubber tube, the surface of the inner rubber tube 1 is provided with hemispherical grooves 11 with the same interval;
s3: in the process that the inner rubber tube 1 extends, the clamp spirally surrounding the inner wall of the crocheting knitting machine extends out, so that the clamp clamps the braided wire 22 between two adjacent hemispherical grooves 11 and drives the braided wire 22 at the clamping position to rise, and at the moment, the fixer pushes the braided wire 22 above the hemispherical grooves 11 into the hemispherical grooves 11 and carries out hot bonding;
s4: in the process that the fixer fixes the braided wire 22, the pusher above the gripper pushes the rope sleeve 21 to tightly sleeve the braided wire 22 gripped by the gripper, and when the knitted inner rubber tube 1 extends out, the V-shaped rubber sleeve is sleeved at the rope sleeve 21, so that the V-shaped opening of the V-shaped rubber sleeve wraps the rope sleeve 21; thereby avoiding the raw material of the outer rubber tube 3 entering between the braided wire 22 and the inner rubber tube 1 when the outer rubber tube 3 is extruded;
s5: conveying the wrapped inner rubber tube 1 to a second rubber extruder for gluing, so that the inner rubber tube 1 and a reinforcing layer 2 with a V-shaped rubber sleeve are wrapped inside an outer rubber tube 3, conveying the extruded rubber tube to a vulcanizing tank for vulcanizing, and obtaining the required rubber tube after the belt vulcanization is finished.
The specific working process is as follows:
when the rubber tube is not bent, the braided wire 22 is bound by the rope sleeve 21, and at the moment, the rope sleeve 21 has the function of bearing load pressure, when a user bends the rubber tube, the outer diameter of the inner rubber tube 1 is bent and stretched, so that the fixed connection points of two adjacent braided wires 22 and the outer wall of the inner rubber tube 1 are far away, the braided wire 22 bent between two adjacent fixed points is pulled and stretched to be close to the outer wall of the inner rubber tube 1, along with the continuous bending of the rubber tube by the user, the braided wire 22 continuously extends out of the rope sleeve 21 and is close to the outer wall of the inner rubber tube 1, when the braided wire 22 does not reach the maximum bending angle, the extending part of the braided wire 22 is tightly attached to the outer wall of the inner rubber tube 1, the non-extending part of the braided wire 22 is still bound under the action of the rope sleeve 21, at the moment, the rope sleeve 21 still plays the function of bearing load pressure until the bending angle of the rubber tube is maximum, the braided wire 22 which is bent between two adjacent fixed points completely extends out of the rope sleeve 21 and is tightly attached to the outer wall of the inner rubber tube 1, at the moment, the braided wire 22 has the function of bearing the load pressure, and the rope sleeve 21 is positioned between the braided wire 22 and the outer rubber tube 3, so that the rope sleeve 21 not only can play the role of bearing the load pressure, but also can buffer external force, thereby playing a role of protecting the braided wire 22, at the moment, the braided wire 22 at the bent part of the rubber tube is not in a tight state, when the outer rubber tube 3 is acted by the external force, the external force is transmitted to the rope sleeve 21 from the outer rubber tube 3, the rope sleeve 21 is extruded by external impact and deformed and then transmitted to the braided wire 22, the condition that the braided wire 22 is broken due to the action of the external force is reduced, when the bent rubber tube is recovered, at the rope sleeve 21 is positioned between the braided wire 22 and the inner wall of the outer rubber tube 3, the braided wire 22 is positioned below the rope sleeve 21 and is tightly attached to the outer wall of the inner rubber tube 1 by the extrusion of the rope sleeve 21, the extruded braided wire 22 plays a supporting role on the inner wall of the rope sling 21; so that the rope sling 21 has the function of bearing the load pressure; when bending the rubber tube, braided wire 22 in the fag end 21 stretches out from fag end 21 lower extreme, because fag end 21 is the frustum form, it is more convenient to make braided wire 22 extend from fag end 21, thereby reduced the friction between fag end 21 and braided wire 22, reduce the wearing and tearing between fag end 21 and the braided wire 22, when crooked outer hose 3 receives the impact, outer hose 3 receives impact extrusion fag end 21, make the less one end of fag end 21 receive the compression and the shrink-in fag end 21, because fag end 21 is the taper cylinder form, make fag end 21 can support outer hose 3, make fag end 21 have the effect of bearing external load pressure.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. An Ethylene Propylene Diene Monomer (EPDM) rubber ring storage tube comprises an inner rubber tube (1), a reinforcing layer (2) and an outer rubber tube (3); enhancement layer (2) are located between interior rubber tube (1) and outer rubber tube (3), its characterized in that: the reinforcing layer (2) comprises a rope sleeve (21) and a braided wire (22); the axial direction of the rope sling (21) is parallel to the radial direction of the inner rubber tube (1), and the rope sling (21) is in sliding contact with the inner wall of the outer rubber tube (3); braided wire (22) encircle including rubber tube (1) outer wall, braided wire (22) length direction is on a parallel with the axial of interior rubber tube (1), and the shape of braided wire (22) itself is the ripple type, and the curved limit of braided wire (22) one side links firmly with interior rubber tube (1) outer wall, and the curved limit of opposite side and noose (21) inner wall sliding contact.
2. The ethylene propylene diene monomer environmental protection tube according to claim 1, wherein: the rope sling (21) is in a conical cylinder shape, and one end with larger diameter in the two ends of the rope sling (21) faces the inner rubber pipe (1); the rope sleeve (21) is made of aromatic imide fibers; the braided wire (22) is made of aramid fiber.
3. The ethylene propylene diene monomer environmental protection tube according to claim 2, wherein: the inner wall of the outer rubber pipe (3) is provided with a conical groove (31); the rope sling (21) is connected in the tapered groove (31) in a sliding way.
4. The ethylene propylene diene monomer environmental protection tube according to claim 3, wherein: the outer wall of the inner rubber tube (1) is provided with a semi-spherical groove (11); the curved edge of the braided wire (22) is fixedly connected in the semi-spherical groove (11).
5. The ethylene propylene diene monomer environmental protection tube according to claim 4, wherein: the rope sling (21) is spirally distributed on the outer wall of the inner rubber pipe (1).
6. A method for manufacturing an ethylene-propylene-diene monomer rubber ring storage tube, which is applied to the ethylene-propylene-diene monomer rubber ring storage tube of any one of claims 1 to 5, and is characterized in that: the method comprises the following steps:
s1: dividing an ethylene propylene diene monomer raw material into two parts, wherein one part is used as a raw material of an inner rubber tube (1), the other part is used as a raw material of an outer rubber tube (3), the two parts are respectively subjected to plastication and mulling, and then the plastified and mullitized raw material of the inner rubber tube (1) is extruded out of the inner rubber tube (1) through a screw extruder;
s2: conveying the inner rubber tube (1) preliminarily extruded by the extruder to a thread-hooking knitting machine, and tightening a grooving device at the inlet of the knitting machine to form a semi-spherical groove (11) in the outer wall of the inner rubber tube (1); the groover is retracted, and the end of a braided wire (22) which surrounds the inner wall of the crochet knitting machine is fixedly connected with a semi-spherical groove (11) on the outer wall of the inner rubber tube (1); as the inner rubber pipe (1) continuously extends into the inner rubber pipe, the surface of the inner rubber pipe (1) is provided with hemispherical grooves (11) with the same interval;
s3: in the process that the inner rubber tube (1) extends, the clamp spirally surrounds the inner wall of the crocheting knitting machine to extend out, so that the clamp clamps the braided wire (22) between two adjacent semi-spherical grooves (11) and drives the braided wire (22) at the clamping position to rise, and at the moment, the fixer pushes the braided wire (22) positioned above the semi-spherical grooves (11) into the semi-spherical grooves (11) and carries out hot sticking;
s4: in the process that the fixer fixes the braided wire (22), a pusher above the clamping device pushes the rope sleeve (21) to tightly sleeve the braided wire (22) clamped by the clamping device, and when the woven inner rubber tube (1) extends out, the V-shaped rubber sleeve is sleeved at the rope sleeve (21), so that a V-shaped opening of the V-shaped rubber sleeve wraps the rope sleeve (21); thereby avoiding the raw material of the outer rubber tube (3) entering between the braided wire (22) and the inner rubber tube (1) when the outer rubber tube (3) is extruded;
s5: conveying the wrapped inner rubber tube (1) to a second rubber extruder for gluing, so that the inner rubber tube (1) and a reinforcing layer (2) with a V-shaped rubber sleeve are wrapped inside an outer rubber tube (3), conveying the rubber tube subjected to extrusion molding to a vulcanizing tank for vulcanizing, and obtaining the required rubber tube after the belt vulcanization is finished.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210376919.5A CN114889108A (en) | 2022-04-11 | 2022-04-11 | Ethylene Propylene Diene Monomer (EPDM) environment-friendly tube and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210376919.5A CN114889108A (en) | 2022-04-11 | 2022-04-11 | Ethylene Propylene Diene Monomer (EPDM) environment-friendly tube and manufacturing method thereof |
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| CN114889108A true CN114889108A (en) | 2022-08-12 |
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