A manufacturing process for manufacturing a steel wire rope using a high polymer industrial filament

Abstract

The application discloses a preparation process of a steel wire rope prepared from high polymer industrial filaments, the steel wire rope comprising a rope core and a plurality of strands, the plurality of strands being wound on the outer surface of the rope core, the strand comprising a center wire, a plurality of inner layer wires and outer layer wires, the plurality of inner layer wires being wound on the outer surface of the center wire to form an inner core, and the plurality of outer layer wires being wound on the outer surface of the inner core, the production process of the steel wire rope comprising the following steps: step one, oiling the filaments and twisting the filaments into yarns; step two, arranging the yarns and twisting the yarns into the rope core; step three, performing surface treatment on the wire rod through an acid pickling device; step four, coarsely drawing the wire rod into a semi-finished steel wire; step five, performing heat treatment on the semi-finished steel wire; step six, drawing the semi-finished steel wire into the outer layer wires, the inner layer wires and the center wire; step seven, twisting the outer layer wires, the inner layer wires and the center wire into the strand; and step eight, twisting the strand and the rope core into the steel wire rope. The steel wire rope has the beneficial effects of improving the tensile strength and the compactness.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of steel wire rope, in particular to a preparation process for preparing steel wire rope by using high polymer industrial filaments. BACKGROUND

[0002] The steel wire rope is a spiral steel wire bundle twisted together according to certain rules by steel wires with required mechanical properties and geometric dimensions. The steel wire rope is commonly used in lifting application scenarios, such as elevators, escalators, etc. The steel wire rope is composed of steel wires, a rope core and lubricating grease. The steel wire rope is twisted into strands by multiple layers of steel wires, and then twisted around the rope core to form a spiral rope. In material handling machinery, the steel wire rope is used for lifting, traction, tensioning and load bearing. The steel wire rope has high strength, light weight, stable operation and is not easy to break suddenly.

[0003] In the prior art, the steel wire rope structure mainly includes a metal rope core, and the outer surface of the steel wire rope is provided in a spiral structure. The steel wire rope is a hollow structure formed around the metal rope core. The metal rope core has at least four metal wires. The outer surface of the metal rope core is provided with six steel strands which are uniformly distributed on the outer surface of the metal rope core. The outer surface of the steel wire rope is covered with a rubber layer. Therefore, according to the existing production process, the steel wire rope is a hollow structure, and the outer surface of the metal rope core is twisted only by a single layer of steel strands, which results in insufficient tensile strength and poor compactness of the steel wire rope. This makes the steel wire rope easily broken at the pulley due to the contact pressure between the steel wire rope and the pulley. SUMMARY

[0004] The present application is to overcome the deficiencies of insufficient tensile strength and poor compactness of the steel wire rope in the prior art, and provides a preparation process for preparing a steel wire rope by using high polymer industrial filaments, which is beneficial to improving the tensile strength and compactness.

[0005] In order to achieve the above-mentioned purpose, the present application adopts the following technical scheme:

[0006] A preparation process for preparing a steel wire rope by using high polymer industrial filaments, the steel wire rope comprising a rope core and a plurality of strands, the plurality of strands being uniformly wound on the outer surface of the rope core, the strand comprising a center wire, a plurality of inner layer wires and a plurality of outer layer wires, the plurality of inner layer wires being uniformly wound on the outer surface of the center wire to form an inner core, and the plurality of outer layer wires being uniformly wound on the outer surface of the inner core. The preparation process for preparing a steel wire rope by using high polymer industrial filaments comprises the following steps:

[0007] Step 1: preparing a wire rod, high polymer industrial filaments and oil with a kinematic viscosity of ≥20 mm² / s, immersing the high polymer industrial filaments in oil and twisting them into a yarn simultaneously;

[0008] Step two, according to the process configuration yarn count, and the yarn synchronous twist into the core;

[0009] Step three, the pickling equipment for the surface treatment of the wire rod, using hydrochloric acid respectively through the pre-pickling and pickling to remove the wire rod on the oxide skin, and then phosphating attached phosphating film;

[0010] Step four, the wire rod through the straight drawing coarse draw into semi-finished steel wire;

[0011] Step five, the semi-finished steel wire is heat treated; the heat treatment converts the sorbite, which is beneficial to improve the tensile strength;

[0012] Step six, the semi-finished steel wire is drawn into outer layer wire, inner layer wire and center wire after passing through the water tank, and is lubricated and water cooled;

[0013] Step seven, the outer layer wire, the inner layer wire and the center wire are twisted into a rope strand, and the twisting direction is left twist;

[0014] Step eight, the rope strand and the core are twisted into a steel wire rope, and the twisting direction is right alternating twist;

[0015] The pickling equipment comprises a mounting frame and a liquid storage tank, the mounting frame is located on the side of the liquid storage tank, a roller is arranged on the mounting frame, the roller is rotationally connected with the mounting frame, an eccentric shaft body is arranged in the roller, one end of the shaft body is fixedly connected with the bottom of the roller, the other end of the shaft body is located in the opening end of the roller, a sealing cover is hingedly connected at the opening end of the roller, a water pump is arranged on the liquid storage tank, a water pipe is arranged on the water pump, one end of the water pipe is communicated with the liquid storage tank through the water pump, the other end of the water pipe penetrates through the side wall of the roller and is located in the roller, and the water pipe is rotationally connected with the roller. The high polymer industrial filament can be a polyethylene filament or a polyester filament. The high polymer industrial filament is used for preparing the steel wire rope, and the steel wire rope has the performance characteristics of waterproof, oil-proof and good toughness. The steel wire rope is a solid rope because the plurality of rope strands are uniformly wound on the outer surface of the core, and the rope strands are twisted into a double-layer solid structure by the outer layer wire, the inner layer wire and the center wire. Compared with the steel wire rope with an internal hollow structure and a thin rope strand structure, the steel wire rope can improve the tensile strength and the compactness to a certain extent. The liquid storage tank stores pickling solution. When the wire rod (i.e. the wire rod delivered in a coil form) is pickled, the operator opens the sealing cover, puts the wire rod into the roller and wraps the wire rod on the shaft body, and then closes the sealing cover. After starting the equipment, the water pump pumps the pickling solution in the liquid storage tank into the roller. After pumping is completed, the roller rotates, and the wire rod generates a centrifugal effect under the action of the eccentric shaft body, so that the originally mutually adhered parts of the wire rod can be staggered and separated, so that the wire rod can be in full contact with the pickling solution, and the pickling effect is improved.

[0016] As preferred, in step one, the elongation at break of the polymer industrial filament is 16.5%±2.0, and the breaking strength is ≥8.00 cN / dtex; the twisting degree of the polymer industrial filament when twisted into yarn is 55 turns per meter, and the oil temperature is 105±10℃.

[0017] As preferred, in step two, the number of strands of the core is 3, and the twisting pitch is 20±1mm, the diameter of the core is 4.9±0.1mm, the linear density is 18±2g / m, and the oil content is 7~12%.

[0018] As preferred, in step three, the total acidity of pickling is 70~100 points, and the free acidity is 6~11 points; the hydrochloric acid content of pre-pickling is 3%~8%, and the hydrochloric acid content of pickling is 8%~14%; when phosphating, the temperature of the phosphating cylinder is 70~90℃, and the phosphating film weight is ≥7.5g / mm².

[0019] As preferred, in step six and step seven, the diameter of the center wire is 0.60mm; the diameter of the inner layer wire is 0.30mm, and the tensile strength is 1770Mpa~2160Mpa; the diameter of the outer layer wire is 0.53mm, and the tensile strength is 1620Mpa~1900Mpa; the diameter tolerance of the center wire, the inner layer wire and the outer layer wire is all ±0.01mm; the strand diameter of the strand is 2.1±0.01mm, the strand twisting pitch is 18.4±0.6mm, and the oil content is 1.2~2.0%.

[0020] As preferred, in step eight, the non-circularity of the steel wire rope after reeling is ≥98%, the rope twisting pitch is 52±1.5mm, and the pre-tension is 12.8±1KN; under no load state, the diameter of the steel wire rope is 8.16~8.48mm; under 5% load, the diameter of the steel wire rope is 8.08~8.40mm; under 10% load, the diameter of the steel wire rope is 8.00-8.32mm; after the strand is pre-deformed, pressed by the wire pressing die, and post-deformed, it is twisted with the core into a steel wire rope, and finally cut, packaged and shipped according to customer requirements.

[0021] As preferred, the cross-sectional shape of the roller is circular, the shaft body is horizontally arranged and parallel to the depth direction of the roller, and the shaft body is located on the side of the center axis of the roller. The shaft body is arranged in a manner that facilitates the operator to put the wire rod on the shaft body, and more conducive to the separation of the originally adhered parts of the wire rod during pickling.

[0022] As preferred, the number of water pumps is two, the water pumps are respectively detachably connected with liquid inlet pipes and liquid outlet pipes, the water pumps are detachably connected with the liquid storage tank through the liquid inlet pipes and are in communication, one end of the liquid outlet pipe is connected with the water pump, the other end of the liquid outlet pipe is provided with a three-way valve, the liquid outlet pipe is detachably connected with one end of a water pipe through the three-way valve, the other end of the water pipe is provided with a rotary joint, the water pipe is detachably connected with an L-shaped pipe through the rotary joint, one side of the pipe penetrates through the center of the bottom of the roller and is sealingly fixed with the roller, the number of water pumps is two, the water pumps are respectively detachably connected with liquid inlet pipes and liquid outlet pipes, the water pumps are detachably connected with the liquid storage tank through the liquid inlet pipes and are in communication, one end of the liquid outlet pipe is connected with the water pump, the other end of the liquid outlet pipe is provided with a three-way valve, the liquid outlet pipe is detachably connected with one end of a water pipe through the three-way valve, the other end of the water pipe is provided with a rotary joint, the water pipe is detachably connected with an L-shaped pipe through the rotary joint, one side of the pipe penetrates through the center of the bottom of the roller and is sealingly fixed with the roller, the other side of the pipe is located in the roller and is parallel to the bottom of the roller, one end of the pipe is located outside the roller and is sealingly rotatably connected with the water pipe through the rotary joint, the other end of the pipe is in a suspended state in the roller, the bottom of the roller is respectively connected with an inductive block one and an inductive block two corresponding to the other side of the pipe, the inductive block one is located above the shaft body, the inductive block two is located below the shaft body, the mounting frame is provided with a proximity switch one and a proximity switch two which are electrically connected with the inductive block one and the inductive block two respectively, and the proximity switch one and the proximity switch two are electrically connected with the two water pumps. After starting the equipment, the operator operates the corresponding control button, so that the roller rotates by a certain angle, the pipe corresponds to the inductive block one, the inductive block one transmits a signal to the control system through the proximity switch one, the control system controls one of the water pumps to work, and the pickling solution in the liquid storage tank is extracted into the roller; when the pickling is completed, the operator again operates the corresponding control button, so that the roller rotates to the position where the pipe corresponds to the inductive block two, the inductive block two transmits a signal to the control system through the proximity switch two, the control system controls the other water pump to work, and the pickling solution in the roller is extracted into the liquid storage tank, so that the purpose of recycling the pickling solution is achieved, which is beneficial to saving resources; the inductive block two is located below the shaft body, so that when the pipe corresponds to the inductive block two, the end of the pipe in a suspended state faces downward, which is beneficial to improving the extraction effect of the pickling solution in the roller.

[0023] As preferred, a plurality of long shafts parallel to the roller are arranged on the mounting frame, the long shafts are located outside the roller, the long shafts are uniformly distributed along the circumference of the roller, the two ends of the long shafts are rotatably connected to the front and rear sides of the mounting frame, the two ends of the long shafts are sleeved with rollers, the rollers are rotatably connected to the long shafts and are in contact with the surface of the roller, which is beneficial to the rotation of the roller, and is beneficial to the position stability of the roller during rotation and reduces noise; two annular grooves matched with the rollers at the two ends of the long shafts are arranged on the roller, the rollers are rotatably connected to the surface of the roller through the annular grooves, the rollers are matched with the annular grooves, which further improves the position stability of the roller during rotation, thereby reducing noise; a pressure relief valve is arranged on the side wall of the roller, the pressure relief valve is located above the shaft body, and a pressure difference is generated between the inside and outside of the roller during the extraction of the pickling solution in the roller, so that the pressure difference between the inside and outside of the roller is balanced through the pressure relief valve.

[0024] As preferred, a gear and a driven wheel are arranged on one of the long shafts, the gear and the driven wheel are fixedly connected to the long shaft, a plurality of tooth blocks are arranged on the surface of the roller, the tooth blocks are uniformly distributed along the circumference of the roller and are engaged with the gear, a reduction motor is detachably connected to the mounting frame, a driving wheel is arranged on the output end of the reduction motor, a belt is arranged on the driving wheel, one end of the belt is sleeved on the driving wheel, and the other end of the belt is sleeved on the driven wheel. The reduction motor drives one of the long shafts to rotate through the belt, the long shaft drives the roller to rotate through the gear and the tooth blocks.

[0025] The beneficial effects of the present application are: the steel wire rope is prepared by using high polymer industrial filaments, which has the performance characteristics of waterproof, oil-proof and good toughness; compared with the steel wire rope with hollow inside and thin rope structure, the purpose of improving the tensile strength and compactness is achieved to some extent; the rod can be fully contacted with the pickling solution to improve the pickling effect; the purpose of recycling and recycling the pickling solution is achieved, which is beneficial to resource saving; the pickling solution extraction effect in the roller is improved; the position stability of the roller during rotation is ensured, and the noise is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is a structure diagram of the steel wire rope in the present application;

[0027] Figure 2 is a preparation process flow chart of the steel wire rope prepared by using high polymer industrial filaments in the present application;

[0028] Figure 3 is a structure diagram of the pickling equipment;

[0029] Figure 4 is Figure 3 the right view of

[0030] Figure 5 Figure 3 is a structural schematic diagram of the wire rod after being put into the pickling equipment.

[0031] In the figure: 1. rope core, 2. rope strand, 3. center wire, 4. inner layer wire, 5. outer layer wire, 6. inner core, 7. mounting frame, 8. liquid storage tank, 9. roller, 10. shaft body, 11. sealing cover, 12. water pump, 13. water pipe, 14. liquid inlet pipe, 15. liquid outlet pipe, 16. three-way valve, 17. rotary joint, 18. pipeline, 19. induction block one, 20. induction block two, 21. proximity switch one, 22. proximity switch two, 23. long shaft, 24. idler wheel, 25. annular groove, 26. gear, 27. driven wheel, 28. tooth block, 29. speed reduction motor, 30. driving wheel, 31. belt, 32. pressure relief valve. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. The description of the at least one exemplary embodiment is actually only illustrative, but not intended to limit the present application and its application or use in any way. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making any creative effort fall within the scope of protection of the present application.

[0033] It should be noted that the terms used herein are only intended to describe specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form, unless the context clearly indicates otherwise, and it should also be understood that when the terms "comprise" and / or "include" are used in the specification, there is a feature, step, operation, device, component and / or combination thereof.

[0034] The relative positioning of the components set forth in the examples, numerical expressions, and numerical values are not intended to limit the scope of the present application unless specifically stated otherwise. For ease of illustration, spatially relative terms such as "upper", "lower", "left", "right", and the like are used for describing the orientation of one element or feature to another element or feature as shown in the drawings. It will be understood that the spatial terms are intended to encompass different orientations of the device in use or operation, in addition to the orientation depicted in the drawings. For example, if the device in the drawings is turned over, an element described as being on the other side of other elements or features would then be oriented on the same side. Thus, the exemplary term "under" can encompass both an orientation of above and below. The device can be otherwise oriented (rotated 90 degrees or oriented in another way) and the spatially relative descriptors used herein interpreted accordingly. It will also be understood that the dimensions of the various parts shown in the drawings are not to scale and that the dimensions of the parts can be arbitrarily increased or decreased for the clarity of discussion and illustration. Techniques, procedures, and devices known to those of ordinary skill in the relevant art can not be discussed in detail, but should be considered part of the disclosure where appropriate. In all examples shown and discussed herein, any specific value should be interpreted as merely exemplary and not as a limitation. Thus, other examples of the exemplary embodiments can have different values. It should be noted that like reference numerals and letters refer to like items in the drawings, and thus, once an item is defined in one drawing, it need not be discussed further in subsequent drawings.

[0035] Further, it should be noted that the use of "first", "second", and the like words of distinction do not have a special meaning and should not be interpreted as limiting the scope of the present application unless otherwise stated.

[0036] As Figure 1 In the described embodiments, a preparation process for preparing a steel wire rope by using polymer industrial filaments, wherein the steel wire rope comprises a rope core 1 and a plurality of strands 2, the plurality of strands 2 are uniformly wound on the outer surface of the rope core 1, characterized in that the strands 2 comprise a center filament 3, a plurality of inner layer filaments 4, and a plurality of outer layer filaments 5, the plurality of inner layer filaments 4 are uniformly wound on the outer surface of the center filament 3 to form an inner core 6, and the plurality of outer layer filaments 5 are uniformly wound on the outer surface of the inner core 6, as shown in Figure 2 The preparation process for preparing a steel wire rope by using polymer industrial filaments comprises the following steps:

[0037] Step one, prepare a wire rod, polymer industrial filaments, and oil with a kinematic viscosity ≥ 20 mm² / s, dip the polymer industrial filaments in oil and twist them into yarn simultaneously;

[0038] Step two, configure the yarn according to the process, and twist the yarn into the rope core 1 simultaneously;

[0039] Step three, the acid washing equipment carries out surface treatment on the wire rod, removes the oxide skin on the wire rod by pre-acid washing and acid washing respectively by using hydrochloric acid, and then attaches a phosphating film by phosphating;

[0040] Step four, the wire rod is drawn into a semi-finished steel wire by straight drawing;

[0041] Step five, the semi-finished steel wire is heat treated;

[0042] Step six, the semi-finished steel wire is drawn into the outer layer wire 5, the inner layer wire 4 and the center wire 3 by fine drawing through the water tank, and is lubricated and water-cooled;

[0043] Step seven, the outer layer wire 5, the inner layer wire 4 and the center wire 3 are twisted into a strand 2, and the twisting direction is left twisting;

[0044] Step eight, the strand 2 and the core 1 are twisted into a steel wire rope, and the twisting direction is right alternating twisting;

[0045] As shown in the embodiments of Figure 3 , Figure 4 and Figure 5 , the acid washing equipment comprises a mounting frame 7 and a liquid storage tank 8, the mounting frame 7 is located on the side of the liquid storage tank 8, a roller 9 is arranged on the mounting frame 7, the roller 9 is rotationally connected with the mounting frame 7, an axle body 10 is eccentrically arranged in the roller 9, one end of the axle body 10 is fixedly connected with the bottom of the roller 9, the other end of the axle body 10 is located in the opening end of the roller 9, a sealing cover 11 is hingedly connected at the opening end of the roller 9, a water pump 12 is arranged on the liquid storage tank 8, a water pipe 13 is arranged on the water pump 12, one end of the water pipe 13 is connected with the liquid storage tank 8 in communication through the water pump 12, the other end of the water pipe 13 penetrates through the side wall of the roller 9 and is located in the roller 9, and the water pipe 13 is rotationally connected with the roller 9.

[0046] In step one, the elongation at break of the high polymer industrial filament is 16.5%±2.0, and the breaking strength is ≥8.00 cN / dtex; the twisting degree of the high polymer industrial filament when twisted into yarn is 55 turns per meter, and the oil temperature is 105±10°C.

[0047] In step two, the number of strands of the core 1 is 3, and the twisting pitch is 20±1 mm; the diameter of the core 1 is 4.9±0.1 mm, the linear density is 18±2 g / m, and the oil content is 7-12%.

[0048] In step three, the total acidity of the acid washing is 70-100 points, and the free acidity is 6-11 points; the hydrochloric acid content of the pre-acid washing is 3%-8%, and the hydrochloric acid content of the acid washing is 8%-14%; when phosphating, the temperature of the phosphating cylinder is 70-90°C, and the phosphating film weight is ≥7.5 g / mm².

[0049] In step six and step seven, the diameter of the center wire 3 is 0.60mm; the diameter of the inner layer wire 4 is 0.30mm, the tensile strength is 1770Mpa~2160Mpa; the diameter of the outer layer wire 5 is 0.53mm, the tensile strength is 1620Mpa~1900Mpa; the diameter tolerance of the center wire 3, the inner layer wire 4 and the outer layer wire 5 is ±0.01mm; the strand diameter of the strand 2 is 2.1±0.01mm, the strand lay length is 18.4±0.6mm and the oil content is 1.2~2.0%.

[0050] In step eight, the roundness of the steel wire rope after the rope is combined is ≥98%, the rope lay length is 52±1.5mm and the pre-tension is 12.8±1KN; under the no-load state, the diameter of the steel wire rope is 8.16~8.48mm; under the 5% load, the diameter of the steel wire rope is 8.08~8.40mm; under the 10% load, the diameter of the steel wire rope is 8.00-8.32mm; the strand 2 is twisted into a steel wire rope with the rope core 1 after pre-deformation, wire pressing die and post-deformation, and finally cut, packaged and shipped according to the customer's requirements.

[0051] As shown in Figure 4 and Figure 5 , the cross-sectional shape of the drum 9 is circular, the shaft body 10 is horizontally arranged and parallel to the depth direction of the drum 9, and the shaft body 10 is located on the side of the center axis of the drum 9.

[0052] As shown in Figure 3 and Figure 4 , the number of water pumps 12 is two, the water pump 12 is detachably connected with the inlet pipe 14 and the outlet pipe 15 respectively, the water pump 12 is detachably connected with the liquid storage tank 8 and communicates with each other through the inlet pipe 14, one end of the outlet pipe 15 is connected with the water pump 12, the other end of the outlet pipe 15 is provided with a three-way valve 16, the outlet pipe 15 is detachably connected with one end of the water pipe 13 through the three-way valve 16, the other end of the water pipe 13 is provided with a rotary joint 17, the water pipe 13 is detachably connected with an L-shaped pipe 18 through the rotary joint 17, one side of the pipe 18 penetrates through the bottom center of the drum 9 and is sealingly fixed with the drum 9, the other side of the pipe 18 is located in the drum 9 and parallel to the bottom of the drum 9, one end of the pipe 18 is located outside the drum 9 and sealingly rotatably connected with the water pipe 13 through the rotary joint 17, the other end of the pipe 18 is in a suspended state in the drum 9, the bottom of the drum 9 is respectively connected with the induction block one 19 and the induction block two 20 corresponding to the other side of the pipe 18, the induction block one 19 is located above the shaft body 10, the induction block two 20 is located below the shaft body 10, the mounting frame 7 is provided with the proximity switch one 21 and the proximity switch two 22 electrically connected with the induction block one 19 and the induction block two 20 respectively, the proximity switch one 21 and the proximity switch two 22 are electrically connected with the two water pumps 12 respectively.

[0053] The mounting frame 7 is provided with a plurality of long shafts 23 parallel to the roller 9, the long shafts 23 are located outside the roller 9, the plurality of long shafts 23 are uniformly distributed along the circumference of the roller 9, the two ends of the long shaft 23 are rotatably connected to the front and rear sides of the mounting frame 7, the two ends of the long shaft 23 are sleeved with a roller 24, the roller 24 is rotatably connected with the long shaft 23 and is in contact with the surface of the roller 9; the roller 9 is provided with two annular grooves 25 matched with the rollers 24 at the two ends of the long shaft 23, the roller 24 is rotatably connected with the surface of the roller 9 through the annular groove 25; the side wall of the roller 9 is provided with a pressure relief valve 32, the pressure relief valve 32 is located above the shaft body 10.

[0054] One of the long shafts 23 is provided with a gear 26 and a driven wheel 27, the gear 26 and the driven wheel 27 are fixedly connected with the long shaft 23, the surface of the roller 9 is provided with a plurality of tooth blocks 28, the plurality of tooth blocks 28 are uniformly distributed along the circumference of the roller 9 and are engaged with the gear 26, the mounting frame 7 is detachably connected with a speed reducer 29, the output end of the speed reducer 29 is provided with a driving wheel 30, the driving wheel 30 is provided with a belt 31, one end of the belt 31 is sleeved on the driving wheel 30, and the other end of the belt 31 is sleeved on the driven wheel 27.

[0055] The liquid storage tank 8 stores pickling solution; when the wire rod (i.e. wire rod delivered in a coil form) is pickled, the operator opens the sealing cover 11, puts the wire rod into the roller 9 and sleeves it on the shaft body 10, and closes the sealing cover 11; the equipment is started, the operator operates the corresponding control button, so that the roller 9 rotates by a certain angle, the pipeline 18 corresponds to the sensing block one 19, the sensing block one 19 transmits a signal to the control system through the proximity switch one 21, the control system controls one of the water pumps 12 to work, and the pickling solution in the liquid storage tank 8 is pumped into the roller 9; after pumping is completed, the speed reducer 29 drives one of the long shafts 23 to rotate through the belt 31, the long shaft 23 drives the roller 9 to rotate through the gear 26 and the plurality of tooth blocks 28. The wire rod produces a centrifugal effect under the action of the eccentric shaft body 10, so that the originally mutually adhered parts of the wire rod can be staggered and separated, so that the wire rod can be in full contact with the pickling solution, and the pickling effect is improved. When the pickling is completed, the operator operates the corresponding control button again, so that the roller 9 rotates to the position where the pipeline 18 corresponds to the sensing block two 20, the sensing block two 20 transmits a signal to the control system through the proximity switch two 22, the control system controls the other water pump 12 to work, and the pickling solution in the roller 9 is pumped into the liquid storage tank 8, so that the purpose of recycling the pickling solution is achieved, which is beneficial to saving resources; the sensing block two 20 is located below the shaft body 10, so that when the pipeline 18 corresponds to it, the end of the suspended state thereof faces downward, which is convenient for improving the pumping effect of the pickling solution in the roller 9.

Claims

1. A manufacturing process for steel wire rope using polymer industrial filaments, wherein the steel wire rope comprises a core (1) and several strands (2), the several strands (2) being uniformly wound around the outer surface of the core (1), characterized in that, The rope strand (2) includes a center wire (3), several inner layer wires (4) and several outer layer wires (5). The several inner layer wires (4) are evenly wound around the outer surface of the center wire (3) to form an inner core (6). The several outer layer wires (5) are evenly wound around the outer surface of the inner core (6). The manufacturing process of this wire rope includes the following steps: Step 1: Prepare wire rod, polymer industrial filament and grease with a kinematic viscosity ≥20mm² / s. Soak the polymer industrial filament in grease and twist it into yarn simultaneously. Step 2: Configure the yarn count according to the process and twist the yarn count into a rope core simultaneously (1). Step 3: The pickling equipment performs surface treatment on the wire rod. Hydrochloric acid is used to remove the oxide scale on the wire rod through pre-pickling and pickling respectively, and then a phosphate film is attached by phosphating. Step four: The wire rod is coarsely drawn into semi-finished steel wire through a straight-line drawing process; Step 5: Heat treat the semi-finished steel wire; Step 6: The semi-finished steel wire is drawn into outer wire (5), inner wire (4) and center wire (3) through a water tank, and then lubricated and water-cooled. Step 7: Twist the outer layer filament (5), inner layer filament (4) and center filament (3) into a rope strand (2), with the twist direction being left twist; Step 8: Twist the rope strands (2) and the rope core (1) together to form a wire rope, with the twist direction being right-hand alternating twist; The pickling equipment includes a mounting frame (7) and a storage tank (8). The mounting frame (7) is located on the side of the storage tank (8). A roller (9) is mounted on the mounting frame (7). The roller (9) is rotatably connected to the mounting frame (7). A shaft (10) is eccentrically arranged inside the roller (9). One end of the shaft (10) is fixedly connected to the bottom of the roller (9). The other end of the shaft (10) is located inside the open end of the roller (9). A sealing cap (11) is hinged to the open end of the roller (9). A water pump (12) is mounted on the storage tank (8). A water pipe (13) is mounted on the water pump (12). One end of the water pipe (13) is connected to the storage tank (8) through the water pump (12). The other end passes through the side wall of the drum (9) and is located inside the drum (9). The water pipe (13) is rotatably connected to the drum (9). There are two water pumps (12). The water pumps (12) are respectively detachably connected to an inlet pipe (14) and an outlet pipe (15). The water pumps (12) are detachably connected to the storage tank (8) through the inlet pipe (14) and are in communication. One end of the outlet pipe (15) is connected to the water pump (12). The other end of the outlet pipe (15) is provided with a three-way valve (16). The outlet pipe (15) is detachably connected to one end of the water pipe (13) through the three-way valve (16). The other end of the water pipe (13) is provided with a rotary joint (17). The water pipe (13) is detachable through the rotary joint (17). An L-shaped pipe (18) is connected. One side of the pipe (18) passes through the bottom center of the roller (9) and is sealed and fixed to the roller (9). The other side of the pipe (18) is located inside the roller (9) and is parallel to the bottom of the roller (9). One end of the pipe (18) is located outside the roller (9) and is sealed and rotatably connected to the water pipe (13) through a rotary joint (17). The other end of the pipe (18) is suspended inside the roller (9). The bottom of the roller (9) is connected to a sensor block one (19) and a sensor block two (20) corresponding to the other side of the pipe (18). The sensor block one (19) is located above the shaft (10), and the sensor block two (20) is located below the shaft (10). The mounting frame (7) is provided with proximity switch one (21) and proximity switch two (22) which are electrically connected to sensing block one (19) and sensing block two (20) respectively. The proximity switch one (21) and proximity switch two (22) are electrically connected to two water pumps (12) respectively. The mounting frame (7) is provided with several long shafts (23) that are parallel to the roller (9). The long shafts (23) are located on the outside of the roller (9). The long shafts (23) are evenly distributed along the circumference of the roller (9). The two ends of the long shafts (23) are rotatably connected to the front and rear sides of the mounting frame (7) respectively. Rollers (24) are sleeved on both ends of the long shafts (23). The rollers (24) are rotatably connected to the long shafts (23) and in contact with the surface of the roller (9).The roller (9) is provided with two annular grooves (25) that match the rollers (24) at both ends of the long shaft (23). The rollers (24) are rotatably connected to the surface of the roller (9) through the annular grooves (25). A pressure relief valve (32) is provided on the side wall of the roller (9), and the pressure relief valve (32) is located above the shaft (10).

2. The preparation process for steel wire rope using polymer industrial filaments according to claim 1, characterized in that, In step one, the breaking elongation of the polymer industrial filament is 16.5%±2.0, and the breaking strength is ≥8.00cN / dtex; the twist of the polymer industrial filament when twisting it into yarn is 55 rpm, and the oil temperature is 105±10℃.

3. The preparation process for steel wire rope using polymer industrial filaments according to claim 1, characterized in that, In step two, the number of strands of the rope core (1) is 3, the twist pitch is 20±1mm, the diameter of the rope core (1) is 4.9±0.1mm, the linear density is 18±2g / m, and the oil content is 7~12%.

4. The preparation process for steel wire rope using polymer industrial filaments according to claim 1, characterized in that, in In step three, the total acidity of pickling is 70-100 points, and the free acidity is 6-11 points; the hydrochloric acid content of pre-pickling is 3%-8%, and the hydrochloric acid content of pickling is 8%-14%; during phosphating, the temperature of the phosphating tank is 70-90℃, and the weight of the phosphating film is ≥7.5g / mm².

5. The preparation process for steel wire rope using polymer industrial filaments according to claim 1, characterized in that, In steps six and seven, the diameter of the center filament (3) is 0.60 mm; the diameter of the inner filament (4) is 0.30 mm and the tensile strength is 1770 MPa to 2160 MPa; the diameter of the outer filament (5) is 0.53 mm and the tensile strength is 1620 MPa to 1900 MPa; the diameter tolerance of the center filament (3), the inner filament (4) and the outer filament (5) is ±0.01 mm; the strand diameter of the rope strand (2) is 2.1 ± 0.01 mm, the strand twist distance is 18.4 ± 0.6 mm and the oil content is 1.2 to 2.0%.

6. The preparation process for steel wire rope using polymer industrial filaments according to claim 1, characterized in that, In step eight, the out-of-roundness of the wire rope after rope assembly is ≥98%, the rope lay is 52±1.5mm, and the pretension is 12.8±1KN; under no-load conditions, the wire rope diameter is 8.16~8.48mm; under 5% load, the wire rope diameter is 8.08~8.40mm. Under 10% load, the wire rope diameter is 8.00-8.32mm; the rope strands (2) are pre-deformed, pressed with a die, and then deformed and twisted with the rope core (1) to form a wire rope. Finally, it is cut, packaged and shipped according to customer requirements.

7. A process for preparing steel wire rope using polymer industrial filaments according to claim 1, 2, 3, 4, 5, or 6, characterized in that, The cross-sectional shape of the roller (9) is circular, the shaft (10) is arranged horizontally and parallel to the depth direction of the roller (9), and the shaft (10) is located on the side of the central axis of the roller (9).

8. A process for preparing steel wire rope using polymer industrial filaments according to claim 1, 2, 3, 4, 5, or 6, characterized in that, One of the long shafts (23) is provided with a gear (26) and a driven wheel (27). The gear (26) and the driven wheel (27) are fixedly connected to the long shaft (23). The surface of the roller (9) is provided with several tooth blocks (28). The several tooth blocks (28) are evenly distributed along the circumference of the roller (9) and mesh with the gear (26). The mounting bracket (7) is detachably connected with a reduction motor (29). The output end of the reduction motor (29) is provided with a drive wheel (30). The drive wheel (30) is provided with a belt (31). One end of the belt (31) is set on the drive wheel (30), and the other end of the belt (31) is set on the driven wheel (27).

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