Multi-stage spray cooling fused monofilament thread spinner and application thereof in production of plastic steel wires

Abstract

The invention relates to the technical field of plastic steel wire production, in particular to a multi-stage spraying and cooling fused monofilament thread spinner and application thereof in plastic steel wire production, the multi-stage spraying and cooling fused monofilament thread spinner comprises a supporting truss, a cooling channel and a water tank, the cooling channel and the water tank are fixed to the supporting truss, and the end of the cooling channel is communicated with a cooling pipe; the multi-stage spraying mechanism is arranged in the cooling channel and is used for performing multi-stage spraying cooling action on the plastic steel wire; the pressurization regulation and control mechanism is arranged in the cooling pipe, the pressurization regulation and control mechanism comprises a plurality of air guide plates which are circumferentially distributed at equal intervals, a follow-up turbulent flow mechanism is arranged on the cooling pipe, the pressurization regulation and control mechanism can regulate the distance between the air guide plates, and the deflection angles of the air guide plates are regulated through the follow-up turbulent flow mechanism. And the pressure intensity and the gas flowing direction in the cooling pipe are continuously adjusted, so that the gas is in a turbulent flow state to cool the plastic steel wire, and the cooling effect is enhanced.

Description

Technical Field

[0001] The present invention relates to the technical field of plastic-steel wire production, and in particular to a melting monofilament spinning machine with multi-stage spray cooling and its application in plastic-steel wire production. Background Art

[0002] Plastic-steel wire is a kind of wire made mainly of polyethylene terephthalate (PET), which has the advantages of high strength, not easy to absorb moisture, corrosion resistance, etc., and is widely used in fields such as agricultural greenhouses, municipal pipeline networks, and packaging industries.

[0003] After the plastic-steel wire is melt-extruded, it needs to be cooled. The cooling method of the plastic-steel wire is usually a combination of water cooling and air cooling, so as to increase the cooling rate and enhance the cooling effect, and ensure that the plastic-steel wire obtains the required flexibility and physical properties.

[0004] When the plastic-steel wire is water-cooled, it can be air-cooled. The existing air-cooling is operated by blowing air with a fan. Under the action of the fan, the air will flow along the surface of the plastic-steel wire and be cooled by heat exchange. However, the air blown by the fan usually can only flow along the axial direction of the plastic-steel wire, which results in a small heat exchange time and heat exchange area between the air and the plastic-steel wire, and then leads to insufficient cooling, so that the stress inside the fiber cannot be completely released, resulting in a too large hardness of the final product and affecting the quality and performance of the fiber. Summary of the Invention

[0005] The purpose of the present invention is to provide a melting monofilament spinning machine with multi-stage spray cooling and its application in plastic-steel wire production to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A melting monofilament spinning machine with multi-stage spray cooling, including: a support truss, and a cooling channel and a water tank fixed on the support truss, and a cooling pipe is connected to the end of the cooling channel; further including: a multi-stage spray mechanism arranged in the cooling channel for performing multi-stage spray cooling actions on the plastic-steel wire; a pressure boosting and regulating mechanism arranged in the cooling pipe, the pressure boosting and regulating mechanism includes a plurality of air guide plates evenly distributed in a circumferential manner, a follow-up turbulence mechanism is arranged on the cooling pipe, and the pressure boosting and regulating mechanism can adjust the distance between the air guide plates and adjust the yaw angle of the air guide plates through the follow-up turbulence mechanism to perform pressure boosting and turbulence actions on the air in the cooling pipe.

[0007] As a further solution of the present invention: the boost control mechanism includes a support plate fixed on the circumferential outer wall of the cooling tube and symmetrically arranged, and a plurality of slide grooves equidistantly distributed around the circumference are formed on the support plate, and a sliding block is slidably installed in the slide groove; it also includes a connecting plate fixed on the side wall of the sliding block, and a movable rod that passes through the cooling tube and is used to adjust the spacing between the air guide plates is fixed on the connecting plate.

[0008] As a further solution of the present invention: the boost control mechanism also includes a movable ring slidably mounted on the cooling pipe, a cylinder fixedly connected to the movable ring is fixed to the side wall of the cooling channel, and a connecting rod is hinged on the movable ring for converting the horizontal movement of the movable ring into the vertical movement of the sliding block.

[0009] As a further solution of the present invention: the follow-up spoiler mechanism includes a plurality of slots formed on the outer wall of the cooling pipe and distributed equidistantly around the circumference, a movable block is slidably installed in the slot, a movable plate is fixed on the movable block, and a hinged rod for adjusting the swing angle of the air guide plate is hinged on the movable plate; it also includes a reset component and a driven component connected to the connecting plate for controlling the reciprocating movement of the movable block along the slot.

[0010] As a further solution of the present invention: the reset assembly includes a guide column fixed in the slot and passing through the movable block, the guide column is sleeved with a spring, and two ends of the spring are respectively in contact with the movable block and the slot.

[0011] As a further solution of the present invention: the driven component includes a rotating rod rotatably mounted on the cooling pipe, a movable sleeve is fixed on the connecting plate and slides axially along the rotating rod, a limiting disk is fixed on the rotating rod, and a limiting wheel that cooperates with the limiting disk is fixed on the movable block; it also includes a spiral groove formed on the circumferential outer wall of the rotating rod, and a limiting block that slides in engagement with the spiral groove is fixed on the inner wall of the movable sleeve.

[0012] As a further solution of the present invention: the multi-stage spray mechanism includes a water pump fixed on the supporting truss, one of the water pumps is connected to a first delivery pipe running through the cooling channel, and the end of the first delivery pipe is connected to a first nozzle.

[0013] As a further solution of the present invention: the multi-stage spray mechanism also includes a second delivery pipe connected to another of the water pumps, the end of the second delivery pipe is connected to a second nozzle, and guide plates symmetrically arranged for guiding water flow impact are fixed in the cooling channel.

[0014] As a further solution of the present invention: a fan is fixed on the supporting truss, and an air supply pipe connected to the cooling pipe is fixed on the fan.

[0015] Application of a multi-stage spray cooling molten monofilament spinning machine in the production of plastic-steel wires, including the multi-stage spray cooling molten monofilament spinning machine described above.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: This application can effectively and rapidly cool the plastic-steel wires through the combination of water cooling and air cooling. Specifically, when the plastic-steel wires enter the cooling channel, under the action of the multi-stage spray mechanism, multi-stage and multi-angle cooling treatment can be performed on them. When the plastic-steel wires enter the cooling pipe, cooling gas can be passed into the cooling pipe. At the same time, under the action of the pressure boosting and regulating mechanism, the distance between the air guide plates is changed to change the air flow area in the cooling pipe, so that the air pressure is continuously changed. By adjusting the air pressure, the cooling effect on the plastic-steel wires can be enhanced. The pressure boosting and regulating mechanism will also drive the follow-up turbulent flow mechanism to move, so as to continuously adjust the yaw angle of the air guide plates. By changing the gas flow direction, the action surface of the cooling gas can be increased to ensure that the plastic-steel wires are fully cooled. In this way, with the dual action of water cooling and air cooling, it can ensure that the plastic-steel wires are quickly cooled to the required temperature, thereby fully releasing the stress inside the fibers and enabling the plastic-steel wires to have better flexibility and physical properties.

[0017] By adjusting the distance between the four air guide plates, the reciprocating movement of the movable block in the horizontal direction can be synchronously controlled. This process enables the air guide plates to continuously change their yaw angles during movement, thereby changing the cooling position of the air on the plastic-steel wires. This design can not only perform turbulent flow operation on the air to keep the air flow in a disordered turbulent state all the time, thereby enhancing the cooling effect on the plastic-steel wires, but also increase the action area on the plastic-steel wires. At the same time, by controlling the air to act on the plastic-steel wires in an inclined tangential direction, it can ensure that the plastic-steel wires are fully cooled.

[0018] Through the guiding plate, the coolant after single spray can be converged and reused. It can not only realize that after single spray, the coolant is guided to act on the plastic-steel wires again for secondary cooling to enhance the cooling effect on the plastic-steel wires, but also guide the coolant to impact on other positions of the plastic-steel wires to increase the treatment area of the plastic-steel wires and ensure that the plastic-steel wires are fully spray-cooled by water. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Schematic structural diagram of an embodiment of a multi-stage spray cooling molten monofilament spinning machine; Figure 2 Schematic structural diagram of another angle in an embodiment of a multi-stage spray cooling molten monofilament spinning machine; Figure 3 Schematic cross-sectional structural diagram of the cooling channel and the cooling pipe in an embodiment of a multi-stage spray cooling molten monofilament spinning machine; Figure 4Schematic structural diagram of a multi-stage spraying mechanism in an embodiment of a melt monofilament spinning machine with multi-stage spraying cooling; Figure 5 Schematic connection diagram of a pressure boosting and regulating mechanism, a partial follow-up turbulence mechanism, a fan, and an air supply duct in an embodiment of a melt monofilament spinning machine with multi-stage spraying cooling; Figure 6 Schematic structural diagram of a pressure boosting and regulating mechanism and a partial follow-up turbulence mechanism in an embodiment of a melt monofilament spinning machine with multi-stage spraying cooling; Figure 7 Schematic connection diagram of a partial pressure boosting and regulating mechanism and a partial follow-up turbulence mechanism in an embodiment of a melt monofilament spinning machine with multi-stage spraying cooling; Figure 8 For Figure 7 Enlarged schematic structural diagram of part A in Figure 9 Schematic structural diagram of a follow-up turbulence mechanism and a wind guiding plate in an embodiment of a melt monofilament spinning machine with multi-stage spraying cooling; Figure 10 Exploded schematic structural diagram of a partial follow-up turbulence mechanism in an embodiment of a melt monofilament spinning machine with multi-stage spraying cooling; Figure 11 Exploded schematic structural diagram of a partial follow-up turbulence mechanism in an embodiment of a melt monofilament spinning machine with multi-stage spraying cooling.

[0020] In the figure: 1, support truss; 2, cooling channel; 3, water tank; 4, water pump; 5, first delivery pipe; 6, first spray head; 7, second delivery pipe; 8, second spray head; 9, guiding plate; 10, fan; 11, air supply duct; 12, cooling pipe; 1201, card slot; 13, support plate; 1301, sliding groove; 14, sliding block; 15, connecting plate; 16, cylinder; 17, movable ring; 18, connecting rod; 19, movable rod; 20, wind guiding plate; 21, movable block; 22, movable plate; 23, hinge rod; 24, guiding column; 25, spring; 26, limiting wheel; 27, rotating rod; 2701, spiral groove; 28, limiting disc; 29, movable sleeve; 2901, limiting block. Detailed implementation manners

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0022] In addition, the components in the present invention are referred to as "fixed to" or "disposed on" another component, and it can be directly on the other component or there can also be an intermediate component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for illustrative purposes and do not represent the only implementation.

[0023] Please refer to Figures 1 to 11 , in an embodiment of the present invention, a multi-stage spray cooling molten monofilament spinning machine includes: a support truss 1, and a cooling channel 2 and a water tank 3 fixed on the support truss 1. A cooling pipe 12 is connected to the end of the cooling channel 2; it further includes: a multi-stage spray mechanism disposed in the cooling channel 2 for performing multi-stage spray cooling actions on the plastic steel wire; a pressure boosting and regulating mechanism disposed in the cooling pipe 12. The pressure boosting and regulating mechanism includes a plurality of air guide plates 20 evenly distributed at equal intervals in a circle. A follow-up flow disturbing mechanism is provided on the cooling pipe 12. The pressure boosting and regulating mechanism can adjust the distance between the air guide plates 20 and adjust the yaw angle of the air guide plates 20 through the follow-up flow disturbing mechanism to perform a pressure boosting and flow disturbing action on the air in the cooling pipe 12.

[0024] Specifically, after the plastic steel wire completes the forming process, it can be introduced into the cooling channel 2 and gradually moved into the interior of the cooling pipe 12. When the plastic steel wire is in the cooling channel 2, the multi-stage spray mechanism will play its function and perform multi-stage and multi-angle cooling treatment on the plastic steel wire, so as to quickly cool down the plastic steel wire. When the plastic steel wire passes through the cooling channel 2 and enters the cooling pipe 12, cooling gas can be introduced into the cooling pipe 12 to perform air cooling treatment on the plastic steel wire. Under the action of the pressure boosting and regulating mechanism, the air guide plates 20 can move towards each other or away from each other, thereby changing the flow area of the cooling pipe 12, further adjusting the air pressure in the pipe, and increasing the impact force of the cooling gas on the plastic steel wire. At the same time, the pressure boosting and regulating mechanism will also drive the follow-up flow disturbing mechanism to operate. Under the action of the follow-up flow disturbing mechanism, the yaw angle of the air guide plates 20 will continuously change, thereby continuously adjusting the flow direction of the cooling gas and making the gas in the cooling pipe 12 present a turbulent state. To sum up, by changing the gas flow direction, the acting surface of the cooling gas can be increased to ensure that the plastic steel wire is fully cooled; by adjusting the air pressure, the cooling effect on the plastic steel wire can be enhanced. In this way, with the dual action of water cooling and air cooling, it can be ensured that the plastic steel wire is quickly cooled down to the required temperature, so as to fully release the stress inside the fiber and make the plastic steel wire have better flexibility and physical properties.

[0025] Please refer to Figures 1 - 3 、 Figure 5, a fan 10 is fixed on the support truss 1, and an air supply duct 11 communicating with the cooling pipe 12 is fixed on the fan 10.

[0026] Please refer to Figures 1 - 3 , Figures 5 - 7 , Figure 9 , the pressure boosting and regulating mechanism includes support plates 13 fixed on the circumferential outer wall of the cooling pipe 12 and arranged symmetrically. A plurality of sliding grooves 1301 are formed on the support plates 13 and are equidistantly distributed in a circumferential manner. A sliding block 14 is slidably installed in the sliding groove 1301; it also includes a connecting plate 15 fixed on the side wall of the sliding block 14. An activity rod 19 passing through the cooling pipe 12 and used for adjusting the distance between the air guide plates 20 is fixed on the connecting plate 15. The pressure boosting and regulating mechanism also includes a movable ring 17 slidably installed on the cooling pipe 12. A cylinder 16 fixedly connected to the movable ring 17 is fixed on the side wall of the cooling channel 2. A connecting rod 18 is hinged on the movable ring 17 and is used for converting the horizontal movement of the movable ring 17 into the vertical movement of the sliding block 14.

[0027] Specifically, the activity rod 19 is rotatably connected to the air guide plate 20. When the plastic steel wire is water-cooled, the cylinder 16 controls the movable ring 17 to be at the end of the stroke on the side far from the cooling channel 2, so as to control the maximum distance between the four sliding blocks 14 through the connecting rod 18, and the sliding block 14 is at the end of the stroke on the side of the sliding groove 1301 far from the cooling pipe 12. When the plastic steel wire is completed with water-cooling treatment, it will enter the cooling pipe 12. At this time, the fan 10 can be turned on, and the outside air is conveyed into the cooling pipe 12 through the air supply duct 11. The air supply duct 11 is arranged perpendicular to the cooling pipe 12. Therefore, the air conveyed by the air supply duct 11 will impact on the inner wall of the cooling pipe 12. Under the action of the impact force, the air is dispersed to increase the acting area of the air on the plastic steel wire; subsequently, under the action of the cylinder 16, the movable ring 17 is controlled to move towards the cooling channel 2 direction, so as to control the plurality of sliding blocks 14 to move towards the approaching direction through the connecting rod 18 and slide along the sliding groove 1301. Under the action of the sliding block 14, the connecting plate 15 moves towards the cooling pipe 12 direction, so as to control the air guide plates 20 to move towards the approaching direction through the activity rod 19. Under the action of the air guide plates 20, the ventilation area in the cooling pipe 12 is changed, so as to continuously change the air pressure of the air flowing through the air guide plates 20, so as to change the impact force of the gas on the plastic steel wire and enhance the cooling effect on the plastic steel wire. When the distance between the connecting plate 15 and the cooling pipe 12 reaches the minimum, the cylinder 16 controls the movable ring 17 to move towards the initial position. In this way, it can continuously control the distance between the air guide plates 20 to increase or decrease, so as to continuously adjust the air pressure in the cooling pipe 12, break the laminar flow state of the cooling gas, and cool the plastic steel wire through the turbulent state to ensure rapid and uniform cooling of the plastic steel wire.

[0028] The output power of the fan 10 can be adjusted according to the required cooling requirements to change the air flow rate and flow rate entering the cooling pipe 12. This is an application of the prior art and will not be elaborated in this application.

[0029] See also Figures 1 - 3 , Figures 5 - 11 The follow-up spoiler mechanism includes a plurality of slots 1201 formed on the outer wall of the cooling pipe 12 and distributed equidistantly around the circumference, a movable block 21 is slidably installed in the slot 1201, a movable plate 22 is fixed on the movable block 21, and a hinged rod 23 for adjusting the swing angle of the air guide plate 20 is hinged on the movable plate 22; and also includes a reset component and a driven component connected to the connecting plate 15 for controlling the reciprocating movement of the movable block 21 along the slot 1201, the reset component includes a guide column 24 fixed in the slot 1201 and passing through the movable block 21, and a sleeve on the guide column 24 A spring 25 is provided, and the two ends of the spring 25 are respectively in contact with the movable block 21 and the slot 1201, and the driven component includes a rotating rod 27 rotatably mounted on the cooling tube 12, a movable sleeve 29 is fixed on the connecting plate 15 and slides axially along the rotating rod 27, a limiting disk 28 is fixed on the rotating rod 27, and a limiting wheel 26 that abuts against the limiting disk 28 is fixed on the movable block 21; it also includes a spiral groove 2701 formed on the circumferential outer wall of the rotating rod 27, and a limiting block 2901 that slides and fits with the spiral groove 2701 is fixed on the inner wall of the movable sleeve 29.

[0030] It should be noted that the limiting disk 28 is arranged in the shape of a four-pointed star. In the initial state, the connecting plate 15 is at the end of the stroke in the direction away from the cooling pipe 12, so that the distance between the four air guide plates 20 is the largest. The movable sleeve 29 is at the end of the stroke in the direction away from the cooling pipe 12, so that the limiting block 2901 is at the end of the stroke on the side of the spiral groove 2701 away from the cooling pipe 12. At this time, one of the protruding ends of the limiting disk 28 abuts against the limiting wheel 26, so that the movable block 21 is at the end of the stroke in the direction away from the rotating rod 27, so that the compression amount of the spring 25 reaches the maximum. The movable block 21 will control the included angle between the air guide plate 20 at this height and the movable rod 19 to be the largest through the movable plate 22 and the hinge rod 23; when it is necessary to perform air cooling treatment on the plastic steel wire entering the cooling pipe 12, under the action of the cylinder 16, the connecting plate 15 makes a reciprocating motion in the direction close to or away from the cooling pipe 12. When the connecting plate 15 moves in the direction close to the cooling pipe 12, the movable rod 19 is used to control the plurality of air guide plates 20 to move in the direction of approaching each other. At the same time, the connecting plate 15 will also drive the movable sleeve 29 to move to control the limiting block 2901 to slide along the track of the spiral groove 2701. Under the action of the limiting block 2901 and the spiral groove 2701, the rotating rod 27 rotates, thereby driving the limiting disk 28 to move. The protruding end of the limiting disk 28 will separate from the limiting wheel 26. At this time, the spring 25 elastically releases and pushes the movable block 21 to move in the direction of the rotating rod 27 to drive the hinge rod 23 to move through the movable plate 22. Under the action of the hinge rod 23, the included angle between the air guide plate 20 and the movable rod 19 is reduced. At this time, the air guide plate 20 can reduce the conduction area of the cooling pipe 12 and increase the air pressure of the air flow. At the same time, when performing a yaw motion, it can continuously change the air guiding direction of the air to increase the treatment area and cooling rate of the plastic steel wire.

[0031] Subsequently, when the limiting wheel 26 moves to abut against the concave end of the limiting disk 28, it means that the yaw angle of the air guide plate 20 reaches the maximum. The limiting disk 28 continues to rotate to control the movable block 21 to move towards the initial position through the limiting wheel 26. Under the action of the hinge rod 23, the included angle between the air guide plate 20 and the movable rod 19 increases until the limiting wheel 26 moves to abut against the next protruding end of the limiting disk 28. At this height, the included angle between the air guide plate 20 and the movable rod 19 reaches the maximum. Repeat the above steps until the connecting plate 15 moves to the end of the stroke in the direction of the cooling pipe 12, the limiting block 2901 moves to the end of the stroke on the other side of the spiral groove 2701, and the rotating rod 27 just rotates one circle. In this way, during the whole process of the four air guide plates 20 moving towards each other or away from each other, the yaw angle of the air guide plate 20 is always in a changing state, so as to continuously adjust the air supply direction of the cooling pipe 12.

[0032] Preferably, by adjusting the spacing between the four air guide plates 20, the reciprocating movement of the movable block 21 in the horizontal direction can be synchronously controlled. In this process, the air guide plates 20 can continuously change their yaw angles during movement, thereby changing the cooling position of the air on the plastic-steel wire. This design can not only perform air turbulence operations, keep the air flow in a disordered turbulent state all the time, and then enhance the cooling effect on the plastic-steel wire, but also increase the acting area on the plastic-steel wire. At the same time, by controlling the air to act on the plastic-steel wire in an inclined tangential direction, it can ensure that the plastic-steel wire is cooled comprehensively.

[0033] Please refer to Figures 1 - 4 , the multi-stage spraying mechanism includes a water pump 4 fixed on the support truss 1. A first delivery pipe 5 passing through the cooling channel 2 is connected to one of the water pumps 4. A first spray head 6 is connected to the end of the first delivery pipe 5. Among them, the multi-stage spraying mechanism further includes a second delivery pipe 7 connected to the other water pump 4. A second spray head 8 is connected to the end of the second delivery pipe 7. Guide plates 9 for guiding the water flow to impact are symmetrically arranged and fixed in the cooling channel 2.

[0034] Furthermore, a return hole communicating with the water tank 3 is opened at the bottom of the cooling channel 2. The guide plate 9 can be divided into two sections, one is an inclined section and the other is an arc section, and the arc section is located at one end where the two guide plates 9 are close to each other. The first delivery pipe 5 is divided into two delivery ports symmetrically located on the side walls of the cooling channel 2, and the two delivery ports are respectively connected to the first spray head 6 for acting on the plastic-steel wire through the horizontal side surface with the coolant. The second delivery pipe 7 is divided into three delivery ports located at the top of the cooling channel 2, and these three delivery ports are respectively connected to the second spray head 8 for acting on the plastic-steel wire through the vertical direction with the coolant; Since the plastic-steel wire is in a high-temperature viscous flow state after being melt-extruded, it needs to be cooled to quickly reduce its temperature below the glass transition temperature, so as to complete the transition from the viscous flow state to the glass state and achieve solidification and shaping. The cooling process helps the plastic-steel wire to maintain its established shape and size during subsequent processing and use, and avoid problems such as softening and deformation due to excessive temperature.

[0035] In this regard, when the extruded plastic-steel wire enters the cooling channel 2, at this time, the water pump 4 works, and conveys the coolant in the water tank 3 to the first spray head 6 through the first delivery pipe 5, and sprays the coolant onto the surface of the plastic-steel wire from two directions of the plastic-steel wire through the first spray head 6 to perform the first spray cooling treatment on the plastic-steel wire. When the plastic-steel wire moves to the position where it cooperates with the second spray head 8, the water pump 4 can convey the coolant in the water tank 3 to the second delivery pipe 7, and spray the coolant onto the surface of the plastic-steel wire from the upper side of the plastic-steel wire through the second spray head 8. When the coolant impacts on the surface of the plastic-steel wire, heat exchange can be carried out to cool the plastic-steel wire. After the coolant impacts, it will splash around the plastic-steel wire and fall on the guiding plate 9. Since one section of the guiding plate 9 is inclined, the coolant will gradually flow towards the arc section after converging, until the coolant flows to the arc section, and under the action of its own inertia, it will continue to flow and break away from the guiding plate 9. Since the plastic-steel wire is between the two guiding plates 9, after the coolant breaks away from the guiding plate 9, it will impact on the surface of the plastic-steel wire again to cool the plastic-steel wire again. The treated coolant will fall to the bottom of the cooling channel 2 and flow back to the water tank 3 through the return holes, repeating the above steps, so as to realize the multi-stage spray treatment of the plastic-steel wire. During the cooling process, the molecular chain segments of the plastic-steel wire will gradually stop moving and crystallize, forming an ordered structure, thereby improving the strength and toughness of the material.

[0036] Preferably, the guiding plate 9 can converge and reuse the coolant after a single spray. It can not only guide the coolant to act on the plastic-steel wire again for secondary cooling after a single spray to enhance the cooling effect on the plastic-steel wire, but also guide the coolant to impact on other positions of the plastic-steel wire to increase the treatment area of the plastic-steel wire and ensure that the plastic-steel wire is comprehensively spray-cooled.

[0037] An application of a multi-stage spray cooling molten monofilament spinning machine in the production of plastic-steel wires, including the multi-stage spray cooling molten monofilament spinning machine described above.

[0038] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0039] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A multi-stage spray cooling melt-spinning machine, comprising: A support truss, and a cooling channel and a water tank fixed on the support truss, wherein the end of the cooling channel is connected to a cooling pipe; it is characterized in that it also includes: a multi-stage spray mechanism, which is arranged in the cooling channel, and is used to perform multi-stage spray cooling on the plastic steel wire; a boost control mechanism, which is arranged in the cooling pipe, and the boost control mechanism includes a plurality of wind guide plates equidistantly distributed in a circle, and a follow-up spoiler mechanism is arranged on the cooling pipe, and the boost control mechanism can adjust the spacing between the wind guide plates, and adjust the swing angle of the wind guide plates through the follow-up spoiler mechanism, so as to perform a boost spoiler action on the air in the cooling pipe.

2. A multi-stage spray cooling melt-spinning machine according to claim 1, characterized in that: The boost control mechanism includes a support plate fixed to the circumferential outer wall of the cooling tube and symmetrically arranged, and a plurality of slide grooves equidistantly distributed around the circumference are formed on the support plate, and a sliding block is slidably installed in the slide groove; it also includes a connecting plate fixed to the side wall of the sliding block, and a movable rod that passes through the cooling tube and is used to adjust the spacing between the air guide plates is fixed on the connecting plate.

3. A multi-stage spray cooling melt-spinning machine according to claim 2, characterized in that: The boost control mechanism also includes a movable ring slidably mounted on the cooling pipe, a cylinder fixedly connected to the movable ring is fixed to the side wall of the cooling channel, and a connecting rod is hinged on the movable ring for converting the horizontal movement of the movable ring into the vertical movement of the sliding block.

4. A multi-stage spray cooling melt-spinning machine according to claim 2, characterized in that: The follow-up spoiler mechanism includes a plurality of slots formed on the outer wall of the cooling pipe and distributed equidistantly around the circumference, a movable block is slidably installed in the slot, a movable plate is fixed on the movable block, and a hinged rod for adjusting the swing angle of the air guide plate is hinged on the movable plate; it also includes a reset component and a driven component connected to the connecting plate for controlling the reciprocating movement of the movable block along the slot.

5. A multi-stage spray cooling melt-spinning machine according to claim 4, characterized in that: The reset assembly comprises a guide column fixed in the slot and penetrating the movable block, a spring is sleeved on the guide column, and two ends of the spring are respectively in contact with the movable block and the slot.

6. A multi-stage spray cooling melt-spinning machine according to claim 4, characterized in that: The driven component includes a rotating rod rotatably mounted on the cooling tube, a movable sleeve sliding along the axial direction of the rotating rod is fixed on the connecting plate, a limiting disk is fixed on the rotating rod, and a limiting wheel cooperating with the limiting disk is fixed on the movable block; it also includes a spiral groove formed on the circumferential outer wall of the rotating rod, and a limiting block slidingly engaged with the spiral groove is fixed on the inner wall of the movable sleeve.

7. The multi-stage spray cooling melt-spinning machine according to claim 1, characterized in that: The multi-stage spray mechanism comprises a water pump fixed on the supporting truss, one of the water pumps is connected to a first delivery pipe penetrating the cooling channel, and the end of the first delivery pipe is connected to a first spray head.

8. A multi-stage spray cooling melt-spinning machine according to claim 7, characterized in that: The multi-stage spray mechanism also includes a second delivery pipe connected to another of the water pumps, the end of the second delivery pipe is connected to a second nozzle, and guide plates symmetrically arranged and used for guiding water flow impact are fixed in the cooling channel.

9. The multi-stage spray cooling melt-spinning machine according to claim 1, characterized in that: A fan is fixed on the supporting truss, and an air supply pipe connected with the cooling pipe is fixed on the fan.

10. Application of a multi-stage spray cooling melt-spinning machine in the production of plastic steel wire, characterized in that: A melt-spinning machine with multi-stage spray cooling comprising the machine described in any one of claims 1 to 9.

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