Spring production steel wire pretreatment straightening device

Abstract

The application provides a spring production steel wire pretreatment straightening device and relates to the technical field of steel wire straightening.The spring production steel wire pretreatment straightening device comprises a rack, a feeding end, a straightening mechanism and a cutting end are sequentially arranged on the rack, the straightening mechanism comprises a mounting frame, a shaft cylinder and a liquid inlet and outlet end rotary joint, two rows of straightening assemblies are arranged in the mounting frame, the two rows of straightening assemblies are staggered, the straightening assemblies and the liquid inlet and outlet end rotary joint are communicated, the straightening assembly comprises a straightening wheel, a liquid passage for liquid circulation is arranged in the straightening wheel, two ends of the liquid passage are symmetrically arranged, a plurality of V-shaped branch flow passages are uniformly and circumferentially communicated between the two ends of the liquid passage, the liquid inlet and outlet end rotary joint is used to make the cooling medium in the straightening wheel continuously flow, the flowing cooling medium dissipates the accumulated heat on the straightening wheel, the straightening wheel and the material to be straightened are prevented from being damaged due to heat, and the abrasion of the straightening wheel due to heat is reduced.

Description

Technical Field

[0001] This application relates to the field of steel wire straightening technology, and more specifically, to a pretreatment and straightening device for spring production steel wire. Background Technology

[0002] In spring production, the pretreatment and straightening of steel wire is a crucial step. If the steel wire has irregular shapes such as bending or twisting, it will lead to inaccurate dimensions, irregular shapes, and unstable mechanical properties in the produced springs. For example, springs made from bent steel wire may have uneven spirals, affecting the spring's elasticity and service life.

[0003] In existing technologies, pressure is used to straighten steel wire or other similar materials. During the straightening process, a certain pressure is applied to the material to be straightened by straightening rollers, and the straightening operation is achieved by the axial displacement of the material. During this process, the straightening rollers need to continuously roll and contact the material to be straightened, and a continuous friction effect is formed between the straightening rollers and the material to be straightened. This causes the straightening rollers to generate heat due to friction. At the same time, the faster the straightening speed, the more heat is generated on the straightening rollers. During continuous straightening, heat will accumulate at the contact point between the straightening rollers and the material to be straightened. This heat accumulation will cause the surface temperature of the material to be straightened (steel wire) to rise, affecting the mechanical properties of the material to be straightened. At the same time, heat accumulation will also accelerate the oxidation rate of the surface of the material to be straightened, reducing the quality of the material to be straightened. In addition, heat accumulation will also affect the service life of the straightening rollers. Long-term heat accumulation will cause metal fatigue, leading to cracks and other damage to the straightening rollers. Summary of the Invention

[0004] This application aims to at least solve one of the technical problems existing in the prior art. To this end, this application proposes a pretreatment and straightening device for spring production steel wire, including a frame. A feeding end, a straightening mechanism, and a cutting end are sequentially arranged along a straight direction on the frame. The material to be straightened enters sequentially from the feeding end, passes through the straightening mechanism for straightening, and is then cut by the cutting end. The feeding end is equipped with a conveying power mechanism that provides axial displacement power to the material to be straightened. The straightening mechanism is equipped with a rotational power mechanism that rotates itself to perform pressure straightening action on the material to be straightened. The straightening mechanism includes a mounting frame, two shaft cylinders, and two liquid inlet / outlet rotary joints. The two shaft cylinders are respectively connected to... The shaft connects to both ends of the mounting frame, and the two liquid inlet / outlet rotary joints are symmetrically sleeved on the two shaft cylinders; two rows of straightening components are provided inside the mounting frame, and the two rows of straightening components are staggered. The two rows of straightening components are connected to the two liquid inlet / outlet rotary joints. The straightening component includes a straightening wheel rotatably mounted on the mounting base. The mounting base is vertically connected to the mounting frame. The straightening wheel is provided with a channel for liquid flow. The liquid channel is arranged along the axial direction of the straightening wheel. The two ends of the liquid channel are symmetrically arranged, and multiple V-shaped branch channels are uniformly connected circumferentially between the two ends of the liquid channel.

[0005] Preferably, the mounting frame is symmetrically threaded with multiple calibration screws.

[0006] Preferably, the shaft is rotatably mounted on a bearing housing, and the bearing housing is fixedly connected to the frame.

[0007] Preferably, the two liquid inlet / outlet rotary joints are of the same size. Each liquid inlet / outlet rotary joint includes a fixed cylinder rotatably sleeved on the shaft cylinder. One end of the fixed cylinder is sealed and rotatably connected to a rotating cylinder. The rotating cylinder is fixed to the mounting frame. An injection nozzle is connected to the side wall of the fixed cylinder. An outlet nozzle is connected to the end of the rotating cylinder. The outlet nozzle passes through the mounting frame and is connected to the straightening assembly.

[0008] Preferably, an adjusting screw is fixedly connected to the mounting base, the adjusting screw slides through the mounting frame, and nuts are threadedly connected to the adjusting screw on both the inner and outer sides of the mounting frame; two infusion nozzles are symmetrically connected to the mounting base, and the two infusion nozzles are respectively connected to two liquid inlet / outlet rotary joints.

[0009] Preferably, a bearing shaft is fixedly connected to the mounting base. The bearing shaft is provided with an L-shaped inlet channel and an outlet channel. The inlet end of the inlet channel and the outlet end of the outlet channel are respectively connected to two infusion nozzles. The outlet end of the inlet channel and the inlet end of the outlet channel are respectively located on the side wall of the bearing shaft. A convex ring is provided at the center of the side wall of the bearing shaft. Grooves are symmetrically provided at both ends of the side wall of the bearing shaft. A sealing ring is sealed and embedded in the groove.

[0010] Preferably, the straightening wheel has a concave portion circumferentially arranged on its sidewall, the concave portion having a V-shaped cross-section. A blocking ring is provided at the center of the inner side of the straightening wheel, the blocking ring and the convex ring being slidably connected in a sealing manner. The straightening wheel has a liquid flow channel consisting of end liquid cavities and an axial channel, wherein the end liquid cavities are symmetrically arranged within the straightening wheel, and the axial channel is a V-shaped branch channel. Multiple axial channels are circumferentially and uniformly connected to two end liquid cavities, the V-shape of the axial channel matching the V-shape of the concave portion. The inner side of the straightening wheel has two sets of first radial through holes symmetrically arranged, each of the two sets of first radial through holes communicating with one of the two end liquid cavities. The first radial through holes are circumferentially and uniformly connected to the end liquid cavities. Two sets of positioning holes are symmetrically arranged at both ends of the straightening wheel, the positioning holes being axially and uniformly arranged.

[0011] Preferably, two rotating components of the same size are symmetrically arranged at both ends of the bearing shaft. The rotating components are sealed and rotatedly sleeved on the bearing shaft, and the rotating components are sealed and fixedly inserted into the straightening wheel.

[0012] Preferably, the rotating component includes a protrusion and a cylindrical body. The protrusion extends beyond the end of the straightening wheel, and the cylindrical body is sealed and inserted into the straightening wheel. The inner side of the protrusion is provided with a sealing groove that matches the sealing ring. The end of the protrusion is circumferentially and uniformly fixed with a plurality of positioning bolts that are inserted into the positioning holes one by one. The cylindrical body is hollow with one end open, and the open end of the cylindrical body does not cover the outlet end of the liquid inlet channel and the inlet end of the liquid outlet channel.

[0013] Preferably, a drainage cavity is provided axially inside the cylinder, the drainage cavity is open at one end away from the protrusion, and a plurality of second radial through holes are uniformly arranged circumferentially at the end of the drainage cavity facing the protrusion, the plurality of second radial through holes and the plurality of first radial through holes correspond one-to-one and are connected.

[0014] The beneficial effects of this invention are:

[0015] 1. During the straightening process, coolant and related liquid media are supplied into the straightening wheel through the rotary joint at the liquid inlet and outlet, so that the cooling medium flows continuously inside the straightening wheel. The heat accumulated on the straightening wheel is dissipated through the flowing cooling medium, which prevents the straightening wheel and the material to be straightened from being damaged by heat, and at the same time reduces the wear of the straightening wheel caused by heat.

[0016] 2. The liquid channels at both ends of the straightening wheel are symmetrically arranged, and the middle part of the liquid channel is V-shaped and circumferentially connected to both ends, so that the cooling medium is distributed as evenly as possible in the straightening wheel, avoiding little or no cooling medium flow in a certain V-shaped middle channel, and improving the heat dissipation effect on the straightening wheel.

[0017] 3. The design of the rotary joint at the liquid inlet and outlet ends ensures that the cooling medium can still enter and exit the straightening wheel during the rotation of the mounting frame, facilitating the flow of the cooling medium in and out.

[0018] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of a spring production steel wire pretreatment and straightening equipment according to an embodiment of this application;

[0021] Figure 2 This is a partial structural schematic diagram of a spring production steel wire pretreatment and straightening equipment according to an embodiment of this application;

[0022] Figure 3 This is a schematic diagram of the straightening mechanism according to an embodiment of this application;

[0023] Figure 4 This is a side view structural diagram of the straightening mechanism according to an embodiment of this application;

[0024] Figure 5 This is a schematic diagram of the straightening component and its internal structure according to an embodiment of this application;

[0025] Figure 6 This is an exploded view of the straightening component and its internal structure according to an embodiment of this application;

[0026] Figure 7 This is a schematic diagram of the internal structure of the straightening component according to an embodiment of this application;

[0027] Figure 8 This is an exploded view of the cross-sectional view of the straightening component according to an embodiment of this application;

[0028] Figure 9 This is a schematic diagram showing the structure and position of the flow guiding component according to an embodiment of this application;

[0029] Figure 10 This is an exploded view of the structure of the flow guiding component according to an embodiment of this application;

[0030] Figure 11 This is a partial structural schematic diagram of the impurity removal component according to an embodiment of this application;

[0031] Figure 12 According to the embodiments of this application Figure 11 Enlarged diagram of A in the middle;

[0032] Figure 13 This is a partial structural schematic diagram of the impurity removal component according to an embodiment of this application;

[0033] Figure 14 According to the embodiments of this application Figure 13 Enlarged diagram of B in the diagram.

[0034] Icons: 1. Frame; 2. Feeding end; 201. Conveying power mechanism; 3. Straightening mechanism; 301. Rotating power mechanism; 31. Mounting frame; 311. Calibration screw; 32. Shaft cylinder; 321. Bearing seat; 33. Liquid inlet / outlet rotary joint; 331. Fixed cylinder; 332. Rotating cylinder; 333. Injection nozzle; 334. Discharge nozzle; 4. Cut-off end; 5. Straightening assembly; 51. Adjusting screw; 52. Mounting seat; 521. Infusion nozzle; 53. Bearing shaft; 531. Inlet channel; 532. Outlet channel; 533. Convex ring; 534. Groove; 535. Sealing ring; 54. Straightening wheel; 541. Concave surface; 542. Blocking ring; 5 43. End-part liquid chamber; 544. Axial channel; 545. First radial through hole; 546. Positioning hole; 55. Rotating component; 551. Protrusion; 552. Cylinder; 553. Drainage chamber; 554. Second radial through hole; 555. Positioning bolt; 556. Sealing groove; 6. Flow guiding assembly; 61. Spiral groove; 62. Spiral blade; 7. Impurity removal assembly; 71. Impurity removal chamber; 711. Impurity removal cavity; 712. Inlet axial hole; 713. Outlet annular through groove; 714. Drain nozzle; 72. Blocking ring; 721. Sealing ring; 73. Filter ring; 74. Axial inlet channel; 741. Inclined channel; 742. Axial outlet channel; 743. Limiting groove. Detailed Implementation

[0035] The technical solutions in the embodiments of this application will now be described with reference to the accompanying drawings.

[0036] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, not all of them. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0037] Example 1, as Figures 1-14 As shown, a spring production steel wire pretreatment straightening device according to an embodiment of this application includes a frame 1. The frame 1 is provided with a feeding end 2, a straightening mechanism 3 and a cutting end 4 arranged sequentially along a straight direction. The material to be straightened enters from the feeding end 2, passes through the straightening mechanism 3 for straightening and is then cut by the cutting end 4. The feeding end 2 is provided with a conveying power mechanism 201 that provides axial displacement power to the material to be straightened. The straightening mechanism 3 is provided with a rotating power mechanism 301 that rotates itself to perform pressure straightening action on the material to be straightened.

[0038] It should be noted that in the specific embodiments of this application, the feeding end 2, the conveying power mechanism 201, the rotating power mechanism 301, and the cutting end 4 are prior art. For details, please refer to paragraphs 0021-0034 of the specification of the patent "A Spring Steel Wire Straightening Machine" with publication number CN219881154U. In this application, the feeding end 2 and the conveying power mechanism 201 are only used to provide axial displacement to the material (steel wire) to be straightened, the rotating power mechanism 301 is only used as the power source to rotate the straightening mechanism 3, and the cutting end 4 is only used to cut the straightened material. Their specific structures are not specifically limited here.

[0039] Specifically, such as Figure 3 and Figure 4 As shown, the straightening mechanism 3 includes a mounting frame 31, two shaft cylinders 32, and two liquid inlet / outlet rotary joints 33. The two shaft cylinders 32 are coaxially connected to both ends of the mounting frame 31, and the two liquid inlet / outlet rotary joints 33 are symmetrically sleeved on the two shaft cylinders 32. The mounting frame 31 is symmetrically threaded with multiple calibration screws 311. It should be noted that the shape of the mounting frame 31 is adjusted by tightening or loosening the nuts at both ends of the calibration screws 311 to avoid deformation of the mounting frame 31 under stress and to prevent the axis of the mounting frame 31 from shifting, swaying, jumping, etc. during rotation, which would cause the straightening work to fail.

[0040] The mounting frame 31 contains two rows of straightening components 5, which are staggered. Figure 3 and Figure 4 As shown, it can be understood that the material to be straightened passes between the two rows of straightening components 5. The four straightening components 5 at both ends abut against the material to be straightened, and the four in the middle press against the material to be straightened, forming a slight S-shape. In this way, after the material to be straightened passes through the two rows of straightening components 5, the bends on it will be straightened by pressure. The specific working principle is obvious to those skilled in the art and will not be described in detail here.

[0041] The two rows of straightening components 5 are connected to the two liquid inlet / outlet rotary joints 33. It should be noted that, in the specific embodiments of this application, the two rows of straightening components 5 can be connected in series by hoses, or they can be connected in parallel by hoses alone and liquid inlet / outlet rotary joints 33.

[0042] The shaft cylinder 32 is rotatably mounted on the bearing seat 321, and the bearing seat 321 is fixed to the frame 1. It should be noted that the shaft center of the shaft cylinder 32 is hollow so that the material to be straightened can pass through, which plays a guiding role for the material to be straightened and fixes the shaft center.

[0043] In a specific embodiment of this application, the two liquid inlet / outlet rotary joints 33 are of the same size. Specifically, the liquid inlet / outlet rotary joint 33 includes a fixed cylinder 331 rotatably sleeved on the shaft cylinder 32. One end of the fixed cylinder 331 is rotatably connected to a rotating cylinder 332. The rotating cylinder 332 is fixed to the mounting frame 31. An inlet nozzle 333 is connected to the side wall of the fixed cylinder 331. An outlet nozzle 334 is connected to the end of the rotating cylinder 332. The outlet nozzle 334 passes through the mounting frame 31 and connects to the straightening assembly 5. It can be understood that the rotating cylinder... 332 rotates with the mounting frame 31. The fixed cylinder 331 is connected to the cooling medium input device through the injection nozzle 333. It should be noted that the fixed cylinder 331 can be fixed to the outer ring of the bearing housing 321 by existing technology. That is, the fixed cylinder 331 remains stationary while the rotating cylinder 32, the rotating cylinder 332 and the mounting frame 31 rotate. In addition, since the two liquid inlet and outlet rotary joints 33 are symmetrically arranged, the injection nozzle 333 on the other end of the liquid inlet and outlet rotary joint 33 is the liquid output end and the outlet nozzle 334 is the liquid input end.

[0044] like Figures 5-8 As shown, the straightening assembly 5 includes a straightening wheel 54 rotatably mounted on a mounting base 52. The mounting base 52 is vertically connected to the mounting frame 31. The straightening wheel 54 is provided with a channel for liquid flow. The liquid channel is arranged along the axial direction of the straightening wheel 54. The two ends of the liquid channel are symmetrically arranged. Multiple V-shaped branch channels are uniformly connected circumferentially between the two ends of the liquid channel.

[0045] Specifically, an adjusting screw 51 is fixedly connected to the mounting base 52. The adjusting screw 51 slides through the mounting frame 31. Nuts are threadedly connected to the adjusting screw 51 on both the inner and outer sides of the mounting frame 31. Thus, by turning the two nuts, the adjusting screw 51 can be axially displaced relative to the mounting frame 31, so that the straightening wheel 54 can move up and down to meet or tighten materials of different thicknesses. Two infusion nozzles 521 are symmetrically connected to the mounting base 52. The two infusion nozzles 521 are respectively connected to two liquid inlet and outlet rotary joints 33, which can be connected through hoses.

[0046] Furthermore, a bearing shaft 53 is fixedly connected to the mounting base 52. The bearing shaft 53 has an L-shaped inlet channel 531 and an outlet channel 532. The inlet end of the inlet channel 531 and the outlet end of the outlet channel 532 are respectively connected to two infusion nozzles 521. The outlet end of the inlet channel 531 and the inlet end of the outlet channel 532 are respectively located on the side wall of the bearing shaft 53. Figure 8 As shown, the two L-shaped liquid inlet channels 531 and liquid outlet channels 532 are preferably arranged in opposite directions to extend to a section of the side wall of the bearing shaft 53. This can enhance the strength of the bearing shaft 53 while preventing the center of gravity of the bearing shaft 53 from becoming unstable. A convex ring 533 is provided in the middle of the side wall of the bearing shaft 53, and grooves 534 are symmetrically provided at both ends of the side wall of the bearing shaft 53. A sealing ring 535 is sealed and embedded in the groove 534 to ensure the sealing between the bearing shaft 53 and the straightening wheel 54.

[0047] Furthermore, the straightening wheel 54 has a concave surface 541 circumferentially provided on its side wall. The cross-section of the concave surface 541 is V-shaped, which facilitates a certain clamping effect on the material to be straightened and also facilitates the straightening operation of the material to be straightened.

[0048] Among them, a blocking ring 542 is provided at the center of the inner side of the straightening wheel 54, and the blocking ring 542 and the convex ring 533 are connected in a sealed sliding connection, such as Figure 7 and Figure 8As shown, the blocking ring 542 and the convex ring 533 can divide the chamber formed between the straightening wheel 54 and the bearing shaft 53 into two independent chambers, forcibly guiding the liquid flow. The straightening wheel 54 is provided with end liquid chambers 543 and axial channels 544 for liquid flow. The end liquid chambers 543 are symmetrically arranged in the straightening wheel 54. It should be noted that the end liquid chambers 543 can temporarily store and divert the cooling medium. The axial channels 544 are V-shaped branch channels. Multiple axial channels 544 are circumferentially and uniformly connected to the two end liquid chambers 543. It should be noted that the multiple axial channels 544 are distributed on the outer side of the end liquid chambers 543. The V-shape of the axial channels 544 matches the V-shape of the concave part 541. Two sets of first radial through holes 545 are symmetrically arranged on the inner side of 54. The two sets of first radial through holes 545 are respectively connected to two end liquid cavities 543. The first radial through holes 545 are uniformly connected to the end liquid cavities 543 in the circumferential direction. It should be noted that after the cooling medium enters one of the end liquid cavities 543 from the inlet end, the straightening wheel 54 rotates under the action of the axial displacement of the material to be corrected. Therefore, the cooling medium will be rushed into multiple axial channels 544 by centrifugal force and enter the end liquid cavity 543 at the other end. The multiple V-shaped axial channels 544 are uniformly distributed in the circumference and are adapted to the V-shape of the concave surface 541. Therefore, they will cool and remove the heat generated on the straightening wheel 54, thereby reducing the heat accumulation on the straightening wheel 54.

[0049] The straightening wheel 54 has two sets of positioning holes 546 symmetrically arranged at both ends. The positioning holes 546 are evenly arranged axially to facilitate the fixing and positioning of other components.

[0050] In a specific embodiment of this application, two rotating parts 55 of the same size are symmetrically arranged at both ends of the bearing shaft 53. The rotating parts 55 are sealed and rotatedly sleeved on the bearing shaft 53, and the rotating parts 55 are sealed and fixedly inserted into the straightening wheel 54. Thus, it can be seen that the straightening wheel 54 and the rotating parts 55 are fixed together, and the rotating parts 55 and the bearing shaft 53 are sealed and rotated together.

[0051] The rotating component 55 includes a protrusion 551 and a cylindrical body 552. The protrusion 551 extends from the end of the straightening wheel 54, and the cylindrical body 552 is sealed and inserted into the straightening wheel 54. The inner side of the protrusion 551 is provided with a sealing groove 556 that matches the sealing ring 535. The end of the protrusion 551 is circumferentially fixed with a plurality of positioning bolts 555 that are inserted into the positioning holes 546 one by one. The cylindrical body 552 is hollow with one end open. The open end of the cylindrical body 552 does not cover the outlet end of the liquid inlet channel 531 and the inlet end of the liquid outlet channel 532. Thus, through the one-to-one insertion relationship between the positioning bolts 555 and the positioning holes 546, the rotating component 55 is positioned and inserted into the straightening wheel 54. The cylindrical body 552 does not cover the outlet end of the liquid inlet channel 531 and the inlet end of the liquid outlet channel 532, so that a chamber for liquid diversion is formed between the straightening wheel 54 and the bearing shaft 53.

[0052] The cylinder 552 contains an axially arranged drainage cavity 553. The drainage cavity 553 opens at one end away from the protrusion 551. Multiple second radial through holes 554 are evenly arranged circumferentially at the end of the drainage cavity 553 facing the protrusion 551. These multiple second radial through holes 554 correspond one-to-one with and are connected to multiple first radial through holes 545. Thus, the cooling medium enters through the liquid inlet / outlet rotary joint 33 at one end, passes through a liquid inlet nozzle 521 on the mounting base 52, and enters the liquid inlet channel 531. Then, the cooling medium passes through the liquid deflection cavity between the straightening wheel 54 and the bearing shaft 53. The liquid enters the drainage chamber 553 on this side, and then enters the end portion liquid chamber 543 at this end through the second radial through hole 554 and the corresponding first radial through hole 545 on this side. After passing through multiple V-shaped axial channels 544, it enters the end portion liquid chamber 543 at the other end. Then, it enters the drainage chamber 553 on the other side through the corresponding first radial through hole 545 and second radial through hole 554. Then, it enters the outlet channel 532 through the liquid diversion chamber on this side, and then flows out of the straightening assembly 5 through another inlet 521. The heat accumulated on the straightening wheel 54 is carried away by the flow of the cooling medium.

[0053] In the relevant technology, in this spring production steel wire pretreatment straightening equipment, the straightening wheel 54 is rotatably connected to the bearing shaft 53 via the rotating part 55. Under long-term use, wear is inevitable between the rotating part 55 and the bearing shaft 53. If the debris generated by the wear accumulates on the inside of the straightening wheel 54, it will aggravate the wear between the rotating part 55 and the bearing shaft 53. Moreover, the contact area between the cylinder 552 part of the rotating part 55 and the bearing shaft 53 is large, and it will generate a certain amount of heat during rotation. Although the cooling medium will carry away some of the heat when it flows into the drainage cavity 553, the full-coverage contact will inevitably aggravate the heat generation, and the accumulation of heat will aggravate the wear between the rotating part 55 and the bearing shaft 53.

[0054] Example 2, according to some embodiments of this application, such as Figure 5 , Figure 9 and Figure 10 As shown, a flow guiding component 6 is provided axially inside the cylinder 552. The flow guiding component 6 includes a spiral groove 61 and a spiral blade 62. The spiral groove 61 is provided on one side of the cylinder 552 that is attached to the bearing shaft 53, and the spiral blade 62 is provided inside the flow guiding cavity 553.

[0055] The spiral groove 61 extends the drainage cavity 553 to the side wall of the bearing shaft 53, thus preventing the cylinder 552 and the bearing shaft 53 from forming a full-coverage state, reducing the contact area between them, and allowing the cooling medium to contact the side wall of the bearing shaft 53 through the spiral groove 61.

[0056] The spiral groove 61 and the spiral blade 62 are arranged alternately, and the spiral blade 62 is fixed to the cavity wall of the drainage cavity 553. The spiral groove 61 and the spiral blade 62 have the same spiral direction and pitch.

[0057] Therefore, when the cooling medium flows within the drainage cavity 553, firstly, the spiral blades 62 reduce the flow space of the cooling medium, increasing its flow rate. Simultaneously, the spiral design of the spiral blades 62 guides the cooling medium, extending its flow path within the drainage cavity 553. This allows the cooling medium to better carry away the heat accumulated in the rotating component 55. Furthermore, the design of the spiral grooves 61 further increases the flow path of the cooling medium within the drainage cavity 553. Since the volume of the spiral grooves 61 is significantly smaller than that of the drainage cavity 553, the flow rate of the cooling medium within them is even faster. The cooling medium can better carry away the heat generated between the rotating component 55 and the bearing shaft 53 through the spiral grooves 61. At the same time, the spiral grooves 61 reduce the distance between the rotating component 55 and the bearing shaft 53. The increased contact area between the bearing shafts 53 further reduces the friction between the rotating part 55 and the bearing shaft 53. The increased flow velocity and fixed flow direction within the entire drainage cavity 553 allow the cooling medium to carry away the wear debris during its flow, which is then discharged along the flow path from the infusion nozzle 521 at the output end of the mounting base 52. In the specific embodiment of this application, it should be noted that the multiple straightening components 5 and the two liquid inlet / outlet rotary joints 33 are preferably connected in parallel. This avoids the wear debris in the previous straightening component 5 being carried by the liquid flow to the next straightening component 5, preventing excessive debris accumulation in the straightening component 5 at the rear end of the flow direction, which would affect the flow of the cooling medium and even the normal rotation of the straightening wheel 54 on the bearing shaft 53.

[0058] In related technologies, a spring production wire pretreatment straightening device utilizes liquid flow to carry away wear debris formed between the rotating component 55 and the bearing shaft 53 during the flow process, which can reduce wear between the rotating component 55 and the bearing shaft 53 and extend their service life. However, in the flow path within the straightening assembly 5, the cooling medium needs to enter the guide cavity 553 from the end liquid chamber 543 before flowing out of the straightening assembly 5. During this process, debris is easily formed in the liquid diversion chamber formed between the inlet of the guide cavity 553, the inside of the straightening wheel 54, and the bearing shaft 53. If the debris is not treated, it will affect the normal use of the bearing shaft 53 and the rotating component 55.

[0059] Example 3, according to some embodiments of this application, such as Figure 5 , Figure 6 , Figures 11-14 As shown, the straightening wheel 54 is coaxially connected to the liquid outlet end (liquid outlet end) with a cleaning component 7. The cleaning component 7 includes a cleaning chamber 71 coaxially connected to the straightening wheel 54. A blocking ring 72 is coaxially fixed to the end of the cleaning chamber 71. The blocking ring 72 is slidably inserted into the end liquid cavity 543. A filter ring 73 is coaxially arranged inside the cleaning chamber 71. An axial liquid inlet channel 74 communicating with the cleaning chamber 71 is provided at the end of the straightening wheel 54.

[0060] The impurity removal chamber 71 is equipped with an impurity removal cavity 711. Multiple axial inlet holes 712 are evenly arranged circumferentially on one end of the impurity removal chamber 71 facing the straightening wheel 54, and an annular outlet groove 713 is coaxially arranged. The multiple axial inlet holes 712 are located on the outside of the blocking ring 72, and the annular outlet groove 713 is located on the inside of the blocking ring 72, so that the liquid inlet and outlet of the impurity removal chamber 71 are separated, which facilitates the flow of the cooling medium. The filter ring 73 is located between the multiple axial inlet holes 712 and the annular outlet groove 713. A drain nozzle 714 is provided on the side wall of the impurity removal chamber 711. The drain nozzle 714 is connected to the impurity removal cavity 711, which facilitates the removal of debris in the impurity removal cavity 711 through the drain nozzle 714.

[0061] It should be noted that the filter ring 73 is preferably detachably installed inside the impurity removal chamber 711 to facilitate the anti-clogging treatment of the filter ring 73 in the later stage. Specifically, the end of the impurity removal chamber 71 away from the straightening wheel 54 can be set with a structure with a sealing cover to facilitate the removal of the filter ring 73 from the impurity removal chamber 711.

[0062] Specifically, the end of the blocking ring 72 is sealed and abuts against the end of the end portion liquid cavity 543 away from the impurity removal chamber 71; sealing rings 721 are coaxially arranged on the inner and outer sides of the blocking ring 72. It can be understood that after the impurity removal chamber 71 is installed on the straightening wheel 54, the end portion liquid cavity 543 on the liquid outlet side of the straightening wheel 54 is blocked by the blocking ring 72, forming a blocking effect. At this time, the cooling medium can only enter the impurity removal chamber 71 from the axial liquid inlet channel 74.

[0063] Furthermore, the axial liquid inlet channel 74 includes an inclined channel 741, an axial liquid outlet channel 742, and a limiting groove 743. The inclined channel 741 is circumferentially and evenly arranged at the end of the straightening wheel 54. The inclined channel 741 is connected to the connection between the end liquid cavity 543 and the axial channel 544. The inclined channel 741 is radially expanded and inclined along the axial direction from the end liquid cavity 543 to the impurity removal chamber 71. The inclined channel 741 and the liquid inlet axial hole 712 correspond one-to-one and are connected. Thus, the liquid flow of the cooling medium will enter the impurity removal chamber 711 from the inclined channel 741. The rotating straightening wheel 54 uses centrifugal force to prevent debris from accumulating in the end liquid cavity 543 at the liquid outlet end (the debris will follow the liquid flow into the inclined channel 741 under the action of centrifugal force and eventually enter the impurity removal chamber 711).

[0064] Axial liquid outlet channels 742 are evenly arranged circumferentially at the ends of straightening wheels 54. Axial liquid outlet channels 742 are connected to end liquid chambers 543 and liquid outlet annular grooves 713 respectively. Limiting grooves 743 are arranged between inclined channels 741 and axial liquid outlet channels 742. Limiting grooves 743 are connected to end liquid chambers 543. Blocking rings 72 are sealed and inserted into limiting grooves 743. Two annular grooves that are coaxially arranged in limiting grooves 743 and are adapted to seal rings 721. This forms a sealed connection between the impurity removal chamber 71 and straightening wheels 54, while also providing a certain positioning function for the impurity removal chamber 71.

[0065] Understandably, by sealing the end portion liquid cavity 543 with the blocking ring 72 and abutting against it, the end portion liquid cavity 543 is divided into sections. The coolant flows from the end portion liquid cavity 543 located outside the blocking ring 72 to the impurity removal cavity 711. After being filtered by the filter ring 73, the coolant flows from the end portion liquid cavity 543 located inside the blocking ring 72 to the drainage cavity 553 on the liquid output side. In this way, debris accumulation can be avoided in the liquid diversion chamber formed between the inlet of the drainage cavity 553 on the liquid output side, the inside of the straightening wheel 54, and the bearing shaft 53.

[0066] In practical use, the cooling medium carrying debris flows from the inlet end of the straightening wheel 54 through multiple axial channels 544 to the end portion liquid cavity 543 in the outlet end direction. Because the blocking ring 72 is sealed and inserted into the limiting groove 743 and abuts against the end portion liquid cavity 543 on this side, the end portion liquid cavity 543 on this side is segmented. The cooling medium can only flow from multiple inclined channels 741 connecting the end portion liquid cavity 543 and the axial channels 544 to the impurity removal chamber 711. After the cooling medium carrying debris is filtered by the filter ring 73 in the impurity removal chamber 711, it enters the end portion liquid cavity 543 located inside the blocking ring 72 through the axial outlet channel 742, and finally exits from the liquid outlet side. The fluid flows from the flow chamber 553 to the infusion nozzle 521 at this end and out of the straightening wheel 54. The debris intercepted by the filter ring 73 will be temporarily stored in the cavity of the impurity removal chamber 711 located outside the filter ring 73. After the equipment is shut down, the temporarily stored debris can be discharged through the drain nozzle 714. Alternatively, the debris in the impurity removal chamber 711 can be removed when the filter ring 73 is disassembled. It can be understood that the design of the inlet and outlet of the liquid in the impurity removal chamber 711 (the inlet is outside the filter ring 73 and the outlet is inside the filter ring 73) can utilize the centrifugal force generated during the rotation of the straightening wheel 54 to further improve the filtration effect of the cooling medium when passing through the filter ring 73 (centrifugal force causes the debris to move radially outward, while the liquid flow moves radially inward, further improving the separation effect of the two).

[0067] It should be noted that the specific models and specifications of the feeding end 2, conveying power mechanism 201, rotating power mechanism 301, calibration screw 311, bearing seat 321, cutting end 4, adjusting screw 51 and sealing ring 535 need to be selected and determined according to the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it will not be described in detail.

[0068] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A spring production steel wire pretreatment straightening device, comprising a frame (1), wherein a feeding end (2), a straightening mechanism (3), and a cutting end (4) are sequentially arranged along a straight direction on the frame (1), the material to be straightened sequentially enters from the feeding end (2), passes through the straightening mechanism (3) for straightening, and is then cut by the cutting end (4), wherein the feeding end (2) is provided with a conveying power mechanism (201) for providing axial displacement power to the material to be straightened, and the straightening mechanism (3) is provided with a rotating power mechanism (301) for rotating itself to perform pressure straightening action on the material to be straightened, characterized in that: The straightening mechanism (3) includes a mounting frame (31), two shaft cylinders (32) and two liquid inlet / outlet rotary joints (33). The two shaft cylinders (32) are coaxially connected to both ends of the mounting frame (31), and the two liquid inlet / outlet rotary joints (33) are symmetrically sleeved on the two shaft cylinders (32). The mounting frame (31) is provided with two rows of straightening components (5), which are staggered. The two rows of straightening components (5) are connected to the two liquid inlet and outlet rotary joints (33). The straightening component (5) includes a straightening wheel (54) rotatably mounted on the mounting base (52). The mounting base (52) is vertically connected to the mounting frame (31). The straightening wheel (54) is provided with a channel for liquid flow. The liquid channel is arranged along the axial direction of the straightening wheel (54). The two ends of the liquid channel are symmetrically arranged. Multiple V-shaped branch channels are uniformly connected circumferentially between the two ends of the liquid channel. An adjusting screw (51) is fixedly connected to the mounting base (52). The adjusting screw (51) slides through the mounting frame (31). Nuts are threadedly connected to the adjusting screw (51) on both the inner and outer sides of the mounting frame (31). Two infusion nozzles (521) are symmetrically connected to the mounting base (52). The two infusion nozzles (521) are respectively connected to two liquid inlet / outlet rotary joints (33). A bearing shaft (53) is fixedly connected to the mounting base (52). An L-shaped inlet channel (531) and an outlet channel (532) are respectively provided inside the bearing shaft (53). The inlet end of the inlet channel (531) and the outlet end of the outlet channel (532) are respectively connected to two infusion nozzles (521). The outlet end of the inlet channel (531) and the inlet end of the outlet channel (532) are respectively provided on the side wall of the bearing shaft (53). A convex ring (533) is provided at the center of the side wall of the bearing shaft (53). Grooves (534) are symmetrically provided at both ends of the side wall of the bearing shaft (53). A sealing ring (535) is sealed and embedded in the groove (534). The straightening wheel (54) has a concave portion (541) circumferentially arranged on its sidewall. The cross-section of the concave portion (541) is V-shaped. A blocking ring (542) is arranged at the center of the inner side of the straightening wheel (54). The blocking ring (542) and the convex ring (533) are sealed and slidably connected. The straightening wheel (54) has a liquid flow channel consisting of an end portion liquid cavity (543) and an axial channel (544). The end portion liquid cavities (543) are symmetrically arranged in the straightening wheel (54). The axial channel (544) is a V-shaped branch channel. Multiple axial channels (54) 4) The two end portion liquid cavities (543) are uniformly connected circumferentially. The V-shape of the axial channel (544) and the V-shape of the concave surface (541) are adapted to each other. The inner side of the straightening wheel (54) is symmetrically provided with two sets of first radial through holes (545). The two sets of first radial through holes (545) are respectively connected to the two end portion liquid cavities (543). The first radial through holes (545) are uniformly connected circumferentially to the end portion liquid cavities (543). The two ends of the straightening wheel (54) are symmetrically provided with two sets of positioning holes (546). The positioning holes (546) are uniformly arranged axially. Two rotating parts (55) of the same size are symmetrically arranged at both ends of the bearing shaft (53). The rotating parts (55) are sealed and rotated on the bearing shaft (53), and the rotating parts (55) are sealed and fixedly inserted into the straightening wheel (54). The rotating component (55) includes a protrusion (551) and a cylindrical body (552). The protrusion (551) extends out of the end of the straightening wheel (54). The cylindrical body (552) is sealed and inserted into the straightening wheel (54). The inner side of the protrusion (551) is provided with a sealing groove (556) that is compatible with the sealing ring (535). The end of the protrusion (551) is circumferentially fixed with a plurality of positioning bolts (555) that are inserted into the positioning holes (546) one by one. The cylindrical body (552) is hollow with one end open. The open end of the cylindrical body (552) does not cover the outlet end of the liquid inlet channel (531) and the inlet end of the liquid outlet channel (532). The cylinder (552) is provided with a drainage cavity (553) along the axial direction. The drainage cavity (553) is open at one end away from the protrusion (551). The drainage cavity (553) is provided with a plurality of second radial through holes (554) evenly arranged circumferentially at one end facing the protrusion (551). The plurality of second radial through holes (554) and the plurality of first radial through holes (545) correspond to each other and are connected. A flow guiding assembly (6) is axially arranged inside the cylinder (552). The flow guiding assembly (6) includes a spiral groove (61) and a spiral blade (62). The spiral groove (61) is located on one side of the cylinder (552) that is in contact with the bearing shaft (53), and the spiral blade (62) is located inside the drainage cavity (553). The spiral groove (61) extends the drainage cavity (553) to the side wall of the bearing shaft (53). The spiral groove (61) and the spiral blade (62) are staggered, and the spiral blade (62) is fixed to the cavity wall of the drainage cavity (553). The spiral direction and pitch of the spiral groove (61) and the spiral blade (62) are the same. The straightening wheel (54) is coaxially connected to a purification component (7) at the end facing the liquid outflow. The purification component (7) includes a purification chamber (71) coaxially connected to the straightening wheel (54). A blocking ring (72) is coaxially fixed to the end of the purification chamber (71). The blocking ring (72) is slidably inserted into the end portion liquid cavity (543). A filter ring (73) is coaxially arranged inside the purification chamber (71). An axial liquid inlet channel (74) communicating with the purification chamber (71) is provided at the end of the straightening wheel (54). A purification chamber (711) is provided inside the purification chamber (71). The purification chamber (71) faces the straightening wheel (54). The filter ring (73) has a plurality of axial inlet holes (712) evenly arranged circumferentially at one end and an annular outlet groove (713) coaxially arranged. The plurality of axial inlet holes (712) are located on the outside of the blocking ring (72), and the annular outlet groove (713) is located on the inside of the blocking ring (72). The filter ring (73) is located between the plurality of axial inlet holes (712) and the annular outlet groove (713). A drain nozzle (714) is provided on the side wall of the impurity removal chamber (71), and the drain nozzle (714) is connected to the impurity removal chamber (711). The end of the blocking ring (72) is sealed against the end portion liquid chamber (543) away from the impurity removal chamber. One end of the impurity chamber (71); sealing rings (721) are coaxially arranged on the inner and outer sides of the blocking ring (72); the axial liquid inlet channel (74) includes an inclined channel (741), an axial liquid outlet channel (742), and a limiting groove (743). The inclined channel (741) is circumferentially and evenly arranged at the end of the straightening wheel (54). The inclined channel (741) is connected to the connection between the end portion liquid cavity (543) and the axial channel (544). The inclined channel (741) is radially expanded and inclined along the axial direction from the end portion liquid cavity (543) to the impurity removal chamber (71). The inclined channel (741) and the liquid inlet... The axial holes (712) are one-to-one and connected. The axial liquid outlet channel (742) is circumferentially and uniformly arranged at the end of the straightening wheel (54). The axial liquid outlet channel (742) is connected to the end part liquid cavity (543) and the liquid outlet annular groove (713) respectively. The limiting groove (743) is arranged between the inclined channel (741) and the axial liquid outlet channel (742). The limiting groove (743) is connected to the end part liquid cavity (543). The blocking ring (72) is sealed and inserted into the limiting groove (743). Two annular grooves that are coaxially arranged in the limiting groove (743) and are sealed and adapted to the sealing ring (721) are sealed.

2. The spring production steel wire pretreatment and straightening equipment as described in claim 1, characterized in that, The mounting frame (31) is symmetrically threaded with multiple calibration screws (311).

3. The spring production steel wire pretreatment and straightening equipment as described in claim 1, characterized in that, The shaft (32) is rotatably mounted on the bearing housing (321), and the bearing housing (321) is fixedly connected to the frame (1).

4. The spring production steel wire pretreatment and straightening equipment as described in claim 1, characterized in that, The two liquid inlet / outlet rotary joints (33) are the same size. Each liquid inlet / outlet rotary joint (33) includes a fixed cylinder (331) rotatably sleeved on the shaft cylinder (32). One end of the fixed cylinder (331) is sealed and rotatably connected to the rotating cylinder (332). The rotating cylinder (332) is fixed to the mounting frame (31). An injection nozzle (333) is connected to the side wall of the fixed cylinder (331). An outlet nozzle (334) is connected to the end of the rotating cylinder (332). The outlet nozzle (334) passes through the mounting frame (31) and is connected to the straightening assembly (5).

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