A cutting device for bearing wire processing

Abstract

This invention relates to the field of steel wire processing equipment technology, specifically to a cutting device for processing bearing steel wire. It includes an unwinding mechanism, a straightening mechanism, and a cutting mechanism arranged sequentially. A feeding assembly and a cutting assembly are mounted on a support frame. The feeding assembly housing includes a pressing component, an F-type sliding block with a first one-way limiting pawl, and a cylinder. A guide rail is damped and slidably connected to the F-type sliding block. After the cylinder feeds the wire to the correct position, it directly drives the pawl back to its original position. This invention achieves wire feeding by using a cylinder to drive the F-type sliding block and the first one-way limiting pawl. After feeding to the correct position, the cylinder can directly drive the first one-way limiting pawl back to its initial position. The pawl return action is executed in parallel with the cutting assembly feeding, pressing component clamping, and wire cutting actions, eliminating the need to wait for cutting to complete and the pressing component to open. This completely solves the problem of excessively long processing cycles caused by existing serial timing, significantly improving processing efficiency and meeting the needs of continuous production of large quantities of precision bearing steel wire.

Description

Technical Field

[0001] This invention relates to the field of steel wire processing technology, specifically to a cutting device for processing bearing steel wire. Background Technology

[0002] As the core raw material for manufacturing bearing rolling elements, bearing steel wire is cut to length, which is the first key process in bearing production. The processing efficiency directly determines the capacity and manufacturing cost of the entire bearing production line.

[0003] Currently, the bearing steel wire fixed-length cutting devices commonly used in the industry generally adopt a serial working sequence. That is, after the feeding mechanism pushes the steel wire to the fixed length position, it remains locked. It needs to wait for the pressure component to clamp, the cutting mechanism to complete the cutting, and the cutting mechanism to retract and the pressure component to open before the feeding mechanism can return to its position to prepare for the next feeding operation.

[0004] The core flaw of this design is that the feeding return and cutting operations cannot be carried out in parallel. It is necessary to wait for the cutting and pressing parts to open and close throughout the process, resulting in an excessively long single-cycle processing cycle and a low effective equipment utilization rate, which makes it difficult to meet the actual needs of large-scale continuous production. Therefore, there is an urgent need for a cutting device for processing bearing steel wire. Summary of the Invention

[0005] The purpose of this invention is to provide a cutting device for processing bearing steel wire, which enables the parallel execution of feeding return and cutting actions, significantly shortens the single-cycle processing cycle, and improves the effective utilization rate of the equipment.

[0006] To achieve the above objectives, the technical solution provided by the present invention is as follows: A cutting device for processing bearing steel wire includes an unwinding mechanism, a straightening mechanism, and a cutting mechanism arranged sequentially and cooperating with each other. The cutting mechanism includes a support frame, and a feeding assembly and a cutting assembly are installed on the table of the support frame. The feeding assembly includes a housing. The two side walls of the housing are respectively provided with wire-passing holes for cooperation with the straightening mechanism and cutting grooves for cooperation with the cutting assembly. The inner cavity of the housing is provided with an openable and closable pressing component. The steel wire to be cut is inserted into the pressing component through the wire-passing holes. A guide rail is installed at the bottom of the inner cavity of the housing. An F-type sliding block is slidably connected to the guide rail. The two horizontal ends of the F-type sliding block are located at the top and bottom of the pressing component, respectively. The two horizontal ends of the two F-type sliding blocks are symmetrically provided with first one-way limiting pawls. Both first one-way limiting pawls are inserted into the pressing component and abut against the steel wire, restricting the steel wire to slide only in one direction along the feeding direction. A cylinder is provided on the inner wall of the housing near the straightening mechanism. The telescopic end of the cylinder is connected to the F-type sliding block. The cylinder is used to push the first one-way limiting pawls to feed the steel wire into the pressing component. After feeding to the correct position, the cylinder directly drives the first one-way limiting pawls back to the initial position for the next feeding. The box is equipped with a first driving component that is in transmission cooperation with the pressing component. When the cutting component slides towards the box to cut, the first driving component can drive the pressing component to close and clamp the steel wire. After the cutting is completed, the pressing component is driven to open and release the finished steel wire.

[0007] Preferably, the first driving component includes a worm gear and a first screw gear rotatably connected to the housing. A worm wheel meshing with the worm gear is fixedly connected to the outer wall of the first screw gear. A first slider that slides against the inner wall of the housing is threadedly connected to the outer wall of the first screw gear. The first slider is connected to the movable end of the pressing component. A gear is fixedly connected to the outer wall of the worm gear. A sliding strip is slidably connected through the side wall of the housing. A rack that meshes with the gear is provided on the side of the sliding strip.

[0008] Preferably, the pressing component includes a first pressing strip fixed to the inner wall of the box and a second pressing strip slidably connected to the box. The first pressing strip has a positioning groove that cooperates with the steel wire to be cut. The second pressing strip has a pressing protrusion that corresponds to the positioning groove. The top and bottom of the first pressing strip are both provided with sliding grooves that cooperate with the first one-way limiting pawl. The first slider is fixedly connected to the end of the second pressing strip.

[0009] Preferably, the sliding bar extends out of the side wall of the housing at one end near the cutting component. When the cutting component feeds into the housing, it first pushes the sliding bar to slide into the housing. Before the cutting component contacts the steel wire, the first driving component drives the pressing component to complete the closing clamping action.

[0010] Preferably, an auxiliary clamping component is provided at the end of the pressing component away from the straightening mechanism. The auxiliary clamping component includes two second screws, which are respectively fixedly connected to the two ends of the worm gear. The outer walls of the two second screws are threaded with second sliders. The side walls of the second sliders are equipped with second one-way limiting pawls. The two sets of second one-way limiting pawls are respectively inserted into the top and bottom of the pressing component to lock the end of the steel wire in one direction.

[0011] Preferably, when the cylinder pushes the first one-way limiting pawl to complete the feeding, the two sets of second one-way limiting pawls clamp and fix the feeding end of the steel wire; during the process of the pressure member closing and clamping the steel wire, the two sets of second one-way limiting pawls slide away from each other with the second slider and disengage from the pressure member.

[0012] Preferably, both the first and second unidirectional limiting pawls are elastic pressing type unidirectional ratchet structures, and the orientation of the ratchet teeth of both is consistent with the feeding direction. When feeding, the ratchet teeth clamp the steel wire directly to form a positive lock, and when returning, the inclined surface of the ratchet teeth slides along the surface of the steel wire without any reverse locking force.

[0013] Preferably, the F-type sliding block has a hollow structure, and both horizontal ends of the F-type sliding block are sealed and slidably connected with connecting strips. The connecting strips are fixedly connected to the corresponding first one-way limiting pawls. A piston cylinder is fixed to the vertical section of the F-type sliding block near the cylinder. One end of the piston cylinder is connected to the hollow inner cavity of the F-type sliding block. A piston block is sealed and slidably connected to the inner cavity of the piston cylinder. The telescopic end of the cylinder is inserted into the piston cylinder and fixedly connected to the piston block.

[0014] Preferably, the cutting assembly includes a slide fixed to the support frame platform, a mounting base slidably connected to the top of the slide, a cutting motor fixedly mounted on one side of the mounting base, the output end of the cutting motor passing through the mounting base and fixedly connected to a rotating shaft, and a plurality of cutting blades fixedly mounted at equal intervals along the axial direction on the outer wall of the rotating shaft, the cutting blades correspondingly cooperating with the cutting grooves on the side wall of the housing.

[0015] Preferably, a water spraying device is fixedly installed on the top of the inner cavity of the box, and the spraying end of the water spraying device is set towards the cutting position of the pressing device, which is used to cool the steel wire and cutting blade in real time during the cutting process and to wash away the metal debris generated during cutting. Below the support frame is a receiving box for receiving the cut finished steel wire. The receiving box is filled with cooling and protective fluid. The table surface of the support frame and the bottom of the box are both provided with discharge ports that are connected to the receiving box.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention uses a cylinder to drive an F-type sliding block and a first one-way limiting pawl to feed the steel wire. After feeding, the cylinder can directly drive the first one-way limiting pawl back to its initial position. The pawl return action is executed in parallel with the feeding of the cutting component, the clamping of the pressure component, and the cutting of the steel wire. There is no need to wait for the cutting to be completed and the pressure component to open, which completely solves the problem of excessively long processing cycles caused by the existing serial timing, greatly improves processing efficiency, and can meet the needs of continuous production of large batches of precision bearing steel wire. At the same time, the first one-way limiting pawl can restrict the steel wire to slide only in one direction along the feeding direction. With the openable and closable pressure component, it can effectively prevent the steel wire from moving around during feeding and cutting, ensuring the accuracy of fixed-length cutting and taking into account processing stability. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the cutting device of the present invention; Figure 2 This is a top view of the cutting device of the present invention; Figure 3 This is a schematic diagram of the feeding assembly in the cutting device of the present invention; Figure 4 This is a schematic diagram of the feeding assembly in the cutting device of the present invention after the housing is removed; Figure 5 for Figure 4 Enlarged structural diagram at point A; Figure 6 This is a schematic diagram of the structure of the first pressure bar and its connecting components in the cutting device of the present invention; Figure 7 This is a schematic diagram of the internal structure of the F-type sliding block in the cutting device of the present invention; Figure 8 This is a side cross-sectional view of the F-type sliding block in the cutting device of the present invention.

[0019] The attached diagram lists the components represented by each number as follows: 1. Straightening mechanism; 2. Support frame; 3. Feeding assembly; 31. Housing; 32. Pressing component; 321. First pressing bar; 3211. Positioning groove; 322. Second pressing bar; 323. Slide groove; 324. Second screw; 325. Second slider; 326. Second one-way limiting pawl; 33. Guide rail; 34. F-type sliding block; 341. Connecting bar; 342. Piston cylinder; 343. Piston block; 35. First one-way limiting pawl; 36. Cylinder; 37. Worm gear; 38. First screw; 39. Worm wheel; 310. First slider; 311. Gear; 312. Sliding bar; 313. Rack; 4. Cutting assembly; 41. Slide table; 42. Mounting base; 43. Cutting motor; 44. Rotating shaft; 45. Cutting blade. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] like Figures 1-8As shown, the cutting device for processing bearing steel wire in this embodiment includes an unwinding mechanism, a straightening mechanism 1, and a cutting mechanism arranged sequentially and cooperating with each other. The unwinding mechanism is used to release the bearing steel wire coil (existing technology, not shown in the figure). The straightening mechanism 1 adopts a two-roller straightening structure composed of multiple sets of straightening rollers, whose main function is to eliminate the bending internal stress of the steel wire, ensure the straightness of the steel wire, and prepare for the subsequent fixed-length cutting process.

[0022] The cutting mechanism includes a support frame 2, which is a rigid frame structure welded from steel profiles to ensure no vibration or deformation during equipment operation. A feeding assembly 3 and a cutting assembly 4 are fixedly installed on the table surface of the support frame 2. The feeding assembly 3 is aligned with the discharge end of the straightening mechanism 1 to ensure that the steel wire is fed in a straight line.

[0023] The feeding assembly 3 includes a closed box 31 (the box 31 is equipped with an openable operating door). The left and right side walls of the box 31 are respectively provided with wire threading holes that cooperate with the straightening mechanism 1 and cutting grooves that cooperate with the cutting assembly 4. The wire threading holes are coaxially arranged with the discharge port of the straightening mechanism 1. The width of the cutting groove is greater than the thickness of the cutting blade 45, so as to reserve sufficient clearance for the cutting blade 45 to feed.

[0024] The inner cavity of the housing 31 is equipped with an openable pressing component 32. The steel wire to be cut is inserted into the pressing component 32 through the wire threading hole. A guide rail 33 is fixedly installed at the bottom of the inner cavity of the housing 31 by bolts. The extension direction of the guide rail 33 is parallel to the wire feeding direction. An F-type sliding block 34 is connected to it with damping sliding. A damping pad is provided between the mating surfaces of the guide rail 33 and the F-type sliding block 34 to achieve damping sliding, which can effectively offset the impact generated when the cylinder 36 starts and stops.

[0025] The two horizontal ends of the F-type sliding block 34 are located at the top and bottom of the pressure member 32, respectively, and the two horizontal ends are symmetrically provided with first one-way limiting pawls 35. The top and bottom of the first pressure bar 321 are both provided with sliding grooves 323 that slide with the first one-way limiting pawls 35. The two first one-way limiting pawls 35 pass through the sliding grooves 323 and are inserted into the pressure member 32, and abut against the upper and lower surfaces of the steel wire, thereby restricting the steel wire to slide only in one direction along the feeding direction.

[0026] A cylinder 36 is fixed to the inner wall of the end of the housing 31 near the straightening mechanism 1 by bolts. The telescopic end of the cylinder 36 is fixedly connected to the vertical section of the F-type sliding block 34. Its function is to push the first one-way limiting pawl 35 to feed the steel wire into the pressing component 32. After the material is fed into place, it can directly drive the first one-way limiting pawl 35 back to the initial position, waiting for the next feeding.

[0027] In this embodiment, the F-type sliding block 34 adopts a hollow sealed structure, with connecting strips 341 sealingly and slidingly connected to both horizontal ends. One end of the connecting strip 341 extends into the hollow inner cavity, and the other end is fixedly connected to the corresponding first one-way limiting pawl 35. A piston cylinder 342 is fixedly attached to the vertical section of the F-type sliding block 34 near the cylinder 36. One end of the piston cylinder 342 is connected to the hollow inner cavity of the F-type sliding block 34, and a piston block 343 is sealingly and slidingly connected to its inner cavity. The telescopic end of the cylinder 36 is inserted into the piston cylinder 342 and fixedly connected to the piston block 343. When cylinder 36 extends, it first pushes piston block 343 to compress the gas in the hollow inner cavity. The air pressure then pushes connecting bar 341 to drive the first one-way limiting pawl 35 to clamp the steel wire, and then pushes F-type sliding block 34 to feed the entire material. When cylinder 36 retracts, it first releases the air pressure in the inner cavity to reduce the clamping force of the pawl, and then drives F-type sliding block 34 back to its original position, realizing adaptive clamping. The air pressure adaptive clamping design can automatically adjust the clamping force according to the outer diameter of the steel wire, avoiding excessive pressure that damages the steel wire or insufficient pressure that causes the feeding to slip. At the same time, it realizes the synchronous linkage of feeding and clamping actions, simplifies the structural design, reduces mechanical wear, and improves the stability and reliability of feeding.

[0028] The housing 31 is equipped with a first driving component that is in transmission cooperation with the pressing component 32. When the cutting assembly 4 slides toward the housing 31 to perform the cutting operation, the first driving component can drive the pressing component 32 to close and clamp the steel wire. After the cutting is completed, the pressing component 32 is driven to open and the finished steel wire is released.

[0029] In this embodiment, the first driving component includes a worm 37 and a first screw 38 rotatably connected to the inner wall of the housing 31 via a bearing seat. The worm 37 and the first screw 38 are arranged perpendicularly and alternately. A worm wheel 39 meshing with the worm 37 is fixedly connected to the outer wall of the first screw 38, and a first slider 310 that slides in cooperation with the inner wall of the housing 31 is also threadedly connected to its outer wall. The inner wall of the housing 31 is provided with a limiting guide rail that cooperates with the first slider 310, restricting the first slider 310 to slide only in a direction perpendicular to the feeding direction. The first slider 310 is connected to the movable end of the pressing component 32. A gear 311 is fixedly connected to the outer wall of the worm 37, and a sliding strip 312 is slidably connected through the side wall of the housing 31. A rack 313 is provided on the side of the sliding strip 312 to mesh with the gear 311. The combination of rack and gear and worm gear transmission can not only achieve smooth power transmission and reduce vibration and noise during transmission, but also utilize the self-locking characteristics of the worm gear to ensure that the clamping part 32 will not loosen on its own after clamping, thus improving the stability during the cutting process. At the same time, the screw and slider structure can achieve precise opening and closing of the clamping part 32, ensuring clamping accuracy and avoiding clamping deviation caused by transmission clearance.

[0030] The pressure component 32 includes a first pressure strip 321 that is fixed to the inner wall of the housing 31 by bolts, and a second pressure strip 322 that is slidably connected to the housing 31. The first pressure bar 321 has a positioning groove 3211 on the side facing the second pressure bar 322, which is a semi-circular groove that matches the outer diameter of the wire. The second pressure bar 322 is fixed with a clamping protrusion that corresponds to the positioning groove 3211. The clamping protrusion is an arc-shaped protrusion that matches the positioning groove 3211, which can achieve circumferential wrapping and clamping of the wire. The first slider 310 is fixedly connected to the end of the second pressure bar 322. The cooperation between the semi-circular positioning groove 3211 and the arc-shaped clamping protrusion can fit the outer contour of the wire, increase the contact area between the wire and the pressure member, avoid the surface damage of the wire caused by excessive local pressure, and achieve circumferential positioning and clamping of the wire. This prevents the wire from moving radially during the cutting process, ensures a flat cut, meets the length accuracy standard, and can be adapted to wires with different outer diameters, improving the versatility of the device.

[0031] The sliding bar 312 extends out of the side wall of the housing 31 near the cutting component 4. When the cutting component 4 feeds towards the housing 31, it first pushes the sliding bar 312 to slide into the housing 31. Before the cutting component 4 contacts the steel wire, the first driving component drives the clamping component 32 to complete the closing clamping action. This structure can realize the linkage and synchronization of cutting feed and clamping, without the need for an additional independent clamping control mechanism, simplifying the equipment structure and reducing the control difficulty. At the same time, it ensures that the clamping action is completed before the cutting action, avoiding the skewed cut and dimensional deviation caused by the steel wire not being clamped in the early stage of cutting, further improving the cutting quality and processing stability, while reducing the redundancy of equipment actions and shortening the single cycle processing time.

[0032] In this embodiment, an auxiliary clamping component is provided at the end of the pressing component 32 away from the straightening mechanism 1. The auxiliary clamping component includes two second screws 324, which are coaxially fixedly connected to both ends of the worm gear 37. The outer walls of both screws are threaded with second sliders 325. The inner wall of the housing 31 is provided with guide rails that cooperate with the second sliders 325. The side walls of the second sliders 325 are equipped with second one-way limiting pawls 326. The two sets of second one-way limiting pawls 326 are respectively inserted into the top and bottom of the pressing component 32 to lock the end of the steel wire in one direction. The auxiliary clamping component can perform secondary positioning and locking of the feeding end of the steel wire, preventing the steel wire from springing back when the feeding mechanism returns, ensuring accurate length dimensions. At the same time, it forms a bidirectional cooperation with the first one-way limiting pawl, further restricting the axial movement of the steel wire, providing a stable positioning basis for subsequent cutting operations, and improving the overall processing accuracy.

[0033] When the cylinder 36 pushes the first one-way limiting pawl 35 to complete the feeding action, the two sets of second one-way limiting pawls 326 will clamp and fix the feeding end of the steel wire. During the process of the clamping component 32 closing and clamping the steel wire, the rotation of the worm 37 will drive the second screw 324 to rotate synchronously, so that the two sets of second one-way limiting pawls 326 slide away from each other with the second slider 325 and disengage from the clamping component 32, avoiding interference with the cutting blade 45. This structure realizes the linkage of the auxiliary clamping component with the clamping component and the cutting component. The locking and avoidance of the auxiliary clamping can be completed without additional control mechanism. It not only ensures the accuracy of the feeding length, but also avoids the collision and damage between the auxiliary clamping component and the cutting blade, extending the service life of the equipment. At the same time, it simplifies the control logic of the equipment and improves the operational stability.

[0034] In this embodiment, both the first unidirectional limiting pawl 35 and the second unidirectional limiting pawl 326 adopt an elastic pressing type unidirectional ratchet structure, and the orientation of the ratchet teeth of both is consistent with the feeding direction. During feeding, the straight surface of the ratchet teeth clamps the steel wire to form a positive lock; during return, the inclined surface of the ratchet teeth slides along the surface of the steel wire, without generating a reverse locking force. A compression spring is provided at the bottom of the pawl, which can realize elastic pressing to ensure that the ratchet teeth are always in contact with the surface of the steel wire. The elastic pressing design can adapt to steel wires of different outer diameters, ensuring that the pawl and the surface of the steel wire are in close contact, improving the locking reliability. At the same time, the unidirectional ratchet structure only generates locking force in the feeding direction, and there is no reverse resistance during return, avoiding scratching the surface of the steel wire when the pawl returns, protecting the high-precision surface quality of the steel wire, and reducing frictional wear between the pawl and the steel wire, thus extending the service life of the pawl.

[0035] The cutting assembly 4 includes a slide table 41 bolted to the support frame 2. This slide table 41 is a linear modular slide table with controllable feed accuracy. A mounting base 42 is slidably connected to the top of the slide table 41. A cutting motor 43 is bolted to one side of the mounting base 42. The output end of the cutting motor 43 passes through the mounting base 42 and is fixedly connected to a rotating shaft 44 via a coupling. Several cutting blades 45 are fixedly mounted at equal intervals along the axial direction on the outer wall of the rotating shaft 44. These cutting blades 45 are carbide disc cutters that correspond to the cutting grooves on the side wall of the housing 31. The linear modular slide table enables precise feed of the cutting assembly, ensuring consistent cutting position and improving the accuracy of fixed-length cutting. The carbide disc cutters have high hardness and wear resistance, which can extend the service life of the cutting blades, reduce the frequency of tool replacement, and reduce maintenance costs. At the same time, the setting of multiple cutting blades can realize the simultaneous cutting of multiple steel wires, further improving processing efficiency and adapting to the needs of mass production.

[0036] A water spray device is fixedly installed at the top of the inner cavity of the housing 31. This water spray device uses a high-pressure atomizing nozzle, and its spray end is directed towards the cutting position of the pressing component 32. It is used to cool the steel wire and cutting blade 45 in real time during the cutting process, and at the same time to wash away the metal debris generated during cutting. A receiving box for receiving the cut steel wire is placed below the support frame 2. The receiving box is filled with a cooling and protective fluid, which is a rust-preventive cutting fluid. Both the support frame 2 and the bottom of the housing 31 have discharge ports that connect to the receiving box. The cut finished steel wire and coolant fall into the receiving box through the discharge ports, achieving finished product collection and chip settling. High-pressure atomization cooling can quickly reduce the temperature of the cutting area, preventing changes in the steel wire material and accelerated wear of the cutting blade caused by high temperature. At the same time, it washes away metal chips, preventing chips from accumulating at the cutting station and affecting cutting accuracy and equipment operation. Rust-preventive cutting fluid can protect the finished steel wire and equipment parts from rust, reduce equipment corrosion and finished product rust, and improve finished product quality. The cooperation between the receiving box and the discharge port enables automatic collection of finished products, reducing manual operation and improving processing efficiency.

[0037] The specific working principle of the above embodiments is as follows: Initial feeding standby: The bearing steel wire is released by the unwinding mechanism, straightened by the straightening mechanism 1, and then passes through the wire feeding hole of the housing 31 and is embedded in the positioning groove 3211 of the first pressure bar 321. At this time, the cylinder 36 is in the retracted state, the F-type sliding block 34 is stopped in the initial position, the first one-way limiting pawl 35 passes through the sliding groove 323 and abuts against the surface of the steel wire, the pressing part 32 is in the open state, and the second one-way limiting pawl 326 is inserted into the end of the first pressure bar 321 and is in the standby state.

[0038] Fixed-length feeding: The cylinder 36 extends outward, first pushing the piston block 343 to compress the hollow inner cavity of the F-type sliding block 34, driving the first one-way limiting pawl 35 to press the steel wire, and then pushing the F-type sliding block 34 to slide along the guide rail 33 with damping. The first one-way limiting pawl 35 drives the steel wire to be fed towards the cutting component 4 until the cylinder 36 extends to the preset stroke, completing the fixed-length feeding.

[0039] Immediate Pawl Return: The moment the material is fed into position, cylinder 36 immediately retracts, first releasing the air pressure in the hollow cavity to reduce the clamping force of the first one-way limiting pawl 35, and then driving the F-type sliding block 34 and the first one-way limiting pawl 35 to smoothly return to their initial positions. During the return process, the first one-way limiting pawl 35 slides freely along the surface of the wire, without causing the wire to spring back, while the second one-way limiting pawl 326 locks the front end of the wire to ensure that the fixed length dimension remains unchanged.

[0040] Feeding and clamping synchronous action: While the first one-way limiting pawl 35 returns to its original position, the slide table 41 drives the mounting base 42 to feed towards the housing 31. The mounting base 42 first pushes the sliding bar 312 to slide into the housing 31, and drives the worm 37 to rotate through the rack 313-gear 311. Then, it drives the first slider 310 and the second pressure bar 322 to slide towards the first pressure bar 321 through the worm wheel 39-first screw 38, completing the clamping before the cutting blade 45 contacts the steel wire. At the same time, the worm 37 drives the second screw 324 to rotate, causing the second one-way limiting pawl 326 to move away from each other and exit the first pressure bar 321, completing the avoidance.

[0041] Cutting, cooling and material discharge: After the clamping component 32 is fully clamped, the cutting blade 45 extends into the housing 31 through the cutting groove and rotates at high speed to cut the steel wire; during the cutting process, the water spray component continuously sprays coolant to cool the cut and the cutting blade 45, while washing away metal debris. The finished steel wire falls into the receiving box through the discharge port to complete a single cycle of processing.

[0042] Machine reset: After cutting is completed, the mounting base 42 drives the cutting blade 45 back to the initial position, and the sliding bar 312 slides back to reset (a reset spring is provided on the outer wall of the sliding bar 312 to realize the automatic reset of the sliding bar 312), which in turn drives the pressing component 32 to open, and the second one-way limit pawl 326 to re-insert into the first pressing bar 321. The device returns to the standby state and can immediately trigger the next feeding cycle.

[0043] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that variations may be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cutting device for processing bearing steel wire, comprising an unwinding mechanism, a straightening mechanism (1), and a cutting mechanism arranged sequentially and cooperating with each other, characterized in that: The cutting mechanism includes a support frame (2), and a feeding assembly (3) and a cutting assembly (4) are mounted on the table of the support frame (2). The feeding assembly (3) includes a housing (31). The two side walls of the housing (31) are respectively provided with wire-threading holes that cooperate with the straightening mechanism (1) and cutting grooves that cooperate with the cutting assembly (4). The inner cavity of the housing (31) is provided with an openable pressing component (32), and the steel wire to be cut is inserted into the pressing component (32) through the wire-threading holes. A guide rail (33) is installed at the bottom of the inner cavity of the housing (31). An F-type sliding block (34) is damped and slidably connected on the guide rail (33). The two horizontal ends of the F-type sliding block (34) are respectively located at the top and bottom of the pressing component (32). The two F-type sliding blocks (34) are connected in a damping manner. 4) The horizontal ends are symmetrically provided with first one-way limiting pawls (35). Both first one-way limiting pawls (35) are inserted into the pressing component (32) and abut against the steel wire, restricting the steel wire to slide only in one direction along the feeding direction. The inner wall of the box (31) near the straightening mechanism (1) is provided with a cylinder (36). The telescopic end of the cylinder (36) is connected to the F-type sliding block (34). The cylinder (36) is used to push the first one-way limiting pawls (35) to feed the steel wire into the pressing component (32). After feeding to the position, it directly drives the first one-way limiting pawls (35) to return to the initial position for the next feeding. The housing (31) is equipped with a first driving component that is in transmission cooperation with the pressing component (32). When the cutting component (4) slides towards the housing (31) to cut, the first driving component can drive the pressing component (32) to close and clamp the steel wire. After the cutting is completed, the pressing component (32) is driven to open and release the finished steel wire.

2. The cutting device for processing bearing steel wire according to claim 1, characterized in that: The first driving component includes a worm (37) and a first screw (38) rotatably connected to the housing (31). The outer wall of the first screw (38) is fixedly connected to a worm wheel (39) that meshes with the worm (37). The outer wall of the first screw (38) is threadedly connected to a first slider (310) that slides with the inner wall of the housing (31). The first slider (310) is connected to the movable end of the pressure component (32). The outer wall of the worm (37) is fixedly connected to a gear (311). The side wall of the housing (31) is slidably connected to a sliding strip (312). The side of the sliding strip (312) is provided with a rack (313) that meshes with the gear (311).

3. The cutting device for processing bearing steel wire according to claim 2, characterized in that: The pressing component (32) includes a first pressing strip (321) fixed to the inner wall of the box (31) and a second pressing strip (322) slidably connected to the box (31). The first pressing strip (321) has a positioning groove (3211) that cooperates with the steel wire to be cut. The second pressing strip (322) has a pressing protrusion that corresponds to the positioning groove (3211). The top and bottom of the first pressing strip (321) are both provided with sliding grooves (323) that slide with the first one-way limiting pawl (35). The first slider (310) is fixedly connected to the end of the second pressing strip (322).

4. The cutting device for processing bearing steel wire according to claim 2, characterized in that: The sliding bar (312) extends out of the side wall of the box (31) near the cutting component (4). When the cutting component (4) feeds into the box (31), it first pushes the sliding bar (312) to slide into the box (31). Before the cutting component (4) contacts the steel wire, the first driving component drives the pressing component (32) to complete the closing clamping action.

5. The cutting device for processing bearing steel wire according to claim 2, characterized in that: An auxiliary clamping component is provided at the end of the pressing component (32) away from the straightening mechanism (1). The auxiliary clamping component includes two second screws (324). The two second screws (324) are respectively fixedly connected to the two ends of the worm (37). The outer walls of the two second screws (324) are threaded with second sliders (325). The side walls of the second sliders (325) are equipped with second one-way limiting pawls (326). The two sets of second one-way limiting pawls (326) are respectively inserted into the top and bottom of the pressing component (32) for one-way locking of the wire end.

6. The cutting device for processing bearing steel wire according to claim 5, characterized in that: When the cylinder (36) pushes the first one-way limiting pawl (35) to complete the feeding, the two sets of second one-way limiting pawls (326) clamp and fix the feeding end of the steel wire; during the process of the pressure member (32) closing and clamping the steel wire, the two sets of second one-way limiting pawls (326) slide away from each other and disengage from the pressure member (32) along with the second slider (325).

7. The cutting device for processing bearing steel wire according to claim 6, characterized in that: The first one-way limiting pawl (35) and the second one-way limiting pawl (326) are both elastic top-pressing one-way ratchet structures. The ratchet orientation of both is consistent with the feeding direction. When feeding, the ratchet straight surface clamps the steel wire to form a positive lock. When returning, the ratchet inclined surface slides along the surface of the steel wire without reverse locking force.

8. The cutting device for processing bearing steel wire according to claim 1, characterized in that: The F-type sliding block (34) has a hollow structure. Both horizontal ends of the F-type sliding block (34) are sealed and slidably connected with connecting strips (341). The connecting strips (341) are fixedly connected with the corresponding first one-way limiting pawls (35). A piston cylinder (342) is fixed on the side of the vertical section of the F-type sliding block (34) near the cylinder (36). One end of the piston cylinder (342) is connected to the hollow inner cavity of the F-type sliding block (34). A piston block (343) is sealed and slidably connected to the inner cavity of the piston cylinder (342). The telescopic end of the cylinder (36) is inserted into the piston cylinder (342) and fixedly connected to the piston block (343).

9. The cutting device for processing bearing steel wire according to claim 1, characterized in that: The cutting assembly (4) includes a slide (41) fixed on the table surface of the support frame (2). A mounting base (42) is slidably connected to the top of the slide (41). A cutting motor (43) is fixedly installed on one side of the mounting base (42). The output end of the cutting motor (43) passes through the mounting base (42) and is fixedly connected to a rotating shaft (44). A plurality of cutting blades (45) are fixedly installed at equal intervals along the axial direction on the outer wall of the rotating shaft (44). The cutting blades (45) are correspondingly engaged with the cutting grooves on the side wall of the housing (31).

10. A cutting device for processing bearing steel wire according to claim 9, characterized in that: A water spraying device is fixedly installed on the top of the inner cavity of the box (31). The spraying end of the water spraying device is set towards the cutting position of the pressing device (32) to cool the steel wire and cutting blade (45) in real time during the cutting process and to flush away the metal debris generated during cutting. Below the support frame (2) is a receiving box for receiving the cut finished steel wire. The receiving box is filled with cooling and protective liquid. The table surface of the support frame (2) and the bottom of the box body (31) are both provided with discharge ports that are connected to the receiving box.

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