A modified multi-station needle making machine

Abstract

The application is suitable for the technical field of textile equipment, and provides a modified multi-station needle making machine, which comprises a machine table, a needle tongue processing unit, a spinning needle assembling unit and a tongue mounting mechanical arm, the needle tongue processing unit comprises a tongue hook conveying turntable and a punch taper module, a tongue material punch bending module, a tongue bowl punching module and a tongue material flattening module which are arranged in sequence outside the tongue hook conveying turntable, the spinning needle assembling unit comprises an assembling turntable and a needle feeding module, an axle extruding module, a hook bending module and a needle discharging module which are arranged in sequence outside the assembling turntable, and the tongue mounting mechanical arm comprises a mechanical arm base, a mechanical arm body and a driving mechanism, the application integrates the complete needle tongue processing procedure and the spinning needle assembling by reconfiguring the layout, forms the multi-station needle making machine, has compact structure, reduces the floor space and investment, redesigns the key procedure of needle tongue processing, improves the overall beat, adopts the cylinder to directly drive the action of the actuator, simplifies the structure, makes the structure more reliable, simple and easy to maintain.

Description

Technical Field

[0001] This invention belongs to the field of textile equipment manufacturing technology, and in particular relates to a modified multi-station needle making machine. Background Technology

[0002] Needle-making machines are essential basic equipment in the textile industry. There are two main types of mature needle-making equipment in the industry: one is to combine multiple single machines to form a needle-making production line to complete all processing; the other is to combine multiple processes together, with single machines integrating processes and multi-station composite processing as much as possible to reduce the number of machines and floor space, and improve production and conveying efficiency, such as nine-stage combined machines and seven-stage combined machines.

[0003] There are three common types of knitting needles: latch needles, crochet needles, and composite needles. Most existing latch needle making machines are small single-machine combinations or purely mechanical needle making machines that combine some processes. The former cannot complete the processing of the latch and subsequent assembly to form a finished knitting needle in one go, while the latter has a complex and fixed structure, which makes it inconvenient to adjust the process parameters of new knitting needles, and maintenance and upgrading are cumbersome and difficult.

[0004] Single-machine equipment commonly used in needle tongue processing for processes such as straightening, tapering, and tongue adjustment (punching cup) is still in operation in some spinning and knitting factories. These spinning and knitting production lines typically combine multiple single-machine processes, using buffer hoppers and conveyors to complete the entire needle tongue processing and spinning and knitting assembly. Buffer hoppers or storage units are used when the cycle time of individual processes is too long to balance the production line cycle time and avoid the bottleneck effect. The main drawbacks are threefold: First, multi-machine combined production lines occupy a large amount of factory space, resulting in a significant total investment; second, adjusting parameters of some purely mechanical functional modules is inconvenient, and upgrades are time-consuming and labor-intensive, making them unsuitable for processing multiple varieties of spinning and knitting in the same series; third, the single-machine cycle time for processes such as tapering and rounding in needle tongue processing is too long, and the structure is outdated and complex, requiring redesign of these functional modules.

[0005] Existing integrated needle-making machines are bulky and occupy excessive space. Current single-unit needle tongue processing and taper-making machines rely entirely on purely mechanical branch power to drive multiple actuators, resulting in a cumbersome and complex structure. Once the modules are installed and debugged, parameters cannot be adjusted, and the cycle time is limited by the fixed structure, becoming a bottleneck in needle tongue processing. It is impossible to adjust parameters to adapt to processing various needle tongue types, nor can efficiency be improved or cycle time shortened within the existing structure. Existing single-unit spinning and needle assembly machines, such as those for feeding, needle delivery, hook bending, and needle take-up, all rely on purely mechanical module movements, resulting in an outdated and cumbersome structure that is inconvenient for subsequent maintenance and modification.

[0006] In summary, the main shortcomings of existing multi-unit combined production lines for needle tongue processing and needle assembly are:

[0007] 1. Existing needle tongue processing and needle assembly lines, which combine multiple single machines, occupy a large space and require significant investment.

[0008] 2. The existing taper machine is purely mechanically driven by a branched transmission chain, which has a bottleneck upper limit on the power cycle time. The existing taper machine has a purely mechanical structure, which drives the asynchronous motion of different actuators through multiple power branches of the transmission chain. The cycle time and speed are limited by the fixed structure and cannot be adjusted to a high-speed operating state, which becomes a bottleneck process and affects the improvement of the overall cycle time of the machine.

[0009] 3. Difficulty in adjusting the tapering process parameters; The key process parameters of the tapering process include the taper angle and length of the tapering section, tension, cutting length, and feed speed. After the existing module is installed and debugged, the structure is fixed and cannot be adjusted to adapt to tapering of multiple products.

[0010] 4. The structure is cumbersome and bulky, making maintenance and modification difficult; many existing single-unit spinning and needle assembly machines have complex structures, with all multiple actuators being purely mechanically driven, making maintenance and modification inconvenient.

[0011] This application addresses the above-mentioned problems by developing a multi-station modified needle-making machine based on existing machines. This machine realizes the complete stamping process, including needle tongue steel strip feeding, tapering, and turning, as well as the feeding of semi-finished spinning needles, assembly of extrusion shafts, hook bending, and needle stacking for finished product storage. Under the premise of ensuring the feeding of semi-finished spinning needles, it completes the process of feeding the needle tongue of knitting needles and assembling the spinning needles to form the final finished spinning needle. Summary of the Invention

[0012] This invention provides a modified multi-station needle manufacturing machine, which aims to solve the problems of large space occupation and high investment in existing single-machine combined production lines for needle tongue processing and needle assembly.

[0013] This invention is implemented as follows: a modified multi-station needle manufacturing machine, comprising:

[0014] Needle processing unit and needle assembly unit mounted on the machine base;

[0015] The tongue-loading robot mounted on the machine is used to transfer the tongue processed by the tongue processing unit to the spinning needle assembly unit, where the spinning needle assembly unit assembles the tongue with the semi-finished spinning needle into a finished spinning needle.

[0016] Furthermore, the needle tongue processing unit includes:

[0017] Tongue hook conveyor turntable installed on the machine base;

[0018] The following modules are installed on the machine base and arranged sequentially around the outside of the hook conveyor turntable: a tapering module, a tongue material turning module, a tongue material bending module, a tongue material cupping module, a tongue material flattening module, a punching module, and a tail-cutting module. The hook conveyor turntable is used to transfer the tapered tongue material sequentially to the tongue material turning station, the tongue material bending station, the tongue material cupping station, the tongue material flattening station, the punching station, and the tail-cutting station. The hook conveyor turntable is equipped with multiple sets of tongue material clamps for fixing the hook.

[0019] Furthermore, the spinning needle assembly unit includes:

[0020] Assembly turntable mounted on the machine base;

[0021] The assembly turntable is arranged in sequence around the outside of the assembly turntable. The assembly turntable is used to transfer the semi-finished spinning needles conveyed by the needle feeding module to the extrusion shaft station, the hook station and the discharge station in sequence. The assembly turntable is equipped with multiple sets of spinning needle clamps to fix the semi-finished spinning needles.

[0022] Furthermore, the tongue-loading robotic arm includes:

[0023] A robotic arm base is mounted on the machine tool, and a robotic arm mounting seat is rotatably mounted on the robotic arm base via a mounting shaft;

[0024] The power mechanism used to drive the robot arm mounting base to swing up and down;

[0025] Rotate the robot body mounted on the robot arm mounting base;

[0026] A drive mechanism used to rotate the robot arm.

[0027] Furthermore, the robotic arm body includes grippers, gripper drive shafts, and stop screws. The grippers include an upper gripper blade, a lower gripper blade, and a tension spring. The gripper drive shaft is rotatably mounted on the robotic arm base. The upper and lower grippers are symmetrically arranged and rotatably connected to one end of the gripper drive shaft. A tension spring connects the upper and lower grippers to close them. A compression spring column is coaxially inserted within the gripper drive shaft. One end of the compression spring column is rotatably connected to the extension end of a first cylinder, and the other end of the compression spring column extends between the upper and lower grippers. The first cylinder is fixedly mounted on the robotic arm base. When the first cylinder extends, it drives the other end of the compression spring column to push the upper and lower grippers open. Two stop screws are provided and threaded onto the robotic arm mounting base. The two stop screws are located on both sides of the gripper drive shaft. A protrusion is provided on the lower surface of the gripper drive shaft, and the bottom ends of the two stop screws are located on the rotation trajectory of the protrusion.

[0028] Furthermore, the drive mechanism includes:

[0029] A bevel gear fixed on the gripper drive shaft;

[0030] A sector gear is rotatably mounted on a mounting shaft and meshes with a bevel gear, and a support rod is fixed on the sector gear;

[0031] An elastic rod is hinged at one end to a support rod, and the other end of the elastic rod is hinged to the base of the robot arm. The elastic rod includes two telescopically connected support rods and a tension spring connecting the two support rods.

[0032] Furthermore, the cone-shaped module includes:

[0033] A cone-shaped base is fixedly installed on the machine platform, and a slide is slidably installed on the cone-shaped base;

[0034] A tapered shaft is rotatably mounted on a slide block. A tapered sleeve is fixedly mounted on one end of the tapered shaft, which is used to process the tapered section of the round steel strip into a corresponding tapered shape.

[0035] A cone-shaped cylinder fixed on a slide block, wherein the piston rod of the cone-shaped cylinder is fixedly connected to the cone-shaped seat;

[0036] Power components used to drive the cone shaft to rotate;

[0037] A clamping component located on one side of the taper shaft is used to clamp the round steel strip, and the clamping component includes a clamping cylinder.

[0038] Furthermore, the power component includes a cone-making motor, a driving wheel, and a driven wheel. The driven wheel is slidably mounted on the cone-making shaft along the axial direction of the cone-making shaft. The cone-making motor is fixedly installed, and a driving wheel is fixed on its output shaft. The driving wheel and the driven wheel are connected by a transmission belt.

[0039] Furthermore, a feeding module is provided on one side of the cone-forming module on the machine platform for feeding round steel strips to the cone-forming module.

[0040] Furthermore, a straightening module is provided between the upper-level taper module and the feeding module on the machine platform, which is used to straighten the round steel strip conveyed by the feeding module to the taper module.

[0041] Compared with the prior art, the embodiments of this application have the following main advantages:

[0042] 1. The redesigned layout integrates the complete needle tongue processing process with the needle assembly, forming a multi-station needle making machine with a compact structure, reducing floor space and investment.

[0043] 2. Redesign key processes in needle tongue processing to break through bottleneck process cycle time limitations and thereby improve the overall cycle time;

[0044] 3. Lightweight single-unit structure: The original purely mechanical drive mechanism for starting and stopping the single unit has been eliminated. The actuators are directly driven by cylinders, simplifying the structure and making it more reliable, convenient, and easy to maintain. Attached Figure Description

[0045] Figure 1 This is a structural schematic diagram of a modified multi-station needle-making machine provided by the present invention;

[0046] Figure 2 This is a magnified view of point A in the diagram;

[0047] Figure 3 yes Figure 1 The front view;

[0048] Figure 4 This is a schematic diagram of the structure of the tongue-loading robot and the needle assembly unit in a modified multi-station needle making machine provided by the present invention;

[0049] Figure 5 This is a schematic diagram of the structure of the tongue-loading robot and the tongue processing unit in a modified multi-station needle-making machine provided by the present invention;

[0050] Figure 6 This is a schematic diagram of the tongue-loading robot in a modified multi-station needle-making machine provided by the present invention;

[0051] Figure 7 This is a schematic diagram of the tongue-loading robot of a modified multi-station needle-making machine provided by the present invention from another perspective;

[0052] Figure 8 This is a schematic diagram of the structure of the robotic arm body in a modified multi-station needle making machine provided by the present invention;

[0053] Figure 9 This is a schematic diagram of the cone-shaped module in a modified multi-station needle-making machine provided by the present invention;

[0054] Figure 10 This is a cross-sectional view of the cone-shaped module in a modified multi-station needle-making machine provided by the present invention.

[0055] Figure label annotations:

[0056] 1. Machine tool;

[0057] 2. Tongue-loading robot; 201. Robot base; 202. Gripper; 203. Gripper drive shaft; 204. Stop screw; 205. Upper gripper; 206. Lower gripper; 207. Tension spring; 208. Compression spring post; 209. First cylinder; 210. Sector gear; 211. Bevel gear; 212. Robot mounting base;

[0058] 3. Feeding module; 301. Feeding bracket;

[0059] 4. Straightening module; 401. Straightening seat; 402. Straightening roller; 403. Movable seat; 404. Adjusting bolt;

[0060] 5. Cone-driving module; 501. Cone-driving seat; 502. Slide; 503. Cone-driving shaft; 504. Cone sleeve; 505. Cone-driving cylinder; 506. Driven wheel; 507. Clamping cylinder;

[0061] 6. Cutting module; 608. Cutting cylinder

[0062] 7. Hook conveyor turntable;

[0063] 8. Tongue-shaped circular module

[0064] 9. Tongue material bending module;

[0065] 10. Tongue-thrusting bowl module;

[0066] 11. Tongue flattening module;

[0067] 12. Punching module;

[0068] 13. Tail-cutting module;

[0069] 14. Assemble the turntable;

[0070] 15. Needle feeding module;

[0071] 16. Extrusion shaft module;

[0072] 17. Hook module;

[0073] 18. Needle delivery module. Detailed Implementation

[0074] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0075] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0076] Example 1

[0077] This invention provides a modified multi-station needle manufacturing machine, such as... Figures 1-10 As shown, it includes:

[0078] Machine 1;

[0079] The needle tongue processing unit and the spinning needle assembly unit are installed on machine base 1;

[0080] The tongue-loading robot 2, installed on the machine tool 1, is used to transfer the tongue processed by the tongue processing unit to the spinning needle assembly unit, where the spinning needle assembly unit assembles the tongue with the semi-finished spinning needle into a finished spinning needle.

[0081] Understandably, by reconfiguring the layout to integrate the complete needle tongue processing process with the needle assembly, a multi-station needle making machine is formed, which has a compact structure and reduces the floor space and investment.

[0082] The needle tongue processing unit includes:

[0083] The hook conveyor turntable is installed on machine base 1;

[0084] The following modules are installed on the machine base 1 and arranged sequentially around the outside of the hook conveyor turntable: a tapering module 5, a tongue material turning module, a tongue material bending module, a tongue material turning module 9, a tongue material cupping module 10, a tongue material flattening module 11, a punching module 12, and a tail-cutting module 13. The hook conveyor turntable is used to transfer the tapered tongue material sequentially to the tongue material turning station, the tongue material bending station, the tongue material cupping station, the tongue material flattening station, the punching station, and the tail-cutting station. The hook conveyor turntable is equipped with multiple sets of tongue material clamps for fixing the tongue hook. The number of sets of tongue material clamps can be designed according to requirements. Each set of tongue material clamps can be independently controlled by electric, pneumatic, or other means. A tongue material cutting module 6 is installed on the machine base 1 between the tapering module 5 and the hook conveyor turntable.

[0085] It needs to be explained that after the round steel strip is tapered by the tapering module 5, it enters the hook conveyor turntable. The clamps on the hook conveyor turntable hold and fix the strip, and then the strip cutting module 6 cuts it. Next, the hook conveyor turntable transfers the strip to the strip turning station, where the strip turning module turns it. The hook conveyor turntable then transfers the strip to the strip bending station, where the strip bending module and the strip turning module 9 bend it. Finally, the hook conveyor turntable transfers the strip to the tongue cup punching station, where the tongue cup punching module 10 punches it. The tongue is punched in the bowl, and then the tongue material conveying turntable transfers the tongue material to the tongue material flattening station, where the tongue material flattening module 11 flattens it. Then, the tongue material conveying turntable transfers the tongue material to the punching station, where the punching module 12 punches it. Finally, the tongue material conveying turntable transfers the tongue material to the tail cutting station, where the tongue loading robot 2 moves to the gripping position, grips the needle tongue, and then the tail cutting module 13 cuts off the excess part of the needle tongue tail. After the clamps on the tongue material conveying turntable are released, the tongue loading robot 2 picks up the needle tongue and transfers it to the spinning needle assembly unit.

[0086] In this embodiment, the spinning needle assembly unit includes:

[0087] Assembly turntable 14 is installed on machine base 1;

[0088] A needle feeding module 15, an extrusion shaft module 16, a hook bending module 17, and a needle output module 18 are arranged sequentially around the outside of the assembly turntable 14. The assembly turntable 14 is used to transfer the semi-finished spinning needles conveyed by the needle feeding module 15 to the extrusion shaft station, the hook bending station, and the output station in sequence. The assembly turntable 14 is equipped with multiple sets of spinning needle clamps for fixing the semi-finished spinning needles. The number of sets of spinning needle clamps can be designed according to requirements, and each set of spinning needle clamps can be independently controlled by electric, pneumatic, or other means.

[0089] Specifically, the tongue-loading robot 2 clamps and transfers the needle tongue to the needle groove of the semi-finished spinning needle at the extrusion shaft station. The extrusion shaft module 16 extrudes a shaft and inserts it into the hole of the needle tongue and the semi-finished spinning needle to connect and assemble them. Then, the assembly turntable 14 transfers the semi-finished spinning needle and the needle tongue assembled on it to the hook bending station. The hook bending module 17 bends the end of the semi-finished spinning needle near the needle tongue to form the finished spinning needle. Then, the assembly turntable 14 transfers the finished spinning needle to the needle output station, where it is output by the needle output module 18.

[0090] In this embodiment, the actions of all modules can be driven by the multi-layered cams on the central spindle.

[0091] Example 2

[0092] This embodiment is based on embodiment 1, such as... Figures 1-10 As shown, specifically, the tongue-loading robotic arm 2 includes:

[0093] The robot arm base 201, which is mounted on the machine tool 1, can be fixed by bolts. The robot arm mounting seat 212 is rotatably mounted on the robot arm base 201 via a mounting shaft.

[0094] The power mechanism used to drive the robot arm mounting base 212 to swing up and down can be a crank-connecting rod mechanism, a main shaft driving a cam to rotate, etc.

[0095] Rotate the robot body mounted on the robot mounting base 212;

[0096] A drive mechanism used to rotate the robot arm body;

[0097] The robotic arm body includes a gripper 202, a gripper 202 drive shaft, and a stop screw 204. The gripper 202 includes an upper gripper 205, a lower gripper 206, and a tension spring 207. The gripper 202 drive shaft is rotatably mounted on the robotic arm base 201 via a bearing. The upper gripper 205 and lower gripper 206 are symmetrically arranged and each is rotatably connected to one end of the gripper 202 drive shaft. A connecting element is provided between the upper gripper 205 and lower gripper 206. A tension spring 207 is used to close the upper clamping blade 205 and the lower clamping blade 206. A tension spring 207 post can be integrally mounted on the upper clamping blade 205 and the lower clamping blade 206. Both ends of the tension spring 207 hook onto the tension spring 207 posts on the upper clamping blade 205 and the lower clamping blade 206, respectively. A pressure spring post 208 with a hook-shaped conveying turntable is coaxially and movably mounted within the drive shaft of the gripper 202. One end of the pressure spring post 208 with the hook-shaped conveying turntable is rotatably connected to the extension / retraction end of the first cylinder 209. The other end of the 208 hook conveyor turntable extends between the upper clamping blade 205 and the lower clamping blade 206. The first cylinder 209 is fixedly installed on the robot arm base 201. When the first cylinder 209 extends, it drives the other end of the spring column 208 hook conveyor turntable to push the upper clamping blade 205 and the lower clamping blade 206 open. Two stop screws 204 are provided and threaded onto the robot arm mounting base 212. The two stop screws 204 are located on both sides of the drive shaft of the gripper 202. The lower surface of the drive shaft of the gripper 202 is provided with a protrusion, and the bottom ends of the two stop screws 204 are located on the rotation trajectory of the protrusion. It should be explained that when the drive shaft of the gripper 202 rotates, the protrusion can only move between the bottom ends of the two stop screws 204, so that the two stop screws 204 ensure the rotation angle of the drive shaft of the gripper 202. Of course, by rotating the two stop screws 204 to adjust the height position of their bottom ends, the rotation angle of the drive shaft of the gripper 202 can be adjusted.

[0098] In this embodiment, the driving mechanism includes:

[0099] A bevel gear 211 fixed to the drive shaft of the gripper 202;

[0100] A sector gear 210 is rotatably mounted on a mounting shaft and meshes with a bevel gear 211, and a support rod is fixed on the sector gear 210;

[0101] An elastic rod is hinged at one end to a support rod, and at the other end to a robot arm base 201. The elastic rod includes two telescopically connected support rods and a tension spring connecting the two support rods. When the robot arm mounting base 212 is driven to swing up and down via a power mechanism, the gripper 202 transfers the needle tongue to the extrusion shaft assembly. The bevel gear 211 on the gripper 202's drive shaft also swings up and down. Because the bevel gear 211 meshes with the sector gear 210 and the elastic rod pulls the sector gear 210, the bevel gear 211 drives the gripper 202's drive shaft to rotate in both directions. Simultaneously, because it needs to pass through two... The stop screw 204 ensures the rotation angle of the drive shaft of the gripper 202. When the drive shaft of the gripper 202 is restricted by the stop screw 204 and can no longer rotate, the bevel gear 211 will drive the sector gear 210 to rotate. This is the function of the elastic pull rod. The drive shaft of the gripper 202 drives the gripper 202 to rotate back and forth. When it is necessary to clamp the workpiece, the first cylinder 209 extends and drives the spring column 208 to push the upper clamping knife 205 and the lower clamping knife 206 to open. After the first cylinder 209 retracts, the tension of the tension spring 207 causes the upper clamping knife 205 and the lower clamping knife 206 to close, thus clamping the workpiece.

[0102] In specific implementation, the cone-shaped module 5 includes:

[0103] A cone-shaped base 501 is fixedly installed on the machine base 1, and a slide block 502 is slidably installed on the cone-shaped base 501. The sliding installation method can be adopted by the cooperation of a slider and a slide groove.

[0104] A tapered shaft 503 is rotatably mounted on a slide block 502. A tapered sleeve 504 is fixedly mounted on one end of the tapered shaft 503, preferably in a detachable installation manner, for processing the tapered section of the round steel strip into a corresponding tapered shape.

[0105] A cone-making cylinder 505 is fixed on the slide block 502. The piston rod of the cone-making cylinder 505 is fixedly connected to the cone-making seat 501 and can be fixed by bolts. When the cone-making cylinder 505 repeatedly extends and retracts, it can drive the slide block 502 to reciprocate. The slide block 502 drives the cone-making shaft 503 and the cone sleeve 504 to reciprocate to perform cone-making.

[0106] Power components used to drive the cone shaft 503 to rotate;

[0107] A clamping component located on one side of the taper shaft 503 is used to clamp the round steel strip. The clamping component includes a clamping cylinder 507, which controls the clamping and loosening actions. For example, the telescopic end of the clamping cylinder 507 is fixedly connected to a pressure block, and a fixing block is set below the pressure block. The round steel strip is located between the pressure block and the fixing block. The clamping cylinder 507 drives the pressure block downward to cooperate with the fixing block to clamp and fix the round steel strip, and assists the reciprocating motion of the cone sleeve 504 to perform tapping.

[0108] The power components include a cone-making motor, a drive wheel, and a driven wheel 506. The driven wheel 506 is slidably mounted on the cone-making shaft 503 along the axial direction of the cone-making shaft 503. It can be slidably mounted by means of a slider and a slide rail. The cone-making motor is fixedly mounted and the drive wheel is fixed on its output shaft. The cone-making motor can be fixed to the machine base 1 by bolts. The drive wheel and the driven wheel 506 are connected by a transmission belt. When the cone-making motor is started, the cone-making motor drives the drive wheel to rotate. The drive wheel rotates the driven wheel 506 through the transmission belt. The driven wheel 506 drives the cone-making shaft 503 to rotate.

[0109] In this embodiment, the cutting module 6 includes a tongue cutting cylinder and a cutting blade, and the cutting blade is driven by the tongue cutting cylinder to cut the round steel strip;

[0110] The specific working method is as follows: the round steel strip passes through the center of the taper shaft 503, the taper motor transmits power to the driven wheel 506 through the drive wheel, the driven wheel 506 drives the taper shaft 503 to rotate around the center of rotation, the taper cylinder 505 repeatedly extends and shortens, driving the slide 502 to move back and forth along the center direction of the taper shaft 503, so that the cone sleeve 504 rubs back and forth on the taper section of the round steel strip, so that the taper section of the round steel strip is processed into the corresponding cone shape. After the taper is completed, the round steel strip is pushed forward to the tongue hook conveyor turntable, where it is clamped by the tongue material clamp on the tongue hook conveyor turntable. Finally, the tongue material cutting cylinder drives the cutter to cut it.

[0111] Preferably, the machine base 1 is provided with a feeding module 3 on one side of the cone-forming module 5 for feeding round steel strips to the cone-forming module 5. The feeding module 3 includes a feeding bracket 301, on which a round steel strip feeding roller can be placed.

[0112] Furthermore, a straightening module 4 is provided between the upper conizing module 5 and the feeding module 3 of the machine base 1. This straightening module 4 is used to straighten the round steel strip conveyed by the feeding module 3 to the conizing module 5. The straightening module 4 includes a straightening base 401 fixedly connected to the machine base 1 and multiple straightening components mounted on the straightening base 401. Each straightening component includes two rows of straightening rollers 402 symmetrically arranged. The round steel strip is located between the two rows of straightening rollers 402. One row of straightening rollers 402 is rotatably mounted on the straightening base 401, and the other row of straightening rollers 402 is rotatably mounted on the movable base 403. The movable seat 403 is slidably mounted on the straightening seat 401. An adjusting bolt 404 is threaded onto the straightening seat 401. One end of the adjusting bolt 404 abuts against the movable seat 403. By rotating the adjusting bolt 404 to push the movable seat 403, the distance between the two rows of straightening rollers 402 can be adjusted, thereby adjusting the force on the round steel strip. In this embodiment, two straightening components are provided. The two rows of straightening rollers 402 of one straightening component are located on the front and rear sides of the round steel strip, and the two rows of straightening rollers 402 of at least one straightening component are located on the upper and lower sides of the round steel strip.

[0113] The turning module includes: a turning motor, a turning drive wheel and a driven wheel, a rocker arm, a cam follower, a turning cone sleeve, and a turning rotary shaft. The specific working method is as follows: the steel strip after tapering is switched to the turning station through the clamp on the tongue material conveying turntable. The turning motor transmits power to the driven wheel through the drive wheel, driving the turning shaft to rotate around the rotation center. At the same time, the rocker arm pushes the turning assembly forward through the lever rotation center, contacting the tip of the tapered steel strip for turning. After the turning process is completed, the rocker arm returns to the initial position, thereby causing the turning assembly to return.

[0114] The tongue bending module, tongue rounding module 9, tongue cup punching module 10, tongue flattening module 11, punching module 12, tail cutting module 13, needle feeding module 15, extrusion shaft module 16, hook bending module 17, and needle ejection module 18 can adopt the technology of existing horizontal needle making machines. The principle is the same, and the structure can realize the function. There are no excessive restrictions, and they will not be described in detail.

[0115] In summary, this invention provides a modified multi-station needle manufacturing machine, the working principle of which is as follows:

[0116] After the round steel strip is fed by the feeding module 3 and straightened by the straightening module 4, it passes through the taper shaft 503 and the taper sleeve 504, and is tapped by the taper module 5. Then the tongue material is processed by the tongue material rounding module, the tongue material punching and bending module, the tongue material rounding module 9, the tongue punching bowl module 10, the tongue material flattening module 11, the punching module 12 and the tail cutting module 13. Then the tongue loading robot 2 transfers the needle tongue to the spinning needle assembly unit, where the spinning needle assembly unit assembles the needle tongue and the semi-finished spinning needle to obtain the finished spinning needle.

[0117] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit the scope of protection of the invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of the present invention according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of the present invention. These technical solutions also fall within the scope of protection of the present invention.

Claims

1. A modified multi-station needle-making machine, comprising a machine base, characterized in that, Also includes: Needle processing unit and needle assembly unit mounted on the machine base; The tongue-loading robot mounted on the machine is used to transfer the tongue processed by the tongue processing unit to the spinning needle assembly unit, where the spinning needle assembly unit assembles the tongue with the semi-finished spinning needle into a finished spinning needle. The needle tongue processing unit includes: Tongue hook conveyor turntable installed on the machine base; The following modules are installed on the machine base and arranged sequentially around the outside of the tongue hook conveyor turntable: a tapering module, a tongue material turning module, a tongue material bending module, a tongue material cupping module, a tongue material flattening module, a punching module, and a tail-cutting module. The tongue hook conveyor turntable is used to transfer the tapered tongue material sequentially to the tongue material turning station, the tongue material bending station, the tongue material cupping station, the tongue material flattening station, the punching station, and the tail-cutting station. The tongue hook conveyor turntable is equipped with multiple sets of tongue material clamps for fixing the tongue material. The spinning needle assembly unit includes: Assembly turntable mounted on the machine base; The assembly turntable is arranged in sequence around the outside of the assembly turntable. The assembly turntable is used to transfer the semi-finished spinning needles conveyed by the needle feeding module to the extrusion shaft station, the hook station and the discharge station in sequence. The assembly turntable is equipped with multiple sets of spinning needle clamps for fixing the semi-finished spinning needles. The tongue-loading robot grips and transfers the needle tongue to the needle groove of the semi-finished spinning needle at the extrusion shaft station. A shaft is extruded by the extrusion shaft module and inserted into the hole of the needle tongue and the semi-finished spinning needle to connect and assemble them. Then, the assembly turntable transfers the semi-finished spinning needle and the needle tongue assembled on it to the hook bending station. The hook bending module bends the end of the semi-finished spinning needle near the needle tongue to form the finished spinning needle. Then, the assembly turntable transfers the finished spinning needle to the discharge station, where it is output by the needle output module. The cone-driving module includes: A cone-shaped base is fixedly installed on the machine platform, and a slide is slidably installed on the cone-shaped base; A tapered shaft is rotatably mounted on a slide block. A tapered sleeve is fixedly mounted on one end of the tapered shaft, which is used to process the tapered section of the round steel strip into a corresponding tapered shape. A cone-shaped cylinder fixed on a slide block, wherein the piston rod of the cone-shaped cylinder is fixedly connected to the cone-shaped seat; A clamping component located on one side of the taper shaft is used to clamp the round steel strip, and the clamping component includes a clamping cylinder; A power component is used to drive the cone shaft to rotate. The power component includes a cone motor, a drive wheel and a driven wheel. The driven wheel is slidably mounted on the cone shaft along the axial direction of the cone shaft. The cone motor is fixedly installed and a drive wheel is fixed on its output shaft. The drive wheel and the driven wheel are connected by a transmission belt.

2. The modified multi-station needle manufacturing machine as described in claim 1, characterized in that, The tongue-loading robotic arm includes: A robotic arm base is mounted on the machine tool, and a robotic arm mounting seat is rotatably mounted on the robotic arm base via a mounting shaft; The power mechanism used to drive the robot arm mounting base to swing up and down; Rotate the robot body mounted on the robot arm mounting base; A drive mechanism used to rotate the robot arm.

3. The modified multi-station needle-making machine as described in claim 2, characterized in that, The robotic arm body includes grippers, gripper drive shafts, and stop screws; The gripper includes an upper gripper blade, a lower gripper blade, and a tension spring. The gripper drive shaft is rotatably mounted on the robot arm mounting base. The upper and lower grippers are symmetrically arranged and rotatably connected to one end of the gripper drive shaft. A tension spring is connected between the upper and lower grippers to close the upper and lower grippers. A spring column is coaxially and movably inserted inside the gripper drive shaft. One end of the spring column is rotatably connected to the telescopic end of the first cylinder, and the other end of the spring column extends between the upper and lower grippers. The first cylinder is fixedly installed on the robot arm base. When the first cylinder extends, it drives the other end of the spring column to push the upper and lower grippers open. The stop screws are provided in two form and are threaded onto the robot arm mounting base. The two stop screws are located on both sides of the gripper drive shaft. The lower surface of the gripper drive shaft is provided with a protrusion, and the bottom ends of the two stop screws are located on the rotation trajectory of the protrusion.

4. The modified multi-station needle manufacturing machine as described in claim 3, characterized in that, The drive mechanism includes: A bevel gear fixed on the gripper drive shaft; A sector gear is rotatably mounted on a mounting shaft and meshes with a bevel gear, and a support rod is fixed on the sector gear; An elastic rod is hinged at one end to a support rod, and the other end of the elastic rod is hinged to the base of the robot arm. The elastic rod includes two telescopically connected support rods and a tension spring connecting the two support rods.

5. The modified multi-station needle-making machine as described in claim 1, characterized in that, The machine platform is equipped with a feeding module on one side of the cone-forming module, which is used to feed round steel strips to the cone-forming module.

6. The modified multi-station needle manufacturing machine as described in claim 5, characterized in that, A straightening module is provided on the machine base between the cone-forming module and the feeding module, which is used to straighten the round steel strip conveyed by the feeding module to the cone-forming module.

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