Metal wire drawing method, device, equipment and medium

Abstract

The invention relates to the technical field of metal wire drawing, in particular to a metal wire drawing method, device and equipment, a medium and a pointing structure applied to metal wire drawing, the pointing structure comprises a conical roller rotating frame and a conical roller assembly, and the conical roller assembly comprises two conical rollers symmetrically installed on the conical roller rotating frame; when the conical roller rotating frame is driven to drive the conical roller assembly to rotate, a pointed conical space is formed between the two conical rollers in a fitting mode, and the pointed conical space is used for rolling the wire diameter of the head of a metal wire penetrating into the pointed conical space to be small. Therefore, the pointing structure matched with the structural parameters is selected according to the initial wire diameter and the target wire diameter of the metal wire to be drawn and the wire drawing die, pointing is rapidly completed, the metal wire penetrates through the wire drawing die, drawing diameter changing is conducted, and the wire drawing efficiency of the metal wire is improved.

Description

Technical Field

[0001] The present application relates to the technical field of metal wire drawing, and in particular to a metal wire drawing method, device, equipment and medium. Background Art

[0002] As the quality requirements of various industries for metal fine wires continue to increase, the wire drawing process is developing towards higher precision and better performance. When drawing wires, the metal wire needs to pass through a wire drawing die with a hole diameter smaller than the wire diameter, and then the metal wire is pulled through the die to reduce the diameter, and finally drawn into micron-level fine wires for use in semiconductor packaging.

[0003] Before the metal wire passes through the wire drawing eye die, the wire diameter of the head of the metal wire needs to be reduced so that it can pass through the eye die. The process of reducing the wire diameter of the head of the wire is called sharpening. At present, metal wires are generally sharpened using the method of a core rolling mill, that is, rows of slots are processed on the upper and lower rollers. The slots are arranged in order from large to small, and the aperture of the same hole gradually changes from large aperture to small aperture according to the diameter reduction ratio. In this way, the head of the metal wire is inserted into the part with a relatively large aperture in the slot hole. As the rollers rotate, the wire diameter of the head of the metal wire is gradually reduced. The disadvantages of this method are: (1) The rolling tip is not continuous. If you want to obtain a larger diameter reduction ratio, you need to go through multiple slots and repeat the operation; (2) The wire needs to be rotated continuously, because the slots are formed by fitting the holes of the upper and lower rollers, and there must be a gap in the middle. If the wire is not rotated, the diameter reduction effect of the wire in the vertical direction will be poor, while the diameter reduction effect in the left and right directions will be poor, and even the cobra burr phenomenon will appear. Rotating the wire not only increases the workload but may also damage the metal wire by twisting it continuously; (3) The surface of the wire is damaged by rolling the wire tip, because the wire is rolled by continuously rotating the wire for multiple times, it is easy to cause unevenness, wrinkles, bends and other defects on the wire surface. This leads to low wire drawing efficiency. Summary of the invention

[0004] In order to overcome the deficiencies in the prior art, the present application provides a metal wire drawing method, device, equipment and medium, which can use the designed tipping structure to quickly and stably process a pointed tip on the head of the metal wire so that it can pass through the drawing die, and then draw the wire to reduce the diameter, thereby improving the drawing efficiency.

[0005] In a first aspect, the present application provides a metal wire drawing method, which is applied to a rolling point structure for metal wire drawing, wherein the rolling point structure comprises a tapered roller rotating frame and a tapered roller assembly, wherein the tapered roller assembly comprises two tapered rollers symmetrically mounted on the tapered roller rotating frame; wherein, when the tapered roller rotating frame is driven to rotate with the tapered roller assembly, the two tapered rollers rotate and fit a tapered rolling point space, so as to reduce the wire diameter of the head of the metal wire passing through the tapered rolling point space; the method comprises the following steps:

[0006] Selecting a metal wire to be drawn, and selecting an appropriate wire drawing die according to the target wire diameter of the metal wire; wherein the diameter of the sizing zone of the selected wire drawing die is equal to the target wire diameter;

[0007] Selecting a rolling tip structure with matching structural parameters according to the initial wire diameter, the target wire diameter and the length of the sizing zone of the wire drawing die;

[0008] After the wire diameter of the head of the metal wire is reduced based on the point rolling structure, the wire is passed through the sizing area of ​​the wire drawing die to be drawn and reduced in diameter.

[0009] In a possible implementation, the rolling tip structure of the adaptive structural parameters is selected by the following formula:

[0010] D1>f>δ>D2

[0011]

[0012] Among them, f represents the initial wire diameter of the metal wire, δ represents the target wire diameter of the metal wire for drawing, D1 represents the maximum diameter of the tapered space of the rolling point fitted by the rolling point structure, D2 represents the minimum diameter of the tapered space of the rolling point fitted by the rolling point structure, a represents the taper angle of the tapered roller in the rolling point structure, H represents the length of the sizing zone of the drawing die, and ΔL represents the length of the metal wire extending out of the drawing die.

[0013] In a possible implementation manner, the initial wire diameter of the metal wire is 10 mm ≥ f ≥ 0.5 mm.

[0014] In a possible implementation manner, the head diameter of the metal wire is reduced based on the tipping structure, comprising the following steps:

[0015] When the surface of the tapered roller is made of a hard material, the head diameter of the metal wire is squeezed into a tapered shape based on the rolling point structure;

[0016] or when the surface of the tapered roller is sprayed with abrasive, the head diameter of the metal wire is ground into a cone based on the rolling point structure;

[0017] Alternatively, when the surface of the tapered roller is a blade, the head diameter of the metal wire is turned into a tapered shape based on the point rolling structure.

[0018] In a possible implementation manner, the rolling point structure further includes:

[0019] An inner gear ring, wherein a passage for passing a metal wire is reserved in the middle of the inner gear ring;

[0020] Conical roller gears, the small bottom end of each of the conical rollers is respectively meshed with the inner gear ring through the conical roller gears;

[0021] A tapered roller bottom end bearing is arranged at one end of the tapered roller rotating frame, and the large bottom surface end of each tapered roller is connected to the tapered roller rotating frame through the tapered roller bottom end bearing;

[0022] A motor, the other end of the tapered roller rotating frame is connected to the motor, when the motor drives the tapered roller rotating frame to rotate, the tapered roller revolves around the rotating axis of the tapered roller rotating frame and rotates at the same time, fitting a tapered space with a sharp rolling point;

[0023] The conical roller rotating frame and the conical roller assembly are arranged in the casing, and the inner gear ring is installed on the casing.

[0024] In a possible implementation, in the rolling point structure, the tapered roller rotating frame includes a rotating shaft and a rotating disk fixed together, the rotating disk is symmetrically provided with two circular slots at a certain distance outside the rotating center of the tapered roller rotating frame, and a fixed shaft is provided at the large bottom surface end of the tapered roller, and the fixed shaft is installed in the slot through a tapered roller bottom end bearing;

[0025] A bearing bracket is also arranged inside the casing, and the conical roller rotating frame is connected to the bearing bracket through a rotating frame bearing installed on the rotating shaft, and is meshed with a driving gear connected to the output end of the motor through a rotating frame gear installed on the rotating shaft; a supporting inner ring is installed at the metal wire entrance of the casing, and a conical roller top end bearing is installed on the fixed shaft at the small bottom end of the conical roller. When the conical roller revolves, the outer surface of the conical roller top end bearing is pressed on the supporting inner ring and rotates.

[0026] In a possible embodiment, in the rolling point structure, the bearing support includes a first bearing support and a second bearing that are spaced apart, and the tapered roller rotating frame is connected to the first bearing support and the second bearing support respectively through a first rotating frame bearing and a second rotating frame bearing; and the rotating frame gear is arranged between the first rotating frame bearing and the second rotating frame bearing.

[0027] In a second aspect, the present application provides a metal wire drawing device, which is applied to a rolling point structure for metal wire drawing, wherein the rolling point structure comprises a tapered roller rotating frame and a tapered roller assembly, wherein the tapered roller assembly comprises two tapered rollers symmetrically mounted on the tapered roller rotating frame; wherein, when the tapered roller rotating frame is driven to rotate with the tapered roller assembly, a rolling point conical space is fitted between the two tapered rollers, which is used to reduce the head diameter of the metal wire passing through the rolling point conical space; the device comprises:

[0028] A first selection module is used to select a metal wire to be drawn, and select an appropriate drawing die according to a target wire diameter of the metal wire; wherein the diameter of the sizing zone of the selected drawing die is equal to the target wire diameter;

[0029] A second selection module is used to select a rolling point structure with matching structural parameters according to the initial wire diameter, the target wire diameter and the length of the sizing zone of the wire drawing die;

[0030] The drawing module is used to reduce the wire diameter of the head of the metal wire based on the point rolling structure, and then pass it through the sizing area of ​​the wire drawing die to perform drawing and diameter reduction.

[0031] In a third aspect, the present application provides an electronic device, comprising: a processor, a memory and a bus, wherein the memory stores machine-readable instructions executable by the processor, and when the electronic device is running, the processor and the memory communicate through the bus, and when the machine-readable instructions are executed by the processor, the steps of the metal wire drawing method as described in any one of the first aspects are performed.

[0032] In a fourth aspect, the present application provides a computer-readable storage medium having a computer program stored thereon, and when the computer program is executed by a processor, the steps of the metal wire drawing method as described in any one of the first aspects are executed.

[0033] A metal wire drawing method, device, equipment and medium provided in the present embodiment are applied to a sharpening structure for metal wire drawing, wherein the sharpening structure comprises a tapered roller rotating frame and a tapered roller assembly, wherein the tapered roller assembly comprises two tapered rollers symmetrically mounted on the tapered roller rotating frame; wherein, when the tapered roller rotating frame is driven to rotate with the tapered roller assembly, a tapered space for sharpening is fitted between the two tapered rollers, and the head wire diameter of the metal wire passing through the tapered space for sharpening can be reduced, and then a sharpening structure with adaptive structural parameters is selected according to the initial wire diameter, target wire diameter and drawing die of the metal wire to be drawn, so that the head wire diameter of the metal wire can be quickly reduced so that it can pass through the drawing die and be drawn and reduced in diameter, thereby improving the efficiency of metal wire drawing. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0035] Figure 1 A flow chart of a metal wire drawing method according to an embodiment of the present application is shown;

[0036] Figure 2 A schematic structural diagram of a rolling tip structure according to an embodiment of the present application is shown;

[0037] Figure 3 A cross-sectional view of a rolling tip structure according to an embodiment of the present application is shown;

[0038] Figure 4 A schematic diagram of the connection structure between the tapered roller rotating frame and the motor according to an embodiment of the present application is shown;

[0039] Figure 5 A schematic diagram of the connection structure between the tapered roller rotating frame and the tapered roller according to an embodiment of the present application is shown;

[0040] Figure 6 A schematic diagram of the connection structure between the tapered roller and the inner gear ring according to an embodiment of the present application is shown;

[0041] Figure 7 A schematic diagram showing the connection structure between the tapered roller and the supporting inner ring according to an embodiment of the present application is shown.

[0042] Figure 8 A schematic structural diagram of a wire drawing die according to an embodiment of the present application is shown;

[0043] Fig. 9 A schematic diagram of the structure of a tapered space formed by rotating and fitting a tapered roller according to an embodiment of the present application is shown;

[0044] Fig.10 A schematic structural diagram of a metal wire drawing device according to an embodiment of the present application is shown;

[0045] Fig.11 A structural block diagram of an electronic device described in an embodiment of the present application is shown.

[0046] Description of main component symbols:

[0047] 1. Metal wire, 2. Machine casing, 3. Internal gear ring, 4. Conical roller gear, 5. Conical roller, 6. Conical roller bottom end bearing, 7. Conical roller rotating frame, 8. First bearing support frame, 9. First rotating frame bearing, 10. Rotating frame gear, 11. Second bearing support frame, 12. Second rotating frame bearing, 13. Driving gear, 14. Motor, 15. Support inner ring, 16. Conical roller top end bearing, 17. Pointed conical space, 18. Wire drawing die. DETAILED DESCRIPTION

[0048] To make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. It should be understood that the drawings in the present application only serve the purpose of explanation and description and are not used to limit the scope of protection of the present application. In addition, it should be understood that the schematic drawings are not drawn in real proportion. The flowchart used in this application shows the operations implemented according to some embodiments of the present application. It should be understood that the operations of the flowchart can be implemented out of sequence, and the steps without logical context can be reversed in order or implemented simultaneously. In addition, those skilled in the art can add one or more other operations to the flowchart under the guidance of the content of the present application, or remove one or more operations from the flowchart.

[0049] In addition, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application claimed for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present application.

[0050] It should be noted that the term "comprising" will be used in the embodiments of the present application to indicate the existence of the features declared thereafter, but does not exclude the addition of other features.

[0051] In view of the technical problems raised by the background technology, the present application provides a metal wire drawing method, device, equipment and medium, which can select a rolling tip structure with adaptive structural parameters according to the initial wire diameter, target wire diameter and drawing die of the metal wire to be drawn, and quickly reduce the head wire diameter of the metal wire so that it can pass through the drawing die for drawing and diameter reduction, thereby improving the metal wire drawing efficiency.

[0052] In one embodiment, see the attached specification Figure 1 The present application provides a metal wire drawing method, which is applied to a rolling point structure for metal wire drawing, wherein the rolling point structure comprises a tapered roller rotating frame and a tapered roller assembly, wherein the tapered roller assembly comprises two tapered rollers symmetrically mounted on the tapered roller rotating frame; wherein, when the tapered roller rotating frame is driven to rotate with the tapered roller assembly, a rolling point conical space is fitted between the two tapered rollers, which is used to reduce the head diameter of the metal wire passing through the rolling point conical space, and the method comprises the following steps:

[0053] S1. Select a metal wire to be drawn, and select a suitable wire drawing die according to the target wire diameter of the metal wire; wherein the diameter of the sizing zone of the selected wire drawing die is equal to the target wire diameter;

[0054] S2, selecting a rolling point structure with matching structural parameters according to the initial wire diameter, the target wire diameter and the length of the sizing zone of the wire drawing die;

[0055] S3, after the wire diameter of the head of the metal wire is reduced based on the point rolling structure, the wire is passed through the sizing area of ​​the wire drawing die to be drawn and reduced in diameter.

[0056] In order to clearly understand the technical solution of the embodiment of the present application, the tipping structure of the metal wire drawing used in the present application can be described first. Figure 2 And the instruction manual Figure 3 In one embodiment, the rolling structure is mainly composed of a casing 2 and a conical roller assembly and a conical roller rotating frame 7 arranged inside the casing 2; the conical roller assembly includes two conical rollers 5 symmetrically installed on the conical roller rotating frame 7; wherein, one end of the conical roller rotating frame 7 is connected to the motor 14, and the other end is connected to the large bottom end of the conical roller 5 through the conical roller bottom end bearing 6, the casing 2 is provided with an inner gear ring 3 at the end facing the entrance of the metal wire 1, and a channel for passing the metal wire 1 is left in the middle, the small bottom end of the conical roller 5 is meshed with the inner gear ring 3 through a conical roller gear 4, and when the motor 14 drives the conical roller rotating frame 7 to rotate, the two conical rollers 5 revolve around the rotating axis of the conical roller rotating frame 7 and rotate at the same time, and fit a rolling cone space 17 to reduce the head wire diameter of the metal wire 1.

[0057] For details, see the attached manual. Figure 2 And the instruction manual Figure 4 The conical roller rotating frame 7 is installed on the bearing support frame arranged in the casing 2 through the rotating frame bearing, and is meshed with the driving gear 13 connected to the output end of the motor 14 through the rotating frame gear 10, so that when the motor 14 is started, the driving gear 13 is driven to rotate, and the driving gear 13 drives the rotating frame gear 10 meshed therewith to rotate, and the rotating frame gear 10 drives the conical roller rotating frame 7 to rotate.

[0058] Among them, in order to improve the rotation stability and rotation accuracy of the tapered roller rotating frame 7, the rotating frame bearing is preferably multiple. This is because if there is only one rotating frame bearing, all the loads (the tapered roller rotating frame 7 itself and the tapered roller 5 driven by it) are concentrated on this one point, which is easy to cause local overload of the bearing, affecting its service life and rotation stability, and the rotation instability is often accompanied by the generation of vibration, which in turn affects the subsequent tapered roller rotating frame 7 to drive the tapered roller 5 to rotate and roll the metal wire to the point. In one embodiment, the rotating frame bearing includes a first rotating frame bearing 9 and a second rotating frame bearing 12, and the bearing support frame includes a first bearing support frame 8 and a second bearing support frame 11 arranged at intervals, the first rotating frame bearing 9 is connected to the first bearing support frame 8, and the second rotating frame bearing 12 is connected to the second bearing support frame 11, so that the load (the tapered roller rotating frame 7 itself and the tapered roller 5 driven by it) can be dispersed to two support points, which plays a role of stable support, avoids vibration caused by low stability, and ensures the rotation accuracy of the tapered roller rotating frame 7.

[0059] See the instruction manual Figure 5 The conical roller rotating frame 7 includes a rotating shaft and a rotating disk fixed together. The rotating disk is provided with a slotted hole on a side facing the inner gear ring 3 and close to the edge. A fixed shaft is provided at the large bottom end of the conical roller 5. The fixed shaft is installed in the slotted hole through the conical roller bottom end bearing 6. Two slotted holes are symmetrically arranged relative to the rotation center of the conical roller rotating frame 7, and are used to install two symmetrically arranged conical rollers.

[0060] See the instruction manual Figure 6 The inner gear ring 3 is arranged at one end of the housing 2 facing the entrance of the metal wire 1, and a circular hole is arranged in the middle of the inner gear ring 3 for installing the tapered roller gear 4 and for passing the metal wire 1. The inner gear ring 3 is also provided with a flange for installing the inner gear ring 3 and the housing 2. The small bottom end of the tapered roller 5 is meshed with the inner gear ring 3 through the tapered roller gear 4.

[0061] See the instruction manual Figure 7In order to improve the structural rigidity and motion stability of the conical roller 5 during revolution, it is necessary to apply a supporting force from the revolution center axis outward to the small lower surface end of the conical roller 5, and the conical roller 5 is supported together with the conical roller bottom end bearing 6, thereby improving the structural rigidity and motion stability of the conical roller 5 during revolution. The supporting inner ring 15 is arranged at one end of the housing 2 facing the inlet of the metal wire 1, and the supporting inner ring 15 is provided with a center hole for the inlet of the metal wire 1 to pass through, and an outer cylindrical surface with the rotation center of the conical roller rotating frame 7 as the central axis is arranged. The conical roller top bearing 16 is installed on the fixed shaft of the conical roller 5, and the outer cylindrical surface of the conical roller top bearing 16 is tangent to the outer cylindrical surface of the supporting inner ring 15. When the conical roller 5 revolves around the rotation center of the conical roller rotating frame 7, the outer cylindrical surface of the conical roller top bearing 16 presses on the outer cylindrical surface of the supporting inner ring 15 to rotate, thereby improving the structural rigidity and motion stability of the conical roller 5. The supporting inner ring 15 is also provided with a flange for mounting the supporting inner ring 15 on the housing 2 .

[0062] When the motor 14 drives the conical roller rotating frame 7 to rotate, the conical roller 5 revolves around the rotating shaft of the conical roller rotating frame 7. Since the conical roller 5 is meshed with the inner gear ring 3, while the conical roller 5 revolves around the rotating shaft of the conical roller rotating frame 7, the conical roller 5 also rotates. When the conical roller 5 rotates at high speed, a pointed conical space 17 is fitted. When the head of the metal wire is inserted, a pointed tip can be processed through the continuous rotation, extrusion or grinding of the conical roller 5 to achieve the purpose of sharpening. Among them, the conical roller assembly can be set as one set or two or more sets can be symmetrically set. Although setting multiple sets of conical roller assemblies increases the cost compared to setting one set of conical roller assemblies, it can improve the efficiency of metal wire sharpening. The number of conical roller assemblies to be set is selected according to the application requirements, and this application does not limit or fix this.

[0063] In step S1, a suitable wire drawing die is selected according to the target wire diameter of the metal wire to be drawn. For example, in one embodiment, the metal wire to be drawn is a bonding wire blank rod, which is the original material for manufacturing bonding wires. The bonding wire is a metal thin wire widely used in the electronic industry such as semiconductor packaging, and is mainly used to achieve electrical connection between the chip and the packaging substrate. The bonding wire blank rod is drawn into a thin wire that meets the bonding requirements through a wire drawing process. For example, in semiconductor packaging, depending on the different requirements of the chip, the diameter of the bonding wire may be between a dozen microns and several dozen microns. The structure of the wire drawing die is as shown in the attached manual. Figure 8As shown, it is mainly composed of a compression zone including an inlet and a sizing zone including an outlet, wherein the inlet has a larger aperture to facilitate the smooth entry of the metal wire into the wire drawing die, and the aperture of the compression zone gradually decreases to gradually reduce the wire diameter of the metal wire; the sizing zone determines the diameter of the metal wire finally drawn, and the aperture of the outlet is larger than the aperture of the sizing zone, so that the drawn metal wire can smoothly leave the wire drawing die to avoid scratches or deformation. Therefore, the aperture of the sizing zone of the wire drawing die selected should be equal to the target wire diameter of the metal wire to be drawn. It should be noted that in order to help maintain the stability of the process throughout the wire drawing process, the target wire diameter of the metal wire is between 85% and 95% of the original wire diameter, that is, the diameter reduction ratio is in the range of 5% to 15%, to avoid problems such as uneven wire diameter and easy breakage due to excessive diameter reduction.

[0064] In step S2, when selecting a pointed structure with adapted structural parameters, the following conditions need to be met: the head of the metal wire after pointed rolling can smoothly pass through the sizing area of ​​the selected wire drawing die, and a certain length must be reserved to facilitate clamping and pulling it outward.

[0065] In one embodiment, the length of the sizing zone of the selected wire drawing die is H, the length of the metal wire head extending out of the wire drawing die is ΔL, the initial wire diameter of the metal wire is f, the target wire diameter of the metal wire drawing is δ, and the structure of the tapered space formed by rotating the tapered roller is as shown in the attached manual. Fig. 9 As shown, the maximum diameter of the tapered space fitted by the tapered structure is D1, and the minimum diameter of the tapered space fitted by the tapered structure is D2.

[0066] If the metal wire can be smoothly inserted into the tapered space formed by the rotation of the tapered roller in the rolling structure, it is necessary to ensure that the maximum diameter D1 of the tapered space is greater than the initial wire diameter f of the metal wire; since the head of the metal wire is formed into a tapered structure by the rolling structure, and the minimum diameter of the tapered structure is the minimum diameter D2 of the tapered space, and the maximum diameter is the initial wire diameter f of the metal wire, and since the initial wire diameter f of the metal wire is greater than the diameter δ of the sizing zone of the wire drawing die, when D1>f>δ>D2 is satisfied, it is also necessary to ensure that the length of the tapered structure formed by the rolling structure of the head of the metal wire from the minimum diameter D2 to the diameter δ is greater than or equal to the sum of the length H of the sizing zone of the selected wire drawing die and the length ΔL of the head of the metal wire extending out of the wire drawing die. The length of the tapered structure formed by the rolling structure of the head of the metal wire from the minimum diameter D2 to the diameter δ is obtained by the taper angle of the tapered roller in the rolling structure, and the calculation formula is: Therefore, the present application selects the rolling tip structure with matching structural parameters through the following formula: D1>f>δ>D2,

[0067] In the present application, the initial wire diameter of the metal wire is 10mm≥f≥0.5mm. On the one hand, when the wire diameter of the metal wire is within this range, it can adapt to the application requirements of most fields in the market. On the other hand, if the wire diameter is too large, such as exceeding 10mm, the purchase cost of raw materials will increase, and more waste may be generated during the wire drawing process, because the deformation amount of each drawing is relatively limited, and the material utilization rate may not be high to meet most of the requirements; if the wire diameter is too small, such as less than 0.5mm, more precise and special molds and equipment are required to ensure the smooth progress of the drawing process, such as the accuracy of the mold aperture may need to be controlled at the micron level, and the parameters such as the tension control of the equipment also need to be more finely adjusted, which increases the cost.

[0068] It should be noted that, in the rolling point structure, the surface of the conical roller may be a hard material, a sprayed abrasive or a blade. When the surface of the conical roller is a hard material, the head wire diameter of the metal wire is extruded into a cone based on the rolling point structure; when the surface of the conical roller is a sprayed abrasive, the head wire diameter of the metal wire is ground into a cone based on the rolling point structure; when the surface of the conical roller is a blade, the head wire diameter of the metal wire is turned into a cone based on the rolling point structure.

[0069] In step S3, after selecting the appropriate wire drawing die and the sharpening structure, the head of the metal wire is inserted into the sharpening conical space fitted by the rotating conical roller in the sharpening structure for sharpening, and then the sharpened head of the metal wire is passed through the sizing area of ​​the wire drawing die for drawing and diameter reduction.

[0070] It can be seen that the metal wire drawing method provided in the present application utilizes the designed tipping structure to fit the tipping conical space through the rotation of the conical roller, so as to reduce the wire diameter of the head of the metal wire, thereby being able to select a tipping structure with matching structural parameters according to the initial wire diameter, target wire diameter and drawing die of the metal wire to be drawn, quickly complete the tipping, and then pass the wire through the drawing die to perform drawing and diameter reduction, thereby improving the metal wire drawing efficiency.

[0071] Based on the same inventive concept, a metal wire drawing device is also provided in the embodiment of the present application. Since the principle of solving the problem by the device in the embodiment of the present application is similar to the above-mentioned metal wire drawing method in the embodiment of the present application, the implementation of the device can refer to the implementation of the method, and the repeated parts will not be repeated.

[0072] As the instruction manual Fig.10As shown, a metal wire drawing device provided in an embodiment of the present application is applied to a rolling point structure of metal wire drawing, wherein the rolling point structure comprises a tapered roller rotating frame and a tapered roller assembly, wherein the tapered roller assembly comprises two tapered rollers symmetrically mounted on the tapered roller rotating frame; wherein, when the tapered roller rotating frame is driven to rotate with the tapered roller assembly, a rolling point tapered space is fitted between the two tapered rollers, which is used to reduce the wire diameter of the head of the metal wire passing through the rolling point tapered space; the device comprises:

[0073] The first selection module 1001 is used to select a metal wire to be drawn, and select a suitable drawing die according to a target wire diameter of the metal wire; wherein the diameter of the sizing zone of the selected drawing die is equal to the target wire diameter;

[0074] A second selection module 1002 is used to select a rolling point structure with matching structural parameters according to the initial wire diameter, the target wire diameter and the length of the sizing zone of the wire drawing die;

[0075] The drawing module 1003 is used to reduce the wire diameter of the head of the metal wire based on the point rolling structure, and then pass it through the sizing area of ​​the wire drawing die to perform drawing and diameter reduction.

[0076] In one embodiment, the second selection module 1002 selects the tipping structure of the adaptive structural parameters by the following formula:

[0077] D1>f>δ>D2

[0078]

[0079] Among them, f represents the initial wire diameter of the metal wire, δ represents the target wire diameter of the metal wire for drawing, D1 represents the maximum diameter of the tapered space of the rolling point fitted by the rolling point structure, D2 represents the minimum diameter of the tapered space of the rolling point fitted by the rolling point structure, a represents the taper angle of the tapered roller in the rolling point structure, H represents the length of the sizing zone of the drawing die, and ΔL represents the length of the metal wire extending out of the drawing die.

[0080] A metal wire drawing device provided in the present application is a rolling point structure applied to metal wire drawing. The rolling point structure can fit a rolling point conical space through the rotation of a conical roller, and then select an appropriate drawing die according to the target wire diameter of the metal wire drawing, as well as the initial wire diameter, target wire diameter and sizing zone length of the wire drawing die, and select an appropriate rolling point structure. After the head wire diameter of the metal wire is reduced based on the rolling point structure, it is passed through the sizing zone of the wire drawing die to be drawn and reduced in diameter, thereby improving the wire drawing efficiency.

[0081] Based on the same concept of the present invention, the specification is attached Fig.11As shown, the structure of an electronic device 1100 provided in an embodiment of the present application includes: at least one processor 1101, at least one network interface 1104 or other user interface 1103, a memory 1105, and at least one communication bus 1102. The communication bus 1102 is used to realize the connection and communication between these components. The electronic device 1100 optionally includes a user interface 1103, including a display (for example, a touch screen, LCD, CRT, holographic imaging (Holographic) or projection (Projector), etc.), a keyboard or a pointing device (for example, a mouse, a trackball (trackball), a touch pad or a touch screen, etc.).

[0082] The memory 1105 may include a read-only memory and a random access memory, and provides instructions and data to the processor 1101. A portion of the memory 1105 may also include a non-volatile random access memory (NVRAM).

[0083] In some embodiments, the memory 1105 stores the following elements, executable modules or data structures, or a subset thereof, or an extended set thereof:

[0084] Operating system 11051, including various system programs for implementing various basic services and processing hardware-based tasks;

[0085] The application module 11052 includes various application programs, such as a launcher, a media player, a browser, etc., which are used to implement various application services.

[0086] In an embodiment of the present application, by calling the program or instructions stored in the memory 1105, the processor 1101 is used to execute steps in a metal wire drawing method, and can use the designed tipping structure to quickly and stably process the head of the metal wire into a pointed tip, thereby drawing and reducing the diameter and improving the drawing efficiency.

[0087] The present application also provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, steps in a metal wire drawing method are executed.

[0088] Specifically, the storage medium can be a general storage medium, such as a mobile disk, a hard disk, etc. When the computer program on the storage medium is run, the above-mentioned metal wire drawing method can be executed.

[0089] In the embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. The device embodiments described above are merely schematic. For example, the division of units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some communication interfaces, and the indirect coupling or communication connection of devices or units can be electrical, mechanical or other forms.

[0090] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0091] In addition, each functional unit in the embodiments provided in the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0092] If the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art or the part of the technical solution, can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the various embodiments of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk, and other media that can store program codes.

[0093] Finally, it should be noted that the above embodiments are only specific implementation methods of the present application, which are used to illustrate the technical solutions of the present application, rather than to limit them. The protection scope of the present application is not limited thereto. Although the present application is described in detail with reference to the aforementioned embodiments, ordinary technicians in the field should understand that any technician familiar with the technical field can still modify the technical solutions recorded in the aforementioned embodiments within the technical scope disclosed in the present application, or can easily think of changes, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application. They should all be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A metal wire drawing method, characterized in that: A rolling point structure for metal wire drawing, the rolling point structure comprises a tapered roller rotating frame and a tapered roller assembly, the tapered roller assembly comprises two tapered rollers symmetrically mounted on the tapered roller rotating frame; wherein, when the tapered roller rotating frame is driven to rotate with the tapered roller assembly, the two tapered rollers rotate and fit into a rolling point tapered space, so as to reduce the head diameter of the metal wire passing through the rolling point tapered space; the method comprises the following steps: Selecting a metal wire to be drawn, and selecting an appropriate wire drawing die according to the target wire diameter of the metal wire; wherein the diameter of the sizing zone of the selected wire drawing die is equal to the target wire diameter; Selecting a rolling tip structure with matching structural parameters according to the initial wire diameter, the target wire diameter and the length of the sizing zone of the wire drawing die; After the wire diameter of the head of the metal wire is reduced based on the point rolling structure, the wire is passed through the sizing area of ​​the wire drawing die to be drawn and reduced in diameter.

2. The metal wire drawing method according to claim 1, characterized in that: The rolling tip structure with suitable structural parameters is selected by the following formula: D1>f>δ>D2 Among them, f represents the initial wire diameter of the metal wire, δ represents the target wire diameter of the metal wire for drawing, D1 represents the maximum diameter of the tapered space of the rolling point fitted by the rolling point structure, D2 represents the minimum diameter of the tapered space of the rolling point fitted by the rolling point structure, a represents the taper angle of the tapered roller in the rolling point structure, H represents the length of the sizing zone of the drawing die, and ΔL represents the length of the metal wire extending out of the drawing die.

3. The metal wire drawing method according to claim 2, characterized in that: The initial wire diameter of the metal wire is 10 mm ≥ f ≥ 0.5 mm.

4. The metal wire drawing method according to claim 1, characterized in that: The method of reducing the head diameter of the metal wire based on the pointed structure includes the following steps: When the surface of the tapered roller is made of a hard material, the head diameter of the metal wire is squeezed into a tapered shape based on the rolling point structure; or when the surface of the tapered roller is sprayed with abrasive, the head diameter of the metal wire is ground into a cone based on the rolling point structure; Alternatively, when the surface of the tapered roller is a blade, the head diameter of the metal wire is turned into a tapered shape based on the point rolling structure.

5. The metal wire drawing method according to claim 1, characterized in that: The rolling point structure also includes: An inner gear ring, wherein a passage for passing a metal wire is reserved in the middle of the inner gear ring; Conical roller gears, the small bottom end of each of the conical rollers is respectively meshed with the inner gear ring through the conical roller gears; A tapered roller bottom end bearing is arranged at one end of the tapered roller rotating frame, and the large bottom surface end of each tapered roller is connected to the tapered roller rotating frame through the tapered roller bottom end bearing; A motor, the other end of the tapered roller rotating frame is connected to the motor, when the motor drives the tapered roller rotating frame to rotate, the tapered roller revolves around the rotating axis of the tapered roller rotating frame and rotates at the same time, fitting a tapered space with a sharp rolling point; The conical roller rotating frame and the conical roller assembly are arranged in the casing, and the inner gear ring is installed on the casing.

6. The metal wire drawing method according to claim 5, characterized in that: In the rolling point structure, the tapered roller rotating frame includes a rotating shaft and a rotating disk fixed together, the rotating disk is symmetrically provided with two circular slots at a certain distance outside the rotating center of the tapered roller rotating frame, and a fixed shaft is provided at the large bottom surface end of the tapered roller, and the fixed shaft is installed in the slot through the tapered roller bottom end bearing; A bearing bracket is also arranged inside the casing, and the conical roller rotating frame is connected to the bearing bracket through a rotating frame bearing installed on the rotating shaft, and is meshed with a driving gear connected to the output end of the motor through a rotating frame gear installed on the rotating shaft; a supporting inner ring is installed at the metal wire entrance of the casing, and a conical roller top end bearing is installed on the fixed shaft at the small bottom end of the conical roller. When the conical roller revolves, the outer surface of the conical roller top end bearing is pressed on the supporting inner ring and rotates.

7. The metal wire drawing method according to claim 6, characterized in that: In the rolling point structure, the bearing support includes a first bearing support and a second bearing support arranged at intervals, and the tapered roller rotating frame is connected to the first bearing support and the second bearing support respectively through the first rotating frame bearing and the second rotating frame bearing; and the rotating frame gear is arranged between the first rotating frame bearing and the second rotating frame bearing.

8. A metal wire drawing device, characterized in that: A rolling point structure for metal wire drawing, the rolling point structure comprises a tapered roller rotating frame and a tapered roller assembly, the tapered roller assembly comprises two tapered rollers symmetrically mounted on the tapered roller rotating frame; wherein, when the tapered roller rotating frame is driven to rotate with the tapered roller assembly, a rolling point conical space is fitted between the two tapered rollers, which is used to reduce the head diameter of the metal wire passing through the rolling point conical space; the device comprises: A first selection module is used to select a metal wire to be drawn, and select an appropriate drawing die according to a target wire diameter of the metal wire; wherein the diameter of the sizing zone of the selected drawing die is equal to the target wire diameter; A second selection module is used to select a rolling point structure with matching structural parameters according to the initial wire diameter, the target wire diameter and the length of the sizing zone of the wire drawing die; The drawing module is used to reduce the wire diameter of the head of the metal wire based on the point rolling structure, and then pass it through the sizing area of ​​the wire drawing die to perform drawing and diameter reduction.

9. An electronic device, characterized in that: include: A processor, a memory and a bus, wherein the memory stores machine-readable instructions executable by the processor, and when the electronic device is running, the processor and the memory communicate via the bus, and when the machine-readable instructions are executed by the processor, the steps of the metal wire drawing method as described in any one of claims 1 to 7 are performed.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the metal wire drawing method according to any one of claims 1 to 7 are executed.

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