A method for manufacturing an alloy guide wheel and a die-casting mold thereof

Abstract

The present invention discloses a method for manufacturing an alloy guide wheel and a die-casting mold thereof, and relates to the field of die-casting technology, which includes combining a front mold core, a rear mold core and two core pulls in a die-casting mold; pressurizing and injecting a molten alloy material into a mold cavity of the die-casting mold; after the alloy material is cooled, opening the front mold core, the rear mold core and two core pulls in the die-casting mold, demolding to obtain an alloy guide wheel embryo; processing the alloy guide wheel embryo to obtain a finished alloy guide wheel. The present invention mainly solves the problems of long production cycle, low production efficiency and high production cost of alloy guide wheels; the present invention uses a die-casting process to form an alloy guide wheel in one step, thereby simplifying the production process of the alloy guide wheel, avoiding the problems of material waste and low processing efficiency generated in turning, and can effectively improve the economy, processing efficiency and yield rate of the alloy guide wheel production process.

Description

Technical Field

[0001] The invention relates to the technical field of die-casting, and in particular to a method for manufacturing an alloy guide wheel and a die-casting mold thereof. Background Art

[0002] At present, alloy guide wheels are widely used in the manufacturing industry. Because of their light weight, good structural strength and easy processing, alloy guide wheels are becoming more and more popular in the manufacturing industry.

[0003] However, there are two main production processes for alloy guide wheels. The first is to directly cut the alloy bar and then use CNC lathe to turn and mill it directly. The second is to use a simple mold and adopt the traditional casting and sand casting process (low-pressure casting) to first make a simple product model and then use turning and milling to finish it.

[0004] Among them, the first method requires a large amount of alloy materials, which not only increases the cost of purchasing raw materials for the product, but also has too large a processing allowance, a long processing time, low efficiency, and high labor costs, which directly increases the cost of CNC lathes. It has defects such as long production cycle, low production efficiency, and high production costs, which is not conducive to enterprise development; the second method adopts the traditional casting and sand casting process (low-pressure casting), which results in the alloy guide wheel product having a loose structure, large pores and other defects, poor structural strength, and the appearance of the alloy guide wheel product is rough and unsightly. Summary of the invention

[0005] One of the purposes of the present invention is to provide a method for manufacturing an alloy guide wheel, which uses a die-casting mold and completes the manufacture of the alloy guide wheel through a die-casting process to avoid material waste.

[0006] Another object of the present invention is to provide a die-casting mold, which can complete the manufacture of the alloy guide wheel through the die-casting process and also avoid material waste.

[0007] To achieve the above object, the present invention provides the following technical solution: a method for manufacturing an alloy guide wheel, comprising the following steps:

[0008] S1, combining the front mold core, the rear mold core and two core pulling pieces in the die casting mold;

[0009] The mold cavity of the front mold core is provided with a first central cylinder for forming the mounting hole, a first die-casting annular surface for forming the wheel body, and a first functional cavity for forming the functional part in sequence from the inside to the outside;

[0010] The cavity of the rear mold core is provided with a second central cylinder for forming the mounting hole, a second die-casting annular surface for forming the wheel body, and a second functional cavity for forming the functional part in sequence from the inside to the outside;

[0011] A die-casting half ring is provided on the inner side of each core puller, and two core pullers are opposite to each other and can be inserted into the mold cavity from between the front mold core and the rear mold core;

[0012] After the front mold core, the rear mold core and the core pulling are combined, the first central cylinder and the second central cylinder are coaxial, and there is no gap between the first central cylinder and the second central cylinder, the first die-casting ring surface and the second die-casting ring surface are coaxial, and there is a gap between the first die-casting ring surface and the second die-casting ring surface and they are parallel to each other, the first functional cavity and the second functional cavity are opposite to each other, and the two die-casting half rings on the core pulling are combined with each other to form a die-casting ring, and the die-casting ring is located between the first functional cavity and the second functional cavity;

[0013] S2, pressurizing the molten alloy material and injecting it into the cavity of the die-casting mold;

[0014] S3, after the alloy material is cooled, the front mold core, the rear mold core and the two core pulling pieces in the die-casting mold are opened, and the alloy guide wheel embryo body is obtained by demolding;

[0015] S4, processing the alloy guide wheel blank to obtain a finished alloy guide wheel.

[0016] In the above technical solution, step S4 specifically includes:

[0017] S4.1, Rough machining: remove the die-casting nozzle, runner and excess scraps connected to the alloy guide wheel blank;

[0018] S4.2, finishing: clamping the alloy guide wheel blank on a CNC lathe to finish the surface of the alloy guide wheel blank;

[0019] S4.3. Surface treatment: The surface of the alloy guide wheel blank is treated to obtain a finished alloy guide wheel.

[0020] In the above technical solution, the first functional cavity is a first annular slope inclined toward the solid side of the front mold core, and the second functional cavity is a second annular slope inclined toward the solid side of the rear mold core and an annular groove surrounding the second annular slope.

[0021] In the above technical solution, the first functional cavity is a first annular cavity, and the second functional cavity is a second annular cavity; there are more than two die-cast half rings on each core pulling block, and there is a gap between every two die-cast half rings.

[0022] In the above technical solution, the front mold core and the rear mold core are provided with at least two cavities; the first functional cavity is a first annular inclined surface inclined toward the solid side of the front mold core, and the second functional cavity is a second annular inclined surface inclined toward the solid side of the rear mold core; the inner side of each core pulling block is provided with die-cast half rings corresponding to the number of the cavities.

[0023] A die-casting mold using the above alloy guide wheel manufacturing method, characterized in that it includes a front mold core, a rear mold core and two core pulls;

[0024] The cavity of the front mold core is provided with the following from inside to outside:

[0025] a first central cylinder for forming a mounting hole;

[0026] A first die-cast annular surface for forming a wheel body;

[0027] A first functional cavity, used for forming a functional part;

[0028] The cavity of the rear mold core is provided with the following from inside to outside:

[0029] a second central cylinder for forming a mounting hole;

[0030] A second die-cast annular surface for forming the wheel body;

[0031] The second functional cavity is used for forming the functional part;

[0032] A die-casting half ring is provided on the inner side of each core puller, and two core pullers are opposite to each other and can be inserted into the mold cavity from between the front mold core and the rear mold core;

[0033] After the front mold core, the rear mold core and the core pulling are combined, the first central cylinder and the second central cylinder are coaxial, and there is no gap between the first central cylinder and the second central cylinder, the first die-casting ring surface and the second die-casting ring surface are coaxial, and there is a gap between the first die-casting ring surface and the second die-casting ring surface and they are parallel to each other, the first functional cavity and the second functional cavity are opposite to each other, the two die-casting half rings on the core pulling are combined with each other to form a die-casting ring, and the die-casting ring is located between the first functional cavity and the second functional cavity.

[0034] In the above technical solution, the first functional cavity is a first annular slope inclined toward the solid side of the front mold core, and the second functional cavity is a second annular slope inclined toward the solid side of the rear mold core and an annular groove surrounding the second annular slope.

[0035] In the above technical solution, the first functional cavity is a first annular cavity, and the second functional cavity is a second annular cavity; there are more than two die-cast half rings on each core pulling block, and there is a gap between every two die-cast half rings.

[0036] In the above technical solution, the front mold core and the rear mold core are provided with at least two cavities; the first functional cavity is a first annular inclined surface inclined toward the solid side of the front mold core, and the second functional cavity is a second annular inclined surface inclined toward the solid side of the rear mold core; the inner side of each core pulling block is provided with die-cast half rings corresponding to the number of the cavities.

[0037] In the above technical solution, the front mold core is on the first die-casting ring surface, with the first central cylinder as the center of symmetry, and is provided with a plurality of first material-reducing cylinders for forming weight-reducing holes; the rear mold core is on the second die-casting ring surface, with the second central cylinder as the center of symmetry, and is provided with a plurality of second material-reducing cylinders for forming weight-reducing holes; after the front mold core, the rear mold core and the core pulling are combined, the first material-reducing cylinder and the second material-reducing cylinder are coaxial, and there is no gap between the first material-reducing cylinder and the second material-reducing cylinder.

[0038] Compared with the prior art, the invention has the following beneficial effects: 1. The alloy guide wheel manufacturing method uses a die-casting mold, and can form the alloy guide wheel in one step through the die-casting process, thereby simplifying the production process of the alloy guide wheel, avoiding the problems of material waste and low processing efficiency generated in turning, and effectively improving the economy, processing efficiency and yield rate of the alloy guide wheel production process;

[0039] 2. This die-casting mold can form the alloy guide wheel in one step through the die-casting process, which simplifies the production process of the alloy guide wheel, avoids the problems of material waste and low processing efficiency caused by turning, and can effectively improve the economy, processing efficiency and yield rate of the alloy guide wheel production process;

[0040] 3. Compared with the alloy guide wheel processed by turning, the alloy guide wheel manufactured by the alloy guide wheel manufacturing method and the die-casting mold thereof can save alloy materials, thereby saving production costs, and the product structure is compact, free of pores, and the wear resistance and strength are enhanced. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 The present invention is a flow chart of the alloy guide wheel manufacturing method.

[0042] Figure 2 This is a flow chart of step S4 in the alloy guide wheel manufacturing method of the present invention.

[0043] Figure 3 A three-dimensional view of the storage wheel.

[0044] Figure 4 Another stereoscopic view of the storage wheel.

[0045] Figure 5 This is an axial cross-sectional view of the storage wheel.

[0046] Figure 6 It is an axial cross-sectional view of three stacked wire storage wheels.

[0047] Figure 7 This is a three-dimensional view of the die-casting mold in the first embodiment of the present invention.

[0048] Figure 8 This is an exploded view of the die-casting mold in Example 1 of the present invention.

[0049] Fig. 9 Another exploded view of the die-casting mold in the first embodiment of the present invention.

[0050] Fig.10 It is a cross-sectional view of the die-casting mold in the first embodiment of the present invention.

[0051] Fig.11 for Fig.10 A is a partial enlarged view of the figure.

[0052] Fig.12 This is a three-dimensional view of the traction wheel.

[0053] Fig.13 This is an axial cross-sectional view of the guide wheel.

[0054] Fig.14 It is a three-dimensional view of the die-casting mold in the second embodiment of the present invention.

[0055] Fig.15 This is an exploded view of the die-casting mold in the second embodiment of the present invention.

[0056] Fig.16 It is a three-dimensional view of the rear mold core in the second embodiment of the present invention.

[0057] Fig.17 It is a cross-sectional view of the die-casting mold in the second embodiment of the present invention.

[0058] Fig.18 This is a three-dimensional view of the guide wheel.

[0059] Fig.19 This is an axial cross-sectional view of the guide wheel.

[0060] Fig. 20 This is a three-dimensional view of the die-casting mold in the third embodiment of the present invention.

[0061] Fig.21 This is an exploded view of the die-casting mold in Example 3 of the present invention.

[0062] Fig. 22 This is a three-dimensional view of the rear mold core in the third embodiment of the present invention.

[0063] Fig.23This is a cross-sectional view of the die-casting mold in the third embodiment of the present invention.

[0064] Fig.24 for Fig.23 A partial enlarged view of B.

[0065] The accompanying drawings are marked as follows: 1, front mold core; 11, first central cylinder; 12, first die-casting annular surface; 13, first annular inclined surface; 14, first groove; 15, first annular cavity; 16, first subtractive cylinder; 17, runner; 18, pouring gate; 2, rear mold core; 21, second central cylinder; 22, second die-casting annular surface; 23, second annular inclined surface; 24, first groove; 25, second annular cavity; 26, second subtractive cylinder; 27, annular groove; 28, square groove; 3, core pulling; 31, Die-cast half ring; 32, gap; 4, wire storage wheel; 41, wheel body; 42, mounting hole; 43, wire storage part; 431, retaining wall; 432, clamping part; 433, assembly edge; 44, weight-reducing hole; 45, mounting ring; 5, drawing wheel; 51, wheel body; 52, mounting hole; 53, drawing part; 531, retaining wall; 532, wire groove; 54, weight-reducing hole; 55, mounting ring; 6, guide wheel; 61, wheel body; 62, mounting hole; 63, wire conductor part; 631, retaining wall; 64, mounting ring. DETAILED DESCRIPTION

[0066] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0067] A die-casting mold for die-casting an alloy guide wheel, comprising a front mold core 1, a rear mold core 2 and two core pullers 3; the materials of the front mold core 1, the rear mold core 2 and the core pullers 3 are all hot working die steel, such as steel type H13; cavities are formed in the front mold core 1 and the rear mold core 2 by turning or laser processing.

[0068] The cavity of the front mold core 1 is provided with the following from the inside to the outside:

[0069] A first central cylinder 11, used for forming a mounting hole;

[0070] The first die-casting ring surface 12 is used for forming the wheel body;

[0071] A first functional cavity, used for forming a functional part;

[0072] The cavity of the rear mold core 2 is provided with the following from the inside to the outside:

[0073] A second central cylinder 21, used for forming a mounting hole;

[0074] The second die-casting annular surface 22 is used for forming the wheel body;

[0075] The second functional cavity is used for molding the functional part.

[0076] The first die-casting annular surface 12 is a flat horizontal surface on the front mold core 1, and the second die-casting annular surface 22 is a flat horizontal surface on the rear mold core 2. The front mold core 1 is also provided with a pouring gate 18 and a runner 17. The pouring gate 18 is opened on the side of the front mold core 1, and the two ends of the runner 17 are connected to the pouring gate 18 and the first functional cavity. In addition, square grooves 28 are respectively opened on both sides of the rear mold core 2, and the square grooves 28 are connected to the mold cavity for the two core pullers 3 to be inserted.

[0077] A die-cast half ring 31 is provided on the inner side of each core pulling 3, and the die-cast half ring 31 is formed by turning or laser processing. The two core pulling 3 are opposite to each other and can be inserted into the cavity from between the front core 1 and the rear core 2; that is, the two core pulling 3 are respectively inserted into the square grooves 28 on both sides of the rear core 2 until the two core pulling 3 are against each other, at which time the die-cast half ring 31 reaches the periphery of the cavity.

[0078] After the front mold core 1, the rear mold core 2 and the core pulling 3 are combined, the first central cylinder 11 and the second central cylinder 21 are coaxial, and there is no gap between the first central cylinder 11 and the second central cylinder 21, the first die-casting ring surface 12 and the second die-casting ring surface 22 are coaxial, and there is a gap between the first die-casting ring surface 12 and the second die-casting ring surface 22 and they are parallel to each other, the first functional cavity and the second functional cavity are opposite to each other, and the die-casting half rings 31 on the two core pulling 3 are combined with each other to form a die-casting ring, and the die-casting ring is located between the first functional cavity and the second functional cavity.

[0079] See also Figure 1 and Figure 2 A method for manufacturing an alloy guide wheel, using the above-mentioned die-casting mold, comprises the following steps:

[0080] S1, combining the front mold core 1, the rear mold core 2 and two core pullers 3 in the die-casting mold;

[0081] In this step, the front mold core 1, the rear mold core 2 and the two core pullers 3 are respectively installed on the corresponding mold frames, and then the mold frame is installed on the die-casting machine. During die-casting, the die-casting machine combines the front mold core 1, the rear mold core 2 and the two core pullers 3, so that the cavities of the front mold core 1 and the rear mold core 2 are combined, and the two core pullers 3 are respectively inserted from both sides until the die-casting half ring 31 reaches the cavity and is combined into a die-casting ring.

[0082] S2. Pressurize the molten alloy material and inject it into the cavity of the die-casting mold.

[0083] Among them, the alloy material can be one of aluminum alloy, steel or cast iron. The alloy material is first heated to a molten state and then passed into a die-casting machine. The molten alloy material is pressurized by the die-casting machine and then injected into the die-casting mold from the pouring port 18 of the front mold core 1 until the alloy material reaches the mold cavity.

[0084] The alloy material cannot enter the first central cylinder 11 and the second central cylinder 21 so as to form a mounting hole that passes through the wheel body of the alloy guide wheel; the alloy material enters the cavity between the first die-cast ring surface 12 and the second die-cast ring surface 22 so as to form a flat wheel body of the alloy guide wheel and make both surfaces of the wheel body flat; the alloy material enters the first functional cavity and the second functional cavity and cooperates with the die-cast ring to form the functional part of the alloy guide wheel.

[0085] S3. After the alloy material is cooled, the front mold core 1, the rear mold core 2 and the two core pullers 3 in the die-casting mold are opened, and the mold is demolded to obtain the alloy guide wheel blank.

[0086] In this step, in some possible embodiments, the die-casting machine separates the front mold core 1 and the rear mold core 2, and simultaneously uses the inclined guide pillars to separate the two core pullers 3 to open the mold cavity, and uses the ejector pin to eject the alloy guide wheel blank, so that the alloy guide wheel blank can be demolded; in other possible embodiments, the die-casting machine first separates the front mold core 1 and the rear mold core 2, and then uses the hydraulic cylinder to pull the two core pullers 3 apart to open the mold cavity, and uses the ejector pin to eject the alloy guide wheel blank, so that the alloy guide wheel blank can be demolded.

[0087] S4. Process the alloy guide wheel blank to obtain a finished alloy guide wheel.

[0088] Specifically, step S4 includes:

[0089] S4.1. Rough processing: The alloy guide wheel blank can be punched to remove the die-casting nozzles, runners and excess scraps connected to the alloy guide wheel blank. Of course, manual shearing can also be used to remove the die-casting nozzles, runners and excess scraps connected to the alloy guide wheel blank.

[0090] S4.2, finishing: clamping the alloy guide wheel blank on a CNC lathe to finish the surface of the alloy guide wheel blank;

[0091] S4.3, surface treatment: the surface of the alloy guide wheel embryo is treated to obtain a finished alloy guide wheel. Specifically, the surface of the alloy guide wheel embryo can be subjected to black anodizing, aluminum anodizing, sandblasting oxidation, baking varnish and other surface treatment processes to meet different usage requirements. For example, the surface of the alloy guide wheel embryo is subjected to aluminum anodizing, and the alloy guide wheel embryo is placed in a corresponding electrolyte (such as sulfuric acid, chromic acid, oxalic acid, etc.) as an anode, and electrolysis is performed under specific conditions and an applied current. The alloy guide wheel embryo at the anode is oxidized to form a thin aluminum oxide layer with a thickness of 5 to 20 microns on its surface, and the surface hardness can reach HV300 to HV500.

[0092] Hereinafter, three embodiments are provided to further illustrate the technical solutions of the present invention. The technical solutions in the three embodiments are all optimizations or specific descriptions based on the above technical solutions.

[0093] Embodiment 1:

[0094] The present embodiment provides a die-casting mold for die-casting a wire storage wheel 4. The wire storage wheel 4 is a type of alloy guide wheel used for storing continuous wire.

[0095] See also Figure 3-Figure 6 The wire storage wheel 4 includes a wheel body 41, and a mounting hole 42 for mounting a rotating shaft or a bearing is opened in the middle of the wheel body 41; mounting rings 45 are extended from the outer edges of both ends of the mounting hole 42 along the axial direction of the wheel body 41 to adapt to more bearings; a plurality of weight-reducing holes 44 are opened on the wheel body 41 with the mounting hole 42 as the symmetric center to save metal materials; the outer peripheral surface of the wheel body 41 is a wire storage part 43, and both sides of the wire storage part 43 are retaining walls 431, wherein the top of the retaining wall 431 on one side is a clamping part 432, and the top of the retaining wall 431 on the other side is axially folded to form an assembly edge 433; when the wheel bodies 41 need to be stacked for use, the clamping part 432 of the previous wire storage wheel 4 can be clamped into the assembly edge 433 of the next wire storage wheel 4, and the wire storage part 43 is the functional part of the wire storage wheel 4.

[0096] See also Figure 7-Figure 11 In this embodiment, the first functional cavity is a first annular slope 13 inclined toward the solid side of the front mold core 1, and the first annular slope 13 is a flat slope, which is used to form the wire storage portion 43 and the clamping portion 432; the second functional cavity is a second annular slope 23 inclined toward the solid side of the rear mold core 2 and an annular groove 27 surrounding the second annular slope 23, and the second annular slope 23 is a flat slope, which is used to form the wire storage portion 43, and the position of the annular groove 27 is lower than the bottom of the second annular slope 23, and is used to form the assembly edge 433; after the front mold core 1, the rear mold core 2 and the core pulling 3 are combined, the first annular slope 13 and the second annular slope 23 are symmetrical with the joint surface of the front mold core 1 and the rear mold core 2 as the center.

[0097] Furthermore, the front mold core 1 is provided with a plurality of first material-reducing cylinders 16 for forming weight-reducing holes 44 on the first die-casting annular surface 12, with the first central cylinder 11 as the center of symmetry; the rear mold core 2 is provided with a plurality of second material-reducing cylinders 26 for forming weight-reducing holes 44 on the second die-casting annular surface 22, with the second central cylinder 21 as the center of symmetry; after the front mold core 1, the rear mold core 2 and the core pulling 3 are combined, the first material-reducing cylinder 16 and the second material-reducing cylinder 26 are coaxial, and there is no gap between the first material-reducing cylinder 16 and the second material-reducing cylinder 26.

[0098] Furthermore, the outer ring of the first central cylinder 11 is provided with a first groove 14, and the outer ring of the second central cylinder 21 is provided with a second groove 24, wherein the first groove 14 and the second groove 24 are both annular grooves; after the front mold core 1, the rear mold core 2 and the core pulling 3 are combined, the first groove 14 and the second groove 24 are coaxial.

[0099] This embodiment also provides a method for manufacturing an alloy guide wheel, using the above-mentioned die-casting mold, which includes the following steps:

[0100] S1, combining the front mold core 1, the rear mold core 2 and two core pullers 3 in the die-casting mold;

[0101] In this step, the front mold core 1, the rear mold core 2 and the two core pullers 3 are respectively installed on the corresponding mold frames, and then the mold frames are installed on the die-casting machine. During die-casting, the die-casting machine combines the front mold core 1, the rear mold core 2 and the two core pullers 3, combines the cavities of the front mold core 1 and the rear mold core 2, and inserts the two core pullers 3 from both sides until the die-casting half ring 31 reaches the cavity.

[0102] S2. Pressurize the molten alloy material and inject it into the cavity of the die-casting mold.

[0103] Among them, the alloy material can be one of aluminum alloy, steel or cast iron. The alloy material is first heated to a molten state and then passed into a die-casting machine. The molten alloy material is pressurized by the die-casting machine and then injected into the die-casting mold from the pouring port 18 of the front mold core 1 until the alloy material reaches the mold cavity.

[0104] The alloy material cannot enter the first central cylinder 11 and the second central cylinder 21 so as to form the mounting hole 42 that passes through the wheel body 41 of the wire storage wheel 4; the alloy material enters the cavity between the first die-casting annular surface 12 and the second die-casting annular surface 22 so as to form the flat wheel body 41 of the wire storage wheel 4 and make the two surfaces of the wheel body 41 flat; the alloy material enters the cavity between the first annular bevel 13, the second annular bevel 23 and the die-casting ring so as to form the wire storage part 43 and the clamping part 432 of the wire storage wheel 4; the alloy material also enters the annular groove 27 of the rear mold core 2 so as to form the assembly edge 433 of the wire storage wheel 4; the alloy material enters the cavity of the first groove 14 and the second groove 24 so as to form the mounting ring 45 of the wire storage wheel 4; the alloy material cannot enter the first material-reducing cylinder 16 and the second material-reducing cylinder 26 so as to form the weight-reducing hole 44 that passes through the wheel body 41 of the wire storage wheel.

[0105] S3, after the alloy material is cooled, the front mold core 1, the rear mold core 2 and the two core pullers 3 in the die-casting mold are opened, and the mold is demolded to obtain the wire storage wheel embryo.

[0106] In this step, the die-casting machine separates the front mold core 1 and the rear mold core 2, and at the same time uses the inclined guide pillar to separate the two core pullers 3 to open the cavity, and uses the ejector pin to eject the wire storage wheel embryo, so that the wire storage wheel embryo can be demolded.

[0107] S4, processing the wire storage wheel embryo to obtain a finished wire storage wheel 4.

[0108] Specifically, step S4 includes:

[0109] S4.1. Rough machining: Punch the wire storage wheel blank to remove the die-casting nozzle, runner and excess scraps connected to the wire storage wheel blank.

[0110] S4.2, finishing: clamping the wire storage wheel embryo body on a CNC lathe to finish the surface of the wire storage wheel embryo body;

[0111] S4.3, surface treatment: the surface of the wire storage wheel embryo is subjected to black anodizing treatment to obtain a finished wire storage wheel 4.

[0112] Embodiment 2:

[0113] This embodiment provides a die-casting mold for die-casting a take-up wheel 5. The take-up wheel 5 is a type of alloy guide wheel used to guide the direction of the continuous wire.

[0114] See also Fig.12 and Fig.13The drawing wheel 5 includes a wheel body 51, and a mounting hole 52 for mounting a rotating shaft or a bearing is provided in the middle of the wheel body 51; mounting rings 55 are extended from the outer edges of both ends of the mounting hole 52 along the axial direction of the wheel body 51 to accommodate more bearings; a plurality of weight-reducing holes 54 are provided on the wheel body 51 with the mounting hole 52 as the symmetric center to save metal materials; both sides of the outer peripheral edge of the wheel body 51 extend axially outward symmetrically to form a drawing portion 53, and a plurality of retaining walls 531 are arranged side by side on the drawing portion 53, and a wire groove 532 is provided between every two retaining walls 531, and the drawing portion 53 is the functional part of the drawing wheel 5.

[0115] See also Figure 14-17 In this embodiment, the first functional cavity is the first annular cavity 15, which is a circular cavity surrounding the first die-casting ring surface 12, and its bottom position is deeper into the front mold core 1 than the first die-casting ring surface 12; the second functional cavity is the second annular cavity 25, which is a circular cavity surrounding the second die-casting ring surface 22, and its bottom position is deeper into the rear mold core 2 than the second die-casting ring surface 22.

[0116] There are more than two die-casting half rings 31 on each core puller 3 , and there is a gap 32 between every two die-casting half rings 31 . Moreover, the gap 32 between each die-casting half ring 31 of the core puller 3 is uniform.

[0117] Furthermore, the front mold core 1 is provided with a plurality of first material-reducing cylinders 16 for forming weight-reducing holes 54 on the first die-casting ring surface 12, with the first central cylinder 11 as the center of symmetry; the rear mold core 2 is provided with a plurality of second material-reducing cylinders 26 for forming weight-reducing holes 54 on the second die-casting ring surface 22, with the second central cylinder 21 as the center of symmetry; after the front mold core 1, the rear mold core 2 and the core pulling 3 are combined, the first material-reducing cylinder 16 and the second material-reducing cylinder 26 are coaxial, and there is no gap between the first material-reducing cylinder 16 and the second material-reducing cylinder 26.

[0118] Furthermore, the outer ring of the first central cylinder 11 is provided with a first groove 14, and the outer ring of the second central cylinder 21 is provided with a second groove 24, wherein the first groove 14 and the second groove 24 are both annular grooves; after the front mold core 1, the rear mold core 2 and the core pulling 3 are combined, the first groove 14 and the second groove 24 are coaxial.

[0119] This embodiment also provides a method for manufacturing an alloy guide wheel, using the above-mentioned die-casting mold, which includes the following steps:

[0120] S1, combining the front mold core 1, the rear mold core 2 and two core pullers 3 in the die-casting mold;

[0121] In this step, the front mold core 1, the rear mold core 2 and the two core pullers 3 are respectively installed on the corresponding mold frames, and then the mold frames are installed on the die-casting machine. During die-casting, the die-casting machine combines the front mold core 1, the rear mold core 2 and the two core pullers 3, combines the cavities of the front mold core 1 and the rear mold core 2, and inserts the two core pullers 3 from both sides until the die-casting half ring 31 reaches the cavity.

[0122] S2. Pressurize the molten alloy material and inject it into the cavity of the die-casting mold.

[0123] Among them, the alloy material can be one of aluminum alloy, steel or cast iron. The alloy material is first heated to a molten state and then passed into a die-casting machine. The molten alloy material is pressurized by the die-casting machine and then injected into the die-casting mold from the pouring port 18 of the front mold core 1 until the alloy material reaches the mold cavity.

[0124] The alloy material cannot enter the first central cylinder 11 and the second central cylinder 21 so as to form the mounting hole 52 that passes through the wheel body 51 of the taking wheel 5; the alloy material enters the cavity between the first die-cast annular surface 12 and the second die-cast annular surface 22 so as to form the flat wheel body 51 of the taking wheel 5 and make the two surfaces of the wheel body 51 flat; the alloy material enters the cavity of the first annular cavity 15 and the second annular cavity 25 so as to form the taking part 53 extending axially from the outer periphery of the wheel body 51 of the taking wheel 5, and the alloy material also enters the gap 32 between every two die-cast half rings 31 so as to form a plurality of retaining walls 531 on the taking part 53; the alloy material enters the cavity of the first groove 14 and the second groove 24 so as to form the mounting ring 55 of the taking wheel 5; the alloy material cannot enter the first reduction cylinder 16 and the second reduction cylinder 26 so as to form the weight-reducing hole 54 that passes through the wheel body 51 of the taking wheel.

[0125] S3, after the alloy material is cooled, the front mold core 1, the rear mold core 2 and the two core pullers 3 in the die-casting mold are opened, and the mold is demolded to obtain the wheel blank.

[0126] In this step, the die-casting machine first separates the front mold core 1 and the rear mold core 2, and then uses a hydraulic cylinder to pull the two core pullers 3 apart to open the cavity, and uses an ejector pin to eject the wheel embryo body, so that the wheel embryo body can be demolded.

[0127] S4, processing the take-up wheel embryo to obtain a finished take-up wheel 5.

[0128] Specifically, step S4 includes:

[0129] S4.1, rough machining: punching the wheel blank to remove the die-casting nozzle, flow channel 17 and excess scraps connected to the wheel blank.

[0130] S4.2, finishing: clamping the wheel blank body on a CNC lathe to finish the surface of the wheel blank body;

[0131] S4.3, surface treatment: the surface of the take-up wheel embryo body is subjected to aluminum anodizing treatment to obtain a finished take-up wheel 5.

[0132] Embodiment three:

[0133] The present embodiment provides a die-casting mold for die-casting a guide wheel 6 made of an alloy. The guide wheel 6 is used to guide the direction of a continuous wire. The die-casting mold of the present embodiment can form a plurality of guide wheels 6 at one time.

[0134] See also Fig.18 and Fig.19 The guide wheel 6 includes a wheel body 61, a mounting hole 62 for mounting a rotating shaft or a bearing is opened in the middle of the wheel body 61, and mounting rings 64 are extended from the outer edges of both ends of the mounting hole 62 along the axial direction of the wheel body 61 to adapt to more bearings. The outer peripheral surface of the wheel body 61 is a wire portion 63, and both sides of the wire portion 63 are retaining walls 631. The wire portion 63 is the functional part of the guide wheel 6.

[0135] See also Figure 20-24 In this embodiment, the front mold core 1 and the rear mold core 2 are provided with at least two mold cavities; the first functional cavity is a first annular slope 13 inclined toward the solid side of the front mold core 1, and the first annular slope 13 is a flat slope, which is used to form the retaining wall 631; the second functional cavity is a second annular slope 23 inclined toward the solid side of the rear mold core 2, and the second annular slope 23 is a flat slope, which is used to form the retaining wall 631; the inner side of each core pull 3 is provided with a trapezoidal semi-ring corresponding to the number of mold cavities. In this embodiment, the front mold core 1 and the rear mold core 2 are provided with two mold cavities, and accordingly, in each core pull 3, two die-casting semi-rings 31 are provided; the flow channel 17 is sequentially connected to the first annular slope 13 in the two mold cavities. In other embodiments, the mold cavities can be set to three or four, and accordingly, in each core pull 3, three or four die-casting semi-rings 31 are provided; the flow channel 17 is sequentially connected to the first annular slope 13 in each mold cavity.

[0136] Furthermore, the outer ring of the first central cylinder 11 is provided with a first groove 14, and the outer ring of the second central cylinder 21 is provided with a second groove 24, wherein the first groove 14 and the second groove 24 are both annular grooves; after the front mold core 1, the rear mold core 2 and the core pulling 3 are combined, the first groove 14 and the second groove 24 are coaxial.

[0137] This embodiment also provides a method for manufacturing an alloy guide wheel, using the above-mentioned die-casting mold, which includes the following steps:

[0138] S1, combining the front mold core 1, the rear mold core 2 and two core pullers 3 in the die-casting mold;

[0139] In this step, the front mold core 1, the rear mold core 2 and the two core pullers 3 are respectively installed on the corresponding mold frames, and then the mold frames are installed on the die-casting machine. During die-casting, the die-casting machine combines the front mold core 1, the rear mold core 2 and the two core pullers 3, combines the cavities of the front mold core 1 and the rear mold core 2, and inserts the two core pullers 3 from both sides until the die-casting half ring 31 reaches the cavity.

[0140] S2. Pressurize and inject the molten alloy material into each cavity of the die-casting mold.

[0141] Among them, the alloy material can be one of aluminum alloy, steel or cast iron. The alloy material is first heated to a molten state and then passed into a die-casting machine. The molten alloy material is pressurized by the die-casting machine and then injected into the die-casting mold from the pouring port 18 of the front mold core 1 until the alloy material enters each cavity through the runner 17.

[0142] The alloy material cannot enter the first central cylinder 11 and the second central cylinder 21 so as to form the mounting hole 62 that passes through the wheel body 61 of the guide wheel 6; the alloy material enters the cavity between the first die-cast annular surface 12 and the second die-cast annular surface 22 so as to form the flat wheel body 61 of the guide wheel 6 and make the two surfaces of the wheel body 61 flat; the alloy material enters the cavity between the first groove 14 and the second groove 24 so as to form the mounting ring 64 of the guide wheel 6; the alloy material enters the cavity between the first annular bevel 13, the second annular bevel 23 and the die-cast ring so as to form the wire portion 43 of the guide wheel 4.

[0143] S3. After the alloy material is cooled, the front mold core 1, the rear mold core 2 and the two core pullers 3 in the die-casting mold are opened, and multiple guide wheel blanks are obtained by demolding.

[0144] In this step, the die-casting machine separates the front mold core 1 and the rear mold core 2, and simultaneously uses the inclined guide pins to separate the two core pullers 3 to open the mold cavity, and uses the ejector pins to eject the multiple guide wheel blanks so that the guide wheel blanks can be demolded.

[0145] S4, processing each guide wheel embryo separately to obtain a finished guide wheel 6.

[0146] Specifically, step S4 includes:

[0147] S4.1. Rough machining: Punching the guide wheel blank to remove the die-casting nozzle, flow channel 17 and excess scraps connected to the guide wheel blank.

[0148] S4.2, finishing: clamping the guide wheel blank on a CNC lathe to finish the surface of the guide wheel blank;

[0149] S4.3, surface treatment: the surface of the guide wheel blank is subjected to sandblasting and oxidation treatment to obtain a finished guide wheel 6.

[0150] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A method for manufacturing an alloy guide wheel, characterized in that: It includes the following steps: S1, combining the front mold core, the rear mold core and two core pulling pieces in the die casting mold; The mold cavity of the front mold core is provided with a first central cylinder for forming the mounting hole, a first die-casting annular surface for forming the wheel body, and a first functional cavity for forming the functional part in sequence from the inside to the outside; The cavity of the rear mold core is provided with a second central cylinder for forming the mounting hole, a second die-casting annular surface for forming the wheel body, and a second functional cavity for forming the functional part in sequence from the inside to the outside; A die-casting half ring is provided on the inner side of each core puller, and two core pullers are opposite to each other and can be inserted into the mold cavity from between the front mold core and the rear mold core; After the front mold core, the rear mold core and the core pulling are combined, the first central cylinder and the second central cylinder are coaxial, and there is no gap between the first central cylinder and the second central cylinder, the first die-casting ring surface and the second die-casting ring surface are coaxial, and there is a gap between the first die-casting ring surface and the second die-casting ring surface and they are parallel to each other, the first functional cavity and the second functional cavity are opposite to each other, and the two die-casting half rings on the core pulling are combined with each other to form a die-casting ring, and the die-casting ring is located between the first functional cavity and the second functional cavity; S2, pressurizing the molten alloy material and injecting it into the cavity of the die-casting mold; The alloy material cannot enter the first central cylinder and the second central cylinder so as to form a mounting hole that penetrates the wheel body of the alloy guide wheel; the alloy material enters the cavity between the first die-cast annular surface and the second die-cast annular surface so as to form a flat wheel body of the alloy guide wheel and make both sides of the wheel body flat; The alloy material enters the first functional cavity and the second functional cavity and cooperates with the die-casting ring to form the functional part of the alloy guide wheel; S3, after the alloy material is cooled, the front mold core, the rear mold core and the two core pulling pieces in the die-casting mold are opened, and the alloy guide wheel embryo body is obtained by demolding; S4, processing the alloy guide wheel blank to obtain a finished alloy guide wheel.

2. The method for manufacturing an alloy guide wheel according to claim 1, characterized in that: Step S4 specifically includes: S4.1, Rough machining: remove the die-casting nozzle, runner and excess scraps connected to the alloy guide wheel blank; S4.2, finishing: clamping the alloy guide wheel blank on a CNC lathe to finish the surface of the alloy guide wheel blank; S4.

3. Surface treatment: The surface of the alloy guide wheel blank is treated to obtain a finished alloy guide wheel.

3. The method for manufacturing an alloy guide wheel according to claim 1, characterized in that: The first functional cavity is a first annular inclined surface inclined toward the solid side of the front mold core, and the second functional cavity is a second annular inclined surface inclined toward the solid side of the rear mold core and an annular groove surrounding the second annular inclined surface.

4. The method for manufacturing an alloy guide wheel according to claim 1, characterized in that: The first functional cavity is a first annular cavity, and the second functional cavity is a second annular cavity; more than two die-cast half rings are provided on each core pulling block, and there is a gap between every two die-cast half rings.

5. The method for manufacturing an alloy guide wheel according to claim 1, characterized in that: The front mold core and the rear mold core are provided with at least two cavities; the first functional cavity is a first annular inclined surface inclined toward the solid side of the front mold core, and the second functional cavity is a second annular inclined surface inclined toward the solid side of the rear mold core; the inner side of each core pulling block is provided with die-casting half rings corresponding to the number of the cavities.

6. A die-casting mold using the alloy guide wheel manufacturing method according to any one of claims 1 to 5, characterized in that: It includes a front mold core, a rear mold core and two core pulls; The cavity of the front mold core is provided with the following from inside to outside: a first central cylinder for forming a mounting hole; A first die-cast annular surface for forming a wheel body; A first functional cavity, used for forming a functional part; The cavity of the rear mold core is provided with the following components from the inside to the outside: a second central cylinder for forming a mounting hole; A second die-cast annular surface for forming the wheel body; The second functional cavity is used for forming the functional part; A die-casting half ring is provided on the inner side of each core puller, and two core pullers are opposite to each other and can be inserted into the mold cavity from between the front mold core and the rear mold core; After the front mold core, the rear mold core and the core pulling are combined, the first central cylinder and the second central cylinder are coaxial, and there is no gap between the first central cylinder and the second central cylinder, the first die-casting ring surface and the second die-casting ring surface are coaxial, and there is a gap between the first die-casting ring surface and the second die-casting ring surface and they are parallel to each other, the first functional cavity and the second functional cavity are opposite to each other, the two die-casting half rings on the core pulling are combined with each other to form a die-casting ring, and the die-casting ring is located between the first functional cavity and the second functional cavity.

7. The die-casting mold according to claim 6, characterized in that: The first functional cavity is a first annular inclined surface inclined toward the solid side of the front mold core, and the second functional cavity is a second annular inclined surface inclined toward the solid side of the rear mold core and an annular groove surrounding the second annular inclined surface.

8. The die-casting mold according to claim 6, characterized in that: The first functional cavity is a first annular cavity, and the second functional cavity is a second annular cavity; more than two die-cast half rings are provided on each core pulling block, and there is a gap between every two die-cast half rings.

9. The die-casting mold according to claim 6, characterized in that: The front mold core and the rear mold core are provided with at least two cavities; the first functional cavity is a first annular inclined surface inclined toward the solid side of the front mold core, and the second functional cavity is a second annular inclined surface inclined toward the solid side of the rear mold core; the inner side of each core pulling block is provided with die-casting half rings corresponding to the number of the cavities.

10. The die-casting mold according to claim 6, characterized in that: The front mold core is provided with a plurality of first material-reducing cylinders for forming weight-reducing holes on the first die-casting annular surface, with the first central cylinder as the symmetry center; The rear mold core is provided with a plurality of second material-reducing cylinders for forming weight-reducing holes on the second die-casting annular surface, with the second central cylinder as the symmetry center; After the front mold core, the rear mold core and the core pulling are combined, the first subtractive cylinder and the second subtractive cylinder are coaxial, and there is no gap between the first subtractive cylinder and the second subtractive cylinder.

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