Wire cutting wheel and semi-finished product thereof

Abstract

The embodiment of the utility model discloses a cutting line wheel and a semi-finished product thereof. The cutting line wheel comprises a metal inner shell and a plastic outer shell, the plastic outer shell comprises a wrapping part and a reinforcing part, and the reinforcing part comprises a reinforcing rib set and a reinforcing shell. According to the embodiment of the utility model, the metal inner shell is used as a frame of the cutting line wheel, so that the cutting line wheel has certain structural strength, and then the liquid material is coated outside the metal inner shell to form the plastic outer shell, so that the wear resistance and the corrosion resistance of the cutting line wheel are improved; and corrosion and rusting caused by abrasion of the cutting wire wheel by a metal wire are avoided. Meanwhile, compared with the prior art, under the same size, the quality of the cutting line wheel is greatly reduced through combination of the plastic outer shell and the metal inner shell. In addition, by arranging the reinforcing rib set and the reinforcing shell, the structural strength of the cutting wire wheel in the radial direction is enhanced, and therefore the possibility that the cutting wire wheel is pressed by the metal wire to deform is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of cutting equipment accessories, in particular to a wheel for cutting wire and a semi-finished product thereof. Background Art

[0002] A spool is a tool used to wind rope-like materials such as wire or wire rope.

[0003] Currently, the I-shaped wheel used in cutting equipment is subjected to high pressure due to the high density and long size of the metal wire wound around it. At the same time, the electroplated zinc coating on the surface of the I-shaped wheel is often scratched during use, causing the metal surface of the I-shaped wheel exposed to the environment to corrode and rust. Therefore, the surface of the I-shaped wheel needs to be regularly turned and then re-electroplated. However, re-turning can easily cause the thickness of the I-shaped wheel to become thinner, affecting its strength and, in turn, its service life. At the same time, in order to bear the heavy weight of the metal wire, the I-shaped wheel used in cutting equipment is mostly made of stainless steel or other types of steel, resulting in a large mass of the I-shaped wheel, requiring a large motor to drive the operation of the I-shaped wheel, and also easily wearing the main shaft of the motor.

[0004] Therefore, there is an urgent need for a technology that can solve at least one of the above problems. Utility Model Content

[0005] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a cutting line wheel and a semi-finished product thereof to solve the problem that the spool in the prior art is heavy and easily worn.

[0006] In a first aspect, the present invention provides a wheel for cutting wire, comprising:

[0007] A metal inner shell, wherein the metal inner shell is provided with at least one first glue hole;

[0008] A plastic shell, wherein the plastic shell is formed by injecting liquid plastic into the first glue hole and completely covering the metal inner shell and then solidifying;

[0009] In which, the plastic shell includes an integrally formed covering portion and a reinforcing portion, the covering portion is used to cover the metal inner shell, and the reinforcing portion includes a reinforcing rib group and a reinforcing shell arranged spaced apart from the covering portion, the reinforcing rib group is arranged in the space between the covering portion and the reinforcing shell, and is fixedly connected to the covering portion and the reinforcing shell respectively.

[0010] Based on the above-mentioned cutting wire wheel, the metal inner shell is used as the basic frame of the cutting wire wheel to ensure the structural strength of the cutting wire wheel, and then the liquid material is used to cover the outside of the metal inner shell, thereby improving the wear resistance and corrosion resistance of the cutting wire wheel, avoiding the cutting wire wheel from being worn by the metal wire and causing corrosion and rust. Compared with the existing technology, at the same size, the utility model greatly reduces the mass of the cutting wire wheel; at the same time, the overall structural strength of the cutting wire wheel is further strengthened by the reinforcing rib group and the reinforcing shell, avoiding the cutting wire wheel from being deformed by the metal wire while reducing the mass.

[0011] In one embodiment of the above-mentioned wheel for cutting wire, the reinforcing rib group includes at least two reinforcing ribs equidistantly distributed along the outer circumference of the reinforcing shell.

[0012] In one embodiment of the above-mentioned wheel for cutting wire, the reinforcing shell is coaxially arranged with the metal inner shell.

[0013] In one embodiment of the above-mentioned wheel for cutting wire, a circumferential plate integrally formed therewith is provided around the outer circumference of the reinforcement shell, and the reinforcement ribs extend along the axial direction of the reinforcement shell to be integrally formed with the circumferential plate.

[0014] In one embodiment of the above-mentioned wheel for cutting wire, the reinforcing rib is provided with an oblique portion at one end thereof extending axially outward from the metal inner shell, and the oblique portion is used for docking with the wire feeding and receiving structure.

[0015] In one embodiment of the above-mentioned wheel for cutting wire, at least two of the first glue holes form a first hole group, and the first hole group has at least two holes and is evenly spaced along the circumference of the metal inner shell;

[0016] Wherein, all the first vias in the first hole group are arranged along a preset direction.

[0017] In one embodiment of the above-mentioned wheel for cutting wire, the metal inner shell is provided with at least two second hole groups equidistantly spaced along its circumference, and the second hole group includes at least one second glue hole arranged along a preset direction;

[0018] The first hole group and the second hole group are alternately arranged along the circumference of the metal inner shell, and the number of the second glue holes in the second hole group is less than the number of the first glue holes in the first hole group.

[0019] In one embodiment of the above-mentioned wheel for cutting wire, first flanges are provided at both axial ends of the metal inner shell, and the first flange is provided with at least one through-going process notch along its circumference.

[0020] In one embodiment of the above-mentioned wheel for cutting wire, at least one third glue hole is formed in the first flange along its thickness direction.

[0021] In a second aspect, the present invention provides a semi-finished product of a wheel for cutting wire, comprising: the semi-finished product includes a casting residual structure provided on the inner side of the reinforcement shell and integrally formed with the reinforcement shell, the casting residual structure being formed by injecting a liquid material into a mold and solidifying it;

[0022] The casting residual structure includes an integrally formed main casting portion, an annular portion, and at least two branch casting portions, wherein the main casting portion is provided at the inner center of the reinforcement shell, the branch casting portions are distributed at equal intervals along the outer periphery of the main casting portion, and the annular portion is provided around the outer periphery of the branch casting portion;

[0023] Among them, the annular portion includes a main annular portion and a secondary annular portion, one end of the main annular portion is connected to the casting portion, and the other end thereof is connected to one end of the secondary annular portion, and the other end of the secondary annular portion is connected to the inner wall of the reinforced shell. Along the axial direction of the metal inner shell, the thickness of the secondary annular portion is less than the thickness of the main annular portion.

[0024] One or more of the above embodiments of the present invention have at least one or more of the following beneficial effects:

[0025] A metal inner shell serves as the frame for the wire-cutting wheel, giving it a certain level of structural strength. Liquid material is then coated around the inner shell to form a plastic outer shell, enhancing the wheel's wear and corrosion resistance and preventing corrosion and rust caused by wear from the metal wire. Compared to existing technologies, the combination of a plastic outer shell and a metal inner shell significantly reduces the wheel's mass for the same size. Furthermore, the provision of a rib assembly and a reinforcing shell enhances the wheel's radial structural strength, reducing the likelihood of deformation from the metal wire.

[0026] Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The disclosure of the present invention will become more easily understood with reference to the accompanying drawings. Those skilled in the art will readily appreciate that these drawings are for illustrative purposes only and are not intended to limit the scope of protection of the present invention. Furthermore, similar numbers in the figures represent similar components, where:

[0028] Figure 1 This is a schematic diagram of the structure of a metal inner shell provided by an embodiment of the present utility model;

[0029] Figure 2 This is a schematic diagram of the structure of a plastic shell provided by an embodiment of the present utility model;

[0030] Figure 3 This is a cross-sectional view of a wheel for cutting wire provided by an embodiment of the present utility model;

[0031] Figure 4 This is a schematic structural diagram of a semi-finished wheel for cutting wire provided by an embodiment of the present invention;

[0032] Figure 5 This is a schematic diagram of a structure of a wheel for cutting wire with edge strips provided by an embodiment of the present invention.

[0033] Figure 6 This is a cross-sectional view for displaying a semi-finished product of a wheel for cutting wire provided by an embodiment of the present invention.

[0034] Description of Reference Numerals

[0035] 1. Metal inner shell; 11. First glue hole; 12. First flange; 121. Process notch; 122. Third glue hole; 2. Plastic outer shell; 21. Covering part; 22. Reinforcement part; 221. Reinforcement rib group; 2211. Reinforcement rib; 2212. Bevel part; 222. Reinforcement shell; 23. Second flange; 231. Positioning hole; 24. Edge strip; 3. Circumferential plate; 4. First hole group; 5. Second hole group; 51. Second glue hole; 6. Casting residual structure; 61. Main pouring part; 62. Sub-pouring part; 63. Ring part; 631. Main ring part; 632. Second ring part. DETAILED DESCRIPTION

[0036] Some embodiments of the present invention are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0037] As described in the background technology, the existing I-shaped wheel for cutting equipment has a large overall mass of the metal wire wound thereon, so the overall structural strength of the I-shaped wheel needs to meet certain standards. In addition, during the use of the I-shaped wheel, the electroplated galvanized coating on the surface is often scratched, causing the metal surface of the I-shaped wheel exposed to the environment to corrode and rust. Therefore, the surface of the I-shaped wheel needs to be regularly turned and then re-electroplated. Currently, the I-shaped wheels are mostly made of stainless steel or other types of steel, resulting in a large mass of the I-shaped wheel. A large motor is required to drive the operation of the I-shaped wheel, and the main shaft of the motor is also easily worn.

[0038] Therefore, the present invention creatively proposes a cutting wire wheel and a semi-finished product thereof, wherein the cutting wire wheel comprises a metal inner shell and a plastic outer shell, wherein the plastic outer shell comprises a covering portion and a reinforcement portion, and the reinforcement portion comprises a rib group and a reinforcement shell. By using the metal inner shell as the basic frame of the cutting wire wheel, the structural strength of the cutting wire wheel is ensured, and then the metal inner shell is coated with liquid material, thereby improving the wear resistance and corrosion resistance of the cutting wire wheel, and preventing the cutting wire wheel from being worn by the metal wire and causing corrosion and rust. Compared with the prior art, the present invention significantly reduces the mass of the cutting wire wheel at the same size; at the same time, the rib group and the reinforcement shell further strengthen the overall structural strength of the cutting wire wheel, and prevent the cutting wire wheel from being deformed by the metal wire while reducing the mass.

[0039] The present invention will be described in detail below through specific embodiments.

[0040] Example 1

[0041] Reference Figures 1 to 5 As shown, the cutting wire wheel includes a metal inner shell 1 and a plastic outer shell 2. The metal inner shell 1 is provided with at least one first glue hole 11. The plastic outer shell 2 is formed by injecting liquid plastic into the first glue hole 11, completely covering the metal inner shell 1, and then solidifying. The plastic outer shell 2 includes an integrally formed covering portion 21 and a reinforcing portion 22. The covering portion 21 is used to cover the metal inner shell 1, and the reinforcing portion 22 includes a group of reinforcing ribs 221 and a reinforcing shell 222 spaced apart from the covering portion 21. The reinforcing rib group 221 is provided in the space between the covering portion 21 and the reinforcing shell 222 and is fixedly connected to the covering portion 21 and the reinforcing shell 222, respectively.

[0042] It should be noted that, depending on actual use needs, the reinforcement portion 22 can be provided on the inner or outer side of the covering portion 21. In this embodiment, due to the structural size and the need for the plastic outer shell 2 to fit the metal inner shell 1, the reinforcement portion 22 is provided on the inner side of the covering portion 21. This reduces the distance between the metal inner shell 1 and the metal wire, thereby stably supporting the metal wire.

[0043] It is understood that the shape of the metal inner shell 1 can be modified as needed to meet the requirements of the cutting equipment. The shape of the metal inner shell 1 can be a frustum, a hollow thin-walled quadrangular prism, a thin-walled cylinder, or a hollow thin-walled polygonal prism. In this embodiment, the metal inner shell 1 is a thin-walled cylinder. Correspondingly, the shape of the plastic outer shell 2 changes with the shape of the metal inner shell 1. In this embodiment, the basic shape of the plastic outer shell 2 is also a thin-walled cylinder.

[0044] In some examples, the plastic housing 2 is injection molded from a high-performance, injection-molding-grade composite material, wherein the high-performance composite material is composed of a base material, a filler, and a wear-resistant additive. The base material includes, but is not limited to, one or more of PA6T, PA9T, PA10T, PPS, PE I, PEEK, PPSU, PA6T / 6I, PA6T / 66, POK, and POM. The filler includes, but is not limited to, one or more of glass fiber, carbon fiber, aramid fiber, graphite, basalt fiber, bamboo fiber, hemp fiber, and ultra-high molecular weight polyethylene fiber. The wear-resistant additive includes, but is not limited to, one or more of molybdenum disulfide, PTFE, and sulfide-resistant materials. This makes the plastic housing 2 resistant to acid and alkali corrosion, creep, and wear.

[0045] It should be noted that the linear expansion coefficient of the high-performance composite material should be as close as possible to the material used for the metal inner shell 1 to ensure the subsequent use of the cutting wire wheel.

[0046] In addition, in this embodiment, the metal inner shell 1 can be made of 45# steel. Of course, the metal inner shell 1 can also be made of other metals and / or alloys with similar or better structural strength, such as 45Mn steel.

[0047] Specifically, the metal inner shell 1 serves as the frame of the cutting wire wheel, giving the cutting wire wheel a certain structural strength. Liquid material is then coated on the outside of the metal inner shell 1 to form a plastic outer shell 2, thereby improving the wear resistance and corrosion resistance of the cutting wire wheel and preventing the cutting wire wheel from being worn by the metal wire, causing corrosion and rust. At the same time, compared with the prior art, at the same size, the combination of the plastic outer shell 2 and the metal inner shell 1 significantly reduces the weight of the cutting wire wheel. Furthermore, by providing a reinforcing rib group 221 and a reinforcing shell 222, the radial structural strength of the cutting wire wheel is enhanced, thereby reducing the possibility of the cutting wire wheel being deformed by the metal wire.

[0048] In some examples, the rib group 221 includes at least two ribs 2211 equidistantly spaced along the outer periphery of the reinforcing shell 222, thereby evenly enhancing the structural strength of the reinforcing shell 222 and the covering portion 21. It should also be noted that the spacing between two adjacent ribs 2211 facilitates incorporating a water channel arrangement into the mold design during injection molding, thereby controlling the molding time of the plastic shell 2.

[0049] It is understood that the number and shape of the reinforcing ribs 2211 need to be determined based on the actual structural strength and size required by the cutting wheel. In this embodiment, the reinforcing ribs 2211 are in the shape of rectangular thin plates, and the ends of the reinforcing ribs 2211 extend to be flush with the ends of the reinforcing shell 222. There are twelve reinforcing ribs 2211.

[0050] Preferably, the reinforcing shell 222 is coaxially arranged with the metal inner shell 1, so that the reinforcing shell 222 and the reinforcing rib group 221 can uniformly support the covering portion 21 and the metal inner shell 1 along the radial direction of the metal inner shell 1, thereby uniformly improving the structural strength of the cutting wire wheel. Of course, depending on the actual use scenario, there may be a certain deviation between the axis of the reinforcing shell 222 and the axis of the metal inner shell 1 to enhance the structural strength of a certain part of the cutting wire wheel.

[0051] Further, refer to Figure 4 As shown, in some examples, a circumferential plate 3 is integrally formed around the outer periphery of the reinforcing shell 222, and reinforcing ribs 2211 extend axially along the reinforcing shell 222 to be integrally formed with the circumferential plate 3. The circumferential plate 3 surrounds the reinforcing shell 222, thereby enhancing the circumferential structural strength of the reinforcing shell 222. In this embodiment, to enhance the uniformity of the structural strength enhancement, the circumferential plate 3 is an entirely annular thin plate. Of course, the circumferential plate 3 can also be configured as other shapes, as long as it meets the structural strength requirements of the cutting wire wheel. Of course, the number of circumferential plates 3 can also be two, three, or even more.

[0052] Of course, the circumferential plate 3 can also be set as an arc-shaped plate, and the circumferential structural strength of the reinforcement shell 222 can be strengthened by using multiple arc-shaped circumferential plates 3.

[0053] In some examples, reference Figure 2 As shown, the reinforcing rib 2211 is provided with an oblique portion 2212 at one end, axially extending outward from the metal inner shell 1. The oblique portion 2212 is used to interface with the wire feeding and receiving structure. Specifically, the oblique portion 2212 is integrally formed with the reinforcing rib 2211 and generally has the shape of a right-angled trapezoidal thin plate. Its large base is connected to the reinforcing rib 2211, its small base is flush with one axial end of the plastic outer shell 2, and its right-angled side is connected to the inner wall of the covering portion 21.

[0054] It should be noted that when using a wire cutting wheel, it is generally necessary to cooperate with the wire feeding and receiving structure. The end of the wire feeding and receiving structure is generally beveled. By cooperating with the beveled portion 2212 and the end of the wire feeding and receiving structure, the efficiency of wire feeding and receiving can be improved.

[0055] In some examples, there may be two, three, or even more first vias 11 , which may be arranged according to a certain preset rule or may be arranged randomly.

[0056] Further, refer to Figure 1As shown, in some examples, at least two first glue holes 11 form a first hole group 4. The first hole group 4 includes at least two holes 11 that are evenly spaced along the circumference of the metal inner shell 1, so that the plastic outer shell 2 and the metal inner shell 1 are evenly and tightly connected along the circumference of the metal inner shell 1. All first glue holes 11 in the first hole group 4 are arranged along a predetermined direction. In this embodiment, the predetermined direction is parallel to the axial direction of the metal inner shell 1.

[0057] In addition, refer to Figure 1 As shown, in some examples, the metal inner shell 1 is provided with at least two second hole groups 5 equidistantly distributed along its own circumference, and the second hole group 5 includes at least one second glue hole 51 arranged along a preset direction; the first hole group 4 and the second hole group 5 are alternately arranged along the circumference of the metal inner shell 1, and the number of the second glue holes 51 in the second hole group 5 is less than the number of the first glue holes 11 in the first hole group 4.

[0058] It should be noted that the size and shape of the first glue hole 11 and the second glue hole 51 can be the same or different. In this embodiment, in order to facilitate processing and improve the uniformity of the connection between the metal inner shell 1 and the plastic outer shell 2, the size and shape of the first glue hole 11 and the second glue hole 51 are the same. And by surrounding the first hole group 4 and the second hole group 5 of the metal inner shell 1, the tightness of the connection between the plastic outer shell 2 and the metal inner shell 1 along the circumference of the metal inner shell 1 is improved; at the same time, by the staggered arrangement of the first hole group 4 and the second hole group 5 and the setting of the smaller number of holes in the second hole group 5, while ensuring the tightness of the connection between the plastic outer shell 2 and the metal inner shell 1, the volume and mass of the metal inner shell 1 are retained, thereby ensuring the structural strength of the metal inner shell 1, and finally achieving a balance between the structural strength and the total mass of the cutting wire wheel.

[0059] It should be noted that, for winding and other considerations, some cutting wire wheels are provided with flange edges at their ends.

[0060] Reference Figure 1 and Figure 2 As shown, in some examples, to enhance the rigidity of the flange edge of the cutting wire wheel segment, a first flange 12 is provided at each axial end of the metal inner shell 1. The first flange 12 has at least one through-cut notch 121 formed along its circumference, thereby reducing stress within the cutting wire wheel. Specifically, the first flange 12 at the end of the metal inner shell 1 is formed by bending.

[0061] In this embodiment, a plurality of process notches 121 are provided along the circumference of the metal inner shell 1 in the thickness direction of the first flange 12, and the process notches 121 extend into the end of the metal inner shell 1 along the axial direction of the metal inner shell 1, thereby uniformly reducing the stress inside the cutting wire wheel along the axial direction of the metal inner shell 1, and reducing the hard burrs caused by bending, thereby reducing the risk of internal cracking of the parts.

[0062] Furthermore, in some examples, the first flange 12 is provided with at least one third glue hole 122 along its thickness direction to improve the tightness of the connection between the plastic shell 2 and the metal inner shell 1. Specifically, the number of the third glue holes 122 can be determined according to the number of the process notches 121, referring to Figure 1 As shown, a third via hole 122 is provided between every two adjacent process notches 121 .

[0063] Furthermore, a corresponding second flange 23 is provided at the end of the plastic shell 2. Positioning holes 231 for inserting the mold insert are provided along the thickness of the second flange 23. This allows the second flange 23 to follow the insert fixed within the mold and move and rotate in the X and Y directions (in a plane parallel to the end of the plastic shell 2). Furthermore, the end surface of the second flange 23 serves as a support surface for the insert, supporting its movement in the Z direction (parallel to the axial direction of the metal inner shell 1) within the mold.

[0064] The shape of the positioning hole 231 can be circular, elliptical, or other regular geometric structures such as square and diamond.

[0065] Reference Figure 5 As shown, in some examples, the outer wall of the plastic housing 2 is provided with at least one edge strip 24. This not only strengthens the structural strength of the plastic housing 2 but also prevents the laser from accidentally cutting other parts of the plastic housing 2 when cutting the metal wire, thereby ensuring the proper recycling of the wire cutting wheel. It should be noted that the edge strip 24 can be raised relative to the outer surface of the plastic housing 2 or flush with the outer circumference of the plastic housing 2, depending on the specific process requirements.

[0066] Specifically, in this embodiment, the outer wall of the plastic shell 2 is evenly spaced along its own circumference with at least two edge strips 24, thereby uniformly improving the structural strength of the plastic shell 2. Figure 5As shown, to further enhance the structural strength and laser-cutting resistance of the plastic housing, the two ends of the edge strip 24 in the longitudinal direction extend toward the adjacent second flange 23. After bonding, they extend radially along the plastic housing 2 to align flush with the outer circumference of the second flange 23. When scrap metal wire or other waste wire is wound around the cutting wheel, manufacturers need to recycle the scrap metal wire. Laser cutting is generally used to quickly recycle the scrap metal wire. During the cutting process, the laser cutting position is adjusted to the location of the edge strip 24, so that the laser cutting only cuts the edge strip 24, thus preventing damage to the cutting wheel.

[0067] In addition, it should be noted that in this embodiment, the edge strip 24 is flush with the outer peripheral surface of the plastic shell 2, that is, during the first injection molding, the outer peripheral surface of the plastic shell 2 is provided with a corresponding number of grooves, and the edge strip 24 is formed by a secondary injection molding process, that is, after the cutting line wheel is processed, it is placed in the corresponding mold, and then the mold is injected with a high-performance material resistant to laser cutting. The high-performance material resistant to laser cutting will enter the corresponding grooves, thereby forming the edge strip 24, so that the corresponding position of the cutting line wheel is resistant to laser cutting. The high-performance material resistant to laser cutting can be polyoxymethylene, polyphenolic or polyfluoroplastic, and a reflective additive or anti-laser absorber can be added to the material to ensure the anti-laser cutting performance of the edge strip 24, thereby improving the service life of the cutting line wheel.

[0068] Example 2

[0069] Corresponding to the above embodiment 1, the present invention also provides a semi-finished product of a cutting wire wheel, referring to Figures 4 to 6As shown, the wheel for cutting wire is mainly formed by injection molding. In order to improve the effect of injection molding and evenly cover the metal inner shell 1 with the plastic shell 2, the semi-finished product includes a casting residual structure 6 provided on the inner side of the reinforcement shell 222 and integrally formed with the reinforcement shell 222. The casting residual structure 6 is formed by injecting liquid material into the mold and solidifying; wherein, the casting residual structure 6 is formed by the solidification of the runner structure injected into the mold. Generally, the runner structure is arranged between the upper core and the lower core of the mold, and is defined and formed after the upper and lower molds are connected. After the wheel for cutting wire is formed, the upper mold and the lower mold are separated from each other, driving the upper core and the lower core to separate from each other, thereby exposing the casting residual structure 6. The casting residual structure 6 can reflect the injection runner path of the wheel for cutting wire. After the wheel for cutting wire is removed from the mold, the casting residual structure 6 needs to be knocked out from the inside of the reinforcement shell 222. Specifically, the cast residual structure 6 includes an integrally formed main casting portion 61, an annular portion 63, and at least two branch casting portions 62. The main casting portion 61 is located at the inner center of the reinforcement shell 222, and the branch casting portions 62 are evenly spaced along the outer periphery of the main casting portion 61. The annular portion 63 is arranged around the outer periphery of the branch casting portion 62. The annular portion 63 includes a main annular portion 631 and a secondary annular portion 632. One end of the main annular portion 631 is connected to the branch casting portion 62, and the other end is connected to one end of the secondary annular portion 632. The other end of the secondary annular portion 632 is connected to the inner wall of the reinforcement shell 222. Along the axial direction of the metal inner shell 1, the thickness of the secondary annular portion 632 is less than that of the main annular portion 631. By providing a thicker main annular portion 631, it is easier for the secondary injection channel in the mold to divert the injection material in the main injection channel. The narrower and thinner secondary annular portion 632 facilitates knocking the cast residual structure 6 out of the interior of the reinforcement shell 222.

[0070] In some examples, there are four sub-pouring portions 62, which are evenly spaced along the outer periphery of the main pouring portion 61 so that the high-performance composite material in a molten state can flow evenly from the four sides of the middle of the molding cavity of the plastic shell 2 to the molding cavity of the plastic shell 2, thereby facilitating the uniform dispersion of the high-performance composite material in the molding cavity of the shell.

[0071] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0072] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0073] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A wheel for cutting wire, characterized in that: The cutting wire wheel comprises: A metal inner shell, wherein the metal inner shell is provided with at least one first glue hole; A plastic shell, wherein the plastic shell is formed by injecting liquid plastic into the first glue hole and completely covering the metal inner shell and then solidifying; In which, the plastic shell includes an integrally formed covering portion and a reinforcing portion, the covering portion is used to cover the metal inner shell, and the reinforcing portion includes a reinforcing rib group and a reinforcing shell arranged spaced apart from the covering portion, the reinforcing rib group is arranged in the space between the covering portion and the reinforcing shell, and is fixedly connected to the covering portion and the reinforcing shell respectively.

2. The cutting wire wheel according to claim 1, wherein: The reinforcing rib group includes at least two reinforcing ribs equidistantly distributed along the outer circumference of the reinforcing shell; and / or, The outer side wall of the plastic shell is provided with at least one edge strip.

3. The cutting wire wheel according to claim 2, wherein: The reinforcement shell is coaxially arranged with the metal inner shell; and / or, The reinforcement portion is arranged on the inner side of the covering portion.

4. The cutting wire wheel according to claim 2, wherein: A circumferential plate integrally formed with the reinforcement shell is disposed around the outer circumference of the reinforcement shell, and the reinforcement ribs extend along the axial direction of the reinforcement shell to be integrally formed with the circumferential plate.

5. The cutting wire wheel according to claim 2, characterized in that: The reinforcing rib is provided with an oblique wedge portion at one end thereof along the axial direction and outward of the metal inner shell, and the oblique wedge portion is used for docking with the wire feeding and receiving structure.

6. The cutting wire wheel according to claim 1, characterized in that: At least two of the first glue holes form a first hole group, and the first hole group has at least two holes and is evenly spaced along the circumference of the metal inner shell; Wherein, all the first vias in the first hole group are arranged along a preset direction.

7. The cutting wire wheel according to claim 6, wherein: The metal inner shell is provided with at least two second hole groups distributed at equal intervals along its own circumference, and the second hole group includes at least one second glue hole arranged along a preset direction; The first hole group and the second hole group are alternately arranged along the circumference of the metal inner shell, and the number of the second glue holes in the second hole group is less than the number of the first glue holes in the first hole group.

8. The cutting wire wheel according to claim 1, wherein: Both axial ends of the metal inner shell are provided with a first flange, and the first flange is provided with at least one through-going process notch along its own circumference.

9. The cutting wire wheel according to claim 8, characterized in that: The first flange is provided with at least one third glue hole along its thickness direction.

10. A semi-finished product of a cutting wire wheel according to any one of claims 1 to 9, characterized in that: The semi-finished product includes a casting residual structure provided on the inner side of the reinforcement shell and integrally formed with the reinforcement shell, wherein the casting residual structure is formed by injecting liquid material into a mold and solidifying it; The casting residual structure includes an integrally formed main casting portion, an annular portion, and at least two branch casting portions, wherein the main casting portion is provided at the inner center of the reinforcement shell, the branch casting portions are distributed at equal intervals along the outer periphery of the main casting portion, and the annular portion is provided around the outer periphery of the branch casting portion; Among them, the annular portion includes a main annular portion and a secondary annular portion, one end of the main annular portion is connected to the casting portion, and the other end thereof is connected to one end of the secondary annular portion, and the other end of the secondary annular portion is connected to the inner wall of the reinforced shell. Along the axial direction of the metal inner shell, the thickness of the secondary annular portion is less than the thickness of the main annular portion.

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