Injection mold of integrated wind wheel

Abstract

The invention relates to the technical field of wind wheel manufacturing, and discloses an injection mold of an integrated wind wheel, the integrated wind wheel comprises a base and fan blades, and the injection mold comprises a front mold core; the rear mold core is arranged below the front mold core and comprises a columnar part protruding towards the front mold core, the columnar part comprises a cavity, and a forming cavity of the base is defined by the inner side wall of the cavity and the lower portion of the front mold core; the plurality of pitched roofs are arranged on the peripheral side of the columnar part and are annularly arranged; the sliding blocks are arranged on the peripheral side of the columnar part and are in abutting fit with the pitched roof and the peripheral side of the columnar part, and a fan blade forming cavity is defined by the sliding blocks, the front mold core and the pitched roof; wherein the fan blade comprises a first side close to the columnar part and a second side opposite to the first side and away from the columnar part, and the pitched roof is arranged between the columnar part and the first side; and during demolding, the sliding block moves outwards relative to the columnar part to be separated from the rear mold core, and the pitched roof moves upwards to jack up the front mold core, so that the integrated wind wheel is taken out of the injection mold. Therefore, the yield of the integrated wind wheel is improved.

Description

Technical Field

[0001] The present application relates to the technical field of wind wheel manufacturing, and particularly relates to an injection mold for an integrated wind wheel. Background Art

[0002] Currently, the fan blades and the base of the wind wheel are usually separated. After the two products are injection molded, they are assembled in subsequent processes. The processes are complex, time-consuming and laborious, the production efficiency is low, it is not suitable for mass production, and the structural strength at the assembly part is relatively low, failing to meet the performance requirements of some usage scenarios.

[0003] In the injection mold for an integrated wind wheel, undercuts are formed at the fan blade part of the wind wheel, which is not convenient for mold opening, and the yield rate of the integrated wind wheel is relatively low.

[0004] The related art discloses an injection mold for an energy-saving centrifugal impeller, including a fixed mold and a movable mold. The movable mold includes a B plate, a slider assembly, a first bearing plate, and a second bearing plate that are sequentially connected to each other; a cavity is formed between the B plate and the fixed mold; the slider assembly includes a driving mechanism having a lever; the lever passes through the B plate and is connected to a double-core pulling mechanism. The double-core pulling mechanism includes a plurality of double-core pulling blocks; one ends of all the double-core pulling blocks are sequentially arranged in a ring to enclose a central hole; the double-core pulling block includes a slider and a sliding seat that are connected to each other; the shape of the slider is the same as the shape of the gap between adjacent blades of the impeller; an undercut groove and a demolding groove are sequentially provided on the top of the slider, and the undercut grooves and the demolding grooves of all the sliders are sequentially communicated to form an annular undercut groove and an annular demolding groove.

[0005] In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:

[0006] Although the related art can obtain an integrated wind wheel, when demolding, it is necessary to rotate the driving disk through a transmission wheel, drive the arc-shaped guide hole to rotate, and drive the component to move along the path of the arc-shaped guide hole through the guidance of the arc-shaped guide hole to realize mold pressing and demolding. The structure is complex, and when demolding, it is necessary to rotate the slider first to separate the undercut structure between the slider and the top surface of the impeller to obtain a complete integrated wind wheel.

[0007] It should be noted that the information disclosed in the above background art section is only used to enhance the understanding of the background of the present application, and therefore may include information that does not constitute the prior art known to those of ordinary skill in the art. Summary of the Invention

[0008] To have a basic understanding of some aspects of the disclosed embodiments, a simple summary is given below. The summary is not a general review, nor is it intended to identify key / important constituent elements or delineate the protection scope of these embodiments, but rather serves as a preface to the subsequent detailed description.

[0009] Embodiments of the present disclosure provide an injection mold for an integrated wind wheel to solve the problem of undercuts formed at the wind wheel blades in the injection mold for the integrated wind wheel, which is not convenient for mold opening, and improve the yield rate of the integrated wind wheel.

[0010] According to an embodiment of the present invention, there is provided an injection mold for an integrated wind wheel. The integrated wind wheel includes a base and blades. The injection mold includes: a front mold core; a rear mold core disposed below the front mold core, including a columnar portion protruding toward the front mold core. The columnar portion includes a cavity, and the inner side wall of the cavity and the lower portion of the front mold core enclose a forming cavity for the base; a plurality of lifters disposed on the outer peripheral side of the columnar portion and arranged in a ring shape; a plurality of sliders disposed on the outer peripheral side of the columnar portion and in abutting cooperation with the lifters and the outer peripheral side of the columnar portion, and enclosing a forming cavity for the blades with the front mold core and the lifters. Wherein, the blades include a first side close to the columnar portion and a second side relatively far from the columnar portion away from the first side. The lifters are disposed between the columnar portion and the first side. During demolding, the sliders move outward relative to the columnar portion to disengage from the rear mold core, and the lifters move upward to lift the front mold core so that the integrated wind wheel can be taken out of the injection mold.

[0011] Optionally, the lifter includes: a first side wall extending vertically, and a first groove is provided on the surface facing the blades. The first groove is configured to accommodate the first side of the blades.

[0012] Optionally, the slider includes: a second side wall vertically disposed and spirally extending from the first lifter toward the outer peripheral circle of the columnar portion; a third side wall vertically disposed and spirally extending from the second lifter toward the outer peripheral circle of the columnar portion. Wherein, the first lifter and the second lifter are adjacently arranged. The plurality of sliders include adjacent first sliders and second sliders. The second side wall of the first slider, the third side wall of the second slider, and the first groove of the lifter jointly enclose the forming cavity for the blades.

[0013] Optionally, the slider further includes: a fourth side wall vertically disposed and spirally extending toward the outer peripheral circle of the columnar portion, and in abutting contact with both the outer peripheral side of the columnar portion and the outer side of the lifter, and located on the same side of the slider as the third side wall; a fifth side wall horizontally connecting the third side wall and the fourth side wall and abutting against the first side wall, and the abutting position is located outside the first groove; a sixth side wall horizontally connecting the second side wall and the fourth side wall and abutting against the first side wall, and the abutting position is located inside the first groove.

[0014] Optionally, a second groove is provided on the outer peripheral side of the columnar portion and arranged in a ring shape along the outer peripheral side of the columnar portion. The lifters are disposed in the second groove.

[0015] Optionally, the lifter includes: an assembly portion disposed in the second groove; a support portion connected to the assembly portion for supporting the injection mold.

[0016] Optionally, the rear mold core further includes: a base, which is arranged below the columnar portion and is provided with a mounting hole that passes through the thickness of the base, and the support portion is arranged in the mounting hole.

[0017] Optionally, the length of the assembly portion is greater than the length of the mounting hole, and the width of the assembly portion is greater than the width of the mounting hole.

[0018] Optionally, the sloping top also includes: a seventh side wall, extending vertically and arranged on both sides of the second groove opposite to the first side of the fan blade, and a tenon structure is provided on the surface facing the second groove; the second groove is correspondingly provided with a mortise structure, and the tenon structure and the mortise structure cooperate to enable the assembly part to be installed in the second groove.

[0019] Optionally, the second groove includes: a first guiding inclined surface, and along a direction from outside to inside, the first guiding inclined surface is inclined toward the direction where the second groove is located.

[0020] Optionally, the assembly portion includes: a second guiding inclined surface, located in the second groove and abutting against the first guiding inclined surface.

[0021] Optionally, the angle between the support portion and the vertical plane is 5°-15°.

[0022] Optionally, the base further includes: a plurality of positioning blocks, and the sliding block is arranged between two adjacent positioning blocks.

[0023] Optionally, the number of the sliders is seven, and the angle between two adjacent sliders is 51.43°.

[0024] The injection mold for the integrated wind wheel provided in the embodiments of the present disclosure can achieve the following technical effects:

[0025] At present, the molding cavity of the fan blade is mostly composed of two adjacent sliders. When demolding, there is an undercut structure between one of the sliders and the side of the fan blade close to the columnar portion, which makes it difficult for the slider to smoothly exit the injection molding space. In the embodiment disclosed in the present invention, a slanted top is set between the first side of the fan blade and the columnar portion, and the undercut structure is transferred between the slanted top and the fan blade. In this way, there is no undercut structure between the slider and the fan blade. When demolding, the slider can smoothly move outward relative to the columnar portion to separate from the rear mold core and can exit the injection molding space without rotation. The slanted top moves upward to avoid the interference of the undercut structure, thereby removing the integrated wind wheel from the injection mold, thereby improving the yield of the integrated wind wheel. Moreover, the structure of the combination of the slider and the slanted top is simple, the production process of the wind wheel is simple, the production rate is high, and the structural strength is enhanced, which can meet the performance requirements of various usage occasions.

[0026] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] One or more embodiments are exemplarily illustrated by corresponding drawings. These exemplary illustrations and the drawings do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements. The drawings do not constitute a scale limitation, and wherein:

[0028] Figure 1 is a schematic structural diagram of an injection mold for an integral wind wheel provided by an embodiment of the present disclosure;

[0029] Figure 2 is a schematic structural diagram of the first perspective after demolding of an integral wind wheel provided by an embodiment of the present disclosure;

[0030] Figure 3 is a schematic structural diagram of the second perspective after demolding of an integral wind wheel provided by an embodiment of the present disclosure;

[0031] Figure 4 is a schematic structural diagram of the injection mold after removing the front mold core provided by an embodiment of the present disclosure;

[0032] Figure 5 is a schematic structural diagram of the assembly process of the lifter, slider and rear mold core provided by an embodiment of the present disclosure;

[0033] Figure 6 is a schematic structural diagram of the rear mold core provided by an embodiment of the present disclosure.

[0034] Reference numerals:

[0035] 10: injection mold; 11: front mold core;

[0036] 12: rear mold core; 121: columnar part; 1211: cavity; 1212: second groove; 1213: mortise structure; 1214: first guiding inclined surface; 122: base body; 1221: mounting hole; 1222: positioning block;

[0037] 13: lifter; 131: first side wall; 1311: first groove; 132: first lifter; 133: second lifter; 134: assembly part; 1341: second guiding inclined surface; 135: supporting part; 136: seventh side wall; 1361: tenon structure;

[0038] 14: slider; 141: second side wall; 142: third side wall; 143: first slider; 144: second slider; 145: fourth side wall; 146: fifth side wall; 147: sixth side wall;

[0039] 20: integral wind wheel; 21: base; 22: fan blade; 221: first side; 222: second side; 223: blade surface;

[0040] 30: undercut structure. Detailed implementation manners

[0041] In order to more comprehensively understand the features and technical content of the embodiments of the present disclosure, the implementation of the embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are only for reference and explanation, and are not used to limit the embodiments of the present disclosure. In the following technical description, for the sake of explanation, numerous details are provided to give a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be shown in a simplified manner to simplify the drawings.

[0042] In the description of the embodiments of the present disclosure, terms such as "first" and "second" in the specification, claims, and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily have to be used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances for the embodiments of the present disclosure described herein. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion.

[0043] In the embodiments of the present disclosure, the orientation or positional relationship indicated by terms such as "upper", "lower", "inner", "middle", "outer", "front", and "rear" is based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the embodiments of the present disclosure and their embodiments, and are not used to limit that the indicated devices, elements, or components must have a specific orientation or be constructed and operated in a specific orientation. Moreover, in addition to being able to represent an orientation or positional relationship, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0044] In addition, the terms "arranged", "connected", and "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or there can be internal communication between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0045] Unless otherwise specified, the term "plurality" means two or more.

[0046] In the embodiments of the present disclosure, the character " / " indicates that the objects before and after are in an "or" relationship. For example, A / B means: A or B.

[0047] The term "and / or" describes the relationship between objects and indicates that there can be three relationships. For example, A and / or B means: A or B, or, the three relationships of A and B.

[0048] It should be noted that, without conflict, the embodiments in the present disclosure and the features in the embodiments can be combined with each other.

[0049] Combined Figure 1-6 As shown, the present disclosure embodiment provides an injection mold 10 for an integrated wind wheel 20. The integrated wind wheel 20 includes a base 21 and fan blades 22. The injection mold 10 includes a front mold core 11, a rear mold core 12, a plurality of lifters 13, and a plurality of sliders 14. The rear mold core 12 is disposed below the front mold core 11. The rear mold core 12 includes a columnar portion 121 protruding toward the front mold core 11. The columnar portion 121 includes a cavity 1211. The inner sidewall of the cavity 1211 and the lower portion of the front mold core 11 enclose a forming cavity for the base 21. The plurality of lifters 13 are disposed on the outer peripheral side of the columnar portion 121 and are arranged in a ring shape. The plurality of sliders 14 are disposed on the outer peripheral side of the columnar portion 121 and are in abutting cooperation with the outer peripheral sides of the lifters 13 and the columnar portion 121. The sliders 14 and the front mold core 11 and the lifters 13 enclose a forming cavity for the fan blades 22. Among them, the fan blades 22 include a first side 221 close to the columnar portion 121 and a second side 222 relatively far from the columnar portion 121 away from the first side 221. The lifters 13 are disposed between the columnar portion 121 and the first side 221. During demolding, the sliders 14 move outward relative to the columnar portion 121 to disengage from the rear mold core 12, and the lifters 13 move upward to lift the front mold core 11, so that the integrated wind wheel 20 can be taken out from the injection mold 10.

[0050] The inner sidewall of the cavity 1211 and the lower portion of the front mold core 11 enclose a forming cavity for the base 21, and the sliders 14 and the front mold core 11 and the lifters 13 enclose a forming cavity for the fan blades 22. In this way, the base 21 of the wind wheel and the fan blades 22 are connected together by the front mold core 11 to obtain the integrated wind wheel 20.

[0051] It can be understood that currently, the forming cavity of the fan blades 22 is mostly formed by two adjacent sliders 14. During demolding, there is an undercut structure 30 between one of the sliders 14 and the side of the fan blades 22 close to the columnar portion 121, which is not conducive to the smooth withdrawal of the sliders 14 from the injection space.

[0052] The injection mold 10 of the integrated wind wheel 20 provided by the embodiment of the present disclosure is used, and a slanted top 13 is set between the first side 221 of the fan blade 22 and the columnar portion 121, and the undercut structure 30 is transferred between the slanted top 13 and the fan blade 22, so that there is no undercut structure 30 between the slider 14 and the fan blade 22. During demolding, the slider 14 can smoothly move outward relative to the columnar portion 121 to disengage from the rear mold core 12, and can exit the injection molding space without rotating. The slanted top 13 moves upward to avoid interference from the undercut structure 30, thereby removing the integrated wind wheel 20 from the injection mold 10, thereby improving the yield of the integrated wind wheel 20. Moreover, the structure of the combination of the slider 14 and the slanted top 13 is simple, the production process of the wind wheel is simple, the production rate is high, and the structural strength is enhanced, which can meet the performance requirements of various usage occasions.

[0053] Optionally, combined Figure 3-5 As shown, the inclined roof 13 includes a first side wall 131 extending vertically. A surface of the first side wall 131 facing the blade 22 is provided with a first groove 1311 , wherein the first groove 1311 is configured to accommodate the first side 221 of the blade 22 .

[0054] Thus, first groove 1311 forms a molding cavity of first side 221 of blade 22. It is understood that blade 22 also extends vertically, and the vertically extending portion is defined as blade surface 223. Then, first side 221 and second side 222 are relatively arranged on both sides of blade surface 223.

[0055] Optionally, the slider 14 includes a second side wall 141 and a third side wall 142. The second side wall 141 is vertically arranged and spirally extends from the first inclined top 132 toward the outer circumference of the columnar portion 121. The third side wall 142 is vertically arranged and spirally extends from the second inclined top 133 toward the outer circumference of the columnar portion 121. The first inclined top 132 and the second inclined top 133 are adjacently arranged. The multiple sliders 14 include a first slider 143 and a second slider 144 that are adjacently arranged, and the second side wall 141 of the first slider 143, the third side wall 142 of the second slider 144, and the first groove 1311 of the inclined top 13 together enclose a forming cavity for the fan blade 22.

[0056] In this way, a forming cavity for the fan blade 22 is jointly enclosed between two adjacent sliders 14 and a slanted top 13. The first groove 1311 is located on the side of the forming cavity of the fan blade 22 close to the columnar portion 121, and is used to form the first side 221 of the fan blade 22. The second side wall 141 and the third side wall 142 are used to form the blade surface 223 and the second side 222 of the fan blade 22.

[0057] Since the forming cavity of the fan blade 22 is jointly defined by the second side wall 141 of the first slider 143, the third side wall 142 of the second slider 144, and the first groove 1311 of the lifter 13, the second side wall 141 and the third side wall 142 are respectively located on both sides of the slider 14.

[0058] Optionally, as shown in Figure 3-5 the slider 14 further includes a fourth side wall 145, a fifth side wall 146, and a sixth side wall 147. The fourth side wall 145 is vertically arranged and spirally extends towards the outer peripheral direction of the columnar portion 121. The fourth side wall 145 is in contact with both the outer peripheral side of the columnar portion 121 and the outer side of the lifter 13. The fourth side wall 145 and the third side wall 142 are located on the same side of the slider 14. The fifth side wall 146 horizontally connects the third side wall 142 and the fourth side wall 145. The fifth side wall 146 is in contact with the first side wall 131, and the contact position is outside the first groove 1311. The sixth side wall 147 horizontally connects the second side wall 141 and the fourth side wall 145 and is in contact with the first side wall 131, and the contact position is inside the first groove 1311.

[0059] The fourth side wall 145 is in contact with both the outer peripheral side of the columnar portion 121 and the outer side of the lifter 13, that is, the fourth side wall 145 is located on the side of the slider 14 close to the columnar portion 121, and the fourth side wall 145 and the third side wall 142 are located on the same side of the slider 14, that is, both the third side wall 142 and the fourth side wall 145 are located on the side of the slider 14 close to the columnar portion 121. The fifth side wall 146 horizontally connects the third side wall 142 and the fourth side wall 145, indicating that although the third side wall 142 and the fourth side wall 145 are located on the same side of the slider 14, their surfaces are not on the same vertical plane.

[0060] The second side wall 141 and the third side wall 142 are respectively located on both sides of the slider 14, and the fourth side wall 145 and the third side wall 142 are located on the same side of the slider 14. Then, the second side wall 141 and the fourth side wall 145 are respectively located on both sides of the slider 14, and the fourth side wall 145 is located on the side of the slider 14 close to the columnar portion 121, so the second side wall 141 is located on the side of the slider 14 away from the columnar portion 121. The sixth side wall 147 horizontally connects the second side wall 141 and the fourth side wall 145, indicating that the second side wall 141 and the fourth side wall 145 are located on both sides of the front end of the slider 14, and the sixth side wall 147 is located at the front end of the slider 14.

[0061] In this way, the fourth side wall 145 of the second slider 144 abuts against both the outer peripheral side of the columnar portion 121 and the outer side of the lifter 13, and the fifth side wall 146 abuts against the first side wall 131, restricting the inward and forward movement of the second slider 144; the sixth side wall 147 of the first slider 143 abuts against the first side wall 131, restricting the forward movement of the first slider 143. The abutting position of the fifth side wall 146 of the second slider 144 and the first side wall 131 is located outside the first groove 1311, and the abutting position of the sixth side wall 147 of the first slider 143 and the first side wall 131 is located inside the first groove 1311, that is, the second slider 144 is located outside the lifter 13, and the first slider 143 is located inside the lifter 13.

[0062] Optionally, a second groove 1212 is provided on the outer peripheral side of the columnar portion 121, arranged annularly along the outer peripheral side of the columnar portion 121, and the lifter 13 is arranged in the second groove 1212.

[0063] In this way, the lifter 13 is installed on the rear mold core 12 through the second groove 1212. Because the second groove 1212 is arranged annularly along the outer peripheral side of the columnar portion 121, multiple lifters 13 are also arranged annularly along the outer peripheral side of the columnar portion 121.

[0064] Optionally, multiple sliders 14 are arranged annularly along the outer peripheral side of the columnar portion 121, and each slider 14 is arranged corresponding to one lifter 13.

[0065] In this way, one slider 14 abuts against the outer side of one lifter 13, and multiple sliders 14 and multiple lifters 13 are arranged in one-to-one correspondence.

[0066] Optionally, the lifter 13 includes an assembly portion 134 and a support portion 135. The assembly portion 134 is arranged in the second groove 1212. The support portion 135 is connected to the assembly portion 134 and is used to support the injection mold 10.

[0067] In this way, through the cooperation between the assembly portion 134 and the second groove 1212, the lifter 13 is assembled onto the rear mold core 12. The support portion 135 is used to support the entire injection mold 10.

[0068] Optionally, as shown in Figure 6 the rear mold core 12 further includes a base body 122, and the base body 122 is arranged below the columnar portion 121. The base body 122 is provided with a mounting hole 1221 penetrating through its thickness, and the support portion 135 is arranged in the mounting hole 1221.

[0069] In this way, the support portion 135 is located below the columnar portion 121, and the support portion 135 is connected to the assembly portion 134 through the mounting hole 1221 to support the upper injection mold 10.

[0070] Optionally, the shape of the mounting hole 1221 can be polygonal or circular, adapted to the shape of the supporting part 135.

[0071] The shape of the mounting hole 1221 is adapted to the shape of the supporting part 135, which can enable the supporting part 135 to be assembled onto the base body 122 more stably, avoiding the influence on the supporting stability of the supporting part 135 due to excessive clearance between the mounting hole 1221 and the supporting part 135. In addition, the supporting part 135 is restricted within the mounting hole 1221 and cannot move in the front-back direction and left-right direction, so that the lifter 13 cannot move in the front-back direction and left-right direction.

[0072] Optionally, the length of the assembling part 134 is greater than the length of the mounting hole 1221, and the width of the assembling part 134 is greater than the width of the mounting hole 1221.

[0073] In this way, the assembling part 134 cannot pass through the mounting hole 1221 and move downward, ensuring that the lifter 13 can only move upward during demolding.

[0074] Optionally, as shown in Figure 5 the lifter 13 further includes a seventh side wall 136, which extends vertically and is disposed opposite to the first side 221 of the fan blade 22 on both sides of the second groove 1212. A tenon structure 1361 is provided on the surface of the seventh side wall 136 facing the second groove 1212, and a mortise structure 1213 is correspondingly provided in the second groove 1212. The tenon structure 1361 and the mortise structure 1213 cooperate to install the assembling part 134 into the second groove 1212.

[0075] The seventh side wall 136 extends vertically and is disposed opposite to the first side 221 of the fan blade 22 on both sides of the second groove 1212. The first side wall 131 is located on the first side 221 of the fan blade 22, that is, the seventh side wall 136 and the first side wall 131 are disposed opposite to each other on both sides of the lifter 13 and are respectively abutted against both sides of the second groove 1212.

[0076] A tenon structure 1361 is provided on the surface of the seventh side wall 136 facing the second groove 1212, and a mortise structure 1213 is correspondingly provided in the second groove 1212. In this way, through tenon and mortise connection, the seventh side wall 136 is connected to the second groove 1212, and further the assembling part 134 is connected to the columnar part 121, thereby connecting the lifter 13 to the rear mold core 12.

[0077] It can be understood that it can also be that a mortise structure 1213 is provided on the surface of the seventh side wall 136 facing the second groove 1212, and a tenon structure 1361 is correspondingly provided in the second groove 1212.

[0078] Optionally, the second groove 1212 includes a first guiding inclined surface 1214 which inclines in the direction from the outside to the inside towards the direction where the second groove 1212 is located.

[0079] In this way, during the assembly process of the lifter 13 and the rear mold core 12, the first guiding inclined surface 1214 can guide the assembly part 134 to be smoothly inserted into the second groove 1212.

[0080] Optionally, the assembly part 134 includes a second guiding inclined surface 1341 which is located in the second groove 1212 and abuts against the first guiding inclined surface 1214.

[0081] In this way, during the assembly process of the lifter 13 and the rear mold core 12, the second guiding inclined surface 1341 can guide the second groove 1212 to smoothly complete the assembly action with the assembly part 134. The second guiding inclined surface 1341 abuts against the first guiding inclined surface 1214 so that the assembly part 134 abuts against the second groove 1212.

[0082] Optionally, the included angle between the supporting part 135 and the vertical plane is 5° - 15°.

[0083] An included angle is formed between the supporting part 135 and the vertical plane. In this way, the stability of the supporting part 135 is increased through the triangular structure. When the included angle is above 5°, the function of increasing the supporting stability can be realized, avoiding the situation that the included angle is too small to play the role of increasing the stable support of the supporting part 135. When the included angle is below 15°, the arrangement of multiple supporting parts 135 is neater, avoiding the mess caused by too large an included angle and affecting the appearance.

[0084] Optionally, as shown in Figure 1 the included angle between the supporting part 135 and the vertical plane is 10°.

[0085] Through a large number of test results, the optimal included angle between the supporting part 135 and the vertical plane is 10°.

[0086] Optionally, as shown in Figure 6 the base body 122 further includes a plurality of positioning blocks 1222, and the slider 14 is arranged between two adjacent positioning blocks 1222.

[0087] In this way, the position of the slider 14 on the base body 122 is preliminarily determined by the positioning blocks 1222, which is convenient for subsequent operations.

[0088] Optionally, as shown in Figure 4 the number of the sliders 14 is seven, and the included angle between two adjacent sliders 14 is 51.43°.

[0089] Through a large number of test results, the optimal number of fan blades 22 of the integrated wind wheel 20 is seven. Therefore, the number of sliders 14 is correspondingly set to seven, and the number of lifters 13 is also correspondingly set to seven. The seven sliders 14 and the seven lifters 13 are arranged in a ring along the outer peripheral side of the columnar portion 121 to form a molding cavity for the seven fan blades 22. Since the seven fan blades 22 are arranged in a ring around the center of the base 21, the seven sliders 14 are arranged in a ring around the center of the cavity 1211. The angle of a complete circle is 360°, so the angle between two adjacent sliders 14 is 51.43°.

[0090] Optionally, a round hole is provided on the slider 14, and the injection mold 10 further includes a dial rod disposed in the round hole. The dial rod can drive the slider 14 to move closer to or away from the columnar portion 121.

[0091] In this way, the connection and separation of the slider 14 and the columnar portion 121 are realized through the dial rod, and the process of moving the slider 14 is more labor-saving.

[0092] The above description and the drawings fully illustrate the embodiments of the present disclosure so that those skilled in the art can practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Unless explicitly required, the individual components and functions are optional, and the order of operations may vary. Some parts and features of some embodiments may be included in or replace parts and features of other embodiments. The embodiments of the present disclosure are not limited to the structures already described and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present disclosure is limited only by the appended claims.

Claims

1. An injection mold for an integrated wind wheel, the integrated wind wheel comprising a base and fan blades, characterized in that, The injection mold includes: The front mold core; The rear mold core, which is arranged below the front mold core and includes a columnar part protruding towards the front mold core. The columnar part includes a cavity, and the inner side wall of the cavity and the lower part of the front mold core enclose a forming cavity for the base; A plurality of lifters, which are arranged on the outer peripheral side of the columnar part and are arranged in a ring shape; A plurality of sliders, which are arranged on the outer peripheral side of the columnar part and are in abutting cooperation with the lifters and the outer peripheral side of the columnar part, and together with the front mold core and the lifters enclose a forming cavity for the fan blade; Among them, the fan blade includes a first side close to the columnar part and a second side far from the columnar part relative to the first side. The lifter is arranged between the columnar part and the first side. During demolding, the slider moves outwards relative to the columnar part to disengage from the rear mold core, and the lifter moves upwards to push up the front mold core, so that the integrated wind wheel can be taken out of the injection mold.

2. The injection mold according to claim 1, characterized in that, The lifter includes: The first side wall, which extends vertically and has a first groove on the surface facing the fan blade. The first groove is configured to accommodate the first side of the fan blade.

3. The injection mold according to claim 2, characterized in that the slider Including: The second side wall, which is vertically arranged and spirally extends from the first lifter towards the outer peripheral circle of the columnar part; The third side wall, which is vertically arranged and spirally extends from the second lifter towards the outer peripheral circle of the columnar part, Among them, the first lifter and the second lifter are arranged adjacent to each other. The plurality of sliders include the adjacent first slider and the second slider. The second side wall of the first slider, the third side wall of the second slider and the first groove of the lifter jointly enclose the forming cavity of the fan blade.

4. The injection mold according to claim 3, characterized in that, The slider also includes: The fourth side wall, which is vertically arranged and spirally extends towards the outer peripheral circle of the columnar part, and abuts against both the outer peripheral side of the columnar part and the outer side of the lifter, and is on the same side of the slider as the third side wall; The fifth side wall, which transversely connects the third side wall and the fourth side wall and abuts against the first side wall. The abutting position is outside the first groove; The sixth side wall, which transversely connects the second side wall and the fourth side wall and abuts against the first side wall. The abutting position is inside the first groove.

5. The injection mold according to any one of claims 1 to 4, characterized in that A second groove is provided on the outer peripheral side of the columnar part and is arranged in a ring shape along the outer peripheral side of the columnar part. The lifter is arranged in the second groove.

6. The injection mold according to claim 5, characterized in that, The lifter includes: The assembly part, which is arranged in the second groove; The support part, which is connected to the assembly part and is used to support the injection mold.

7. The injection mold according to claim 6, characterized in that, The rear mold core also includes: The base body, which is arranged below the columnar part and has an installation hole penetrating through its thickness. The support part is arranged in the installation hole.

8. The injection mold according to claim 7, wherein, The length of the assembly part is greater than the length of the installation hole, and the width of the assembly part is greater than the width of the installation hole.

9. The injection mold according to claim 6, wherein, The lifter also includes: The seventh side wall, which extends vertically and is arranged opposite to the first side of the fan blade on both sides of the second groove. The surface facing the second groove is provided with a tenon structure; a mortise structure is correspondingly provided in the second groove, and the tenon structure and the mortise structure cooperate to install the assembly part into the second groove.

10. The injection mold according to claim 6, characterized in that, The second groove includes: The first guiding inclined surface, which is inclined in the direction from outside to inside, and the first guiding inclined surface inclines towards the direction where the second groove is located.

11. The injection mold according to claim 10, characterized in that, The assembly part includes: The second guiding inclined surface, which is located in the second groove and abuts against the first guiding inclined surface.

12. The injection mold according to claim 6, wherein, The angle between the support part and the vertical plane is 5° - 15°.

13. The injection mold according to claim 6, characterized in that, The base body also includes: A plurality of positioning blocks, and the slider is arranged between two adjacent positioning blocks.

14. The injection mold according to any one of claims 1 to 4, characterized in that, The number of sliders is seven, and the angle between two adjacent sliders is 51.43°.

Images