Injection molds and electronic equipment

Abstract

The present application relates to an injection mold and an electronic device. The injection mold includes: a first sub-mold, a second sub-mold, a first positioning mechanism and a second positioning mechanism, the first sub-mold and the second sub-mold enclose a glue injection cavity; the first positioning mechanism includes a first positioning member, the first positioning member is passed through the first sub-mold and partially protrudes from the surface of the first sub-mold facing the glue injection cavity, the first positioning member is used to install a nut arranged in the glue injection cavity, and the length of the first positioning member protruding from the surface of the first sub-mold facing the glue injection cavity is adjustable; the second positioning mechanism includes a second positioning member, the second positioning member is passed through the second sub-mold and protrudes from the surface of the second sub-mold facing the glue injection cavity, the second positioning member abuts against the nut to prevent the nut from moving in the extension direction of the first positioning member. The integrated structure of the plastic parts and nuts prepared by the injection mold has a high product yield.

Description

Technical Field

[0001] The present application relates to the technical field of components of electronic equipment, and in particular to an injection mold and an electronic equipment. Background Art

[0002] In-mold nut is a technology that embeds nuts into plastic parts during the injection molding process. During the injection molding process, the nuts are embedded in the plastic parts and form an integrated structure with the plastic parts. However, during the injection molding process, the nuts are affected by the injection pressure and the flow of the colloid, which may cause the nuts to be surrounded by the plastic and sink relative to the surface of the plastic parts, thereby reducing the product yield of in-mold nut. Summary of the invention

[0003] In view of this, the present application provides an injection mold and an electronic device, wherein the integrated structure of the plastic part and the nut prepared by the injection mold has a higher product yield.

[0004] The present application provides an injection mold, which includes: a first sub-mold, a second sub-mold, a first positioning mechanism and a second positioning mechanism, wherein the first sub-mold and the second sub-mold enclose a glue injection cavity; the first positioning mechanism includes a first positioning piece, the first positioning piece is passed through the first sub-mold and partially protrudes from the surface of the first sub-mold facing the glue injection cavity, the first positioning piece is used to install a nut arranged in the glue injection cavity, and the length of the first positioning piece protruding from the surface of the first sub-mold facing the glue injection cavity is adjustable; the second positioning mechanism includes a second positioning piece, the second positioning piece is passed through the second sub-mold and protrudes from the surface of the second sub-mold facing the glue injection cavity, and the second positioning piece abuts against the nut to prevent the nut from moving in the extension direction of the first positioning piece.

[0005] Furthermore, the first positioning mechanism also includes a locking component, which includes a bite member and a fastener. The bite member is arranged on a side of the first sub-mold away from the second sub-mold, and is used to engage with the first positioning member to limit the movement of the first positioning member along the first direction. The fastener is used to fix the bite member to the first sub-mold. The bite member has a first position and a second position relative to the first sub-mold, and the first position and the second position are arranged along the second direction. When the bite member is in the first position, the bite member engages and locks with the first positioning member to limit the movement of the first positioning member along the first direction. When the bite member is in the second position, the bite member engages and unlocks with the first positioning member, so that the first positioning member can move along the first direction to adjust the length of the first positioning member protruding from the surface of the first sub-mold facing the injection cavity; wherein, the first direction is the arrangement direction of the second sub-mold and the first sub-mold, and the first direction intersects with the second direction.

[0006] Furthermore, the first sub-mold has a through hole, which extends along the first direction; the first positioning member includes a penetration portion, a threaded portion and a bite portion which are connected and arranged along the first direction; the penetration portion is closer to the second sub-mold than the bite portion, and the penetration portion at least partially protrudes from the surface of the first sub-mold facing the second sub-mold, and is used to penetrate and install the nut, the threaded portion is located in the through hole and is threadedly connected to the first sub-mold, and the bite portion at least partially protrudes from the surface of the first sub-mold facing away from the second sub-mold, and is used to engage with the bite portion to limit the relative position of the first positioning member and the first sub-mold.

[0007] Furthermore, the through hole has an internal thread, the threaded portion has an external thread, and the internal thread is threadedly connected to the external thread.

[0008] Further, the through hole includes a first sub-hole and a second sub-hole arranged along a first direction and interconnected, the first sub-hole penetrates the surface of the first sub-mold facing the second sub-mold, the second sub-hole penetrates the surface of the first sub-mold facing away from the second sub-mold, the penetration portion is arranged in the first sub-hole, the threaded portion and the biting portion are arranged in the second sub-hole, the radial dimension of the first sub-hole is smaller than the radial dimension of the second sub-hole, the radial dimension of the penetration portion is smaller than the radial dimension of the threaded portion, and the bottom wall of the second sub-hole is used to limit the threaded portion to limit the maximum length of the first positioning member protruding from the surface of the first sub-mold facing the second sub-mold.

[0009] Furthermore, the nut has a supporting surface. When the nut is arranged in the injection cavity, the supporting surface is the surface of the nut facing away from the first sub-mold. The second positioning member supports the supporting surface. The ratio α of the contact area between the second positioning member and the supporting surface and the area of ​​the supporting surface is in the range of: 0.2≤α≤0.6.

[0010] Furthermore, the nut has a through hole for passing the first positioning piece, and the cross-section of the second positioning piece along the second direction is arc-shaped, the curvature radius of the arc is greater than the radius of the through hole, and the curvature radius of the arc is less than half of the outer diameter of the nut.

[0011] Furthermore, a ratio β of the arc length of the arc to the inner circumference of the nut satisfies the range: 0.25≤β≤0.5.

[0012] Furthermore, the second positioning mechanism also includes a driving motor, a screw and a slider, the power output shaft of the driving motor is connected to the screw, the screw extends along a first direction, the screw sleeve is provided with the slider and is threadedly connected to the slider, the slider is connected to the second positioning piece, when the driving motor is turned on, the driving slider drives the second positioning piece to move toward or away from the second sub-mold.

[0013] The present application also provides an electronic device, which includes: a shell and a processor provided in the present application, the shell is made by the injection mold provided in the present application, and the shell has a receiving cavity; the processor is arranged in the receiving cavity, and the processor is used to process data.

[0014] In the present application, the first sub-mold and the second sub-mold enclose a glue injection cavity. When the first positioning member installs the nut in the glue injection cavity, and then injects plastic into the glue injection cavity and cools it, the plastic in the glue injection cavity forms a plastic part, and the nut is embedded in the plastic part. The injection mold is removed to obtain an integrated structure formed by the plastic part and the nut. The first positioning member is inserted into the first sub-mold and the first positioning member protrudes from the surface of the first sub-mold facing the glue injection cavity is used to install the nut. When the relative positions of the first sub-mold and the second sub-mold are fixed, the first positioning member can fix the relative position of the nut in the glue injection cavity. Furthermore, the length of the first positioning member protruding from the surface of the first sub-mold facing the glue injection cavity is adjustable. Then, the first positioning member can adjust the length of the first positioning member protruding from the surface of the first sub-mold facing the glue injection cavity according to the length of the nut, so that the injection mold can be used for the injection of nuts of different lengths, which is conducive to improving the applicability of the injection mold. Furthermore, the second positioning member is provided through the second sub-mold and protrudes from the surface of the second sub-mold facing the injection cavity, and the second positioning member abuts the nut, so that along the extension direction of the first positioning member, the second positioning member can prevent the nut from moving toward the side away from the first sub-mold, so that the side of the nut close to the first sub-mold can always remain flush with the bottom wall of the injection cavity close to the first sub-mold. In other words, the side of the nut close to the first sub-mold can always abut the surface of the first sub-mold facing the second sub-mold. When the injection cavity is injected with plastic and cooled to form a plastic part, the side of the nut facing the first sub-mold is flush with the side of the plastic part facing the first sub-mold, which can prevent the nut from sinking relative to the surface of the plastic part, which is beneficial to improving the product yield of the integrated structure of the plastic part and the nut obtained by the injection mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the implementation will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 This is a schematic structural diagram of an injection mold according to an embodiment of the present application;

[0017] Figure 2 for Figure 1 The cross-sectional view along the AA direction;

[0018] Figure 3 for Figure 1Another cross-sectional view along the AA direction;

[0019] Figure 4 This is a schematic structural diagram of a locking assembly according to an embodiment of the present application;

[0020] Figure 5 It is a cross-sectional schematic diagram of an integrated structure of a plastic part and a nut obtained by an injection mold according to an embodiment of the present application;

[0021] Figure 6 This is a schematic structural diagram of a second positioning member according to an embodiment of the present application;

[0022] Figure 7 A schematic diagram of the structure of an electronic device according to an embodiment of the present application;

[0023] Figure 8 A circuit block diagram of an electronic device according to an embodiment of the present application.

[0024] Description of reference numerals:

[0025] 100-injection mold, 110-first sub-mold, 111-through hole, 1111-internal thread, 112-first sub-hole, 113-second sub-hole, 120-second sub-mold, 130-injection cavity, 140-first positioning mechanism, 141-first positioning member, 1411-penetrating portion, 1412-threaded portion, 1413-engaging portion, 1414-second gear, 1415-external thread, 142-locking assembly, 1421 -meshing member, 1422-fastening member, 1423-track member, 1424-first gear, 150-second positioning mechanism, 151-second positioning member, 152-driving motor, 153-screw rod, 154-slider, 200-nut, 210-supporting surface, 220-through hole, 300-plastic member, 400-electronic device, 410-housing member, 411-receiving chamber, 420-processor, 430-memory. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0027] The terms "first", "second", etc. in the specification and claims of this application and the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally includes steps or units that are not listed, or optionally includes other steps or units inherent to these processes, methods, products or devices.

[0028] Reference to "embodiment" or "implementation" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiment or implementation may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0029] In-mold nut is a technology that embeds nuts into plastic parts during the injection molding process. During the injection molding process, the nuts are embedded in the plastic parts and form an integrated structure with the plastic parts. However, during the injection molding process, the nuts are affected by the injection pressure and the flow of the colloid, which may cause the nuts to be surrounded by the plastic and sink relative to the surface of the plastic parts, thereby reducing the product yield of in-mold nut.

[0030] At present, the method to solve the problem of the in-mold injection-molded nut sinking relative to the surface of the plastic part is to adjust the injection pressure and injection direction of the mold during injection molding, set the nut on the rear mold side, and fill the plastic from the front mold side to avoid the nut sinking relative to the surface of the plastic part. However, this method is not very effective in preventing the nut from sinking, and the product yield of the in-mold injection-molded nut in the production process is still low.

[0031] See also Figures 1 to 3The embodiment of the present application provides an injection mold 100, the injection mold 100 comprising: a first sub-mold 110, a second sub-mold 120, a first positioning mechanism 140 and a second positioning mechanism 150, the first sub-mold 110 and the second sub-mold 120 enclose a glue injection cavity 130; the first positioning mechanism 140 comprises a first positioning member 141, the first positioning member 141 is penetrated by the first sub-mold 110 and partially protrudes from the surface of the first sub-mold 110 facing the glue injection cavity 130, the first positioning member 141 is used to position The nut 200 is installed in the injection cavity 130, and the length of the first positioning member 141 protruding from the surface of the first sub-mold 110 facing the injection cavity 130 is adjustable; the second positioning mechanism 150 includes a second positioning member 151, which is passed through the second sub-mold 120 and protrudes from the surface of the second sub-mold 120 facing the injection cavity 130, and the second positioning member 151 abuts against the nut 200 to prevent the nut 200 from moving in the extension direction of the first positioning member 141. For the sake of clarity, Figure 3 In the embodiment, the nut 200 , the first positioning member 141 and the plastic member 300 injected into the injection cavity 130 are omitted.

[0032] It can be understood that the first sub-mold 110 and the second sub-mold 120 are arranged opposite to each other, and the first positioning mechanism 140 and the second positioning mechanism 150 are arranged opposite to each other.

[0033] It can be understood that the first positioning member 141 is used to install the nut 200 arranged in the glue injection cavity 130, and the length of the first positioning member 141 protruding from the surface of the first sub-mold 110 facing the glue injection cavity 130 is adjustable. It can be that the first positioning member 141 can be adjusted according to the length of the nut 200 to adjust the length of the first positioning member 141 protruding from the surface of the first sub-mold 110 facing the glue injection cavity 130, so that the side of the nut 200 facing away from the first sub-mold 110 is flush with the side of the first positioning member 141 facing away from the first sub-mold 110.

[0034] It can be understood that the second positioning member 151 abuts against the nut 200 to prevent the nut 200 from moving in the extension direction of the first positioning member 141, or the second positioning member 151 abuts against the side of the nut 200 away from the first sub-mold 110 to prevent the nut 200 from moving along the extension direction of the first positioning member 141 toward the side away from the first sub-mold 110.

[0035] It can be understood that the extension direction of the first positioning member 141 is parallel to the arrangement direction of the second sub-mold 120 and the first sub-mold 110 .

[0036] It can be understood that the side of the first positioning member 141 facing away from the first sub-mold 110 is flush with the side of the nut 200 facing away from the first sub-mold 110; the bottom wall of the injection cavity 130 close to the first sub-mold 110 is flush with the side of the nut 200 close to the first sub-mold 110.

[0037] In this embodiment, the first sub-mold 110 and the second sub-mold 120 enclose a glue injection cavity 130. When the first positioning member 141 installs the nut 200 in the glue injection cavity 130, and then injects plastic into the glue injection cavity 130 and cools it, the plastic in the glue injection cavity 130 forms a plastic part 300, and the nut 200 is embedded in the plastic part 300. The injection mold 100 is removed to obtain an integrated structure formed by the plastic part 300 and the nut 200. The first positioning member 141 is inserted into the first sub-mold 110, and the first positioning member 141 protrudes from the surface of the first sub-mold 110 facing the glue injection cavity 130 for installing the nut 200. When the relative positions of the first sub-mold 110 and the second sub-mold 120 are fixed, the first positioning member 141 can fix the relative position of the nut 200 in the glue injection cavity 130. Furthermore, the length of the first positioning member 141 protruding from the surface of the first sub-mold 110 facing the injection cavity 130 is adjustable. The length of the first positioning member 141 protruding from the surface of the first sub-mold 110 facing the injection cavity 130 can be adjusted according to the length of the nut 200, so that the injection mold 100 can be suitable for the injection molding of nuts 200 of different lengths, which is beneficial to improving the applicability of the injection mold 100. Furthermore, the second positioning member 151 is penetrated by the second sub-mold 120 and protrudes from the surface of the second sub-mold 120 facing the injection cavity 130. The second positioning member 151 abuts the nut 200, so that along the extension direction of the first positioning member 141, the second positioning member 151 can prevent the nut 200 from moving toward the side away from the first sub-mold 110, so that the side of the nut 200 close to the first sub-mold 110 can always remain flush with the bottom wall of the injection cavity 130 close to the first sub-mold 110. In other words, the side of the nut 200 close to the first sub-mold 110 can always abut the surface of the first sub-mold 110 facing the second sub-mold 120. When plastic is injected into the injection cavity 130 and cooled to form a plastic part 300, the side of the nut 200 facing the first sub-mold 110 is flush with the side of the plastic part 300 facing the first sub-mold 110, which can prevent the nut 200 from sinking relative to the surface of the plastic part 300, which is beneficial to improving the product yield of the integrated structure of the plastic part 300 and the nut 200 obtained by the injection mold 100.

[0038] Understandably, in Figure 3 In the embodiment, the shape of the glue injection cavity 130 is only an example of the shape of the glue injection cavity 130 in a specific embodiment, and should not be understood as a limitation on the shape of the glue injection cavity 130 .

[0039] See also Figure 4 In some embodiments, the first positioning mechanism 140 further includes a locking assembly 142, the locking assembly 142 including a bite member 1421 and a fastener 1422, the bite member 1421 is disposed on a side of the first sub-mold 110 away from the second sub-mold 120, and is used to engage with the first positioning member 141 to move the first positioning member 141 along a first direction (such as Figure 2 The fastener 1422 is used to fix the bite member 1421 to the first sub-mold 110. The bite member 1421 has a first position and a second position relative to the first sub-mold 110. The first position and the second position are along the second direction (as shown in FIG. Figure 2 When the bite member 1421 is in the first position, the bite member 1421 is engaged and locked with the first positioning member 141 to limit the movement of the first positioning member 141 along the first direction; when the bite member 1421 is in the second position, the bite member 1421 is engaged and unlocked with the first positioning member 141 to allow the first positioning member 141 to move along the first direction to adjust the length of the first positioning member 141 protruding from the surface of the first sub-mold 110 facing the injection cavity 130; wherein the first direction is the arrangement direction of the second sub-mold 120 and the first sub-mold 110, and the first direction intersects with the second direction.

[0040] It can be understood that the engaging piece 1421 is arranged on the side of the first sub-mold 110 away from the second sub-mold 120, and is used to engage with the first positioning piece 141. It can be that the end of the first positioning piece 141 away from the second sub-mold 120 at least partially protrudes from the side of the first sub-mold 110 away from the second sub-mold 120.

[0041] It can be understood that the fastener 1422 is used to fix the bite piece 1421 to the first sub-mold 110, and the fastener 1422 can fix the relative position of the bite piece 1421 and the first sub-mold 110.

[0042] It can be understood that the engaging member 1421 has a first position and a second position relative to the first sub-mold 110, and the first position and the second position are arranged along the second direction. The engaging member 1421 can move along the second direction toward the direction close to the first positioning member 141 or away from the first positioning member 141.

[0043] It can be understood that the bite member 1421 in the first position is arranged closer to the first positioning member 141 than the bite member 1421 in the second position, and when the bite member 1421 moves along the second direction toward the direction away from the first positioning member 141, the second position changes continuously.

[0044] In this embodiment, the bite member 1421 has a first position and a second position relative to the first sub-mold 110. When the bite member 1421 is in the first position, the bite member 1421 is engaged and locked with the first positioning member 141, and the fastener 1422 fixes the bite member 1421 to the first sub-mold 110. The bite member 1421 is arranged close to the first positioning member 141 and engages with the first positioning member 141. The relative positions of the bite member 1421, the first positioning member 141 and the first sub-mold 110 are fixed to limit the movement of the first positioning member 141 along the first direction, thereby preventing the first positioning member 141 from moving along the first direction toward the first sub-mold 110 or away from the first sub-mold 110. When the first positioning member 141 installs the nut 200 in the injection cavity 130, the relative position of the nut 200 in the injection cavity 130 can be fixed, which is beneficial to improving the product yield of the integrated structure of the plastic key energy and the nut 200 obtained by the injection mold 100. When the bite member 1421 is in the second position, the engagement between the bite member 1421 and the first positioning member 141 is unlocked. In other words, the fastener 1422 is loosened, so that the bite member 1421 is loose relative to the first sub-mold 110 and can move along the second direction. The engagement between the bite member 1421 and the first positioning member 141 is released, so that the first positioning member 141 can move along the first direction toward or away from the first sub-mold 110. When the first positioning member 141 installs the nut 200 in the injection cavity 130, the first positioning member 141 can adjust the length of the first positioning member 141 protruding from the surface of the first sub-mold 110 facing the injection cavity 130 according to the length of the nut 200, thereby improving the applicability of the injection mold 100.

[0045] Optionally, the engaging member 1421 has a first gear 1424, and the end of the first positioning member 141 away from the second sub-mold 120 has a second gear 1414, and the first gear 1424 is meshed with the second gear 1414, so that the engaging member 1421 limits the movement of the first positioning member 141 along the first direction.

[0046] Optionally, the locking assembly 142 also includes a track member 1423, which is arranged on the side of the first sub-mold 110 away from the second sub-mold 120, and the track member 1423 extends along the second direction and the bite member 1421 can be slidably connected to the track member 1423 along the second direction to achieve the transition of the bite member 1421 between the first position and the second position; the fastener 1422 can fix the bite member 1421 on the track member 1423 to achieve the fixation of the bite member 1421 to the first sub-mold 110.

[0047] In some embodiments, the first sub-mold 110 has a through hole 111, and the through hole 111 extends along the first direction; the first positioning member 141 includes a penetration portion 1411, a threaded portion 1412 and a bite portion 1413 that are connected and arranged along the first direction; the penetration portion 1411 is closer to the second sub-mold 120 than the bite portion 1413, and the penetration portion 1411 at least partially protrudes from the surface of the first sub-mold 110 facing the second sub-mold 120, and is used to penetrate and install the nut 200, the threaded portion 1412 is located in the through hole 111 and is threadedly connected to the first sub-mold 110, and the bite portion 1413 at least partially protrudes from the surface of the first sub-mold 110 away from the second sub-mold 120, and is used to engage with the bite member 1421 to limit the relative position of the first positioning member 141 and the first sub-mold 110.

[0048] In this embodiment, the penetration portion 1411 at least partially protrudes from the surface of the first sub-mold 110 facing the second sub-mold 120, and the portion of the penetration portion 1411 protruding from the surface of the first sub-mold 110 facing the second sub-mold 120 is used to penetrate and install the nut 200. When the relative positions of the first sub-mold 110 and the second sub-mold 120 are fixed, the penetration portion 1411 fixes the position of the nut 200 in the injection cavity 130. In addition, the threaded portion 1412 is located in the through hole 111 and is threadedly connected to the first sub-mold 110, so as to install the first positioning member 141 on the first sub-mold 110 and adjust the relative position of the first positioning member 141 and the first sub-mold 110. Furthermore, the engaging portion 1413 at least partially protrudes from the surface of the first sub-mold 110 and engages with the engaging piece 1421. The engaging piece 1421 can engage with the engaging portion 1413 and further fix the relative position of the first positioning piece 141 in the first sub-mold 110, thereby further improving the stability of the relative position of the nut 200 in the injection cavity 130. When the bite piece 1421 is in the first position, the bite piece 1421 is engaged and locked with the bite portion 1413 to limit the movement of the first positioning piece 141 along the first direction; when the bite piece 1421 is in the first position, the bite piece 1421 is engaged, contacted and locked with the bite portion 1413 to allow the first positioning piece 141 to move along the first direction to adjust the length of the first positioning piece 141 protruding from the surface of the first sub-mold 110 facing the injection cavity 130, thereby improving the applicability of the injection mold and improving the stability of the position of the nut 200 in the injection cavity 130, so as to improve the product yield of the integrated structure of the plastic part 300 and the nut 200 obtained by the injection mold 100.

[0049] Optionally, the engaging member 1421 has a first gear 1424 , the engaging portion 1413 has a second gear 1414 , and the first gear 1424 meshes with the second gear 1414 , so that the engaging member 1421 limits the movement of the first positioning member 141 along the first direction.

[0050] In some embodiments, the through hole 111 has an internal thread 1111 , the threaded portion 1412 has an external thread 1415 , and the internal thread 1111 is threadedly connected to the external thread 1415 .

[0051] In this embodiment, the through hole 111 has an internal thread 1111, and the threaded portion 1412 has an external thread 1415. When the first positioning member 141 is inserted into the through hole 111, the internal thread 1111 of the through hole 111 is threadedly connected with the threaded portion 1412, thereby enabling the first positioning member 141 to move relative to the first sub-mold 110. When the length of the nut 200 is long, when the threaded portion 1412 rotates relative to the first sub-mold 110 along the third direction, the external thread 1415 is rotationally connected with the internal thread 1111 along the third direction, so that the first positioning member 141 moves relative to the first sub-mold 110 toward the second sub-mold 120, so that the length of the first positioning member 141 protruding from the surface of the first sub-mold 110 facing the injection cavity 130 becomes longer, so as to adapt to the length of the nut 200 and make the end of the first positioning member 141 away from the first sub-mold 110 flush with the end of the nut 200 away from the first sub-mold 110; When the length of the nut 200 is shorter, when the threaded portion 1412 rotates relative to the first sub-mold 110 along the fourth direction, the external thread 1415 is connected to the internal thread 1111 in a rotational manner along the fourth direction, so that the first positioning member 141 moves relative to the first sub-mold 110 in a direction away from the second sub-mold 120, thereby shortening the length of the first positioning member 141 protruding from the surface of the first sub-mold 110 facing the injection cavity 130, so as to adapt to the length of the nut 200 and make the end of the first positioning member 141 away from the first sub-mold 110 flush with the end of the nut 200 away from the first sub-mold 110. The third direction is opposite to the fourth direction. When the third direction is clockwise, the fourth direction is counterclockwise; when the third direction is counterclockwise, the fourth direction is clockwise.

[0052] In some embodiments, the through hole 111 includes a first sub-hole 112 and a second sub-hole 113 arranged along a first direction and interconnected, the first sub-hole 112 penetrates the surface of the first sub-mold 110 facing the second sub-mold 120, the second sub-hole 113 penetrates the surface of the first sub-mold 110 facing away from the second sub-mold 120, the penetration portion 1411 is arranged in the first sub-hole 112, the threaded portion 1412 and the bite portion 1413 are arranged in the second sub-hole 113, the radial dimension of the first sub-hole 112 is smaller than the radial dimension of the second sub-hole 113, the radial dimension of the penetration portion 1411 is smaller than the radial dimension of the threaded portion 1412, and the bottom wall of the second sub-hole 113 is used to limit the threaded portion 1412 to limit the maximum length of the first positioning member 141 protruding from the surface of the first sub-mold 110 facing the second sub-mold 120.

[0053] It can be understood that the first sub-hole 112 is disposed closer to the second sub-mold 120 than the second sub-hole 113 .

[0054] In this embodiment, the penetration portion 1411 is disposed in the first sub-hole 112, and the threaded portion 1412 and the engaging portion 1413 are disposed in the second sub-hole 113. When the threaded portion 1412 abuts against the bottom wall of the second sub-hole 113, the length of the penetration portion 1411 protruding from the surface of the first sub-mold 110 facing the second sub-mold 120 reaches a maximum value. When the threaded portion 1412 moves relative to the bottom wall of the second sub-hole 113 in a direction away from the first sub-hole 112, the length of the penetration portion 1411 protruding from the surface of the first sub-mold 110 facing the second sub-mold 120 is shortened to accommodate the length of the nut 200 and to make the end of the penetration portion 1411 away from the first sub-mold 110 flush with the end of the nut 200 away from the first sub-mold 110. In this embodiment, the relative position of the first positioning member 141 and the first sub-mold 110 is adjustable, so that the length of the penetration portion 1411 protruding from the surface of the first sub-mold 110 facing the second sub-mold 120 is adjustable, so that the injection mold 100 can adapt to nuts 200 of different lengths to improve the applicability of the injection mold 100.

[0055] It can be understood that the internal thread 1111 of the through hole 111 is arranged in the second sub-hole 113 .

[0056] See also Figure 5 and Figure 6 In some embodiments, the nut 200 has a supporting surface 210. When the nut 200 is set in the injection cavity 130, the supporting surface 210 is the surface of the nut 200 facing away from the first sub-mold 110. The second positioning member 151 resists the supporting surface 210. The ratio α of the contact area between the second positioning member 151 and the supporting surface 210 to the area of ​​the supporting surface 210 is in the range of: 0.2≤α≤0.6.

[0057] Specifically, the value of α can be, but is not limited to, 0.2, 0.22, 0.23, 0.25, 0.26, 0.28, 0.29, 0.3, 0.32, 0.33, 0.35, 0.37, 0.38, 0.4, 0.42, 0.44, 0.46, 0.47, 0.48, 0.52, 0.53, 0.55, 0.56, 0.58, 0.59 and 0.6, etc.

[0058] It can be understood that the surface of the second positioning member 151 facing the first sub-mold 110 is arranged opposite to the abutting surface 210 .

[0059] In this embodiment, when the nut 200 is set in the glue injection cavity 130 and the first positioning mechanism 140 fixes the position of the nut 200 in the glue injection cavity 130, the second positioning member 151 presses against the surface of the nut 200 away from the first sub-mold 110 to prevent the nut 200 from moving toward the side away from the first sub-mold 110, so that the side of the nut 200 close to the first sub-mold 110 can always remain flush with the bottom wall of the glue injection cavity 130 close to the first sub-mold 110. In other words, the side of the nut 200 close to the first sub-mold 110 can always press against the surface of the first sub-mold 110 facing the second sub-mold 120. In addition, the second positioning member 151 abuts against the abutting surface 210, and the ratio α of the abutting area between the second positioning member 151 and the abutting surface 210 and the area of ​​the abutting surface 210 satisfies the range: 0.2≤α≤0.6, so the surface of the second positioning member 151 facing the first sub-mold 110 has a larger contact area with the abutting surface 210, which is conducive to improving the abutting effect of the second positioning member 151 on the nut 200. When the plastic is injected into the injection cavity 130, the second positioning member 151 cooperates with the first positioning member 141 to limit the position of the nut 200 in the first direction, so as to prevent the nut 200 from moving along the first direction toward the direction close to the second sub-mold 120 under the action of the injection pressure and being recessed in the bottom wall of the injection cavity 130 close to the first sub-mold 110, thereby improving the product yield of the integrated structure of the plastic part 300 and the nut 200 obtained by the injection mold 100. When the value of α is too large, the contact area between the surface of the second positioning member 151 facing the first sub-mold 110 and the abutting surface 210 is too large, so that when the plastic is injected into the injection cavity 130, the second positioning member 151 occupies too much volume of the injection cavity 130. When the plastic is cooled and escapes from the injection mold 100, the obtained integrated structure of the plastic part 300 and the nut 200 has a large part of the defect, thereby reducing the structural strength of the plastic part 300. In other words, the product yield of the integrated structure of the plastic part 300 and the nut 200 obtained by the injection mold 100 is reduced. When the value of α is too small, the contact area between the surface of the second positioning member 151 facing the first sub-mold 110 and the abutting surface 210 is too small, so that the abutting effect of the second positioning member 151 on the nut 200 is weak. When plastic is injected into the injection cavity 130, the second positioning member 151 is difficult to resist the injection pressure, so that the nut 200 may move along the first direction toward the direction close to the second sub-mold 120 and be recessed in the bottom wall of the injection cavity 130 close to the first sub-mold 110, thereby reducing the product yield of the integrated structure of the plastic part 300 and the nut 200 obtained by the injection mold 100.

[0060] In some embodiments, the nut 200 has a through hole 220 for passing the first positioning member 141, and the cross-section of the second positioning member 151 along the second direction is arc-shaped, and the curvature radius of the arc is greater than the radius of the through hole 220, and the curvature radius of the arc is less than half of the outer diameter of the nut 200.

[0061] It can be understood that the radius of curvature of the arc is greater than the radius of the through hole 220 , and the radius of curvature of the arc is greater than half of the inner diameter of the nut 200 .

[0062] It can be understood that the radius of curvature of the arc is between half of the inner diameter of the nut 200 and half of the outer diameter of the nut 200 .

[0063] It can be understood that the inner diameter of the nut 200 refers to the diameter of the inner circumference of the nut 200 , and the outer diameter of the nut 200 refers to the diameter of the outer circumference of the nut 200 .

[0064] It can be understood that the orthographic projection of the second positioning member 151 on the surface of the nut 200 facing the first positioning member 141 falls within the range of the nut 200, and the orthographic projection of the second positioning member 151 on the surface of the first sub-mold 110 facing the second sub-mold 120 is staggered with the orthographic projection of the through hole 220 on the surface of the first sub-mold 110 facing the second sub-mold 120.

[0065] In this embodiment, the nut 200 has a through hole 220 for penetrating the penetration portion 1411 of the first positioning member 141, so as to install the nut 200 on the first positioning member 141. In addition, the cross section of the second positioning member 151 parallel to the second direction is arc-shaped, so that the second positioning member 151 can be arranged around the outer circumference of the through hole 220 and abut the nut 200, so as to provide the nut 200 with a force along the first direction and toward the first sub-mold 110, so as to prevent the nut 200 from moving along the first direction toward the direction close to the second sub-mold 120 under the action of the injection pressure and being recessed in the bottom wall of the injection cavity 130 close to the first sub-mold 110, thereby improving the product yield of the integrated structure of the plastic part 300 and the nut 200 obtained by the injection mold 100. Furthermore, the radius of curvature of the arc is greater than the radius of the through hole 220 and the radius of curvature of the arc is greater than half of the outer diameter of the nut 200. When the second positioning member 151 abuts against one end of the nut 200 away from the first sub-mold 110, the orthographic projection of the second positioning member 151 on the surface of the nut 200 facing the first positioning member 141 falls within the range of the nut 200, which is beneficial to enhance the abutting effect of the second positioning member 151 on the nut 200. In addition, when plastic is injected into the injection cavity 130, the orthographic projection of the second positioning member 151 on the surface of the first sub-mold 110 facing the second sub-mold 120 and the orthographic projection of the through hole 220 on the surface of the first sub-mold 110 facing the second sub-mold 120 can be staggered to avoid plastic from entering the gap between the first positioning member 141 and the through hole 220, thereby preventing the plastic from further entering the gap between the nut 200 and the first positioning member 141 and adhering to the first positioning member 141 and the nut 200. After the plastic is cooled, it is convenient for the first positioning member 141 to be pulled out of the through hole 220 of the nut 200 to avoid damage to the plastic part 300, thereby improving the product yield of the integrated structure of the plastic part 300 and the nut 200 obtained by the injection mold 100.

[0066] In some embodiments, a ratio β of the arc length of the arc to the inner circumference of the nut 200 satisfies the range: 0.25≤β≤0.5.

[0067] It can be understood that the inner circumference of the nut 200 refers to the edge length of the inner circumference of the nut 200 .

[0068] Specifically, the value of β can be, but is not limited to, 0.25, 0.26, 0.27, 0.29, 0.31, 0.33, 0.35, 0.36, 0.38, 0.39, 0.40, 0.42, 0.43, 0.45, 0.46, 0.47, 0.48, 0.49 and 0.5, etc.

[0069] In this embodiment, when the ratio β of the arc length to the inner circumference of the nut 200 satisfies the range of 0.25≤β≤0.5, the arc length L1 of the arc is within a reasonable range, so that when the second positioning member 151 resists the end of the nut 200 away from the first sub-mold 110, the arc length of the second positioning member 151 is long enough so that the second positioning member 151 has a large resisting force on the nut 200, so as to prevent the nut 200 from moving along the first direction toward the direction close to the second sub-mold 120 under the action of the injection pressure and being recessed in the bottom wall of the injection cavity 130 close to the first sub-mold 110, thereby improving the product yield of the integrated structure of the plastic part 300 and the nut 200 obtained by the injection mold 100. When the value of β is too large, the length of the arc is too long, so that when the plastic is injected into the injection cavity 130, the second positioning member 151 occupies too much volume of the injection cavity 130. When the plastic is cooled and escapes from the injection mold 100, the obtained plastic part 300 and the nut 200 form an integrated structure, and the plastic part 300 has a large part of defects, thereby reducing the structural strength of the plastic part 300. In other words, the product yield of the integrated structure of the plastic part 300 and the nut 200 obtained by the injection mold 100 is reduced. When the value of β is too small, the contact area between the surface of the second positioning member 151 facing the first sub-mold 110 and the abutting surface 210 is too small, so that the abutting effect of the second positioning member 151 on the nut 200 is weak. When plastic is injected into the injection cavity 130, the second positioning member 151 is difficult to resist the injection pressure, so that the nut 200 may move along the first direction toward the direction close to the second sub-mold 120 and be recessed in the bottom wall of the injection cavity 130 close to the first sub-mold 110, thereby reducing the product yield of the integrated structure of the plastic part 300 and the nut 200 obtained by the injection mold 100.

[0070] In some embodiments, the second positioning mechanism 150 also includes a driving motor 152, a screw rod 153 and a slider 154. The power output shaft of the driving motor 152 is connected to the screw rod 153. The screw rod 153 extends along a first direction. The screw rod 153 is sleeved with the slider 154 and is threadedly connected to the slider 154. The slider 154 is connected to the second positioning member 151. When the driving motor 152 is turned on, the driving slider 154 drives the second positioning member 151 to move toward or away from the second sub-mold 120.

[0071] It can be understood that along the first direction, the driving motor 152 , the slider 154 and the second positioning member 151 are arranged in sequence.

[0072] In this embodiment, the driving motor 152 is used to provide power to the screw rod 153 so that the screw rod 153 rotates. When the slider 154 is sleeved on the outer periphery of the screw rod 153 and the screw rod 153 rotates, the slider 154 is threadedly connected to the screw rod 153 along the first direction, and then drives the second positioning member 151 to move along the first direction. When the slider 154 drives the second positioning member 151 to move along the first direction toward the direction close to the second sub-mold 120, the second positioning member 151 can strengthen the abutment effect of the nut 200 to further strengthen the position limitation of the nut 200 in the first direction, which is conducive to preventing the nut 200 from moving along the first direction toward the direction close to the second sub-mold 120 under the action of the injection pressure and being recessed in the bottom wall of the injection cavity 130 close to the first sub-mold 110, thereby improving the product yield of the integrated structure of the plastic part 300 and the nut 200 obtained by the injection mold 100. In addition, the slider 154 can drive the second positioning member 151 to move toward or away from the second sub-mold 120, so that the second positioning member 151 protruding from the surface of the second sub-mold 120 facing the injection cavity 130 can also be adjusted, and the slider 154 and the second positioning member 151 can cooperate with the first positioning member 141 to adjust the relative position of the second positioning member 151 and the second sub-mold 120 through the length of the nut 200, so as to firmly set the nut 200 in the injection cavity 130.

[0073] See also Figure 7 and Figure 8 The embodiment of the present application also provides an electronic device 400, which includes: a shell 410 and a processor 420 provided in the present application, the shell 410 is made by the injection mold 100 provided in the present application, and the shell 410 has a receiving cavity 411; the processor 420 is arranged in the receiving cavity 411, and the processor 420 is used to process data.

[0074] In this embodiment, the housing member 410 is made by the injection mold 100 provided by the present application, so the housing member 410 has a high product yield, which is conducive to the connection between the housing member 410 and other external devices, and improves the assembly performance of the electronic device 400. In addition, the processor 420 is disposed in the receiving cavity 411, and the processor 420 is used to process data to realize the functions of the electronic device 400.

[0075] Optionally, the shell part 410 includes a plastic part 300 and a nut 200. The plastic part 300 is formed by cooling the plastic injected into the injection cavity 130 and demolding the plastic. The nut 200 is embedded in the plastic part 300. The plastic part 300 and the nut 200 are an integrated structure. The nut 200 is used to realize the threaded connection between the shell part 410 and other external devices.

[0076] Optionally, the electronic device 400 further includes a memory 430 , wherein the memory 430 is electrically connected to the processor 420 , and the memory 430 is used to store program codes required for the processor 420 to run.

[0077] Optionally, the memory 430 may include a volatile memory (Volatile Memory), such as a random access memory (Random Access Memory, RAM); the memory 430 may also include a non-volatile memory (NVM), such as a read-only memory (Read-Only Memory, ROM), a flash memory (Flash Memory, FM), a hard disk drive (Hard Disk Drive, HDD) or a solid-state drive (SSD). The memory 430 may also include a combination of the above-mentioned types of memory 430.

[0078] Mentioning "embodiment" and "implementation method" in this application means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present application. The appearance of the phrases in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described in this application can be combined with other embodiments. In addition, it should also be understood that the features, structures or characteristics described in the various embodiments of the present application can be arbitrarily combined to form another embodiment that does not deviate from the spirit and scope of the technical solution of the present application, provided that there is no contradiction between them.

[0079] Finally, it should be noted that the above implementation modes are only used to illustrate the technical solution of the present application and are not intended to limit it. Although the present application has been described in detail with reference to the above preferred implementation modes, a person of ordinary skill in the art should understand that the technical solution of the present application may be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present application.

Claims

1. An injection mold, characterized in that: The injection mold comprises: A first sub-mold and a second sub-mold, wherein the first sub-mold and the second sub-mold enclose a glue injection cavity; a first positioning mechanism, the first positioning mechanism comprising a first positioning member, the first positioning member being passed through the first sub-mold and partially protruding from a surface of the first sub-mold facing the glue injection cavity, the first positioning member being used to install a nut disposed in the glue injection cavity, and the length of the first positioning member protruding from the surface of the first sub-mold facing the glue injection cavity being adjustable, a side of the first positioning member facing away from the first sub-mold being flush with a side of the nut facing away from the first sub-mold, and a bottom wall of the glue injection cavity close to the first sub-mold being flush with a side of the nut close to the first sub-mold; and a second positioning mechanism, the second positioning mechanism comprising a second positioning piece, the second positioning piece being passed through the second sub-mold and protruding from a surface of the second sub-mold facing the injection cavity, the second positioning piece abutting against the nut to prevent the nut from moving in the extension direction of the first positioning piece; The first positioning mechanism also includes a locking component, the locking component includes a bite piece and a fastener, the bite piece is arranged on a side of the first sub-mold away from the second sub-mold, and is used to mesh with the first positioning piece to limit the movement of the first positioning piece along the first direction, the fastener is used to fix the bite piece to the first sub-mold, the bite piece has a first position and a second position relative to the first sub-mold, the first position and the second position are arranged along the second direction, when the bite piece is in the first position, the bite piece is meshed and locked with the first positioning piece to limit the movement of the first positioning piece along the first direction, when the bite piece is in the second position, the bite piece is meshed and unlocked with the first positioning piece, so that the first positioning piece can move along the first direction to adjust the length of the first positioning piece protruding from the surface of the first sub-mold facing the injection cavity; wherein, the first direction is the arrangement direction of the second sub-mold and the first sub-mold, and the first direction intersects with the second direction; The second positioning mechanism further includes a driving motor, a screw and a slider, wherein the power output shaft of the driving motor is connected to the screw, the screw extends along a first direction, the screw sleeve is provided with the slider and is threadedly connected to the slider, the slider is connected to the second positioning member, and when the driving motor is turned on, the driving slider drives the second positioning member to move toward or away from the second sub-mold; The first sub-mold has a through hole, and the through hole extends along the first direction; the first positioning member includes a penetration portion, a threaded portion and a bite portion which are connected and arranged along the first direction; the penetration portion is closer to the second sub-mold than the bite portion, and the penetration portion at least partially protrudes from the surface of the first sub-mold facing the second sub-mold, and is used to penetrate and install the nut, the threaded portion is located in the through hole and is threadedly connected to the first sub-mold, and the bite portion at least partially protrudes from the surface of the first sub-mold away from the second sub-mold, and is used to mesh with the bite portion to limit the relative position of the first positioning member and the first sub-mold; the through hole includes The invention comprises a first sub-hole and a second sub-hole which are arranged along a first direction and are interconnected, the first sub-hole passes through a surface of the first sub-mold facing the second sub-mold, the second sub-hole passes through a surface of the first sub-mold facing away from the second sub-mold, the penetration portion is arranged in the first sub-hole, the threaded portion and the bite portion are arranged in the second sub-hole, the radial dimension of the first sub-hole is smaller than the radial dimension of the second sub-hole, the radial dimension of the penetration portion is smaller than the radial dimension of the threaded portion, and the bottom wall of the second sub-hole is used to limit the threaded portion to limit the maximum length of the first positioning member protruding from the surface of the first sub-mold facing the second sub-mold.

2. The injection mold according to claim 1, characterized in that: The through hole has an internal thread, the threaded portion has an external thread, and the internal thread is threadedly connected to the external thread.

3. The injection mold according to claim 1 or 2, characterized in that: The nut has a supporting surface. When the nut is set in the injection cavity, the supporting surface is the surface of the nut facing away from the first sub-mold. The second positioning piece supports the supporting surface. The ratio α of the contact area between the second positioning piece and the supporting surface to the area of ​​the supporting surface is in the range of: 0.2≤α≤0.

6.

4. The injection mold according to claim 3, characterized in that: The nut has a through hole for passing the first positioning member, and the cross-section of the second positioning member along the second direction is arc-shaped, the curvature radius of the arc is greater than the radius of the through hole, and the curvature radius of the arc is less than half of the outer diameter of the nut.

5. The injection mold according to claim 4, characterized in that: A ratio β of the arc length of the arc to the inner circumference of the nut satisfies the range: 0.25≤β≤0.

5.

6. An electronic device, characterized in that: The electronic device comprises: A shell member, wherein the shell member is made by the injection mold according to any one of claims 1 to 5, and the shell member has a receiving cavity; and A processor is disposed in the receiving cavity and is used for processing data.

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