Injection molding mold for earphone hanger structure and device thereof

Abstract

The utility model provides an injection molding mold for an earphone hanger structure and a device thereof. One end of the first glue injection channel and one end of the second glue injection channel are both communicated with the glue injection piece, a hard glue positioning area is formed at one end of the first front mold piece, the other end of the first glue injection channel is communicated with the hard glue positioning area, a first soft glue forming groove is formed at one end of the second front mold piece, and the other end of the second glue injection channel is communicated with the first soft glue forming groove. The other end of the first rear module and the other end of the second rear module are both mounted on the rotary moving platform, so that one end of the first front module is movably connected with one end of the first rear module or one end of the second rear module, and one end of the second front module is movably connected with one end of the first rear module or one end of the second rear module. One end of the damping piece is movably clamped in the first damping limiting clamping groove or the second damping limiting clamping groove, and the other end of the ejector pin is used for ejecting out objects in the hard rubber positioning area.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the field of injection molding, in particular to an injection molding mold for ear-hanging structure of earphone and device thereof. BACKGROUND

[0002] The current soft gel product improves the mechanical properties of the finished product by hard gel in the middle package, so as to meet the application environment requirements, such as the ear-hanging structure of earphone. Such products generally adopt in-mold injection molding, by placing the hard gel part in the cavity of the mold, then injecting the glue into the cavity, and the glue cools to form a soft gel layer covering the hard gel part.

[0003] However, such products are generally injection molded at one time, but since the hard gel part is placed in the cavity, it cannot be positioned in suspension, so it cannot ensure that the hard gel part is in the center area after molding, that is, the hard gel part is prone to eccentricity after molding, resulting in a low yield of the product. CONTENT OF THE UTILITY MODEL

[0004] The purpose of the present disclosure is to overcome the deficiencies in the prior art, and to provide an injection molding mold for ear-hanging structure of earphone and device thereof, which can ensure that the hard gel part is in the center area.

[0005] The purpose of the present disclosure is achieved by the following technical solutions:

[0006] An injection molding mold for ear-hanging structure of earphone, comprising:

[0007] A front mold assembly, the front mold assembly comprises a first front mold piece and a second front mold piece, the first front mold piece is formed with a first glue injection channel, the second front mold piece is formed with a second glue injection channel, one end of the first glue injection channel and one end of the second glue injection channel are in communication with the glue injection piece, one end of the first front mold piece is formed with a hard gel positioning area, the other end of the first glue injection channel is in communication with the hard gel positioning area, one end of the second front mold piece is formed with a first soft gel molding groove, the other end of the second glue injection channel is in communication with the first soft gel molding groove;

[0008] A rear mold assembly, the rear mold assembly comprises a first rear mold piece and a second rear mold piece, one end of the first rear mold piece is formed with a second soft gel molding groove and a first damping limiting slot, one end of the second rear mold piece is formed with a third soft gel molding groove and a second damping limiting slot, the other end of the first rear mold piece and the other end of the second rear mold piece are both installed on a rotary moving platform, so that one end of the first front mold piece is movably connected with one end of the first rear mold piece or one end of the second rear mold piece, one end of the second front mold piece is movably connected with one end of the first rear mold piece or one end of the second rear mold piece;

[0009] The inverted top assembly comprises a top pin fixing plate, a damping member and a top pin, the top pin fixing plate is arranged in the first front mold piece, one end of the damping member and one end of the top pin are arranged on one side of the top pin fixing plate, one end of the damping member is movably clamped in the first damping limiting clamping groove or the second damping limiting clamping groove, and the other end of the top pin is used for ejecting the object in the hard rubber positioning area.

[0010] In one of the embodiments, the other end of the first front mold piece is provided with a first glue injection funnel, the first front mold piece is provided with a first glue injection runner, the bottom of the hard rubber positioning area is provided with a first glue inlet, the glue inlet end of the first glue injection funnel is communicated with the glue outlet end of the glue injection piece, the glue outlet end of the first glue injection funnel is communicated with the glue inlet end of the first glue injection runner, the glue outlet end of the first glue injection runner is communicated with the first glue inlet, and the first glue injection funnel, the first glue injection runner and the first glue inlet jointly form the first glue injection channel.

[0011] In one of the embodiments, the other end of the second front mold piece is provided with a second glue injection funnel, the second front mold piece is provided with a second glue injection runner, the bottom of the first soft rubber forming groove is provided with a second glue inlet, the glue inlet end of the second glue injection funnel is communicated with the glue outlet end of the glue injection piece, the glue outlet end of the second glue injection funnel is communicated with the glue inlet end of the second glue injection runner, the glue outlet end of the second glue injection runner is communicated with the second glue inlet, and the second glue injection funnel, the second glue injection runner and the second glue inlet jointly form the second glue injection channel.

[0012] In one of the embodiments, the first front mold piece is provided with a limiting movable cavity, and the top pin fixing plate is arranged in the limiting movable cavity.

[0013] In one of the embodiments, the number of the hard rubber positioning areas, the first soft rubber forming groove, the second soft rubber forming groove and the third soft rubber forming groove is consistent and multiple.

[0014] The number of the top pins is multiple.

[0015] The bottom of each hard rubber positioning area is provided with multiple top pin penetrating openings, and the other end of each top pin is movably penetrated in the corresponding top pin penetrating opening.

[0016] In one of the embodiments, the number of the first damping limiting clamping groove and the second damping limiting clamping groove is consistent and multiple.

[0017] The number of the damping members is multiple, one end of each of the multiple damping members is fixed on the needle fixing plate, and the other end of each of the damping members is used for movably clamping in the corresponding first damping limiting clamping groove or the corresponding second damping limiting clamping groove.

[0018] In one of the embodiments, the number of the first glue inlets and the glue outlet ends of the first glue injection runners is consistent and multiple, and each of the glue outlet ends of the first glue injection runners is communicated with the corresponding first glue inlet.

[0019] The number of the second glue inlets and the glue outlet ends of the second glue injection runners is consistent and multiple, and each of the glue outlet ends of the second glue injection runners is communicated with the corresponding second glue inlet.

[0020] In one of the embodiments, the injection molding mold further comprises a cooling assembly, the cooling assembly comprises a first cooling liquid runner, a second cooling liquid runner, a third cooling liquid runner and a fourth cooling liquid runner, the first cooling liquid runner is arranged in the first front mold piece, the second cooling liquid runner is arranged in the second front mold piece, the third cooling liquid runner is arranged in the first rear mold piece, and the fourth cooling liquid runner is arranged in the second rear mold piece.

[0021] In one of the embodiments, the first front mold piece is provided with a first cooling liquid inlet and a first cooling liquid outlet, the liquid inlet end of the first cooling liquid runner is communicated with the first cooling liquid inlet, the liquid outlet end of the first cooling liquid runner is communicated with the first cooling liquid outlet, and the first cooling liquid inlet and the first cooling liquid outlet are both used for being communicated with a cooling liquid circulating assembly.

[0022] In one of the embodiments, the second front mold piece is provided with a second cooling liquid inlet and a second cooling liquid outlet, the liquid inlet end of the second cooling liquid runner is communicated with the second cooling liquid inlet, the liquid outlet end of the second cooling liquid runner is communicated with the second cooling liquid outlet, and the second cooling liquid inlet and the second cooling liquid outlet are both used for being communicated with the cooling liquid circulating assembly.

[0023] In one of the embodiments, the first rear mold piece is provided with a third cooling liquid inlet and a third cooling liquid outlet, the liquid inlet end of the third cooling liquid runner is communicated with the third cooling liquid inlet, the liquid outlet end of the third cooling liquid runner is communicated with the third cooling liquid outlet, and the third cooling liquid inlet and the third cooling liquid outlet are both used for being communicated with the cooling liquid circulating assembly.

[0024] In one of the embodiments, the second back mold piece is provided with a fourth cooling liquid inlet and a fourth cooling liquid outlet, the liquid inlet end of the fourth cooling liquid flow channel piece is communicated with the fourth cooling liquid inlet, the liquid outlet end of the fourth cooling liquid flow channel piece is communicated with the fourth cooling liquid outlet, and the fourth cooling liquid inlet and the fourth cooling liquid outlet are both used for being communicated with the cooling liquid circulating assembly.

[0025] An injection molding device for the earphone hanging ear structure, comprising a glue injection part, a rotating moving platform and the injection molding mold for the earphone hanging ear structure according to any one of the embodiments, the glue injection part is communicated with one end of the first glue injection channel and one end of the second glue injection channel respectively, and the other end of the first back mold piece and the other end of the second back mold piece are both installed on the rotating moving platform.

[0026] Compared with the prior art, the present disclosure has at least the following advantages:

[0027] 1. The hard glue part is provided with a first hard glue positioning area, the rotating moving platform is driven to make the first front mold piece and the first back mold piece or the second back mold piece movably connected, the first hard glue positioning area is communicated with the second soft glue forming groove or the third soft glue forming groove, the glue liquid is input from the first glue injection channel to the second soft glue forming groove or the third soft glue forming groove through the glue injection part, one side of the hard glue part is formed with a layer of soft glue layer to form a semi-finished product, and thus the center positioning effect of the hard glue part is realized.

[0028] 2. The first front mold piece and the first back mold piece or the second back mold piece are operated by driving the rotating moving platform to open the mold, that is, the first front mold piece and the first back mold piece or the second back mold piece are separated, since the other end of the damping piece is clamped in the first damping limiting clamping groove or the second damping limiting clamping groove, when the first front mold piece and the first back mold piece or the second back mold piece are separated, the other end of the damping piece will move in the direction of separation of the first back mold piece or the second back mold piece according to inertia, and one end of the damping piece and one end of the ejector pin are both fixed on the ejector pin fixed plate, the ejector pin fixed plate is driven to move in the direction of separation of the first back mold piece or the second back mold piece in the first front mold piece, so that the ejector pin can eject the semi-finished product into the second soft glue forming groove or the third soft glue forming groove, and thus the semi-finished product can be separated from the hard glue positioning area, and the transfer operation of the semi-finished product is realized.

[0029] 3, the rotation of the rotating moving platform is driven to operate, and the rotating moving platform is driven to make the second front mold piece and the first rear mold piece or the second rear mold piece movably connected, so that the first soft glue forming groove and the second soft glue forming groove or the third soft glue forming groove are communicated, and the semi-finished product is limited in the second soft glue forming groove or the second soft glue forming groove, and then the glue liquid is input into the first soft glue forming groove from the second glue injection channel through the glue injection piece, so that another side of the hard glue part is formed with another layer of soft glue layer to form a finished product, so that the hard glue part of the finished product can be ensured to be in the center area, so as to avoid the eccentricity of the hard glue part after forming, and the yield of the earphone hanging structure is improved. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present disclosure, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0031] Figure 1 It is an embodiment of the structure schematic diagram of the injection molding mold for the earphone hanging structure when combined;

[0032] Figure 2 It is Figure 1 It is a structure schematic diagram of the injection molding mold for the earphone hanging structure when separated;

[0033] Figure 3 It is Figure 2 It is a structure schematic diagram of the first front mold piece in the injection molding mold for the earphone hanging structure;

[0034] Figure 4 It is Figure 3 It is a partial enlarged schematic diagram of the injection molding mold for the earphone hanging structure;

[0035] Figure 5 It is Figure 3 It is a partial structure schematic diagram of the injection molding mold for the earphone hanging structure;

[0036] Figure 6 It is Figure 5 It is a partial structure schematic diagram of the injection molding mold for the earphone hanging structure;

[0037] Figure 7 It is Figure 5 It is a partial structure schematic diagram of the injection molding mold for the earphone hanging structure;

[0038] Figure 8 It is Figure 7The diagram shows a partial structural schematic of the injection molding mold used for the ear hook structure of headphones.

[0039] Figure 9 for Figure 2 The diagram shows the structure of the second front mold in the injection molding die used for the ear hook structure of an earphone.

[0040] Figure 10 for Figure 9 The diagram shows a partial structural schematic of the injection molding mold used for the ear hook structure of headphones.

[0041] Figure 11 for Figure 2 The diagram shows the structure of the first rear mold part in the injection molding die used for the ear hook structure of an earphone.

[0042] Figure 12 for Figure 11 The diagram shows a partial structural schematic of the injection molding mold used for the ear hook structure of headphones.

[0043] Figure 13 for Figure 2 The diagram shows the structure of the second rear mold in the injection molding die used for the ear hook structure of an earphone.

[0044] Figure 14 for Figure 13 The diagram shows a partial structural schematic of the injection molding mold used for the ear hook structure of headphones. Detailed Implementation

[0045] To facilitate understanding of this disclosure, a more complete description will be given below with reference to the accompanying drawings, which illustrate preferred embodiments of the present disclosure. However, this disclosure can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure.

[0046] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0047] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used in the description of the disclosure herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0048] Referring to Figures 1 to 14 In order to better understand the injection molding mold 10 for earphone ear-hanging structure of the present disclosure, the injection molding mold 10 for earphone ear-hanging structure is further explained as follows:

[0049] The injection molding mold 10 for earphone ear-hanging structure of an embodiment comprises a front mold assembly 100, a rear mold assembly 200 and an inverted ejector assembly 300. The front mold assembly 100 comprises a first front mold piece 110 and a second front mold piece 120, the first front mold piece 110 is formed with a first glue injection channel 1101, the second front mold piece 120 is formed with a second glue injection channel 1201, one end of the first glue injection channel 1101 and one end of the second glue injection channel 1201 are in communication with a glue injection piece (not shown in the figure), one end of the first front mold piece 110 is formed with a hard glue positioning area 1102, the other end of the first glue injection channel 1101 is in communication with the hard glue positioning area 1102, one end of the second front mold piece 120 is formed with a first soft glue forming groove 1202, the other end of the second glue injection channel 1201 is in communication with the first soft glue forming groove 1202. The rear mold assembly 200 comprises a first rear mold piece 210 and a second rear mold piece 220, one end of the first rear mold piece 210 is formed with a second soft glue forming groove 2101 and a first damping limiting clamping groove 2102, one end of the second rear mold piece 220 is formed with a third soft glue forming groove 2201 and a second damping limiting clamping groove 2202, the other end of the first rear mold piece 210 and the other end of the second rear mold piece 220 are both installed on a rotary moving platform (not shown in the figure), so that one end of the first front mold piece 110 is movably connected with one end of the first rear mold piece 210 or one end of the second rear mold piece 220, and one end of the second front mold piece 120 is movably connected with one end of the first rear mold piece 210 or one end of the second rear mold piece 220. The inverted ejector assembly 300 comprises a ejector pin fixing plate 310, a damping piece 320 and an ejector pin 330, the ejector pin fixing plate 310 is arranged in the first front mold piece 110, one end of the damping piece 320 and one end of the ejector pin 330 are both installed on one side of the ejector pin fixing plate 310, one end of the damping piece 320 is movably clamped in the first damping limiting clamping groove 2102 or the second damping limiting clamping groove 2202, and the other end of the ejector pin 330 is used to eject the object in the hard glue positioning area 1102.

[0050] In this embodiment, a first hard plastic positioning area 1102 is first set in the hard plastic part. The rotating moving platform is driven to make the first front mold 110 movably connected with the first rear mold 210 or the second rear mold 220, so that the first hard plastic positioning area 1102 is connected with the second soft plastic molding groove 2101 or the third soft plastic molding groove 2201. Then, the glue is injected into the second soft plastic molding groove 2101 or the third soft plastic molding groove 2201 through the glue injection component, so that one side of the hard plastic part is formed with a layer of soft plastic to form a semi-finished product, thus achieving the center positioning effect of the hard plastic part.

[0051] Furthermore, by driving the rotary moving platform to perform a mold opening operation on the first front mold 110 and the first rear mold 210 or the second rear mold 220, that is, to separate the first front mold 110 from the first rear mold 210 or the second rear mold 220, since the other end of the damping member 320 is engaged with the first damping limiting groove 2102 or the second damping limiting groove 2202, when the first front mold 110 is separated from the first rear mold 210 or the second rear mold 220, the other end of the damping member 320 will follow the direction of separation of the first rear mold 210 or the second rear mold 220 according to inertia (e.g., ...). Figure 1 The arrow in the image moves in the direction of A), and one end of the damping element 320 and one end of the ejector pin 330 are fixed on the ejector pin fixing plate 310. This causes the ejector pin fixing plate 310 to move within the first front mold 110 in the direction of separation from the first rear mold 210 or the second rear mold 220, so that the ejector pin 330 can eject the semi-finished product into the second soft rubber molding groove 2101 or the third soft rubber molding groove 2201. This allows the semi-finished product to be separated from the hard rubber positioning area 1102, thus realizing the transfer operation of the semi-finished product.

[0052] Furthermore, by driving the rotating moving platform to rotate, the second front mold 120 is movably connected to the first rear mold 210 or the second rear mold 220, so that the first soft rubber molding groove 1202 is connected to the second soft rubber molding groove 2101 or the third soft rubber molding groove 2201. The semi-finished product is confined in the second soft rubber molding groove 2101. Then, the glue is injected into the first soft rubber molding groove 1202 through the glue injection component through the second glue injection channel 1201, so that another layer of soft rubber is formed on the other side of the hard rubber part to form the finished product. This can ensure that the hard rubber part of the finished product is in the central area, thereby avoiding the occurrence of eccentricity after the hard rubber part is formed, and improving the yield of the earphone ear hook structure.

[0053] It should be noted that, since the damping member 320 is inserted into the first damping limiting clamping groove 2102 or the second damping limiting clamping groove 2202, when the first front mold piece 110 is separated from the first rear mold piece 210 or the second rear mold piece 220, the damping member 320 will generate resistance to resist the force of the damping member 320 from the first damping limiting clamping groove 2102 or the second damping limiting clamping groove 2202, so that the damping member 320 will move in the direction of separation (such as the arrow direction A in FIG. 11) of the first rear mold piece 210 or the second rear mold piece 220, so as to achieve the effect that the ejector pin 330 ejects the article in the hard rubber positioning area 1102. With the increase of the separation force, the damping member 320 will still be separated from the first damping limiting clamping groove 2102 or the second damping limiting clamping groove 2202, so as to achieve the demolding operation. Figure 1

[0054] As shown in FIG. 11, in one of the embodiments, the other end of the first front mold piece 110 is provided with a first glue injection funnel 1110, the first front mold piece 110 is provided with a first glue injection runner 1120, and the bottom of the hard rubber positioning area 1102 is provided with a first glue inlet 1103. The glue inlet end of the first glue injection funnel 1110 is in communication with the glue outlet end of the glue injection member, the glue outlet end of the first glue injection funnel 1110 is in communication with the glue inlet end of the first glue injection runner 1120, the glue outlet end of the first glue injection runner 1120 is in communication with the first glue inlet 1103, and the first glue injection funnel 1110, the first glue injection runner 1120 and the first glue inlet 1103 jointly form a first glue injection channel 1101. It can be understood that the glue injection member injects the glue into the first glue injection funnel 1110, and then the glue is delivered to the first glue inlet 1103 by the first glue injection runner 1120, so that the glue can be filled in the second soft rubber forming groove 2101 or the third soft rubber forming groove 2201. Figure 5 As shown in FIG. 11, in one of the embodiments, the other end of the first front mold piece 110 is provided with a first glue injection funnel 1110, the first front mold piece 110 is provided with a first glue injection runner 1120, and the bottom of the hard rubber positioning area 1102 is provided with a first glue inlet 1103. The glue inlet end of the first glue injection funnel 1110 is in communication with the glue outlet end of the glue injection member, the glue outlet end of the first glue injection funnel 1110 is in communication with the glue inlet end of the first glue injection runner 1120, the glue outlet end of the first glue injection runner 1120 is in communication with the first glue inlet 1103, and the first glue injection funnel 1110, the first glue injection runner 1120 and the first glue inlet 1103 jointly form a first glue injection channel 1101. It can be understood that the glue injection member injects the glue into the first glue injection funnel 1110, and then the glue is delivered to the first glue inlet 1103 by the first glue injection runner 1120, so that the glue can be filled in the second soft rubber forming groove 2101 or the third soft rubber forming groove 2201.

[0055] Figure 10 As shown in FIG. 11, in one of the embodiments, the other end of the first front mold piece 110 is provided with a first glue injection funnel 1110, the first front mold piece 110 is provided with a first glue injection runner 1120, and the bottom of the hard rubber positioning area 1102 is provided with a first glue inlet 1103. The glue inlet end of the first glue injection funnel 1110 is in communication with the glue outlet end of the glue injection member, the glue outlet end of the first glue injection funnel 1110 is in communication with the glue inlet end of the first glue injection runner 1120, the glue outlet end of the first glue injection runner 1120 is in communication with the first glue inlet 1103, and the first glue injection funnel 1110, the first glue injection runner 1120 and the first glue inlet 1103 jointly form a first glue injection channel 1101. It can be understood that the glue injection member injects the glue into the first glue injection funnel 1110, and then the glue is delivered to the first glue inlet 1103 by the first glue injection runner 1120, so that the glue can be filled in the second soft rubber forming groove 2101 or the third soft rubber forming groove 2201.

[0056] As shown in FIG. 11, in one of the embodiments, the other end of the first front mold piece 110 is provided with a first glue injection funnel 1110, the first front mold piece 110 is provided with a first glue injection runner 1120, and the bottom of the hard rubber positioning area 1102 is provided with a first glue inlet 1103. The glue inlet end of the first glue injection funnel 1110 is in communication with the glue outlet end of the glue injection member, the glue outlet end of the first glue injection funnel 1110 is in communication with the glue inlet end of the first glue injection runner 1120, the glue outlet end of the first glue injection runner 1120 is in communication with the first glue inlet 1103, and the first glue injection funnel 1110, the first glue injection runner 1120 and the first glue inlet 1103 jointly form a first glue injection channel 1101. It can be understood that the glue injection member injects the glue into the first glue injection funnel 1110, and then the glue is delivered to the first glue inlet 1103 by the first glue injection runner 1120, so that the glue can be filled in the second soft rubber forming groove 2101 or the third soft rubber forming groove 2201.​​Figure 5 , Figure 6 and Figure 8 As shown, in one embodiment, a limiting movable cavity 1104 is formed in the first front module 110, and the ejector pin fixing plate 310 is disposed in the limiting movable cavity 1104. It can be understood that by setting the limiting movable cavity 1104, the position of the ejector pin fixing plate 310 is restricted within the limiting movable cavity 1104, while providing space for the ejector pin fixing plate 310 to move, so as to drive the ejector pin 330 to push out the semi-finished product in the hard plastic positioning area 1102, without waiting for the semi-finished product to cool down and then manually remove it, thereby improving the production efficiency of the earphone hook structure.

[0057] like Figures 1 to 14 As shown, in one embodiment, the number of hard rubber positioning areas 1102, first soft rubber molding grooves 1202, second soft rubber molding grooves 2101, and third soft rubber molding grooves 2201 is the same, and there are multiple of each. The number of ejector pins 330 is also multiple. Each hard rubber positioning area 1102 has multiple ejector pin insertion holes 1105 at its bottom, and the other end of each ejector pin 330 is movably inserted into the corresponding ejector pin insertion hole 1105. It can be understood that the number of hard rubber positioning areas 1102, first soft rubber molding grooves 1202, second soft rubber molding grooves 2101, and third soft rubber molding grooves 2201 is the same, and there are multiple of each, to achieve mass production of the earphone hook structure and further improve the production efficiency of the earphone hook structure. Furthermore, there are multiple ejector pins 330, which simultaneously eject the semi-finished product in the hard rubber positioning area 1102, ensuring that the semi-finished product can accurately fall into the second soft rubber molding groove 2101 or the third soft rubber molding groove 2201. At the same time, the other end of the multiple ejector pins 330 acts on the other side of the hard rubber part, which can avoid the ejector pins 330 leaving needle marks on the soft rubber layer, ensuring that the earphone hook structure has a more perfect appearance.

[0058] like Figure 8 , Figure 11 and Figure 13 As shown, in one embodiment, the number of first damping limiting slots 2102 and second damping limiting slots 2202 is the same, and there are multiple of each. There are multiple damping elements 320, one end of each damping element 320 is fixed to the ejector pin fixing plate 310, and the other end of each damping element 320 is used to movably engage with the corresponding first damping limiting slot 2102 or the corresponding second damping limiting slot 2202. It can be understood that by setting multiple damping elements 320, the connection stability between the first front mold part 110 and the first rear mold part 210 or the second rear mold part 220 can be ensured during injection molding. Furthermore, during mold opening, the multiple damping elements 320, due to inertia, can drive the ejector pin fixing plate 310 to move away from the first rear mold part 210 or the second rear mold part 220 (e.g., ...). Figure 1The arrow direction A in the figure moves to ensure the consistency of the movement of the ejector pin fixing plate 310, improve the ejection accuracy of the ejector pin 330, and thus ensure that the semi-finished products in the plurality of hard glue positioning areas 1102 are simultaneously demolded into the corresponding second soft glue forming grooves 2101 or the corresponding third soft glue forming grooves 2201, thereby improving the production efficiency and yield of the earphone hanging mechanism.

[0059] As shown in Figure 3 , Figure 4 and Figure 9 , in one embodiment, the number of the first glue inlets 1103 and the glue outlet ends of the first glue injection runners 1120 is consistent and multiple, and each glue outlet end of the first glue injection runner 1120 is in communication with a corresponding first glue inlet. The number of the second glue inlets 1203 and the glue outlet ends of the second glue injection runners 1220 is consistent and multiple, and each glue outlet end of the second glue injection runner 1220 is in communication with a corresponding second glue inlet 1203. It can be understood that since the number of the hard glue positioning areas 1102 is multiple, the number of the first glue inlets 1103 needs to match the number of the hard glue positioning areas 1102, which is also multiple, and the first glue injection runner 1120 will be divided into multiple glue outlet ends to match the multiple first glue inlets 1103. Similarly, since the number of the first soft glue forming grooves 1202 is multiple, the number of the second glue inlets 1203 needs to match the number of the first soft glue forming grooves 1202, which is also multiple, and the second glue injection runner 1220 will be divided into multiple glue outlet ends to match the multiple second glue inlets 1203, achieving the effect of batch production of the earphone hanging mechanism and improving the production efficiency of the earphone hanging mechanism.

[0060] As shown in Figures 2 to 14 , in one embodiment, the injection molding mold 10 further comprises a cooling assembly 400, the cooling assembly 400 comprising a first cooling liquid runner 410, a second cooling liquid runner 420, a third cooling liquid runner 430, and a fourth cooling liquid runner 440. The first cooling liquid runner 410 is arranged in the first front mold piece 110, the second cooling liquid runner 420 is arranged in the second front mold piece 120, the third cooling liquid runner 430 is arranged in the first rear mold piece 210, and the fourth cooling liquid runner 440 is arranged in the second rear mold piece 220. It can be understood that by arranging the cooling assembly 400 and arranging the corresponding cooling liquid runner in the corresponding mold piece, the glue liquid in the first soft glue forming groove 1202, the second soft glue forming groove 2101, and the third soft glue forming groove 2201 can be solidified faster.

[0061] As shown in Figure 2 , Figure 3 , Figure 5 and Figure 7As shown in the drawings, in one embodiment, the first front mold piece 110 is provided with a first cooling liquid inlet 1106 and a first cooling liquid outlet 1107, the liquid inlet end of the first cooling liquid flow channel piece 410 is in communication with the first cooling liquid inlet 1106, the liquid outlet end of the first cooling liquid flow channel piece 410 is in communication with the first cooling liquid outlet 1107, and the first cooling liquid inlet 1106 and the first cooling liquid outlet 1107 are both used to communicate with a cooling liquid circulation assembly. It can be understood that the cooling liquid is input into the first cooling liquid inlet 1106 by the cooling liquid circulation assembly, flows through the first cooling liquid flow channel piece 410, exchanges heat with the glue liquid in the hard glue positioning area 1102, and then flows back to the cooling liquid circulation assembly from the first cooling liquid outlet 1107 to be re-cooled, so as to realize self-supply of the cooling liquid, shorten the curing time of the glue liquid, and effectively improve the production efficiency of the earphone ear-hanging structure.

[0062] As shown in the drawings, Figure 2 , Figure 9 and Figure 10 As shown in the drawings, in one embodiment, the second front mold piece 120 is provided with a second cooling liquid inlet 1204 and a second cooling liquid outlet 1205, the liquid inlet end of the second cooling liquid flow channel piece 420 is in communication with the second cooling liquid inlet 1204, the liquid outlet end of the second cooling liquid flow channel piece 420 is in communication with the second cooling liquid outlet 1205, and the second cooling liquid inlet 1204 and the second cooling liquid outlet 1205 are both used to communicate with a cooling liquid circulation assembly (not shown in the drawings). It can be understood that the cooling liquid is input into the second cooling liquid inlet 1204 by the cooling liquid circulation assembly, flows through the second cooling liquid flow channel piece 420, exchanges heat with the glue liquid in the first soft glue forming groove 1202, and then flows back to the cooling liquid circulation assembly from the second cooling liquid outlet 1205 to be re-cooled, so as to realize self-supply of the cooling liquid, shorten the curing time of the glue liquid, and effectively improve the production efficiency of the earphone ear-hanging structure.

[0063] As shown in the drawings, Figure 2 and Figure 12As shown in the drawings, in one of the embodiments, the first rear mold piece 210 is provided with a third cooling liquid inlet 2103 and a third cooling liquid outlet 2104, the liquid inlet end of the third cooling liquid flow channel piece 430 is in communication with the third cooling liquid inlet 2103, the liquid outlet end of the third cooling liquid flow channel piece 430 is in communication with the third cooling liquid outlet 2104, and the third cooling liquid inlet 2103 and the third cooling liquid outlet 2104 are both used for communication with the cooling liquid circulating assembly. It can be understood that the cooling liquid is input into the third cooling liquid inlet 2103 by the cooling liquid circulating assembly, flows through the third cooling liquid flow channel piece 430, exchanges heat with the glue liquid in the second soft glue forming groove 2101, and then flows back to the cooling liquid circulating assembly from the third cooling liquid outlet 2104 to be re-cooled, so as to realize self-supply of the cooling liquid, shorten the curing time of the glue liquid, and effectively improve the production efficiency of the earphone ear-hanging structure. Further, in the embodiment, the number of the third cooling liquid inlet 2103, the third cooling liquid outlet 2104 and the third cooling liquid flow channel piece 430 is two.

[0064] As shown in the drawings, Figure 2 and Figure 14 As shown in the drawings, in one of the embodiments, the second rear mold piece 220 is provided with a fourth cooling liquid inlet 2203 and a fourth cooling liquid outlet 2204, the liquid inlet end of the fourth cooling liquid flow channel piece 440 is in communication with the fourth cooling liquid inlet 2203, the liquid outlet end of the fourth cooling liquid flow channel piece 440 is in communication with the fourth cooling liquid outlet 2204, and the fourth cooling liquid inlet 2203 and the fourth cooling liquid outlet 2204 are both used for communication with the cooling liquid circulating assembly. It can be understood that the cooling liquid is input into the fourth cooling liquid inlet 2203 by the cooling liquid circulating assembly, flows through the fourth cooling liquid flow channel piece 440, exchanges heat with the glue liquid in the third soft glue forming groove 2201, and then flows back to the cooling liquid circulating assembly from the fourth cooling liquid outlet 2204 to be re-cooled, so as to realize self-supply of the cooling liquid, shorten the curing time of the glue liquid, and effectively improve the production efficiency of the earphone ear-hanging structure. Further, in the embodiment, the number of the fourth cooling liquid inlet 2203, the fourth cooling liquid outlet 2204 and the fourth cooling liquid flow channel piece 440 is two.

[0065] The present disclosure also provides an injection molding device for an earphone ear-hanging structure, which comprises a glue injection piece, a rotary moving platform and the injection molding mold for an earphone ear-hanging structure according to any one of the embodiments, the glue injection piece is in communication with one end of the first glue injection channel and one end of the second glue injection channel respectively, and the other end of the first rear mold piece and the other end of the second rear mold piece are both installed on the rotary moving platform.

[0066] In the embodiment, the injection molding mold for an earphone ear-hanging structure according to the present disclosure is used for the molding preparation of the earphone ear-hanging structure, which can avoid the eccentricity of the hard glue part and realize batch production, thereby effectively improving the production efficiency and the yield of the earphone ear-hanging structure.

[0067] Compared with the prior art, the present disclosure has at least the following advantages:

[0068] 1. The first hard glue positioning area is arranged in the hard glue part, the rotating moving platform is driven to movably connect the first front mold piece with the first rear mold piece or the second rear mold piece, the first hard glue positioning area is communicated with the second soft glue forming groove or the third soft glue forming groove, the glue liquid is input from the first glue injection channel to the second soft glue forming groove or the third soft glue forming groove through the glue injection piece, and one side of the hard glue part is formed with a soft glue layer to form a semi-finished product, so that the center positioning effect of the hard glue part is realized.

[0069] 2. The first front mold piece and the first rear mold piece or the second rear mold piece are operated by the rotating moving platform, that is, the first front mold piece and the first rear mold piece or the second rear mold piece are separated, one end of the damping piece is clamped in the first damping limiting clamping groove or the second damping limiting clamping groove, and when the first front mold piece and the first rear mold piece or the second rear mold piece are separated, the other end of the damping piece moves in the direction of separation of the first rear mold piece or the second rear mold piece according to inertia, one end of the damping piece and one end of the ejector pin are fixed on the ejector pin fixing plate, the ejector pin fixing plate is driven to move in the direction of separation of the first rear mold piece or the second rear mold piece in the first front mold piece, and the ejector pin can eject the semi-finished product into the second soft glue forming groove or the third soft glue forming groove, so that the semi-finished product is separated from the hard glue positioning area, and the transfer operation of the semi-finished product is realized.

[0070] 3. The rotating moving platform is rotated, the second front mold piece is movably connected with the first rear mold piece or the second rear mold piece by the rotating moving platform, the first soft glue forming groove is communicated with the second soft glue forming groove or the third soft glue forming groove, the semi-finished product is limited in the second soft glue forming groove or the second soft glue forming groove, the glue liquid is input from the second glue injection channel to the first soft glue forming groove through the glue injection piece, and the other side of the hard glue part is formed with another soft glue layer to form a finished product, so that the hard glue part of the finished product is ensured to be in the center area, the eccentricity of the hard glue part after forming is avoided, and the yield of the earphone hanging structure is improved.

[0071] The above-described embodiments only express several embodiments of the present disclosure, and the description is relatively specific and detailed, but it cannot be understood as a limitation on the scope of the disclosed patent. It should be noted that for ordinary skilled persons in the art, several modifications and improvements can be made without departing from the concept of the present disclosure, and these all belong to the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the appended claims.

Claims

1. An injection molding mold for an ear hook structure of an earphone, characterized in that, include: A front mold assembly, comprising a first front mold part and a second front mold part, wherein the first front mold part forms a first injection channel and the second front mold part forms a second injection channel, one end of the first injection channel and one end of the second injection channel are both connected to an injection part, one end of the first front mold part forms a hard plastic positioning area, and the other end of the first injection channel is connected to the hard plastic positioning area, and one end of the second front mold part forms a first soft plastic molding groove, and the other end of the second injection channel is connected to the first soft plastic molding groove; The rear mold assembly includes a first rear mold component and a second rear mold component. One end of the first rear mold component has a second soft rubber molding groove and a first damping limiting groove. One end of the second rear mold component has a third soft rubber molding groove and a second damping limiting groove. The other ends of the first rear mold component and the other ends of the second rear mold component are both mounted on a rotating moving platform, so that one end of the first front mold component is movably connected to one end of the first rear mold component or one end of the second rear mold component, and one end of the second front mold component is movably connected to one end of the first rear mold component or one end of the second rear mold component. An inverted top assembly includes an ejector pin fixing plate, a damping element, and an ejector pin. The ejector pin fixing plate is disposed within the first front mold. One end of the damping element and one end of the ejector pin are both mounted on one side of the ejector pin fixing plate. One end of the damping element is movably engaged in the first damping limiting slot or the second damping limiting slot. The other end of the ejector pin is used to eject the item in the hard plastic positioning area.

2. The injection molding die for the ear hook structure of an earphone according to claim 1, characterized in that, The other end of the first front mold is provided with a first injection funnel, and the first front mold is provided with a first injection channel. The bottom of the hard glue positioning area is provided with a first glue inlet. The glue inlet end of the first injection funnel is connected to the glue outlet end of the injection component. The glue outlet end of the first injection funnel is connected to the glue inlet end of the first injection channel. The glue outlet end of the first injection channel is connected to the first glue inlet. The first injection funnel, the first injection channel, and the first glue inlet together form the first injection channel.

3. The injection molding die for the ear hook structure of an earphone according to claim 2, characterized in that, The other end of the second front mold is provided with a second injection funnel, and the second front mold is provided with a second injection channel. The bottom of the first soft rubber molding groove is provided with a second injection port. The injection end of the second injection funnel is connected to the discharge end of the injection component, the discharge end of the second injection funnel is connected to the injection end of the second injection channel, and the discharge end of the second injection channel is connected to the second injection port. The second injection funnel, the second injection channel, and the second injection port together form the second injection channel.

4. The injection molding die for the ear hook structure of an earphone according to claim 1, characterized in that, The first front mold has a limiting cavity, and the ejector pin fixing plate is disposed in the limiting cavity.

5. The injection molding die for the ear hook structure of an earphone according to claim 3, characterized in that, The number of the hard rubber positioning area, the first soft rubber molding groove, the second soft rubber molding groove and the third soft rubber molding groove are the same and there are multiple of each. The number of the ejector pins is multiple; Each of the hard plastic positioning areas has multiple pin insertion holes at its bottom, and the other end of each pin is movably inserted through the corresponding pin insertion hole.

6. The injection molding die for the ear hook structure of an earphone according to claim 1, characterized in that, The number of the first damping limiting slot and the second damping limiting slot are the same, and there are multiple of each. The number of damping elements is multiple, one end of each damping element is fixed to the ejector pin fixing plate, and the other end of each damping element is used to be movably engaged in the corresponding first damping limiting slot or the corresponding second damping limiting slot.

7. The injection molding die for the ear hook structure of an earphone according to claim 5, characterized in that, The number of the first glue inlet and the number of the glue outlet of the first glue injection channel are the same and there are multiple ones. The glue outlet of each first glue injection channel is connected to the corresponding first glue inlet. The number of the second glue inlet and the number of the glue outlet of the second glue injection channel are the same and there are multiple outlets. Each outlet of the second glue injection channel is connected to the corresponding second glue inlet.

8. The injection molding die for the ear hook structure of an earphone according to claim 1, characterized in that, The injection molding mold further includes a cooling assembly, which includes a first coolant runner, a second coolant runner, a third coolant runner, and a fourth coolant runner. The first coolant runner is disposed in the first front mold, the second coolant runner is disposed in the second front mold, the third coolant runner is disposed in the first rear mold, and the fourth coolant runner is disposed in the second rear mold.

9. The injection molding die for the ear hook structure of an earphone according to claim 8, characterized in that, The first front module has a first coolant inlet and a first coolant outlet. The inlet end of the first coolant flow channel component is connected to the first coolant inlet, and the outlet end of the first coolant flow channel component is connected to the first coolant outlet. Both the first coolant inlet and the first coolant outlet are used to connect to a coolant circulation assembly; and / or, The second front module has a second coolant inlet and a second coolant outlet. The inlet end of the second coolant flow channel component is connected to the second coolant inlet, and the outlet end of the second coolant flow channel component is connected to the second coolant outlet. Both the second coolant inlet and the second coolant outlet are used to connect to the coolant circulation assembly; and / or, The first rear module has a third coolant inlet and a third coolant outlet. The inlet end of the third coolant flow channel component is connected to the third coolant inlet, and the outlet end of the third coolant flow channel component is connected to the third coolant outlet. Both the third coolant inlet and the third coolant outlet are used to connect to the coolant circulation assembly; and / or, The second rear module has a fourth coolant inlet and a fourth coolant outlet. The inlet end of the fourth coolant flow channel component is connected to the fourth coolant inlet, and the outlet end of the fourth coolant flow channel component is connected to the fourth coolant outlet. Both the fourth coolant inlet and the fourth coolant outlet are used to connect to the coolant circulation assembly.

10. An injection molding device for an earphone hook structure, characterized in that, The device includes an injection molding component, a rotary moving platform, and an injection molding mold for an earphone hook structure as described in any one of claims 1-9. The injection molding component is connected to one end of the first injection channel and one end of the second injection channel, and the other end of the first rear mold and the other end of the second rear mold are both mounted on the rotary moving platform.

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