Suspension molding structure of internal component of injection molding mold

By setting an external power supply structure and a magnet assembly in the injection molding mold, the interaction between current and magnetic field is used to suspend the internal components in the cavity, which solves the problem of exposed power cords and memory steel wires in Bluetooth headset neckband products and improves product yield.

CN223777676UActive Publication Date: 2026-01-09HUIZHOU ZHIJING PRECISION TECH CO LTD
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Patent Information

Application Number
CN202520082154.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-14
Publication Date
2026-01-09
Estimated Expiration
2035-01-14

AI Technical Summary

Technical Problem

In existing Bluetooth headset neckband products, the power cord and memory steel wire are easily exposed outside the silicone shell during hydraulic molding, making it impossible to control their position in real time, resulting in a high product defect rate.

Method used

An external power supply structure, a magnet assembly, and a cavity structure are set in the injection molding mold. Through the interaction of current and magnetic field, the conductive internal components are suspended in the cavity and uniformly coated in the molding material. Finally, the finished product is removed.

Benefits of technology

It effectively prevents the skeleton material from being exposed outside the shell after injection molding, improves product yield, and achieves precise position control of the skeleton material.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a suspension molding structure of an internal component of an injection molding mold. The suspension molding structure comprises an external power supply structure, a magnet assembly, a cavity structure and a conductive internal component, the external power supply structure and the magnet assembly are respectively arranged on the periphery of the cavity structure, and the magnet assembly is arranged below the cavity structure; two ends of the conductive inner component are respectively connected with the external power supply structure, the conductive inner component is arranged in the cavity structure, and the conductive inner component is arranged on the adjacent side of the magnet assembly; therefore, the technical problem that after an in-mold injection molding product is subjected to in-mold injection molding, the in-mold injection molding product is exposed out of the silica gel shell due to the fact that the position of a framework material in the in-mold injection molding product cannot be controlled is solved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of in-mold injection molding process, in particular to a kind of suspension forming structure of injection molding mold inner component. BACKGROUND

[0002] The existing Bluetooth headset neck product is mainly composed of the following components: memory wire, power cord, product shape silicone.

[0003] The traditional production method of the aforementioned Bluetooth headset neck product is as follows: mainly using in-mold forming process of oil pressure silicone / solid silicone, specifically: first calculate the silicone dosage of single mold; then put silicone, power cord and memory wire into the preset mold cavity according to the direction and sequence requirements; finally, start the oil pressure machine for in-mold forming processing to complete production.

[0004] For example, Chinese patent CN117382076A discloses an oil pressure forming device for silicone products and its use method, which includes a base provided with a pressure forming component, a transfer component and a blanking component. The transfer component is used to realize the transfer of silicone products. The pressure forming component is used to form silicone and prevent accidental start-up from causing harm to personnel. The blanking component is used to take out the product after pressure forming and cut off the flash waste. The technical solution disclosed in the patent can ensure that the mold is in place and then filled with silicone before forming operation, while protecting the safety of personnel. It realizes the transfer of products, so that the feeding pipe does not interfere with the blanking operation, improves the blanking speed, and can quickly blank the product while cutting off the product flash. The finished product is directly collected and packed without manual operation, which simplifies the operation process and improves the efficiency.

[0005] However, the above-mentioned in-mold oil pressure forming process of silicone product cannot avoid the technical problem of existing Bluetooth headset neck product that power cord and memory wire are exposed during oil pressure forming. Specifically, when using oil pressure silicone forming process to produce existing Bluetooth headset neck product, the state inside the mold cavity after mold closing action cannot be observed or perceived by the operator in real time; therefore, the operator cannot control or adjust the position of power cord and memory wire in real time; resulting in high product defect rate, which mainly manifests in that power cord and memory wire are not in the middle tolerance position of the product, power cord and memory wire will swing in the up and down direction of the product, causing power cord or memory wire in the finished product to be exposed outside the silicone shell.

[0006] Further, the in-mold injection molding is a plastic processing technology which melts solid plastic according to a certain melting point, injects into a mold through the pressure of an injection machine at a certain speed, and solidifies the plastic through water cooling of the mold to obtain a product same as the designed mold cavity. The plastic processing technology is mainly used for the molding processing of thermoplastic plastics, and can also be used for the molding processing of thermosetting plastics.

[0007] Based on this, the in-mold injection molding can be combined with the silicone oil pressure technology to solve the technical problem of exposure of the power cord and memory steel wire of the Bluetooth earphone neck product during oil pressure molding. Practical new type content

[0008] Based on this, it is necessary to provide a suspension molding method and structure of an inner component of an injection molding mold for solving the technical problem of exposure of a skeleton material to a shell in an injection molding process.

[0009] A suspension molding method of an inner component of an injection molding mold, comprising the following steps:

[0010] S1: setting an external power supply structure, a magnet assembly and a cavity structure in the injection molding mold;

[0011] S2: placing a conductive inner component in the cavity structure, and connecting the positive and negative poles of the external power supply structure to the two ends of the conductive inner component, respectively;

[0012] S3: setting the magnet assembly on the adjacent side of the cavity structure, and setting the N pole and the S pole of the magnet assembly on the two sides of the conductive inner component, respectively;

[0013] S4: introducing the current into the conductive inner component by the external power supply structure, and making the current direction in the conductive inner component intersect with the magnetic field direction of the magnet assembly, at this time, the conductive inner component is suspended in the cavity structure;

[0014] S5: injecting a molding material into the cavity structure to make the molding material uniformly cover the periphery of the conductive inner component;

[0015] S6: after the molding material is covered and molded with the conductive inner component, the external power supply structure is powered off and the finished product is taken out from the cavity structure.

[0016] Specifically, the cavity structure is made of a magnetic steel material.

[0017] Specifically, alternating current or direct current is input into the external power supply structure.

[0018] Specifically, when alternating current is introduced into the electrically conductive inner member, the electrically conductive inner member generates vibration in the cavity structure during the injection molding process, causing the injection-molded material such as silicone to gradually solidify or cure from the outside to the inside; during the solidification or curing process, the vibration amplitude of the electrically conductive inner member gradually decreases, and eventually the electrically conductive inner member is centered in the injected molding material.

[0019] Specifically, when the external power supply structure adopts an adjustable constant current power supply to introduce direct current into the electrically conductive inner member, during the injection molding process, the electrically conductive inner member is biased to one side due to the magnetic force generated by the magnet assembly, and then the injection pressure in the cavity structure is adjusted to balance the magnetic force and center the electrically conductive inner member in the injected silicone or other molding material.

[0020] Further, a suspension molding method using the injection molding mold inner member described above, which includes an external power supply structure, a magnet assembly, a cavity structure, and an electrically conductive inner member; the external power supply structure and the magnet assembly are respectively arranged on the periphery of the cavity structure, and the magnet assembly is arranged below the cavity structure; the magnet assembly has a magnet lower assembly seat, a magnet upper packaging cover, and a plurality of magnets; the magnet lower assembly seat and the magnet upper packaging cover are arranged in opposite opening and closing positions, and the plurality of magnets are uniformly distributed between the magnet lower assembly seat and the magnet upper packaging cover; the magnet upper packaging cover is arranged below the cavity structure; the two ends of the electrically conductive inner member are respectively connected to the external power supply structure, and the electrically conductive inner member is arranged in the cavity structure; a plurality of magnets are arranged on both sides of the electrically conductive inner member; the N pole of one of the two oppositely arranged magnets and the S pole of the other magnet are respectively arranged on both sides of the electrically conductive inner member.

[0021] Further, the external power supply structure has an insulating power supply seat body, an insulating power supply cover body, an electrode column, an electrode locking structure, an electrode top end sealing structure, and an electrode bottom end sealing structure.

[0022] Further, the upper part of the insulating support seat body is provided with an insulating power supply cover body, and two electrode columns are movably sleeved in the insulating support seat body; each electrode column is electrically connected to one end of the molding framework structure, and the insulating power supply cover body is arranged on the connection between each electrode column and the molding framework structure; each electrode locking structure is connected to one electrode column, the electrode top end sealing structure is arranged on the two electrode columns after passing through the insulating power supply cover body, and the electrode bottom end sealing structure is arranged at the bottom of the two electrode columns.

[0023] Further, the electrode locking structure has an electrode locking part and an electrode connecting piece; the electrode locking part is movably arranged on the electrode column, and the electrode connecting piece is connected to the electrode locking part and the electrode column.

[0024] Further, the electrode top end sealing structure has a top sealing block, a pressing member and a spring; the top sealing block is arranged on the two electrode columns, the pressing member abuts against the top of the top sealing block after passing through the insulating power cover, and the spring is connected with the pressing member.

[0025] In conclusion, the utility model provides a kind of suspension forming method of injection mould inner member, it is by setting external power supply structure, magnet assembly and cavity structure in injection mould, and make electrically conductive inner member be placed in cavity structure, simultaneously, make the positive and negative pole of external power supply structure be connected with the two ends of electrically conductive inner member, again, magnet assembly is set to the adjacent side of cavity structure, and make, N pole and S pole of magnet assembly are located at the two sides of electrically conductive inner member respectively, and when external power supply structure leads electric current into electrically conductive inner member, and make, the direction of electric current in electrically conductive inner member and the direction of magnetic field of magnet assembly intersect, at this time, electrically conductive inner member is suspended in cavity structure, finally, injection molding material is injected into cavity structure, to make molding material evenly coat in the periphery of electrically conductive inner member, again, after the coating forming of molding material and electrically conductive inner member, make external power supply structure power off and take out finished product from cavity structure.

[0026] In addition, the utility model also provides a kind of suspension forming structure of injection mould inner member, it includes: external power supply structure, magnet assembly, cavity structure and electrically conductive inner member, external power supply structure and magnet assembly are respectively set to the periphery of cavity structure, magnet assembly is set below cavity structure, and magnet assembly has: magnet lower assembly seat, magnet upper encapsulation cover and several magnets, magnet lower assembly seat and magnet upper encapsulation cover are oppositely opened and closed, and several magnets are evenly distributed and set between magnet lower assembly seat and magnet upper encapsulation cover, magnet upper encapsulation cover is set below cavity structure, the two ends of electrically conductive inner member are respectively connected with external power supply structure, electrically conductive inner member is set in cavity structure, and the two sides of electrically conductive inner member are respectively spaced and provided with several magnets, and the N pole of one magnet and the S pole of another magnet are respectively set to the two sides of electrically conductive inner member in every two oppositely arranged magnets.

[0027] Therefore, the technical problem that the skeleton product appears outside the silica gel shell after in-mold injection molding due to the uncontrollable position of the internal skeleton material is eliminated. Therefore, the suspension forming method of injection molding mold inner member solves the technical problem of preventing the skeleton material from being exposed outside the shell in the injection molding process. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 It is a functional structure diagram of the suspension forming method of injection molding mold inner member of the utility model;

[0029] Figure 2It is an explosion structure schematic view of part structure of the suspension forming structure of the inner member of the injection forming mold.

[0030] Figure 3 It is an explosion structure schematic view of another direction part structure of the suspension forming structure of the inner member of the injection forming mold. DETAILED DESCRIPTION

[0031] In order to make the above object, characteristics and advantages of the utility model more apparent, below, specific embodiment of the utility model is explained in detail with the drawings. In the following description, a lot of specific details are set forth in order to fully understand the utility model. But the utility model can be implemented in many other ways different from the description, and the person skilled in the art can make similar improvements without departing from the connotation of the utility model, so the utility model is not limited by the following disclosed specific embodiments.

[0032] In the description of the utility model, it needs to be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0033] In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the utility model, the meaning of "multiple" is at least two, for example, two, three, etc., unless otherwise explicitly specified.

[0034] In the utility model, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and other terms should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship of two elements, unless otherwise explicitly limited. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0035] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0036] It should be noted that when an element is referred to as "fixed to" or "provided on" another element, it can be directly on another element or there can be a middle element. When an element is considered to be "connected" to another element, it can be directly connected to another element or there can be a middle element. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are for illustrative purposes only and are not the only embodiment.

[0037] Please refer to Figure 1 The utility model discloses a kind of suspension forming methods of injection molding mould inner member, comprising the following steps:

[0038] S1: external power supply structure 1, magnet assembly 2 and cavity structure 3 are arranged in injection molding mould.

[0039] S2: electrically conductive inner member 4 is placed in cavity structure 3, and the positive and negative poles of external power supply structure 1 are respectively connected with the two ends of electrically conductive inner member 4.

[0040] S3: magnet assembly 2 is arranged in the adjacent side of cavity structure 3, and the N pole and S pole of magnet assembly 2 are respectively arranged on the two sides of electrically conductive inner member 4.

[0041] S4: external power supply structure 1 introduces current into electrically conductive inner member 4, and the current direction in electrically conductive inner member 4 intersects with the magnetic field direction of magnet assembly 2, at this time, electrically conductive inner member 4 is suspended in cavity structure 3.

[0042] S5: injection molding material is injected into cavity structure 3, so that the molding material is uniformly coated on the periphery of electrically conductive inner member 4.

[0043] S6: after the coating molding of molding material and electrically conductive inner member 4, external power supply structure 1 is powered off, and the finished product is taken out from cavity structure 3.

[0044] Specifically, as Figure 2As shown, in a specific embodiment, a suspension molding structure of an injection molding mold inner member includes: an external power supply structure 1, a magnet assembly 2, a cavity structure 3, and a conductive inner member 4; the external power supply structure 1 and the magnet assembly 2 are respectively arranged on the periphery of the cavity structure 3, the magnet assembly 2 is arranged below the cavity structure 3, and the magnet assembly 2 has: a magnet lower assembly seat 201, a magnet upper packaging cover 202, and a plurality of magnets 203; the magnet lower assembly seat 201 and the magnet upper packaging cover 202 are arranged in opposite opening and closing, and a plurality of magnets 203 are uniformly arranged between the magnet lower assembly seat 201 and the magnet upper packaging cover 202; the magnet upper packaging cover 202 is arranged below the cavity structure 3; both ends of the conductive inner member 4 are respectively connected with the external power supply structure 1, the conductive inner member 4 is arranged in the cavity structure 3, and a plurality of magnets 203 are respectively arranged on both sides of the conductive inner member 4; one of the two oppositely arranged magnets 203 has an N pole and the other has an S pole, which are respectively arranged on both sides of the conductive inner member 4.

[0045] Specifically, please refer to Figure 2 When the current is introduced from one end of the conductive inner member 4 to the other end and then flows back to the external power supply structure 1, the direction of the current I is guided along the conductive inner member 4; at this time, the magnetic field formed by the magnets 203 arranged on both sides of the conductive inner member 4 passes through both sides of the conductive inner member 4, so that the direction of the magnetic induction intensity of the magnetic field formed by the magnet assembly 2 intersects with the flow direction of the current from the conductive inner member 4.

[0046] Therefore, according to the Ampere force formula: F=B*I*L*sinα, where F represents the size of Ampere force, unit: Newton, N; B represents the magnetic induction intensity, unit: Tesla, T, which is used to describe the strength of the magnetic field; I represents the current intensity, unit: Ampere, A, which represents the size of the current; L represents the wire length, unit: meter, m, which represents the length of the wire in the magnetic field; α represents the included angle between the current direction in the wire and the direction of the magnetic induction intensity B, unit: degree, ° or radian, rad.

[0047] Therefore, as Figure 2As shown, when the electric current flows through the electrically conductive inner member 4, the electrically conductive inner member 4 is subjected to the Ampere force which can be opposite to its own gravity in the magnetic field generated by the magnet assembly 2. By controlling the intensity of the electric current flowing through the electrically conductive inner member, the length of the electrically conductive inner member, and the strength of the magnetic force of the magnet 203, the electrically conductive inner member can overcome the gravity and be suspended in the cavity structure 3 when the electric current flows through the electrically conductive inner member.

[0048] Further, in order to meet the process requirements of high pressure and high temperature in the injection molding process, and meanwhile, not to affect the strength of the magnetic induction generated by the magnet assembly 2, the cavity structure 3 can be made of a magnetic permeable steel. The magnetic permeable steel refers to a steel material which allows the magnetic flux to pass through easily. Such a steel material usually has high magnetic permeability and low magnetic resistance, so that the magnetic field can be more effectively propagated inside the material. For example, the magnetic permeable steel can be an aluminum-nickel-cobalt magnetic steel which mainly consists of aluminum, nickel (Ni), cobalt, iron and other trace metal elements. The aluminum-nickel-cobalt magnetic steel has high magnetic energy product and temperature stability, can maintain stable magnetism in a high temperature environment, and has strong corrosion resistance. Alternatively, the magnetic permeable steel can be a neodymium-iron-boron magnetic steel which mainly consists of rare earth element neodymium, iron and boron. Alternatively, the magnetic permeable steel can be a ferrite magnetic steel, a samarium-cobalt magnetic steel or a soft magnetic material, etc.

[0049] Similarly, the structure surrounding the magnet 203 can also be made of the magnetic permeable steel, for example, the magnet lower assembly seat 201 and the magnet upper packaging cover 202, so as to facilitate the magnetic induction generated by the magnet 203 to be transmitted to the periphery of the electrically conductive inner member 4.

[0050] Specifically, in the injection molding process, the material injected into the cavity structure 3 can be silicone, rubber or other high polymer materials, etc.

[0051] Further, the electrically conductive inner member 4 can be introduced with alternating current or direct current, which corresponds to two different molding methods.

[0052] When the electrically conductive inner member 4 is introduced with alternating current, the electrically conductive inner member 4 generates vibration in the cavity structure 3 in the injection molding process, so that the silicone and other injection molding materials gradually mature or solidify from outside to inside. In the process of maturation or solidification, the vibration amplitude of the electrically conductive inner member 4 gradually decreases, and finally the electrically conductive inner member 4 is centered in the injected molding material.

[0053] When the external power supply structure 1 adopts an adjustable constant current power supply, and the conductive inner member 4 is introduced into direct current, in the process of injection molding, the conductive inner member 4 is deviated to one side due to the magnetic force generated by the magnet assembly 2, and then the injection pressure in the cavity structure 3 is adjusted to balance the magnetic force and center the conductive inner member 4 in the injected silicone or other molding material.

[0054] Therefore, whether the conductive inner member 4 is introduced into alternating current or direct current, it can finally meet the requirement of centering in the molding material. Furthermore, it avoids the injection molding process from producing adverse conditions such as exposed skeleton.

[0055] Further, please continue to refer to Figure 3 In a specific embodiment, the external power supply structure 1 has an insulating power supply seat body 101, an insulating power supply cover body 102, an electrode column 103, an electrode locking structure 104, an electrode top end sealing structure 105 and an electrode bottom end sealing structure 106; the insulating power supply cover body 102 is arranged above the insulating support seat body 104, and two electrode columns 103 are movably arranged in the insulating support seat body 104; each electrode column 103 is electrically connected to one end of the molding skeleton structure 2, and the insulating power supply cover body 102 is arranged above the connection between each electrode column 103 and the molding skeleton structure 2; each electrode locking structure 104 is connected to one electrode column 103, the electrode top end sealing structure 105 is arranged above the two electrode columns 103 after passing through the insulating power supply cover body 102, and the electrode bottom end sealing structure 106 is arranged at the bottom of the two electrode columns 103.

[0056] Specifically, the external power supply structure 1 mainly plays a role of connecting the conductive inner member 4 with the external power supply and insulating the conductive connection part from the rest of the injection molding mold. More specifically, generally, the conductive inner member 4 has two ends, and each end is electrically connected to one electrode column 103, one of which is the positive electrode of the external power supply, and the other is the negative electrode; thereby, the conductive inner member 4 and the external power supply form a conductive loop.

[0057] Further, the insulating power supply seat body 101 can pass through the plate structure of the mold and form insulation to allow the electrode column 103 to pass through; the insulating power supply cover body 102 can further insulate and cover the connection between the electrode column 103 and the external injection molding mold.

[0058] Further, after the two electrode columns 103 are electrically connected with the electrically conductive inner member 4, the electrode locking structure 404 can lock and connect the electrically conductive connection of the two; then, the electrode top end sealing structure 405 is used to supplement the insulation isolation of the place. In addition, the bottom of the two electrode columns 103 is the connection part of the power supply drawn out of the injection molding mold, which can be insulated and sealed by the electrode bottom end sealing structure 406, so that the setting range of the insulated power supply base body 101 and the insulated power supply cover body 102 is completely insulated and isolated, so that the external power supply structure 1 and the external mold plate are completely insulated and isolated.

[0059] Further, the electrode locking structure 104 has an electrode locking part 104a and an electrode connecting part 104b; the electrode locking part 104a is movably arranged on the electrode column 103, and the electrode connecting part 104b is connected with the electrode locking part 104a and the electrode column 103 respectively. Specifically, the cable connected between the electrode column 103 and the electrically conductive inner member 4 has one end connected with the electrically conductive inner member 4 and the other end put into the electrode locking part 104a and the electrode column 103, and then the electrode connecting part 104b is used to lock and connect the two.

[0060] Further, the electrode top end sealing structure 105 has a top sealing block 105a, a pressing part 105b and a spring 105c; the top sealing block 105a is arranged on the two electrode columns 103, the pressing part 105b abuts against the top of the top sealing block 105a after passing through the insulated power supply cover body 102, and the spring 105c is connected with the pressing part 105b. Specifically, after the spring 105c is pressed by the external mold plate structure, the elastic force of the spring 105c can be transmitted to the top sealing block 105a through the pressing part 105b, so that the top sealing block 105a covers the two electrode columns 103.

[0061] Further, in a specific embodiment, the electrically conductive inner member 4 has a power line part 401 and a memory steel wire part 402, and the power line part 401 and the memory steel wire part 402 are stacked.

[0062] More specifically, a method for applying the suspension molding structure of the injection molding mold inner member includes the following steps:

[0063] Prepare the first forming mold, the second forming mold, the silicone injection machine, the power transformer, the high-temperature-resistant magnet, the silicone material, the power cord material, the memory steel wire material and other necessary materials in advance;

[0064] S1: first connect the power cord part 401 and the memory steel wire part 402 through the first forming mold to obtain a first product;

[0065] S2: set the cavity structure 3 in the second forming mold and put a first product in the cavity structure 3, so that the N level and the S level of the magnet assembly 2 are located on the two sides of the first product, respectively;

[0066] S3: set the external power supply structure 1 in the second forming mold, and make the external power supply structure 1 insulated from the second forming mold around, and introduce the current from the external power supply structure 1 into the first product;

[0067] S4: adjust the output voltage of the external power supply structure 1 and the injection parameters of the silicone injection machine, so that the first product in the cavity structure 3 is always suspended at a predetermined position;

[0068] S5: start the silicone injection machine to inject the silicone material in the cavity structure 3, so as to obtain a second product.

[0069] Specifically, in the foregoing embodiment, first, the skeleton material of the product to be injected, i.e., the power cord part 401 and the memory steel wire part 402, are connected to each other by using the first forming mold; the connection mode of the two is to connect them with silicone in the product cavity of the first forming mold, and the silicone material can be injected by the silicone injection machine after the first forming mold is closed.

[0070] After that, the cavity structure 3 in the second forming mold is optimized in structure, so that the magnet assembly 2 and the external power supply structure 1 are arranged in the form of electromagnetic floating around the product cavity, the power cord part 401 and the memory steel wire part 402 are electrically connected by using the external power supply structure 1, so that the current in the first product is subjected to the Ampere force in the magnetic field formed by the magnet assembly 2, thereby making the power cord part 401 and the memory steel wire part 402 suspended in the cavity structure 3 of the second forming mold by relying on the Ampere force after being electrified. Finally, the silicone injection machine is used to inject the silicone raw material in the cavity structure of the second forming mold after the mold is closed, and by adjusting the injection pressure, injection speed and other injection parameters of the silicone injection machine, the skeleton material can be controlled within the range of the preset intermediate tolerance value of the product, so as to solve the technical problem that the power cord part 401 or the memory steel wire part 402 is exposed outside the silicone shell after the product is injection molded in the mold.

[0071] In summary, the utility model provides a kind of suspension forming method of injection mould inner component, it is by setting external power supply structure 1, magnet assembly 2 and cavity structure 3 in injection mould;And make electrically conductive inner component 4 be placed in cavity structure 3, simultaneously, make the positive and negative of external power supply structure 1 be connected with the two ends of electrically conductive inner component 4;Again magnet assembly 2 is set in the adjacent side of cavity structure 3, and make, N pole and S pole of magnet assembly 2 are located at the two sides of electrically conductive inner component 4 respectively;When external power supply structure 1 leads current into electrically conductive inner component 4, and make, the direction of current in electrically conductive inner component 4 and the magnetic field direction of magnet assembly 2 intersect, at this time, electrically conductive inner component 4 is suspended in cavity structure 3;Finally, injection molding material is injected into cavity structure 3, to make molding material evenly coat in the periphery of electrically conductive inner component 4;Again after the coating forming of molding material and electrically conductive inner component 4, make external power supply structure 1 power off and take out finished product from cavity structure 3 can be.

[0072] In addition, the utility model further provides a kind of suspension forming structure of injection mould inner component, it includes: external power supply structure 1, magnet assembly 2, cavity structure 3 and electrically conductive inner component 4;The external power supply structure 1 and the magnet assembly 2 are respectively set in the periphery of the cavity structure 3, the magnet assembly 2 is set below the cavity structure 3, the magnet assembly 2 has: magnet lower assembly seat 201, magnet upper encapsulation cover 202 and several magnets 203;The magnet lower assembly seat 201 and the magnet upper encapsulation cover 202 are oppositely opened and closed, several magnets 203 are evenly distributed and set between the magnet lower assembly seat 201 and the magnet upper encapsulation cover 202;The magnet upper encapsulation cover 202 is set below the cavity structure 3;The two ends of electrically conductive inner component 4 are respectively connected with the external power supply structure 1, and the electrically conductive inner component 4 is set in the cavity structure 3, and the two sides of the electrically conductive inner component 4 are respectively spaced and provided with several magnets 203;In every two oppositely arranged magnets 203, the N pole of one magnet 203 and the S pole of another magnet 203 are respectively arranged at the two sides of the electrically conductive inner component 4.

[0073] Therefore, the technical problem that skeleton product appears outside the silica gel shell after in-mold injection molding due to the position of the internal skeleton material cannot be controlled is eliminated.So, the utility model provides a kind of suspension forming method of injection mould inner component solves the technical problem of how to prevent skeleton material from being exposed to the shell in injection molding process.

[0074] Any combination of the technical features in the above-described embodiments can be made, and for the sake of brevity, not all possible combinations are described, however, as long as the combination of the technical features does not exist in contradiction, it shall be considered as within the scope of the present disclosure.

[0075] The above-described embodiments only express several implementation manners of the present application, the description is relatively specific and detailed, but it shall not be understood as a limitation on the scope of the present application patent. It should be pointed out that, for ordinary skilled in the art, under the premise of not departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the protection scope of the present application patent shall be subject to the appended claims.

Claims

1. A suspension-molding structure of an injection-molding-mold inner member, characterized by, It includes: external power supply structure, magnet assembly, cavity structure and electrically conductive inner member; external power supply structure and magnet assembly are respectively arranged at the periphery of the cavity structure, and the magnet assembly is arranged below the cavity structure; both ends of the electrically conductive inner member are connected with the external power supply structure respectively, the electrically conductive inner member is arranged in the cavity structure, and the electrically conductive inner member is arranged at the adjacent side of the magnet assembly.

2. A suspension-molded structure of an injection-molded in-mold component according to claim 1, characterized in that: The magnet assembly has a magnet lower assembly seat, a magnet upper packaging cover and a plurality of magnets.

3. A suspension-molded structure of an injection-molded in-mold component according to claim 2, characterized in that: The magnet lower assembly seat and the magnet upper packaging cover are oppositely opened and closed, and the plurality of magnets are uniformly arranged between the magnet lower assembly seat and the magnet upper packaging cover; the magnet upper packaging cover is arranged below the cavity structure; the N pole of one of the two oppositely arranged magnets and the S pole of the other magnet are arranged on both sides of the electrically conductive inner member respectively.

4. A suspension-molded structure of an injection-molded in-mold component according to claim 3, characterized in that: The external power supply structure has an insulating power supply seat body, an insulating power supply cover body, an electrode column, an electrode locking structure, an electrode top end sealing structure and an electrode bottom end sealing structure.

5. A suspension-molded structure of an injection-molded in-mold component according to claim 4, characterized in that: The upper part of the insulating supporting seat body is provided with the insulating power supply cover body, and the two electrode columns are movably sleeved in the insulating supporting seat body; each electrode column is electrically connected with one end of the shaped framework structure, and the insulating power supply cover body is arranged on the connection between each electrode column and the shaped framework structure.

6. A suspension-molded structure of an injection-molded in-mold component according to claim 5, characterized in that: Each electrode locking structure is connected to one electrode column, the electrode top end sealing structure is arranged on the two electrode columns after passing through the insulating power supply cover body, and the electrode bottom end sealing structure is arranged on the bottom of the two electrode columns.

7. A suspension-molded structure of an injection-molded in-mold component according to claim 6, characterized in that: The electrode locking structure has an electrode locking part and an electrode connecting piece; the electrode locking part is movably arranged on the electrode column, and the electrode connecting piece is connected with the electrode locking part and the electrode column respectively.

8. A suspension-molded structure of an injection-molded in-mold component according to claim 7, characterized in that: The electrode top end sealing structure has a top sealing block, a pressing piece and a spring.

9. A suspension-molded structure of an injection-molded in-mold component according to claim 8, characterized in that: The top sealing block is arranged on the two electrode columns, the pressing piece abuts against the top of the top sealing block after passing through the insulating power supply cover body, and the spring is connected with the pressing piece.

10. A suspension-molded structure of an injection-molded inner member of a mold, according to claim 9, characterized in that: The electrically conductive inner member has a power line part and a memory steel wire part, and the power line part and the memory steel wire part are stacked.

Citation Information

Patent Citations

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