Insert structure for injection molding of metal nut of plastic product

Abstract

The utility model discloses an insert structure for injection molding of a metal nut of a plastic product, which comprises a hollow nut insert, a magnet is mounted in the nut insert, one side surface of the magnet is connected with one end of a nut insert pin, and the other end of the nut insert pin penetrates through the nut insert and is connected with the metal nut. And a magnetic limiting ring is arranged in a gap between the nut insert pin and the nut insert in the nut insert. According to the utility model, the magnetism of the magnet is conducted to the magnetic limiting ring, and when the metal nut made of an iron material is sleeved on the nut insert pin, the magnetic limiting ring can magnetically attract the metal nut, so that the metal nut is prevented from moving on the mold insert pin and falling off in a movable mold closing process; and meanwhile, the situation that a gap is generated on the matching surface of the metal nut and the mold insert pin due to movement of the metal nut on the mold insert pin in the injection molding glue injection process, glue enters the gap during injection molding and flows into the nut or the surface of the nut, and a bolt cannot be screwed in is avoided, so that the stability of the metal nut on the mold insert is improved, and the injection molding yield is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to mould accessory technical field, concretely relates to a plastic product metal nut injection uses insert structure. BACKGROUND

[0002] At present, when metal nut needs to be injected into plastic product, generally, it is placed on the mould insert first, and then injected into plastic product. But the mould with mould insert moves in the process of moving and closing mould, and the metal nut is easy to fall off. In the process of injection and glue injection, the metal nut moves on the mould insert, so that the gap is generated between the two matching surfaces, the glue enters the gap during injection, and flows into the interior or surface of the nut, the bolt cannot be screwed in, resulting in the reduction of injection yield. SUMMARY

[0003] In order to solve the above technical problems, the utility model provides a plastic product metal nut injection uses insert structure.

[0004] In order to achieve the above object, the utility model provides a plastic product metal nut injection uses insert structure, which comprises an insert body installed on an injection mould, the insert body comprises a hollow nut insert, a magnet is installed in the nut insert, one side surface of the magnet is connected with one end of a nut insert pin, the other end of the nut insert pin penetrates the nut insert and is connected with a metal nut, a magnetic flux limiting ring is arranged in the gap between the nut insert pin and the nut insert in the nut insert, and a non-magnetic body is embedded on the side of the magnet away from the nut insert pin in the nut insert.

[0005] Preferably, the magnetic flux limiting ring is arranged on the through port of the nut insert penetrated by the nut insert pin, and the magnetic flux limiting ring is sleeved on the nut insert pin.

[0006] Preferably, an installation hole is formed in the injection mould, and the nut insert is arranged on the installation hole.

[0007] Preferably, the metal nut is sleeved on the nut insert pin, and the material of the metal nut is iron-containing material.

[0008] Preferably, the materials of the nut insert and the nut insert pin are both 304 stainless steel.

[0009] Preferably, the material of the non-magnetic body is aluminum alloy.

[0010] Preferably, the magnet is a neodymium magnet.

[0011] Compared with the prior art, the utility model discloses the beneficial effect is: the utility model discloses the magnet is installed in the nut insert piece, and the magnet one side is connected with the one end of nut insert needle, the other side is connected with the non -magnetic body, improves the connection stability between magnet and insert needle, simultaneously through the end of nut insert needle far away from magnet penetrates nut insert piece, and the gap of nut insert piece inside between nut insert piece and nut insert needle is provided with the magnetic material made of magnetic limit ring, make magnetism of magnet conduction to magnetic limit ring, when the metal nut of iron material is sleeved in nut insert needle, magnetic limit ring can magnetically attract metal nut, thereby avoid the metal nut to fall off from happening in the die insert of moving die process, simultaneously avoid the metal nut to make the gap of both mating surfaces to happen in the die insert of injection molding process, and the glue material enters the gap when injection molding, and flows into the inside or surface of nut, and the bolt cannot be screwed in, and further improve the stability of metal nut on the die insert, improve injection molding yield. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical scheme in the embodiment of the utility model, the following will briefly introduce the drawing needed to be used in the embodiment or prior art description, obviously, the drawing in the following description is only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without paying the creative labor.

[0013] Fig. 1 It is the whole structure schematic drawing of the insert body of the embodiment of the utility model.

[0014] Fig. 2 It is the insert body explosion view of the embodiment of the utility model.

[0015] Fig. 3 It is the structure schematic drawing of the insert structure for the metal nut injection of the embodiment of the utility model installed in injection mold.

[0016] In the drawing: nut insert piece 1, magnet 2, nut insert needle 3, non -magnetic body 4, magnetic limit ring 5, metal nut 6, injection mold 7, mounting hole 8. DETAILED DESCRIPTION

[0017] The embodiment of the utility model will be described in detail below, the example of the embodiment is shown in the drawing, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar function throughout. The embodiment described below by referring to the drawings is exemplary, and is intended to explain the embodiment of the utility model, and can not be understood as the limitation of the utility model.

[0018] In the description of the embodiments of the utility model, it needs to be understood that, if the embodiments of the utility model involve directionality indication, for example, the orientation or position relationship of the indications such as upper, lower, left, right, front, back, inner and outer is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the embodiments of the utility model and simplifying the description, and therefore cannot be understood as the limitation of the utility model.

[0019] 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 as "first", "second" can explicitly or implicitly include one or more of the features. In the description of the embodiments of the utility model, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0020] In the embodiments of the utility model, unless otherwise specifically defined and limited, if there are terms such as "installation", "connection", "connection", "fixing" and the like, they should be understood in a broad sense, for example, they can be fixedly connected, or they can be detachably connected, or they can be integrated. It can be mechanical connection, or electrical connection. It can be directly connected, or indirectly connected through an intermediate medium. It can be the communication or interaction relationship between two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the embodiments of the utility model can be understood according to the specific circumstances.

[0021] As shown in the figure, Figs. 1-3 The embodiment provides a plastic product metal nut injection insert structure, which comprises an insert body installed on an injection mold 7, the insert body comprises a hollow nut insert 1, a magnet 2 is installed in the nut insert 1, one side of the magnet 2 is connected with one end of a nut insert needle 3, the other end of the nut insert needle 3 penetrates the nut insert 1 and is connected with a metal nut 6, a magnetic conductive limiting ring 5 is arranged in the gap between the nut insert needle 3 and the nut insert 1 in the nut insert 1, and a non-magnetic body 4 is embedded on the side of the magnet 2 away from the nut insert needle 3 in the nut insert 1.

[0022] Specifically, the non-magnetic body 4 is arranged on the side of the magnet 2 away from the nut insert needle 3 in the nut insert 1, which facilitates subsequent replacement of the magnet 2 and isolation of the magnetic property of the magnet from the nut insert needle 3; the magnetic property of the magnet 2 can be conducted to the end of the magnetic conductive limiting ring 5 penetrated by the nut insert needle 3 through the arrangement of the magnetic conductive limiting ring 5, so that the magnetic conductive limiting ring 5 magnetically attracts the metal nut 6.

[0023] In the embodiment, as Fig. 1 And Fig. 2As shown, the magnetism-limiting ring 5 is arranged on the nut insert 1 and penetrates the through hole of the nut insert pin 3.

[0024] Specifically, the magnetism-limiting ring 5 limits the magnet 2 in the nut insert 1.

[0025] In the embodiment, as shown in the figure, Fig. 3 The injection mold 7 is provided with a mounting hole 8, and the nut insert 1 is arranged on the mounting hole 8.

[0026] In the embodiment, as shown in the figure, Fig. 3 The metal nut 6 is sleeved on the nut insert pin 3, and the material of the metal nut 3 is iron-containing material, so that the metal nut 6 is stably arranged on the nut insert pin 3.

[0027] In the embodiment, the materials of the nut insert 1 and the nut insert pin 3 are both non-magnetic 304 stainless steel, so that the magnetism of the magnet can only be conducted from one direction of the magnetism-limiting ring 5.

[0028] In the embodiment, the material of the non-magnetic body 4 is aluminum alloy, which is convenient for subsequent replacement of the magnet 2 and isolation of the magnetism in the magnet to the reverse direction of the nut insert pin 3.

[0029] In the embodiment, the magnet 2 is a neodymium magnet, which has high magnetic force and better mechanical strength.

[0030] The above is only a preferred embodiment of the utility model, and is not used to limit the utility model, and any modification, equivalent replacement and improvement within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A structure of an insert for injection molding of a plastic article metal nut, comprising an insert body mounted on an injection molding mold (7), characterized in that, The insert body comprises a hollow nut insert (1), a magnet (2) is installed in the nut insert (1), one side of the magnet (2) is connected with one end of a nut insert needle (3), the other end of the nut insert needle (3) penetrates the nut insert (1) and is connected with a metal nut (6), a magnetic conductive limiting ring (5) is arranged in the gap between the nut insert needle (3) and the nut insert (1) in the nut insert (1), and a non-magnetic body (4) is embedded on the side of the magnet (2) away from the nut insert needle (3) in the nut insert (1).

2. The insert structure for injection molding of a plastic article with a metal nut according to claim 1, wherein The magnetic conductive limiting ring (5) is arranged on the through port of the nut insert (1) penetrated by the nut insert needle (3), and the magnetic conductive limiting ring (5) is sleeved on the nut insert needle (3).

3. The insert structure for injection molding of a plastic article with a metal nut according to claim 1, wherein A mounting hole (8) is formed in the injection mold (7), and the nut insert (1) is arranged on the mounting hole (8).

4. The insert structure for injection molding of a plastic article with a metal nut according to claim 1, wherein The metal nut (6) is sleeved on the nut insert needle (3), and the material of the metal nut (6) is iron-containing material.

5. The insert structure for injection molding of a plastic article with a metal nut according to claim 1, wherein The materials of the nut insert (1) and the nut insert needle (3) are both 304 stainless steel.

6. The insert structure for injection molding of a plastic article with a metal nut according to claim 1, wherein The material of the non-magnetic body (4) is aluminum alloy.

7. The insert structure for injection molding of a plastic article with a metal nut according to claim 1, wherein The magnet (2) is a neodymium magnet.

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