CN102555157A - Insert structure - Google Patents

Abstract

The invention provides an insert structure, which comprises an insert body and an insert member which is inserted in the insert body; the insert member comprises a fixation part of a multilateral prism structure; and a smooth chamfer is arranged at the boundary of a plurality of outer surfaces of the insert member. The insert member of the insert structure can be accurately positioned in the insert body; and the insert structure has the advantage of effectively preventing the insert body from cracking.

Description

The mold insert structure

[technical field]

The present invention relates to the mold insert field, relate in particular to a kind of mold insert structure.

[background technology]

Nowadays, plasthetics, for example the application of Merlon etc. is more next approximately extensively.In some particular application,, must be injected with metal inserted piece in the shell moulding of plastic cement like inside and outside conduction, the needs that are fastenedly connected etc.On the manufacturing process in order to prevent that this type mold insert from rotating when receiving peripheral force; Generally can carry out annular knurl to columniform mold insert surface handles; The purpose of annular knurl is to prevent that circular mold insert mold insert when screw is fastening from rotating with screw, but can there be a lot of tiny wedge angles in the cylinder mold insert surface behind the annular knurl, and these tiny sharp corners tend to cause housing to be isolated because local internal stress concentrates in use; Seriously break up to the later stage, cause the life-span to terminate too early.

[summary of the invention]

Based on this, be necessary to provide a kind of improve that working strength prevents to break the mold insert structure.

A kind of mold insert structure comprises and inlays body and be embedded in the said intrinsic insert of inlaying that said insert comprises that a plurality of fixed parts are polygon column construction, and the intersection of a plurality of outer surfaces of this insert is set to slick and sly chamfering.

According to a preferred embodiment of the invention, said insert comprises first fixed part, second fixed part and the incarceration portion that connects said first fixed part and said second fixed part.

According to a preferred embodiment of the invention, said first fixed part and/or said second fixed part are the hexagonal column structure.

According to a preferred embodiment of the invention; Said incarceration portion lateral dimension is less than the lateral dimension of said first fixed part and said second fixed part; Thereby between said first fixed part and said second fixed part, form sunk structure, said inlaying in the said sunk structure of being partially submerged into of body.

According to a preferred embodiment of the invention, what said incarceration portion was a diameter less than said first fixed part and the said second fixed part lateral dimension is cylindrical, and the cylinder two ends connect said first fixed part and said second fixed part respectively.

According to a preferred embodiment of the invention, said incarceration portion radial dimension is greater than said first fixed part and said second fixed part.

According to a preferred embodiment of the invention, be provided with fixing hole in the said insert, be provided with retaining thread in the fixing hole, the retaining thread of the said fixing hole of object merits and demerits that is fixed is fixed on the said mold insert structure.

According to a preferred embodiment of the invention, the said body of inlaying is by Merlon (Polycarbonate, PC) integrated through injection molding moulding.

Than prior art; The insert of mold insert structure of the present invention adopts polygon prismatic structure; And corner angle, the wedge angle on insert surface are set to slick and sly chamfering; Can prevent effectively that not only insert from inlaying body relatively and rotating, can also prevent said insert local stress excessive cause inlay the body problems of crack; Further, the incarceration portion of said insert forms sunk structure in the axial direction, and the part material of inlaying body is absorbed in the said sunk structure, prevents that said insert axially is subjected to displacement with the said body of inlaying along it.In sum, insert of the present invention can accurately be located in inlaying body, and has the advantage that can effectively prevent to inlay the body cracking.

[description of drawings]

The structural representation of Fig. 1 mold insert structure of the present invention.

Fig. 2 is the local enlarged diagram of mold insert structure shown in Figure 1.

Fig. 3 is the structural representation of the insert of mold insert structure shown in Figure 1.

[specific embodiment]

See also Fig. 1, Fig. 1 is the structural representation of mold insert structure of the present invention.Mold insert structure 100 comprises inlays body 10 and insert 20.Inlaying body 10 for example can be that (Polycarbonate, PC) integrated through injection molding is processed by Merlon.Merlon is a kind of armorphous thermoplastic resin of high comprehensive performance, has excellent electrical insulating property, extensibility, dimensional stability and chemical resistance, higher intensity, hear resistance and cold resistance; High temperature resistant 125 degree, low temperature resistant-40 degree, also have from put out, advantage such as fire-retardant, nontoxic, pigmentable, and intensity is fine with toughness, large-scale industrial production and the characteristic of processing easily also make its price extremely cheap.The intensity of Merlon is high, and has wide ripple light transmission features, and the engineering plastics good as a kind of properties of transparency are widely used.Some other hot melt, injected plastics material etc. also can be applicable to the body 10 of inlaying of the present invention, enumerate no longer one by one at this.

Need to prove that mold insert structure 100 is not limited to concrete function of use, need in the device that uses insert 20, device, all can use mold insert structure 100 of the present invention in every case.

See also Fig. 2, Fig. 2 is the local enlarged diagram of mold insert structure 100 shown in Figure 1.Insert 20 is an immobilising device, is embedded in and inlays in the body 10, and keep relative stability with inlaying body 10, can not produce relative rotation between the two, displacement such as slip.Insert 20 can be bolted fastener that for example has retaining thread 28 etc., mainly is used for another object is fastened on inlaying on the body 10.Further, insert 20 can be that for example metal materials such as copper, aluminium, alloy are processed, and can play the effect of strengthening intensity and conduction.

Particularly, see also Fig. 3, Fig. 3 is the structural representation of insert 20 shown in Figure 1.Insert 20 is the hexagonal column structure that is substantially made of copper, and it comprises first fixed part 21, second fixed part 22 and connects first fixed part 21 and the incarceration portion 23 of second fixed part 22.Wherein first fixed part 21 is similar basically with second fixed part, 22 structures; Be roughly hexagonal column nut structure; End face and side intersection at first fixed part 21 and second fixed part 22 are set to slick and sly chamfering, and the intersection between the side of hexagonal column nut is arranged to slick and sly excessively radian chamfering.Why wedge angle, the corners branch of first fixed part 21 and second fixed part 22 are set to slick and sly chamfering, also be cause in order to prevent sharp corners that insert 20 forms from the local stress of inlaying body 10 is increased advance to split, problem such as opening.First fixed part 21 of hexagonal column and second fixed part 22 can prevent that in that radially development length is different insert 20 from rotating in inlaying body 10, strengthen insert 20 and the bond strength of inlaying body 10.

Further, incarceration portion 23 is cylindrical, connects first fixed part 21 and second fixed part 22 respectively at two ends.And the diameter of incarceration portion 23 is less than the diameter or the lateral dimension of first fixed part 21 and second fixed part 22, thereby between first fixed part 21 and second fixed part 22, forms a sunk structure.So design then can insert 20 axially on form the structure that height differs, the part material of inlaying body 10 can embed in the sunk structure, prevent insert 20 along its axially with inlay body 10 relative displacements take place.Further, incarceration portion 23 not only can be set to a sunk structure, can also be arranged to a plurality of adjacent depressions as required, and like broach shape depression etc., the quantity of sunk structure is unrestricted.Further, incarceration portion 23 is not limited to cylindrical, also can be other shapes, but its lateral dimension should be less than the size of first fixed part 21 and second fixed part 22, to form the incarceration structure.

Further, the diameter of incarceration portion 23 also can be greater than the diameter or the lateral dimension of first fixed part 21 and second fixed part 22, as long as form the incarceration structure at the axial surface of insert 20.

Further, insert 20 can also adopt other non-circular inserts 20 except adopting hexagonal column metalwork shown in Figure 3; Like structures such as quadrangular prism shape, oblate, triangle columns, if the insert 20 that differs at radical length all can, especially; Like above-mentioned hexagon prism shape insert 20; No matter adopt what kind of insert 20 structures, sharp corners that all should it is surperficial, wedge angle etc. partly are arranged to slick and sly chamfering, prevent that the excessive damage of local stress from inlaying body 10.Among the present invention, insert 20 adopts the hexagonal column structures, can process on demand according to existing metal inserted piece on the needs selection market of structure and space, intensity to get final product.If there is not the specification hexagonal insert 20 that needs on the market, can select the nuts such as M2, M3, M4 of standard on the market, suitably remove to select existing material, the design of change actual product according to standard.And the metal of outer-hexagonal cylindricality selectable specification on market is many, makes things convenient for selection, reduces production costs.

Further, the inside of insert 20 is that through hole or blind hole with retaining thread 28 runs through first fixed part 21, second fixed part 22 and incarceration portion 23, to cooperate external screw other objects is combined with mold insert structure 100.Further, the tooth form of screw thread 28, pitch, diameter etc. all can be provided with according to the actual product demand, do not do concrete qualification at this.

Compared to prior art; The insert 20 of mold insert structure 100 of the present invention adopts polygon prismatic structure; And corner angle, the wedge angle on insert 20 surfaces are set to slick and sly chamfering; Can prevent effectively that not only insert 20 from inlaying body 10 relatively and rotating, can also prevent insert 20 local stresses excessive cause inlay body 10 problems of crack; Further, the incarceration portion of insert 20 forms sunk structure in the axial direction, and the part material of inlaying body 10 is absorbed in the sunk structure, prevent insert 20 along its axially with inlay body 10 and be subjected to displacement.To sum up, the positioning stablity of insert 20 in body 10 of mold insert structure 100 of the present invention, and the advantage that can effectively prevent to inlay body 10 crackings.

The above embodiment has only expressed several kinds of embodiments of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to claim of the present invention.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the present invention's design, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with accompanying claims.

Claims (8)

1. a mold insert structure comprises and inlays body and be embedded in the said intrinsic insert of inlaying, and it is characterized in that said insert comprises the fixed part of polygon prism structure, and the intersection of each adjacent external surfaces of this insert is slick and sly chamfering setting.

2. mold insert structure as claimed in claim 1 is characterized in that, said insert comprises first fixed part, second fixed part and the incarceration portion that connects said first fixed part and said second fixed part.

3. mold insert structure as claimed in claim 2 is characterized in that, said first fixed part and/or said second fixed part are the hexa-prism structure.

4. mold insert structure as claimed in claim 2; It is characterized in that; Said incarceration portion radial dimension is less than said first fixed part and said second fixed part; Thereby between said first fixed part and said second fixed part, form sunk structure, said inlaying in the said sunk structure of being partially submerged into of body.

5. mold insert structure as claimed in claim 2 is characterized in that, what said incarceration portion was a diameter less than said first fixed part and the said second fixed part lateral dimension is cylindrical, and the cylinder two ends connect said first fixed part and said second fixed part respectively.

6. mold insert structure as claimed in claim 2 is characterized in that, said incarceration portion radial dimension is greater than said first fixed part and said second fixed part.

7. mold insert structure as claimed in claim 1 is characterized in that, is provided with fixing hole in the said insert, is provided with retaining thread in the fixing hole.

8. mold insert structure as claimed in claim 1 is characterized in that, said to inlay body one-body molded by polycarbonate injection moulded.

Images