CN210705679U - Insert nut fixing structure of injection mold and injection mold - Google Patents
Insert nut fixing structure of injection mold and injection mold Download PDFInfo
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- CN210705679U CN210705679U CN201921106812.9U CN201921106812U CN210705679U CN 210705679 U CN210705679 U CN 210705679U CN 201921106812 U CN201921106812 U CN 201921106812U CN 210705679 U CN210705679 U CN 210705679U
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- injection mold
- insert nut
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Abstract
The utility model discloses an injection mold's inserts nut fixed knot constructs and injection mold, including preceding core and back core, form the die cavity that is used for holding the inserts nut between preceding core and the back core, preceding core is connected with elastic insert, elastic insert sets up in preceding core, elastic insert is including inlaying the needle, elastic element and connecting piece, connecting piece fixed connection is in preceding core, the connecting piece is connected respectively at elastic element's both ends, inlay the needle, connecting piece fixed connection is in preceding core, elastic element with inlay the needle and be connected, inlay the outer end of needle and insert nut cooperation with location inserts nut. The insert pin is matched with the product to be molded and is used for positioning the insert nut in the cavity; the connecting piece is fixedly connected with the front core, and the elastic insert is driven to move downwards to compress the insert nut when the die is closed; the elastic element dynamically adjusts the total length of the elastic insert according to the height of the insert nut, so that the elastic insert is guaranteed to compress the insert nut, and the qualified rate of molding of the plastic part is improved.
Description
Technical Field
The utility model relates to a mould field especially relates to an injection mold's inserts nut fixed knot constructs and injection mold.
Background
In the production process of plastic parts, in order to meet the requirements of installation, connection and the like, some metal parts or parts made of other materials are often placed in the plastic parts to achieve the purposes of increasing strength and improving mechanical properties such as wear resistance, and the parts are collectively called as inserts in plastic products. The insert is placed in the injection mold for fixation and is matched with the plastic part for injection molding. The requirement of the injection mold on matching is high, the thickness and other dimensions of the metal insert have a certain tolerance range in the production process, and the matching of the insert and the mold is not in place due to the tolerance range, so that the quality of the plastic part is unqualified and the mold is even damaged due to the improper matching of the insert and the mold. For example, in the case of an insert nut, if the size of the nut deviates to an upper tolerance, the nut may be pressed to deform or damage a mold insert; if the size deviates to a lower tolerance, a gap may exist, and during injection molding, fluid glue flows into the gap to block the internal thread of the nut, so that the quality of a plastic part is unqualified, and great influence is brought to production.
SUMMERY OF THE UTILITY MODEL
The present invention aims to solve the above technical problems in the related art at least to some extent. Therefore, the utility model provides an injection mold's inserts nut fixed knot constructs and injection mold.
According to the utility model discloses an aspect provides an injection mold's inserts nut fixed knot constructs, including preceding core and back core, form the die cavity that is used for holding the inserts nut between preceding core and the back core, preceding core is connected with the elasticity mold insert, the elasticity mold insert sets up in preceding core, the elasticity mold insert is including inlaying needle, elastic element and connecting piece, connecting piece fixed connection is in preceding core, elastic element's both ends are connected respectively the connecting piece inlay the needle, inlay the outer end of needle and insert nut cooperation in order to fix a position the inserts nut.
Further, inlay the outer end of needle and be provided with the ladder portion with insert nut complex, the ladder portion is provided with path section and major diameter section, path section inserts downthehole insert nut, major diameter section with insert nut terminal surface butt.
Further, the connecting piece is arranged to be an inner hexagonal external thread stud, and the inner hexagonal external thread stud is fixedly connected with the front core through threads.
Furthermore, the elastic element is arranged to be a columnar elastic colloid, and two ends of the elastic colloid are respectively connected with the connecting piece and the insert pin in a sticky manner.
Furthermore, the elastic colloid is made of polyurethane elastomer.
According to the utility model discloses a second aspect provides an injection mold, include the utility model discloses the first aspect injection mold's insert nut fixed knot construct.
One or more embodiments of the present invention have at least the following beneficial effects:
the utility model discloses an insert nut fixed knot of injection mold constructs and injection mold, including front core and back core, form the die cavity that is used for holding the insert nut between front core and the back core, the front core is connected with elastic insert, elastic insert sets up in the front core, elastic insert includes inlays needle, elastic element and connecting piece, the connecting piece fixed connection is in the front core, drives elastic insert downstream when front core, back core compound die and fixes a position and compress tightly the insert nut; the two ends of the elastic element are respectively connected with the connecting piece and the insert pin, the elastic element has the characteristics of shrinkage and stretching, the total length of the elastic insert can be dynamically adjusted according to the height of the insert nut, the elastic insert can be guaranteed to compress the insert nut, and the molding quality of a plastic part cannot be influenced by the height change of the insert nut. The outer end of the insert pin is matched with the insert nut to position the insert nut, and the insert pin is matched with a product to be molded and simultaneously positions the insert nut in the cavity. When the insert nut deviates to the upper tolerance, the elastic element is compressed and contracted, so that the insert nut is ensured to have enough space for compression, and the die can not be crushed and the insert nut can not be damaged; when the insert nut deviates to the lower tolerance, the elastic element stretches outwards to push the insert pin to press the insert nut downwards, so that the insert nut is fully pressed, the fluid-shaped glue material cannot flow into the threaded hole of the insert nut to block the threaded hole, and the qualified rate of the plastic part forming is improved.
Drawings
Fig. 1 is a schematic structural diagram of a first embodiment of the present invention.
Fig. 2 is an exploded view of the elastic insert and the insert nut according to the first embodiment of the present invention.
Fig. 3 is a schematic view of an angle structure of the first embodiment of the present invention.
Detailed Description
This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.
Referring to fig. 1, 2 and 3, an embodiment of the present invention provides an injection mold, including an insert nut fixing structure of an injection mold, the insert nut fixing structure of an injection mold, including a front core 100 and a rear core 200, a cavity for accommodating and placing an insert nut 300 is formed between the front core 100 and the rear core 200, the front core 100 is connected with an elastic insert, the elastic insert is disposed in the front core 100, the elastic insert includes an insert pin 410, an elastic element 430 and a connecting piece 420, the connecting piece 420 is fixedly connected to the front core 100, the elastic element 430 is connected with the insert pin 410, an outer end of the insert pin 410 cooperates with the insert nut 300 to position the insert nut 300. The insert 410 is disposed in front core 100, and includes an insert pin 410, an elastic element 430, and a connection piece 420, where insert pin 410 positions insert nut 300 in a cavity while cooperating with a product molding, and insert pin 410 is disposed in front core 100 to be slidable in front core 100. The connecting piece 420 is fixedly connected with the front core 100, and drives the elastic insert to move downwards to position and compress the insert nut 300 when the front core 100 and the rear core 200 are closed; the two ends of the elastic element 430 are respectively connected with the connecting piece 420 and the insert pin 410, and the elastic element 430 has the characteristics of contractibility and expansion, so that the elastic insert has an elastic deformation fault-tolerant space, the total length of the elastic insert can be dynamically adjusted according to the height of the insert nut 300, the elastic insert can be ensured to compress the insert nut 300, the molding quality of the plastic part 500 cannot be influenced by the height change of the insert nut 300, and the molding qualification rate of the plastic part 500 is improved.
Specifically, when the actual dimension of the insert nut 300 deviates to the upper tolerance and the front core 100 drives the elastic insert to position the insert nut 300 downward, the elastic element 430 of the elastic insert is pressed to contract inward due to the actual height of the insert nut 300 being higher than the standard dimension, thereby preventing the damage to the mold or the crush of the insert nut 300. When the actual size of the insert nut 300 deviates to the lower tolerance, the front core 100 drives the elastic insert to position the insert nut 300 downwards, because the actual height of the insert nut 300 is lower than the standard height, a gap which can not be sealed is formed between the insert pin 410 and the insert nut 300, at the moment, the elastic element 430 of the elastic insert is in an outwards stretching state, the insert pin 410 is pushed to press downwards to seal the insert nut 300, the insert nut 300 is ensured to be fully compressed, the fluid-shaped glue material for injection molding cannot flow into the threaded hole of the insert nut 300 to block the threaded hole, damage is caused to the internal thread, and the molding qualification rate of the plastic part 500 is improved.
Further, the outer end of the insert pin 410 is provided with a step 411 matched with the insert nut 300, the step 411 is provided with a small diameter section and a large diameter section, the small diameter section is inserted into the hole of the insert nut 300, and the large diameter section is abutted to the end face of the insert nut 300. The small-diameter section of the step portion 411 is inserted into the insert nut 300 hole, the large-diameter section of the step portion 411 is abutted to the end face of the insert nut 300, the sealing effect on the inner hole of the insert nut 300 can be enhanced, the fluid-shaped rubber material for injection molding cannot flow into the threaded hole of the insert nut 300 to block the threaded hole, and the molding qualified rate of the plastic part 500 is improved.
Further, the connecting member 420 is configured as an inner hexagonal external threaded stud, and the inner hexagonal external threaded stud is fixed to the front core 100 in a threaded connection manner. An inner hexagonal external threaded stud is used as the connecting piece 420, and the inner hexagonal external threaded stud is fixedly connected with the front core 100 through threaded connection, so that the connecting piece 420 can be fixedly connected with the front core 100 simply and quickly.
Further, the elastic element 430 is a cylindrical elastic colloid, and two ends of the elastic colloid are respectively connected with the connecting member 420 and the insert pin 410 in an adhesive manner. The elastic element 430 is provided as a column-shaped elastic gel, which is adhesively connected to the connection member 420 and the insert pin 410, and provides elasticity while achieving connection of the elastic element 430 and the insert pin 410.
Furthermore, the elastic colloid is made of polyurethane elastomer. The polyurethane elastomer is a material widely applied in the field of molds, has the characteristics of high temperature resistance, good elasticity and strong metal adhesion, and enables the connection between the elastic colloid and the insert pins 410 and the connecting pieces 420 to be simple and stable.
While the preferred embodiments of the present invention have been described in detail, it will be understood by those skilled in the art that the invention is not limited thereto, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (6)
1. The utility model provides an injection mold's inserts nut fixed knot constructs which characterized in that: the insert positioning device comprises a front core and a rear core, wherein a cavity for accommodating an insert nut is formed between the front core and the rear core, the front core is connected with an elastic insert, the elastic insert is arranged in the front core, the elastic insert comprises an insert needle, an elastic element and a connecting piece, the connecting piece is fixedly connected to the front core, two ends of the elastic element are respectively connected with the connecting piece and the insert needle, and the outer end of the insert needle is matched with the insert nut to position the insert nut.
2. The insert nut fixing structure of an injection mold according to claim 1, characterized in that: the outer end of inlaying the needle is provided with the ladder portion with insert nut complex, the ladder portion is provided with path section and major diameter section, the path section inserts the insert nut is downthehole, the major diameter section with insert nut terminal surface butt.
3. The insert nut fixing structure of an injection mold according to claim 1, characterized in that: the connecting piece is arranged to be an inner hexagonal external thread stud, and the inner hexagonal external thread stud is fixedly connected with the front core through threads.
4. The insert nut fixing structure of an injection mold according to claim 1, characterized in that: the elastic element is arranged to be a columnar elastic colloid, and two ends of the elastic colloid are respectively connected with the connecting piece and the insert pin in a sticky mode.
5. The insert nut fixing structure of an injection mold according to claim 4, wherein: the elastic colloid is made of polyurethane elastomer.
6. An injection mold, its characterized in that: an insert nut fixture structure comprising the injection mold according to any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921106812.9U CN210705679U (en) | 2019-07-15 | 2019-07-15 | Insert nut fixing structure of injection mold and injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921106812.9U CN210705679U (en) | 2019-07-15 | 2019-07-15 | Insert nut fixing structure of injection mold and injection mold |
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| Publication Number | Publication Date |
|---|---|
| CN210705679U true CN210705679U (en) | 2020-06-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921106812.9U Active CN210705679U (en) | 2019-07-15 | 2019-07-15 | Insert nut fixing structure of injection mold and injection mold |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114407278A (en) * | 2021-12-19 | 2022-04-29 | 浙江台州美多模具有限公司 | Insert positioning mechanism of injection mold |
| CN114734577A (en) * | 2022-03-11 | 2022-07-12 | 精英模具（珠海）有限公司 | Injection molding process |
| CN114919133A (en) * | 2022-05-16 | 2022-08-19 | 格力大松（宿迁）生活电器有限公司 | Die pressing mechanism and die device for producing lower tubes of floor fans |
| CN115416239A (en) * | 2022-11-07 | 2022-12-02 | 宁波跃飞模具有限公司 | Vehicle window glass bracket mould and automatic feeding device thereof |
| WO2023065483A1 (en) * | 2021-10-19 | 2023-04-27 | 歌尔股份有限公司 | Fixing device for injection molding and injection molding device |
-
2019
- 2019-07-15 CN CN201921106812.9U patent/CN210705679U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023065483A1 (en) * | 2021-10-19 | 2023-04-27 | 歌尔股份有限公司 | Fixing device for injection molding and injection molding device |
| CN114407278A (en) * | 2021-12-19 | 2022-04-29 | 浙江台州美多模具有限公司 | Insert positioning mechanism of injection mold |
| CN114734577A (en) * | 2022-03-11 | 2022-07-12 | 精英模具（珠海）有限公司 | Injection molding process |
| CN114734577B (en) * | 2022-03-11 | 2023-07-07 | 精英模具（珠海）有限公司 | Injection molding process |
| CN114919133A (en) * | 2022-05-16 | 2022-08-19 | 格力大松（宿迁）生活电器有限公司 | Die pressing mechanism and die device for producing lower tubes of floor fans |
| CN115416239A (en) * | 2022-11-07 | 2022-12-02 | 宁波跃飞模具有限公司 | Vehicle window glass bracket mould and automatic feeding device thereof |
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