CN217729480U

CN217729480U - Positioning mechanism for embedded nut product

Info

Publication number: CN217729480U
Application number: CN202221645685.1U
Authority: CN
Inventors: 许龙云
Original assignee: Huangyu Precision Technology Suzhou Co ltd
Current assignee: Huangyu Precision Technology Suzhou Co ltd
Priority date: 2022-06-29
Filing date: 2022-06-29
Publication date: 2022-11-04
Anticipated expiration: 2032-06-29

Abstract

The utility model discloses a bury positioning mechanism of nut product, including public mould benevolence, be provided with public mould backing plate below the public mould benevolence, public mould benevolence lower part is hollow structure, be provided with the liftout plate of up-and-down motion in the hollow structure, be provided with floating spring in the public mould benevolence, floating spring's upper end and liftout plate lower surface contact, the liftout inboard lower extreme that is fixed with public mould locating pin and public mould return round pin, public mould benevolence is stretched out to the upper end of public mould return round pin, the portion of moulding plastics has been seted up to public mould benevolence upper end, it buries nut and terminal to be provided with in the portion of moulding plastics, the terminal is located buries the nut top, public mould locating pin upper end stretches into to bury in nut and the terminal, be provided with the master model locating pin that sets up directly over the public mould locating pin. The utility model provides a pair of bury positioning mechanism of nut product can bury the nut automatically, cancels nut riveting technology, practices thrift the cost.

Description

Positioning mechanism for embedded nut product

Technical Field

The utility model relates to a bury positioning mechanism of nut product belongs to injection moulding technical field.

Background

In the prior art, the production flow of the embedded nut product mainly comprises the following steps: the method comprises the steps of stamping a terminal, riveting a nut, opening a die, placing the terminal of the riveting nut, closing the die, embedding an injection product, checking electrical conduction, and warehousing after the product is qualified. Because the male/female dies of the injection mold are provided with the embedded nuts, the center holes can not be opened for positioning due to the electrical function, so that the mold is difficult to directly form, a nut and terminal riveting process needs to be added, the nut positioning is assisted, and the cost is higher.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome prior art's defect, provide a bury positioning mechanism of nut product, can bury the nut automatically, cancel nut riveting technology practices thrift the cost.

In order to solve the technical problem, the utility model discloses a technical scheme does:

the utility model provides a bury positioning mechanism of nut product, includes the core mould benevolence, be provided with the core mould backing plate below the core mould benevolence, core mould benevolence lower part is hollow structure, be provided with the liftout plate of up-and-down motion in the hollow structure, be provided with floating spring in the core mould benevolence, floating spring's upper end with liftout plate lower surface contact, the liftout inboard is fixed with the lower extreme of core mould locating pin and core mould return round pin, the upper end of core mould return round pin stretches out core mould benevolence, the portion of moulding plastics has been seted up to core mould benevolence upper end, be provided with in the portion of moulding plastics and bury nut and terminal, the terminal is located bury the nut top, core mould locating pin upper end stretches into bury in nut and the terminal, be provided with the master model locating pin that sets up down directly over the core mould locating pin.

The ejector plate comprises an upper ejector plate and a lower ejector plate which are connected up and down, the lower ends of the male die positioning pin and the male die return pin are in contact with the upper surface of the lower ejector plate, and the male die positioning pin and the male die return pin penetrate through the upper ejector plate.

The upper ejection plate and the lower ejection plate are fixed through screws.

The number of the male die return pins is 2, and the male die positioning pins are positioned between the two male die return pins.

An annular groove is formed in the male die base plate, and the lower end of the floating spring is located in the annular groove.

The number of the floating springs is 2.

The utility model has the advantages that: the utility model provides a positioning mechanism for embedding nut products, which adds a male die floating pin pulling structure and uses a nut center hole to preliminarily position a nut; when the die is closed, the female die positioning pin accurately positions the nut, the male die positioning pin returns to the surface of the plastic, relay positioning of the nut is completed, the nut is directly embedded, a post-riveting process is omitted, and cost is saved.

Drawings

Fig. 1 is a schematic perspective view of a positioning mechanism for an embedded nut product according to the present invention;

fig. 2 isbase:Sub>A schematic cross-sectional view taken along linebase:Sub>A-base:Sub>A in fig. 1.

The reference numbers in the figures are as follows: 1-embedding the product; 2-a core insert; 3-male die backing plate; 4-a floating spring; 5-lower ejector plate; 6-upward ejecting the plate; 7-male die locating pins; 8-embedding a nut; 9-a female die positioning pin; 10-male mold return pin; 11-terminal.

Detailed Description

The present invention will be further described with reference to the accompanying drawings, and the following embodiments are only used to illustrate the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

As shown in fig. 1 and 2, the utility model provides a positioning mechanism for embedded nut products, which comprises a core insert 2, a core insert backing plate 3 is arranged below the core insert 2, the lower part of the core insert 2 is a hollow structure, an ejecting plate moving up and down is arranged in the hollow structure, and a floating spring 4 is arranged in the core insert 2. In the present embodiment, the number of the floating springs 4 is 2. The upper end of the floating spring 4 is contacted with the lower surface of the ejector plate and is used for supporting the ejector plate. An annular groove is formed in the male die base plate 3, and the lower end of the floating spring 4 is located in the annular groove.

The lower ends of a male die positioning pin 7 and a male die return pin 10 are fixed in the ejection plate, the number of the male die return pins 10 is 2, and the male die positioning pin 7 is located between the two male die return pins 10. The ejector plate comprises an upper ejector plate 6 and a lower ejector plate 5 which are connected up and down, and the upper ejector plate 6 and the lower ejector plate 5 are fixed through screws. The lower ends of the male die positioning pin 7 and the male die return pin 10 are in contact with the upper surface of the lower ejection plate 5, and the male die positioning pin 7 and the male die return pin 10 penetrate through the upper ejection plate 6.

Public mould return pin 10's upper end stretches out public mould benevolence 2, and the portion of moulding plastics has been seted up to public mould benevolence 2 upper end, is provided with in the portion of moulding plastics and buries nut 8 and terminal 11, and terminal 11 is located to bury nut 8 top, and public mould locating pin 7 upper end stretches into under floating spring 4's effect and buries in nut 8 and terminal 11, and when the liftout plate downstream, floating spring 4 is compressed, drives public mould locating pin 7 simultaneously and stretches out from burying nut 8 and terminal 11. A female die positioning pin 9 arranged downwards is arranged right above the male die positioning pin 7, and the female die positioning pin 9 extends into the embedded nut 8 and the terminal 11 during die assembly.

The utility model discloses a theory of operation does: firstly, opening the die, wherein the male die return pin 10 is in a floating ejection state under the action of the floating spring 4; secondly, embedding the embedded nut 8, the terminal 11 and other embedded parts in sequence, and sleeving the nut 8 and the terminal 11 on the male die positioning pin 7 to keep the embedded parts stably positioned; thirdly, the die is closed, and the male die return pin 10 is gradually pre-pressed and returned by the die closing surface of the female die in the popping state of the floating spring 4; the female die positioning pin 9 is synchronized to perform die assembly movement, so that the female die positioning pin 9 and the embedded nut 8 are accurately positioned, and meanwhile, the male die positioning pin 7 gradually retreats to the surface of the embedded product 1; fourthly, the mould is closed in place, embedded and ejected, and the product 1 with the embedded nut 8 is molded and is cycled periodically.

The above are only preferred embodiments of the present invention, and it should be noted that: for those skilled in the art, without departing from the principle of the present invention, a plurality of modifications and decorations can be made, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a positioning mechanism of embedded nut product which characterized in that: the core insert comprises a core insert (2), a core insert base plate (3) is arranged below the core insert (2), the lower portion of the core insert (2) is of a hollow structure, an ejector plate moving up and down is arranged in the hollow structure, a floating spring (4) is arranged in the core insert (2), the upper end of the floating spring (4) is in lower surface contact with the ejector plate, the lower end of a core locating pin (7) and a core return pin (10) are fixed in the ejector plate, the upper end of the core return pin (10) stretches out of the core insert (2), an injection molding part is arranged at the upper end of the core insert (2), a buried nut (8) and a terminal (11) are arranged in the injection molding part, the terminal (11) is located above the buried nut (8), the upper end of the core locating pin (7) stretches into the buried nut (8) and the terminal (11), and a female mold (9) arranged downwards is arranged right above the core locating pin (7).

2. A positioning mechanism for a drop nut product as defined in claim 1, wherein: the ejection plate comprises an upper ejection plate (6) and a lower ejection plate (5) which are connected up and down, the lower ends of the male die positioning pin (7) and the male die return pin (10) are in contact with the upper surface of the lower ejection plate (5), and the male die positioning pin (7) and the male die return pin (10) penetrate through the upper ejection plate (6).

3. A positioning mechanism for a drop nut product as defined in claim 2, wherein: the upper ejection plate (6) and the lower ejection plate (5) are fixed through screws.

4. A positioning mechanism for a drop nut product as defined in claim 1, wherein: the number of the male die return pins (10) is 2, and the male die positioning pin (7) is positioned between the two male die return pins (10).

5. A positioning mechanism for a drop nut product as defined in claim 1, wherein: an annular groove is formed in the male die base plate (3), and the lower end of the floating spring (4) is located in the annular groove.

6. A positioning mechanism for a drop nut product as defined in claim 1, wherein: the number of the floating springs (4) is 2.