CN211591060U - Nut needle positioning structure of pre-buried nut plastic part mould - Google Patents
Nut needle positioning structure of pre-buried nut plastic part mould Download PDFInfo
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- CN211591060U CN211591060U CN201922312446.9U CN201922312446U CN211591060U CN 211591060 U CN211591060 U CN 211591060U CN 201922312446 U CN201922312446 U CN 201922312446U CN 211591060 U CN211591060 U CN 211591060U
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- nut
- ejector pin
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- embedded nut
- pin
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Abstract
The utility model discloses a nut pin positioning structure of a pre-buried nut plastic part mould, which comprises a plastic part with a pre-buried blind hole; the embedded nut is arranged inside the embedded blind hole; and the ejector sleeve needle assembly is provided with an ejector sleeve and an ejector pin, the ejector pin extends into the embedded nut, an accommodating groove is formed in the outer peripheral surface of the part inside the embedded nut in the ejector pin, an elastic card is accommodated in the accommodating groove, the elastic card and the ejector pin have a common extension direction, the first end of the elastic card is connected with the ejector pin into a whole, the second end of the elastic card is bent and upwarped relative to the ejector pin, and the elastic card is tightly matched with the embedded nut. The beneficial effects of the utility model reside in that: the elastic clamping piece clamping embedded nut formed after the ejector pin is processed is utilized to enable the elastic clamping piece clamping embedded nut to be positioned stably and reliably, and the problem of loosening and shifting of the nut in the moving process of the die is solved.
Description
Technical Field
The utility model relates to a buried nut plastic part mould nut needle location structure in advance.
Background
The plastic products have more embedded nut structure requirements, commonly used for M3/M4/M5 and the like, and when the plastic products are injection molded on a mold, the nuts are embedded on the structural parts of the products and are injection molded together. Referring to fig. 1, a currently used nut pin positioning structure is shown. It includes plastic part 1, nut 2, department's section of thick bamboo 3 and thimble 4. However, due to the influence of the processing precision of each batch of the diameter of the threaded bottom hole of the nut 2, when the nut 2 is positioned and placed, firstly, the nut 2 cannot be directly sleeved into the thimble 4 (or the nut positioning pin), or the nut 2 cannot be smoothly sleeved into a position required by the thimble 4 (or the nut positioning pin); secondly, after the nut 2 is sleeved into the thimble 4 (or the nut positioning needle), a gap is formed between the two, which is larger than 0.07 mm, so that the nut 2 is screwed into plastic, the use of a product is influenced, or the nut 2 moves when a mould acts, the position of the nut 2 on the product is influenced, and the product is poor.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to overcome pre-buried nut's drunkenness and thimble (or nut pilot pin) and the fit clearance of nut, provide a novel pre-buried nut plastic part mould nut needle location structure.
In order to realize the purpose, the technical scheme of the utility model is as follows: a nut pin positioning structure for a plastic part mold of a pre-embedded nut comprises,
a plastic part having a pre-buried blind hole;
the embedded nut is arranged inside the embedded blind hole; and the number of the first and second groups,
the ejector sleeve pin assembly is provided with an ejector sleeve and an ejector pin, the ejector pin extends to the inside of the embedded nut, an accommodating groove is formed in the outer peripheral surface of the part inside the embedded nut in the ejector pin, an elastic clamping sheet is accommodated in the accommodating groove, the elastic clamping sheet and the ejector pin have a common extending direction, the first end of the elastic clamping sheet is connected with the ejector pin into a whole, the second end of the elastic clamping sheet is bent and upwarped relative to the ejector pin, and the elastic clamping sheet is tightly matched with the embedded nut.
As an optimal scheme of the nut pin positioning structure of the embedded nut plastic part mold, the ejector pins are matched with the embedded nuts in a shaft hole mode.
As a preferred scheme of the nut pin positioning structure of the embedded nut plastic part mold, the first end of the elastic clamping piece is farther away from the ejector sleeve relative to the second end of the elastic clamping piece.
Compared with the prior art, the beneficial effects of the utility model reside in at least: utilize the elasticity card screens embedded nut that the thimble processed the back and form, make its location that can be reliable and stable, solve the not hard up aversion problem of nut in the mould motion process, reduce the machining precision of embedded nut base diameter simultaneously, improve the commonality of nut specification, solve the degree of difficulty when the nut is pre-buried to be placed simultaneously, improve the qualification rate of product because of pre-burying the nut problem and moulding plastics.
In addition to the technical problems addressed by the present invention, the technical features constituting the technical solutions, and the advantages brought by the technical features of the technical solutions described above, other technical problems solved by the present invention, other technical features included in the technical solutions, and advantages brought by the technical features of the present invention will be further described in detail with reference to the accompanying drawings.
Drawings
Fig. 1 is a schematic structural diagram of the prior art.
Fig. 2 is an appearance schematic diagram (before embedding) of an embodiment of the present invention.
Fig. 3 is an appearance schematic diagram (after embedding) of an embodiment of the present invention.
Fig. 4 is a schematic structural diagram of an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the following detailed description and accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. Furthermore, the technical features mentioned in the embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.
Referring to fig. 2 to 4, a nut pin positioning structure of a mold for plastic parts of embedded nuts is shown. The positioning structure comprises a plastic part 1, a pre-embedded nut 2, a cylinder ejector pin assembly and the like.
The plastic part 1 is provided with a pre-buried blind hole.
The embedded nut 2 is arranged inside the embedded blind hole.
The ejector sleeve needle assembly is provided with an ejector sleeve 3 and an ejector pin 4. The thimble 4 extends to the inside of embedded nut 2, be formed with the holding recess on the partial outer peripheral face in the embedded nut 2 in the thimble 4. The receiving recess receives therein a resilient clip 40. The accommodating groove, the elastic clamping piece 40 and the thimble 4 have a common extending direction. The first end of the spring card 40 is farther from the cartridge 3 than the second end of the spring card 40. The first end of the elastic clamping piece 40 is connected with the thimble 4 into a whole. The second end of the elastic clamping piece 40 bends and upwarps relative to the thimble 4, and the elastic clamping piece 40 is tightly matched with the embedded nut 2.
The material of the thimble 4 must be a metal material with certain toughness and rigidity.
The diameter of the thimble 4 must still accord with the minimum tolerance dimension of the bottom diameter of the embedded nut 2.
The width of the slot structure of the thimble 4 can not affect the rigidity and elasticity of the needle (the oversize positioning needle can be broken)
. The necessary direction of the slotted configuration must be relative to the nut orientation.
The length of the slotted structure must be less than the length of the nut (too long nut threads can enter glue through the slot, and meanwhile the elastic clamping piece loses deformation space).
Utilize the elasticity card screens embedded nut that the thimble processed the back and form, make its location that can be reliable and stable, solve the not hard up aversion problem of nut in the mould motion process, reduce the machining precision of embedded nut base diameter simultaneously, improve the commonality of nut specification, solve the degree of difficulty when the nut is pre-buried to be placed simultaneously, improve the qualification rate of product because of pre-burying the nut problem and moulding plastics.
The above description is only intended to illustrate embodiments of the present invention, and the description is specific and detailed, but not to be construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (3)
1. A nut pin positioning structure of a pre-embedded nut plastic part mold is characterized by comprising,
a plastic part having a pre-buried blind hole;
the embedded nut is arranged inside the embedded blind hole; and the number of the first and second groups,
the ejector sleeve pin assembly is provided with an ejector sleeve and an ejector pin, the ejector pin extends to the inside of the embedded nut, an accommodating groove is formed in the outer peripheral surface of the part inside the embedded nut in the ejector pin, an elastic clamping sheet is accommodated in the accommodating groove, the elastic clamping sheet and the ejector pin have a common extending direction, the first end of the elastic clamping sheet is connected with the ejector pin into a whole, the second end of the elastic clamping sheet is bent and upwarped relative to the ejector pin, and the elastic clamping sheet is tightly matched with the embedded nut.
2. The nut pin positioning structure of the embedded nut plastic part mold according to claim 1, wherein the ejector pin is matched with the embedded nut.
3. The nut pin positioning structure of the embedded nut plastic part mold according to claim 1, wherein the first end of the elastic clamping piece is farther away from the ejector sleeve than the second end of the elastic clamping piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922312446.9U CN211591060U (en) | 2019-12-20 | 2019-12-20 | Nut needle positioning structure of pre-buried nut plastic part mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922312446.9U CN211591060U (en) | 2019-12-20 | 2019-12-20 | Nut needle positioning structure of pre-buried nut plastic part mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211591060U true CN211591060U (en) | 2020-09-29 |
Family
ID=72594096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922312446.9U Active CN211591060U (en) | 2019-12-20 | 2019-12-20 | Nut needle positioning structure of pre-buried nut plastic part mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211591060U (en) |
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2019
- 2019-12-20 CN CN201922312446.9U patent/CN211591060U/en active Active
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