CN203901645U - Mold structure used for embedded insert nuts - Google Patents
Mold structure used for embedded insert nuts Download PDFInfo
- Publication number
- CN203901645U CN203901645U CN201420354539.2U CN201420354539U CN203901645U CN 203901645 U CN203901645 U CN 203901645U CN 201420354539 U CN201420354539 U CN 201420354539U CN 203901645 U CN203901645 U CN 203901645U
- Authority
- CN
- China
- Prior art keywords
- rear mold
- nut
- nuts
- mold
- positioning head
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model discloses a mold structure used for embedded insert nuts. The mold structure comprises a front mold and a rear mold and is characterized in that the front mold comprises a bump head used for bumping against the rear mold; the bump head comprises a bump platform and a front mold insert pin; the front mold insert pin is embedded in the bump platform and extends to form a positioning head used for connecting nuts in series; the rear mold comprises a base plate and at least two rear mold insert pins used for positioning the nuts; the base plate is provided with a groove used for containing the positioning head and the nuts installed on the positioning head; at least two rear mold insert pins extend out of the bottom of the groove; the top ends of the rear mold insert pins are in the same plane; the distances between the rear mold insert pins and the front mold insert pin are equivalent to the length of the nuts needing to be machined. Compared with the prior art, the mold structure has the beneficial effects that when the embedded insert nuts are manufactured, nut positioning can be better achieved, thus solving the problems of nut sinking, glue entering and the like in the manufacturing process, effectively increasing the production yield and achieving greater benefits for enterprises.
Description
Technical field
The utility model relates to Mould Machining and manufactures field, particularly a kind of mould structure for pre-buried insert nut.
Background technology
In the process in some productions and use, need repeated disassembled and assembled, the structural requirement screw thread durable that lead sealing is fixing, complete reliable, using pre-buried insert nut is a kind of good selection, guaranteed lead sealing screw with the assembling many times of nut with separated.But at enterprise practical, produce in product process the requirement due to sealing, pre-buried insert nut is in the process of injecting products, because mobility and the pressure of plastics causes nut to sink, enter glue, move down the fraction defectives such as through hole higher, the difficulty of doing over again, usually produces and causes very large loss to enterprise.
Utility model content
In view of this, the utility model provides a kind of mould structure for pre-buried insert nut, can solve the problems such as nut sinking that cause in injection moulding process.
The technical solution of the utility model is as follows: a kind of for processing the mould structure of pre-buried insert nut, comprise front mould and rear mold, described front mould comprise for rear mold collide to meeting and discussing, touch platform and front mould pin described comprising meeting and discussing, described front mould pin is embedded in and touches in platform, extends for being connected in series the positioning head of nut; Described rear mold comprises substrate and at least two pieces of rear mold pins of locating for nut, described substrate is provided with for holding the groove of positioning head and installation and its top nut, described at least two pieces of rear mold pins stretch out bottom portion of groove, the position on top is positioned at same plane, and to the distance of positioning head rear portion front mould pin with need the length of nut processing suitable.
Preferably, described at least two pieces of rear mold pins are that axial symmetry distributes, and the beeline between symmetrical two pieces of rear mold pins is needing between the internal diameter and outer electrical path length of nut processing.
Preferably, the length of described positioning head and external diameter and need the length of nut processing and internal diameter suitable.
With respect to prior art, the utility model comprises following beneficial effect: compare with conventional art, by the locating effect of two pieces of rear mold pins, in injection moulding process, can play fixation, and two pieces of preferred spacing designs of rear mold pin make it have better sealing, meet the sealing requirements of product.
Accompanying drawing explanation
Fig. 1 is the mould structure generalized section for pre-buried insert nut part of the utility model embodiment.
The specific embodiment
Below in conjunction with drawings and the embodiments, the utility model content is described in further detail.
Fig. 1 is the structural representation of the utility model embodiment, this schematic diagram is mould for the crash generalized section of structure division of pre-buried insert nut, it should be noted that, other mould that coordinates this mould structure to use in the utility model all can adopt conventional mould structure of the prior art, for example, form the mould structure of the product shell that embeds this nut.
As shown in Figure 1, front mould be one to the structure of meeting and discussing, wherein, middle right tiltedly dash area is front mould pin 2, and this front mould pin 2 comprises two parts, and first half is the positioning head 3 with nut, latter half is embedded in and touches in platform 1, length and the internal diameter of the length of this positioning head 3, external diameter and nut are suitable, and nut can be socketed thereon, are convenient to nut sleeve be connected on positioning head 3 and avoid being shifted up and down.
Rear mold is with two pieces of rear mold pins 5, this rear mold pin 5 is embedded among substrate 4, stretch out with the groove 7 that holds nut on top, these groove 7 spaces are more bigger than the size of nut, form a cavity, between front mould and rear mold, also leave the space that is used to form housing, when injection moulding, can make slurry be filled into wherein by the pre-buried inserts of this nut 4 within it.The top of this rear mold pin 5 is suitable with nut length to the distance of positioning head 3 rear portion front mould pins 2, and be all positioned on sustained height, when forward and backward mould crashes, nut is just fixed between two pieces of rear mold pin 5 tops and front mould pin 2, makes nut can not cause the problem that nut sinks, through hole moves down because of mobility and the pressure of plastics in injection moulding process.
In order to make it have better sealing, between internal diameter and outer electrical path length that the beeline between these two pieces of rear mold pins 5 is nut, the aperture that the later two pieces of rear mold pins 5 of formed product are caused does not communicate with screw, has effectively improved its sealing.
When injection moulding, first, front mould is separated with rear mold, and front mould exposes meeting and discussing, and nut is placed on; Then, front mould and rear mold are crashed, front mould just enters into the groove 7 of rear mold with the positioning head 3 of nut, outstanding groove 7 bottoms, two pieces of rear mold pin 5 tops, head on nut bottom, and nut and front mould are compressed, play fixation, between nut and groove 7, have certain space; Then, the injection machine in mould starts, and the slurry of moulding of fusing is filled in the gap of front mould and rear mold; Finally, mould slurry cooled and solidified, form the product structure with pre-buried insert nut, because the spacing between rear mold pin 5 is just large than nut internal diameter, the aperture that the later two pieces of rear mold pins 5 of formed product are caused does not communicate with screw, has effectively improved its sealing.Utilize pre-buried insert nut that this Mould Machining forms have error little, can in slip casting process, not occur that in original technical scheme, nut sinks, enter glue, move down the shortcomings such as through hole, product mass-energy is protected, and has improved the benefit of enterprise.
It should be noted that, select in the present embodiment length, shape of two pieces of rear mold pins 5 and pin etc., is all preference of the present utility model, and user can carry out certain change to rear mold pin 5 quantity, structure according to actual conditions.
The above; it is only the specific embodiment of the present utility model; but the protection domain of this utility model is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the variation that can expect easily or replacement, within all should being encompassed in protection domain of the present utility model.
Claims (3)
1. the mould structure for pre-buried insert nut, comprise front mould and rear mold, it is characterized in that, described front mould comprise for rear mold collide to meeting and discussing, touch platform (1) and front mould pin (2) described comprising meeting and discussing, described front mould pin (2) is embedded in and touches in platform (1), extends the positioning head (3) for being connected in series nut (6); Described rear mold comprises substrate (4) and at least two pieces of rear mold pins (5) of locating for nut (6), described substrate (4) is provided with for holding the groove (7) of positioning head (3) and installation and its top nut (6), described at least two pieces of rear mold pins (5) stretch out groove (7) bottom, the position on top is positioned at same plane, and to the distance of positioning head rear portion front mould pin (2) with need the length of nut processing (6) suitable.
2. the mould structure for pre-buried insert nut according to claim 1, it is characterized in that, described at least two pieces of rear mold pins (5) are axial symmetry distribution, and the beeline between symmetrical two pieces of rear mold pins (5) is needing between the internal diameter and outer electrical path length of nut processing (6).
3. the mould structure for pre-buried insert nut according to claim 1, is characterized in that, the length of described positioning head and external diameter and need length and the internal diameter of nut processing (6) suitable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420354539.2U CN203901645U (en) | 2014-06-30 | 2014-06-30 | Mold structure used for embedded insert nuts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420354539.2U CN203901645U (en) | 2014-06-30 | 2014-06-30 | Mold structure used for embedded insert nuts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203901645U true CN203901645U (en) | 2014-10-29 |
Family
ID=51775939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420354539.2U Expired - Fee Related CN203901645U (en) | 2014-06-30 | 2014-06-30 | Mold structure used for embedded insert nuts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203901645U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104626467A (en) * | 2015-01-26 | 2015-05-20 | 中山市美捷时包装制品有限公司 | Small-bore collision penetrating structure for mould |
-
2014
- 2014-06-30 CN CN201420354539.2U patent/CN203901645U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104626467A (en) * | 2015-01-26 | 2015-05-20 | 中山市美捷时包装制品有限公司 | Small-bore collision penetrating structure for mould |
| CN104626467B (en) * | 2015-01-26 | 2017-05-10 | 中山市美捷时包装制品有限公司 | Small-bore collision penetrating structure for mould |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141029 Termination date: 20190630 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |