CN111703024A - Shell mould - Google Patents
Shell mould Download PDFInfo
- Publication number
- CN111703024A CN111703024A CN202010611265.0A CN202010611265A CN111703024A CN 111703024 A CN111703024 A CN 111703024A CN 202010611265 A CN202010611265 A CN 202010611265A CN 111703024 A CN111703024 A CN 111703024A
- Authority
- CN
- China
- Prior art keywords
- insert pin
- mounting hole
- insert
- limiting
- shell
- 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.)
- Pending
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/2673—Moulds with exchangeable mould parts, e.g. cassette moulds
- B29C45/2675—Mounting of exchangeable mould inserts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14065—Positioning or centering articles in the mould
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention relates to the technical field of electronic equipment, and discloses a shell mold, which comprises a mold body and a plurality of insert pins arranged on the mold body, wherein: the die body comprises a bearing surface for bearing the shell and a plurality of mounting holes for mounting the insert pins; each insert pin is detachably arranged in the mounting hole, and the first end of each insert pin extends out of the mounting hole to one side of the bearing surface and forms a datum positioning point. The repair time is short after the benchmark positioning point in the shell mold is damaged, so that the production utilization rate and the production capacity of the shell mold are greatly improved.
Description
Technical Field
The invention relates to the technical field of electronic equipment, in particular to a shell mold.
Background
In the mobile phone industry, Mark (reference) points for identifying a dispenser are arranged on the inner side of a mobile phone shell, the dispenser performs subsequent dispensing after identifying the Mark points on the mobile phone shell, the Mark points on the mobile phone shell are strictly controlled, the acquaintance degree needs to reach more than 85% so as to meet the position precision requirement of the subsequent dispensing, and the Mark point structure on the inner side of the mobile phone shell is formed by injection molding of a shell mold. The structure of a datum locating point in a shell mold in the prior art is generally designed into an original retaining structure (namely, the datum locating point and a mold core integrated structure in the shell mold), when the datum locating point on the shell mold is abnormal in the production process, the repair process of the shell mold comprises stations such as welding, CNC (computer numerical control) processing boss, grinding machine processing boss, polishing and discharging, the abnormal repair time of the datum locating point in the shell mold at each time needs about 2 days, the repair time of the shell mold is long, and the production efficiency of a product is seriously influenced.
Disclosure of Invention
The invention provides a shell mould, wherein the repair time of a damaged reference positioning point in the shell mould is short, so that the production utilization rate and the production capacity of the shell mould are greatly improved.
In order to achieve the purpose, the invention provides the following technical scheme:
a shell mold, comprising a mold body and a plurality of insert pins mounted to the mold body, wherein:
the die body comprises a bearing surface for bearing the shell and a plurality of mounting holes for mounting the insert pins;
each insert pin is detachably arranged in the mounting hole, and the first end of each insert pin extends out of the mounting hole and faces one side of the bearing surface to form a datum positioning point.
The shell mold is used for preparing and forming a datum point on the inner side of the shell in an injection molding mode, and comprises a mold body and a plurality of insert pins, wherein the mold body is provided with mounting holes which are used for mounting the insert pins and correspond to the insert pins one by one, each insert pin is detachably mounted in the mounting hole, the first end of each insert pin extends out of the mounting hole and forms a datum locating point, and the datum locating point corresponds to a datum point formed in the shell one by one; in the casing mould that provides in this application, the benchmark setpoint adopts the form detachably of inlaying the needle to install in the mould body, it is the standard component as specific casing to inlay the needle, and it is the vulnerable part to inlay the needle, it can prepare in batches with reserve to inlay the needle, thereby benchmark setpoint in the casing mould damages the back, can directly dismantle the inlaying needle that damages and change the new inlaying needle, convenient operation and saved the repair time of casing mould greatly, thereby very big improvement casing mould production utilization rate and production productivity.
Preferably, the insert pin further comprises a limiting mechanism for limiting the insert pin along the extending direction of the mounting hole.
Preferably, the stopper mechanism includes a stopper portion formed at the insert pin.
Preferably, the stopper is formed at a second end of the insert pin, and the stopper is formed with a stopper surface facing the first end.
Preferably, the insert pin has a circular cross-section in a direction perpendicular to the central axis.
Preferably, the first end of the insert pin has a circular cross section in a direction perpendicular to the central axis, and the portion of the insert pin other than the first end has a square cross section in the direction perpendicular to the central axis.
Preferably, a limiting groove or a limiting protrusion is formed on the side surface of the limiting part, and a limiting protrusion matched with the limiting groove in the limiting part or a limiting groove matched with the limiting protrusion in the limiting part is formed on the side wall of the mounting hole.
Preferably, a plurality of first threaded holes parallel to the extending direction of the insert pin are formed in the limiting part of the insert pin, second threaded holes corresponding to the first threaded holes in a one-to-one mode are formed in the side wall of the mounting hole, and the insert pin and the side wall of the mounting hole are fixed through screws.
Preferably, the shell mold further comprises a fixing plate arranged on one side of the mold body, which is away from the bearing surface, and used for fixing the insert pin in the mounting hole.
Preferably, an annular protrusion arranged coaxially with the mounting hole is further formed on the bearing surface of the mold body.
Drawings
Fig. 1 is a schematic structural diagram of a shell mold according to an embodiment of the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
fig. 3 is a schematic cross-sectional structural view of a pin insert part in a shell mold according to an embodiment of the present invention.
Icon:
1-a mould body; 11-a bearing surface; 12-mounting holes; 2-inserting a pin; 21-a first end; 3-a limiting part; 31-a limiting surface; 4, fixing a plate; 5-annular protrusion.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, fig. 2 and fig. 3, the present invention provides a shell mold, including a mold body 1 and a plurality of insert pins 2 mounted on the mold body 1, wherein:
the die body 1 comprises a bearing surface 11 for bearing the shell and a plurality of mounting holes 12 for mounting the insert pins 2;
each insert 2 is detachably mounted in the mounting hole 12, and the first end 21 of each insert 2 extends out of the mounting hole 12 towards the bearing surface 11 side and forms a datum locating point.
The shell mold is used for preparing and forming datum points on the inner side of a shell in an injection molding mode, and comprises a mold body 1 and a plurality of insert pins 2, mounting holes 12 which are used for mounting the insert pins 2 and correspond to the insert pins 2 one by one are formed in the mold body 1, each insert pin 2 is detachably mounted in the mounting hole 12, a first end 21 of each insert pin 2 extends out of the mounting hole 12 to form datum locating points, and the datum locating points correspond to datum points formed in the shell one by one; in the casing mould that provides in this application, the benchmark setpoint adopts the form detachably of inlaying needle 2 to install in mould body 1, inlay needle 2 and be the standard component as specific casing, and inlay needle 2 and be the vulnerable part, it can prepare in batches with reserve to inlay needle 2, thereby benchmark setpoint in the casing mould damages the back, can directly dismantle the inlaying needle 2 that damages and change new inlaying needle 2, convenient operation has just saved casing mould's repair time greatly, thereby very big improvement casing mould production utilization rate and production productivity.
In one embodiment of the present invention, two mounting holes 12 are formed in the housing mold, and the two insert pins 2 are mounted in the two mounting holes 12, respectively. In the actual production process, the number and the positions of the mounting holes 12 in the shell mold can be set according to the actual requirements of the shell, and the number, the positions and the like of the mounting holes 12 are not particularly limited.
Specifically, the insert pin 2 further includes a limiting mechanism for limiting the insert pin 2 in the extending direction of the mounting hole 12.
In order to facilitate demolding of the injection molded shell, the insert pin 2 further comprises a limiting mechanism for limiting the insert pin 2 along the extending direction of the mounting hole 12, and the insert pin 2 is prevented from being directly separated from the mold body 1 from one side of the bearing surface 11 in the demolding process of the shell.
Specifically, the stopper mechanism includes a stopper portion 3 formed on the insert pin 2.
In one embodiment, as shown in fig. 3, the stopper portion 3 is formed at the second end of the insert 2, and the stopper portion 3 is formed with a stopper surface 31 facing the first end 21.
The stopper portion 3 is formed at the first end 21 of the insert pin 2, and is formed with a stopper surface 31 facing the first end 21, and after the insert pin 2 is mounted in the mounting hole 12, the stopper surface 31 abuts against the side wall of the mounting hole 12 to provide position restriction to the insert pin 2 along the extending direction of the mounting hole 12, and prevents the insert pin 2 from being separated from the mounting hole 12 in the direction in which the second end is directed to the first end 21.
In one embodiment, as shown in fig. 3, the insert pin 2 has a circular cross section in a direction perpendicular to the central axis.
In the above embodiment, the first end 21, the second end, and the portion between the second end and the first end 21 of the insert pin 2 are all circular in cross section in the direction perpendicular to the central axis, wherein the diameter of the cross section in the direction perpendicular to the central axis of the first end is smaller than the diameter of the cross section in the direction perpendicular to the central axis of the portion between the second end and the first end 21, and the diameter of the cross section in the direction perpendicular to the central axis of the portion between the second end and the first end 21 is smaller than the diameter of the cross section in the direction perpendicular to the central axis of the second end provided with the stopper portion; the manufacture of the insert 2 is facilitated by this design, and the insert 2 in this embodiment is manufactured as follows:
firstly, taking an insert pin 2 with the diameter of 2.5mm, wherein the diameter of the section of the second end of the insert pin 2 along the direction vertical to the central axis is larger than that of the section of the other part along the direction vertical to the central axis, processing the length of the insert pin 2 along the extension direction of the insert pin 2 into a preset length by using a grinding machine, and reserving the polishing amount of 0.02 mm;
secondly, putting the insert pin 2 into a polishing jig for polishing the side surface of the insert pin 2, and polishing the surface of one side of the first end 21 of the insert pin 2, which is far away from the second end, by using abrasive paste after the light of the abrasive paper with the model number of #1000 is saved, so that the surface of one side of the first end 21 of the insert pin 2, which is far away from the second end, achieves the effect of a mirror surface A3;
thirdly, the polished insert pins 2 are loaded into EDM (Electrical Discharge Machining) jigs, wherein one EDM jig can be loaded with a plurality of insert pins 2 according to requirements;
the fourth step is to process the first end 21 of the insert pin 2 so that the diameter of the cross section of the first end 21 in the direction perpendicular to the center axis is 1.5 mm.
All the sizes in the steps can be adjusted according to the actual production requirements so as to adapt to the actual requirements of products.
The insert pins 2 can be prepared in batches for standby through the steps, and the insert pins 2 in the shell die are timely replaced after being damaged, so that the repair time of the shell die is saved, and the productivity is improved.
In order to adapt to the pin inserting structure in the above embodiment, the mounting hole 12 in the die body 1 is configured to be a stepped structure, and includes a first accommodating space for accommodating a portion between the first end and the second end of the pin inserting and a second accommodating space for accommodating the second end of the pin inserting and the limiting portion, wherein a diameter of the first accommodating space in a direction perpendicular to an extending direction of the pin inserting is smaller than a diameter of the second accommodating space in the direction perpendicular to the extending direction of the pin inserting, a stepped surface facing the second accommodating space is formed between the first accommodating space and the second accommodating space, the pin is installed in the mounting hole from a side of the second accommodating space, and after the pin inserting is installed, the limiting surface of the limiting portion in the pin abuts against the stepped surface.
In another embodiment, the first end 21 of the insert 2 has a circular cross-section in a direction perpendicular to the central axis, and the portion of the insert 2 other than the first end 21 has a square cross-section in the direction perpendicular to the central axis.
In the above embodiment, the portion of the insert pin 2 other than the first end 21 may be processed into a square columnar structure having a square cross section in the direction perpendicular to the central axis, the square columnar structure may facilitate the position limitation in the mounting hole 12 in the circumferential direction of the insert pin 2, the portion of the insert pin 2 other than the first end 21 may have another shape in the cross section in the direction perpendicular to the central axis, and correspondingly, the mounting hole 12 of the die main body 1 may be formed in a shape corresponding to the insert pin 2, thereby facilitating the removable mounting of the insert pin 2 in the mounting hole 12.
Specifically, a limiting groove or a limiting protrusion is formed on the side surface of the limiting portion 3, and a limiting protrusion matched with the limiting groove in the limiting portion 3 or a limiting groove matched with the limiting protrusion in the limiting portion 3 is formed on the side wall of the mounting hole 12.
In one embodiment, the side surface of the limiting part 3 is formed with a limiting groove, and the side wall of the mounting hole 12 is formed with a limiting bulge corresponding to the limiting groove, and the limiting groove is matched with the limiting bulge so as to limit the insert pin 2 along the circumferential direction of the insert pin 2; in another embodiment, the side surface of the position-limiting part 3 is formed with a position-limiting protrusion, and the side wall of the mounting hole 12 is formed with a position-limiting groove corresponding to the position-limiting protrusion, and the position-limiting protrusion is engaged with the position-limiting groove so as to limit the insert pin 2 along the circumferential direction of the insert pin 2.
In one embodiment, the position-limiting portion 3 of the insert pin 2 is further formed with a plurality of first threaded holes parallel to the extending direction of the insert pin 2, the side walls of the mounting hole 12 are formed with second threaded holes corresponding to the first threaded holes one to one, and the insert pin 2 and the side walls of the mounting hole 12 are fixed by screws.
The insert pins 2 are fixed on the side walls of the mounting holes 12 through screws, when one insert pin 2 in the shell mold is damaged, the insert pin 2 can be only detached and replaced, and the fixing effect is better in the fixing mode.
The shell die provided by the embodiment of the invention also comprises a fixing plate 4 which is arranged on one side of the die body 1, which is far away from the bearing surface 11, and is used for fixing the insert pins 2 in the mounting holes 12, the mounting plate is matched with the limiting parts 3 of the insert pins 2, the insert pins 2 are limited in the mounting holes 12 along the extending direction of the insert pins 2, the fixing plate 4 prevents the insert pins 2 from falling out of the mounting holes 12, and the fixing plate 4 can be used for simultaneously fixing a plurality of insert pins 2 arranged on the die body 1, and is convenient to operate.
Specifically, the bearing surface 11 of the die body 1 is also formed with an annular protrusion 5 coaxially disposed with the mounting hole 12.
An annular protrusion 5 coaxially arranged with the mounting hole 12 is formed on the bearing surface 11 of the die body 1 so as to prepare a sunken platform matched with the annular protrusion 5 on the shell.
It will be apparent to those skilled in the art that various changes and modifications may be made in the embodiments of the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. The shell mold is characterized by comprising a mold body and a plurality of insert pins arranged on the mold body, wherein:
the die body comprises a bearing surface for bearing the shell and a plurality of mounting holes for mounting the insert pins;
each insert pin is detachably arranged in the mounting hole, and the first end of each insert pin extends out of the mounting hole and faces one side of the bearing surface to form a datum positioning point.
2. The shell mold according to claim 1, wherein the insert pin further comprises a limiting mechanism for limiting the insert pin in the extending direction of the mounting hole.
3. The housing mold according to claim 2, wherein the stopper mechanism includes a stopper portion formed on the insert pin.
4. The shell mold according to claim 3, wherein the stopper is formed at the second end of the insert pin, and the stopper is formed with a stopper surface facing the first end.
5. The housing die of claim 4, wherein the insert pin is circular in cross-section in a direction perpendicular to the central axis.
6. The housing mold according to claim 4, wherein the first end of the insert pin has a circular cross section in a direction perpendicular to the central axis, and a portion of the insert pin other than the first end has a square cross section in the direction perpendicular to the central axis.
7. The shell mold according to claim 4, wherein a limiting groove or a limiting protrusion is formed on a side surface of the limiting portion, and a limiting protrusion engaged with the limiting groove in the limiting portion or a limiting groove engaged with the limiting protrusion in the limiting portion is formed on the side wall of the mounting hole.
8. The shell mold according to claim 4, wherein the insert pin limiting portion is further formed with a plurality of first threaded holes parallel to the extension direction of the insert pin, the mounting hole side wall is formed with second threaded holes corresponding to the first threaded holes one to one, and the insert pin and the mounting hole side wall are fixed by screws.
9. The shell mold according to claim 1, further comprising a fixing plate disposed on a side of the mold body facing away from the bearing surface for fixing the insert pin in the mounting hole.
10. The shell mold of claim 1, wherein the bearing surface of the mold body further defines an annular protrusion disposed coaxially with the mounting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010611265.0A CN111703024A (en) | 2020-06-29 | 2020-06-29 | Shell mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010611265.0A CN111703024A (en) | 2020-06-29 | 2020-06-29 | Shell mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111703024A true CN111703024A (en) | 2020-09-25 |
Family
ID=72543742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010611265.0A Pending CN111703024A (en) | 2020-06-29 | 2020-06-29 | Shell mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111703024A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102700061A (en) * | 2012-04-27 | 2012-10-03 | 肇庆理士电源技术有限公司 | Pin, mould core and mould for injection molding of battery cover |
| CN207206172U (en) * | 2017-08-29 | 2018-04-10 | 重庆龙阳塑胶模具有限公司 | Pin is cylindrical uses fixture for one kind mill |
| CN208788946U (en) * | 2018-09-13 | 2019-04-26 | 东莞景欣塑胶制品有限公司 | One kind can guarantee Mark point machining profile clearly mould structure |
-
2020
- 2020-06-29 CN CN202010611265.0A patent/CN111703024A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102700061A (en) * | 2012-04-27 | 2012-10-03 | 肇庆理士电源技术有限公司 | Pin, mould core and mould for injection molding of battery cover |
| CN207206172U (en) * | 2017-08-29 | 2018-04-10 | 重庆龙阳塑胶模具有限公司 | Pin is cylindrical uses fixture for one kind mill |
| CN208788946U (en) * | 2018-09-13 | 2019-04-26 | 东莞景欣塑胶制品有限公司 | One kind can guarantee Mark point machining profile clearly mould structure |
Non-Patent Citations (2)
| Title |
|---|
| 吴泊良: "《塑料成型工艺与模具设计》", 31 December 2011, 国防工业出版社 * |
| 许红伍: "《塑料模具设计简明教程》", 31 August 2017, 北京理工大学出版社 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107443632B (en) | Injection mold insert machining method, insert and clamp for machining insert | |
| CN110785011B (en) | Forming processing method of PCB with ultra-long clamping groove | |
| CN105345987B (en) | A kind of manufacture method of mobile phone center and a kind of mobile phone center | |
| CN111703024A (en) | Shell mould | |
| CN210435318U (en) | Casting mold for producing special-shaped castings | |
| CN108907615B (en) | Processing method of middle frame assembly, middle frame assembly and electronic device | |
| CN107414427B (en) | Processing method of integral ox horn submerged rubber mouth electrode | |
| CN103331627A (en) | Fixing device for electrode batch processing | |
| CN113118416A (en) | Low-pressure casting process for tire mold capable of preventing pattern deformation | |
| CN107984161A (en) | A kind of processing method of high frequency box body inner waveguide chamber | |
| WO2007049133A1 (en) | Assembly fixture and method for machining injection mold tooling | |
| CN106944793B (en) | A kind of processing method of elongated plate part | |
| CN114603786A (en) | Distribution box shell mold | |
| CN110142391B (en) | Straight water channel mold structure and processing method thereof | |
| CN220008634U (en) | Injection mold and part with position identification points | |
| CN107770985B (en) | Shell machining method, shell and mobile terminal | |
| CN112936768A (en) | Precision machining forming die for high-precision miniature power transmission ring process bushing | |
| CN201516461U (en) | Split type convex and concave die of micropore fine blanking | |
| CN110814316B (en) | Mold core insert for mold, mold and machining process of mold | |
| CN213052281U (en) | Spinning mould with novel structure | |
| CN219727023U (en) | Mould core positioning mechanism | |
| CN218947559U (en) | Tool for pressing bearing into motor shell | |
| CN215151465U (en) | Optical lens mould for preventing eccentricity | |
| CN111136176B (en) | Stamping die wedge processing method | |
| CN106945226B (en) | Press line station device and method for producing a press line station device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 201210 Building 1, 399 Keyuan Road, Zhangjiang High Tech Park, Pudong New Area, Shanghai Applicant after: Huaqin Technology Co.,Ltd. Address before: 201210 Building 1, 399 Keyuan Road, Zhangjiang High Tech Park, Pudong New Area, Shanghai Applicant before: Huaqin Technology Co.,Ltd. Address after: 201210 Building 1, 399 Keyuan Road, Zhangjiang High Tech Park, Pudong New Area, Shanghai Applicant after: Huaqin Technology Co.,Ltd. Address before: 201210 Building 1, 399 Keyuan Road, Zhangjiang High Tech Park, Pudong New Area, Shanghai Applicant before: HUAQIN TELECOM TECHNOLOGY Co.,Ltd. |
|
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200925 |