CN217891699U - Injection mold convenient to drawing of patterns - Google Patents
Injection mold convenient to drawing of patterns Download PDFInfo
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- CN217891699U CN217891699U CN202222238879.6U CN202222238879U CN217891699U CN 217891699 U CN217891699 U CN 217891699U CN 202222238879 U CN202222238879 U CN 202222238879U CN 217891699 U CN217891699 U CN 217891699U
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Abstract
The utility model discloses an injection mold convenient for demolding, which relates to the technical field of injection molds and comprises a movable mold and a fixed mold which are mutually butted, a glue inlet system arranged on the movable mold and an ejection mechanism arranged on the fixed mold, wherein an upper mold core is fixedly arranged on the movable mold, a lower mold core is fixedly arranged on the fixed mold, the upper mold core and the lower mold core are mutually covered to form a mold cavity for molding a workpiece, the glue inlet system is butted and matched with the upper mold core, and the ejection mechanism is butted and matched with the lower mold core; the lower die core is provided with a workpiece profiling block, the workpiece profiling block comprises an annular part and a plurality of arc parts arranged on the annular part in a surrounding mode, the annular part is in butt joint fit with the ejection mechanism, the arc parts are provided with inserts for assisting the workpiece to be molded, and the inserts are splayed; the empty position of keeping away of this work piece of mode shaping that combines through mold insert and bellying piece for remove the mode that drives corresponding protruding structure and come the empty position of keeping away of shaping work piece through increasing the line position, the utility model discloses whole simple and practical.
Description
Technical Field
The utility model relates to an injection mold technical field specifically is an injection mold convenient to drawing of patterns.
Background
The mould is used for obtaining various moulds and tools of required workpieces by injection molding, blow molding, extrusion, die casting or forging forming, smelting, stamping and other methods in industrial production. In short, a mold is a tool used to make a shaped article, the tool being made up of various parts, with different molds being made up of different parts. The method realizes the processing of the appearance of an article mainly by changing the physical state of a formed material, and the article is simply called as an industrial parent. The injection mold is a tool for producing plastic products, generally, the injection mold consists of a movable mold and a fixed mold, and the movable mold and the fixed mold are closed to form a runner system and a mold cavity of the plastic products during injection molding. During injection molding, the mold is clamped on an injection molding machine, molten plastic is injected into the mold cavity and is cooled and molded in the mold cavity, meanwhile, the molten plastic is also cooled in the runner system to form runner system condensate, the movable mold and the fixed mold are separated after the plastic product is molded, the plastic product is ejected out of the mold cavity through the ejection system and leaves the mold, finally, the movable mold and the fixed mold are closed again to perform next injection molding, and the whole injection molding process is performed circularly.
As shown in a workpiece, the workpiece includes an annular portion 1', a plurality of connecting frames 2' arranged around the annular portion 1', the connecting frames 2' are arc-shaped, the connecting frames 2' are provided with clearance portions 3', and the bottom ends of the connecting frames 2' are closed, in the technical field of existing injection molds, when the type of the workpiece is injection molded, a protruding structure matched with the shape of the clearance portions 3' is generally arranged on a lower mold core, so as to form the clearance portions 3', but because the bottom ends of the workpiece connecting frames 2' are closed, when the mold is opened, the protruding structure and the workpiece need to be reasonably avoided, and the avoiding method generally includes connecting the protruding structure with a corresponding line, when the workpiece is formed, the protruding structure is driven by the line to enter a mold cavity, so that the clearance portions 3' are driven by the line to exit the mold cavity when the mold is formed, so that the protruding structure and the workpiece are reasonably avoided, so that the workpiece is conveniently demolded, but the corresponding line needs to be correspondingly designed to be enlarged, and the technical problem of not only need to be solved, but also needs to be increased.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an it is not enough to overcome above-mentioned condition, aims at providing the technical scheme that can solve above-mentioned problem.
An injection mold convenient for demolding comprises a movable mold and a fixed mold which are mutually butted, a glue inlet system arranged on the movable mold and an ejection mechanism arranged on the fixed mold, wherein an upper mold core is fixedly arranged on the movable mold, a lower mold core is fixedly arranged on the fixed mold, the upper mold core and the lower mold core are mutually covered to form a mold cavity for molding a workpiece, the glue inlet system is in butt joint fit with the upper mold core, and the ejection mechanism is in butt joint fit with the lower mold core;
be equipped with work piece profile modeling piece on lower mould benevolence, work piece profile modeling piece is including annular portion and encircle a plurality of circular arc portions of setting in annular portion, annular portion and ejection mechanism butt joint cooperation, be provided with the mold insert that is used for helping the work piece shaping in the circular arc portion, the mold insert is the splayed, the mold insert is including connecting axle and symmetrical connection at the epaxial mold insert piece of connecting, the mold insert piece is including the sliding part that connects gradually, connecting portion and fixed part, the sliding part is laminated with circular arc portion mutually, and sliding part and circular arc portion sliding fit, the bottom of sliding part is the cambered surface, be equipped with protruding piece in the circular arc portion, the top of protruding piece is the cambered surface, the lateral wall slope of protruding piece sets up, sliding part and protruding piece linking cooperation, connecting portion vertically docks in protruding piece, fixed part and last mould benevolence fixed connection.
As a further aspect of the utility model: the protruding block comprises a first connecting part, a second connecting part and a butt joint part which are sequentially connected, a first connecting surface, a second connecting surface and a third connecting surface which are respectively connected and matched with the first connecting part, the second connecting part and the butt joint part are arranged on the sliding part, the connecting part is arranged at the upper end of the third connecting surface, and the connecting part is longitudinally butted with the butt joint part.
As a further aspect of the present invention: the top of butt joint portion is the cambered surface, and the lateral wall of first linking portion, second linking portion and butt joint portion all inclines to set up.
As a further aspect of the present invention: the fixing part runs through the upper die core, a through hole matched with the connecting shaft is formed in the fixing part, and the fixing part is in abutting fit with the upper die core through the connecting shaft.
As a further aspect of the present invention: the upper die core is provided with a channel matched with the insert block and a mounting groove matched with the connecting shaft, and the mounting groove is communicated with the channel.
As a further aspect of the present invention: the annular part is provided with an ejection hole which is in butt joint fit with the ejection mechanism.
Compared with the prior art, the beneficial effects of the utility model are as follows:
the utility model discloses a mode shaping this work piece of mold insert and protruding piece combination keep away empty position, and the mold insert can not cause the interference to the work piece in the separation work piece, and the work piece is in the drawing of patterns, and protruding piece can not cause the interference to the work piece, for the mode of keeping away empty position that removes to drive corresponding protruding structure and come the shaping work piece through increasing the line position, the utility model discloses whole simple and practical can effectively reduce the input of cost moreover, is worth promoting.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
FIG. 1 is a schematic view of a workpiece configuration;
fig. 2 is a schematic structural diagram of the present invention;
FIG. 3 is a schematic structural view of an upper mold insert, a lower mold insert and an insert of the present invention;
FIG. 4 is a schematic structural view of the middle and lower mold cores and the mold insert of the present invention;
FIG. 5 is a schematic structural view of the middle and lower mold cores of the present invention;
fig. 6 is a schematic structural view of the insert of the present invention;
fig. 7 is a schematic structural view of an upper mold insert of the present invention.
The reference numerals and names in the figures are as follows:
1. moving the mold; 2. fixing a mold; 3. a glue feeding system; 4. an ejection mechanism; 5. loading a mold core; 6. a lower die core; 7. a workpiece contour block; 8. an annular portion; 9. a circular arc portion; 10. an insert; 11. a connecting shaft; 12. an insert block; 13. a sliding part; 14. a connecting portion; 15. a fixed part; 16. a raised block; 17. a first engagement portion; 18. a second engagement portion; 19. a butt joint part; 20. a first engagement face; 21. a second engagement face; 22. a third engagement face; 23. a through hole; 24. a channel; 25. mounting grooves; 26. and ejecting the hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 2-7, in an embodiment of the present invention, an injection mold facilitating demolding includes a movable mold 1 and a stationary mold 2 butted with each other, a glue feeding system 3 disposed on the movable mold 1, and an ejection mechanism 4 disposed on the stationary mold 2, wherein an upper mold core 5 is fixedly mounted on the movable mold 1, a lower mold core 6 is fixedly mounted on the stationary mold 2, the upper mold core 5 and the lower mold core 6 are mutually covered to form a mold cavity for molding a workpiece, the glue feeding system 3 is butted and matched with the upper mold core 5, and the ejection mechanism 4 is butted and matched with the lower mold core 6;
be equipped with work piece contour block 7 on lower mould benevolence 6, work piece contour block 7 is including annular portion 8 and encircle a plurality of arc portions 9 that set up on annular portion 8, annular portion 8 and ejection mechanism 4 butt joint cooperation, be provided with the mold insert 10 that is used for helping the work piece shaping on arc portion 9, mold insert 10 is the splayed, mold insert 10 is including connecting axle 11 and symmetrical connection mold insert piece 12 on connecting axle 11, mold insert piece 12 is including the sliding part 13 that connects gradually, connecting portion 14 and fixed part 15, sliding part 13 laminates with arc portion 9 mutually, and sliding part 13 and arc portion 9 sliding fit, the bottom of sliding part 13 is the cambered surface, be equipped with protruding piece 16 on the arc portion 9, the top of protruding piece 16 is the cambered surface, the lateral wall slope setting of protruding piece 16, sliding part 13 links up the cooperation with protruding piece 16, connecting portion 14 vertically docks in protruding piece 16, fixed part 15 and last mould benevolence 5 fixed connection.
In the above technical means, the present invention provides an insert 10 for assisting in forming a workpiece in a mold cavity, wherein the insert 10 is longitudinally butted to the mold cavity, specifically, the insert 10 is composed of two insert blocks 12 disposed in an inclined manner and a connecting shaft 11 for connecting the two insert blocks 12 disposed in an inclined manner, so that the insert 10 is in a splayed shape, the insert block 12 includes a sliding portion 13, a connecting portion 14 and a fixing portion 15, which are connected in sequence, and the sliding portion 13, the connecting portion 14 and the fixing portion 15 are integrally formed;
when the die is closed, the upper die core 5 drives the fixing part 15 fixedly connected with the upper die core to be butted with the die cavity, so that the whole insert 10 is longitudinally butted with the workpiece contour block 7 on the lower die core 6, the sliding part 13 slides downwards along the arc part 9 on the workpiece contour block 7, the lower end of the sliding part 13 is gradually jointed with the arc part 9, in the process, the upper end of the sliding part 13 is gradually jointed with the convex block 16 on the arc part 9, after the upper die core 5 and the lower die core 6 are completely covered, the lower end of the sliding part 13 is completely jointed with the arc part 9, the upper end of the sliding part 13 is completely jointed with the convex block 16, and the whole combination of the sliding part 13 and the convex block 16 is a convex structure for forming the workpiece clearance part 3';
when the die is split, the upper die core 5 drives the insert 10 to be wholly and longitudinally separated from the workpiece profiling block 7, when a workpiece is formed, the lower end of the sliding part 13 is obliquely and tightly abutted to the arc part 9, the upper end of the sliding part 13 is obliquely and tightly abutted to the protruding block 16, namely the inclined surface of the lower end of the sliding part 13 is matched with the arc surface of the arc part 9, the inclined surface of the upper end of the sliding part 13 is matched with the curve surface of the protruding block 16, and the connecting part 14 is longitudinally abutted to the abutting position of the upper end of the sliding part 13 and the protruding block 16, so that the clearance part 3 'of the workpiece is arranged into two parts which are respectively formed by the insert 10 and the protruding block 16, the insert 10 can realize longitudinal movement without interfering with the workpiece, and because the insert 10 is splayed, the inner wall of the sliding part 13 and the inner wall of the workpiece clearance part 3' are both inclined surfaces, and the bottom end of the sliding part 13 is a cambered surface, the insert 10 has good inclination to be separated from the workpiece, and cannot affect the workpiece;
when the workpiece is demoulded, the annular part 8 is ejected by the ejection mechanism 4, and because the top end of the convex block 16 is an arc surface and the side wall of the convex block 16 is obliquely arranged, the convex block 16 is matched with the inner wall of the workpiece clearance part 3' by an inclined surface, so that the workpiece has better drawing inclination and the workpiece demoulding is facilitated;
the utility model discloses a mold insert 10 and 16 mode shaping this work piece of combining of protruding piece keep away empty position 3', and mold insert 10 can not cause the interference to the work piece in the separation work piece, and the work piece is in the drawing of patterns, and protruding piece 16 can not cause the interference to the work piece, for the mode of keeping away empty position 3' that goes to drive corresponding protruding structure through increasing the line position and come the shaping work piece, the utility model discloses whole simple and practical can effectively reduce the input of cost moreover, is worth promoting.
The embodiment of the present invention provides an embodiment, the protruding block 16 includes a first linking portion 17, a second linking portion 18 and a butt portion 19 connected in sequence, the sliding portion 13 is provided with a first linking surface 20, a second linking surface 21 and a third linking surface 22 connected with the first linking portion 17, the second linking portion 18 and the butt portion 19 respectively, the connecting portion 14 is disposed at the upper end of the third linking surface 22, and the connecting portion 14 is vertically butted to the butt portion 19, when the workpiece is butted with the product copying block, the first linking surface 20 is butted on the first linking portion 17, the second linking surface 21 is butted on the second linking portion 18, the third linking surface 22 is butted on the butt portion 19, the connecting portion 14 is vertically butted on the third linking surface 22 and the butt portion 19, so that the empty avoiding portion 3' of the workpiece is set into two parts, and the insert 10 and the protruding block 16 are respectively molded, thereby the insert 10 can realize the vertical motion without interfering with the workpiece.
In the embodiment of the present invention, the top of the butt-joint portion 19 is a cambered surface, and the side walls of the first joining portion 17, the second joining portion 18 and the butt-joint portion 19 are all inclined.
In the embodiment of the present invention, the fixing portion 15 penetrates the upper mold core 5, the fixing portion 15 is provided with a through hole 23 matching with the connecting shaft 11, and the fixing portion 15 is tightly matched with the upper mold core 5 through the connecting shaft 11; the upper die core 5 is provided with a channel 24 matched with the insert block 12 and a mounting groove 25 matched with the connecting shaft 11, the mounting groove 25 is communicated with the channel 24, the insert block 12 is embedded into the channel 24, the insert block 12 is firmly fixed on the upper die core 5, the connecting shaft 11 abuts against the inner wall of the mounting groove 25, the insert 10 is integrally and further firmly fixed on the upper die core 5, and the design is simple and reasonable.
In the embodiment of the present invention, the annular portion 8 is provided with an ejection hole 26 which is matched with the ejection mechanism 4 in a butt joint manner.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Claims (6)
1. An injection mold convenient for demolding comprises a movable mold and a fixed mold which are mutually butted, a glue inlet system arranged on the movable mold and an ejection mechanism arranged on the fixed mold, wherein an upper mold core is fixedly arranged on the movable mold, a lower mold core is fixedly arranged on the fixed mold, the upper mold core and the lower mold core are mutually covered to form a mold cavity for molding a workpiece, the glue inlet system is in butt joint fit with the upper mold core, the ejection mechanism is in butt joint fit with the lower mold core, the injection mold is characterized in that,
be equipped with work piece profile modeling piece on lower mould benevolence, work piece profile modeling piece is including annular portion and encircle a plurality of circular arc portions of setting in annular portion, annular portion and ejection mechanism butt joint cooperation, be provided with the mold insert that is used for helping the work piece shaping in the circular arc portion, the mold insert is the splayed, the mold insert is including connecting axle and symmetrical connection at the epaxial mold insert piece of connecting, the mold insert piece is including the sliding part that connects gradually, connecting portion and fixed part, the sliding part is laminated with circular arc portion mutually, and sliding part and circular arc portion sliding fit, the bottom of sliding part is the cambered surface, be equipped with protruding piece in the circular arc portion, the top of protruding piece is the cambered surface, the lateral wall slope of protruding piece sets up, sliding part and protruding piece linking cooperation, connecting portion vertically docks in protruding piece, fixed part and last mould benevolence fixed connection.
2. An injection mold facilitating mold release according to claim 1, wherein the protrusion comprises a first engagement portion, a second engagement portion and a butt portion connected in sequence, the sliding portion is provided with a first engagement surface, a second engagement surface and a third engagement surface engaged with the first engagement portion, the second engagement portion and the butt portion, respectively, the connection portion is provided at an upper end of the third engagement surface, and the connection portion is longitudinally butted against the butt portion.
3. The injection mold facilitating demolding as claimed in claim 2, wherein the top end of the abutting portion is a cambered surface, and the first joining portion, the second joining portion and the side wall of the abutting portion are arranged obliquely.
4. The injection mold convenient to demold according to claim 1, wherein the fixing portion penetrates through the upper mold core, a through hole matched with the connecting shaft is formed in the fixing portion, and the fixing portion is in abutting fit with the upper mold core through the connecting shaft.
5. The injection mold convenient to demold according to claim 4, wherein the upper mold core is provided with a channel matched with the insert block and an installation groove matched with the connecting shaft, and the installation groove is communicated with the channel.
6. An injection mould for facilitating removal of a mould according to claim 1, wherein the annular portion is provided with ejection holes for abutting engagement with the ejection mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222238879.6U CN217891699U (en) | 2022-08-24 | 2022-08-24 | Injection mold convenient to drawing of patterns |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222238879.6U CN217891699U (en) | 2022-08-24 | 2022-08-24 | Injection mold convenient to drawing of patterns |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217891699U true CN217891699U (en) | 2022-11-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222238879.6U Active CN217891699U (en) | 2022-08-24 | 2022-08-24 | Injection mold convenient to drawing of patterns |
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| CN (1) | CN217891699U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116852654A (en) * | 2023-09-01 | 2023-10-10 | 潍坊正达实业有限公司 | Demoulding structure of injection mould |
-
2022
- 2022-08-24 CN CN202222238879.6U patent/CN217891699U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116852654A (en) * | 2023-09-01 | 2023-10-10 | 潍坊正达实业有限公司 | Demoulding structure of injection mould |
| CN116852654B (en) * | 2023-09-01 | 2024-01-26 | 潍坊正达实业有限公司 | Demoulding structure of injection mould |
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