CN204701078U - The improvement mold mechanism that injection molding pin gate enters to water - Google Patents
The improvement mold mechanism that injection molding pin gate enters to water Download PDFInfo
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- CN204701078U CN204701078U CN201520276835.XU CN201520276835U CN204701078U CN 204701078 U CN204701078 U CN 204701078U CN 201520276835 U CN201520276835 U CN 201520276835U CN 204701078 U CN204701078 U CN 204701078U
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- plate
- sprue bush
- pressing plate
- cavity
- water
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Abstract
The improvement mold mechanism that injection molding pin gate enters to water, it is by pressing plate (22), sprue bush (25), first screw (20) forms, the lower plane of described cavity plate (19) offers the Reentrant Cavity of moulded products (18), the upper plane of cavity plate (19) offers the step manhole be communicated with die cavity, two stage steps is arranged to by described step manhole, sprue bush (25) is installed in first order stepped hole, pressing plate (22) is installed in the step of the second level, described sprue bush (25) becomes to be slidably matched with the step manhole of cavity plate (19), the cone-shaped hole that pin gate enters to water is offered in the heart in sprue bush (25), the front end face of sprue bush (25) and the bottom surface of goods (18) are close to, first order step place in the step place of the rear end of sprue bush (25) and cavity plate (19) is close to.
Description
Technical field
The present invention relates to injection molding running gate system, is the improvement mold mechanism that injection molding pin gate enters to water.
Background technology
Pin gate is spot pouring mouth again, it is the feeding-passage that its a kind of sectional dimension is very little, there is larger pressure differential due to rear and front end in this cast gate, the shear rate of plastic melt can be increased largely and produce larger shear heat, thus cause the apparent viscosity of melt to decline, mobility increases, and is conducive to cavity fill.At present, the form of pin gate has multiple, it mainly contains following kind: direct-type, submarine, diamond type, multipoint mode, though above-mentioned pin gate can greatly degree increase the shear rate of plastic melt and produce larger shear heat, thus cause the apparent viscosity of melt to decline, mobility increases, be conducive to cavity fill, but due to injection pressure with in producing in enormous quantities, cast gate also easily weares and teares, after cast gate wearing and tearing, normally carrying out of impact injection, even solidifying material can rupture and clogging cast gate, again because existing mold pin gate and goods directly process on the mould cotton-wool in mould molding chamber, if pin gate position abrasion deformation or solidifying material break in cast gate, large inconvenient with extremely coming to the maintenance of mould.The time of simultaneously keeping in repair is also longer, brings extreme influence to the production of product.In order to overcome the deficiency of existing pin gate mould, combine mould one line design experiences for many years and the research to mould in person, spy provides following a kind of new technology to solve the problems referred to above.
Summary of the invention
The present invention is to provide the improvement mold mechanism that injection molding pin gate enters to water, as shown in the figure, it is arranged to split type by original injection molding pin gate part, namely the cavity bottom of original mould is processed into through hole, is then bumped into sprue bush (25) as shown in Figure 5 and pressing plate (22) in through-holes.Once plastics coagulate material breaks in running channel or can change gate portions fast after cast gate wearing and tearing in injection process, do not affect normal object of producing to reach.The improvement mold mechanism that injection molding pin gate enters to water, its beneficial effect is: it is conducive to impaired rear the loading onto fast in cast gate position aborning and prepares new mold gate components, to reach the object not affecting production, it is also of value to the manufacture of mould, installation, debugging are convenient, and the mold gate components at cast gate position can realize standardization and seriation simultaneously.The improvement mold mechanism that injection molding pin gate enters to water, solve existing pin gate mould once the impaired or solidifying material in cast gate position breaks at the problem of maintenance difficult in cast gate, solve the unmanageable problem of flow channel of mold gate components, solve cast gate impaired after, scrap the problem of monoblock cavity plate.The improvement mold mechanism that injection molding pin gate enters to water, it is characterized in that: it is by top clamping plate (1), backing plate (2), stripper plate (3), draw material pin (5), cover half guide pillar (21), cavity plate (19), first moving platen (9), second moving platen (17), dynamic model backing plate (16), mould pin (15), ejector retainner plate (12), thimble backing plate (13), Bottom clamp plate (14), spring (23), gag lever post (7), first screw (20), pressing plate (22), sprue bush (25) forms, the lower plane of described cavity plate (19) offers the Reentrant Cavity of moulded products (18), the upper plane of cavity plate (19) offers the step manhole be communicated with die cavity, described step manhole is offered as two stage steps, sprue bush (25) is installed in first order stepped hole, pressing plate (22) is installed in the step of the second level, described sprue bush (25) becomes to be slidably matched with the step manhole of cavity plate (19), the conicylindrical passage that pin gate enters to water is offered in the heart in sprue bush (25), the front end face of sprue bush (25) and the bottom surface of goods (18) are close to, first order step place in the step place of the rear end of sprue bush (25) and cavity plate (19) is close to, rear end face and the pressing plate (22) of sprue bush (25) are close to, described pressing plate (22) is arranged on circle, pressing plate (22) is provided with screw via hole, pressing plate is provided with taper hole in (22) in the heart, the end diameter of the taper hole on described pressing plate (22) is identical with the taper hole outside diameter on sprue bush (25), (22) offer trapezoidal runner with described pressing plate, the trapezoidal runner offered and screw via hole across position relationship, trapezoidal runner passes in the heart and extends to the edge of pressing plate (22) from pressing plate (22), described pressing plate (22) the first screw (20) is fastened in the second level stepped hole of cavity plate (19).(because the present invention improves cast gate position on original mold foundation, so the structure at other position, connection and shape are identical with existing mold, therefore just not describing)
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further described
Shown in figure
Fig. 1 is the sectional side elevation of original mould structure
Fig. 2 is the sectional side elevation of this mould first time die sinking
Fig. 3 is the sectional side elevation of this mould second time die sinking
Fig. 4 is the sectional side elevation of this mould third time die sinking
Fig. 5 is the enlarged drawing at E place in this die drawing 2
Fig. 6 is the sectional side elevation that this clamping cap (22) amplifies
Fig. 7 is the sectional side elevation that this die gate casing (25) amplifies
Fig. 8 is the top view of this clamping cap (22)
Fig. 9 is the electrode of original Mould Machining pin gate passage
In figure, numeral number represents respectively:
1---top clamping plate 2---backing plate 3---stripper plate
4---running gate system coagulates material 5---draw material pin
6---drawing the shape 7 of material pin (5) front end---gag lever post
8---core 9---first moving platen 10---thimbles
11---return bar 12---ejector retainner plate 13---thimble backing plates
14---Bottom clamp plate 15---mould pin 16---dynamic model backing plates
17---the second moving platen 18---goods 19---cavity plate
20---the first screw 21---cover half guide pillar 22---pressing plates
23---spring 24---ejector retainner plate guide pillar 25---sprue bush
26---packing ring 27---second screw 28---dynamic model guide pillars
29---the 3rd screw 30---the 4th screw
Detailed description of the invention:
The improvement mold mechanism that injection molding pin gate enters to water, the structure of original mould as shown in Figure 1, Fig. 2, Fig. 3, Fig. 4 is the mould structure after improving, this mould improves for the forming cavity of original mould and the position of entering to water of running gate system, original mould is that forming cavity and running gate system are set to a monoblock type, therefore there will be the following problem, the conical passage difficulty of first processing running gate system, former processing method adopts drill bit slightly to add taper hole, then Vehicle Processing electrode as shown in Figure 9, after electrode machining is good, cavity plate is taken on spark machine again and spark machined is carried out to taper hole.Second due to the forming recess on original cavity board and conical through-hole be that machine-shaping is out in one piece of overall template, if the conical through-hole Fracture of running gate system coagulates material or keeps in repair very difficult by the conical through-hole wearing and tearing rear mold that affects of injection pressure, even monoblock cavity plate all obtains and again manufactures, so bring extreme influence to normal production.In order to overcome the defect of original mould, so the present invention is arranged to cavity plate (19) and running gate system split type, namely after cavity plate (19), two stage steps hole is offered, two stage steps hole is communicated with the cavity bottom of moulded products (18), sprue bush (25) is installed in first order stepped hole, the front end face of sprue bush (25) and the bottom surface of goods (18) are close to, in the rear end of sprue bush (25), pressing plate (22) is installed, pressing plate (22) the first screw (20) is fastenedly connected in cavity plate (19), cone-shaped hole is offered in the heart in pressing plate (22) and sprue bush (25), the cone-shaped hole offered is the passage of running gate system pin gate.If after the solidifying material of this mold mechanism running gate system ruptures in the channel or conical through-hole weares and teares, sprue bush (25) and the pressing plate (22) of preparation can be changed rapidly, to reach the object again not manufacturing monoblock cavity plate (19), it can not affect production simultaneously.The production that sprue bush (25) in addition in the present invention and pressing plate (22) can realize standardization and seriation meets the mould use adopting pin gate to enter to water.Die sinking operating principle as it is identical with the die sinking operating principle of original mould, does not just describe here.
Claims (1)
1. the injection molding pin gate improvement mold mechanism that enters to water, it is characterized in that: it is by top clamping plate (1), backing plate (2), stripper plate (3), draw material pin (5), cover half guide pillar (21), cavity plate (19), first moving platen (9), second moving platen (17), dynamic model backing plate (16), mould pin (15), ejector retainner plate (12), thimble backing plate (13), Bottom clamp plate (14), spring (23), gag lever post (7), first screw (20), pressing plate (22), sprue bush (25) forms, the lower plane of described cavity plate (19) offers the Reentrant Cavity of moulded products (18), the upper plane of cavity plate (19) offers the step manhole be communicated with die cavity, described step manhole is offered as two stage steps, sprue bush (25) is installed in first order stepped hole, pressing plate (22) is installed in the step of the second level, described sprue bush (25) becomes to be slidably matched with the step manhole of cavity plate (19), the conicylindrical passage that pin gate enters to water is offered in the heart in sprue bush (25), the front end face of sprue bush (25) and the bottom surface of goods (18) are close to, first order step place in the step place of the rear end of sprue bush (25) and cavity plate (19) is close to, rear end face and the pressing plate (22) of sprue bush (25) are close to, described pressing plate (22) is arranged on circle, pressing plate (22) is provided with screw via hole, pressing plate is provided with taper hole in (22) in the heart, the end diameter of the taper hole on described pressing plate (22) is identical with the taper hole outside diameter on sprue bush (25), (22) offer trapezoidal runner with described pressing plate, the trapezoidal runner offered and screw via hole across position relationship, trapezoidal runner passes in the heart and extends to the edge of pressing plate (22) from pressing plate (22), described pressing plate (22) the first screw (20) is fastened in the second level stepped hole of cavity plate (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520276835.XU CN204701078U (en) | 2015-04-25 | 2015-04-25 | The improvement mold mechanism that injection molding pin gate enters to water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520276835.XU CN204701078U (en) | 2015-04-25 | 2015-04-25 | The improvement mold mechanism that injection molding pin gate enters to water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204701078U true CN204701078U (en) | 2015-10-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520276835.XU Expired - Fee Related CN204701078U (en) | 2015-04-25 | 2015-04-25 | The improvement mold mechanism that injection molding pin gate enters to water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204701078U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108621386A (en) * | 2017-03-24 | 2018-10-09 | 汉达精密电子(昆山)有限公司 | Multiple spot is into gluing mechanism |
-
2015
- 2015-04-25 CN CN201520276835.XU patent/CN204701078U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108621386A (en) * | 2017-03-24 | 2018-10-09 | 汉达精密电子(昆山)有限公司 | Multiple spot is into gluing mechanism |
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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: 20151014 Termination date: 20160425 |