CN105346023A - Injection mould capable of automatically cutting off side sprue in mould - Google Patents
Injection mould capable of automatically cutting off side sprue in mould Download PDFInfo
- Publication number
- CN105346023A CN105346023A CN201510825280.4A CN201510825280A CN105346023A CN 105346023 A CN105346023 A CN 105346023A CN 201510825280 A CN201510825280 A CN 201510825280A CN 105346023 A CN105346023 A CN 105346023A
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- China
- Prior art keywords
- injection mould
- side gate
- automatically
- excise
- cutting
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Classifications
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- 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
- B29C45/38—Cutting-off equipment for sprues or ingates
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention relates to an injection mould capable of automatically cutting off a side sprue in the mould. The injection mould comprises an injection mould body and a cutting piece. The injection mould body comprises a push-out mechanism. The lower end of the cutting piece serves as a fixed end fixedly arranged in a core fixing plate. The upper end of the cutting piece serves as a cutting-off end matching a groove formed in the connecting position of an inlet of the injection mould body and the side sprue, a centrosymmetric channel is arranged at the position, corresponding to the side sprue, in the cutting-off end, and the section shape of the channel matches that of the side sprue. The injection mould is simple in structure, ingenious in design, low in improvement cost and wide in adaptability; the procedure of cutting off the side sprue and pushing out a plastic part is completed at a time; and cutting-off efficiency is high, and the cutting-off effect is good.
Description
Technical field
The present invention relates to a kind of injection mould, more particularly, relate to a kind of injection mould that automatically can excise side gate in film.
Background technology
Injection mo(u)lding is injected in mould by melting plastics to have in the die cavity of required form, after pressurize, cooling curing, opens mould and ejected by the plastic of solidification, to obtain the method for products formed.Because injection molding forming method has, shaping expense is low, molding cycle is short, and forming process is simple and be easy to the feature such as plastic product of forming shape complexity, therefore manufactures field application at plastic very general.Side gate is due to easily manufactured, be widely used in injection mold, but after plastic parts moulding deviates from mould, side gate and plastic link together, usually by being manually separated with gate cutting by goods by instrument, therefore there are the problems and shortcomings that recruitment is many, cost is high, working strength is large in current enterprise.
Through retrieval, have the technical scheme carrying out improving for above-mentioned problem open, as China Patent No. ZL200910241884.9, June 16 2010 Shen Qing Publication day, invention and created name is: automatic in-mould edge gate cutting injection mould, this application case relates to a kind of plastic injection mold, particularly a kind of automatic in-mould edge gate cutting injection mould, comprise cover half, dynamic model, ejecting mechanism, connect guide pillar guide pin bushing and the pouring-head cutting device of dynamic model and cover half, wherein said pouring-head cutting device, comprise the multiple release link slide openings being positioned at injection-moulded plastic part side gate and running through fixed mold core and solid plate, run through multiple cutting knife slide openings of mavable module core, release link is provided with in release link slide opening, cutting knife is provided with in cutting knife slide opening, the end face of cutting knife and release link offsets, and release link and cover half fixed head are fixed, cutting knife supports core fixing plate by spring top, be provided with between solid plate with cover half fixed head and be separated stopping means, between solid plate and core fixing plate, be provided with parting damper.In die sinking process, utilize the mould opening force of injection machine to realize sprue channel and cut off, particular by cutting knife bottom spring force, make cutting knife confronting parts side gate do shearing motion, automatically injection-moulded plastic part is sheared with cast gate and be separated.But this application case complex structure, improving cost is high, shears and is separated not thoroughly, excision weak effect.
And for example China Patent No. ZL201320593191.8, authorized announcement date is on 04 30th, 2014, invention and created name is: a kind of injecting products and side gate automatic separating apparatus, this application case relates to a kind of injecting products and side gate automatic separating apparatus, comprise and being arranged on core for supporting the cavity mold insert of runner and side gate, described mold insert be provided with for accommodating side gate and portion of runner, one end of described cavity is connected to injection moulding chamber inlet, and described side gate aims at injection moulding chamber inlet by cavity; Described device also comprises below the runner that is arranged on and is positioned at outside mold insert, for ejecting the dome pin of runner from cavity, and the flat thimble be arranged on for separating of injecting products and side gate between injection moulding cavity and mold insert, described flat thimble is arranged on below injection moulding chamber inlet and side gate junction.This application case can only be applicable to push rod ejecting mechanism, flat thimble is utilized to be separated plastic and cast gate with the shearing between mold insert, need first to make plastic be separated with cast gate again plastic to be released, once can not realize the excision of cast gate and ejecting of plastic, and the solidifying material of one section of cast gate when being separated, also can be left on plastic, also thorough not.
Summary of the invention
1. invent the technical problem that will solve
The object of the invention is to overcome above-mentioned deficiency, provide a kind of injection mould that automatically can excise side gate in film, adopt technical scheme of the present invention, structure is simple, and design ingenious, improving cost is low, applicability is wide, once complete the operation of cutting side cast gate and release plastic, excision efficiency is high, and excises effective.
2. technical scheme
For achieving the above object, technical scheme provided by the invention is:
A kind of injection mould that automatically can excise side gate in film of the present invention, comprise injection mould body and section, described injection mould body comprises ejecting mechanism, the lower end of described section is the stiff end for being fixedly mounted in core fixing plate, the upper end of section is the excision end with the fit depressions being arranged on injection moulding chamber inlet and side gate junction, in this excision end, respective side gate location place is provided with a centrosymmetric passage, and the cross sectional shape of this passage and the cross sectional shape of side gate match.
Further, the upper surface of described passage is processed into the inclined plane with gradient, and the left surface that this inclined plane is held with excision forms cutting edge.
Further, the left surface of described excision end flushes with die cavity side.
Further, described ejecting mechanism is push rod ejecting mechanism.
Further, described ejecting mechanism is push piece plate ejecting mechanism.
Further, one-body molded on the end face of described excision end have the projection matched with the locating slot being arranged at groove bottom land place, and this projection is cone.
Further, described projection is tetragonous cone table.
3. beneficial effect
Adopt technical scheme provided by the invention, compared with existing known technology, there is following remarkable result:
(1) a kind of injection mould that automatically can excise side gate in film of the present invention, the lower end of its section is the stiff end for being fixedly mounted in core fixing plate, the upper end of section is the excision end with the fit depressions being arranged on injection moulding chamber inlet and side gate junction, in this excision end, respective side gate location place is provided with a centrosymmetric passage, the cross sectional shape of this passage and the cross sectional shape of side gate match, structure is simple, design ingenious, improving cost is low, only need to arrange one at injection moulding chamber inlet and side gate junction to cut into slices, because the passage of section exists the effect hindering and excise, release power when making it possible to utilization release plastic is disposable realizes the excision of side gate and the release of plastic, efficiency is high,
(2) a kind of injection mould that automatically can excise side gate in film of the present invention, the upper surface of its passage is processed into the inclined plane with gradient, and the left surface that this inclined plane is held with excision forms cutting edge, is convenient to be separated plastic and side gate, excises effective;
(3) a kind of injection mould that automatically can excise side gate in film of the present invention, its excision end left surface flushes with die cavity side, makes section be close to the excision of plastic sidewall, does not stay clout, excise effective, and the side gate being applicable to various shape plastic is separated automatically;
(4) a kind of injection mould that automatically can excise side gate in film of the present invention, its ejecting mechanism is push rod ejecting mechanism or push piece plate ejecting mechanism, applied widely, can be used for the various occasions such as push rod release, the release of push piece plate;
(5) a kind of injection mould that automatically can excise side gate in film of the present invention, one-body molded on the upper surface of its excision end have the projection matched with the locating slot being arranged at groove bottom land place, be convenient to excision end and stretch into groove inner position, and in order to location fit is smoothly with tight, this bump design is cone.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation that automatically can excise the injection mould embodiment 1 of side gate in film of the present invention;
Fig. 2 is a kind of partial enlarged drawing when automatically can excise A place matched moulds in the injection mould embodiment 1 of side gate in film of the present invention;
Fig. 3 is a kind of partial enlarged drawing when automatically can excise A place die sinking in the injection mould embodiment 1 of side gate in film of the present invention;
Fig. 4 of the present inventionly a kind ofly can excise the structural representation of cutting into slices in the injection mould of side gate in film automatically;
Fig. 5 is a kind of structural representation that automatically can excise the injection mould embodiment 2 of side gate in film of the present invention;
Fig. 6 is a kind of partial enlarged drawing when automatically can excise B place matched moulds in the injection mould embodiment 2 of side gate in film of the present invention.
Label declaration in schematic diagram: 11, fixed clamping plate; 12, cavity plate; 121, groove; 122, locating slot; 123, die cavity side; 2, plastic; 31, core fixing plate; 32, dynamic model backing plate; 33, cushion block; 34, moving clamping plate; 35, push piece plate; 4, sprue bush; 5, core; 61, sprue; 62, runner; 63, side gate; 71, cut into slices; 711, stiff end; 712, left surface; 713, passage; 714, inclined plane; 715, projection; 72, sprue puller; 73, main sprue puller; 74, push rod; 75, fixed head is released; 76, backing plate is released.
Detailed description of the invention
For understanding content of the present invention further, the present invention is described in detail by reference to the accompanying drawings.
Embodiment 1
Composition graphs 1, Fig. 2 and Fig. 3, a kind of injection mould that automatically can excise side gate in film of the present embodiment, comprise injection mould body, injection mould body comprises cover half part, dynamic model part, core 5, ejecting mechanism and flow passage system, cover half part comprises fixed clamping plate 11 and cover half cavity plate 12, and fixed clamping plate 11 and cavity plate 12 are bolted in aggregates, dynamic model part comprises core fixing plate 31, dynamic model backing plate 32, cushion block 33 and moving clamping plate 34, and core fixing plate 31, dynamic model backing plate 32, cushion block 33 and moving clamping plate 34 are bolted in aggregates, the lower end of core 5 is fixedly mounted on core fixing plate 31, matches with the die cavity be arranged in cover half cavity plate 12 in the upper end of core 5, and the upper end of core 5 and die cavity enclose the injection moulding cavity being configured for being formed plastic 2, flow passage system comprises the sprue 61 be arranged in sprue bush 4, runner 62 and side gate 63, in the present embodiment, ejecting mechanism is push rod ejecting mechanism, push rod ejecting mechanism comprises releases backing plate 76, release fixed head 75, main sprue puller 73, sprue puller 72 and push rod 74, release backing plate 76, release fixed head 75, main sprue puller 73, the concrete connection of sprue puller 72 and push rod 74 and the position of setting are that prior art has just repeated no more at this, difference is: comprise section 71 (shown in Figure 4), the lower end of section 71 is the stiff end 711 for being fixedly mounted in core fixing plate 31, the upper end of section 71 is and the excision end being arranged on the groove 121 of injection moulding chamber inlet with side gate 63 junction and matching, the left surface 712 of this excision end flushes with die cavity side 123, section 71 is made to be close to the excision of plastic 2 sidewall, do not stay clout, excise effective, and the side gate 63 being applicable to various shape plastic is separated automatically, in excision end, respective side cast gate 63 position is provided with a centrosymmetric passage 713, the cross sectional shape of this passage 713 and the cross sectional shape of side gate 63 match, structure is simple, design ingenious, improving cost is low, only needs to arrange one at injection moulding chamber inlet and side gate 63 junction and cuts into slices 71, due to the passage 713 existence obstruction of 71 and the effect of excision of cutting into slices, release power when making it possible to utilization release plastic 2 is disposable realizes the excision of side gate 63 and the release of plastic 2, and efficiency is high, and the upper surface of passage 713 is processed into the inclined plane 714 with gradient, the left surface 712 that this inclined plane 714 and excision are held forms cutting edge, is convenient to be separated plastic 2 and side gate 63, excises effective, groove 121 inner position is stretched into for the ease of excision end, one-body molded on the end face of excision end 712 have the projection 715 matched with the locating slot 122 being arranged at groove 121 bottom land place, and in order to make location fit smoothly with tight, this projection 715 is designed to cone, and in the present embodiment, projection 715 is tetragonous cone table.
When injection moulding, pressurize and cooling complete, dynamic, cover half is opened, push rod ejecting mechanism can realize projecting motion under injection machine push rod promotes, main sprue puller 73, sprue puller 72 and push rod 74 is driven to release by releasing backing plate 76, due to the passage 713 existence obstruction of 71 and the effect of excision of cutting into slices, automatically cut off with plastic 2 by side gate 63 and be separated, disposablely realize the excision of side gate 63 and the release of plastic 2, efficiency is high.
Embodiment 2
Composition graphs 5 and Fig. 6, the present embodiment a kind of can excise the basic structure of the injection mould of side gate in film automatically with embodiment 1, difference is: ejecting mechanism is push piece plate ejecting mechanism, push piece plate ejecting mechanism comprises releases backing plate 76, release fixed head 75, main sprue puller 73, push piece plate 35 and push rod 74, and releasing backing plate 76, the release concrete connection of fixed head 75, main sprue puller 73, push piece plate 35 and push rod 74 and the position of setting is that prior art has just repeated no more at this.
When injection moulding, pressurize and cooling complete, dynamic, cover half is opened, push piece plate ejecting mechanism can realize projecting motion under injection machine push rod promotes, push rod 74 and push piece plate 35 is driven to release by releasing backing plate 76, due to the passage 713 existence obstruction of 71 and the effect of excision of cutting into slices, automatically cut off with plastic 2 by side gate 63 and be separated, disposablely realize the excision of side gate 63 and the release of plastic 2, efficiency is high.
A kind of injection mould that automatically can excise side gate in film of the present invention, structure is simple, and design ingenious, improving cost is low, and applicability is wide, and once complete the operation of cutting side cast gate 63 and release plastic 2, excision efficiency is high, and excises effective.
Schematically above be described the present invention and embodiment thereof, this description does not have restricted, and also just one of the embodiments of the present invention shown in accompanying drawing, actual structure is not limited thereto.So, if those of ordinary skill in the art enlightens by it, when not departing from the invention aim, designing the frame mode similar to this technical scheme and embodiment without creationary, all should protection scope of the present invention be belonged to.
Claims (7)
1. one kind can be excised the injection mould of side gate in film automatically, comprise injection mould body, described injection mould body comprises ejecting mechanism, it is characterized in that: also comprise section (71), the lower end of described section (71) is the stiff end (711) for being fixedly mounted in core fixing plate (31), the upper end of section (71) is and the excision end being arranged on injection moulding chamber inlet and matching with the groove (121) of side gate (63) junction, in this excision end, respective side cast gate (63) position is provided with a centrosymmetric passage (713), the cross sectional shape of this passage (713) and the cross sectional shape of side gate (63) match.
2. a kind of injection mould that automatically can excise side gate in film according to claim 1, it is characterized in that: the upper surface of described passage (713) is processed into the inclined plane (714) with gradient, the left surface (712) that this inclined plane (714) is held with excision forms cutting edge.
3. a kind of injection mould that automatically can excise side gate in film according to claim 2, is characterized in that: the left surface (712) of described excision end flushes with die cavity side (123).
4. a kind of injection mould that automatically can excise side gate in film according to claim 3, is characterized in that: described ejecting mechanism is push rod ejecting mechanism.
5. a kind of injection mould that automatically can excise side gate in film according to claim 3, is characterized in that: described ejecting mechanism is push piece plate ejecting mechanism.
6. a kind of injection mould that automatically can excise side gate in film according to claim 4 or 5, it is characterized in that: one-body molded on the end face of described excision end (712) have the projection (715) matched with the locating slot (122) being arranged at groove (121) bottom land place, and this projection (715) is cone.
7. a kind of injection mould that automatically can excise side gate in film according to claim 6, is characterized in that: described projection (715) is tetragonous cone table.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510825280.4A CN105346023A (en) | 2015-11-24 | 2015-11-24 | Injection mould capable of automatically cutting off side sprue in mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510825280.4A CN105346023A (en) | 2015-11-24 | 2015-11-24 | Injection mould capable of automatically cutting off side sprue in mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105346023A true CN105346023A (en) | 2016-02-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510825280.4A Pending CN105346023A (en) | 2015-11-24 | 2015-11-24 | Injection mould capable of automatically cutting off side sprue in mould |
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| Country | Link |
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| CN (1) | CN105346023A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105965803A (en) * | 2016-07-01 | 2016-09-28 | 天津银宝山新科技有限公司 | Side gate breaking structure |
| CN106626250A (en) * | 2016-11-30 | 2017-05-10 | 重庆禾裕田精密电子有限公司 | Plastic injection mold capable of cutting off remnants in mold |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101733903A (en) * | 2008-11-21 | 2010-06-16 | 汉达精密电子(昆山)有限公司 | Hidden type gate insert mechanism |
| CN204546932U (en) * | 2015-04-11 | 2015-08-12 | 鸿利达模具(深圳)有限公司 | Injection mould runner separating mechanism |
-
2015
- 2015-11-24 CN CN201510825280.4A patent/CN105346023A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101733903A (en) * | 2008-11-21 | 2010-06-16 | 汉达精密电子(昆山)有限公司 | Hidden type gate insert mechanism |
| CN204546932U (en) * | 2015-04-11 | 2015-08-12 | 鸿利达模具(深圳)有限公司 | Injection mould runner separating mechanism |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105965803A (en) * | 2016-07-01 | 2016-09-28 | 天津银宝山新科技有限公司 | Side gate breaking structure |
| CN105965803B (en) * | 2016-07-01 | 2018-03-27 | 天津银宝山新科技有限公司 | A kind of side gate is disconnected to pour structure |
| CN106626250A (en) * | 2016-11-30 | 2017-05-10 | 重庆禾裕田精密电子有限公司 | Plastic injection mold capable of cutting off remnants in mold |
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Application publication date: 20160224 |
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| RJ01 | Rejection of invention patent application after publication |