CN1891432A - Automatic-cut waste material injection mould - Google Patents
Automatic-cut waste material injection mould Download PDFInfo
- Publication number
- CN1891432A CN1891432A CN 200510035745 CN200510035745A CN1891432A CN 1891432 A CN1891432 A CN 1891432A CN 200510035745 CN200510035745 CN 200510035745 CN 200510035745 A CN200510035745 A CN 200510035745A CN 1891432 A CN1891432 A CN 1891432A
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- waste material
- automatic
- forming mold
- injection forming
- cut waste
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Abstract
This invention discloses an injection molded die for automatically cutting scraps used in producing injection products including a fixed mold, a moving mold and a cutting unit, in which, said fixed mold is matched with the moving mold to form a cavity corresponding to the injection product and a runner conducting to the fixed mold or the moving mold, said cutting unit includes a cutting plate set close to the cavity and extending into the runner after molding a product to cut the scraps connected with the product along the edge of the cavity, said die can cut the scraps in the runner and separates them from the product by the cutting unit before the product is finished and taken out so as to avoid separating products from runners artificially to reduce production time and cost.
Description
[technical field]
The invention relates to a kind of injection forming mold, but especially about a kind of injection forming mold of automatic-cut waste material.
[background technology]
Plastic process normally plastic grain is heated to fluid state and is shaped to required product by mould by injection technique.Because of plastics easy-formation, light weight, rich color, beautiful and applicable, be widely used in the products such as electronics, automobile, motor, electrical equipment, instrument, instrument, household electrical appliances and communication, its application is just constantly expanded, and mould is a visual plant of producing plastic products.The development of the development direct relation plastics industry of mould.
When the utilization injection machine manufactures a product, employed mould must be according to designed product-forming and size thereof, a plurality of die cavities corresponding to shape of product are set on mould, on mould, mold the runner or the running channel that communicate with each die cavity again, after this mould of is installed on injection machine, can utilize the fusion of injection machine micelle for after the liquid state, cooperate ejecting mechanism sizing material to inject each die cavity of mould through runner or running channel, and riddle in the die cavity fully, can mold complete product, after treating the sizing material sclerosis in the die cavity, can give die sinking and take out product by the mould.
Owing to still be connected with the sizing material at waste material-runner or running channel place respectively via the product that is taken out in the mould, therefore, must relend the worker that helps others cooperates cutter product and waste material to cut off, begin positively to make the product that use can be provided, so in this part processing procedure, the special fixture that need cut waste material and cut auxiliary equipment such as board, and need configuration corresponding operating personnel, this processing procedure labour intensity is big, and production efficiency is low, has deficiencies such as cost height and production cycle length.Portioned product as being provided with relevant projective structure near the cast gate, makes the less instrument of cutting that causes in space, the place of cutting to locate operation or can't repair sanction neatly in this place of at this because of the particularity of structure.In addition, it adopts manually-operated, and it is bigger that product quality is influenced by human factor, and stability is not high.
In the prior art, mould with pin point gate can be broken cast gate by force when the demoulding, and reduces the operation of back segment aritificial cut-off waste material.So, development along with electronic products such as mobile phones, the surface requirements of portioned product is higher, some opaque products particularly, it requires the goods both sides all not have gate vestiges, and its particularity causes some product must adopt side cast gate mode when design, the some of them product is because of the specific (special) requirements of products material and structure, as flaky texture, point advances to water to satisfy the complete filling of plastics, directly advances to water and then must carry out above-mentioned back segment waste material and cut operation.
[summary of the invention]
In view of foregoing, but be necessary to provide a kind of injection forming mold of automatic-cut waste material.
A kind of injection forming mold of automatic-cut waste material, in order to make injection-molded item, it comprises a cover half, a dynamic model and a blank mechanism.This cover half and dynamic model cooperate the die cavity that forms at least one corresponding injection-molded item shape, and above-mentioned cover half or dynamic model are provided with the runner that communicates with above-mentioned die cavity.This material cutting mechanism comprises the blank sheet, and it is near the die cavity setting and stretch into the waste material that links to each other with goods along the cut-out of die cavity edge in the runner behind product molding.
But the molded mould of Wang of described automatic-cut waste material cuts waste material and has overcome the prior art waste material difficulty that comes off by automatic cutoff mechanism is set, rely on craft or the manipulator low and quality of efficient that cuts waste material to be subjected to the big deficiency that waits of operator's factor affecting, it is before mould taking-up goods are finished and moved back to goods, automatically cut off and separate by go ahead of the rest waste material and the goods at runner place of material cutting mechanism, goods have not had the cast gate waste material after taking out, really reach one-shot forming, the automaticity height, thereby exempt the operation of artificial Separation Product and runner waste material, alleviate working strength of workers, improved labor productivity.And because of unartificial Separation Product and runner, the quality of product is eliminated by operator's factor affecting substantially, homogeneity of product and quality height.
[description of drawings]
Fig. 1 is the structural representation of the injection forming mold preferred embodiment of automatic-cut waste material of the present invention;
Fig. 2 is the structural representation of waste material cutting mechanism of the injection forming mold preferred embodiment of automatic-cut waste material of the present invention;
Fig. 3 be automatic-cut waste material of the present invention the molded mould preferred embodiment of Wang move back the mould schematic diagram;
Fig. 4 is that the product of the injection forming mold preferred embodiment of automatic-cut waste material of the present invention ejects schematic diagram.
[specific embodiment]
Below enumerate the structure that preferred embodiment illustrates the injection forming mold of this automatic-cut waste material.
See also Fig. 1, preferred embodiment of the present invention discloses a kind of injection forming mold of automatic-cut waste material, and it mainly comprises cover half 1, solid plate 2, dynamic model 3, moving platen 4, mould pin 5, material cutting mechanism 6 and ejecting mechanism 7.Wherein cover half 1 passes through guide rod 8 aligned fit with dynamic model 3, material cutting mechanism 6 be used for after goods are finished and move back waste material 93 (Fig. 3 with reference to) that mould takes out before the goods goods 91 in advance (Fig. 3 with reference to) and runner 92 places automatically cut-out separate, ejecting mechanism 7 moves between mould pin 5, is used for ejecting after the die sinking waste material 93 at goods 91 and runner 92 places.
One surface of cover half 1 is provided with a plurality of profiles 10 corresponding to goods 91 1 surface configurations, a horn-like through hole 11 that connects is offered at the middle part, be connected by a plurality of flutings 12 between this horn-like through hole 11 and the profile 10, and the cast gate that a plurality of flutings 12 and a plurality of profile 10 connecting places all design according to goods 91 shapes and material behavior thereof (indicating), a plurality of flutings 12 are close to profile 10 with a plurality of profile 10 connecting places and are further offered a rectangular slot 13, another surface of rectangular slot 13 is provided with a plurality of circular holes 14 that connect with rectangular slot 13 relatively, and this cover half 1 also is provided with the cylindric through hole 15 of perforation upper and lower surface in order to cooperate with the guide rod 8 of mould.
Moving platen 4 also is a tabular metallic plate, its middle part is provided with a jogger hole 41 that runs through moving platen 4, the marginal portion installs and fixes mould pin 5, mould pin 5 offers through hole 51 and gong hole 52, wherein through hole 51 is in order to cooperate with the guide pillar 8 of mould, and gong hole 52 cooperates gong bolt 53 to be mounted on mould pin 5 by dynamic model 3.
Please in the lump with reference to Fig. 2, material cutting mechanism 6 is installed on cover half 1 and the solid plate 2, it comprises all tablets 61 and a push rod 62 that is connected with blank sheet 61 and a back-moving spring 63, this blank sheet 61 is a laminated structure, the rectangular slot 13 of its cross section and cover half 1 and dynamic model 3 and 33 cross section are consistent, these blank sheet 61 middle and lower parts have a through hole 610, and the naturally linking consistent of the shape of this through hole 610 with the cast gate of mould, its common both-side opening varies in size, less near die cavity 90 1 sides, and the side that links to each other with runner 92 is bigger, and the openings of sizes difference of through hole 610 both sides makes the smaller opening place form a cutting edge.Push rod 62 middle parts are provided with an annular protruding rib 620, and the bottom 222 of the diameter of this annular protruding rib 620 and stepped hole 22 is suitable.Back-moving spring 63 is sheathed on above-mentioned push rod 62.After this material cutting mechanism 6 is installed in cover half 1 and solid plate 2, annular protruding rib 620 is positioned at the bottom 222 of the stepped hole 22 of solid plate 1, spring 63 is sheathed on push rod 62 and between annular protruding rib 620 and cover half 1, the one end is resisted against cover half 1, the other end is resisted against annular protruding rib 620, and the annular protruding rib 620 that makes push rod 62 is replaced the stage portion of stepped hole 22, at this moment, still there is certain distance push rod 62 bottoms apart from circular hole 14 bottoms, blank sheet 61 then is positioned at the rectangular slot 13 and 33 of cover half 1 and dynamic model 3, and the through hole 610 of blank sheet 61 is connected with cast gate, and also there is certain distance blank sheet 61 bottoms apart from rectangular slot 33 bottoms of dynamic model 3.Move downward by promoting push rod 62 drive blank sheets 61, the neat in edge that the cutting edge of blank sheet 61 promptly can runner waste material 93 (Fig. 3 with reference to) is close to goods 91 is cut off, and returning back to the home position subsequently under the elastic-restoring force effect of back-moving spring 63 is the stage portion that annular protruding rib 620 is replaced solid plate 2 stepped holes 22.
Ejecting mechanism 7 moves between mould pin 5, and it comprises push rod 70, backing plate 71, ejector pin retaining plate 72, push rod 73 and sprue puller 74.Push rod 70 can pass the jogger hole 41 of moving platen 4 and freely-movable in it, backing plate 71 is connected with push rod 70, ejector pin retaining plate 72 is fixedly installed in backing plate 71, push rod 73 1 ends are mounted on ejector pin retaining plate 72, the other end is used to die sinking and ejects goods 91, one end of sprue puller 74 also is fixed in ejector pin retaining plate 72, the relative strong off line structure 741 of other end setting " Z " font, it can be pulled out in runner by waste material 93 when die sinking, and can eject by waste material 93 when ejecting goods 91 subsequently.
During moulded products, moving platen 4 is fixedly mounted on Wang and moulds on the moving plate (figure does not show) of equipment, solid plate 2 is mounted on deciding on the plate (figure does not show) of injection-moulding device again, its shaping work order: at first cover half 1 and dynamic model 3 guide matched moulds down in guide rod 8, and cover half 1 cooperates the runner 92 that constitutes a plurality of die cavities 90 and communicate with die cavity 90 with dynamic model 3; Next is injection, and plastics enter die cavity 90 through runner under liquid state, be full of die cavity 90 until plastics, and the plastics solidification of filling is shaped to goods 91; Be blank once more, push rod 62 waits effect down at cylinder (figure do not show), thereby promotes the cutting knife 61 cut-out cast gates that move, and product 91 is separated fully with waste material 93, and product 91 is with after waste material 93 separates, and push rod 62 is return the home position under the effect of back-moving spring 63; Die sinking then please refer to Fig. 3, and dynamic model 3 drives goods 91 and leaves cover half 1, thereby pulls out runner 92 greater than the retention force waste material 93 of 92 pairs of waste materials 93 of runner because of the pulling force of 741 pairs of waste materials 93 of strong off line structure of sprue puller 74; Be that product 91 and waste material 93 eject at last, please refer to Fig. 4, ejecting mechanism 7 is upwards ejection under the effect of push rod 70, and a plurality of push rods 73 and sprue puller 74 upwards eject respectively, thereby goods 91 and waste material 93 automatic molds 3 are come off, and it can take away or fall automatically by artificial or manipulator.Matched moulds can carry out another manufacture process.
Be appreciated that, the injection forming mold of automatic-cut waste material of the present invention is not limited to promote push rod 62 downwards and cuts off goods 91 and waste material 93, also but annular protruding rib 620 is located at the position of close slightly blank sheet 61, it is resisted against the upper surface of cover half 1 by back-moving spring 63 , and the core-pulling mechanism pulling blank sheet 61 by injection-moulding device cuts off goods 91 and waste material 93.And the blank sheet of the injection forming mold of automatic-cut waste material of the present invention also can be a laminar blade, and it stretches into the waste material that cut-out links to each other with goods in the runner behind product molding.In addition, material cutting mechanism 6 of the present invention also can be arranged at dynamic model 3.
Claims (11)
1. the injection forming mold of an automatic-cut waste material; in order to make injection-molded item; it comprises a cover half, a dynamic model; this dynamic model cooperates the die cavity that forms at least one corresponding injection-molded item shape with above-mentioned cover half; and above-mentioned cover half or dynamic model are provided with the runner that communicates with above-mentioned die cavity; it is characterized in that: the injection forming mold of this automatic-cut waste material also comprises a blank mechanism; it comprises all tablets, and this blank sheet is near the die cavity setting and stretch into the waste material that links to each other with goods along the cut-out of die cavity edge in the runner behind product molding.
2. the injection forming mold of automatic-cut waste material as claimed in claim 1, it is characterized in that: this material cutting mechanism comprises the push rod that all tablets fix, and drives the motion of blank sheet by push rod.
3. the injection forming mold of automatic-cut waste material as claimed in claim 2, it is characterized in that: cover half and dynamic model are close to die cavity and are provided with rectangular slot, and above-mentioned blank sheet is placed in this rectangular slot and can moves in rectangular slot.
4. the injection forming mold of automatic-cut waste material as claimed in claim 3, it is characterized in that: cover half or dynamic model are provided with the circular hole that communicates with its rectangular slot, and the push rod of above-mentioned material cutting mechanism cooperates with this circular hole.
5. the injection forming mold of automatic-cut waste material as claimed in claim 4, it is characterized in that: the injection forming mold of this automatic-cut waste material comprises a solid plate, above-mentioned cover half is fixedly installed in this solid plate.
6. the injection forming mold of automatic-cut waste material as claimed in claim 5, it is characterized in that: circular hole is arranged at cover half, is provided with a stepped hole corresponding to this circular hole position on the solid plate, and straight ` is big than top in its underpart.
7. the injection forming mold of automatic-cut waste material as claimed in claim 6, it is characterized in that: this push rod is provided with annular protruding rib, this material cutting mechanism comprises that further one is sheathed on the back-moving spring of push rod, after push rod places circular hole, annular protruding rib is positioned at stepped hole, spring one end is replaced cover half, and an end is replaced annular protruding rib and burr shape fin is resisted against the stage portion of stepped hole.
8. as the injection forming mold of claim 2 or 3 or 7 described automatic-cut waste materials, it is characterized in that: the cross section of this blank sheet is consistent with the cross section of rectangular slot, and its middle part has a through hole to be communicated with die cavity and runner.
9. the injection forming mold of automatic-cut waste material as claimed in claim 8, it is characterized in that: this through hole is connected the cast gate that forms mould naturally with runner, and this through hole one side opening is big, and a side opening is little.
10. the injection forming mold of automatic-cut waste material as claimed in claim 1, it is characterized in that: the injection forming mold of this automatic-cut waste material advances one one and comprises an ejecting mechanism.
11. the injection forming mold of automatic-cut waste material as claimed in claim 10 is characterized in that: this ejecting mechanism comprises in order to eject goods system push rod and in order to break away from and to eject the sprue puller of waste material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510035745 CN1891432A (en) | 2005-07-01 | 2005-07-01 | Automatic-cut waste material injection mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510035745 CN1891432A (en) | 2005-07-01 | 2005-07-01 | Automatic-cut waste material injection mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1891432A true CN1891432A (en) | 2007-01-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510035745 Pending CN1891432A (en) | 2005-07-01 | 2005-07-01 | Automatic-cut waste material injection mould |
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| CN (1) | CN1891432A (en) |
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100230849A1 (en) * | 2009-03-13 | 2010-09-16 | Shenzhen Futaihong Precision Industry Co., Ltd. | Cutter |
| CN101979235A (en) * | 2010-10-18 | 2011-02-23 | 昆山乙盛机械工业有限公司 | Male die oil cylinder thimble die internal cutting |
| US20110171338A1 (en) * | 2010-01-08 | 2011-07-14 | Han Dongchul | Apparatus and method for molding compound |
| CN102476430A (en) * | 2010-11-29 | 2012-05-30 | 浙江天翀车灯集团有限公司 | Automatic cutting mechanism of automobile reflector die |
| CN102717480A (en) * | 2011-04-12 | 2012-10-10 | 苏州腾行精密模具有限公司 | Mold convenient for removing waste materials in runners |
| CN103358484A (en) * | 2012-11-09 | 2013-10-23 | 广州现代塑料有限公司 | Injection mould capable of being easily de-molded |
| CN103847075A (en) * | 2012-11-29 | 2014-06-11 | 汉达精密电子(昆山)有限公司 | Structure capable of realizing automatic removing of gate and runner excess material of mould |
| CN104210069A (en) * | 2014-08-29 | 2014-12-17 | 苏州正豪塑胶电子有限公司 | Directly-cutting injection mold |
| CN104339583A (en) * | 2014-09-26 | 2015-02-11 | 无锡优萌模塑制造有限公司 | Forming structure of injection moulding machine |
| CN104852533A (en) * | 2015-06-02 | 2015-08-19 | 安徽飞翔电器有限公司 | Large cast aluminum rotor machining device with mold unloading function |
| CN105269773A (en) * | 2015-11-17 | 2016-01-27 | 重庆持恒模具有限公司 | Automatic water opening cutting die |
| CN105538616A (en) * | 2015-12-10 | 2016-05-04 | 昌辉精密模具（黄山）有限公司 | Method for realizing automatic cutting of disc gate during mould ejection |
| CN105619714A (en) * | 2016-01-25 | 2016-06-01 | 中山市利群精密实业有限公司 | Gate mechanism with groove |
| CN105818336A (en) * | 2016-04-26 | 2016-08-03 | 芜湖市万华塑料制品有限公司 | Insulation framework mould capable of cutting material directly after injection moulding |
| CN106827421A (en) * | 2017-03-20 | 2017-06-13 | 温州市文泰笔业有限公司 | Injection moulding apparatus are additional except useless mechanism |
| CN110509506A (en) * | 2019-09-09 | 2019-11-29 | 常州卓优电器有限公司 | Motor shaft sleeve molding die and application method |
| CN111421771A (en) * | 2020-04-23 | 2020-07-17 | 山西一饭科技有限公司 | Plastic precision injection molding processing equipment |
| CN111844630A (en) * | 2019-04-30 | 2020-10-30 | 安徽科瑞特模塑有限公司 | Injection mold with surplus limit cutting function |
| CN114734590A (en) * | 2022-03-11 | 2022-07-12 | 乔丰科技实业（深圳）有限公司 | Injection mold and injection molding method |
-
2005
- 2005-07-01 CN CN 200510035745 patent/CN1891432A/en active Pending
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100230849A1 (en) * | 2009-03-13 | 2010-09-16 | Shenzhen Futaihong Precision Industry Co., Ltd. | Cutter |
| US20110171338A1 (en) * | 2010-01-08 | 2011-07-14 | Han Dongchul | Apparatus and method for molding compound |
| CN101979235A (en) * | 2010-10-18 | 2011-02-23 | 昆山乙盛机械工业有限公司 | Male die oil cylinder thimble die internal cutting |
| CN102476430A (en) * | 2010-11-29 | 2012-05-30 | 浙江天翀车灯集团有限公司 | Automatic cutting mechanism of automobile reflector die |
| CN102717480A (en) * | 2011-04-12 | 2012-10-10 | 苏州腾行精密模具有限公司 | Mold convenient for removing waste materials in runners |
| CN103358484B (en) * | 2012-11-09 | 2015-10-28 | 广州现代塑料有限公司 | A kind of injection mold being easy to the demoulding |
| CN103358484A (en) * | 2012-11-09 | 2013-10-23 | 广州现代塑料有限公司 | Injection mould capable of being easily de-molded |
| CN103847075A (en) * | 2012-11-29 | 2014-06-11 | 汉达精密电子(昆山)有限公司 | Structure capable of realizing automatic removing of gate and runner excess material of mould |
| CN104210069A (en) * | 2014-08-29 | 2014-12-17 | 苏州正豪塑胶电子有限公司 | Directly-cutting injection mold |
| CN104339583A (en) * | 2014-09-26 | 2015-02-11 | 无锡优萌模塑制造有限公司 | Forming structure of injection moulding machine |
| CN104852533A (en) * | 2015-06-02 | 2015-08-19 | 安徽飞翔电器有限公司 | Large cast aluminum rotor machining device with mold unloading function |
| CN105269773A (en) * | 2015-11-17 | 2016-01-27 | 重庆持恒模具有限公司 | Automatic water opening cutting die |
| CN105538616A (en) * | 2015-12-10 | 2016-05-04 | 昌辉精密模具（黄山）有限公司 | Method for realizing automatic cutting of disc gate during mould ejection |
| CN105619714A (en) * | 2016-01-25 | 2016-06-01 | 中山市利群精密实业有限公司 | Gate mechanism with groove |
| CN105818336A (en) * | 2016-04-26 | 2016-08-03 | 芜湖市万华塑料制品有限公司 | Insulation framework mould capable of cutting material directly after injection moulding |
| CN106827421A (en) * | 2017-03-20 | 2017-06-13 | 温州市文泰笔业有限公司 | Injection moulding apparatus are additional except useless mechanism |
| CN111844630A (en) * | 2019-04-30 | 2020-10-30 | 安徽科瑞特模塑有限公司 | Injection mold with surplus limit cutting function |
| CN110509506A (en) * | 2019-09-09 | 2019-11-29 | 常州卓优电器有限公司 | Motor shaft sleeve molding die and application method |
| CN111421771A (en) * | 2020-04-23 | 2020-07-17 | 山西一饭科技有限公司 | Plastic precision injection molding processing equipment |
| CN114734590A (en) * | 2022-03-11 | 2022-07-12 | 乔丰科技实业（深圳）有限公司 | Injection mold and injection molding method |
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Open date: 20070110 |