CN101422954B - Composite inclined-roof stripper of injection mould - Google Patents
Composite inclined-roof stripper of injection mould Download PDFInfo
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- CN101422954B CN101422954B CN2008101217710A CN200810121771A CN101422954B CN 101422954 B CN101422954 B CN 101422954B CN 2008101217710 A CN2008101217710 A CN 2008101217710A CN 200810121771 A CN200810121771 A CN 200810121771A CN 101422954 B CN101422954 B CN 101422954B
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- oblique top
- top body
- mold insert
- lifter
- oblique
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Abstract
The invention relates to an injection mold structure, in particular to an injection mold composite lifter demoulding mechanism, in which barbed demoulding exists in four degree-of-freedom-directions in six degree-of-freedom-spaces on the inner wall of an injection product and which realizes the automatic demoulding function of the product in a mode of composite lifter. The demoulding mechanism comprises an upper mold, a lower mold, a core plate and a travel switch. The lower mold is provided with a movable lifter insert and a lifter body. A runner is arranged between the upper ends of the movable lifter insert and the lifter body and forms a certain angle with the horizontal plane. The lifter body is provided with a lifter guide block in the middle and connected with a lifter sliding seat at the lower end. The composite lifter demoulding mechanism realizes three barbed surfaces on the inner wall of the product, the mold has automatic demoulding function with barbs in the demoulding direction and a cooling water channel as well as a gas-assisted molding air path is arranged on the lifer body.
Description
Technical field
The present invention relates to a kind of injection mold structure; especially relate to 6 free degree spaces of a kind of injecting products internal face; there are 4 free degree directions to have the demoulding of overhead kick, adopt the mode of compound oblique top to realize the composite inclined-roof stripper of injection mould of product automatic demoulding functions.
Background technology
In general mould structure; the mode demoulding of oblique top or inner core pulling is taked in the overhead kick of product inwall; overhead kick is considered as the part of product inwall at product for it; must there be more free space to arrange mould emptier; and there is not overhead kick in the direction of the demoulding; and to three overhead kicks of product inwall; and there is the demoulding of overhead kick at stripping direction; common oblique top mechanism just can not realize, general design considers to take movable insert with the ejecting of mould, and takes out from injecting products by hand; working strength is big; production cycle is long, and quality stability is poor, can't satisfy the production requirement of die automation.In the demoulding product of mould, people have designed many kinds of modes, each have their own characteristics.
As the patent No. is that the demoulding liftout attachment of 200610003433.8 1 kinds of injection transfer molding machines comprises, be fixed on the board below of injection transfer molding machine and be positioned at the fixed head that the demoulding ejects the position by one group of suspension rod, the cope match-plate pattern that is held up hydraulic oil cylinder driving by two cope match-plate patterns holds up mechanism, the middle template of two middle template picking-up hydraulic oil cylinder driving holds up mechanism, an injection moulding spare ejects the injection moulding spare ejecting mechanism of hydraulic oil cylinder driving, cope match-plate pattern holds up oil cylinder, middle template holds up oil cylinder and injection moulding spare, ejecting oil cylinder is fixedly mounted on the lower surface of fixed head, adopt this demoulding liftout attachment, more convenient in order to the superfluous material of removing on the cope match-plate pattern plane.It as the patent No. a kind of mould stripper apparatus of utility model of 200420083769.6, comprise by the ball plate and be arranged on the slide block of also fixing in the slide guide groove of moving platen by two pressing plates, be connected with on the slide block and loose core, the inclined hole that slider top is provided with, slide block is located at one by oblique hole sleeve and is fixed on the solid plate, thereby the constraint slide block can only be made horizontal motion in the slide block slot.
And for example the patent No. is 03247500.4 1 kinds of forced stripper mechanism structures, include a male model, a master mold, being provided with first in male model goes into son and second and goes into son, first goes into son, second goes into son and has the inclined-plane, also has a backing plate under the male model, and first goes into son, second goes into son and be provided with the 3rd and go into son, the 3rd goes into son slightly is a pyramidal structure, its bigger end is fixed on the backing plate, and this forced stripper mechanism structure can make the injection-molded finished ratio of inner wall smooth be easier to the demoulding.As the patent No. is 91216690.8 1 kinds of punch press prepressing type stripper apparatus, particularly the punch press demoulding being taken off the material pin part combines with a thrust producing component, this thrust producing component is located at slider of punch inner bottom part position, and the thrust producing component can be made of spring, vapour pressure, oil pressure or nitrogen spring, make to take off and expect that pin has a precompressed thrust, this device can prevent that workpiece processing back from causing because of coming off arbitrarily damaging, and has certain effect to many genus stamping parts.
The patent No. is but that 99243937.X is a kind of mould of fast demoulding for another example, four jiaos at base plate respectively are provided with a pilot pin respectively, central authorities are provided with a fore-set, locate and eject a top pin plate with guiding, and all sides that are matched with the top pin plate respectively pivot cover one be fixed in the fixed block of base plate, make fixed block slidably between the pin plate of top, the fixed block inboard is respectively equipped with two guide rails that extend out from bottom to top, be positioned at the fixing alignment pin of two corresponding slide block peripheries and make, when the top pin plate upwards ejects, can be subjected to expand outside the guide rail separately, to reach the demoulding that slide block separates fast.It also is a kind of pickoff of 200620017980.7 just like the patent No., comprise pumped vacuum systems, be communicated with pumped vacuum systems can hold the vacuum (-tight) housing for the treatment of demoulding product in the die cavity and can drive vacuum (-tight) housing near and leave the drive system of die cavity, by vacuum (-tight) housing and corresponding pumped vacuum systems, drive system are set, make in the knockout course force-bearing situation of product be easy to control, can improve demoulding qualification rate, help to realize demoulding automation.
More than various stripper apparatus very big with architectural difference of the present invention, especially to three overhead kicks of injecting products inwall, and all can't finish demoulding task what there was overhead kick in stripping direction.
Summary of the invention
The objective of the invention is in order to solve 6 free degree spaces of injecting products internal face; there are 4 free degree directions to have the release problems that is difficult to of overhead kick; a kind of reasonable in design is provided; finish three overhead kicks of product inwall by compound oblique top mould emptier; and there is the mould automatic demoulding functions of overhead kick at stripping direction, can realizes the composite inclined-roof stripper of injection mould of automated production.
Above-mentioned technical problem of the present invention is mainly solved by following technical proposals: a kind of composite inclined-roof stripper of injection mould, comprise patrix, counterdie, core plate, travel switch, it is characterized in that being provided with in the described counterdie activity oblique top mold insert, the oblique top body, be provided with chute between activity oblique top mold insert and the oblique top body, activity oblique top mold insert and oblique top body are connected to 5 to 15 degree angles, the middle part of oblique top body is provided with the oblique top guide pad, the lower end connects with the oblique top slide, activity oblique top mold insert is the part spheroid form, its top is provided with the movable insert boss, under the reset mode, with be provided with taper hole in the patrix and cooperate, the side is provided with the part of oblique top tapering face, when resetting and the tapering boss of patrix side slide block carve and close, the bottom of oblique top mold insert is established and is adorned two straight push rods that reset in advance; The medium position of oblique top body passes the counterdie core rod, and oblique top guide pad and counterdie and core plate are fixed, and the oblique top slide passes liftout plate, is fixed on the thimble fixed head, and oblique top upper part of body side is provided with the part of oblique top tapering face; The straight push rod upper end that resets in advance connects with the bottom of oblique top mold insert, and counterdie core rod and core plate are passed in the middle part, and lower end and oblique top slide are fixed; Travel switch is fixed on the core plate, and its contact point links with the hole that the straight push rod that resets in advance passes core plate.
During product stripping, that utilizes that the power of the spacing generation of overhead kick of the side core-pulling motion of oblique top body and product realizes activity oblique top mold insert moves downward the demoulding relatively, and the effect of oblique top body is the demoulding of solution product side and the overhead kick of oblique top front end and provides driving force for activity oblique top mold insert.Activity oblique top mold insert mainly is to solve the overhead kick demoulding of oblique top withdrawing direction existence and the overhead kick demoulding at top, resetting of activity oblique top mold insert, adopted the straight push rod that resets in advance to pass the elliptical motion groove of oblique top body and the formation of activity oblique top mold insert, activity oblique top mold insert is owing to straight push rod position-limiting action activity oblique top mold insert can only upper and lowerly move, because activity oblique top mold insert is connected by oblique chute with oblique top body upper end, therefore activity oblique top mold insert is under the power that the straight push rod that resets in advance provides, work is with respect to the inclined-plane motion of oblique top, thereby realization resets in advance.The straight push rod upper end that resets in advance connects with the bottom of oblique top mold insert, counterdie core rod and core plate are passed in the middle part, lower end and oblique top slide are fixed, behind compound oblique top motion certain distance, when activity oblique top mold insert breaks away from the overhead kick of product, will be under the position-limiting action of the straight push rod that resets in advance, stop the relative motion with the oblique top body, and with the oblique motion of loosing core of oblique top body.
Utilize activity oblique top mold insert to cooperate during the upper and lower mould matched moulds of mould and the oblique top tapering face of product side slide block accurately resets and locked mode with the inclined-plane of patrix.The safe reset signal of oblique top body is realized by travel switch.Cooling water channel and gas assistant formation air flue have been arranged on this oblique top body.
As preferably, the inside of described oblique top body is provided with air flue, the gas outlet is arranged on the upper end of oblique top body, air inlet is arranged on the lower end of oblique top body, the upper and lower end air flue fabrication hole port of oblique top body is respectively equipped with on the air flue copper plug under the copper plug and air flue, the upper end is provided with air tube, and the air tube passage communicates with the gas assistant formation air flue of mold.The gas outlet is arranged on the upper side of oblique top body, the upper end of oblique top body is provided with air tube, and air inlet is arranged on the lower end of oblique top body, is convenient to join with air duct, because air flue needs to turn in the oblique top body, even the straight line body surface also can ports having, must be provided with fabrication hole during making, after air flue is finished, with the copper plug technology port is stopped up sealing, arranged on the oblique top body of the present invention and gas assistant formation air flue, made full use of the oblique top space, increased the general utility functions of oblique top.
As preferably, the inside of described oblique top body is provided with two water routes that are parallel to each other, water inlet and water return outlet all are arranged on the lower end side of oblique top body, the inside, upper end of oblique top body is provided with horizontal water channel, horizontal water channel can not break-through oblique top body, and the upper and lower end water route fabrication hole port of oblique top body is respectively equipped with on the water route copper plug under the copper plug and water route.The purpose in water route is cooling, the reasonable Arrangement water route has great significance to mould, product, the upper and lower end water route of oblique top body needs curved arrangement equally, even the straight line body surface also can ports having, then exist fabrication hole, be respectively equipped with on the water route copper plug under the copper plug and water route at the port of fabrication hole, the quantity of plug is decided by actual fabrication skill requirement, arranged cooling water channel on the oblique top body of the present invention, make full use of the oblique top space, prolonged the service life of oblique top and mold.
As preferably, described composite inclined-roof stripper of injection mould is characterized in that being provided with chute between described activity oblique top mold insert and the oblique top body, and oblique top mold insert bottom is provided with T type groove, and oblique top body top is provided with T type guide rail, and T type groove cooperates with T type guide clearance.Activity oblique top mold insert and oblique top body utilize the work guiding and the withdrawing effect of this gradient dovetail groove.
As preferably, described oblique top body is axially arranged with T type chute, cooperates with the T type guide clearance that the oblique top guide pad is provided with, and oblique top slide upper end is provided with T type chute, cooperates with the T type guide clearance that oblique top body lower surface is provided with.When the work of liftout plate and thimble fixed head, the oblique top body moves up and down along the oblique top guide pad, looses core when resetting when activity oblique top mold insert and oblique top body, and the oblique top body is laterally done certain slip along the oblique top slide.
As preferably, described liftout plate and thimble fixed head and secondary ejecting mechanism link.When mould liftout plate motion certain distance, product breaks away from the lower mould core fully, and under the effect of twice ejecting structure of mould, liftout plate continues to move upward together with the thimble fixed head, and compound oblique top ejects certain distance separately with product, so that take out product.
Therefore, the present invention is a kind of reasonable in design, has finished three overhead kicks of product inwall by compound oblique top mould emptier, and has the mould automatic demoulding functions of overhead kick at stripping direction, can realize the composite inclined-roof stripper of injection mould of automated production.
Description of drawings
Fig. 1 is a kind of structural representation of the present invention.
Fig. 2 be of the present invention a kind of in mold the positional structure schematic diagram.
Fig. 3 is a kind of compound oblique top top structure schematic diagram of the present invention.
Fig. 4 is a kind of oblique top body interior air passage structure schematic diagram of the present invention.
Fig. 5 is that a kind of inner air flue of Fig. 4 of the present invention moves towards structural representation.
Fig. 6 is a kind of oblique top body interior channel structure schematic diagram of the present invention.
Fig. 7 is that a kind of internal water channel of Fig. 6 of the present invention is moved towards structural representation.
Fig. 8 is a kind of mould open mode of the present invention operating position schematic diagram.
Fig. 9 is that a kind of mould of the present invention ejects the process status position view.
Figure 10 is that a kind of mould of the present invention ejects the limiting condition position view.
Figure 11 is a kind of mould matched moulds process status position view of the present invention.
Figure 12 is a kind of mould matched moulds limiting condition position view of the present invention.
Among the figure: 1. activity oblique top mold insert, 2. oblique top body, 3. reset in advance straight push rod, 4. oblique top slide, 5. oblique top guide pad, 6. travel switch, 7. liftout plate, 8. thimble fixed head, 9. secondary ejecting mechanism, 10. air tube, 11. tapering boss, 12. movable insert boss, 13. oblique top tapering faces, 14. core plate, copper plug, 261. water inlets, 262. water return outlets, 263. horizontal water channels under copper plug, 28. water routes on copper plug, 25. gas outlets, 26. water routes, 27. water routes under copper plug, 23. air inlets, 24. air flues on 21. air flues, 22. air flues.
The specific embodiment
Below by embodiment, and in conjunction with the accompanying drawings, technical scheme of the present invention is described in further detail.
Referring to Fig. 1,2,3,4; 5, the compound oblique top mechanism of present embodiment comprises activity oblique top mold insert 1 and oblique top body 2, and both connect with the dovetail groove form; in order to ensure activity oblique top mold insert 1 downward relatively motion is arranged on oblique top body 2, both be connected with and levels become the gradient of 10 degree to be connected.
The inside processing air flue 21 of oblique top body 2, gas outlet 25 is located at the upper end of oblique top body, air inlet 23 is located at the lower end side of oblique top body, add man-hour owing to exist port and air flue need change direction, so the upper and lower end air flue fabrication hole port of oblique top body is respectively equipped with on the air flue copper plug 24 under the copper plug 22 and air flue, oblique top body upper end is provided with air tube 10, and the air tube passage is communicated with the gas assistant formation air flue of mold.
Same two water routes that are parallel to each other 26 of internal production at oblique top body 2, water inlet 261 and water return outlet 262 all are arranged on the lower end side of oblique top body 2, the horizontal water channel 263 of the inner processing in the upper end of oblique top body, horizontal water channel can not break-through oblique top body, and each fabrication hole port of the upper and lower end water route of oblique top body is respectively with copper plug (28) sealing under copper plug 27 and the water route on the water route.
In processing during gentle road, water route, must avoid and mutual interference mutually such as the hole of oblique top body 2 other functional requirements or groove.
Oblique top body 2 passes the counterdie core rod, all be connected with oblique top guide pad 5 and oblique top slide 4 with the dovetail groove formal approach, oblique top slide 4 is fixed on liftout plate 7 and the thimble fixed head 8, the straight push rod 3 that resets in advance of activity oblique top mold insert 1 is fixed on the oblique top slide 4, and its guiding is intermittent motion by the straight push rod 3 that resets in advance with the counterdie core rod.
The safe reset signal of oblique top body 2 is realized by travel switch 6, travel switch 6 is fixed on the core plate 14, and accurately resetting of activity oblique top mold insert 1 promptly positioned with oblique top tapering face 13 counterparts and resetted by the movable insert boss 12 of movable insert itself and side slide block boss.
Assemble each water, gas and electricity loop and get final product work.
After the mould die sinking, the molding machine ejection system promotes mould liftout plate 7, compound oblique top setting in motion, activity oblique top mold insert 1 utilize the guiding and the withdrawing effect of gradient dovetail groove under the overhead kick effect of injecting products, do downward relatively motion with oblique top body 2, behind compound oblique top motion certain distance, activity oblique top mold insert 1 breaks away from the overhead kick of product, and under the position-limiting action of straight push rod 3 that resets in advance, stop the relative motion with oblique top body 2, with the 2 oblique motions of loosing core of oblique top body.When mould liftout plate 7 motion certain distances, product breaks away from the lower mould core fully, under the effect of twice ejecting structure of mould 9, liftout plate 7, thimble fixed head 8 continues motion, and compound oblique top mechanism ejects certain distance separately with product, and safe ready ground is by manipulator taking-up product then.
When mould resetted at ejection system, activity oblique top mold insert 1 was under the driving of the straight push rod 3 that resets in advance, and oblique top body 2 moves upward relatively, and resets in advance.After oblique top body 2 resets, the mould matched moulds, activity oblique top mold insert 1 is carved under the tight effect the tapering boss of upper mould core rod and side slide block, resets fully.
The foregoing description is to explanation of the present invention, is not limitation of the invention, any structure after the simple transformation of the present invention is all belonged to protection scope of the present invention.
Claims (6)
1. composite inclined-roof stripper of injection mould, comprise patrix, counterdie, core plate, travel switch, it is characterized in that being provided with in the described counterdie activity oblique top mold insert (1), oblique top body (2), be provided with chute between activity oblique top mold insert (1) and the oblique top body (2), activity oblique top mold insert (1) and oblique top body (2) are connected to 5 to 15 degree angles, the middle part of oblique top body (2) is provided with oblique top guide pad (5), the lower end connects with oblique top slide (4), activity oblique top mold insert (1) is the part spheroid form, its top is provided with movable insert boss (12), under the reset mode, with be provided with taper hole in the patrix and cooperate, the side is provided with the part of oblique top tapering face (13), when resetting and the tapering boss (11) of patrix side slide block carve and close, the bottom of oblique top mold insert (1) is established and is adorned two straight push rods (3) that reset in advance; The medium position of oblique top body (2) passes the counterdie core rod, oblique top guide pad (5) is fixing with counterdie and core plate (14), oblique top slide (4) passes liftout plate (7), is fixed on the thimble fixed head (8), and the side, top of oblique top body (2) is provided with the part of oblique top tapering face (13); Reset in advance straight push rod (3) upper end connects with the bottom of oblique top mold insert (1), and counterdie core rod and core plate (14) are passed in the middle part, and lower end and oblique top slide (4) are fixed; Travel switch (6) is fixed on the core plate (14), and its contact point links with the hole that the straight push rod (3) that resets in advance passes core plate (14).
2. composite inclined-roof stripper of injection mould according to claim 1; the inside that it is characterized in that described oblique top body (2) is provided with air flue (21); gas outlet (25) is arranged on the upper end of oblique top body; air inlet (23) is arranged on the lower end of oblique top body; the upper and lower end air flue fabrication hole port of oblique top body is respectively equipped with on the air flue copper plug (24) under the copper plug (22) and air flue; the upper end is provided with air tube (10), and the air tube passage communicates with the gas assistant formation air flue of mold.
3. composite inclined-roof stripper of injection mould according to claim 1 and 2; the inside that it is characterized in that described oblique top body (2) is provided with two water routes that are parallel to each other (26); water inlet (261) and water return outlet (262) all are arranged on the lower end side of oblique top body (2); the inside, upper end of oblique top body is provided with horizontal water channel (263); horizontal water channel can not break-through oblique top body, and the upper and lower end water route fabrication hole port of oblique top body is respectively equipped with on the water route copper plug (28) under the copper plug (27) and water route.
4. composite inclined-roof stripper of injection mould according to claim 1; it is characterized in that being provided with chute between described activity oblique top mold insert (1) and the oblique top body (2); oblique top mold insert (1) bottom is provided with T type groove; oblique top body (2) top is provided with T type guide rail, and T type groove cooperates with T type guide clearance.
5. according to claim 1 or 2 or 4 described composite inclined-roof stripper of injection mould; it is characterized in that described oblique top body (2) is axially arranged with T type chute; cooperate with the T type guide clearance that oblique top guide pad (5) is provided with; oblique top slide (4) upper end is provided with T type chute, and the T type guide clearance that is provided with oblique top body (2) lower surface cooperates.
6. composite inclined-roof stripper of injection mould according to claim 1 is characterized in that described liftout plate (7) and thimble fixed head (8) and secondary ejecting mechanism (9) link.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101217710A CN101422954B (en) | 2008-10-17 | 2008-10-17 | Composite inclined-roof stripper of injection mould |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101217710A CN101422954B (en) | 2008-10-17 | 2008-10-17 | Composite inclined-roof stripper of injection mould |
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| CN101422954A CN101422954A (en) | 2009-05-06 |
| CN101422954B true CN101422954B (en) | 2011-05-11 |
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| CN2008101217710A Expired - Fee Related CN101422954B (en) | 2008-10-17 | 2008-10-17 | Composite inclined-roof stripper of injection mould |
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Cited By (1)
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| TWI572471B (en) * | 2012-02-27 | 2017-03-01 | Ｌｇ化學股份有限公司 | Apparatus for manufacturing injection molded parts and method of manufacturing injection molded parts using the same |
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2008
- 2008-10-17 CN CN2008101217710A patent/CN101422954B/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI572471B (en) * | 2012-02-27 | 2017-03-01 | Ｌｇ化學股份有限公司 | Apparatus for manufacturing injection molded parts and method of manufacturing injection molded parts using the same |
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| CN101422954A (en) | 2009-05-06 |
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Address after: 315400, No. 518, Shun Shun Road, Yuyao, Zhejiang, Ningbo Patentee after: NINGBO SUNNY MOULD CO., LTD. Address before: 315400 No. 288 Xinjian North Road, Zhejiang, Yuyao Patentee before: Ningbo Sunny Mould Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110511 Termination date: 20161017 |
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| CF01 | Termination of patent right due to non-payment of annual fee |