CN205148818U - Device is expected with fixed attention to automatic cutout runner of many types of chamber of some runner list die joint mould - Google Patents
Device is expected with fixed attention to automatic cutout runner of many types of chamber of some runner list die joint mould Download PDFInfo
- Publication number
- CN205148818U CN205148818U CN201520998420.3U CN201520998420U CN205148818U CN 205148818 U CN205148818 U CN 205148818U CN 201520998420 U CN201520998420 U CN 201520998420U CN 205148818 U CN205148818 U CN 205148818U
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- sprue puller
- interior
- semi
- material pole
- circular recesses
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Abstract
The utility model provides a device is expected with fixed attention to automatic cutout runner of many types of chamber of some runner list die joint mould, still be fixed with the outer material pole that draws on the roof fixed plate, draw material pole boring and opening upwards outward, draw the material to draw the material pole in installing in the pole outward, interior upper end of drawing the material pole sets up at the middle part of a plurality of one -tenth die cavities and congeal the material contact with the sprue, the interior lower extreme that draws the material pole draws including through the spring mounting in the material pole, the interior material pole that draws the material spacing through two stop device that keep off the position in the pole outward, first keeps off the position and does not break away from in drawing that the material pole is spacing in making and drawing the material pole outward, a second fender position is when top rod fixing plate makes progress compression spring, internally draw the material pole to carry out the spacing decrement that keeps the spring, a position and second up -and -down motion change of fender position through drawing the material pole are outward kept off to first, this device simple structure is reliable, be fit for a mould multicavity plastic mold, can be on the basis that does not increase the mould complexity, only just draw the material pole to carry out structural improvement to the mould, can realize above function, can not improve mould manufacturing cost.
Description
Technical field
The automatic break gate that the utility model relates to a kind of spot pouring mouth list die joint multiple-cavity mold coagulates materials device.
Background technology
Mould of plastics is the instrument giving plasthetics complete structure and accurate dimension, and different moulds is made up of different parts, and it realizes the processing of object profile mainly through the change of institute's moulding material physical state.Injection moulding be plastic warp is crossed barrel heating after, by injection machine by within the plastic injection of melting to the effigurate die cavity of tool, and reach shaping object.It is short that it has molding cycle, and energy one-shot forming is complex-shaped, the plastic products of dimensional accuracy.Its productivity ratio is high, easily realizes automated production.Along with the development of science and technology, be widely used with molded plastic article, mould molding quality requirement is more and more higher, but existing product shaping efficiency is low, trace it to its cause be due to, mould is when the formed product demoulding, it is all together be ejected mechanism to eject that shaping plastic and runner coagulate material, being separated by manually solidifying for running gate system material manually being cut off with plastic product again, considering that production batch is comparatively large, greatly reducing the production efficiency of product like this.
And existing cast gate solidifying material automatic-separation mechanism mainly exists following several: one utilizes two joint surfaces to implement solidifying material to be separated, but the complex structure cost of two joint surfaces is high; Be manufacture a special runner slide block, during mould die sinking, Angle Pin drives runner slide block dislocation motion, and force at gate cutting, this slide block device is higher to required precision, if during mould matched moulds, slide block does not have tight close, will there will be flash phenomena; One is also had to be exactly adopt predetermined cut-out, cast gate place is proceeded to by ejecting rod in advance, solidifying for cast gate place material is directly cut off, and thisly require the function that injection machine will have pre-top, and on mould structure, all want reaming bottom every other thimble except gate shear pin, mould complexity increases.
Utility model content
For the deficiency that prior art exists, the utility model provide a kind of simple and reliable for structure, realize running gate system and coagulate that material is separated with plastic product automatic, the automatic break gate of spot pouring mouth list die joint multiple-cavity mold of greatly enhancing productivity coagulates materials device.
For achieving the above object, the utility model provides following technical scheme: a kind of automatic break gate of spot pouring mouth list die joint multiple-cavity mold coagulates materials device, push pedal between Bottom clamp plate and moving platen is provided with top board fixed head, described top board fixed head can move between Bottom clamp plate and moving platen, described top board fixed head is fixed with the push rod corresponding with plastic position in multiple forming cavity, described top board fixed head is also fixed with outer sprue puller, described outer sprue puller boring and opening upwards, in described outer sprue puller, interior sprue puller is installed, the upper end of described interior sprue puller is arranged on the middle part of multiple forming cavity and expects to contact with sprue is solidifying, the lower end of described interior sprue puller by spring fitting in interior sprue puller, the interior stopping means by two gears of sprue puller is spacing outside for described interior sprue puller, first gear makes not depart from the spacing sprue puller outside of interior sprue puller, second gear push rod fixed head upwards Compress Spring time, internal sprue puller carries out the decrement of spacing keep-spring, first gear and second gear are changed by moving up and down of outer sprue puller.Described interior sprue puller is Z-shaped sprue puller.
Described stopping means comprises guide groove, steel ball, the first semi-circular recesses and the second semi-circular recesses, multiple described guide groove is symmetrical arranged and outside sprue puller inwall extends along interior sprue puller direction, a steel ball is installed in each described guide groove, described interior sprue puller is provided with at the first gear and the second gear place and matches with steel ball size and the first semi-circular recesses matched with guide groove position and the second semi-circular recesses.
The spacing L of described first semi-circular recesses and the second semi-circular recesses is less than the maximum compression distance of spring.
The radius R 1 of described first semi-circular recesses and the second semi-circular recesses is greater than the radius R 2 of steel ball.
Owing to adopting said structure, this device adopts spring and steel ball to cooperatively interact, the ejecting of sprue puller in postponing, thus the product that staggers eject the ejection cycle coagulating material with running gate system, reach the automatic object be separated that running gate system coagulates material and plastic product.On described interior sprue puller, the first semi-circular recesses is equal with the second semi-circular recesses arc radius, and the spacing L of two grooves is less than spring maximum compression distance, thus mechanism is run more smoothly; The radius R 1 of interior sprue puller upper groove is greater than the radius R 2 of steel ball, thus the wearing and tearing of reducing mechanism motion rigidity; Symmetrical laying wanted by interior sprue puller upper groove and steel ball, ensure that the stationarity of mechanism kinematic.
In sum, this apparatus structure is simple and reliable, is applicable to a multi-cavity mold mould of plastics, can is not increasing on the basis of mold complexity, only just carry out structural improvement to mould sprue puller, can realize above function, can not improve die manufacturing cost.Be widely used standard component in mould, saved research and development manufacturing expense, shorten the production cycle of product.
Accompanying drawing explanation
Fig. 1 is the sectional view that the utility model is arranged in mould.
Fig. 2 is the top view of mould.
Fig. 3 is the state diagram when preparation ejects of the present utility model.
Fig. 4 is the utility model state diagram that solidifying material cast gate is broken after ejecting a period of time.
Fig. 5 is the utility model Fig. 3 and Fig. 4 position relationship variation diagram.
Fig. 6 is the enlarged drawing at Fig. 3 C place.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is further described.
As described in this example of Fig. 1, whole secondary mould is made up of fixed half and moving half two parts, the all parts being positioned at solid plate 2 upper end (comprise top clamping plate 1, locating ring 22, gate bush 23, solid plate 2 is fixed on the soket head cap screw etc. on cover half base) belong to cover half part, and all parts being positioned at moving platen less than 4 (comprise gripper shoe 24 successively, push rod fixed head 15, push pedal 12 and Bottom clamp plate 9, described push rod fixed head 15 is provided with push rod 25, described push rod fixed head 15 is arranged between push pedal 12 and gripper shoe 24 as guiding resetting system by release link 6 and the back-moving spring 7 be sleeved in release link 6) belong to dynamic model part.
Plastic parts moulding process in this example (can comprise locating ring 22 by running gate system, gate bush 23), formation system (comprises upper cavity die die cavity 19, lower cavity die die cavity 17, core 18), guidance system (comprises guide pin bushing 3, guide pillar 5), ejection system (comprises push pedal 12, push rod fixed head 15, interior sprue puller 16, push rod 25, outer sprue puller 26, steel ball 27, spring 28), resetting system (comprises release link 6, back-moving spring 7, reset nail) fastening system (comprising each screw and soket head cap screw) and support system (comprise top clamping plate 1, solid plate 2, moving platen 4, parallels 8, Bottom clamp plate 9) etc. a few part coordinate and realize.
As shown in Figure 2, a kind of automatic break gate of spot pouring mouth list die joint multiple-cavity mold coagulates materials device, as shown in Figure 2, jointly four forming cavities 29 are formed by core 18 after dynamic model and the occlusion of cover half part correspondence, four forming cavities 29 are symmetrical along the rectangular shape of template, running gate system directly enters from being positioned at the middle sprue 30 of mould, by runner 31 and spot pouring mouth 32, directly enters four forming cavities 29.
Before finding out shaping plastic from Fig. 3,4,5, mould is tightly closed under the effect of injector, the head of injector tightly aims at the central recess part of gate bush 23, rely on certain injection pressure, the time of its injection of melting is entered upper cavity die die cavity 19, in mould cavity that lower cavity die die cavity 17, core 18 are formed.After mould cavity is injected and fills up, through pressurize and cooling, the plastics of melting cool in cavity, curing molding.Now, mould along die joint active and inactive mold separately.All parts of cover half side keep original position motionless, and all parts of dynamic model side move downward, wherein one-time formed four plastics will pack tightly on mold cores due to the reason of shrinkage factor, and running gate system coagulates material also because the Z-type of interior sprue puller 16 draws stub bar to stay dynamic model side.
During die sinking, two kinds of plastic materials together retreat with dynamic model, screw rod 35 always back to injector touches push pedal 12, as shown in Figure 6, push rod fixed head 15 is driven by push pedal 12, because push rod 25 and outer sprue puller 26 are all be fixed on push rod fixed head 15, first push rod 25 will keep synchronous with the motion of outer sprue puller head 26, but first the spring 28 between outer sprue puller 26 and interior sprue puller 16 is stressed will produce elastic compression, push rod 25 is in the process of moving upward, outer sprue puller 26 is also moving upward, but interior sprue puller 16 is due to spring 28 pressurized, by first transfixion, after spring 28 is compressed to extreme position, after the elastic force of spring 28 forces the steel ball 27 be fixed on outer sprue puller 26 to enter into the second semi-circular recesses from the first semi-circular recesses of interior sprue puller 16, steel ball 27 is stayed in the second semi-circular recesses, outer sprue puller 26 upwards ejects the solidifying material of running gate system again.Briefly, the stroke of interior sprue puller 16 directly lags behind push rod 25, directly cause middle running gate system to coagulate the material plastic product postponed in four cavitys to be ejected, due to mould employing is spot pouring mouth cast, the delay ejected, plastic product is cut off automatically at spot pouring mouth place, thus realize running gate system coagulate material be separated with the automatic of product.After the plastic demoulding, mould dynamic model part is advanced under the drive of injector, and resetting system forces ejection system normal reset, and mould is tight close again, completes once complete forming process, and prepares for injecting next time.
The length h size relationship that should meet below of outer sprue puller 26 is suitable: the minimum ejection height that the solidifying material of h< push rod overall length-lower cavity die die cavity thickness-gripper shoe thickness-cast allows.
The diameter of interior sprue puller 16 and the thickness of outer sprue puller 26 are little what ensure to try one's best in the basis that part has enough Rigidity and strengths, to save die cost.
Claims (5)
1. the automatic break gate of a spot pouring mouth list die joint multiple-cavity mold coagulates materials device, push pedal between Bottom clamp plate and moving platen is provided with top board fixed head, described top board fixed head can move between Bottom clamp plate and moving platen, described top board fixed head is fixed with the push rod corresponding with plastic position in multiple forming cavity, it is characterized in that: described top board fixed head is also fixed with outer sprue puller, described outer sprue puller boring and opening upwards, in described outer sprue puller, interior sprue puller is installed, the upper end of described interior sprue puller is arranged on the middle part of multiple forming cavity and expects to contact with sprue is solidifying, the lower end of described interior sprue puller by spring fitting in interior sprue puller, the interior stopping means by two gears of sprue puller is spacing outside for described interior sprue puller, first gear makes not depart from the spacing sprue puller outside of interior sprue puller, second gear push rod fixed head upwards Compress Spring time, internal sprue puller carries out the decrement of spacing keep-spring, first gear and second gear are changed by moving up and down of outer sprue puller.
2. the automatic break gate of spot pouring mouth list die joint multiple-cavity mold according to claim 1 coagulates materials device, it is characterized in that: described stopping means comprises guide groove, steel ball, the first semi-circular recesses and the second semi-circular recesses, multiple described guide groove is symmetrical arranged and outside sprue puller inwall extends along interior sprue puller direction, a steel ball is installed in each described guide groove, described interior sprue puller is provided with at the first gear and the second gear place and matches with steel ball size and the first semi-circular recesses matched with guide groove position and the second semi-circular recesses.
3. the automatic break gate of spot pouring mouth list die joint multiple-cavity mold according to claim 2 coagulates materials device, it is characterized in that: the spacing L of described first semi-circular recesses and the second semi-circular recesses is less than the maximum compression distance of spring.
4. the automatic break gate of spot pouring mouth list die joint multiple-cavity mold according to claim 3 coagulates materials device, it is characterized in that: the radius R 1 of described first semi-circular recesses and the second semi-circular recesses is greater than the radius R 2 of steel ball.
5. the automatic break gate of spot pouring mouth list die joint multiple-cavity mold according to claim 1 coagulates materials device, it is characterized in that: described interior sprue puller is Z-shaped sprue puller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520998420.3U CN205148818U (en) | 2015-12-03 | 2015-12-03 | Device is expected with fixed attention to automatic cutout runner of many types of chamber of some runner list die joint mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520998420.3U CN205148818U (en) | 2015-12-03 | 2015-12-03 | Device is expected with fixed attention to automatic cutout runner of many types of chamber of some runner list die joint mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205148818U true CN205148818U (en) | 2016-04-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520998420.3U Expired - Fee Related CN205148818U (en) | 2015-12-03 | 2015-12-03 | Device is expected with fixed attention to automatic cutout runner of many types of chamber of some runner list die joint mould |
Country Status (1)
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|---|---|
| CN (1) | CN205148818U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107877796A (en) * | 2017-12-05 | 2018-04-06 | 镒生电线塑料(昆山)有限公司 | A kind of mould of surface trimming cast gate |
| CN109304844A (en) * | 2018-10-21 | 2019-02-05 | 余姚市林鼎传动有限公司 | A kind of injection mold structure of shaft insulation |
| CN113815193A (en) * | 2021-09-09 | 2021-12-21 | 宁波方正汽车模具股份有限公司 | Injection mold with automatic stub bar excision function |
-
2015
- 2015-12-03 CN CN201520998420.3U patent/CN205148818U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107877796A (en) * | 2017-12-05 | 2018-04-06 | 镒生电线塑料(昆山)有限公司 | A kind of mould of surface trimming cast gate |
| CN109304844A (en) * | 2018-10-21 | 2019-02-05 | 余姚市林鼎传动有限公司 | A kind of injection mold structure of shaft insulation |
| CN113815193A (en) * | 2021-09-09 | 2021-12-21 | 宁波方正汽车模具股份有限公司 | Injection mold with automatic stub bar excision function |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160413 Termination date: 20161203 |