CN206536773U - A kind of injection mold structure - Google Patents
A kind of injection mold structure Download PDFInfo
- Publication number
- CN206536773U CN206536773U CN201720246396.7U CN201720246396U CN206536773U CN 206536773 U CN206536773 U CN 206536773U CN 201720246396 U CN201720246396 U CN 201720246396U CN 206536773 U CN206536773 U CN 206536773U
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- Prior art keywords
- mould
- runner
- core rod
- core
- mold structure
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Abstract
The utility model discloses a kind of injection mold structure, including upper mould, core rod and lower mould, core rod is located between upper die and lower die, the upper surface of upper mould is fixed with sprue bush fixed plate, sprue bush is installed in sprue bush fixed plate, total runner that upper mould lower surface is provided with connection sprue bush is stretched to along sprue bush, periphery around total runner is provided with heater, fitted with the lower surface of upper mould the upper surface of core rod, core rod lower surface, which is stretched to, in the upper surface of core rod is provided with a plurality of runner, the lower surface of core rod is core, the shape of core is consistent with the article shape for treating injection molding, die cavity is provided with lower mould, core in core rod cooperatively forms the receiving space for the product for treating injection molding with the die cavity in lower mould.The utility model can be remedied due to the problems such as upper mould, core rod and lower mould influence the speed of mould filling to influence plastic molten melt degree because of the difference of temperature and cause uneven injection moulding process product molding or flow blockage.
Description
Technical field
The utility model belongs to injection technical field of membrane, more particularly to a kind of injection mold structure.
Background technology
Injection molding is that high-temperature fusion plastics are expressed to a kind of method being molded in die cavity, its be also plastics it is main into
Type method, feature is that production efficiency is high, and the flexibility (adaptability) of operation to various plastics is strong, and energy forming shape is complicated, accurate in size note
Molding product, application field is extensive.Its production process is：First the solid plastics of granular (or powdery) are plastified into uniform close
The good plastic melt of plasticity of degree, viscosity and composition, then this kind of plastic melt is possessed one by applying certain pressure
Constant current is fast and injects and enters in the die cavity of mould, after plastic melt cooling and shaping, just can obtain and die profile one
The plastic products of cause.
But be due to mould filling velocity it is slower, dynamic model, cover half temperature it is inconsistent, often influence product injection molding
Effect.Long and plus temperature the front and rear change that such as runner is set, plastic melt is by that can influence plastics to melt during runner
Body solubility and mobility, possible plastic melt temperature does not reach and is trapped in runner and hardens and then block runner when serious
Trafficability performance, and then influence the further shaping of injection-molded item.
Utility model content
The purpose of this utility model is that there is provided a kind of injection mold structure to overcome above-mentioned the deficiencies in the prior art.
To achieve the above object, the utility model uses following technical proposals：
A kind of injection mold structure, including upper mould, core rod and lower mould, the core rod is between upper die and lower die, institute
The upper surface for stating mould is fixed with sprue bush fixed plate, the sprue bush fixed plate and is provided with sprue bush, is stretched along sprue bush
Upward mould lower surface is provided with total runner of connection sprue bush, and the periphery of total runner is provided with heater, the core rod
Upper surface fitted with the lower surface of upper mould, core rod lower surface is stretched in the upper surface of core rod and is provided with a plurality of runner, it is described
Total runner in upper mould and the runner insertion in core rod, the lower surface of the core rod is core, and the shape of the core is with treating
The article shape of injection molding is consistent, and the core being provided with the lower mould in die cavity, the core rod is matched somebody with somebody with the die cavity in lower mould
The receiving space for forming the product for treating injection molding is closed, the upper mould, core rod and lower mould are accordingly put and led to from top to bottom successively
Fixation is bolted after the guiding and location fit of crossing locating dowel, is provided with from the lower end of lower mould toward upper end and is inserted into die cavity
The push pedal of bottom, correspondence is provided with shoving hole, the base below correspondence shoving hole positioned at the underface of push pedal on base
Cylinder is provided with, the push rod of the cylinder passes through shoving hole and then promotes push pedal to move the product in ejection die cavity upwards.
The cylinder is fixed in cylinder fixed seat, and the cylinder fixed seat respect thereto is fixed.
The base is fixedly connected by support column with the lower surface of lower mould, and the lower surface of the lower mould passes through supporting leg branch
Support.
The heater is heating wire.
Blind bottom annular groove is provided with one week on the outside of total runner, the heater strip is uniformly set for one week on the outside of total runner
Put in blind bottom annular groove.
The length of total runner is more than the length of any runner.
The length of total runner is 2 times of the length of average runner.
The radial dimension upper and lower port of total runner is consistent, in leakage near the radial dimension upper and lower port of the runner
Bucket shape, and middle transition end radial dimension is consistent.
The injection mold structure that the utility model is provided, its operation principle is：
During matched moulds, in the presence of injector helical screw agitator, high-temperature fusion plastics are entered successively by the sprue bush of upper mould upper end
The total runner entered, then through runner by runner cast gate injection die cavity, into guarantor of the molten plastic in die cavity through a period of time
Cured shaping；The bolt of each corresponding position is first turned on during die sinking successively, mould and core rod are then removed successively, now be can use
The runner waste material gone out in runner, is easy to injection molding next time；Then start to take product, cylinder push-rod is moved and then upwards upwards
Push pedal is promoted also to move upwards, and then push pedal ejects the moulded products in die cavity.
The injection mold structure that the utility model is provided, by being provided with heater around the periphery of total runner,
The heater can keep the plastics of high-temperature fusion still to keep corresponding temperature after entering total runner by sprue bush, and it can be mended
Rescue because upper mould, core rod and lower mould influence the speed or influence plastic molten melt degree of mould filling because of the difference of temperature and cause
Injection moulding process product molding is uneven or the problems such as flow blockage, with the stability for improving product molding performance；In addition, will
The length always flowed is set greater than the length of any runner, and mainly considering that total runner periphery is provided with heater herein can phase
The better heat preservation for without the runner for additionally setting heater, so when injection molding, high-temperature fusion
The temperature of plastics can continue to be incubated in long total runner, when the plastic passages runner of high-temperature fusion, due to shunting
The relative path short plastics for making high-temperature fusion in road are unlikely to make temperature loss too many and then influence injection into die cavity quickly
The molding effect of product.
Brief description of the drawings
Fig. 1 is point mould view of the utility model mould structure；
Fig. 2 is the matched moulds view of the utility model mould structure.
Wherein：1. on mould, 2. core rods, 21. cores, 22. runners, 3. times moulds, 31. die cavities, 4. push pedals, 5. bases, 51.
Support column, 52. shoving holes, 6. air cylinder fixed plates, 7. cylinders, 8. supporting legs, 9. bolts, 10. locating dowels, 11. sprue bush, 12.
Sprue bush fixed seat, 13. total runners, 14. heating wire, 15. runner waste materials, 21. moulded products.
Embodiment
The utility model is further illustrated with reference to the accompanying drawings and examples.
Fig. 1 is point mould view of the utility model injection mold structure；Fig. 2 is that the utility model injection mould is signed an undertaking
The matched moulds view of structure.
As shown in Figure 1-2, a kind of injection mold structure, including upper mould 1, core rod 2 and lower mould 3, core rod 2 are located at the upper He of mould 1
Between lower mould 3, and the upper surface of upper mould 1 is fixed with sprue bush fixed plate 12, and is provided with sprue bush in sprue bush fixed plate 12
11, total runner 13 that upper mould lower surface is provided with connection sprue bush 11 is stretched to along sprue bush 11, wherein around total runner 13
Periphery is provided with heater, the heater can keep the plastics of high-temperature fusion by sprue bush 11 enter after total runner 12 according to
Corresponding temperature is so kept, it can be remedied due to the speed that upper mould 1, core rod 2 and lower mould 3 influence mould to fill because of the difference of temperature
Degree influences plastic molten melt degree and causes injection moulding process product molding uneven or flow blockage problem, and core rod 2 is upper
End face is fitted with the lower surface of upper mould 1, and is stretched to core rod lower surface in the upper surface of core rod 2 and be provided with a plurality of runner 22, and
Total runner 13 in upper mould 1 and the insertion of runner 22 in core rod 1, the lower surface of core rod 1 is core 21, and the shape of core 21
It is consistent with treating the article shape of injection molding, the core 21 in die cavity 31, core rod 2 and the die cavity in lower mould 3 are provided with lower mould 3
31 cooperatively form the receiving space for the product for treating injection molding, and upper mould 1, core rod 2 and lower mould 3 are accordingly put simultaneously from top to bottom successively
By being connected after the guiding and location fit of locating dowel 10 by bolt 9, and be provided with from the lower end of lower mould 3 toward upper end can
It is inserted into the push pedal 4 of the bottom of die cavity 31, correspondence is provided with shoving hole 52 positioned at the underface of push pedal 4 on base 5, and base 5
The middle lower section of correspondence shoving hole 52 is provided with cylinder 7, and the push rod of cylinder 7 may pass through shoving hole 52 and then promote push pedal 4 to move upwards
Eject the product in die cavity 31.
Preferably, cylinder 7 is fixed in cylinder fixed seat 6, and the respect thereto 5 of cylinder fixed seat 6 is fixed, in this base 5
It is fixedly connected by support column 51 with the lower surface of lower mould 3, and the lower surface of lower mould 3 is supported on ground by supporting leg 8.
Preferably, heater is heating wire 14, and total outside of runner 13 is provided with blind bottom annular groove, the ring of heater strip 14 for one week
It is uniformly arranged within one week in blind bottom annular groove around total outside of runner 13.
Preferably, the length of total runner 13 is more than the length of any runner 22, and total periphery of runner 13 is mainly considered herein
Better heat preservation for the runner 22 of extra setting heater can be relatively free of by being provided with heater, so in injection
When shaping, the temperature of the plastics of high-temperature fusion can continue to be incubated in long total runner 13, when the modeling of high-temperature fusion
Stream road runner 22, makes the plastics of high-temperature fusion be unlikely to quickly into die cavity 31 because the relative path of runner 22 is short
Make temperature loss too many and then influence the molding effect of injection-molded item.
Preferably, the length of total runner 13 is 2 times of the length of average runner 22.
Preferably, the radial dimension upper and lower port of total runner 13 is consistent, near the radial dimension upper and lower port of runner 22
In infundibulate, and middle transition end radial dimension is consistent.Specifically, it is in than larger near the radial dimension upper port of runner 22
Infundibulate and its upper end be excessively connected with the lower port of total runner 13, in comparing near the radial dimension lower port of runner 22
Small infundibulate and its lower end are connected with the connection of die cavity 31.
The injection mold structure that the utility model is provided, its operation principle is：
Fig. 2 is the matched moulds state of mould, and in the presence of injector helical screw agitator, high-temperature fusion plastics are by the upper upper end of mould 1
The total runner 13 that sequentially enters of sprue bush 11, then die cavity 31 injected by runner cast gate through runner 22, into die cavity 31
Pressurize curing molding of the molten plastic through a period of time；Fig. 1 is the die opening state of mould, is first turned on successively during die sinking each corresponding
Bolt 9 at position, then removes mould 1 and core rod 2 successively, now can be taken off the runner waste material 15 in runner, is easy to next
Secondary injection molding；Then start to take product, cylinder push-rod moves and then pushes up the also motion, and then push away upwards of push pedal 4 upwards
Plate 4 ejects the moulded products in die cavity 31.
The injection mold structure that the utility model is provided, by being provided with heater around the periphery of total runner,
The heater can keep the plastics of high-temperature fusion still to keep corresponding temperature after entering total runner by sprue bush, and it can be mended
Rescue because upper mould, core rod and lower mould influence the speed or influence plastic molten melt degree of mould filling because of the difference of temperature and cause
Injection moulding process product molding is uneven or the problems such as flow blockage, with the stability for improving product molding performance.
In description of the present utility model, it is to be understood that term " interior ", " outer ", " on ", " under ", " in " etc. indicate
Orientation or position relationship be, based on orientation shown in the drawings or position relationship, to be for only for ease of description the utility model and letter
Change description, rather than indicate or imply signified device or element must have specific orientation, with specific azimuth configuration and
Operation, therefore it is not intended that to limitation of the present utility model.
It is not new to this practicality although above-mentioned embodiment of the present utility model is described with reference to accompanying drawing
The limitation of type protection domain, one of ordinary skill in the art should be understood that on the basis of the technical solution of the utility model, ability
Field technique personnel need not pay the various modifications that creative work can make or deform still in protection model of the present utility model
Within enclosing.
Claims (8)
1. a kind of injection mold structure, it is characterized in that, including upper mould, core rod and lower mould, the core rod be located at upper die and lower die it
Between, the upper surface of the upper mould, which is fixed with sprue bush fixed plate, the sprue bush fixed plate, is provided with sprue bush, along cast gate
Set stretches to total runner that mould lower surface is provided with connection sprue bush, and the periphery of total runner is provided with heater, described
The upper surface of core rod is fitted with the lower surface of upper mould, and stretching to core rod lower surface in the upper surface of core rod is provided with a plurality of runner,
Total runner in the upper mould and the runner insertion in core rod, the lower surface of the core rod is core, the shape of the core
It is consistent with treating the article shape of injection molding, the core in die cavity, the core rod and the type in lower mould are provided with the lower mould
Chamber cooperatively forms the receiving space for the product for treating injection molding, and the upper mould, core rod and lower mould are accordingly put from top to bottom successively
And fixation is bolted after the guiding and location fit for passing through locating dowel, it is provided with and is inserted into toward upper end from the lower end of lower mould
The push pedal of cavity bottom, correspondence is provided with correspondence shoving hole in shoving hole, the base positioned at the underface of push pedal on base
Lower section is provided with cylinder, and the push rod of the cylinder passes through shoving hole and then promotes push pedal to move the product in ejection die cavity upwards.
2. injection mold structure as claimed in claim 1, it is characterized in that, the cylinder is fixed in cylinder fixed seat, described
Cylinder fixed seat respect thereto is fixed.
3. injection mold structure as claimed in claim 2, it is characterized in that, the lower surface that the base passes through support column and lower mould
It is fixedly connected, the lower surface of the lower mould is supported by supporting leg.
4. injection mold structure as claimed in claim 1, it is characterized in that, the heater is heating wire.
5. injection mold structure as claimed in claim 4, it is characterized in that, it is provided with blind bottom annular within one week on the outside of total runner
Groove, the heater strip is uniformly arranged in blind bottom annular groove for one week on the outside of total runner.
6. injection mold structure as claimed in claim 1, it is characterized in that, the length of total runner is more than any runner
Length.
7. injection mold structure as claimed in claim 1, it is characterized in that, the length of total runner is the length of average runner
2 times of degree.
8. injection mold structure as claimed in claim 1, it is characterized in that, the radial dimension upper and lower port one of total runner
Cause, be in infundibulate near the radial dimension upper and lower port of the runner, and middle transition end radial dimension is consistent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720246396.7U CN206536773U (en) | 2017-03-14 | 2017-03-14 | A kind of injection mold structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720246396.7U CN206536773U (en) | 2017-03-14 | 2017-03-14 | A kind of injection mold structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206536773U true CN206536773U (en) | 2017-10-03 |
Family
ID=59942853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720246396.7U Expired - Fee Related CN206536773U (en) | 2017-03-14 | 2017-03-14 | A kind of injection mold structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206536773U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108908880A (en) * | 2018-06-28 | 2018-11-30 | 滁州质顶机电科技有限公司 | A kind of household appliances shell injection mold |
| CN110508780A (en) * | 2019-08-29 | 2019-11-29 | 宜兴高泰克精密机械有限公司 | A kind of cylinder shell production mold for compressor of air conditioner |
| CN111546585A (en) * | 2020-05-21 | 2020-08-18 | 温州益蓉机械有限公司 | Runner structure of injection mold |
| CN113561416A (en) * | 2020-04-28 | 2021-10-29 | 惠州市耀盈精密技术有限公司 | Injection mold |
| CN115008693A (en) * | 2022-01-14 | 2022-09-06 | 台州学院 | Cold runner molding method of PEEK high-end bearing plastic retainer |
-
2017
- 2017-03-14 CN CN201720246396.7U patent/CN206536773U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108908880A (en) * | 2018-06-28 | 2018-11-30 | 滁州质顶机电科技有限公司 | A kind of household appliances shell injection mold |
| CN110508780A (en) * | 2019-08-29 | 2019-11-29 | 宜兴高泰克精密机械有限公司 | A kind of cylinder shell production mold for compressor of air conditioner |
| CN113561416A (en) * | 2020-04-28 | 2021-10-29 | 惠州市耀盈精密技术有限公司 | Injection mold |
| CN111546585A (en) * | 2020-05-21 | 2020-08-18 | 温州益蓉机械有限公司 | Runner structure of injection mold |
| CN115008693A (en) * | 2022-01-14 | 2022-09-06 | 台州学院 | Cold runner molding method of PEEK high-end bearing plastic retainer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171003 Termination date: 20180314 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |