CN204844723U - Injection mould - Google Patents
Injection mould Download PDFInfo
- Publication number
- CN204844723U CN204844723U CN201520394906.6U CN201520394906U CN204844723U CN 204844723 U CN204844723 U CN 204844723U CN 201520394906 U CN201520394906 U CN 201520394906U CN 204844723 U CN204844723 U CN 204844723U
- Authority
- CN
- China
- Prior art keywords
- plate
- ejector pin
- injection mould
- pin retaining
- rest pad
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000002347 injection Methods 0.000 title claims abstract description 38
- 239000007924 injection Substances 0.000 title claims abstract description 38
- 230000006835 compression Effects 0.000 abstract description 2
- 238000007906 compression Methods 0.000 abstract description 2
- 239000004033 plastic Substances 0.000 description 13
- 229920003023 plastic Polymers 0.000 description 13
- 238000000034 method Methods 0.000 description 8
- 239000011347 resin Substances 0.000 description 7
- 229920005989 resin Polymers 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 238000001746 injection moulding Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000010923 batch production Methods 0.000 description 1
- 238000000071 blow moulding Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000003856 thermoforming Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model discloses an injection mould, including moving clamp plate, push pedal, ejector pin retaining plate, rest pad and release link, supreme setting is down followed in proper order to moving clamp plate, push pedal, ejector pin retaining plate and rest pad, release link one end and ejector pin retaining plate fixed connection, bearing plate, mold core fixing plate, stripper plate, die cavity board and cover half bedplate has set gradually on the rest pad, cover half bedplate below is provided with distance pull rod and stop screw, the stop screw bottom is provided with compression spring, moving clamp plate one side is provided with the screw rod, gear wheel and ball bearing are installed in proper order to the screw rod top, cover half bedplate middle part is provided with the runner cover, runner cover below is provided with threaded core, threaded core installs planetary gear in the bottom, the gear wheel is connected with the planetary gear meshing, and this injection mould can realize the rotatory drawing of patterns, piece flash vestige can not appear, convenient operation, and compact structure, the operation is stable.
Description
Technical field
The utility model relates to a kind of die apparatus technical field, particularly relates to a kind of injection mould.
Background technology
Injection mold is a kind of instrument producing plasthetics; Also be the instrument giving plasthetics complete structure and accurate dimension.A kind of processing method used when injection mo(u)lding is some complex-shaped parts of batch production.The material melted that is heated is injected die cavity by high pressure by concrete finger, after cooling curing, obtains formed products.Injection mold divides into two kinds, thermosetting plastic mould, thermoplastic plastic's mould according to shaping characteristic; Divide into according to moulding process and pass mold, blow molding die, draw mould, thermoforming mould, hot-die (compression mould), injection mould etc., wherein hot-die can be divided into again excessive formula, half excessive formula, excessive formula three kinds in flash mode, and injection mould can be divided into again cold flowing mould channel, hot runner mould two kinds with running gate system; With can be divided into by handling mode movable type, fixed two kinds.
Although the structure of mould may be ever-changing because plastics variety and performance, the shape of plastic products and the type of structure and injector etc. are different, basic structure is consistent.Mould forms primarily of running gate system, thermoregulating system, forming part and constitutional detail.Wherein running gate system and forming part are direct contact portion with plastics, and change with plastics and goods, are the most complicated in mold, change maximum, require processing fineness and the highest part of precision.Injection mold is made up of dynamic model and cover half two parts, and dynamic model is arranged on the moving die plate of injection (mo(u)lding) machine, and cover half is arranged on the fixed form of injection (mo(u)lding) machine.When injection moulding, dynamic model and cover half close and form running gate system and die cavity, and during die sinking, dynamic model is separated to take out plastic products with cover half.In order to reduce heavy Design of Dies and manufacturing effort, injection mould have employed standard die set mostly.
Injection device injects device in mould after resin material being heated melt.From stub bar, resin is clamp-oned barrel as shown in the figure, by the rotation of screw rod by melt Conveying to the front end of machine barrel.In that process, under the effect of heater, heating makes the resin material in machine barrel be heated, under the shear stress of screw rod, make resin become molten condition, products formed and sprue will be equivalent to, the molten resin of runner is stranded in the front end (being referred to as metering) of machine barrel, and material is injected die cavity forward by the continuous of screw rod.When molten resin flows in mould, the translational speed (issuing velocity) of screw rod must be controlled, and control with pressure (packing pressure) after resin is full of die cavity.Work as screw position, when injection pressure reaches certain value, speeds control can be switched to Stress control by us.
Temperature each point in injection mold is uneven, also relevant with the time point in injection cycle.The effect of die heater keeps temperature constant exactly between 2min and 2max, that is prevents temperature difference to fluctuate up and down in production process or gap.Following several control methods are applicable to the temperature controlling mould: control flow check temperature is the most frequently used method, and control accuracy can meet majority of case requirement.Use this control method, be presented at the temperature of controller and mold temperature and inconsistent; The temperature fluctuation of mould is quite large, because change, injection speed, fusion temperature and room temperature that these factors comprise injection cycle are not directly measured and compensate to the hot factor affecting mould.Next is exactly the direct control of mold temperature.The method is that this just can adopt when mold temperature control accuracy requires higher at mould inside dress temperature sensor.The main feature that mold temperature controls comprises: the temperature of controller setting is consistent with mold temperature; The hot factor affecting mould can directly be measured and compensate.Under normal circumstances, the stability of mold temperature is than better by control flow check temperature.In addition, mold temperature control production process control in repeatability better.
At present when at forming device female plastic products, the internal thread automatic demoulding mechanism of mould comprises Combined screw thread core structure, rotation stripping mechanism etc.When adopting fabricated structure, the screw thread on plastic products generally need be designed to form of discontinuity, and shapingly easily occurs piece flash vestige afterwards.
Utility model content
The technical problems to be solved in the utility model is to provide one can realize rotating stripping demoulding, there will not be and occurs piece flash vestige, easy to operate, compact conformation, stable injection mould.
For solving the problem, the utility model adopts following technical scheme:
A kind of injection mould, comprise Bottom clamp plate, push pedal, ejector pin retaining plate, rest pad and release link, described Bottom clamp plate, push pedal, ejector pin retaining plate and rest pad are arranged successively from bottom to up, described release link one end is fixedly connected with ejector pin retaining plate, described rest pad is disposed with support plate, core fixing plate, stripper plate, cavity plate and top clamping plate, controlled interval pull rod and stop screw is provided with below described top clamping plate, Compress Spring is provided with bottom described stop screw, described Bottom clamp plate side is provided with screw rod, described screw tip is provided with gear wheel and ball bearing successively, sprue bush is provided with in the middle part of described top clamping plate, thread core is provided with below described sprue bush, bottom described thread core, planetary gear is installed, described gear wheel and planetary gear are connected with a joggle.
Further, described support plate side is provided with guide pillar.
Further, guide pin bushing is provided with below described top clamping plate.
Further, described guide pillars and bushes is suitable.
Further, described ejector pin retaining plate and screw rod are connected with a joggle.
Further, described core fixing plate arranged outside has snap close.
Another technical problem to be solved in the utility model is to provide a kind of processing technology of injection mould.
For solving the problems of the technologies described above, the utility model adopts following technical scheme: comprise the following steps:
1) injection machine is aimed at sprue bush to inject, after having injected, through pressurize and cooling, injection moulding machine mould open, moves after Bottom clamp plate;
2) thrown off by the snap close being in locking state, mould starts somatotype, and controlled interval pull rod keeps Given-distance Parting, and plastic is stayed on thread core;
3) after die sinking process completes, injection machine push rod ejects, and push pedal and ejector pin retaining plate move down, the gear motion of ejector pin retaining plate and screw rod, and screw rod original position is rotated, and through gear wheel and planetary transmission, drives thread core original position to rotate;
4) plastic does not rotate under the effect of spline fabrication hole, and Compress Spring and stripper plate are upwards released simultaneously, makes plastic disengage threads and departs from thread core completely, and after this stripper plate stops at stop screw place, completes stripping action;
5) during matched moulds, while Bottom clamp plate and top clamping plate close completely, snap close is locked, and cavity plate pushes down release link, and drive push pedal and ejector pin retaining plate to reset, matched moulds completes, and injection starts, and enters next working cycles.
The beneficial effects of the utility model are: the ejector pin retaining plate of setting and the gear motion of screw rod, screw rod original position is rotated, through gear wheel and planetary transmission, drive thread core original position to rotate, can rotating stripping demoulding be realized, there will not be and occur piece flash vestige, there is higher transmission efficiency simultaneously, effectively energy-conservation, guide pillars and bushes can keep mold-relieving type position stability, keeps higher machining accuracy.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structure chart of a kind of injection mould of the present utility model.
Detailed description of the invention
Consult shown in Fig. 1, a kind of injection mould, comprise Bottom clamp plate 1, push pedal 2, ejector pin retaining plate 3, rest pad 4 and release link 5, described Bottom clamp plate 1, push pedal 2, ejector pin retaining plate 3 and rest pad 4 are arranged successively from bottom to up, described release link 5 one end is fixedly connected with ejector pin retaining plate 3, described rest pad 4 is disposed with support plate 6, core fixing plate 7, stripper plate 8, cavity plate 9 and top clamping plate 10, controlled interval pull rod 11 and stop screw 12 is provided with below described top clamping plate 10, Compress Spring 13 is provided with bottom described stop screw 12, described Bottom clamp plate 1 side is provided with screw rod 14, described screw rod 14 top is provided with gear wheel 15 and ball bearing 16 successively, sprue bush 17 is provided with in the middle part of described top clamping plate 10, thread core 18 is provided with below described sprue bush 17, bottom described thread core 18, planetary gear 19 is installed, described gear wheel 15 is connected with a joggle with planetary gear 19.
Described support plate 6 side is provided with guide pillar 20.
Guide pin bushing 21 is provided with below described top clamping plate 10.
Described guide pillar 20 and guide pin bushing 21 suitable.
Described ejector pin retaining plate 3 is connected with a joggle with screw rod 14.
Described core fixing plate 7 arranged outside has snap close 22.
Another technical problem to be solved in the utility model is to provide a kind of processing technology of injection mould.
For solving the problems of the technologies described above, the utility model adopts following technical scheme: comprise the following steps:
1) injection machine is aimed at sprue bush 17 to inject, after having injected, through pressurize and cooling, injection moulding machine mould open, moves after Bottom clamp plate 1;
2) thrown off by the snap close 22 being in locking state, mould starts somatotype, and controlled interval pull rod 11 keeps Given-distance Parting, and plastic is stayed on thread core 18;
3) after die sinking process completes, injection machine push rod ejects, and push pedal 2 and ejector pin retaining plate 3 move down, the gear motion of ejector pin retaining plate 3 and screw rod 14, screw rod 14 original position is rotated, and through the transmission of gear wheel 15 and planetary gear 19, drives thread core 18 original position to rotate;
4) plastic does not rotate under the effect of spline fabrication hole, and Compress Spring 13 and stripper plate 8 are upwards released simultaneously, and make plastic disengage threads and depart from thread core 18 completely, after this stripper plate 8 stops at stop screw 12 place, completes stripping action;
5) during matched moulds, while Bottom clamp plate 1 and top clamping plate 10 close completely, snap close 22 is locked, and cavity plate 9 pushes down release link 5, and drive push pedal 2 and ejector pin retaining plate 3 to reset, matched moulds completes, and injection starts, and enters next working cycles.
The beneficial effects of the utility model are: the ejector pin retaining plate of setting and the gear motion of screw rod, screw rod original position is rotated, through gear wheel and planetary transmission, drive thread core original position to rotate, can rotating stripping demoulding be realized, there will not be and occur piece flash vestige, there is higher transmission efficiency simultaneously, effectively energy-conservation, guide pillars and bushes can keep mold-relieving type position stability, keeps higher machining accuracy.
The above; be only detailed description of the invention of the present utility model; but protection domain of the present utility model is not limited thereto; any change of expecting without creative work or replacement; all should be encompassed within protection domain of the present utility model; therefore, the protection domain that protection domain of the present utility model should limit with claims is as the criterion.
Claims (6)
1. an injection mould, it is characterized in that: comprise Bottom clamp plate, push pedal, ejector pin retaining plate, rest pad and release link, described Bottom clamp plate, push pedal, ejector pin retaining plate and rest pad are arranged successively from bottom to up, described release link one end is fixedly connected with ejector pin retaining plate, described rest pad is disposed with support plate, core fixing plate, stripper plate, cavity plate and top clamping plate, controlled interval pull rod and stop screw is provided with below described top clamping plate, Compress Spring is provided with bottom described stop screw, described Bottom clamp plate side is provided with screw rod, described screw tip is provided with gear wheel and ball bearing successively, sprue bush is provided with in the middle part of described top clamping plate, thread core is provided with below described sprue bush, bottom described thread core, planetary gear is installed, described gear wheel and planetary gear are connected with a joggle.
2. injection mould according to claim 1, is characterized in that: described support plate side is provided with guide pillar.
3. injection mould according to claim 2, is characterized in that: be provided with guide pin bushing below described top clamping plate.
4. injection mould according to claim 3, is characterized in that: described guide pillars and bushes is suitable.
5. injection mould according to claim 4, is characterized in that: described ejector pin retaining plate and screw rod are connected with a joggle.
6. injection mould according to claim 5, is characterized in that: described core fixing plate arranged outside has snap close.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520394906.6U CN204844723U (en) | 2015-06-08 | 2015-06-08 | Injection mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520394906.6U CN204844723U (en) | 2015-06-08 | 2015-06-08 | Injection mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204844723U true CN204844723U (en) | 2015-12-09 |
Family
ID=54735313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520394906.6U Expired - Fee Related CN204844723U (en) | 2015-06-08 | 2015-06-08 | Injection mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204844723U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104859110A (en) * | 2015-06-08 | 2015-08-26 | 芜湖瑞泰精密机械有限公司 | Injection mold |
| CN108081552A (en) * | 2017-12-22 | 2018-05-29 | 骏伟塑胶制品（太仓）有限公司 | A kind of teeth plastic wheel injection mold |
-
2015
- 2015-06-08 CN CN201520394906.6U patent/CN204844723U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104859110A (en) * | 2015-06-08 | 2015-08-26 | 芜湖瑞泰精密机械有限公司 | Injection mold |
| CN108081552A (en) * | 2017-12-22 | 2018-05-29 | 骏伟塑胶制品（太仓）有限公司 | A kind of teeth plastic wheel injection mold |
| CN108081552B (en) * | 2017-12-22 | 2023-11-10 | 江苏骏伟精密部件科技股份有限公司 | Plastic gear injection mold |
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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 |
Granted publication date: 20151209 Termination date: 20160608 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |