CN206510357U - A kind of core pulling structure for injection mold of Plastic Parts with Inner Thread - Google Patents
A kind of core pulling structure for injection mold of Plastic Parts with Inner Thread Download PDFInfo
- Publication number
- CN206510357U CN206510357U CN201621322982.7U CN201621322982U CN206510357U CN 206510357 U CN206510357 U CN 206510357U CN 201621322982 U CN201621322982 U CN 201621322982U CN 206510357 U CN206510357 U CN 206510357U
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- CN
- China
- Prior art keywords
- core
- thread
- plastic parts
- floating
- injection mold
- 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
- 229920003023 plastic Polymers 0.000 title claims abstract description 21
- 239000004033 plastic Substances 0.000 title claims abstract description 21
- 238000002347 injection Methods 0.000 title claims abstract description 16
- 239000007924 injection Substances 0.000 title claims abstract description 16
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model discloses a kind of core pulling structure for injection mold of Plastic Parts with Inner Thread, including floating-type core, thread core, tie down screw and dynamic model endoporus core, the floating-type core is arranged in the thread core, described thread core one end is arranged on moving clamping plate by a radial thrust bearing, the thread core other end is arranged in die cavity, the floating-type core is connected with the dynamic model endoporus core by the tie down screw, sprocket wheel is provided with the thread core, the sprocket wheel is connected with external drive motors.The utility model can complete the core_pulling demoulding of Plastic Parts with Inner Thread, it is ensured that the quality of Plastic Parts with Inner Thread.
Description
Technical field
The utility model is related to injection mold technical field, the injection mold tube bundle extracting machine of more particularly to a kind of Plastic Parts with Inner Thread
Structure.
Background technology
Injection mold is the tool for plasthetics rapid shaping.Injection mold is made up of dynamic model and cover half two parts,
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.In injection moulding
When dynamic model and cover half closure constitute running gate system and die cavity, dynamic model and cover half separation are to take out plastic products during die sinking.Mould
Mainly it is made up of running gate system, thermoregulating system, forming part and constitutional detail.Wherein running gate system and forming part are and plastics
Direct contact portion, and change with plastics and product, it is most complicated, change maximum, it is desirable to process finish and essence in mold
Spend highest part.Running gate system refer to plastics from nozzle enter die cavity before runner section, including sprue, cold slug well, point
Runner and cast gate etc..Forming part refers to the various parts for constituting article shape, including dynamic model, cover half and die cavity, core, shaping
Bar and exhaust outlet etc..
Thread plastic part is more widely used in because of its excellent building-up property and having self-lubricating property such as printing
The machine driving occasion of machine, duplicator or other office electric equipments.But Plastic Parts with Inner Thread is because its shape is special, especially
It is between core and helicitic texture, it is impossible to released helical gear from mould using simply die sinking mode.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of core pulling structure for injection mold of Plastic Parts with Inner Thread, can
Complete the core_pulling demoulding of Plastic Parts with Inner Thread, it is ensured that the quality of Plastic Parts with Inner Thread.
In order to solve the above-mentioned technical problem, the technical solution of the utility model is as follows：
A kind of core pulling structure for injection mold of Plastic Parts with Inner Thread, including floating-type core, thread core, tie down screw and dynamic
Mould endoporus core, the floating-type core is arranged in the thread core, and described thread core one end passes through a centripetal thrust force axle
Hold and be arranged on moving clamping plate, the thread core other end is arranged in die cavity, the floating-type core and the dynamic model endoporus
Core is connected by the tie down screw, and sprocket wheel is provided with the thread core, and the sprocket wheel is connected with external drive motors.
Further, the die cavity includes being provided with pass in cover half in the middle of core insert and cavity block, cavity block
Core, the cover half endoporus core is oppositely arranged with the dynamic model endoporus core, and the screw-type is set in the middle of the core insert
Core.
Further, one end of the floating-type core is arranged on the moving clamping plate by stop nut, the screw thread
Core is rotated against with the floating-type core.
Further, the thread core is fixed in movable mould push plate by one group of radial ball bearing, the movable mould push plate
The lower end coordinated with the thread core is provided with locking nut.
Using above-mentioned technical proposal, due to passing through floating-type core and thread core sheathed setting so that the rotation of thread core
Turn core-pulling mechanism reliable and stable.
Brief description of the drawings
Fig. 1 is core-pulling mechanism structural representation of the present utility model；
Fig. 2 is floating-type core rotation preventive mechanism structural representation in the utility model；
In figure, 1- stop nuts；2- radial thrust bearings；3- sprocket wheels；4- floating-type cores；5- locking nuts；6- radial balls
Bearing；7- thread cores；8- movable mould push plates；9- solid plates；10- core inserts；11- external screw thread sliding blocks；12- cavity blocks；13-
Curved pin；14- external screw thread cores；15- cover half endoporus cores；16- tie down screws；17- dynamic model endoporus cores；18- moving clamping plates.
Embodiment
Embodiment of the present utility model is described further below in conjunction with the accompanying drawings.Herein it should be noted that
Explanation for these embodiments is used to help understand the utility model, but does not constitute to restriction of the present utility model.This
Outside, as long as technical characteristic involved in each embodiment of the utility model disclosed below does not constitute conflict each other
It can just be mutually combined.
As shown in figure 1, a kind of core pulling structure for injection mold of Plastic Parts with Inner Thread, including floating-type core 4, thread core 7, lock
Tight screw rod 16 and dynamic model endoporus core 17, the floating-type core 4 are arranged in the thread core 7, the thread core 7 one
End is arranged on moving clamping plate 18 by a radial thrust bearing 2, and the other end of thread core 7 is arranged in die cavity, described
Floating-type core 4 is connected with the dynamic model endoporus core 17 by the tie down screw 16, and sprocket wheel is provided with the thread core 7
3, the sprocket wheel 3 is connected with external drive motors.Radial thrust bearing 2 mainly carries axial force during rotation Leave out thread, centripetal
Totally 2 pairs of ball bearing 6, carries radial load, and locking nut 5 is by the axially position of radial ball bearing 6.
Wherein, the die cavity includes being provided with cover half endoporus in the middle of core insert 10 and cavity block 12, cavity block 12
Core 15, the cover half endoporus core 15 is oppositely arranged with the dynamic model endoporus core 17, is set in the middle of the core insert 10
The thread core 7.
Wherein, one end of the floating-type core 4 is arranged on the moving clamping plate 18 by stop nut 1, the screw thread
Core 7 is rotated against with the floating-type core 4.As shown in Fig. 2 the profiled section radial shape of floating-type core 4 has irregular change, need
Critical path is to rotation stop.
Wherein, the thread core 7 is fixed in movable mould push plate 8 by one group of radial ball bearing 6, the movable mould push plate 8
The lower end coordinated with the thread core 7 is provided with locking nut 5.
During die sinking, motor-driven drive sprockets 3 drive the rotation Leave out thread of internal thread core 7, and now movable mould push plate 8 is in spring masterpiece
Opening is gradually moved up under, the spacer step of floating-type core 4 is moved up；When movable mould push plate 8 is separated with moving platen, thread demoulding mechanism is complete
Into the demoulding of screw thread, the motor stalls of thread demoulding mechanism.
Embodiment of the present utility model is explained in detail above in association with accompanying drawing, but the utility model is not limited to be retouched
The embodiment stated.For a person skilled in the art, it is right in the case where not departing from the utility model principle and spirit
These embodiments carry out a variety of change, modification, replacement and modification, still fall within protection domain of the present utility model.
Claims (4)
1. a kind of core pulling structure for injection mold of Plastic Parts with Inner Thread, it is characterised in that：Including floating-type core, thread core, locking
Screw rod and dynamic model endoporus core, the floating-type core are arranged in the thread core, and described thread core one end passes through one
Radial thrust bearing is arranged on moving clamping plate, and the thread core other end is arranged in die cavity, the floating-type core and institute
State dynamic model endoporus core to connect by the tie down screw, sprocket wheel is provided with the thread core, the sprocket wheel drives with outside
Dynamic motor connection.
2. a kind of core pulling structure for injection mold of Plastic Parts with Inner Thread according to claim 1, it is characterised in that：The die cavity
Including core insert and cavity block, be provided with cover half endoporus core in the middle of cavity block, the cover half endoporus core with it is described
Dynamic model endoporus core is oppositely arranged, and the thread core is set in the middle of the core insert.
3. a kind of core pulling structure for injection mold of Plastic Parts with Inner Thread according to claim 2, it is characterised in that：It is described to float
One end of core is arranged on the moving clamping plate by stop nut, thread core rotation relative with the floating-type core
Turn.
4. a kind of core pulling structure for injection mold of Plastic Parts with Inner Thread according to claim 3, it is characterised in that：The screw thread
Core is fixed in movable mould push plate by one group of radial ball bearing, and the movable mould push plate is pacified with the lower end that the thread core coordinates
Equipped with locking nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621322982.7U CN206510357U (en) | 2016-12-05 | 2016-12-05 | A kind of core pulling structure for injection mold of Plastic Parts with Inner Thread |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621322982.7U CN206510357U (en) | 2016-12-05 | 2016-12-05 | A kind of core pulling structure for injection mold of Plastic Parts with Inner Thread |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206510357U true CN206510357U (en) | 2017-09-22 |
Family
ID=59862937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621322982.7U Expired - Fee Related CN206510357U (en) | 2016-12-05 | 2016-12-05 | A kind of core pulling structure for injection mold of Plastic Parts with Inner Thread |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206510357U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108454033A (en) * | 2018-04-16 | 2018-08-28 | 厦门市超日精密模具有限公司 | A kind of external screw thread pulled core structure |
-
2016
- 2016-12-05 CN CN201621322982.7U patent/CN206510357U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108454033A (en) * | 2018-04-16 | 2018-08-28 | 厦门市超日精密模具有限公司 | A kind of external screw thread pulled core structure |
| CN108454033B (en) * | 2018-04-16 | 2023-09-05 | 厦门市超日精密模具有限公司 | External thread core pulling structure |
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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: 20170922 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |