CN208359379U - Screw thread Puller pin for testing in pregnant stick shell injection molding - Google Patents
Screw thread Puller pin for testing in pregnant stick shell injection molding Download PDFInfo
- Publication number
- CN208359379U CN208359379U CN201820705405.9U CN201820705405U CN208359379U CN 208359379 U CN208359379 U CN 208359379U CN 201820705405 U CN201820705405 U CN 201820705405U CN 208359379 U CN208359379 U CN 208359379U
- Authority
- CN
- China
- Prior art keywords
- face
- diameter
- plunger
- puller pin
- injection molding
- 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.)
- Active
Links
Landscapes
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model discloses a kind of screw thread Puller pins for testing in pregnant stick shell injection molding, it include: Puller pin ontology and plunger, the plunger has first end face, second end face and side, and the diameter of the first end face is less than the diameter of the second end face, the side is the cambered surface that second end face is extended to by first end face；The annular recess of distribution is at least in axial direction sequentially arranged at intervals with plural item in the side of the plunger, is arranged in parallel to form the helicitic texture between annular recess described in plural item.The screw thread Puller pin provided by the utility model for being used to test in pregnant stick shell injection molding, structure is simple, easy to use；In plunger side, the V-arrangement annular recess of setting, which can increase, grabs resultant force and frictional force, and the continuous curve surface between two annular recess then can effectively avoid step oral area from bursting apart.
Description
Technical field
The utility model relates to a kind of Puller pin, in particular to a kind of screw thread for testing in pregnant stick shell injection molding is drawn
Material pin, belongs to die apparatus technical field.
Background technique
With plastics industry rapid development and general and engineering plastics in terms of continuous improvement, plastic products
Application range also constantly expanding, the dosage of plastic product is also rising.
Plastic mould is a kind of tool for producing plastic products.It is made of a few group part parts, and inside has shaping mould
Chamber.When injection molding, clamping mould is on injection molding machine, and it is intracavitary that molten plastic is injected into pattern, and in intracavitary cooling and shaping, then on
Lower die separates, and product is left mold from die cavity ejection via ejection system, last mold recloses to be molded next time, whole
A injection moulding process is that circulation carries out.Testing pregnant stick is the essential medical supplies of health care industry, has biggish market
Demand comprising plastic shell and test pregnant device in plastic shell.Traditional pregnant stick housing production of testing also mostly uses mould
Tool injection molding is formed.
Currently, injection mold industry is undergoing continuous technological innovation and transformation, in three template dies using point type sprue bush
In, Puller pin is used to for the runner of hole irrigation oral area being temporarily fixed to runner plate, and cast gate and shaped article are cut off.It is existing
In technology, the front end portion of Puller pin is back-off shape, can demould the runner of hole irrigation oral area from point type sprue bush by force.
The Puller pin in three template dies, which is generally in the form of in three template dies, in the prior art is consolidated Puller pin by Puller pin briquetting and bolt
It is scheduled on fixed clamping plate, when mold all pulls open, fixed clamping plate is separated with runner plate, at this moment since Puller pin is fixed on cover half
On bottom plate, runner plate pulls runner from Puller pin.But since the plunger of Puller pin in the prior art is back-off
Shape, i.e. Puller pin are that the big root of head is small, and Puller pin blocks sectional area bigger runner in this way in runner, and makes
The sectional area size of runner is uneven, in addition such structure when encountering the product that moulding material is hard and appearance requirement is high,
Originally Puller pin is easy to pull out material bits when separating with runner pulling, and expects that bits can not only enter in runner and produce to product appearance
It is raw to influence, and irreversible damage can be caused to mold, the bad ratio of briquetting of product is not only increased, also will cause production
The increase of cost.
Utility model content
The main purpose of the utility model is to provide a kind of screw thread Puller pin for testing in pregnant stick shell injection molding,
Product after shaping will form a step structure, and the step structure top on product is wider than lower part, make it possible to smoothly cut
The waste material that cutout road generates, thus overcome the deficiencies in the prior art.
For the aforementioned purpose of utility model of realization, the technical solution adopted in the utility model includes:
The utility model provides a kind of screw thread Puller pin for testing in pregnant stick shell injection molding comprising Puller pin
Ontology and plunger, the plunger has first end face, second end face and side, and the diameter of the first end face is less than described the
The diameter of biend, the side are the cambered surface that second end face is extended to by first end face；The first end face of the plunger is arranged
In the first end of the Puller pin ontology, and the step structure by being set to the Puller pin body first end is connected to
On the Puller pin ontology；The step structure at least makes product after molding also and will form a corresponding step structure,
Step structure top on product is wider than lower part, at least in the side of the plunger there is plural item to be in axial direction successively spaced
The annular recess of arranged distribution is arranged in parallel to form the helicitic texture between annular recess described in plural item.
Further, the section of the annular recess is V-shaped.
Further, the bottom of two neighboring annular recess is interconnected through connection through-hole.
Further, the inner surface of the annular recess is additionally provided with a plurality of microprotrusion portions.
Further, the interconnecting piece between two neighboring annular recess is continuous curve surface.
Further, the diameter of the step structure is less than the diameter of the Puller pin body first end, and described
The diameter of step structure is greater than the diameter of the plunger first end face.
Further, the diameter of the Puller pin body first end: the diameter of step structure: plunger first end face it is straight
Diameter is (1.5~2): (1.2~1.4): 1.
Further, the diameter of the plunger first end face and the diameter ratio of second end face are 1:1.5~3.
Further, the ratio between the thickness of the step mechanisms and the thickness of plunger are 1:5~10.
Further, the longitudinal section of the plunger is trapezoidal, and the second end face of the plunger and the side are smooth
Connection.
It is compared with prior art, provided by the utility model for testing the screw thread Puller pin in pregnant stick shell injection molding,
Structure is simple, easy to use；In plunger side, the V-arrangement annular recess of setting, which can increase, grabs resultant force and frictional force, and two rings
Continuous curve surface between shape groove then can effectively avoid step oral area from bursting apart.
Detailed description of the invention
Fig. 1 is in one exemplary embodiments of the utility model for testing the screw thread Puller pin in pregnant stick shell injection molding
Structural schematic diagram；
Description of symbols: 1- Puller pin ontology；2- plunger；3- step structure；4- first end；21- first end face；
22- second end face, 23- annular recess.
Specific embodiment
In view of deficiency in the prior art, inventor is studied for a long period of time and is largely practiced, and is able to propose that this is practical new
The technical solution of type.The technical solution, its implementation process and principle etc. will be further explained as follows.
The utility model provides a kind of screw thread Puller pin for testing in pregnant stick shell injection molding comprising Puller pin
Ontology and plunger, the plunger has first end face, second end face and side, and the diameter of the first end face is less than described the
The diameter of biend, the side are the cambered surface that second end face is extended to by first end face；The first end face of the plunger is arranged
In the first end of the Puller pin ontology, and the step structure by being set to the Puller pin body first end is connected to
On the Puller pin ontology；The step structure at least makes product after molding also and will form a corresponding step structure,
Step structure top on product is wider than lower part, at least in the side of the plunger there is plural item to be in axial direction successively spaced
The annular recess of arranged distribution is arranged in parallel to form the helicitic texture between annular recess described in plural item.
Further, the section of the annular recess is V-shaped.
Further, the bottom of two neighboring annular recess is interconnected through connection through-hole.
Further, the inner surface of the annular recess is additionally provided with a plurality of microprotrusion portions.
Further, the interconnecting piece between two neighboring annular recess is continuous curve surface.
Further, the diameter of the step structure is less than the diameter of the Puller pin body first end, and described
The diameter of step structure is greater than the diameter of the plunger first end face.
Further, the diameter of the Puller pin body first end: the diameter of step structure: plunger first end face it is straight
Diameter is (1.5~2): (1.2~1.4): 1.
Further, the diameter of the plunger first end face and the diameter ratio of second end face are 1:1.5~3.
Further, the ratio between the thickness of the step mechanisms and the thickness of plunger are 1:5~10.
Further, the longitudinal section of the plunger is trapezoidal, and the second end face of the plunger and the side are smooth
Connection.
The technical solution, its implementation process and principle etc. will be further explained as follows.
Referring to Fig. 1, a kind of screw thread Puller pin for testing in pregnant stick shell injection molding, may include: Puller pin sheet
Body 1 and plunger 2, the plunger 2 has first end face 21, second end face 22 and side, and the diameter of the first end face 21 is small
In the diameter of the second end face 22, the side is the cambered surface that second end face 22 is extended to by first end face 21；The plunger
First end face 21 be set to the first end 4 of the Puller pin ontology 1, and first by being set to the Puller pin ontology
The step structure 3 of end 4 is connected on the Puller pin ontology 1；The step structure 3 at least makes product after molding also can shape
At a corresponding step structure, the step structure top on product is wider than lower part, wherein the step structure can be it is excessive
Hopper；The V-arrangement annular recess 23 that at least in the side of the plunger there is plural item to be in axial direction sequentially arranged at intervals distribution,
It is arranged in parallel to form the helicitic texture between annular recess described in plural item, the interconnecting piece between two neighboring annular recess is
The bottom of continuous curve surface and two neighboring annular recess is interconnected through connection through-hole, and the inner surface of annular recess is also set
It is equipped with a plurality of microprotrusion portions.
Further, the Step-edge Junction, 3 diameter are less than the diameter of the Puller pin body first end 4, and described
The diameter of step structure 3 is greater than the diameter of the plunger first end face 21.
Further, the diameter of the Puller pin body first end: the diameter of step structure: plunger first end face
Diameter is 1.5:1.2:1.
Further, the diameter of the plunger first end face and the diameter ratio of second end face are 1:1.5.
Further, the ratio between the thickness of the step mechanisms and the thickness of plunger are 1:6.
Further, the longitudinal section of the plunger is trapezoidal, and the second end face of the plunger and the side are smooth
Connection.
It is compared with prior art, provided by the utility model for testing the screw thread Puller pin in pregnant stick shell injection molding,
Structure is simple, easy to use；In plunger side, the V-arrangement annular recess of setting, which can increase, grabs resultant force and frictional force, and two rings
Continuous curve surface between shape groove then can effectively avoid step oral area from bursting apart.
It should be appreciated that above-described embodiment is only to illustrate the technical ideas and features of the present invention, it is ripe its object is to allow
The personage for knowing technique can understand the content of the utility model and implement accordingly, can not limit the utility model with this
Protection scope.All equivalent change or modifications according to made by the spirit of the present invention essence, should all cover in the utility model
Within protection scope.
Claims (10)
1. a kind of screw thread Puller pin for testing in pregnant stick shell injection molding comprising Puller pin ontology and plunger, the pin
Head has first end face, second end face and side, and the diameter of the first end face is less than the diameter of the second end face, described
Side is the cambered surface that second end face is extended to by first end face；The first end face of the plunger is set to the Puller pin ontology
First end, and the step structure by being set to the Puller pin body first end is connected on the Puller pin ontology；
The step structure at least makes product after molding also and will form a corresponding step structure, on the step structure on product
Portion is wider than lower part, it is characterised in that: at least in the side of the plunger there is plural item to be in axial direction sequentially arranged at intervals point
The annular recess of cloth is arranged in parallel to form helicitic texture between annular recess described in plural item.
2. according to claim 1 for testing the screw thread Puller pin in pregnant stick shell injection molding, it is characterised in that: the ring
The section of shape groove is V-shaped.
3. according to claim 1 or claim 2 for testing the screw thread Puller pin in pregnant stick shell injection molding, it is characterised in that: phase
The bottom of adjacent two annular recess is interconnected through connection through-hole.
4. according to claim 1 or claim 2 for testing the screw thread Puller pin in pregnant stick shell injection molding, it is characterised in that: institute
The inner surface for stating annular recess is additionally provided with a plurality of microprotrusion portions.
5. according to claim 1 or claim 2 for testing the screw thread Puller pin in pregnant stick shell injection molding, it is characterised in that: phase
Interconnecting piece between adjacent two annular recess is continuous curve surface.
6. according to claim 1 for testing the screw thread Puller pin in pregnant stick shell injection molding, it is characterised in that: described
The diameter of stage structure is less than the diameter of the Puller pin body first end, and the diameter of the step structure is greater than the pin
The diameter of head first end face.
7. according to the screw thread Puller pin for being used to test in pregnant stick shell injection molding described in claim 1 or 6, it is characterised in that: described
The diameter of Puller pin body first end: the diameter of step structure: the diameter of plunger first end face is (1.5~2): (1.2~
1.4):1。
8. according to the screw thread Puller pin for being used to test in pregnant stick shell injection molding described in claim 1, it is characterised in that: the plunger
The diameter of first end face and the diameter ratio of second end face are 1:1.5~3.
9. according to the screw thread Puller pin for being used to test in pregnant stick shell injection molding described in claim 1, it is characterised in that: the step
The ratio between thickness and the thickness of plunger of structure are 1:5~10.
10. according to the screw thread Puller pin for being used to test in pregnant stick shell injection molding described in claim 1, it is characterised in that: the pin
The longitudinal section of head is trapezoidal, and the second end face of the plunger is smoothly connected with the side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820705405.9U CN208359379U (en) | 2018-05-08 | 2018-05-08 | Screw thread Puller pin for testing in pregnant stick shell injection molding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820705405.9U CN208359379U (en) | 2018-05-08 | 2018-05-08 | Screw thread Puller pin for testing in pregnant stick shell injection molding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208359379U true CN208359379U (en) | 2019-01-11 |
Family
ID=64934834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820705405.9U Active CN208359379U (en) | 2018-05-08 | 2018-05-08 | Screw thread Puller pin for testing in pregnant stick shell injection molding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208359379U (en) |
-
2018
- 2018-05-08 CN CN201820705405.9U patent/CN208359379U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203901639U (en) | Insert embedded type injection molding die | |
| CN210283033U (en) | Rubber inner die convenient for filling rubber | |
| CN208359379U (en) | Screw thread Puller pin for testing in pregnant stick shell injection molding | |
| CN206663849U (en) | The mo(u)ld bottom half mould of given shape Product processing | |
| CN206465406U (en) | A kind of elbow member metal die for being easy to be stripped | |
| CN105029970B (en) | Flowerpot rack handle and the injection mold for manufacturing the flowerpot rack handle | |
| CN210415397U (en) | Structure for realizing graded core pulling in synchronous ejection process | |
| CN206623325U (en) | The Puller pin of improvement | |
| CN206716937U (en) | A kind of agricultural machinery chain tooth form hot precision forging die | |
| CN206703422U (en) | A kind of injection mold of Charger (portable round) lid | |
| CN207789643U (en) | It is a kind of to use movable insert demolding structure | |
| CN206703444U (en) | Three template dies with double-deck side core-pulling mechanism | |
| CN206484820U (en) | It is a kind of to improve the mould structure of injecting products depanning | |
| CN204430132U (en) | A kind of collecting device termination cold upsetting forming die | |
| CN210590288U (en) | Injection mold of cap | |
| CN206048627U (en) | A kind of circular arc ornaments mould | |
| CN202764130U (en) | Plastic mould used for molding of gas pipe joints | |
| CN206899663U (en) | The shaped device of injection mold | |
| CN215589817U (en) | One-to-eight-outlet die for inner taper sleeve of switch cabinet | |
| CN210919750U (en) | Internal thread injection molding connecting piece | |
| CN204430129U (en) | A kind of buckle cold upsetting forming die | |
| CN212385899U (en) | Valve body porous die | |
| CN206718367U (en) | Lithium battery pack support manufactures mould | |
| CN207789648U (en) | A kind of inclined-plane ejecting mechanism | |
| CN219464760U (en) | Powder metallurgy injection molding six-hole triangular block product mold |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |