CN209365262U - A kind of injection mold of hollow thread plastic tube - Google Patents
A kind of injection mold of hollow thread plastic tube Download PDFInfo
- Publication number
- CN209365262U CN209365262U CN201821779627.1U CN201821779627U CN209365262U CN 209365262 U CN209365262 U CN 209365262U CN 201821779627 U CN201821779627 U CN 201821779627U CN 209365262 U CN209365262 U CN 209365262U
- Authority
- CN
- China
- Prior art keywords
- plastic tube
- die
- injection mold
- lower die
- sliding block
- 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
- 239000004033 plastic Substances 0.000 title claims abstract description 48
- 229920003023 plastic Polymers 0.000 title claims abstract description 48
- 238000002347 injection Methods 0.000 title claims abstract description 24
- 239000007924 injection Substances 0.000 title claims abstract description 24
- 238000001746 injection moulding Methods 0.000 claims abstract description 7
- 239000003292 glue Substances 0.000 claims description 8
- 238000012986 modification Methods 0.000 abstract description 6
- 230000004048 modification Effects 0.000 abstract description 6
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 229920001875 Ebonite Polymers 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000000750 progressive effect Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model discloses a kind of injection mold of hollow thread plastic tube, it is made of the axial core-pulling of the upper die and lower die of controlled folding and corresponding plastic tube, it is characterized by: being equipped with a pair of of sliding block in two side of forming cavity between the upper die and lower die, and each opposite side of upper die and lower die and a pair of of sliding block is shaped to the outer wall-shaped face of plastic tube injection molding, and under closed mode state the fin in each outer wall-shaped face with axial core-pulling is seamless abuts, constitute the forming cavity of spiral extension.Pass through setting sliding block using the injection mold of the utility model, can part be opened carry out product core pulling during effectively keep plastics length of tube to structure feature and scale lengths, it is easily operated with die modifications, system control adjustment is easy, the yields of plastic tube, die modifications remarkable benefit greatly improved.
Description
Technical field
The utility model relates to a kind of injection mold developments, more particularly to a kind of hollow thread plastic tube that is directed to keep elasticity
The injection mold of power and length specification, belongs to mechanical manufacturing field.
Background technique
Injection molding production is the effective means that lot-size customizes all kinds of shaped pieces, the development origin of manufacturing process
For a long time and increasingly efficiently, environmental protection and high-quality.In numerous products, there is a kind of hollow thread plastic tube.Its both ends is that specification is straight
The annulus of diameter is then the hollow ring set for having one end annulus to be formed to other end annulus spiral extension therebetween.Although by hard rubber
Injection molding is expected, but since wherein hollow ring set forms certain gap during unidirectionally extended, when both ends receive
When axial compressive force the plastic tube can elastic shrinkage and stretching, meet needed for extraordinary application.
But in actual die sinking trial-manufacturing process, the characteristics of finding due to product self-style injected plastics material in addition
It expands with heat and contract with cold characteristic, the probability that deformation is shunk during formed product is high, and particularly axially bad product rate accounts in length
It is higher than very, to find out its cause, also driving product to collapse with core pulling in injection mold related in addition to a part of contraction distortion.For this purpose, needing
Existing production mould is improved, to promote the anti-ability collapsed during formed product.
Summary of the invention
The purpose of this utility model is directed to a kind of injection mold of hollow thread plastic tube, promotes formed product shape
Holding degree.
The utility model realizes that the technical solution of above-mentioned purpose is a kind of injection mold of hollow thread plastic tube,
Be made of the axial core-pulling of the upper die and lower die of controlled folding and corresponding plastic tube, it is characterised in that: the upper die and lower die it
Between in two side of forming cavity be equipped with a pair of of sliding block, and each opposite side of upper die and lower die and a pair of of sliding block is shaped to plastic tube note
The outer wall-shaped face of modeling, and under closed mode state the fin in each outer wall-shaped face with axial core-pulling is seamless abuts, constitute spiral extension
Forming cavity.
Further, the plastic tube has the cricoid end head of full circle and end tail portion, and between end head and end tail portion
For the stretch section of spiral extension, the length of the pair of sliding block and the preset length of stretch section are equal.
Further, the controlled folding of the pair of sliding block and the controlled folding of upper die and lower die are mutually independent.
Further, gas vent core, and the quantity and modeling of gas vent core are equipped in the outer wall-shaped face of the upper die and lower die
Screw thread the number of turns of expects pipe is corresponding.
Further, the lower die is equipped with glue feeding channel at corresponding plastic tube one end, and glue feeding channel be equipped with connection at
Type chamber, two horizontally arranged glue-feeders.
Further, the hole column combination of die closing contraposition is equipped between the upper die and lower die.
Using the forming jig of the utility model, have substantive distinguishing features and progressive: the injection mold is slided by setting
Block, can part be opened carry out product core pulling during effectively keep plastics length of tube to structure feature and scale lengths, tool
Have that die modifications is easily operated, system control adjustment is easy, and the yields of plastic tube greatly improved, and die modifications benefit is aobvious
It writes.
Detailed description of the invention
Fig. 1 is the sectional perspective structural schematic diagram of the utility model injection mold.
Specific embodiment
Just attached drawing in conjunction with the embodiments below, is described in further detail specific embodiment of the present utility model, so that this
Utility model technical solution is more readily understood, grasps, to make relatively sharp define to the protection scope of the utility model.
The utility model designer relies upon the experience for being engaged in injection molding production industry for many years, has studied hollow thread plastic tube
The architectural characteristic and forming requirements of itself take into account material feeding filling degree, Product Precision, flight pitch consistency in mold design
Etc. require, innovation proposes a kind of targetedly injection mold, thus significantly improves the yields of product.
Take off the contour structures and shaping characteristic of the hollow thread plastic tube first first, which has full circle ring
The end head of shape and end tail portion, and be the stretch section of spiral extension between end head and end tail portion.Wherein end head and end tail
Portion is equipped with the step of outer diameter sudden transformation, it is intended to meet external other assembly parts in practical application, while keep both ends
Circularity, for regular circular ring structure, common upper die and lower die and core pulling can perfect high-precision manufacture, therefore non-creation is infused
Mould emphasis claimed.As the important feature of product, wherein stretch section and both ends are integrally formed, and are prolonged in helical form
Gap is formed while stretching close to the elastic telescopic space of 2mm.In view of the difference of injecting products and conventional metals material spring,
It is shunk during cooling and shaping different with condition and has larger difference.
To avoid initially causing length from product core pulling, demoulding and shortening, necessary improvement need to be carried out to this injection mold.
The injection mold is equally made of the axial core-pulling of the upper die and lower die of controlled folding and corresponding plastic tube.The difference is that such as
Shown in Fig. 1, it is equipped with a pair of of sliding block 21,22 in two side of forming cavity between the upper die and lower die 1, and upper die and lower die and a pair are sliding
Each opposite side of block is shaped to the outer wall-shaped face of plastic tube injection molding, and the fin in each outer wall-shaped face and axial pumping under closed mode state
Core is seamless abutting, constitutes the forming cavity of spiral extension.Since upper and lower mould part forming cavity is corresponding, in order to more clearly
It shows forming cavity minutia, therefore omits upper mold diagram.And illustrate as it can be seen that a pair of sliding block it is controlled be in horizontally slip shape,
Each opposite direction side is shaped to wavy fin and groove.Also, when the outer wall-shaped face 11 of upper die and lower die and a pair of of sliding block
After thoroughly closure is gathered in outer wall-shaped face 211,221, those fins and groove will the corresponding each circle of plastic tube gap and entity, and
Only when those fins are fitted closely with axial core-pulling, can effectively avoid generating overlap in plastics tube cavity under injection pressure.
As other necessary supplementary structures of mold, gas vent core is additionally provided in the outer wall-shaped face of above-mentioned upper die and lower die
14, and the quantity of gas vent core 14 is corresponding with screw thread the number of turns of plastic tube, each circle stretch section entity respectively correspond upper mold and
Each gas vent core 14 of lower die, can make the even density of injection molding part in this way, prevent the yields of aeration plastic tube.
And lower die 1 is equipped with glue feeding channel 12 at corresponding plastic tube one end, and glue feeding channel 12 be equipped with connection forming cavity,
Horizontally arranged two glue-feeders 121,122.Ebonite injection room is being carried out, twoport is pressed simultaneously into glue, improved conscientiously to molding
The dynamics and pressure stabilizing of chamber injecting glue promote sizing material that can smoothly be fed to the other end with the cavity of spiral extension.
In addition, being equipped with the hole column combination 13 of die closing contraposition between the upper die and lower die.Since the forming cavity of the plastic tube is
It is made of multi-section point splicing, therefore the closure accuracy of each section is very big on formed product influence, increasing the design can effectively mention
High product Forming Quality.
Need Chen Ming, the length of above-mentioned a pair of sliding block is equal with the preset length of stretch section, and a pair of of sliding block by
Control folding and the controlled folding of upper die and lower die are mutually independent.The die design characteristics of the utility model be mainly reflected in plastic tube at
During product die sinking, demoulding, if the not participation to sliding block, only upper die and lower die are half-open and carry out core pulling, demoulding is made
Industry also can shaped article, only during core pulling due to the limitation departing from upper mold or lower die to plastic tube one end, along core pulling side
It can proximally be shunk to the distal end of plastic tube, external force is caused to shorten.Thus molding plastic tube shorten amplitude aggravation.And through this
Injection mold after creation improvement, although the limit of end head and end tail portion departing from upper and lower mould, the fin of sliding block after die sinking
The lateral restraint of plastic tube is provided, especially on stretch section, will not be compressed axially during entire core pulling
Problem, to core pulling after control again unclamp two side slides, complete plastic tube stripping forming.
To sum up in conjunction with the embodiments and its diagram detailed description, it is intended to deepen to the utility model forming jig functional characteristic
Understanding, have substantive distinguishing features and progressive: the injection mold by setting sliding block, can part be opened carry out product pumping
Effectively keep during core plastics length of tube to structure feature and scale lengths, have die modifications easily operated, system control
System adjustment is easy, and the yields of plastic tube, die modifications remarkable benefit greatly improved.
Claims (6)
1. a kind of injection mold of hollow thread plastic tube is taken out by the upper die and lower die and the axial of corresponding plastic tube of controlled folding
Core is constituted, it is characterised in that: be equipped with a pair of of sliding block in two side of forming cavity between the upper die and lower die, and upper die and lower die and
Each opposite side of a pair of of sliding block is shaped to the outer wall-shaped face of plastic tube injection molding, and under closed mode state the fin in each outer wall-shaped face with
Axial core-pulling is seamless abutting, constitutes the forming cavity of spiral extension.
2. the injection mold of hollow thread plastic tube according to claim 1, it is characterised in that: the plastic tube has full circle
Cricoid end head and end tail portion, and be the stretch section of spiral extension between end head and end tail portion, the pair of sliding block
Length is equal with the preset length of stretch section.
3. the injection mold of hollow thread plastic tube according to claim 1, it is characterised in that: the pair of sliding block it is controlled
The controlled folding opened and closed with upper die and lower die is mutually independent.
4. the injection mold of hollow thread plastic tube according to claim 1, it is characterised in that: outside the upper die and lower die
Gas vent core is equipped in wall-shaped face, and the quantity of gas vent core is corresponding with screw thread the number of turns of plastic tube.
5. the injection mold of hollow thread plastic tube according to claim 1, it is characterised in that: the lower die is in corresponding plastics
Glue feeding channel is equipped at pipe one end, and glue feeding channel is equipped with connection forming cavity, two horizontally arranged glue-feeders.
6. the injection mold of hollow thread plastic tube according to claim 1, it is characterised in that: between the upper die and lower die
Hole column combination equipped with die closing contraposition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821779627.1U CN209365262U (en) | 2018-10-31 | 2018-10-31 | A kind of injection mold of hollow thread plastic tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821779627.1U CN209365262U (en) | 2018-10-31 | 2018-10-31 | A kind of injection mold of hollow thread plastic tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209365262U true CN209365262U (en) | 2019-09-10 |
Family
ID=67835388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821779627.1U Expired - Fee Related CN209365262U (en) | 2018-10-31 | 2018-10-31 | A kind of injection mold of hollow thread plastic tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209365262U (en) |
-
2018
- 2018-10-31 CN CN201821779627.1U patent/CN209365262U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101559930B1 (en) | Hollow body manufacturing method | |
| AU662856B2 (en) | A process and an apparatus for producing insulators | |
| US3969060A (en) | Apparatus for deforming a tubular slug of thermoplastic material | |
| CN104226777B (en) | A kind of deep camber thin-wall member resisting medium external pressure shaping method | |
| CN205653365U (en) | Program control bar -shaped propellant powder forming die that ftractures | |
| DE2720448B1 (en) | Device for the production of hollow plastic bodies | |
| CN209365262U (en) | A kind of injection mold of hollow thread plastic tube | |
| CN207059114U (en) | A kind of automobile silencing pipe shaping mould | |
| JP2002166452A (en) | Method and apparatus for molding precision molding | |
| CN109249592A (en) | Method for manufacturing the injection mold of moulding and for manufacturing moulding | |
| CN104972575A (en) | Silicone rubber air bag forming method for manufacturing of heat insulating layer of engine | |
| US20200282610A1 (en) | Combined injection moulding and extrusion | |
| CN108839305A (en) | A kind of mold for making wire drawing film, method and wire drawing film | |
| JPS62225309A (en) | Method and device for injection mold molding of cylindrical spare forming material | |
| CN211031020U (en) | Injection mold structure and mold thereof | |
| JP2010089398A (en) | Two-color molding and method of manufacturing the same | |
| CN210389945U (en) | Assembled bottle lid injection mold | |
| CN205159020U (en) | Composite covering anti -burst forming die | |
| CN110654005A (en) | Injection molding rubber-coated rubber pipe mold | |
| CN217514517U (en) | Die cavity structure with movable insert and bottle blowing die | |
| CN210363084U (en) | Anti-eccentricity structure of single-pass tubular plastic product | |
| CN215825837U (en) | Double-thread die for preparing thermoplastic plastic products | |
| CN110355946B (en) | Assembled bottle lid injection mold | |
| CN218366071U (en) | Forming die for hollow composite material with holes | |
| CN208681980U (en) | A kind of precision infusion set mold |
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: 20190910 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |