CN204894404U - Needle mounting structure - Google Patents
Needle mounting structure Download PDFInfo
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- CN204894404U CN204894404U CN201520512253.7U CN201520512253U CN204894404U CN 204894404 U CN204894404 U CN 204894404U CN 201520512253 U CN201520512253 U CN 201520512253U CN 204894404 U CN204894404 U CN 204894404U
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- mounting structure
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Abstract
The utility model discloses a needle mounting structure, including the piston and install in needle on the piston, needle mounting structure still includes the needle mounting, install with piston and needle cooperation respectively at needle mounting both ends. The utility model discloses a needle and piston are installed to the needle mounting, when damaging appears in the needle, may not dismantle the cylinder body, directly take out the change of carrying out the needle with the needle mounting, and easy maintenance has saved maintenance duration, improve work efficiency.
Description
Technical field
The utility model belongs to hot runner molding technology field, is specifically related to the needle mounting structure of cylinder in a kind of hot runner moulding system.
Background technology
Hot flow path (hotrunner) uses in injection mold, the plastics of thawing is injected into the heating component set in the cavity of mould.TOP-TIP is generally made up of a few parts such as hot nozzle, flow distribution plate, temperature control box and annexes.Hot nozzle form directly determines that TOP-TIP selects the manufacture with mould, TOP-TIP is divided into open TOP-TIP and valve needle type hot flow passage system thus often accordingly.
Valve needle type hot flow passage system comprises needle mounting structure, at present, needle mounting structure generally includes the component such as piston, needle flow distribution plate, needle is directly connected with piston by straight trough, after being heated when actual injection moulding use procedure, flow distribution plate drives needle to expand (expansion direction is indefinite), needle connects this section of piston and can only move along piston hanging platform groove direction, this groove is generally a straight trough, straight trough determines needle and can only expand toward straight trough direction, needle greatly may be caused to occur bending and deformation, and serious words can cause the faults such as needle ruptures and needle is stuck; Meanwhile, existing needle peripheral clearance is comparatively large, surrounding can to slide impacts such as also can eliminating needle fracture that thermal expansion brings, but could keep in repair after need dismantling cylinder cap, piston etc., its complex operation.
In view of this, be necessary to provide a kind of needle mounting structure.
Utility model content
The purpose of this utility model is to provide a kind of needle mounting structure.
To achieve these goals, the technical scheme that provides of the utility model embodiment is as follows:
A kind of needle mounting structure, comprise piston and be installed on the needle on described piston, described needle mounting structure also comprises needle fixture, and described needle fixture two ends coordinate with piston and needle respectively installs.
As further improvement of the utility model, described needle fixture comprises matrix and is positioned at the first installation portion and second installation portion of matrix both sides, and the first installation portion and the second installation portion coordinate with piston and needle respectively to be installed.
As further improvement of the utility model, the installation direction of described first installation portion and piston is the first installation direction, the installation direction of the second installation portion and needle is the second installation direction, and the angle between described first installation direction and the second installation direction is 90 °.
As further improvement of the utility model, described piston comprises piston main body portion and is positioned at the hanging platform below piston main body portion, described hanging platform is provided with the accepting groove of lengthwise open, in the removable accepting groove be installed on described hanging platform of the first installation portion on described needle fixture.
As further improvement of the utility model, described accepting groove inwall is provided with the first stopper section relatively extended along the first installation direction, described first installation portion is provided with the first draw-in groove along the first installation direction correspondence, and needle fixture is coordinated along the removable installation of the first installation direction with the first draw-in groove by described first stopper section with piston.
As further improvement of the utility model, described accepting groove comprises the first resettlement section and the second resettlement section, and the corresponding accepting groove inwall of described second resettlement section is provided with the first stopper section.
As further improvement of the utility model, the width of described first draw-in groove is more than or equal to the thickness of the first stopper section.
As further improvement of the utility model, described needle is provided with the second draw-in groove along the second installation direction correspondence, described second installation portion comprises the connecting portion be connected with matrix and the second stopper section be connected with connecting portion, and described needle and needle fixture to be coordinated with the second draw-in groove by described second stopper section and fixedly mount along the second installation direction.
As further improvement of the utility model, the width of described second draw-in groove is more than or equal to the thickness of the second stopper section.
As further improvement of the utility model, described second installation portion being provided with the opening for installing needle, after needle and the second installation portion fixedly mount, the elastic ferrule covering described opening being installed outside the second installation portion.
The beneficial effects of the utility model are:
By needle fixture, needle and piston are installed, when damaging appears in needle, can not cylinder body be dismantled, directly needle fixture be taken out the replacing carrying out needle, easy to maintenance, save maintenance time, increase work efficiency;
First installation direction of the first installation portion and piston and the angle between the second installation portion and the second installation direction of needle are 90 °, when needle is in injection moulding process during expanded by heating, can be slided in respective draw-in groove by needle fixture and needle and eliminate the impact that brings of expanding, greatly reduce the appearance of the faults such as needle head fracture;
Accepting groove end on hanging platform adopts round-corner transition, can prevent end stress from concentrating, enhance the intensity of hanging platform;
Elastic ferrule shields, and can prevent needle landing, increases the installation stability of needle.
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, the accompanying drawing that the following describes is only some embodiments recorded in the 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 structural representation in the utility model one preferred embodiment after the installation of needle mounting structure;
Fig. 2 is the detonation configuration schematic diagram of needle mounting structure in the utility model one preferred embodiment;
Fig. 3 a, 3b are the perspective view of the utility model one preferred embodiment needle fixture different visual angles;
Fig. 4 a is the perspective view of piston in the utility model one preferred embodiment, and Fig. 4 b is the perspective view of hanging platform on piston in Fig. 4 a;
Fig. 5 is the partial structurtes schematic diagram of needle in the utility model one preferred embodiment.
Detailed description of the invention
Below with reference to detailed description of the invention shown in the drawings, the utility model is described in detail.But these embodiments do not limit the utility model, the structure that those of ordinary skill in the art makes according to these embodiments, method or conversion functionally are all included in protection domain of the present utility model.
In each diagram of the present utility model, for the ease of diagram, some size of structure or part can relative to other structure or partial enlargement, therefore, only for illustrating the basic structure of theme of the present utility model.
Used herein such as " on ", " top ", D score, the representation space relative position such as " below " term be describe a unit as shown in the drawings or the feature relation relative to another unit or feature for the object being convenient to illustrate.The term of relative space position can be intended to comprise equipment in the different azimuth used or in work except orientation shown in figure.Such as, if by the equipment upset in figure, be then described to be positioned at other unit or feature " below " or " under " unit will be positioned at other unit or feature " top ".Therefore, exemplary term " below " can include above and below these two kinds of orientation.Equipment can otherwise be directed (90-degree rotation or other towards), and correspondingly herein interpreted use with the description language of space correlation.
Further, although should be understood that first, second grade of term can be used to describe various element or structure in this article, these are described the restriction that object should not be subject to these terms.These terms are only for being distinguished from each other out these description objects.Such as, the first installation portion can be called as the second installation portion, and the second installation portion also can be called as the first installation portion similarly, and this does not deviate from protection domain of the present utility model.
Shown in ginseng Fig. 1, a kind of needle mounting structure in the present embodiment, comprise piston 10, needle 20, needle fixture 30 and elastic ferrule 40, needle fixture 30 two ends coordinate with piston 10 and needle 20 respectively installs, and elastic ferrule 40 is installed on the outside of needle fixture 30.
Shown in composition graphs 2, Fig. 3 a, 3b, needle fixture 30 comprises matrix 31 and is positioned at the first installation portion 32 of matrix both sides 30 and the second installation portion 33, first installation portion 32 and the second installation portion 33 and coordinates with piston 10 and needle 20 respectively and install.
Again shown in composition graphs 4a, 4b, the mounting means of needle fixture 30 and piston 10 in the present embodiment is described in detail.
Needle fixture 30 comprises matrix 31, the shape of matrix 31 is preferably set to cylindrical, and the first installation portion 32 is positioned at matrix 31 side and one-body molded with matrix 31, preferably, in the present embodiment, the first installation portion 32 is also set to cylindrical, and the cross section of the first installation portion 32 is less than the cross section of matrix 31.
The hanging platform 12 that piston 10 comprises piston main body portion 11 and is positioned at below piston main body portion 11, hanging platform is provided with the accepting groove 121 of lengthwise open, the first installation portion 32 on needle fixture is along in the removable accepting groove 121 be installed on hanging platform of accepting groove longitudinally, and defining needle fixture in the present embodiment along the direction of motion of accepting groove is the first installation direction.
Preferably, in the present embodiment, the end of the accepting groove 121 of lengthwise open adopts round-corner transition, can prevent end stress from concentrating, enhance the intensity of hanging platform.Certainly, the end of accepting groove also can be set to other shapes in other embodiments, as right angle etc.
Shown in ginseng Fig. 3 b, the corresponding accepting groove inwall that accepting groove 121 comprises the first resettlement section 1211 and the second resettlement section, resettlement section 1212, second is provided with along the first installation direction the first stopper section 1213 relatively extended.Correspondingly, shown in ginseng Fig. 3 a, 3b, the first installation portion 32 is provided with the first draw-in groove 321 along the first installation direction correspondence, and the bottom surface of this first draw-in groove 321 is plane, and the width of the first draw-in groove is more than or equal to the thickness of the first stopper section.
Owing to not being provided with the first stopper section in the first resettlement section 1211, during installation, first load in the accepting groove 121 of lengthwise open by vertical from the first resettlement section 1211 for the first installation portion 32 of needle fixture 30, until the first draw-in groove 321 on the first installation portion 31 and the first stopper section 1213 are in sustained height, then needle fixture 30 is moved along the first installation direction, the first stopper section 1213 is made to be contained in the first draw-in groove 321, the first stopper section can be completed install with coordinating of the first draw-in groove, needle fixture and piston installation on the first installation direction.
Should be understood that, aforesaid way is only the mounting means of the first installation portion and hanging platform in a preferred embodiment, as long as the mounting structure that can realize above-mentioned installation effect in other embodiments all belongs to the category that the utility model is protected.
Shown in composition graphs 3a, 3b, Fig. 5, the mounting means of needle fixture 30 and needle 20 in the present embodiment is described in detail.
Needle fixture 30 is provided with the second installation portion 33 at matrix 31 relative to the other side of the first installation portion 32, similarly, second installation portion 33 is also one-body molded with matrix 31, the end of needle 20 can fixedly mount with the second installation portion 33, and the installation direction defining needle 20 and the second installation portion 33 in the present embodiment is the second installation direction.
Second installation portion 33 comprises the connecting portion 331 be connected with matrix 31 and the second stopper section 332 be connected with connecting portion 331.Wherein, connecting portion 331 and the second stopper section 332 all arrange an opening (non-label), the installation direction of opening direction and needle 20.Wherein:
The medial surface of connecting portion 331 is circular arc, the cross section setting corresponding with the end cross-sectional of needle 20 of this medial surface, and connecting portion 331 encloses the 3rd roughly rounded resettlement section 3311 of formation, and after installing, the end of needle 20 can be contained in the 3rd resettlement section 3311;
The 4th resettlement section 3321, resettlement section the 3321, four that second stopper section 332 is enclosed to form lengthwise open is roughly square, and preferably, the 4th end, resettlement section 3321 adopts round-corner transition, can prevent end stress from concentrating, enhance the intensity of the second installation portion.Accordingly, needle 20 is provided with the second draw-in groove 21 along the second installation direction correspondence, the bottom surface of this second draw-in groove 21 is plane, and the width of the second draw-in groove is more than or equal to the thickness of the second stopper section.
During installation, first needle is aimed at the opening of the second installation portion 33, make needle end corresponding with connecting portion 331 position, second draw-in groove 21 is corresponding with the second position, stopper section 332 simultaneously, installed along the second installation direction by needle 20, after installing, needle end is contained in the 3rd resettlement section 3311, and the second draw-in groove 21 is contained in the 4th resettlement section 3321, meanwhile, the fillet of the circular arc side and the 4th end, resettlement section 3321 that connect the second draw-in groove fits.
Should be understood that, aforesaid way is only the mounting means of the second installation portion and needle in a preferred embodiment, as long as the mounting structure that can realize above-mentioned installation effect in other embodiments all belongs to the category that the utility model is protected.
Further, in the present embodiment, after needle 20 and the second installation portion 33 fixedly mount, the elastic ferrule 40 of covering second installation portion opening is installed outside the second installation portion 33.Elastic ferrule shields, and can prevent needle landing, increases the installation stability of needle.
Correspondingly, shown in ginseng Fig. 3 a, 3b, the area of the second installation portion 33 is slightly less than the area of matrix 31, second installation portion 33 to cave inward certain distance relative to matrix 31, simultaneously, second installation portion 33 is provided with outward extending protuberance 3322 in the outside away from matrix 31, elastic ferrule 40 is arranged on the lateral surface of the second installation portion 33 between protuberance 3322 and matrix 31, due to the design of protuberance 3322 and matrix 31, the fixed installation of elastic ferrule 40 can be ensured, prevent elastic ferrule landing on the second installation portion.
It should be noted that, elastic ferrule 40 mentioned in the present embodiment also can adopt other replacement schemes, as arranged Elastic buckle at the opening part of the second installation portion 33 or adopting other external fixation devices to realize the fixing of needle and needle fixture, repeat no longer one by one at this.
Wherein, angle in the present embodiment between the first installation direction (installation direction of the first installation portion and piston) and the second installation direction (installation direction of the second installation portion and needle) is 90 °, when needle is in injection moulding process during expanded by heating, its expansion direction is also uncertain, at this moment can be slided in respective draw-in groove by needle fixture and needle and eliminate the impact that brings of expanding, two draw-in grooves are 90 °, therefore needle can move towards two directions in 90 degree, greatly can reduce the appearance of the faults such as needle head fracture.
It should be noted that, angle between first installation direction and the second installation direction is 90 ° and is only a preferred embodiment of the present utility model, this angle can adjust in other embodiments, as long as ensure the first installation direction and the second installation direction is not parallel all can realize above-mentioned effect.
In present embodiment, the installation steps of whole needle mounting structure specifically comprise:
1. the draw-in groove on needle is stuck on needle fixture;
2. elastic ferrule is put needle fixture, cutting ferrule shields, and prevents needle landing.
3. needle is connected with the first stopper section in hanging platform by the draw-in groove of needle fixture together with needle fixture;
4. needle installs, and the whole needle mounting structure comprising piston and needle can be installed in the cylinder body of cylinder in hot runner moulding system.
As can be seen from the above technical solutions, needle mounting structure of the present utility model has following beneficial effect:
By needle fixture, needle and piston are installed, when damaging appears in needle, can not cylinder body be dismantled, directly needle fixture be taken out the replacing carrying out needle, easy to maintenance, save maintenance time, increase work efficiency;
First installation direction of the first installation portion and piston and the angle between the second installation portion and the second installation direction of needle are 90 °, when needle is in injection moulding process during expanded by heating, can be slided in respective groove by needle fixture and needle and eliminate the impact that brings of expanding, greatly reduce the appearance of the faults such as needle head fracture;
Accepting groove end on hanging platform adopts round-corner transition, can prevent end stress from concentrating, enhance the intensity of hanging platform;
Elastic ferrule shields, and can prevent needle landing, increases the installation stability of needle.
Be to be understood that, although this description is described according to embodiment, but not each embodiment only comprises an independently technical scheme, this narrating mode of description is only for clarity sake, those skilled in the art should by description integrally, technical scheme in each embodiment also through appropriately combined, can form other embodiments that it will be appreciated by those skilled in the art that.
A series of detailed description listed is above only illustrating for feasibility embodiment of the present utility model; they are also not used to limit protection domain of the present utility model, all do not depart from the utility model skill equivalent implementations of doing of spirit or change all should be included within protection domain of the present utility model.
Claims (10)
1. a needle mounting structure, comprises piston and is installed on the needle on described piston, it is characterized in that, described needle mounting structure also comprises needle fixture, and described needle fixture two ends coordinate with piston and needle respectively installs.
2. needle mounting structure according to claim 1, is characterized in that, described needle fixture comprises matrix and is positioned at the first installation portion and second installation portion of matrix both sides, and the first installation portion and the second installation portion coordinate with piston and needle respectively to be installed.
3. needle mounting structure according to claim 2, it is characterized in that, the installation direction of described first installation portion and piston is the first installation direction, and the installation direction of the second installation portion and needle is the second installation direction, and the angle between described first installation direction and the second installation direction is 90 °.
4. needle mounting structure according to claim 2, it is characterized in that, described piston comprises piston main body portion and is positioned at the hanging platform below piston main body portion, described hanging platform is provided with the accepting groove of lengthwise open, in the removable accepting groove be installed on described hanging platform of the first installation portion on described needle fixture.
5. needle mounting structure according to claim 4, it is characterized in that, described accepting groove inwall is provided with the first stopper section relatively extended along the first installation direction, described first installation portion is provided with the first draw-in groove along the first installation direction correspondence, and needle fixture is coordinated along the removable installation of the first installation direction with the first draw-in groove by described first stopper section with piston.
6. needle mounting structure according to claim 5, is characterized in that, described accepting groove comprises the first resettlement section and the second resettlement section, and the corresponding accepting groove inwall of described second resettlement section is provided with the first stopper section.
7. needle mounting structure according to claim 5, is characterized in that, the width of described first draw-in groove is more than or equal to the thickness of the first stopper section.
8. needle mounting structure according to claim 2, it is characterized in that, described needle is provided with the second draw-in groove along the second installation direction correspondence, described second installation portion comprises the connecting portion be connected with matrix and the second stopper section be connected with connecting portion, and described needle and needle fixture to be coordinated with the second draw-in groove by described second stopper section and fixedly mount along the second installation direction.
9. needle mounting structure according to claim 8, is characterized in that, the width of described second draw-in groove is more than or equal to the thickness of the second stopper section.
10. needle mounting structure according to claim 2, is characterized in that, described second installation portion is provided with the opening for installing needle, after needle and the second installation portion fixedly mount, is provided with the elastic ferrule covering described opening outside the second installation portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520512253.7U CN204894404U (en) | 2015-07-15 | 2015-07-15 | Needle mounting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520512253.7U CN204894404U (en) | 2015-07-15 | 2015-07-15 | Needle mounting structure |
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| CN204894404U true CN204894404U (en) | 2015-12-23 |
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| CN201520512253.7U Active CN204894404U (en) | 2015-07-15 | 2015-07-15 | Needle mounting structure |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106015162A (en) * | 2016-07-27 | 2016-10-12 | 苏州好特斯模具有限公司 | Double-valve-needle elliptic-type piston assembly |
| CN106346713A (en) * | 2015-07-15 | 2017-01-25 | 柳道（青岛）热流道系统有限公司 | Valve needle mounting structure |
| CN107685428A (en) * | 2016-08-05 | 2018-02-13 | 柳道万和(苏州)热流道系统有限公司 | Needle length adjustment formula drive cylinder and its adjusting method |
| CN108044881A (en) * | 2018-01-16 | 2018-05-18 | 柳道万和(苏州)热流道系统有限公司 | For the needle erecting device of mold |
-
2015
- 2015-07-15 CN CN201520512253.7U patent/CN204894404U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106346713A (en) * | 2015-07-15 | 2017-01-25 | 柳道（青岛）热流道系统有限公司 | Valve needle mounting structure |
| CN106346713B (en) * | 2015-07-15 | 2019-03-29 | 柳道（青岛）热流道系统有限公司 | Needle mounting structure |
| CN106015162A (en) * | 2016-07-27 | 2016-10-12 | 苏州好特斯模具有限公司 | Double-valve-needle elliptic-type piston assembly |
| CN106015162B (en) * | 2016-07-27 | 2017-10-31 | 苏州好特斯模具有限公司 | Bivalve pin ellipse piston component |
| CN107685428A (en) * | 2016-08-05 | 2018-02-13 | 柳道万和(苏州)热流道系统有限公司 | Needle length adjustment formula drive cylinder and its adjusting method |
| CN108044881A (en) * | 2018-01-16 | 2018-05-18 | 柳道万和(苏州)热流道系统有限公司 | For the needle erecting device of mold |
| CN108044881B (en) * | 2018-01-16 | 2021-03-02 | 柳道万和(苏州)热流道系统有限公司 | Valve needle mounting device for mold |
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