CN105034281A - Hot runner system - Google Patents
Hot runner system Download PDFInfo
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- CN105034281A CN105034281A CN201410795049.0A CN201410795049A CN105034281A CN 105034281 A CN105034281 A CN 105034281A CN 201410795049 A CN201410795049 A CN 201410795049A CN 105034281 A CN105034281 A CN 105034281A
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- heat
- manifold system
- needle
- board
- piston
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Abstract
The invention discloses a hot runner system which includes a bearing board, an upper die arranging plate, a diversion front supporting board and a diversion back supporting board. A diversion board system can be adjusted through front-and-back accurate adjustment with a precision screw rod to regulate the distance between a hot nozzle of a fixed diversion board system and a hot nozzle of an adjustable diversion board system, so that the system is adaptable to products having different distances. Meanwhile, the length that a valve needle stretched out from the hot nozzle can be regulated through a position limiter, thereby enabling the system to be adaptable to products having different thickness. The hot runner system solves the defect that a hot runner system in the prior art can only produce products in single distance and single thickness. In addition, the hot runner system is strong in universality and is reduced in requirement on processing precision of the valve needles and such parts, so that the production cost is reduced.
Description
Technical field
The present invention relates to injection-moulding device, particularly a kind of TOP-TIP.
Background technology
General injection-moulding device, as: low-pressure injection molding machine, can be provided with TOP-TIP usually.As a common components of injection mold system, TOP-TIP ensures that the plastics of runner and cast gate keep molten condition by the way of heating.
As shown in Figure 1, traditional TOP-TIP, comprises primary structure accessory: heat is chewed (also known as, hot mouth) 101, board 102, shop bolt 103, manifold system 104, flow distribution plate gripper shoe 105, piston 106, upper code mask 107, cylinder cover plate 108.Wherein, cylinder block is directly processed on upper code mask 107, and the needle that heat is chewed in 101 directly connects with piston 106, and the maximum length that needle stretches out is determined to bottom along cylinder block activity by piston 106.It is unique that this kind of structure causes needle length, and applicability is poor, changes product needed and changes system; Secondly, the requirement on machining accuracy of needle length is higher, the length that needle stretches out is all relevant with the machining tolerance of board 102, the machining tolerance of flow distribution plate gripper shoe 105 and the deep processing tolerance of cylinder block on upper code mask 107, and finally cause cumulative limit to be difficult to control, processing cost is high; Further, the position that heat chews 101 can not adjust, and requirement on machining accuracy is high.
It can thus be appreciated that, the TOP-TIP of prior art, flow distribution plate only has one, heat is chewed, needle is unified is fixed on flow distribution plate, be only applicable to the product of single spacing, simultaneously also inapplicable to the product of different needle length requirement, the accuracy of manufacture for mould requires quite strict, the versatility of hot flow path is extremely low, and the product needed of serial different size of the same race is equipped with the TOP-TIP of different size.
Summary of the invention
The object of the invention is open a kind of TOP-TIP, to solve the defect that set of system in prior art TOP-TIP can only produce single spacing, single thickness product.
To achieve these goals, the invention provides a kind of TOP-TIP, comprise board, upper code mask, shunting front end panel, shunting rear bearing sheet, described shunting front end panel is fixed on the front end of described board and upper code mask, described shunting rear bearing sheet is fixed on the rear end of described board and upper code mask, makes described board, upper code mask, shunting front end panel and shunt rear bearing sheet to form shaped as frame supporting seat; Wherein, be provided with manifold system, regulate guide pillar, accurate screw rod in described shaped as frame supporting seat, described manifold system comprises fixing manifold system, regulates manifold system, and described fixing manifold system is fixed in described shaped as frame supporting seat; Described adjustment manifold system is connected with accurate screw drive, and the adjustable described adjustment manifold system of described accurate screw rod is moved forward and backward along adjustment guide pillar; Described manifold system is provided with heat and chews assembly, described heat is chewed assembly and is comprised that heat is chewed, cylinder, described heat is provided with needle in chewing, piston is provided with in described cylinder, the top of described needle is connected with piston, make described piston that needle can be driven to move up and down, realize described needle contraction heat and chew interior or stretch out outside heat chews; Described cylinder is provided with for regulate described needle to stretch out stop that heat chews outer length.
Wherein, described stop comprises adjusting nut, adjusting screw(rod); The bottom of described adjusting screw(rod) is connected with the top of described piston, and the top of described adjusting screw(rod) stretches out in described cylinder, and described adjusting nut is threadedly connected to described adjusting screw(rod), and the top of described cylinder is provided with flange; Described needle stretch out heat chew outer time, the bottom of described adjusting nut props up the flange of described cylinder.
Wherein, described heat chew assembly also comprise heating circle, valve needle cover, for promote described piston injecting glue upwards open gas port, for promote described piston downward injecting glue pass gas port.
Wherein, described manifold system is provided with the described heat of two covers and chews assembly.
Wherein, described manifold system is also provided with gum intaking passage, flow distribution plate, thermal insulation board.
Wherein, described fixing manifold system is fixed on described board by shop bolt.
Beneficial effect of the present invention is: in use, regulates manifold system by fine adjustment before and after accurate screw rod, chew to regulate the heat of fixing manifold system and regulate the heat of manifold system chew between distance, thus be suitable for the product of different spacing; Meanwhile, regulate needle to stretch out heat by stop and chew outer length, thus be suitable for the product of different-thickness.Therefore, highly versatile of the present invention, reduces the requirement on machining accuracy of the parts such as needle, can cut down finished cost.
Accompanying drawing explanation
Fig. 1 is the front view of traditional TOP-TIP.
Fig. 2 is the front view of TOP-TIP of the present invention.
Fig. 3 is the left view of TOP-TIP of the present invention.
Fig. 4 is the generalized section of a set of manifold system of TOP-TIP of the present invention.
Comprise in Fig. 2 ~ 4:
1---board, 2---upper code mask, 3---shunting front end panel, 4---shunting rear bearing sheet, 51---fixing manifold system, 511---shop bolt, 52---regulate manifold system, 53---gum intaking passage, 54---flow distribution plate, 55---thermal insulation board, 6---regulate guide pillar, 7---accurate screw rod, 8---heat chews assembly, 81---heat is chewed, 82---cylinder, 821---flange, 83---needle, 84---piston, 85---heating circle, 86---valve needle cover, 87---injecting glue opens gas port, 88---injecting glue closes gas port, 91---adjusting nut, 92---adjusting screw(rod).
Detailed description of the invention
Below in conjunction with accompanying drawing, a specific embodiment of the present invention is described in detail, but is to be understood that protection scope of the present invention not by the restriction of detailed description of the invention.
Please refer to Fig. 2 ~ 4, TOP-TIP of the present invention, comprise board 1, upper code mask 2, shunting front end panel 3, shunting rear bearing sheet 4, shunting front end panel 3 is fixed on the front end of board 1 and upper code mask 2, shunting rear bearing sheet 4 is fixed on board 1 and the rear end of upper code mask 2, makes board 1, upper code mask 2, shunting front end panel 3 and shunt rear bearing sheet 4 to form shaped as frame supporting seat.
Wherein, as shown in Figure 2,3, be provided with manifold system in shaped as frame supporting seat, regulate guide pillar 6, accurate screw rod 7.Manifold system comprises fixing manifold system 51, regulates manifold system 52.Fixing manifold system 51 is fixed in shaped as frame supporting seat, makes fixing manifold system 51 accurately locate and can not slide, and fixing manifold system 51 can be fixed on board 1 by shop bolt 511.Manifold system 52 and accurate screw rod 7 is regulated to be in transmission connection, the adjustable adjustment manifold system 52 of accurate screw rod 7 is moved forward and backward along adjustment guide pillar 6, namely regulate manifold system 52 under the fine adjustment of accurate screw rod 7 can along adjustment guide pillar 6 slide, thus achieve heat chew 81 fore-aft adjustable joint.Specifically, regulate the front end of guide pillar 6, rear end is connected to shunting front end panel 3, shunting rear bearing sheet 4, fixing manifold system 51 is positioned at the rear regulating manifold system 52, and accurate screw rod 7 is installed on the outside of shunting front end panel 3.In use, regulate manifold system 52 by its position of fine adjustment before and after accurate screw rod 7, to regulate the heat of fixing manifold system 51 to chew 81 and regulate the heat of manifold system 52 to chew distance between 81, thus be suitable for the product of different spacing.
Wherein, as shown in Figure 4, manifold system is provided with heat and chews assembly 8.Heat is chewed assembly 8 and is comprised that heat chews 81, cylinder 82.Heat is chewed in 81 and is provided with needle 83, piston 84 is provided with in cylinder 82, the top of needle 83 is connected with piston 84, make piston 84 that needle 83 can be driven to move up and down, realize needle 83 contraction heat and to chew in 81 (namely needle 83 is opening) or stretch out heat and chew 81 outer (namely needle 83 is closed condition).Cylinder 82 is provided with for regulate needle 83 to stretch out stop that heat chews the length outside 81.In use, regulate needle 83 to stretch out heat by stop and chew length outside 81, thus be suitable for the product of different-thickness.
Preferably, stop comprises adjusting nut 91, adjusting screw(rod) 92.The bottom of adjusting screw(rod) 92 is connected with the top of piston 84, and the top of adjusting screw(rod) 92 stretches out in cylinder 82, and adjusting nut 91 is threadedly connected to adjusting screw(rod) 92, and the top of cylinder 82 is provided with flange 821; Needle 83 stretch out heat chew 81 outer time, the bottom of adjusting nut 91 props up the flange 821 of cylinder 82.Due to operationally, the bottom of adjusting nut 91 props up the flange 821 of cylinder 82, limits needle 83 and stretches out heat and chew length outside 81, so, only have and needle 83 could be regulated to stretch out heat by adjusting nut 91 to chew length outside 81.The Principles of Regulation of this stop are: when needing to regulate needle 83 to stretch out the length that heat chews outside 81, adjusting nut 91 up can be turned, and make adjusting screw(rod) 92 stretch into length in cylinder 82; When need regulate needle 83 stretch out the heat length of chewing outside 81 shorten time, adjusting nut 91 down can be turned, the length that adjusting screw(rod) 92 is stretched in cylinder 82 shortens.The structure of this stop, has the advantages such as convenient and practical.Length due to needle 83 is controlled by piston 84, all sheet material has machining tolerance, after assembling, cumulative limit can become large, for reducing difficulty of processing, simultaneously in order to the length adapting to different product demand differs, at cylinder 82 tip designs adjusting screw(rod) 92 and adjusting nut 91, regulate by the spacing of adjusting nut 91 length that needle 83 stretches out, thus reduce difficulty of processing, save production cost.
Particularly, refer to Fig. 4, heat is chewed assembly 8 and is also comprised heating circle 85, valve needle cover 86, opens gas port 87 for promoting piston 84 injecting glue upwards, close gas port 88 for promoting the downward injecting glue of piston 84; Manifold system is also provided with gum intaking passage 53, flow distribution plate 54, thermal insulation board 55.Wherein, manifold system is provided with two cover heat and chews assembly 8, and as shown in Figure 4, in figure, left side needle 83 is closed condition, and right side needle 83 is opening.As shown in Figure 2,3, in the present embodiment, fixing manifold system 51 is provided with two cover heat and chews assembly 8, regulates manifold system 52 to be also provided with two cover heat and chews assembly 8, thus forms the TOP-TIP that four heat chew 81.
The operation principle of TOP-TIP of the present invention is: refer to Fig. 4, the PUR of molten condition enters flow distribution plate 54 from gum intaking passage 53, flow distribution plate 54 pairs of PURs are shunted, PUR flows into each heat and chews in 81, when compressed air from injecting glue open gas port 87 enter cylinder 82 time, needle 83 contraction heat is chewed in 81, and PUR is chewed 81 mouthfuls from heat and injected mould.For ensureing product appearance, when needle 83 is closed condition, needle 83 end need be just concordant with product surface.
In sum, TOP-TIP of the present invention, regulates manifold system by fine adjustment before and after accurate screw rod, chew to regulate the heat of fixing manifold system and regulate the heat of manifold system chew between distance, thus be suitable for the product of different spacing; Meanwhile, regulate needle to stretch out heat by stop and chew outer length, thus be suitable for the product of different-thickness.Therefore, TOP-TIP of the present invention, can be widely used in various injection-moulding device, as single station low-pressure injection molding machine, double low-pressure injection molding machine, workbench move left and right hot flow path low-pressure injection molding machine, rotary table hot flow path low-pressure injection molding machine etc.
Finally should be noted that; above embodiment is only in order to illustrate technical scheme of the present invention; but not limiting the scope of the invention; although done to explain to the present invention with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; technical scheme of the present invention is modified or equivalent replacement, all belong to protection scope of the present invention.
Claims (6)
1. a TOP-TIP, comprise board, upper code mask, shunting front end panel, shunting rear bearing sheet, described shunting front end panel is fixed on the front end of described board and upper code mask, described shunting rear bearing sheet is fixed on the rear end of described board and upper code mask, make described board, upper code mask, shunting front end panel and shunt rear bearing sheet to form shaped as frame supporting seat, it is characterized in that:
Be provided with manifold system in described shaped as frame supporting seat, regulate guide pillar, accurate screw rod, described manifold system comprises fixing manifold system, regulates manifold system, and described fixing manifold system is fixed in described shaped as frame supporting seat; Described adjustment manifold system is connected with accurate screw drive, and the adjustable described adjustment manifold system of described accurate screw rod is moved forward and backward along adjustment guide pillar;
Described manifold system is provided with heat and chews assembly, described heat is chewed assembly and is comprised that heat is chewed, cylinder, described heat is provided with needle in chewing, piston is provided with in described cylinder, the top of described needle is connected with piston, make described piston that needle can be driven to move up and down, realize described needle contraction heat and chew interior or stretch out outside heat chews; Described cylinder is provided with for regulate described needle to stretch out stop that heat chews outer length.
2. TOP-TIP according to claim 1, is characterized in that: described stop comprises adjusting nut, adjusting screw(rod); The bottom of described adjusting screw(rod) is connected with the top of described piston, and the top of described adjusting screw(rod) stretches out in described cylinder, and described adjusting nut is threadedly connected to described adjusting screw(rod), and the top of described cylinder is provided with flange; Described needle stretch out heat chew outer time, the bottom of described adjusting nut props up the flange of described cylinder.
3. TOP-TIP according to claim 2, is characterized in that: described heat is chewed assembly and also comprised heating circle, valve needle cover, opens gas port for promoting described piston injecting glue upwards, close gas port for promoting the downward injecting glue of described piston.
4. TOP-TIP according to claim 3, is characterized in that: described manifold system is provided with the described heat of two covers and chews assembly.
5. TOP-TIP according to claim 4, is characterized in that: described manifold system is also provided with gum intaking passage, flow distribution plate, thermal insulation board.
6. TOP-TIP according to claim 1, is characterized in that: described fixing manifold system is fixed on described board by shop bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410795049.0A CN105034281B (en) | 2014-12-18 | 2014-12-18 | hot runner system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410795049.0A CN105034281B (en) | 2014-12-18 | 2014-12-18 | hot runner system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105034281A true CN105034281A (en) | 2015-11-11 |
| CN105034281B CN105034281B (en) | 2017-03-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410795049.0A Active CN105034281B (en) | 2014-12-18 | 2014-12-18 | hot runner system |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5094603A (en) * | 1990-12-17 | 1992-03-10 | Gellert Jobst U | Thermal valve gated injection molding apparatus with melt distribution plate |
| JPH1052837A (en) * | 1996-08-12 | 1998-02-24 | Fuiisa Kk | Nozzle for injection molding |
| CN1513661A (en) * | 2002-12-03 | 2004-07-21 | ����ģ | Thermal flow passage coinjection nozzle |
| CN201841644U (en) * | 2010-11-08 | 2011-05-25 | 柳道万和(苏州)热流道系统有限公司 | Improved structure of hot runner system |
| CN204398257U (en) * | 2014-12-18 | 2015-06-17 | 东莞市天赛塑胶机械有限公司 | Top-tip |
-
2014
- 2014-12-18 CN CN201410795049.0A patent/CN105034281B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5094603A (en) * | 1990-12-17 | 1992-03-10 | Gellert Jobst U | Thermal valve gated injection molding apparatus with melt distribution plate |
| JPH1052837A (en) * | 1996-08-12 | 1998-02-24 | Fuiisa Kk | Nozzle for injection molding |
| CN1513661A (en) * | 2002-12-03 | 2004-07-21 | ����ģ | Thermal flow passage coinjection nozzle |
| CN201841644U (en) * | 2010-11-08 | 2011-05-25 | 柳道万和(苏州)热流道系统有限公司 | Improved structure of hot runner system |
| CN204398257U (en) * | 2014-12-18 | 2015-06-17 | 东莞市天赛塑胶机械有限公司 | Top-tip |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105034281B (en) | 2017-03-22 |
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