CN204235821U - A kind of integrated hydraulic needle valve hot flow passage system - Google Patents
A kind of integrated hydraulic needle valve hot flow passage system Download PDFInfo
- Publication number
- CN204235821U CN204235821U CN201420519118.0U CN201420519118U CN204235821U CN 204235821 U CN204235821 U CN 204235821U CN 201420519118 U CN201420519118 U CN 201420519118U CN 204235821 U CN204235821 U CN 204235821U
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- CN
- China
- Prior art keywords
- distribution plate
- needle
- flow distribution
- auxiliary jet
- main burner
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- 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
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- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model relates to TOP-TIP field, refer in particular to a kind of integrated hydraulic needle valve hot flow passage system, comprise flow distribution plate, heating wire rod, main burner, some auxiliary jets, described main burner and auxiliary jet divide the two sides being up and down located at flow distribution plate, be communicated with by runner hole between main burner and auxiliary jet, the side of described flow distribution plate also offers groove, and described heating wire rod is entrenched in groove, and the shape of heating wire rod is consistent with the shape of groove; In side, flow distribution plate auxiliary jet place, corresponding main burner position is provided with central supported cushion block, side, flow distribution plate main burner place, corresponding auxiliary jet position are provided with hydraulic cylinder, described hydraulic cylinder comprises piston, needle, described piston is arranged on hydraulic cylinder inside, described needle is connected with piston, needle is located in auxiliary jet by flow distribution plate, and the end of needle and the opening of auxiliary jet match.Adopt after such scheme, solve flow distribution plate coordinate with nozzle between leakage problem, simplify actuator installation, solve the impact of thermal expansion for needle position.
Description
Technical field
The utility model relates to TOP-TIP field, refers in particular to a kind of integrated hydraulic needle valve hot flow passage system.
Background technology
TOP-TIP is the senior running gate system for mold injection, and it can make raw material remain at suitable melt temperature scope, thus avoids the generation of cold burden waste material, and what its problem not only solving wastage of material also solved injection moulding can automation issues.Hot runner hot mouth is divided into again open and needle valve according to the envelope material form difference of nozzle type, the inner needle without initiatively closing for sealing material of so-called open i.e. cast gate, the closedown of its cast gate mainly relies on leading portion cast gate after injection moulding completes, produce a bit of cold burden plug and block rear end molten plastic outflow with this, it completes this transformation needs to rely on the factor such as appropriate mold temperature and cooling water channel position, all there will be various problem for the engineering plastics, thermal sensitivity plastics etc. being difficult to injection moulding.The hot mouth of needle valve arises at the historic moment for this problem, and its cast gate indoor design has the needle for sealing material, and the motion of needle and the work of injection machine match and realizes moving back and forth according to different injection moulding signals, namely can realize the open and close of needle.The reciprocating motion of needle needs actuator to provide support, and hydraulic cylinder here face serves as the power of driving element needed for the reciprocating motion of needle and provides support.
But for the injection molding art of larger plasthetics, all the time because cylinder export strength little, export strength rigidity not (because air can be compressed) causes the problem of product defect to emerge in an endless stream.In order to change this point, making needle valve hot flow passage system have higher output strength, so change pneumatic linear actuator into hydraulic cylinder, increasing the output strength of actuator with this.When needle in injection moulding only has the resistance when providing the power output > needle of the actuator of strength to overcome for it, needle just can have enough powers to seal cast gate.
Though hydraulic cylinder is good, namely put things right once and for all after not changing hydraulic cylinder into by pneumatic linear actuator.The hot mouth of needle valve system and flow distribution plate all adopt and laminate sliding combined fit system in the past, such fit system relies on the accurate laminating in face and face, processing request for Mould Machining and hot flow path is two high, do not reach requirement as there being any one party in the two namely can leak, leak and be undoubtedly catastrophic trouble for injection moulding, leakage can cause environmental pollution, reduces production efficiency, increase maintenance cost etc. problem.Removing makes the leakage problem of headache, be mounted in mould because hydraulic cylinder is not integrated on flow distribution plate, flow distribution plate high temperature during operation can cause flow distribution plate generation thermal expansion, this means that the needle fairlead be arranged on flow distribution plate can be subjected to displacement along with the expansion of flow distribution plate, cause the needle-valve generation warpage be fixed on hydraulic cylinder, finally cause various fault to occur.
The power output that hydraulic cylinder is larger measures and benefits its working media is hardly can by the hydraulic oil compressed.And TOP-TIP long-term work is under hot environment, along with its viscosity of rising of hydraulic fluid temperature declines, adjoint problem will be export the series of problems such as strength is tired, generation external leakage, innovatively cooling water plate being joined the bottom of this hydraulic cylinder in order to solve the present invention of this problem, having intercepted because heat is for the impact of hydraulic oil with this.
Therefore, the present inventor makes further research this, and develop a kind of integrated hydraulic needle valve hot flow passage system, this case produces thus.
Utility model content
The purpose of this utility model is to provide a kind of integrated hydraulic needle valve hot flow passage system, solve flow distribution plate coordinate with nozzle between leakage problem, simplify actuator installation, solve the impact of thermal expansion for needle position.
To achieve these goals, the technical solution of the utility model is as follows:
A kind of integrated hydraulic needle valve hot flow passage system, comprise flow distribution plate, heating wire rod, main burner, some auxiliary jets, described main burner and auxiliary jet divide the two sides being up and down located at flow distribution plate, be communicated with by guiding gutter between main burner and auxiliary jet, the side of described flow distribution plate also offers groove, described heating wire rod is entrenched in groove, and the shape of heating wire rod is consistent with the shape of groove; In side, flow distribution plate auxiliary jet place, corresponding main burner position is provided with central supported cushion block, side, flow distribution plate main burner place, corresponding auxiliary jet position are provided with hydraulic cylinder, described hydraulic cylinder comprises piston, needle, described piston is arranged on hydraulic cylinder inside, described needle is connected with piston, needle is located in auxiliary jet by flow distribution plate, and the end of needle and the opening of auxiliary jet match.
Further, described flow distribution plate is connected with coil holder by wire clamp, and the end of described coil holder is provided with connector.
Further, needle fairlead is provided with between described needle and flow distribution plate.
Further, be threaded connection between described auxiliary jet and flow distribution plate.
Further, described piston controls up and down by the reversal valve be arranged on coil holder.
Further, also coldplate is provided with between described hydraulic cylinder and flow distribution plate.
Further, described coil holder is also provided with cooling water pipe pipeline connector, the coil holder between described cooling water pipe pipeline connector and coldplate is provided with pipeline captive clips.
After adopting such scheme, the utility model compared with prior art, has the following advantages:
Can avoid the leakage of Split hot runner, avoid causing unnecessary wastage of material and environmental pollution thus, simplify the installation steps of actuator, more save time save trouble and labor; The temperature control precision that improve system makes TOP-TIP have broader range of application, avoids needle causes warpage problem due to thermal expansion curve; Meanwhile also make it masterly when tackling large moulding.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present utility model;
Fig. 2 is the sectional view of the utility model hydraulic cylinder part.
Label declaration
Flow distribution plate 1, central supported cushion block 102, heating wire rod 101, needle fairlead 103,
Main burner 2, main jet mouth 201, auxiliary jet 3,
Coil holder 4, pipeline captive clips 401, reversal valve 402, cooling water pipe pipeline connector 403,
Hydraulic cylinder 5, piston 501, end cap 502, needle 503,
Coldplate 6, connector 7, wire clamp 8.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is further described.
As shown in the figure, a kind of integrated hydraulic needle valve hot flow passage system that the utility model that the utility model discloses discloses, comprise coil holder 4, connector 7, reversal valve 402, heating wire rod 101, heating wire rod, main burner 2, auxiliary jet 3, hydraulic cylinder 5, described coil holder 4 is connected and fixed by wire clamp 8 with heating wire rod 101; Connector 7 is connected and fixed by bolt and coil holder 4, so that connector 7 is connected with the system associated cable in pipeline.
Described main burner 2 and auxiliary jet 3 points are located at the two sides up and down of heating plate bar 101, be communicated with by runner hole between main burner 2 and auxiliary jet 3, the side of described heating wire rod 101 also offers groove, heating wire rod is entrenched in groove, heating wire rod is for controlling the temperature heating wire rod 101, and the shape of heating wire rod is consistent with the shape of groove; Heating side, wire rod 101 auxiliary jet 3 place, corresponding main burner 2 position are provided with central supported cushion block 102, central supported block is for determining whole system position in a mold, and in addition it can also be shared and prevent from being out of shape from the pressure of injection machine for whole system.
In order to avoid auxiliary jet 3 and the leakage at heating wire rod 101 binding face place, be threaded so adopt between auxiliary jet 3 with heating wire rod 101, ensure that reliability of operation; Adopt between described main burner 2 with heating wire rod 101 and be threaded, dismountable main jet mouth 201 of its head, also with the form be threaded, has interchangeability and maintainability more flexibly.
Described hydraulic cylinder 5 is fixed by bolts on heating wire rod 101, there is the piston 501 connecting needle 503 its inside, for the end cap 502 of closed piston 501 mouthfuls, the coldplate 6 for cooling hydraulic cylinder 5 is provided with below hydraulic cylinder 5, coldplate 6 connects with the cooling water pipe pipeline connector 403 on coil holder 4, its tube connector is by the pipeline captive clips 401 on coil holder 4, and coil holder 4 is within the system for the protection of the circuit of system and the connection between pipeline and reversal valve 402; Needle 503 is located in auxiliary jet 3 by heating wire rod 101, the end of needle 503 and the opening of auxiliary jet 3 match, and being provided with needle 503 fairlead 103 between needle 503 and heating wire rod 101, needle 503 fairlead 103 is for determining the relative position of needle 503.
Reversal valve 402 is arranged on the reciprocating motion for control piston 501 on coil holder 4, whole oil circuit is made to form loop, its signal controlled comes from the signal of injection machine, and the polytetrafluoroethylene (PTFE) pipeline of the connected mode of reversal valve 402 and the hydraulic cylinder 5 stainless steel enhancement layer by external sheath is connected.
Above are only specific embodiment of the utility model, but design concept of the present utility model is not limited thereto, all changes utilizing this design the utility model to be carried out to unsubstantiality, all should belong to the behavior of invading the utility model protection domain.
Claims (7)
1. an integrated hydraulic needle valve hot flow passage system, it is characterized in that: comprise flow distribution plate, heating wire rod, main burner, some auxiliary jets, described main burner and auxiliary jet divide the two sides being up and down located at flow distribution plate, be communicated with by runner hole between main burner and auxiliary jet, the side of described flow distribution plate also offers groove, described heating wire rod is entrenched in groove, and the shape of heating wire rod is consistent with the shape of groove; In side, flow distribution plate auxiliary jet place, corresponding main burner position is provided with central supported cushion block, side, flow distribution plate main burner place, corresponding auxiliary jet position are provided with hydraulic cylinder, described hydraulic cylinder comprises piston, needle, described piston is arranged on hydraulic cylinder inside, described needle is connected with piston, needle is located in auxiliary jet by flow distribution plate, and the end of needle and the opening of auxiliary jet match.
2. a kind of integrated hydraulic needle valve hot flow passage system according to claim 1, it is characterized in that: described flow distribution plate is connected with coil holder by wire clamp, the end of described coil holder is provided with connector.
3. a kind of integrated hydraulic needle valve hot flow passage system according to claim 1, is characterized in that: be provided with needle fairlead between described needle and flow distribution plate.
4. a kind of integrated hydraulic needle valve hot flow passage system according to claim 1, is characterized in that: be threaded connection between described auxiliary jet and flow distribution plate.
5. a kind of integrated hydraulic needle valve hot flow passage system according to claim 2, is characterized in that: described piston controls up and down by the reversal valve be arranged on coil holder.
6. a kind of integrated hydraulic needle valve hot flow passage system according to claim 1, is characterized in that: be also provided with coldplate between described hydraulic cylinder and flow distribution plate.
7. a kind of integrated hydraulic needle valve hot flow passage system according to claim 2, is characterized in that: described coil holder is also provided with cooling water pipe pipeline connector, the coil holder between described cooling water pipe pipeline connector and coldplate is provided with pipeline captive clips.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420519118.0U CN204235821U (en) | 2014-09-11 | 2014-09-11 | A kind of integrated hydraulic needle valve hot flow passage system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420519118.0U CN204235821U (en) | 2014-09-11 | 2014-09-11 | A kind of integrated hydraulic needle valve hot flow passage system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204235821U true CN204235821U (en) | 2015-04-01 |
Family
ID=52765371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420519118.0U Expired - Fee Related CN204235821U (en) | 2014-09-11 | 2014-09-11 | A kind of integrated hydraulic needle valve hot flow passage system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204235821U (en) |
-
2014
- 2014-09-11 CN CN201420519118.0U patent/CN204235821U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150401 Termination date: 20160911 |