CN200988294Y - Single point needle valve type hot nozzle - Google Patents
Single point needle valve type hot nozzle Download PDFInfo
- Publication number
- CN200988294Y CN200988294Y CN 200620060690 CN200620060690U CN200988294Y CN 200988294 Y CN200988294 Y CN 200988294Y CN 200620060690 CN200620060690 CN 200620060690 CN 200620060690 U CN200620060690 U CN 200620060690U CN 200988294 Y CN200988294 Y CN 200988294Y
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- CN
- China
- Prior art keywords
- hot mouth
- crossbeam
- needle
- main nozzle
- mouth
- 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
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Abstract
The utility model discloses a single point needle valve hot mouth, comprising a main ejecting body, a hot ejecting body, a valve needle sliding inside the hot mouth body; an annular groove is arranged on the upper end of the valve needle, an opening is arranged on one side of the main ejecting mouth body, a cavity is arranged inside the main ejecting body which allows the valve needle to move upwards and downwards and communicates with the opening; a cross beam is also arranged in the main ejecting mouth body and the cross beam goes through the opening, extends into the cavity and is connected with the upper end of the valve needle; a drive unit is connected on the middle part of the cross beam and drives the cross beam to move upwards and downwards, a guide post bushing is arranged on the base plane of one end of the cross beam and a guide post which can be inserted into the guide post bushing is fixed on the cross beam; two channels of inter-communication are arranged on the body of both sides of the axial lines of ejecting mouth and hot mouth, two channel entry ends of ejecting mouth body communicate with the center of the injection mold and exit ends of two channels of the hot mouth body communicate with the hot mouth caste gate. The utility model has the advantages that the purpose of controlling the material feeding and material packing of the melt adhesive inside the hot mouth is realized; the structure heats evenly, operates stably and fully satisfies the requirements of the users.
Description
Technical field
The utility model relates to injection moulding apparatus, is specifically related to a kind of hot mouth of single-point needle valve that is used for the hot runner mould injection moulding.
Background technology
In the prior art, it is the developing direction of industry that injection mold uses TOP-TIP, use the mould of the mould of hot flow path with respect to the cold runner structure, have and economize in raw materials, boost productivity, improve product quality, simplify plurality of advantages such as product following process, its shortcoming is to have increased die cost, has improved the machining accuracy of mould.The hot mouth of needle valve is a kind of system of more complicated in the TOP-TIP, its operation principle is to drive moving up and down of hot mouth central authorities' needle by gas (oil) cylinder, driving signal (passing through magnetic valve usually) links to each other with the injection moulding control signal of injection machine, needle when beginning, is retreated in injection moulding, open injection hole, allow melten gel pass through, when injection moulding finishes, needle moves forward, close die cavity, reach the purpose of cutting off cast gate, the hot mouth of single-point needle valve is for when the injection moulding center, when needle center, cast gate are centered close to a straight line and the hot mouth of a kind of needle valve that designs.In this case, the problem that need overcome mainly concentrate on adopt which kind of mode drive in the middle of moving up and down of needle and do not influence the proper flow of melten gel.
The structure of the hot mouth of currently used single-point needle valve mainly contains following three kinds:
1, gas (oil) cylinder that will drive needle-valve wraps in the outside of hot mouth, and piston is positioned at a peripheral week of hot mouth, and the spy puts a power transmission shaft and drives needle and move up and down in the middle of the piston.
2, gas (oil) cylinder is placed directly over the hot mouth, a large-scale mold insert is done in the cylinder outside, bores the runner hole in the mold insert, avoids cylinder and links to each other with the hot mouth of mold insert below, heats whole mold insert with heating rod.
3, gas (oil) cylinder is placed on hot mouth on one side, and employing crank and rocker mechanism or tooth are put by level side
Wheel mechanism is by the rotation drive needle translation up and down of connecting rod.
In above-mentioned three kinds of modes, the significant disadvantages of the first two kind mode be whole hot mouth to do very big, the area that takies mould so also can be very big, can have influence on some structures on the mould easily, next is that seal is worked under the condition of high temperature for a long time, and is very high to the requirement of seal.And the part processing of first kind of mode is very complicated, require very high to equipment and personnel, the first two is planted the benefit of mode and installs more convenient exactly, the structure of the third mode not only requires very high to the part processing of hot mouth itself, and user's processing is also very complicated, when rotation changed into translation, needle also can be subjected to the effect of cross component force simultaneously.
The utility model content
The purpose of this utility model is, a kind of the hot mouth of single-point needle valve type is provided, and it is simple that the hot mouth of this single-point needle valve type has processing, simple installation, compact conformation, characteristics such as Mould Machining is simple, and it is steady, easy to maintenance to move.
The technical scheme that the utility model provides is as follows: construct the hot mouth of a kind of single-point needle valve, comprise main nozzle body, hot mouth body, the needle that in hot mouth body, slides, described main nozzle, hot mouth body is by alignment pin and screw location and locking, upper end at needle has cannelure, side at described main nozzle body has an opening, in main nozzle body, be provided with for needle and move up and down, and the cavity that is connected with described opening, also comprise a crossbeam, one end of described crossbeam passes described opening and puts in the described cavity, and be connected with described needle upper end, be connected with and drive the drive unit that described crossbeam moves up and down at crossbeam middle part, be provided with a guide pin bushing, be connected with the guide pillar that can insert in the described guide pin bushing on the crossbeam in the bottom surface of the other end of crossbeam; Offer two runners that are interconnected on the body of described main nozzle and hot mouth axis both sides, the entrance point of two runners on the main nozzle body is connected with the injection moulding center, the port of export of two axis of hot mouth body be connected with hot mouth cast gate.
In the hot mouth of above-mentioned single-point needle valve, described drive unit is a kind of pneumatic actuating device, and pneumatic actuating device comprises cylinder head, cylinder block, piston in the cylinder block and described crossbeam middle part Joint.
In the hot mouth of above-mentioned single-point needle valve, described drive unit is a kind of fluid pressure drive device, and drive unit comprises oil cylinder cover, cylinder body, is arranged on piston and described crossbeam middle part Joint in the cylinder body.
The utlity model has following advantage: in main nozzle body, be processed with clearance position, can hold the motion of needle and crossbeam, two runners of main nozzle and hot mouth are separated into hot mouth inside by the clearance position both sides and are connected to together, gas (oil) cylinder places hot mouth one side, be fixed to crossbeam inside, cylinder piston links to each other with crossbeam, and a dowel hole is done on the cylinder next door, guide pillar and crossbeam are fixed, and the assurance crossbeam can only be done translation up and down.On template, bore two pores and be positioned at the moving up and down of top and the bottom control cylinder piston of cylinder.When moving up and down, cylinder piston drive crossbeam, reached the charging of controlling melten gel in the hot mouth and the purpose of sealing material because the balance of guide pillar guide pin bushing has guaranteed that crossbeam drives needle and can only move up and down.This structure heating is average, and motion is steadily satisfied user's needs fully.
Description of drawings
Fig. 1 is that the master of the hot mouth of the utility model single-point needle valve type looks cutaway view;
Fig. 2 is the side view cutaway drawing of Fig. 1;
Fig. 3 is the vertical view of Fig. 1.
The specific embodiment
With reference to Fig. 1, Fig. 2, Fig. 3, provide a kind of single-point needle valve hot mouth, comprise main nozzle body 1, hot mouth body 5, the needle 26 that in hot mouth body 5, is provided with needle guide pin bushing 4 and in guide pin bushing 4, slides, main nozzle body 1, hot mouth body 5 is by alignment pin 18,20 and lock screw 19 location and locking, be provided with main nozzle jump ring 29 in regular turn in the outside of main nozzle body 1, main nozzle sleeve 28, main nozzle temperature-measuring line 2, main nozzle heater wire 3, upper end at needle 26 has cannelure, is provided with hot mouth jump ring 10 in regular turn in the outside of hot mouth body 5, hot mouth mouth 9, hot mouth body sleeve 8, hot mouth body temperature-measuring line 7, hot mouth body heater wire 6; Side at main nozzle body 1 is provided with an opening 101, in main nozzle body 1, be provided with for needle 26 and move up and down, and the cavity 102 that is connected with opening 101, also be provided with a crossbeam 27, one end of crossbeam 27 passes opening 101 and puts in the cavity 101, be connected with the upper end of needle 26, be connected with and drive the drive unit that crossbeam moves up and down at crossbeam 27 middle parts, bottom surface at the other end of crossbeam 27 is provided with a guide pin bushing 14, is connected with a guide pillar 30 that can insert in the guide pin bushing 14 by fixed block and lock screw on the crossbeam 27; On the body of main nozzle and hot mouth axis both sides, offer two runners that are interconnected 103,104,501,502, the entrance point of two runners 103,104 on the main nozzle body is connected with the injection moulding center, and the port of export of two runners of hot mouth body 501,502 is connected with hot mouth cast gate 11.
With reference to shown in Figure 1, drive unit can adopt pneumatic actuating device to realize, pneumatic actuating device comprises cylinder head 25, cylinder block 12, and the piston 24 in the cylinder block 12 is by spline pin 23, crossbeam fixed block 22 and lock screw nail 1 and crossbeam 27 middle part Joints.Drive unit can also adopt fluid pressure drive device to realize, drive unit comprises oil cylinder cover, cylinder body, is arranged on piston and crossbeam middle part Joint in the cylinder body.
Main nozzle and hot mouth body are by two alignment pin location, with four screws it is locked, the processing clearance position is held the motion of needle and crossbeam in main nozzle, the runner of main nozzle and hot mouth is separated into hot mouth inside by the clearance position both sides and is connected to together, and gas (oil) cylinder places hot mouth one side, is fixed to crossbeam inside, cylinder piston links to each other with crossbeam, a dowel hole is done on the cylinder next door, and guide pillar and crossbeam are fixed, and the assurance crossbeam can only be done translation up and down.On template, bore two pores and be positioned at the moving up and down of top and the bottom control cylinder piston of cylinder.When moving up and down, cylinder piston drive crossbeam, reached the charging of controlling melten gel in the hot mouth and the purpose of sealing material because the balance of guide pillar guide pin bushing has guaranteed that crossbeam drives needle and can only move up and down.This structure heating is average, and motion is steadily satisfied user's needs fully.
Claims (3)
1, the hot mouth of a kind of single-point needle valve, comprise main nozzle body, hot mouth body, the needle that in hot mouth body, slides, described main nozzle, hot mouth body is by alignment pin and screw location and locking, it is characterized in that, upper end at needle has cannelure, side at described main nozzle body has an opening, in main nozzle body, be provided with for needle and move up and down, and the cavity that is connected with described opening, also comprise a crossbeam, one end of described crossbeam passes described opening and puts in the described cavity, and is connected with described needle upper end, is connected with and drives the drive unit that described crossbeam moves up and down at the crossbeam middle part, bottom surface at the other end of crossbeam is provided with a guide pin bushing, is connected with the guide pillar that can insert in the described guide pin bushing on the crossbeam; Offer two runners that are interconnected on the body of described main nozzle and hot mouth axis both sides, two runner entrance points on the main nozzle body are connected with the injection moulding center, and two runner exit ends of hot mouth body are connected with hot mouth cast gate.
2, the hot mouth of single-point needle valve according to claim 1 is characterized in that, described drive unit is a kind of pneumatic actuating device, and pneumatic actuating device comprises cylinder head, cylinder block, piston in the cylinder block and described crossbeam middle part Joint.
3, the hot mouth of single-point needle valve according to claim 1 is characterized in that, described drive unit is a kind of fluid pressure drive device, and drive unit comprises oil cylinder cover, cylinder body, is arranged on piston and described crossbeam middle part Joint in the cylinder body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620060690 CN200988294Y (en) | 2006-06-23 | 2006-06-23 | Single point needle valve type hot nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620060690 CN200988294Y (en) | 2006-06-23 | 2006-06-23 | Single point needle valve type hot nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200988294Y true CN200988294Y (en) | 2007-12-12 |
Family
ID=38939336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620060690 Expired - Fee Related CN200988294Y (en) | 2006-06-23 | 2006-06-23 | Single point needle valve type hot nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200988294Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101941270B (en) * | 2008-08-21 | 2015-06-03 | 马斯特模具（2007）有限公司 | Injection molding apparatus having a nozzle tip component for taking a nozzle out of service |
| CN108568946A (en) * | 2018-06-13 | 2018-09-25 | 珠海格力精密模具有限公司 | It is molded into the tool that pours and hot water cover plate into pouring method |
-
2006
- 2006-06-23 CN CN 200620060690 patent/CN200988294Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101941270B (en) * | 2008-08-21 | 2015-06-03 | 马斯特模具（2007）有限公司 | Injection molding apparatus having a nozzle tip component for taking a nozzle out of service |
| CN108568946A (en) * | 2018-06-13 | 2018-09-25 | 珠海格力精密模具有限公司 | It is molded into the tool that pours and hot water cover plate into pouring method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C35 | Partial or whole invalidation of patent or utility model | ||
| IW01 | Full invalidation of patent right |
Decision date of declaring invalidation: 20090417 Decision number of declaring invalidation: 13254 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071212 |