CN203637099U - Single-point needle valve injection molding nozzle - Google Patents
Single-point needle valve injection molding nozzle Download PDFInfo
- Publication number
- CN203637099U CN203637099U CN201320592232.1U CN201320592232U CN203637099U CN 203637099 U CN203637099 U CN 203637099U CN 201320592232 U CN201320592232 U CN 201320592232U CN 203637099 U CN203637099 U CN 203637099U
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- cylinder
- lower body
- piston
- runner
- heating
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Abstract
The utility model discloses a single-point needle valve injection molding nozzle, comprising a cylinder upper cover, a cylinder body, a cylinder bottom cover and a piston, wherein an upper body and a lower body are embedded into a cylinder air cavity; a needle valve is embedded into a sleeve hole of the lower body; an upper runner is formed on the upper body; a lower runner is formed on the lower body; a nozzle head is assembled at the lower end part of the lower body; a heating rod is assembled inside the upper body; a heating coil is wound on the peripheral wall of the lower body; a sealing rubber ring of the piston departs from the heating rod; the upper runner, the lower runner, the sleeve hole and a glue outlet of the nozzle head form an injection molding runner; the heating rod inside the upper body can achieve the even heating of the upper body, and the heating part of the heating rod can be controlled according to actual requirements; the piston moves inside the cylinder air cavity and drives the needle valve to move up and down when the single-point needle valve injection molding nozzle works; the sealing rubber ring arranged at the periphery of the piston departs from the heating rod. The effect on the sealing rubber ring caused by the temperature can be effectively reduced by the structure design. Thus, the service life of the single-point needle valve injection molding nozzle is ensured.
Description
Technical field
The utility model relates to injection mold accessory technical field, relates in particular to a kind of single point needle-valve type injection heat and chews.
Background technology
At present, the main injection mold that adopts cold runner structure form of injection mo(u)lding processing is main, and for the injection mold of hot runner structure form, cold runner structure exists molding cycle length, poor product quality and wastes raw-material defect; In order to overcome the existing defect of traditional cold runner structure, hot runner structure is little by little applied, and existing many companies produce TOP-TIP both at home and abroad.Wherein, to chew be the important component part of TOP-TIP to injection heat.
Injection heat as a kind of important kind is chewed structure, and it is very extensive that needle valve injection heat is chewed application; But existing needle valve injection heat is chewed the defect that ubiquity heating is inhomogeneous, service life is shorter.
Summary of the invention
The purpose of this utility model is to provide a kind of single point needle-valve type injection moulding thermal resistance for the deficiencies in the prior art, and this single point needle-valve type injection moulding thermal resistance can realize even heating and long service life.
For achieving the above object, the utility model is achieved through the following technical solutions.
A kind of single point needle-valve type injection heat is chewed, include the cylinder upper cover connecting successively, cylinder block and cylinder bottom, cylinder upper cover, cylinder block and cylinder bottom enclose jointly dresses up cylinder air cavity, in cylinder air cavity, can be embedded with relatively actively the piston that is circular, in cylinder air cavity, be also embedded with upper body and be positioned at the lower body of upper body below, the bottom of lower body is run through cylinder bottom and is extended to the below of cylinder bottom, the core of lower body offers the suit hole of running through completely, in suit hole, can be embedded with relatively actively the needle with cylinder piston synchronization action, upper body offers upper runner, lower body offers lower flow channel, the bottom of upper runner is communicated with the upper end of lower flow channel, the bottom of lower flow channel is communicated with suit hole, the bottom of lower body is fitted with chews head, and the bottom of needle is inserted in the plastic hole of chewing head, the inside of upper body is fitted with the heating bar being electrically connected with external power source, and the periphery wall of lower body is wound with the heating circle being electrically connected with external power source, piston is fitted with O-ring seal, and O-ring seal is away from heating bar.
Wherein, described piston is provided with horizontal rib, and horizontal rib is fixed in the upper end of described needle.
Wherein, described lower body is sheathed with collet in the periphery of described heating circle.
The beneficial effects of the utility model are: a kind of single point needle-valve type injection heat described in the utility model is chewed, it comprises cylinder upper cover, cylinder block, cylinder bottom and piston, embedded body and the lower body loaded onto of cylinder air cavity, setting-in needle in the suit hole of lower body, upper body is offered upper runner, lower body is offered lower flow channel, the equipped head of chewing in bottom of lower body; The equipped heating bar in inside of upper body, the periphery wall of lower body is reeled to generate heat and is enclosed, and the O-ring seal of piston is away from heating bar.Upper runner, lower flow channel, suit hole and chew the plastic hole composition injection flow passage of head; The heating bar that is positioned at upper body inside can be realized upper body and evenly generate heat, and can control according to actual needs the heating position of heating bar, and when work, piston is movable and drive needle-valve to move up and down in cylinder air cavity; Be installed on the O-ring seal of piston periphery away from heating bar, this structural design can effectively reduce O-ring seal and be subject to the impact of temperature, and then guarantees service life of the present utility model.So, the utlity model has the advantage of homogeneous heating, long service life.
Accompanying drawing explanation
Utilize accompanying drawing to be further detailed the utility model below, but the embodiment in accompanying drawing does not form any restriction of the present utility model.
Fig. 1 is structural representation of the present utility model.
Fig. 2 is generalized section of the present utility model.
Fig. 3 is the generalized section of the utility model another location.
In Fig. 1 to Fig. 3, include:
1---cylinder upper cover 2---cylinder block
3---cylinder bottom 4---cylinder air cavity
5---piston 5a---are rib laterally
6---upper body 6a---upper runner
7---lower body 7a---is set with hole
7b---lower flow channel 8---needle
9---chew 10---heating bar
11---heating circle 12---O-ring seal
13---collet.
The specific embodiment
Below in conjunction with concrete embodiment, the utility model is described.
As shown in Figure 1 to Figure 3, a kind of single point needle-valve type injection heat is chewed, include the cylinder upper cover 1 connecting successively, cylinder block 2 and cylinder bottom 3, cylinder upper cover 1, cylinder block 2 and cylinder bottom 3 enclose jointly dresses up cylinder air cavity 4, in cylinder air cavity 4, can be embedded with relatively actively the piston 5 that is circular, in cylinder air cavity 4, be also embedded with upper body 6 and be positioned at the lower body 7 of upper body 6 belows, the bottom of lower body 7 is run through cylinder bottom 3 and is extended to the below of cylinder bottom 3, the core of lower body 7 offers the suit hole 7a running through completely, in suit hole 7a, can be embedded with relatively actively the needle 8 with cylinder piston 5 synchronization actions, upper body 6 offers upper runner 6a, lower body 7 offers lower flow channel 7b, the bottom of upper runner 6a is communicated with the upper end of lower flow channel 7b, the bottom of lower flow channel 7b is communicated with suit hole 7a, the bottom of lower body 7 is fitted with chews 9, and the bottom of needle 8 is inserted in a plastic hole of chewing 9, the inside of upper body 6 is fitted with the heating bar 10 being electrically connected with external power source, and the periphery wall of lower body 7 is wound with the heating circle 11 being electrically connected with external power source, piston 5 is fitted with O-ring seal 12, and O-ring seal 12 is away from heating bar 10.
In the utility model course of work, upper runner 6a, lower flow channel 7b, suit hole 7a and chew a plastic hole composition injection flow passage of 9; Wherein, the heating bar 10 that is positioned at upper body 6 inside can be realized upper body 6 and evenly generate heat, and can control according to actual needs the heating position of heating bar 10.In addition, when work, piston 5 is in the interior activity of cylinder air cavity 4 and drive needle-valve to move up and down.
Be installed on the O-ring seal 12 of piston 5 peripheries away from heating bar 10, this structural design can effectively reduce O-ring seal 12 and be subject to the impact of temperature, and then guarantees service life of the present utility model; In addition, O-ring seal 12 of the present utility model can adopt the cushion rubber of bronze material, smooth and easy with safety action.
Need further to explain, of the present utility modelly chew 9 and adopt integral structures design, chewing of this structural design 9 can guarantee the temperature into Jiao Chu effectively, and can also effectively guarantee the quick colour changing in inland lake.
As preferred embodiment, piston 5 is provided with horizontal rib 5a, and horizontal rib 5a is fixed in the upper end of needle 8; Wherein, laterally rib 5a and piston 5 are integral type structure, and this structural design can guarantee that piston 5 and needle 8 link effectively.
In addition, lower body 7 is sheathed with collet 13 in the periphery of heating circle 11; Collet 13 of the present utility model can play thermal insulation protection effect.
Above content is only preferred embodiment of the present utility model, for those of ordinary skill in the art, according to thought of the present utility model, all will change in specific embodiments and applications, this description should not be construed as restriction of the present utility model.
Claims (3)
1. a single point needle-valve type injection heat is chewed, it is characterized in that: include the cylinder upper cover (1) connecting successively, cylinder block (2) and cylinder bottom (3), cylinder upper cover (1), cylinder block (2) and cylinder bottom (3) enclose jointly dresses up cylinder air cavity (4), in cylinder air cavity (4), can be embedded with relatively actively the piston (5) that is circular, in cylinder air cavity (4), be also embedded with upper body (6) and be positioned at the lower body (7) of upper body (6) below, the bottom of lower body (7) is run through cylinder bottom (3) and is extended to the below of cylinder bottom (3), the core of lower body (7) offers the suit hole (7a) of running through completely, in suit hole (7a), can be embedded with relatively actively the needle (8) with cylinder piston (5) synchronization action, upper body (6) offers upper runner (6a), lower body (7) offers lower flow channel (7b), the bottom of upper runner (6a) is communicated with the upper end of lower flow channel (7b), the bottom of lower flow channel (7b) is communicated with suit hole (7a), the bottom of lower body (7) is fitted with chews head (9), and the bottom of needle (8) is inserted in the plastic hole of chewing head (9), the inside of upper body (6) is fitted with the heating bar (10) being electrically connected with external power source, and the periphery wall of lower body (7) is wound with the heating circle (11) being electrically connected with external power source, piston (5) is fitted with O-ring seal (12), and O-ring seal (12) is away from heating bar (10).
2. a kind of single point needle-valve type injection heat according to claim 1 is chewed, and it is characterized in that: described piston (5) is provided with horizontal rib (5a), and horizontal rib (5a) is fixed in the upper end of described needle (8).
3. a kind of single point needle-valve type injection heat according to claim 2 is chewed, and it is characterized in that: described lower body (7) is sheathed with collet (13) in the periphery of described heating circle (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320592232.1U CN203637099U (en) | 2013-09-24 | 2013-09-24 | Single-point needle valve injection molding nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320592232.1U CN203637099U (en) | 2013-09-24 | 2013-09-24 | Single-point needle valve injection molding nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203637099U true CN203637099U (en) | 2014-06-11 |
Family
ID=50868376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320592232.1U Expired - Fee Related CN203637099U (en) | 2013-09-24 | 2013-09-24 | Single-point needle valve injection molding nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203637099U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114379029A (en) * | 2022-01-17 | 2022-04-22 | 浙江恒道科技有限公司 | Hot runner nozzle heating system |
-
2013
- 2013-09-24 CN CN201320592232.1U patent/CN203637099U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114379029A (en) * | 2022-01-17 | 2022-04-22 | 浙江恒道科技有限公司 | Hot runner nozzle heating system |
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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: 20140611 Termination date: 20180924 |