CN218838514U

CN218838514U - Integrated needle valve quick color changing structure

Info

Publication number: CN218838514U
Application number: CN202222960088.4U
Authority: CN
Inventors: 柯颖; 蒋军瑶
Original assignee: Shenzhen Kelst Hot Runner Technology Co ltd
Current assignee: Shenzhen Kelst Hot Runner Technology Co ltd
Priority date: 2022-11-08
Filing date: 2022-11-08
Publication date: 2023-04-11
Anticipated expiration: 2032-11-08

Abstract

The utility model discloses an integral type needle valve trades look structure fast, including the runner plate, the inside of runner plate is provided with the runner hole, and the bottom outer wall of runner plate has the main part pipe through threaded connection, and the inside activity of main part pipe is pegged graft and is had the needle bar, and the top of runner plate is fixed with the cylinder, and the cylinder includes the cylinder body, and the inside of cylinder body is provided with the piston, and the top and the piston of needle bar are fixed, and the bottom mounting of needle bar has the look cap of trading, and the bottom of main part pipe is inside to have the inner tube through threaded connection, and the bottom of inner tube is provided with and trades the ejection of compact mouth of look cap looks adaptation. The utility model discloses a cylinder, needle bar and the look cap of trading that set up utilize the cylinder to drive the needle bar and trade the look cap and move for the look cap of trading of bowl form can carry out quick opening and closing to ejection of compact mouth, and the effect of quick break-make can be carried out to the melting plastics that has consequently realized different colours when moulding plastics, realizes the quick look function of trading of injection mould, makes the injection mould trade the look effect better.

Description

Integrated needle valve quick color changing structure

Technical Field

The utility model relates to an injection mould technical field, concretely relates to integral type needle valve trades look structure fast.

Background

A plastic mould is matched with a plastic forming machine in the plastic processing industry, the principle is that molten plastic is injected into the mould for cooling and forming, and then the product is processed.

Chinese patent No. CN201320465102.1 discloses a color-changing needle valve hot runner system, which comprises a main sprue, a flow distribution plate, an insert, a needle valve power device and a hot sprue; the insert is arranged at the connecting part of the flow distribution plate flow passage and the hot nozzle flow passage, and a flow distribution plate hole in the insert is connected with the flow distribution plate flow passage and a hot nozzle hole is connected with the hot nozzle flow passage; the upper end of the insert is provided with an inward-concave positioning sleeve groove, the positioning sleeve is arranged in the positioning sleeve groove, the meson is arranged above the positioning sleeve, and the positioning sleeve is tightly pressed in the positioning sleeve groove by the meson. The locating sleeve can provide secondary locating for the needle valve, and under the condition that the insert is located in a failure mode, the locating sleeve can provide locating for the needle valve.

The needle valve of prior art is sealed the effect relatively poor when closing the mouth of moulding plastics, like needle valve and heat in the above-mentioned patent seal mode between chewing comparatively simple for can't quick closing is chewed to heat, and then influences the look effect of trading of injection mould. Therefore, it is necessary to design an integrated needle valve with a fast color changing structure to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an integral type needle valve trades look structure fast to solve the above-mentioned weak point among the prior art.

In order to achieve the above object, the present invention provides the following technical solutions:

integral type needle valve trades look structure fast, including the runner plate, the inside of runner plate is provided with the runner hole, there is the main part pipe bottom outer wall of runner plate through threaded connection, the inside activity of main part pipe is pegged graft and is had the needle bar, the top of runner plate is fixed with the cylinder, the cylinder includes the cylinder body, the inside of cylinder body is provided with the piston, the top and the piston of needle bar are fixed, the bottom mounting of needle bar has the look cap of trading, there is the inner tube inside the bottom of main part pipe through threaded connection, the bottom of inner tube is provided with and trades the ejection of compact mouth of look cap looks adaptation.

Further, the inner tube cup joints the outside at the needle bar, the bottom outside of main part pipe is fixed with the seal, leave the clearance between needle bar and the ejection of compact mouth.

Furthermore, the outer wall of the top of the cylinder body is connected with an upper cover through threads, and the outer wall of the piston is provided with a sealing ring.

Furthermore, the interior of the piston is connected with a connecting body through a bolt, and the needle rod is fixed with the connecting body.

Furthermore, the outer wall of one side of the cylinder body is provided with a first air hole and a second air hole, and the first air hole and the second air hole are respectively positioned at the top and the bottom of the piston.

In the technical scheme, the utility model provides an integral type needle valve trades look structure fast, beneficial effect is:

(1) Through cylinder, needle bar that set up and trade the look cap, utilize the cylinder to drive the needle bar and trade the look cap and move for the look cap of trading of bowl form can carry out quick opening and closing to ejection of compact mouth, consequently realized that the fused plastics of different colours can carry out the effect of quick break-make when moulding plastics, realize the quick look function of trading of injection mould, make the injection mould trade the look effect better.

(2) Through the upper cover and the connector that set up, utilize upper cover and cylinder body to carry out threaded connection to make connector and piston carry out threaded connection, when needs are dismantled the cylinder, can be convenient dismantle upper cover and cylinder body, can also carry out convenient dismantlement with connector and piston simultaneously, make the vulnerable part piston can be convenient for change.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to these drawings.

Fig. 1 is the overall structure schematic diagram provided by the embodiment of the integrated needle valve quick color changing structure of the utility model.

Fig. 2 is the cylinder structure diagram provided by the embodiment of the integrated needle valve quick color changing structure of the utility model.

Fig. 3 is an enlarged schematic view of a position a provided by the embodiment of the integrated needle valve quick color changing structure of the present invention.

Description of reference numerals:

the device comprises a flow channel plate 1, flow channel holes 2, a main body pipe 3, a cylinder 4, a needle rod 5, a sealing body 6, an inner pipe 7, a color changing cap 8, a discharging nozzle 9, a cylinder body 10, a piston 11, an upper cover 12, a connecting body 13, a sealing ring 14, a first air hole 15 and a second air hole 16.

Detailed Description

In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings.

As shown in fig. 1-3, the embodiment of the utility model provides an integral type needle valve trades look structure fast, including runner plate 1, the inside of runner plate 1 is provided with runner hole 2, the bottom outer wall of runner plate 1 has main part pipe 3 through threaded connection, main part pipe 3's inside activity is pegged graft and is had needle bar 5, runner plate 1's top is fixed with cylinder 4, cylinder 4 includes cylinder body 10, the inside of cylinder body 10 is provided with piston 11, the top and the piston 11 of needle bar 5 are fixed, the bottom mounting of needle bar 5 has trades look cap 8, there is inner tube 7 inside the bottom of main part pipe 3 through threaded connection, the bottom of inner tube 7 is provided with the ejection of compact mouth 9 with trading look cap 8 looks adaptation.

Specifically, in the present embodiment, including runner plate 1, the inside of runner plate 1 is provided with runner hole 2, fused plastics advances the inside of runner hole 2 through pressure, there is main part pipe 3 bottom outer wall of runner plate 1 through threaded connection, main part pipe 3's inside activity is pegged graft there is needle bar 5, runner plate 1's top is fixed with cylinder 4, cylinder 4 includes cylinder body 10, the inside of cylinder body 10 is provided with piston 11, the top and the piston 11 of needle bar 5 are fixed, utilize the motion of piston 11 drive needle bar 5, the bottom mounting of needle bar 5 has the color changing cap 8, the structure of color changing cap 8 is the bowl form, there is inner tube 7 bottom inside through threaded connection of main part pipe 3, the bottom of inner tube 7 is provided with the ejection of compact mouth 9 with color changing cap 8 looks adaptation, ejection of compact mouth 9 is the mouth of moulding plastics of injection mould, the color changing cap 8 of bowl form makes its better with ejection of compact mouth 9's sealing effect, the color changing cap 8 has thermal-insulated effect simultaneously, make prevent that heat from runner plate 1 to fashioned mould conduction, thereby the temporacle effect of changing has been improved.

The utility model provides an integral type needle valve trades look structure fast, through cylinder 4, needle bar 5 and the look cap 8 that trades that sets up, utilize cylinder 4 to drive needle bar 5 and trade look cap 8 and move for the look cap 8 that trades of bowl form can carry out quick opening and closing to ejection of compact mouth 9, consequently realized that the melting plastics of different colours can carry out the effect of quick break-make when moulding plastics, realize the quick look function of trading of injection mould, make the injection mould trade the look effect better.

The utility model provides an in one embodiment, inner tube 7 cup joints in the outside of needle bar 5, and the bottom external fixation of main part pipe 3 has seal 6, and seal 6 and injection mold install, leave the clearance between needle bar 5 and the ejection of compact mouth 9, when trading look cap 8 and ejection of compact mouth 9 separation, fused plastics pass through the clearance and flow out.

The utility model provides a further embodiment, there is upper cover 12 top outer wall of cylinder body 10 through threaded connection, piston 11's outer wall is provided with sealing ring 14, sealing ring 14 has a plurality ofly, make the inside of the better piston 11 of gas tightness between piston 11 and the cylinder body 10 have connector 13 through bolted connection, needle bar 5 is fixed with connector 13, utilize upper cover 12 and cylinder body 10 to carry out threaded connection, and make connector 13 and piston 11 carry out threaded connection, when needs are dismantled cylinder 4, can be convenient dismantle upper cover 12 and cylinder body 10, can also carry out convenient dismantlement with connector 13 and piston 11 simultaneously, make wearing parts piston 11 can be convenient for change, the shortcoming of the quick look structure of trading of prior art needle valve be convenient for maintain has been solved.

The utility model provides a further embodiment, one side outer wall of cylinder body 10 is provided with gas pocket one 15 and gas pocket two 16, and gas pocket one 15 and gas pocket two 16 are located the top and the bottom of piston 11 respectively, when letting in the air from gas pocket two 16 for piston 11 drives needle bar 5 upward movement, when letting in the air from gas pocket one 15, makes piston 11 drive needle bar 5 downstream.

The working principle is as follows: drive needle bar 5 downstream through cylinder 4, make needle bar 5 drive trade look cap 8 and ejection of compact 9 separation, get into the inside of main part pipe 3 from runner hole 2 with molten plastics through pressure, make molten plastics flow from ejection of compact 9, when needs prevent molten plastics from flowing from ejection of compact 9, through letting in air to the inside of gas pocket two 16, control drives piston 11 and carries out the upward movement, make piston 11 drive needle bar 5 and trade look cap 8 and carry out the upward movement, and then make trade look cap 8 and ejection of compact 9 and cooperate, because the very rapidity of motion of piston 11, when making trade look cap 8 close ejection of compact 9 very fast, and then realized the effect that prevents molten plastics from the ejection of compact 9 outflow fast, also very fast when ejection of compact 9 was opened simultaneously, when making need flow different colours's molten plastics from the needle valve of difference, can realize the effect of trading look fast.

While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive on the scope of the appended claims.

Claims

1. Integral type needle valve trades look structure fast, its characterized in that, including runner plate (1), the inside of runner plate (1) is provided with runner hole (2), there is main part pipe (3) bottom outer wall of runner plate (1) through threaded connection, the inside activity of main part pipe (3) is pegged graft and is had needle bar (5), the top of runner plate (1) is fixed with cylinder (4), cylinder (4) are including cylinder body (10), the inside of cylinder body (10) is provided with piston (11), the top and piston (11) of needle bar (5) are fixed, the bottom mounting of needle bar (5) has traded look cap (8), there is inner tube (7) bottom inside of main part pipe (3) through threaded connection, the bottom of inner tube (7) is provided with ejection of compact mouth (9) with trading look cap (8) looks adaptation.

2. The integrated needle valve quick color changing structure is characterized in that the inner tube (7) is sleeved outside the needle rod (5), a sealing body (6) is fixed outside the bottom end of the main tube (3), and a gap is reserved between the needle rod (5) and the discharging nozzle (9).

3. The integrated needle valve quick color changing structure is characterized in that an upper cover (12) is connected to the outer wall of the top of the cylinder body (10) through threads, and a sealing ring (14) is arranged on the outer wall of the piston (11).

4. The integrated needle valve quick color changing structure is characterized in that a connecting body (13) is connected to the interior of the piston (11) through a bolt, and the needle rod (5) is fixed to the connecting body (13).

5. The integrated needle valve quick color changing structure as claimed in claim 1, wherein a first air hole (15) and a second air hole (16) are formed in an outer wall of one side of the cylinder body (10), and the first air hole (15) and the second air hole (16) are respectively located at the top and the bottom of the piston (11).