CN215151428U

CN215151428U - Novel circular cylinder structure

Info

Publication number: CN215151428U
Application number: CN202120085725.0U
Authority: CN
Inventors: 徐志
Original assignee: Kunshan Demag Injection Molding Technology Co ltd
Current assignee: Kunshan Demag Injection Molding Technology Co ltd
Priority date: 2021-01-13
Filing date: 2021-01-13
Publication date: 2021-12-14
Anticipated expiration: 2031-01-13

Abstract

The utility model discloses a novel circular cylinder structure, including the cylinder body of integral type and the piston of setting in the cylinder body, the cylinder body top is equipped with the blind end, and the piston is well logical structure, and the needle sets up downwards at the intracavity that sets up of central point position, and with set up and be equipped with the cushion between the chamber, set up the chamber top and compress tightly by the briquetting, and the briquetting compresses tightly the needle, piston and cylinder body sealing connection, and the cylinder body communicates respectively there is the gas crossing at the upside and the downside of piston. The utility model discloses the holistic setting of cylinder body, easily dismouting, installation and easy maintenance to, through setting up the setting of chamber and gasket, can finely tune the length of needle, the suitability is stronger, and, through the adjustment of gasket, it is also more convenient in the maintenance.

Description

Novel circular cylinder structure

Technical Field

The utility model relates to a hot runner needle cylinder field, in particular to novel circular cylinder structure.

Background

Hot Runner (Hot Runner Systems) is a system of heating assemblies used in injection molds to inject molten plastic pellets into the mold cavity.

The hot runner is on the closure of hot mouth part, and its confined function is realized to the form through the needle at present mostly, and the needle is mostly uses cylinder driven, and present cylinder structure is mostly split type structure to, the needle is on fixed setting, and highly unable regulation, is using, and the needle sets up length error appearing easily, and the cylinder suitability is poor, also has certain degree of difficulty in the maintenance.

SUMMERY OF THE UTILITY MODEL

The utility model provides a solve above-mentioned problem, provide a novel circular cylinder structure, the holistic setting of cylinder body, easily dismouting, installation and easy maintenance to, through setting up the setting of chamber and gasket, can finely tune the length of needle, the suitability is stronger, and, through the adjustment of gasket, it is also more convenient in the maintenance.

In order to achieve the purpose, the utility model discloses a novel circular cylinder structure, including the cylinder body of integral type and the piston of setting in the cylinder body, the cylinder body top is equipped with the blind end, and the piston is well logical structure, and the needle sets up downwards in the setting intracavity of central point position, and set up and be equipped with the cushion between the chamber, set up the chamber top and compressed tightly by the briquetting, and the briquetting compresses tightly the needle, piston and cylinder body sealing connection, and the cylinder body communicates respectively there is the gas crossing at the upside and the downside of piston.

Furthermore, the middle part of the piston is provided with a first sealing groove, and the bottom of the piston is provided with a second sealing groove.

Further, the closed end is connected with the top of the cylinder body in a sealing mode.

Further, the top of the piston is also provided with a third sealing groove.

Further, the briquetting covers the third seal groove and is connected with setting up the chamber interference.

Furthermore, the top of the pressing block is provided with a threaded external interface.

To sum up, the utility model discloses possess following advantage:

the utility model discloses the holistic setting of cylinder body, easily dismouting, installation and easy maintenance to, through setting up the setting of chamber and gasket, can finely tune the length of needle, the suitability is stronger, and, through the adjustment of gasket, it is also more convenient in the maintenance.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Detailed Description

The invention will be further described with reference to the following drawings and examples:

example (b):

a novel circular cylinder structure is shown in figure 1 and comprises an integrated cylinder body 1 and a piston 2 arranged in the cylinder body 1, wherein a closed end 7 is arranged at the top of the cylinder body 1, and the closed end 7 is hermetically connected with the cylinder body 1 to form the sealing of the upper side of a cylinder cavity.

Inside the cylinder body, piston 2 is well logical structure, and needle 3 sets up the chamber 21 in central point puts and sets up the chamber down, and with set up and be equipped with cushion 4 between the chamber 21, the setting of this cushion, can be the individual layer, also can be the multilayer, can realize the fine setting of needle height, guarantees the accuracy of needle installation.

On the positioning fixation of the valve needle, the top of the setting cavity 21 is pressed by the pressing block 5, and the pressing block 5 presses the valve needle 3.

In the sealing and connecting arrangement, the top of the piston 2 is also provided with a third sealing groove 24, and the pressing block 5 covers the third sealing groove 24 and is in interference connection with the setting cavity 21.

Namely, the valve needle and the cushion block are pressed tightly in the setting cavity by the pressing block from top to bottom.

Meanwhile, a sealing ring is arranged in the third sealing groove 24, so that the sealing of the inside and the cavity of the cylinder body is realized.

It is worth noting that the top of the pressing block 5 is provided with a threaded external interface 51, so that the pressing block is convenient to disassemble, and the whole maintenance is more convenient.

In the piston movement mechanism, the piston 2 is hermetically connected to the cylinder 1, and the cylinder 1 is communicated with an air port 6 at each of upper and lower sides of the piston 2.

Continuing to refer to the attached drawing 1, the middle part of the piston 2 is provided with a first sealing groove 22, the bottom part is provided with a second sealing groove 23, and sealing rings are arranged in the first sealing groove 22 and the second sealing groove 23, namely, the piston divides the interior of the cylinder body 1 into an upper sealing cavity and a lower sealing cavity, and under the action of air guiding of an air passage opening, the piston can seal a hot nozzle in the cylinder body 1 according to the requirement or not, so that the piston is determined to be positioned at the upper side or the lower side.

When the hot nozzle is opened, the piston is positioned at the upper side, and when the hot nozzle is closed, the piston is positioned at the lower side.

To sum up, the holistic setting of this scheme cylinder body, easily dismouting, installation and easy maintenance to, through the setting that sets up chamber and gasket, can finely tune the length of needle, the suitability is stronger, and, through the adjustment of gasket, it is also more convenient in the maintenance.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements.

The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

It will be understood that the embodiments described above are illustrative only and not restrictive, and that various obvious and equivalent modifications and substitutions may be made by those skilled in the art without departing from the basic principles of the invention, and are intended to be included within the scope of the appended claims.

Claims

1. A novel circular cylinder structure, its characterized in that: cylinder body (1) and setting including the integral type are in piston (2) in cylinder body (1), cylinder body (1) top is equipped with blind end (7), piston (2) are well logical structure, and needle (3) set up downwards in central point puts setting up chamber (21), and with set up and be equipped with cushion (4) between chamber (21), it is compressed tightly by briquetting (5) to set up chamber (21) top, just briquetting (5) compress tightly needle (3), piston (2) with cylinder body (1) sealing connection, just cylinder body (1) is in the upside and the downside of piston (2) communicate respectively has gas crossing (6).

2. The novel circular cylinder structure of claim 1, wherein: the middle part of the piston (2) is provided with a first sealing groove (22), and the bottom of the piston is provided with a second sealing groove (23).

3. The novel circular cylinder structure of claim 2, wherein: the closed end (7) is connected with the top of the cylinder body (1) in a sealing way.

4. The novel circular cylinder structure of claim 2, wherein: and a third sealing groove (24) is also formed in the top of the piston (2).

5. The novel circular cylinder structure of claim 4, characterized in that: the pressing block (5) covers the third sealing groove (24) and is in interference connection with the setting cavity (21).

6. The novel circular cylinder structure of claim 5, characterized in that: the top of the pressing block (5) is provided with a threaded external interface (51).