CN210257080U

CN210257080U - Single-point needle valve cylinder mechanism with cooling structure

Info

Publication number: CN210257080U
Application number: CN201921210654.1U
Authority: CN
Inventors: 李伟茂; 邓丽红; 冯沛杰
Original assignee: Dongguan Baosijie Die Technology Co ltd
Current assignee: Dongguan Baosijie Die Technology Co ltd
Priority date: 2019-07-30
Filing date: 2019-07-30
Publication date: 2020-04-07
Anticipated expiration: 2029-07-30

Abstract

The utility model discloses a single-point needle valve cylinder body mechanism with a cooling structure, which comprises a cylinder cover, a cylinder body and a base which are sequentially arranged from top to bottom, wherein a top cavity, a middle cavity and a bottom cavity are respectively arranged on the cylinder cover, the cylinder body and the base, the top cavity, the middle cavity and the bottom cavity are sealed to form an inner cavity, a main injection nozzle is arranged in the top cavity, the upper end of the main injection nozzle is butted with an injection nozzle SR, the bottom end of the main injection nozzle is movably butted with a hot nozzle body, heaters are respectively arranged at the outer sides of the main injection nozzle and the hot nozzle body, hot runners for conveying hot melt injection molding materials are respectively arranged on the main injection nozzle and the hot nozzle body, and movable needle; the piston extends into the middle cavity from the bottom end of the bottom cavity, is sleeved outside the hot nozzle body and can drive the hot nozzle body to move up and down in the inner cavity, so that the hot nozzle body is movably communicated with a hot runner matched with the main nozzle; still establish the cooling runner of inlaying in the cylinder body lateral wall on the cylinder body, the cooling runner import passes through cooling tube and outside delivery pipe intercommunication, and in outside cooling water pours into the cooling runner along the cooling tube into, the matching carries out water-cooling to the cylinder body.

Description

Single-point needle valve cylinder mechanism with cooling structure

Technical Field

The utility model belongs to the technical field of the injection mold technique and specifically relates to a from single-point needle valve cylinder body mechanism of taking cooling structure.

Background

In the production of accurate plastic product, sometimes in order to guarantee that the product keeps moulding plastics for a long time at the in-process of moulding plastics, because the wearing and tearing of the sealing washer of hot runner that lead to hot runner needle valve system high temperature after producing a period, reason such as not durable, we will dismantle hot runner system change sealing washer often, just can reach best motion state, the one-point needle valve that hot runner company used commonly will wholly tear the default body and just can change the sealing washer, wastes time and energy, influences going on of normal production.

Therefore, a single point needle valve cylinder with a cooling structure capable of solving the above technical problems is demanded in the market.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem to the problem among the above-mentioned prior art, provide a from single-point needle valve cylinder body mechanism of taking cooling structure, this single-point needle valve cylinder body mechanism constant temperature effect is obvious, avoids the life-span of the sealing washer of high temperature influence hot runner.

In order to solve the technical problem, the utility model adopts a technical scheme that a single-point needle valve cylinder body mechanism with a cooling structure comprises a cylinder cover, a cylinder body and a base which are sequentially arranged from top to bottom, wherein a top cavity, a middle cavity and a bottom cavity are respectively arranged on the cylinder cover, the cylinder body and the base, the top cavity, the middle cavity and the bottom cavity are sealed to form an inner cavity for embedding a main injection nozzle, a hot nozzle body and a piston, the main injection nozzle is arranged in the top cavity, the upper end of the main injection nozzle is butted with an injection nozzle SR arranged at the top end of the cylinder cover, the bottom end of the main injection nozzle is movably butted with the hot nozzle body arranged in the middle cavity, heaters are respectively arranged at the outer sides of the main injection nozzle and the hot nozzle body, hot runners for conveying hot melt injection molding materials are respectively arranged on the main injection nozzle and the hot nozzle body, and a movable needle is arranged in the; the piston extends into the middle cavity from the bottom end of the bottom cavity, is sleeved outside the hot nozzle body and can drive the hot nozzle body to move up and down in the inner cavity, so that the hot nozzle body is movably communicated with a hot runner matched with the main nozzle; still establish the cooling runner of inlaying in the cylinder body lateral wall on the cylinder body, the cooling runner import passes through cooling tube and outside delivery pipe intercommunication, and outside cooling water pours into along the cooling tube in the cooling runner, the matching is right the cylinder body carries out water-cooling.

As a further elaboration of the above technical solution:

in the above technical scheme, the cooling pipe is a teflon pipe.

In the technical scheme, the bottom of the middle cavity and the bottom cavity are both provided with a sealing ring, and the piston is connected with the cylinder body and the base in a sealing manner through the sealing ring.

In the above technical solution, the sealing ring is an O-shaped sealing ring.

In the technical scheme, the cylinder cover, the cylinder body and the base are connected through bolts.

In the technical scheme, the bottom end of the main nozzle is provided with a shoulder pole containing and embedding cavity, the shoulder pole containing and embedding cavity is internally provided with a shoulder pole and is butted with a valve needle sleeve arranged at the matching position of the upper end of the hot nozzle body, the valve needle vertically penetrates through the hot nozzle body and is connected with the shoulder pole after penetrating through the valve needle sleeve, and the valve needle sleeve is matched with the shoulder pole to assemble the valve needle on the hot nozzle body.

The utility model has the advantages that the single-point needle valve cylinder mechanism is connected to the cylinder body of the single-point needle valve cylinder mechanism through the Teflon cooling pipe and is connected with the external cooling water supply pipe through the cooling pipe, thereby cooling the single-point needle valve cylinder body; the utility model discloses a single-point needle valve cylinder body mechanism constant temperature effect is obvious, can avoid the life-span of the sealing washer of high temperature influence hot runner.

Drawings

FIG. 1 is a cross-sectional view of a single point needle valve cylinder mechanism of the apparatus of the present invention;

fig. 2 is an exploded view of fig. 1.

In the figure, 001, an inner cavity, 002, a hot runner, 003, a cooling runner, 004, a cooling runner inlet, 1, a cylinder cover, 2, a cylinder body, 3, a base, 4, a main injection nozzle, 5, a hot nozzle body, 6, a piston, 7, a main injection nozzle SR,8, a heater, 9, a valve needle, 10, a sealing ring, 11, a shoulder pole, 12, a valve needle sleeve, 101, a top cavity, 201, a middle cavity, 301, a bottom cavity and 401 are provided with a shoulder pole accommodating embedded cavity.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The embodiments described by referring to the drawings are exemplary and intended to be used for explaining the present application and are not to be construed as limiting the present application. In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and thus should not be considered limiting. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise. In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral connections; 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 application can be understood by those of ordinary skill in the art as appropriate. In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.

Fig. 1-2 illustrate a specific embodiment of a single point needle valve cylinder mechanism with a cooling structure according to the present invention, referring to fig. 1-2, a single point needle valve cylinder mechanism with a cooling structure comprises a cylinder cover 1, a cylinder body 2 and a base 3 sequentially arranged from top to bottom, wherein the cylinder cover 1, the cylinder body 2 and the base 3 are respectively provided with a top cavity 101, a middle cavity 201 and a bottom cavity 301, the top cavity 101, the middle cavity 201 and the bottom cavity 301 are sealed to form an inner cavity 001 for embedding a main nozzle 4, a hot nozzle body 5 and a piston 6, the main nozzle 4 is arranged in the top cavity 101, the upper end of the main nozzle 4 is butted with an injection nozzle SR7(SR is a place where a gate is matched with an injection molding machine) arranged at the top end of the cylinder cover 1, the bottom end of the main nozzle 4 is butted with the hot nozzle body 5 movably arranged in the middle cavity 201, and a heater 8 is arranged outside the main nozzle 4 and the hot nozzle body 5, the main injection nozzle 4 and the hot nozzle body 5 are both provided with a hot runner 002 for conveying hot-melt injection molding materials, a movable valve needle 9 is arranged in the hot runner 002 of the hot nozzle body 5, and the valve needle is used for controlling the flow of the hot-melt injection molding materials conveyed along the hot runner 002; the piston 6 extends into the middle cavity 201 from the bottom end of the bottom cavity 301, the piston 6 is further sleeved outside the hot nozzle body 5 and can drive the hot nozzle body 5 to move up and down in the inner cavity 001, and the hot nozzle body 5 is movably communicated with a hot runner 002 matched with the main nozzle 4; still establish the cooling runner 003 of inlaying in the cylinder body lateral wall on the cylinder body 2, it needs to explain that, the position of cooling runner 003 and the position phase-match that admits air of single-point needle valve cylinder body mechanism, that is to say the cooling runner also can be used for admitting air, matches the drive piston 6 and removes, cooling runner 003 import 004 passes through cooling tube (the attached drawing does not assemble) and outside delivery pipe (the attached drawing does not show) intercommunication, and outside cooling water pours into along the cooling tube in the cooling runner 003, the matching is right cylinder body 2 carries out water-cooling to solve the problem of the wearing and tearing of the sealing washer that leads to the hot runner because of the high temperature.

Preferably, in the present embodiment, the cooling pipe is a teflon pipe; the bottoms of the middle cavity 201 and the bottom cavity 301 are respectively provided with a sealing ring 10, the piston 6 is hermetically connected with the cylinder body 2 and the base 3 through the sealing ring 10, and the sealing ring 10 is preferably an O-shaped sealing ring; in this embodiment, the cylinder cover 1, the cylinder body 2 and the base 3 are connected by bolts (not shown in the drawings, only the assembling position of the bolts is shown), in this embodiment, a shoulder pole accommodating and embedding cavity 401 is formed at the bottom end of the main nozzle 4, a shoulder pole 11 is assembled in the shoulder pole accommodating and embedding cavity 401 and is butted with a valve needle sleeve 12 arranged at a matching position at the upper end of the hot nozzle body 5, the valve needle 9 vertically penetrates through the hot nozzle body 5 and is connected with the shoulder pole 11 after penetrating through the valve needle sleeve 12, and the valve needle sleeve 12 is matched with the shoulder pole 11 to assemble the valve needle 9 on the hot nozzle body 5.

The single-point needle valve cylinder body mechanism of the embodiment is connected to the cylinder body 2 of the single-point needle valve cylinder body mechanism through a Teflon pipe cooling pipe, and is connected with an external cooling water supply pipe through a cooling pipe, so that the single-point needle valve cylinder body is cooled; the constant temperature effect of the single-point needle valve cylinder body mechanism of the embodiment is obvious, and the problems that the sealing ring of the hot runner and the single-point needle valve cylinder body are short in service life due to high temperature can be effectively solved.

The above is not intended to limit the technical scope of the present invention, and any modifications, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention are all within the scope of the technical solution of the present invention.

Claims

1. A single-point needle valve cylinder body mechanism with a cooling structure is characterized by comprising a cylinder cover, a cylinder body and a base which are sequentially arranged from top to bottom, wherein a top cavity, a middle cavity and a bottom cavity are respectively formed on the cylinder cover, the cylinder body and the base, the top cavity, the middle cavity and the bottom cavity are sealed to form an inner cavity for embedding a main injection nozzle, a hot nozzle body and a piston, the main injection nozzle is arranged in the top cavity, the upper end of the main injection nozzle is in butt joint with an injection nozzle SR arranged at the top end of the cylinder cover, the bottom end of the main injection nozzle is in movable butt joint with the hot nozzle body arranged in the middle cavity, heaters are respectively arranged at the outer sides of the main injection nozzle and the hot nozzle body, hot runners for conveying hot-melt injection molding materials are respectively formed on the main injection nozzle and the hot nozzle body, and a movable; the piston extends into the middle cavity from the bottom end of the bottom cavity, is sleeved outside the hot nozzle body and can drive the hot nozzle body to move up and down in the inner cavity, so that the hot nozzle body is movably communicated with a hot runner matched with the main nozzle; still establish the cooling runner of inlaying in the cylinder body lateral wall on the cylinder body, the cooling runner import passes through cooling tube and outside delivery pipe intercommunication, and outside cooling water pours into along the cooling tube in the cooling runner, the matching is right the cylinder body carries out water-cooling.

2. The single point needle valve cylinder mechanism with cooling structure of claim 1, wherein the cooling tube is a teflon tube.

3. The single-point needle valve cylinder mechanism with the cooling structure as claimed in claim 2, wherein the bottom of the middle cavity and the bottom cavity are provided with sealing rings, and the piston is connected with the cylinder and the base in a sealing manner through the sealing rings.

4. The single point needle valve cylinder mechanism with cooling structure of claim 3, wherein the sealing ring is an O-ring.

5. The single-point needle valve cylinder mechanism with the cooling structure as claimed in any one of claims 1 to 4, wherein the cylinder head, the cylinder body and the base are connected through bolts.

6. The single-point needle valve cylinder mechanism with the cooling structure as claimed in claim 5, wherein the bottom end of the main nozzle is provided with a shoulder pole containing and embedding cavity, the shoulder pole containing and embedding cavity is internally provided with a shoulder pole and is in butt joint with a needle sleeve arranged at a matching position at the upper end of the hot nozzle body, the needle vertically penetrates through the hot nozzle body and is connected with the shoulder pole after penetrating through the needle sleeve, and the needle sleeve is matched with the shoulder pole to assemble the needle on the hot nozzle body.