CN216579009U

CN216579009U - Multi-cavity hot runner structure

Info

Publication number: CN216579009U
Application number: CN202123139524.3U
Authority: CN
Inventors: 赵思强
Original assignee: Shenzhen Mai Te Hot Runner Co ltd
Current assignee: Shenzhen Mai Te Hot Runner Co ltd
Priority date: 2021-12-15
Filing date: 2021-12-15
Publication date: 2022-05-24
Anticipated expiration: 2031-12-15

Abstract

The utility model relates to a multi-cavity hot runner structure which comprises a hot flow plate, wherein a hot nozzle is fixedly arranged at the bottom of the hot flow plate, a mounting hole is formed in the back surface of the hot flow plate, a bolt is connected with the back surface of the hot flow plate in a threaded manner, a flow dividing pipe is fixedly arranged in the hot flow plate, a heating ring is fixedly arranged in the hot nozzle, and a pushing mechanism is arranged in the hot nozzle. This multi-cavity hot runner structure, CD-ROM drive motor's output shaft passes through drive assembly and drives the transfer line and rotate, will make the slurcam rotate during the rotation, the slurcam will be to one side shunt tubes of buffer spring, make the shunt tubes rock, thereby when increasing solid-liquid state's plastic granules flows, can also rock the remaining solid-liquid plastic granules of hot runner pipeline inner wall simultaneously and drop, avoid the hot runner the condition that blocks up to appear, make the working process of hot runner more smooth, increase the efficiency of injection molding.

Description

Multi-cavity hot runner structure

Technical Field

The utility model relates to the technical field of hot runners, in particular to a multi-cavity hot runner structure.

Background

The hot runner ensures that the plastic of the runner and the sprue keeps a molten state by a heating method, and because the heating rod and the heating ring are arranged near or in the center of the runner, the whole runner from the nozzle outlet of the injection molding machine to the sprue is in a high-temperature state, so that the plastic in the runner keeps molten, the runner does not need to be opened to take out the condensate after the machine is stopped, and the runner only needs to be heated to the required temperature when the machine is restarted, so the hot runner process is sometimes called as a heat collecting pipe system or a runner-free mold.

The hot runner is used in an injection mold, a heating component system for injecting melted plastic particles into a cavity of the mold consists of a hot nozzle, a flow distribution plate, a temperature control box, accessories and the like, but the traditional hot runner is easy to have the conditions that the plastic particles flow slowly, the interior of the hot runner is easy to accumulate and the hot runner is easy to block in the working process, so that the multi-cavity hot runner structure is provided to solve the problems.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides a multi-cavity hot runner structure which has the advantages of increasing the liquid flowing speed, being not easy to block and the like, and solves the problems that plastic particles are easy to flow slowly, the interior of the traditional hot runner is easy to accumulate and the traditional hot runner is easy to block in the working process.

In order to achieve the purpose, the utility model provides the following technical scheme: a multi-cavity hot runner structure comprises a hot flow plate, wherein a hot nozzle is fixedly installed at the bottom of the hot flow plate, an installation hole is formed in the back surface of the hot flow plate, a bolt is connected to the back surface of the hot flow plate in a threaded manner, a flow dividing pipe is fixedly installed inside the hot flow plate, a heating ring is fixedly installed inside the hot nozzle, and a pushing mechanism is arranged inside the hot nozzle;

the pushing mechanism comprises an inner barrel, an inner barrel is fixedly mounted inside the hot nozzle, a buffer spring is fixedly mounted on the inner wall of the inner barrel, a heat insulation box is fixedly mounted on the inner wall of the inner barrel and located on the other side of the buffer spring, a driving motor is fixedly mounted inside the heat insulation box, a transmission rod is movably mounted at the bottom of the heat insulation box, a transmission assembly is arranged between the driving motor and the transmission rod, and a pushing plate is fixedly mounted on the outer surface of the transmission rod.

Furthermore, the top of the hot nozzle is fixedly provided with an installation shaft, and the top end of the installation shaft penetrates through the heat flow plate and extends into the heat flow plate.

Furthermore, the bottom end of the shunt tube is inserted into the hot nozzle, and the heating ring is fixedly arranged on the outer surface of the shunt tube.

Furthermore, the inner barrel is sleeved with the outer surface of the shunt pipe, and one end, far away from the inner wall of the inner barrel, of the buffer spring is in contact with the shunt pipe.

Further, the bottom of transfer line extends to the inside of inner tube, and is same root the push pedal quantity of transfer line surface is no less than three, and the push pedal lies in same one side.

Furthermore, the transmission assembly comprises two transmission gears, the two transmission gears are fixedly arranged on the output shaft of the driving motor and the outer surface of the transmission rod respectively, and the two transmission gears are meshed with each other.

Compared with the prior art, the technical scheme of the application has the following beneficial effects:

the multi-cavity hot runner structure has the advantages that by arranging the pushing mechanism, when plastic particles are injected into the hot runner, the heating ring heats the shunt pipe, the pipe body of the whole shunt pipe is heated according to the heat conduction effect, the plastic particles can keep the temperature after being heated, so that the plastic particles can be ensured to be injected into the shunt pipe to normally flow, in addition, the output shaft of the driving motor drives the transmission rod to rotate through the transmission component in the flowing process, the driving plate can rotate when rotating, the driving plate can move towards the shunt pipe on one side of the buffer spring, the shunt pipe can be swung, so that the plastic particles in a solid-liquid state can be increased, meanwhile, the residual solid-liquid plastic particles on the inner wall of the hot runner pipeline can be swung and dropped, the hot runner blockage situation can be avoided, and the working process of the hot runner is smoother, increasing the efficiency of injection molding.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a front cross-sectional view of the present invention;

FIG. 3 is an enlarged view of the structure of FIG. 2.

In the figure: 1 heat flow plate, 2 heat nozzles, 3 mounting holes, 4 bolts, 5 shunt tubes, 6 heating rings, 7 pushing mechanisms, 701 inner cylinders, 702 buffer springs, 703 heat insulation boxes, 704 driving motors, 705 driving rods, 706 driving components and 707 pushing plates.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

Referring to fig. 1-3, the multi-cavity hot runner structure in this embodiment includes a heat flow plate 1, a hot nozzle 2 is fixedly installed at the bottom of the heat flow plate 1, a mounting hole 3 is formed in the back of the heat flow plate 1, a bolt 4 is connected to the back of the heat flow plate 1 through a thread, a shunt tube 5 is fixedly installed inside the heat flow plate 1, a heating ring 6 is fixedly installed inside the hot nozzle 2, and a pushing mechanism 7 is installed inside the hot nozzle 2;

the pushing mechanism 7 comprises an inner cylinder 701, an inner cylinder 701 is fixedly installed inside the thermal nozzle 2, a buffer spring 702 is fixedly installed on the inner wall of the inner cylinder 701, a heat insulation box 703 is fixedly installed on the inner wall of the inner cylinder 701 and positioned on the other side of the buffer spring 702, a driving motor 704 is fixedly installed inside the heat insulation box 703, a transmission rod 705 is movably installed at the bottom of the heat insulation box 703, a transmission assembly 706 is arranged between the driving motor 704 and the transmission rod 705, a pushing plate 707 is fixedly installed on the outer surface of the transmission rod 705, when plastic particles are injected into the hot runner, the shunt tube 5 is heated by the heating ring 6, the whole tube body of the shunt tube 5 is heated according to the heat conduction effect, the plastic particles can keep temperature after being heated, so that the plastic particles are normally injected into the shunt tube 5 to flow normally, and the output shaft of the driving motor 704 drives the transmission rod 705 to rotate through the transmission assembly 706 in the flowing process, will make during the rotation pushing plate 707 rotate, pushing plate 707 will be to one side shunt tubes 5 of buffer spring 702 for shunt tubes 5 rocks, thereby when increasing solid-liquid state's plastic pellet and flowing, can also rock the remaining solid-liquid plastic pellet of hot runner pipeline inner wall simultaneously and drop, avoids the hot runner the condition that blocks up to appear, makes the working process of hot runner more smooth, increases the efficiency of injection molding.

When in implementation, the method comprises the following steps:

1) firstly, the driving rod 705 is driven to rotate through the driving component 706 by the output shaft of the driving motor 704, and the driving plate 707 rotates when the driving rod rotates;

2) then the pushing plate 707 will move toward the shunt pipe 5 on one side of the buffer spring 702, so that the shunt pipe 5 shakes, thereby increasing the time when the plastic particles in solid-liquid state flow;

3) then shaking and dropping solid-liquid plastic particles remained on the inner wall of the hot runner pipeline;

4) finally, the shunt pipe 5 is heated by the heating ring 6, the whole pipe body of the shunt pipe 5 is heated according to the heat conduction effect, and plastic particles can keep the temperature after heating, so that the plastic particles can be guaranteed to be injected into the shunt pipe 5 and flow normally.

In summary, the multi-cavity hot runner structure, by providing the pushing mechanism 7, when the hot runner injects plastic particles, the heating ring 6 heats the shunt tube 5, according to the heat conduction effect, the whole tube body of the shunt tube 5 is heated, and after heating, the plastic particles can be kept at a temperature, so as to ensure that the plastic particles are injected into the shunt tube 5 to normally flow, and in the flowing process, the output shaft of the driving motor 704 drives the driving rod 705 to rotate through the driving component 706, so that the driving plate 707 rotates during rotation, the driving plate 707 rotates towards the shunt tube 5 on one side of the buffer spring 702, so that the shunt tube 5 shakes, thereby increasing the flow of the plastic particles in a solid-liquid state, and simultaneously, the residual solid-liquid plastic particles on the inner wall of the hot runner pipeline can shake and fall off, thereby avoiding the hot runner from being blocked, the work process of the hot runner is smoother, the injection molding efficiency is increased, and the problems that plastic particles are slow to flow and easy to accumulate and block in the traditional hot runner during the work process are solved.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in the process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A multi-chamber hot runner structure, includes heat flow plate (1), its characterized in that: the bottom of the heat flow plate (1) is fixedly provided with a heat nozzle (2), the back of the heat flow plate (1) is provided with a mounting hole (3), the back of the heat flow plate (1) is in threaded connection with a bolt (4), a shunt tube (5) is fixedly mounted inside the heat flow plate (1), a heating ring (6) is fixedly mounted inside the heat nozzle (2), and a pushing mechanism (7) is arranged inside the heat nozzle (2);

the pushing mechanism (7) comprises an inner cylinder (701), the inner cylinder (701) is fixedly installed inside the hot nozzle (2), a buffer spring (702) is fixedly installed on the inner wall of the inner cylinder (701), a heat insulation box (703) is fixedly installed on the inner wall of the inner cylinder (701) and located on the other side of the buffer spring (702), a driving motor (704) is fixedly installed inside the heat insulation box (703), a transmission rod (705) is movably installed at the bottom of the heat insulation box (703), a transmission assembly (706) is arranged between the driving motor (704) and the transmission rod (705), and a pushing plate (707) is fixedly installed on the outer surface of the transmission rod (705).

2. A multi-cavity hot runner structure as claimed in claim 1, wherein: the top of the hot nozzle (2) is fixedly provided with an installation shaft, and the top end of the installation shaft penetrates through the heat flow plate (1) and extends into the heat flow plate (1).

3. A multi-cavity hot runner structure as claimed in claim 1, wherein: the bottom end of the shunt pipe (5) is inserted into the hot nozzle (2), and the heating ring (6) is fixedly arranged on the outer surface of the shunt pipe (5).

4. A multi-cavity hot runner structure as claimed in claim 1, wherein: the outer surface of shunt tubes (5) is sleeved on the inner barrel (701), and one end, far away from the inner wall of the inner barrel (701), of the buffer spring (702) is in contact with the shunt tubes (5).

5. A multi-cavity hot runner structure as claimed in claim 1, wherein: the bottom end of the transmission rod (705) extends to the inside of the inner cylinder (701), the number of the pushing plates (707) on the outer surface of the same transmission rod (705) is not less than three, and the pushing plates (707) are located on the same side.

6. A multi-cavity hot runner structure as claimed in claim 1, wherein: the transmission assembly (706) comprises two transmission gears, the two transmission gears are fixedly arranged on the output shaft of the driving motor (704) and the outer surface of the transmission rod (705) respectively, and the two transmission gears are meshed with each other.