CN210257063U - Novel body of hot runner - Google Patents

Abstract

The utility model discloses a novel body of hot runner, including hot mouth body, the thread groove has been seted up to the upper end of hot mouth body, the lower pot head of thread groove is established and is installed sealed cushion, the screw thread has connect the holding ring soon on the thread groove, two terminals are installed to the symmetry on the lateral wall of holding ring, outer annular conductive groove and interior annular conductive groove have been seted up to the lower extreme of holding ring, and two terminals respectively with outer annular conductive groove and interior annular conductive groove between electric connection. The utility model has the advantages of reasonable design, pack the heat-conducting agent through the spiral heat conduction groove at spiral heating pipe, make its heating even, increase the precision of moulding plastics, through the sharp mouth of screwed connection setting, can require to dismantle fast to change according to the product, increase the flexibility of device, hot mouth body adopts screwed connection with the holding ring, reduces the production degree of difficulty and saves steel and consume.

Description

Novel body of hot runner

Technical Field

The utility model relates to a hot runner field especially relates to a novel body of hot runner.

Background

The hot runner is a heating assembly system used in an injection mold and used for injecting melted plastic particles into a cavity of the mold, the hot runner mold is a brand-new structure which heats a pouring channel and a flow channel of a traditional mold or a three-plate mold, the flow channel and the pouring channel do not need to be taken out during each forming, the hot runner ensures that the plastic in the flow channel and the pouring channel keeps a molten state by a heating method, because a heating rod and a heating ring are arranged near or in the center of the flow channel, the whole flow channel from a nozzle outlet of an injection molding machine to the pouring gate is in a high-temperature state, so that the plastic in the flow channel keeps molten, the flow channel does not need to be opened after the machine is shut down, the flow channel is only required to be heated to the required temperature during the restart, therefore, the hot runner process is sometimes called as a heat collecting pipe system or as a no-flow channel mold, the performance of the hot nozzle directly determines the precision and yield of injection molding.

At present, the body of most hot mouth adopts the straight tube formula, the inside and outside difference in temperature of the hot mouth of this structure is great at the in-process of moulding plastics, probably lead to hot mouth body to take place to warp, be unfavorable for injection moulding, and reduce hot mouth life-span, a small part has adopted heating pipe or heating wire to wind and heat it on hot mouth body, reduce inside and outside difference in temperature, and make this internal melt of hot mouth keep the molten state, but present heating pipe and heating wire are because less with the contact surface of hot mouth body, consequently can produce the inhomogeneous phenomenon of heating, influence the effect of moulding plastics.

Therefore, we have designed a new body of hot runner to solve the above problems.

Disclosure of Invention

The utility model aims at solving the defects existing in the prior art and providing a novel body of a hot runner.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a novel body of hot runner, includes hot mouth body, the thread groove has been seted up to the upper end of hot mouth body, the lower pot head of thread groove is established and is installed sealed cushion, the screw thread has connect the holding ring soon on the thread groove, two terminals are installed to the symmetry on the lateral wall of holding ring, outer annular conductive tank and interior annular conductive tank have been seted up to the lower extreme of holding ring, and two terminals respectively with outer annular conductive tank and interior annular conductive tank between electric connection.

Preferably, a spiral heat conducting groove is formed in the hot nozzle body, a spiral heating pipe is embedded in the spiral heat conducting groove, a spiral sealing strip is arranged on the upper cover of the spiral heat conducting groove, two ends of the spiral heating pipe are respectively located at the left end and the right end of the hot nozzle body, mounting caps are respectively covered at two ends of the spiral heating pipe, each mounting cap is provided with a right-angle conducting pipe in an inserted mode, and the two right-angle conducting pipes are respectively inserted into the outer annular conducting groove and the inner annular conducting groove in a sliding mode.

Preferably, both ends of the spiral heating pipe include wire connecting rods, the wire connecting rods are inserted into the right-angle conductive pipes, that is, the right-angle conductive pipes are electrically connected with the wire connecting rods, and the spiral heat conducting grooves are filled with heat conducting agents around the spiral heating pipe.

Preferably, the lower end of the hot nozzle body is provided with a sharp nozzle, the upper end of the sharp nozzle is provided with a threaded ring, the lower end of the hot nozzle body is provided with an annular threaded groove, and the threaded ring of the sharp nozzle is screwed in the annular threaded groove.

Preferably, the hot nozzle body comprises a circulation hole, the lower end of the circulation hole is provided with a conical connecting port, the upper end of the center of the sharp nozzle is provided with an inverted conical groove, the inverted conical groove is matched with the conical connecting port, the inner bottom wall of the inverted conical groove is provided with a sharp nozzle hole, and the sharp nozzle hole is communicated with the circulation hole.

The utility model discloses following beneficial effect has:

1. the upper end of the hot nozzle body is connected with the positioning ring through the thread groove, steel consumption during production is saved in the production and manufacturing process, machining time can be reduced, the yield of the hot nozzle body is increased, and meanwhile the cost of the hot nozzle body is reduced.

2. The spiral heat conduction groove has been seted up on the surface of hot mouth body, and the spiral heating pipe of installation is embedded in the spiral heat conduction groove for the constancy of temperature of hot mouth body prevents that inside and outside high temperature difference from leading to hot mouth body to take place deformation, influences hot mouth body work, thereby has reduced hot mouth body life-span, and the packing all around of spiral heating pipe has the heat-conducting agent, makes the heat conduction heating more even, and more ordinary column type body life is longer, and the hot working precision is higher.

3. The sharp mouth passes through the mode and this body coupling of hot mouth of spiral, and in the use, can adopt the sharp mouth processing of different precisions according to the product demand of difference through connecing the mode quick replacement sharp mouth type soon, increases the flexibility of device, and the control sharp mouth of being convenient for is flowed.

To sum up, the utility model has the advantages of reasonable design, pack the heat-conducting agent through the spiral heat conduction inslot at spiral heating pipe, make its heating even, increase the precision of moulding plastics, through the sharp mouth of screwed connection setting, can dismantle the change fast according to the product requirement, increase the flexibility of device, hot mouth body adopts screwed connection with the holding ring, reduces the production degree of difficulty and saves steel and consume.

Drawings

Fig. 1 is a schematic structural view of a new hot runner body according to the present invention;

fig. 2 is an enlarged view of a positioning ring portion of a novel hot runner body according to the present invention;

fig. 3 is an enlarged view of the sharp-nose portion of the new hot runner body according to the present invention.

In the figure: the hot nozzle comprises a hot nozzle body 1, a spiral heating pipe 2, a spiral seal strip 3, a right-angle conducting pipe 4, a sealing rubber gasket 5, a thread groove 6, a positioning ring 7, a binding post 8, an installation cap 9, a circulation hole 10, a conical connecting port 11, a sharp nozzle 12, a sharp nozzle hole 13 and a thread ring 14.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-3, a novel body of hot runner, including hot mouth body 1, thread groove 6 has been seted up to the upper end of hot mouth body 1, and the lower pot head of thread groove 6 is established and is installed sealed cushion 5, and the screw has connect holding ring 7 soon on the thread groove 6, and two terminals 8 are installed to the symmetry on the lateral wall of holding ring 7, and outer annular conductive slot and interior annular conductive slot have been seted up to the lower extreme of holding ring 7, and two terminals 8 respectively with outer annular conductive slot and interior annular conductive slot between electric connection.

A spiral heat conducting groove is formed in the hot nozzle body 1, a spiral heating pipe 2 is embedded and installed in the spiral heat conducting groove, a spiral seal strip 3 is arranged on the upper cover of the spiral heat conducting groove, two ends of the spiral heating pipe 2 are located at the left end and the right end of the hot nozzle body 1 respectively, installation caps 9 are arranged at two ends of the spiral heating pipe 2 respectively, a right-angle conducting pipe 4 is inserted in each installation cap 9, the two right-angle conducting pipes 4 are inserted in the outer annular conducting groove and the inner annular conducting groove in a sliding mode respectively, two ends of the spiral heating pipe 2 comprise wire connecting rods, the wire connecting rods are inserted in the right-angle conducting pipes 4, namely the right-angle conducting pipes 4 are electrically connected with the wire connecting rods, and heat conducting agents are filled around the spiral heating pipe;

the lower extreme of hot mouth body 1 installs sharp mouth 12, threaded ring 14 is installed to the upper end of sharp mouth 12, annular thread groove has been seted up to the lower extreme of hot mouth body 1, and threaded ring 14 screw of sharp mouth 12 connects soon in annular thread groove, hot mouth body 1 includes opening 10, the lower extreme of opening 10 is seted up for toper connector 11, the inverted cone shape groove has been seted up to the center upper end of sharp mouth 12, and the inverted cone shape groove agrees with toper connector 11, sharp mouth hole 13 has been seted up on the interior diapire in inverted cone shape groove, and sharp mouth hole 13 communicates with opening 10.

The utility model discloses when using, holding ring 7 and hot nozzle body 1 pass through 6 screwed connection of thread groove, then fix on hot runner injection mold, melt under the molten state flows into in hot nozzle body 1's opening 10, two 8 circular telegrams of terminal make spiral heating pipe 2 generate heat this moment, then heat conduction to the heat conducting agent of filling on, the heat conducting agent with the even conduction of heat large tracts of land to hot nozzle body 1 on, reduce the inside and outside difference in temperature, the melt is through the sharp mouth hole 13 blowout of the sharp mouth 12 of opening 10 lower extreme and is moulded plastics, according to different product specification and required precision, can connect soon fast and dismantle the change sharp mouth model, increase the flexibility of device, and the production cost is reduced.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (5)

1. The utility model provides a novel body of hot runner, includes hot mouth body (1), its characterized in that, thread groove (6) have been seted up to the upper end of hot mouth body (1), the lower pot head of thread groove (6) is established and is installed sealed cushion (5), the screw thread has connect holding ring (7) soon on thread groove (6), two terminal (8) are installed to the symmetry on the lateral wall of holding ring (7), outer annular conductive groove and interior annular conductive groove have been seted up to the lower extreme of holding ring (7), and two terminal (8) respectively with outer annular conductive groove and interior annular conductive groove between electric connection.

2. The novel hot runner body according to claim 1, wherein a spiral heat conducting groove is formed in the hot nozzle body (1), a spiral heating pipe (2) is embedded and mounted in the spiral heat conducting groove, a spiral seal (3) is arranged on the spiral heat conducting groove in a covering manner, two ends of the spiral heating pipe (2) are respectively located at the left end and the right end of the hot nozzle body (1), mounting caps (9) are respectively arranged at two ends of the spiral heating pipe (2), a right-angle conducting pipe (4) is inserted into each mounting cap (9), and the two right-angle conducting pipes (4) are respectively inserted into the outer annular conducting groove and the inner annular conducting groove in a sliding manner.

3. The novel hot runner body as claimed in claim 2, wherein the two ends of the spiral heating pipe (2) each include a wire connecting rod, and the wire connecting rods are inserted into the right-angle conductive pipes (4), that is, the right-angle conductive pipes (4) are electrically connected with the wire connecting rods, and the spiral heat conducting grooves are filled with a heat conducting agent around the spiral heating pipe (2).

4. The hot runner novel body as claimed in claim 1, characterized in that the lower end of the hot nozzle body (1) is provided with a sharp nozzle (12), the upper end of the sharp nozzle (12) is provided with a threaded ring (14), the lower end of the hot nozzle body (1) is provided with an annular threaded groove, and the threaded ring (14) of the sharp nozzle (12) is screwed in the annular threaded groove.

5. The novel hot runner body as claimed in claim 4, wherein the hot nozzle body (1) includes a flow hole (10), the lower end of the flow hole (10) is provided with a tapered connection port (11), the central upper end of the sharp nozzle (12) is provided with an inverted cone-shaped groove, the inverted cone-shaped groove is fitted with the tapered connection port (11), the inner bottom wall of the inverted cone-shaped groove is provided with a sharp nozzle hole (13), and the sharp nozzle hole (13) is communicated with the flow hole (10).

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