CN218557799U

CN218557799U - Hot nozzle, hot runner system and injection mold

Info

Publication number: CN218557799U
Application number: CN202223169928.1U
Authority: CN
Inventors: 焦太景; 张俊
Original assignee: Amos Intelligent Technology Shenzhen Co ltd
Current assignee: Amos Intelligent Technology Shenzhen Co ltd
Priority date: 2022-11-25
Filing date: 2022-11-25
Publication date: 2023-03-03
Anticipated expiration: 2032-11-25

Abstract

The utility model discloses a hot nozzle, a hot runner system and an injection mold, wherein the hot nozzle comprises a hot nozzle main body, a nozzle and a guide ring, and the hot nozzle main body is provided with a flow passage hole; the nozzle is arranged at one end of the hot nozzle main body and is provided with an ejection hole, and the ejection hole is communicated with the flow passage hole; the guide ring is installed in the hot nozzle main body, the guide ring and the nozzle are located at the same end of the hot nozzle main body, and the outer peripheral edge of the guide ring is arranged in a protruding mode relative to the outer peripheral surface of the hot nozzle main body. The utility model discloses technical scheme can reduce the impaired risk of nozzle in the hot mouth assembling process.

Description

Hot nozzle, hot runner system and injection mold

Technical Field

The utility model relates to the technical field of mold, in particular to hot mouth, hot runner system and injection mold.

Background

At present, a hot runner system is arranged in a plurality of injection molds, and for the installation of the hot runner system, mounting holes are usually arranged on a supporting plate and a movable mold plate, a hot nozzle is inserted into the mounting holes during the installation, and finally a hot runner plate is fixed on the supporting plate. However, in actual installation, since each hot runner system usually has a plurality of hot nozzles, when the hot nozzles are inserted into the mounting holes, the hot nozzles are easily inserted into the mounting holes in a relatively inclined state, which easily causes the nozzles of the hot nozzles to collide with the inner walls of the mounting holes and damage the nozzles, and when the hot nozzles are inserted into the mounting holes, the hot nozzles (the parts already extending into the mounting holes) cannot be observed, so that even if the nozzles are deformed or damaged, the nozzles are difficult to be found, i.e., the nozzles are not favorable for production, and the subsequent maintenance is troublesome.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a hot mouth, aim at reducing the impaired risk of nozzle among the hot mouth assembling process.

In order to achieve the above object, the present invention provides a hot nozzle, including:

a hot nozzle body having a flow passage hole;

a nozzle installed at one end of the hot nozzle body and having an ejection hole communicating with the flow passage hole; and

the guide ring is installed on the hot nozzle main body, the guide ring and the nozzle are located at the same end of the hot nozzle main body, and the outer peripheral edge of the guide ring is arranged in a protruding mode relative to the outer peripheral surface of the hot nozzle main body.

Optionally, the guide ring is annular, and an outer diameter of the guide ring is greater than an outer diameter of the hot nozzle main body.

Optionally, the guide ring is removably mounted to the hot nozzle body.

Optionally, the guide ring is snapped to the hot nozzle body; or, the hot nozzle further comprises a limiting piece clamped on the nozzle, and the guide ring is limited between the limiting piece and the end face of the hot nozzle main body.

Optionally, the hot nozzle body includes a material pipe and a heater sleeved outside the material pipe, the material pipe has the flow passage hole, the guide ring is installed at an end face of the heater, and an outer peripheral edge of the guide ring is arranged in a protruding manner relative to an outer peripheral surface of the heater.

Optionally, the guide ring is mounted at an end face of the hot nozzle body.

Optionally, the material of the guide ring is stainless steel.

The utility model also provides a hot runner system, including hot runner plate and as above hot mouth, hot mouth install in hot runner plate.

The utility model also provides an injection mold, including the mould body and as above-mentioned hot runner system, the mould body is equipped with die cavity, mounting hole and intercommunication the mounting hole with the runner of die cavity, hot runner system's hot mouth install in the mounting hole, the blowout hole of hot mouth passes through the runner with the die cavity intercommunication.

Optionally, the mounting hole includes a first hole section, a guide hole section and a second hole section which are connected in sequence, the diameter of the first hole section is larger than that of the second hole section, the guide hole section is arranged in a reducing mode in the direction close to the second hole section, and the second hole section is arranged close to the pouring gate.

The utility model discloses technical scheme sets up the guide ring through the one end at nozzle place on hot mouth to make the outer peripheral face protrusion setting of the relative hot mouth main part of outer peripheral edge of guide ring, when inserting hot mouth in the mounting hole of mould body like this, the outer peripheral edge of guide ring and the inner wall contact of mounting hole play better guide effect to the installation of hot mouth, can reduce the slope of the relative mounting hole of hot mouth, make the nozzle be located the central point of mounting hole all the time and put. The hot nozzle installation stability is improved, the situation that the hot nozzle shakes in the installation or production process is prevented, the hot nozzle can be better protected, even for a longer hot nozzle, the risk that the nozzle collides the inner wall of the installation hole in the hot nozzle assembly process can be reduced, and the risk that the nozzle is damaged in the hot nozzle assembly process is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic structural view of an embodiment of the hot nozzle of the present invention;

FIG. 2 is an enlarged view taken at A in FIG. 1;

FIG. 3 is a cross-sectional view of the thermal nozzle of FIG. 1;

FIG. 4 is an enlarged view at B in FIG. 3;

fig. 5 is a schematic structural view of an embodiment of the hot runner system of the present invention;

fig. 6 is a partial cross-sectional view of a portion of the mold body and the hot nozzle in an embodiment of the injection mold of the present invention.

The reference numbers indicate:

10. a hot nozzle; 11. a hot nozzle body; 111. a flow passage hole; 112. a material pipe; 113. a heater; 12. a nozzle; 121. a spouting hole; 122. a mouth sleeve; 123. a mouth core; 13. a guide ring; 20. a hot runner plate; 30. a mold body; 31. mounting holes; 311. a first bore section; 312. a second bore section; 313. a pilot hole segment; 314. sealing the hole section; 32. and a gate.

The realization, the functional characteristics and the advantages of the utility model are further explained by combining the embodiment and referring to the attached drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the 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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that, if directional indications (such as up, down, left, right, front, back, 8230; \8230;) are provided in the embodiments of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the attached drawings), and if the specific posture is changed, the directional indications are correspondingly changed.

In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is 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 at least one of the feature. In addition, the expression "and/or" as used throughout is meant to encompass three juxtaposed aspects, exemplified by "A and/or B", including either the A aspect, or the B aspect, or aspects in which both A and B are satisfied. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The utility model provides a hot mouth for injection mold with hot runner system, specifically, injection mold includes mould body and hot runner system, and the mould body is equipped with the runner of die cavity, mounting hole and intercommunication mounting hole and die cavity, and hot runner system's hot mouth is installed in the mounting hole, and the blowout hole of hot mouth passes through runner and die cavity intercommunication.

In the embodiment of the present invention, please refer to fig. 1 to 6 in combination, the hot nozzle 10 includes a hot nozzle body 11, a nozzle 12 and a guide ring 13, the hot nozzle body 11 has a flow passage hole 111, the nozzle 12 is installed at one end of the hot nozzle body 11 and has an ejection hole 121, and the ejection hole 121 is communicated with the flow passage hole 111; the guide ring 13 is mounted on the hot nozzle body 11, the guide ring 13 and the nozzle 12 are located at the same end of the hot nozzle body 11, and the outer periphery of the guide ring 13 is protruded relative to the outer peripheral surface of the hot nozzle body 11.

Specifically, the structure of the nozzle 12 may be various, for example, in one embodiment, the nozzle 12 includes a nozzle sleeve 122 and a nozzle core 123, and the nozzle core 123 is fixed to the flow channel hole 111 by the nozzle sleeve 122. In another embodiment, nozzle 12 includes only a nozzle core 123, and nozzle core 123 is mounted to flow passage aperture 111.

The shape of the guide ring 13 may also be varied, for example, in one embodiment, the guide ring 13 is circular, i.e., the outer diameter of the guide ring 13 is larger than the outer diameter of the hot nozzle body 11. In another embodiment, the guide ring 13 is a regular polygon, and the diameter of the inscribed circle (or circumscribed circle) of the outer contour of the guide ring 13 is larger than that of the hot nozzle body 11. In still other embodiments, the guide ring 13 includes an annular main body and a plurality of arc-shaped protrusions disposed on the outer periphery of the annular main body, and the plurality of arc-shaped protrusions are uniformly distributed along the circumferential direction of the annular main body at intervals, that is, the guide ring 13 is similar to a petal shape.

It can be understood that if the nozzle 12 collides with the inner wall of the mounting hole 31 to deform or notch the nozzle 12 during the process of installing the hot nozzle 10 into the mounting hole 31, effective sealing between the nozzle 12 and the inner wall of the mounting hole 31 cannot be achieved, and during the subsequent injection molding production, plastic easily flows into the mounting hole 31 from the gap between the nozzle 12 and the inner wall of the mounting hole 31, which may affect the product quality and also cause difficulty in maintaining the mold.

The utility model discloses technical scheme sets up guide ring 13 through the one end at nozzle 12 place on hot mouth 10 to make the outer peripheral face protrusion setting of the relative hot mouth main part 11 of the outer peripheral edges of guide ring 13, like this when will hot mouth 10 inserts the mounting hole 31 of mould body 30, the outer peripheral edges of guide ring 13 and the inner wall contact of mounting hole 31, play better guide effect to the installation of hot mouth 10, can reduce the slope of the relative mounting hole 31 of hot mouth 10, make nozzle 12 be located the central point of mounting hole 31 all the time and put. The installation stability of the hot nozzle 10 is improved, the situation that the hot nozzle 10 shakes in the installation or production process is prevented, the hot nozzle 10 can be better protected, and even for a long hot nozzle 10, the risk that the nozzle 12 collides with the inner wall of the installation hole 31 in the assembling process of the hot nozzle 10 can be reduced, namely the risk that the nozzle 12 is damaged in the assembling process of the hot nozzle 10 is reduced.

In some embodiments, the guide ring 13 is annular, and the outer diameter of the guide ring 13 is larger than the outer diameter of the hot nozzle body 11. Thus, the wire loop has a simple structure, is convenient to form, and can reduce the manufacturing cost of the hot nozzle 10.

In some embodiments, the guide ring 13 is removably mounted to the hot nozzle body 11. Thus, even if the wire loop is deformed or damaged in the subsequent maintenance, only the guide ring 13 needs to be replaced, and the hot nozzle body 11, the nozzle 12, or the entire hot nozzle 10 does not need to be replaced, thereby facilitating the maintenance and reducing the maintenance cost. Of course, in other embodiments, the guide ring 13 may be welded to the hot nozzle main body 11 or the nozzle 12, or the guide ring 13 may be integrally formed with the hot nozzle main body 11, or the guide ring 13 may be integrally formed with the nozzle 12 (e.g., the nozzle cover 122).

In some embodiments, a guide ring 13 is mounted at the end face of the hot nozzle body 11. Thus, it is not necessary to provide a mounting structure on the peripheral surface of the hot nozzle main body 11, which is advantageous for reducing the radial dimension of the hot nozzle main body 11.

In some embodiments, the hot nozzle 10 further includes a stopper that is caught in the nozzle 12, and the guide ring 13 is restricted between the stopper and the end surface of the hot nozzle body 11. Specifically, the nozzle 12 (nozzle sleeve 122) is provided with a locking protrusion or a locking groove, and the limiting member is locked in the locking protrusion or the locking groove, so that the movement of the limiting member in a direction away from the hot nozzle main body 11 is at least limited, and therefore, when the guide ring 13 is installed between the limiting member and the end surface of the hot nozzle main body 11, the limiting of the guide ring 13 can be realized. In this way, it is not necessary to provide a mounting structure to the hot nozzle body 11, and the structure of the nozzle 12 is simplified, so that the manufacturing cost of the hot nozzle 10 can be reduced.

In some embodiments, the guide ring 13 is fastened to the hot nozzle body 11, for example, a fastener may be disposed on an end surface of the hot nozzle body 11, the guide ring 13 is fastened to the end surface of the hot nozzle body 11 by the fastener, or a notch or a fastener may be disposed on an outer circumferential surface of the hot nozzle body 11, and the guide ring 13 is sleeved on the hot nozzle body 11 and fastened to the notch or the fastener. In other embodiments, the guide ring 13 may be screwed to the end surface or the outer peripheral surface of the hot nozzle body 11.

In some embodiments, the hot nozzle body 11 includes a material pipe 112 and a heater 113 sleeved outside the material pipe 112, the material pipe 112 has a flow passage hole 111, the guide ring 13 is installed at an end surface of the heater 113, and an outer peripheral edge of the guide ring 13 is convexly disposed opposite to an outer peripheral surface of the heater 113. Specifically, the heater 113 includes a sleeve and a heat generating structure disposed in the sleeve, the sleeve is sleeved outside the material pipe 112, and the outer periphery of the guide ring 13 is disposed to protrude from the outer periphery of the sleeve. Of course, in other embodiments, the hot nozzle main body 11 includes the material pipe 112 and the heat generating structure embedded in the material pipe 112, in this case, the outer peripheral surface of the material pipe 112, i.e., the outer peripheral surface of the hot nozzle main body 11, and correspondingly, the outer peripheral edge of the guide ring 13 is disposed to protrude from the outer peripheral surface of the material pipe 112.

In some embodiments, the material of the guide ring 13 is stainless steel. So set up, when guaranteeing guide ring 13 structural strength, can prevent 32 regional temperatures in runner and hot mouth 10 too fast transmission, guarantee 32 temperature gathers in runner, and temperature control is accurate. Of course, the guide ring 13 may be made of other low thermal conductivity metals.

The utility model discloses still provide a hot runner system, this hot runner system includes hot runner plate 20 and hot mouth 10, and this hot mouth 10 specific structure refers to above-mentioned embodiment, because this hot runner system has adopted the whole technical scheme of above-mentioned all embodiments, consequently has all beneficial effects that the technical scheme of above-mentioned embodiment brought at least, and the repeated description is not repeated here one by one. The hot nozzle 10 is mounted on a hot runner plate 20. Alternatively, the number of the hot nozzle 10 is plural, and a plurality of the hot nozzles 10 are mounted to the hot runner plate 20 at intervals and are all communicated with the flow passages of the hot runner plate 20.

The utility model also provides an injection mold, this injection mold include hot runner system and mould body 30, and this hot runner system's concrete structure refers to above-mentioned embodiment, because this injection mold has adopted the whole technical scheme of above-mentioned all embodiments, consequently has all beneficial effects that the technical scheme of above-mentioned embodiment brought at least, and the repeated description is no longer given here. The mold body 30 is provided with a cavity, a mounting hole 31, and a gate 32 communicating the mounting hole 31 and the cavity, the hot nozzle 10 of the hot runner system is mounted in the mounting hole 31, and the discharge hole 121 of the hot nozzle 10 communicates with the cavity through the gate 32. Specifically, the mold body 30 includes a movable mold part and a stationary mold part forming a cavity therebetween, the stationary mold part being provided with a mounting hole 31 and a gate 32.

In some embodiments, the installation hole 31 includes a first hole section 311, a guide hole section 313 and a second hole section 312 connected in sequence, the first hole section 311 has a diameter larger than that of the second hole section 312, the guide hole section 313 is disposed in a direction reduced close to the second hole section 312, and the second hole section 312 is disposed close to the gate 32. Specifically, the inner diameter of the second bore section 312 is slightly larger than the outer diameter of the guide ring 13, so that the clearance between the inner wall of the second bore section 312 and the guide ring 13 is made smaller without affecting the installation. A seal bore section 314 is also provided between the gate 32 and the second bore section 312, the seal bore section 314 cooperating with the nozzle 12 to prevent plastic from flowing between the seal bore section 314 and the nozzle 12 toward the second bore section 312. Thus, during the process of inserting the hot nozzle 10 into the mounting hole 31, when the guide ring 13 passes through the first hole section 311, the gap between the guide ring 13 and the first hole section 311 is relatively large, which can facilitate the insertion of the hot nozzle 10 into the mounting hole 31, when the guide ring 13 passes through the guide hole section 313, the guide hole section 313 can better guide the guide ring 13 (hot nozzle 10) to the second hole section 312, and after the wire guide ring enters the second hole section 312, the gap between the guide ring 13 and the second hole section 312 is relatively small, which can better center the nozzle 12, and can further reduce the risk that the nozzle 12 impacts the mold body 30 (sealing hole section 314). Of course, in other embodiments, the inner diameters of the first bore section 311, the guide bore section 313 and the second bore section 312 may be made the same.

The above only is the preferred embodiment of the present invention, not so limiting the patent scope of the present invention, all under the inventive concept of the present invention, the equivalent structure transformation made by the contents of the specification and the drawings is utilized, or the direct/indirect application in other related technical fields is included in the patent protection scope of the present invention.

Claims

1. A hot nozzle, comprising:

a hot nozzle body having a flow passage hole;

the guide ring is installed on the hot nozzle main body, the guide ring and the nozzle are located at the same end of the hot nozzle main body, and the outer periphery of the guide ring is arranged in a protruding mode relative to the outer peripheral face of the hot nozzle main body.

2. The thermal nozzle of claim 1, wherein said guide ring is annular and has an outer diameter greater than an outer diameter of said thermal nozzle body.

3. The hot nozzle as claimed in claim 1, wherein said guide ring is detachably mounted to said hot nozzle body.

4. The hot nozzle as claimed in claim 3, wherein said guide ring is snap-fitted to said hot nozzle body; or, the hot nozzle further comprises a limiting piece clamped on the nozzle, and the guide ring is limited between the limiting piece and the end face of the hot nozzle main body.

5. The nozzle as claimed in claim 1, wherein the nozzle body includes a material tube and a heater sleeved outside the material tube, the material tube has the flow passage hole, the guide ring is installed at an end surface of the heater, and an outer circumferential edge of the guide ring is protruded with respect to an outer circumferential surface of the heater.

6. The nozzle of claim 1, wherein the guide ring is mounted at an end face of the nozzle body.

7. A nozzle according to any one of claims 1 to 6, wherein the guide ring is made of stainless steel.

8. A hot-runner system, comprising a hot runner plate and a hot nozzle as claimed in any one of claims 1 to 7, the hot nozzle being mounted to the hot runner plate.

9. An injection mold comprising a mold body and the hot runner system according to claim 8, wherein the mold body is provided with a cavity, a mounting hole and a gate communicating the mounting hole and the cavity, a hot nozzle of the hot runner system is mounted in the mounting hole, and a discharge hole of the hot nozzle communicates with the cavity through the gate.

10. The injection mold of claim 9, wherein the mounting bore includes a first bore section, a pilot bore section, and a second bore section connected in series, the first bore section having a diameter greater than a diameter of the second bore section, the pilot bore section tapered in a direction toward the second bore section, the second bore section disposed proximate the gate.