CN217346426U

CN217346426U - Quick-change nozzle device with hidden heating ring

Info

Publication number: CN217346426U
Application number: CN202220707933.4U
Authority: CN
Inventors: 王书萍; 刘平定; 李尔良; 孙晓波; 吴小廷; 袁中华; 杜呈表
Original assignee: Borch Machinery Co Ltd
Current assignee: Borch Machinery Co Ltd
Priority date: 2022-03-28
Filing date: 2022-03-28
Publication date: 2022-09-02
Anticipated expiration: 2032-03-28

Abstract

The utility model discloses a quick-change nozzle device with a hidden heating ring, which comprises a nozzle head and a nozzle body sleeved on the inner side of the nozzle head, wherein the nozzle head is provided with a heating slot hole, and a heating device is arranged in the heating slot hole; the heating device is connected with a pressing plate in a propping manner at one side far away from the nozzle head, and the other side of the pressing plate is connected with the nozzle body in a propping manner; the heating slot hole is positioned on the side surface of the wall body of the nozzle head; the heating device comprises a plurality of heating rods which are independently arranged, and the plurality of heating rods are arranged along the axis of the nozzle head in a surrounding way; the utility model discloses in the middle of, through setting up heating device in the lateral wall of nozzle head, not only simple structure is convenient for install and is dismantled, can also the increasing the heat efficiency, can avoid heating device to deepen stopping of mould process to penetrating the mouth especially, lets penetrate in the middle of the more smooth and easy deep mould that penetrates the mouth can be better.

Description

Quick-change nozzle device with hidden heating ring

Technical Field

The utility model relates to an injection molding machine field, concretely relates to mouth device is penetrated to quick change that possesses hidden heating coil.

Background

Plastic injection molding is a method of producing plastic products by injecting molten plastic into a plastic product mold under pressure, and cooling and molding the plastic product to obtain various plastic parts. Injection molding is accomplished by an injection molding machine and a mold, and an injection nozzle is an important part for melting and injecting plastic into the mold.

Present heating ring of penetrating the mouth is mostly all installed on penetrating the mouth external diameter, and to some moulds, in order to shorten gluey mouthful distance, avoid injection moulding product shrink or injection moulding product glue mouthful near splash phenomenon scheduling problem to appear, the main mouth of advancing of the product die cavity of mould needs dwindle as far as possible, and is relative with this, then need will penetrate in the middle of the mouth deepening mould as far as possible, under this kind of condition, traditional setting is just unable this demand of satisfying at the heating ring that penetrates on the mouth external diameter.

Therefore, there is a need for a quick-change nozzle device with a hidden heating ring to solve the above-mentioned problems.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an it is not enough to overcome above-mentioned condition, aims at providing the technical scheme that can solve above-mentioned problem.

A quick-change nozzle device with a hidden heating ring comprises a nozzle head and a nozzle body sleeved on the inner side of the nozzle head, wherein a heating slot hole is formed in the nozzle head, and a heating device is arranged in the heating slot hole; the heating device is connected with a pressing plate in a butting mode on one side far away from the nozzle head, and the other side of the pressing plate is connected with the nozzle body in a butting mode.

Preferably, the heating slot is positioned on the side of the wall body of the nozzle head; the heating device comprises a plurality of independently arranged heating rods, and the heating rods are arranged around the axis of the nozzle head.

Preferably, the heating rod is connected with a signal cable, the pressing plate is provided with a notch at a position corresponding to the heating rod, and the signal cable is led out through the notch.

Preferably, the heating slot includes a plurality of independent circular holes corresponding to the heating rod, and the gap and the signal cable are both provided in a plurality corresponding to the heating rod.

Preferably, the pressure plate is fixedly connected with the nozzle head through a connecting screw and compresses the heating device in the heating slot hole.

Preferably, a fastening hole is formed in the nozzle head, a fastening screw is mounted in the fastening hole, and the fastening screw is used for fastening the nozzle body in the nozzle head.

Preferably, an inner hole spherical surface is arranged at the inner bottom of the nozzle head, and a head spherical surface is arranged at the end part of the nozzle body corresponding to the inner hole spherical surface.

Preferably, the contact ratio of the inner hole spherical surface to the head spherical surface is greater than eighty percent.

Preferably, the nozzle body and the nozzle head are in clearance fit.

Preferably, a thermocouple is arranged on the nozzle body and used for detecting the temperature of the nozzle body.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses in the middle of the quick change that possesses hidden heating ring penetrates mouth device, the device that generates heat is a plurality of heating rods that set up in the nozzle head, compare in the tradition setting heating ring on penetrating the mouth external diameter, the design of the device that generates heat among this technical scheme is more succinct reasonable, space utilization is higher, the main demand that advances the jiao kou little and penetrate the mouth and need go deep into the mould of adaptation mould product die cavity that can be better, the device that generates heat can not be to penetrating the mouth and go deep into the mould and produce and block, when improving the heating effect of the device that generates heat, the processing degree of difficulty and cost have still been reduced, the convenience of penetrating the installation and dismantlement of mouth device has been improved.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

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

Fig. 1 is a schematic diagram of the explosion structure of the present invention.

Fig. 2 is a schematic diagram of the internal structure of the present invention.

Fig. 3 is a schematic view of the internal structure of the present invention at another angle.

In the figure: 1. a nozzle head; 11. heating the slot; 12. a heating device; 121. a heating rod; 122. a signal cable; 13. pressing a plate; 131. a notch; 132. a connecting screw; 14. a fastening hole; 141. fastening screws; 15. an inner hole spherical surface;

2. a nozzle body; 21. a spherical surface of the head; 22. and a thermocouple.

Detailed Description

The technical solutions in the embodiments of the present invention will be described below clearly and completely, and it should be apparent that the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Furthermore, in the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and the like are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the two elements may be directly connected or indirectly connected through an intermediate medium, or may be communicated with each other inside the two elements, or may be wirelessly connected or wired connected. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

Referring to fig. 1-3, in an embodiment of the present invention, a quick-change nozzle device with a hidden heating ring includes a nozzle head 1 and a nozzle body 2 sleeved inside the nozzle head 1, wherein the nozzle head 1 is provided with a heating slot 11, and a heating device 12 is disposed in the heating slot 11; the heating device 12 is abutted with a pressing plate 13 on one side far away from the nozzle head 1, and the other side of the pressing plate 13 is abutted with the nozzle body 2.

It should be noted that, the sidewall of the wall body of the nozzle head 1 is provided with the heating slot 11, when in installation, the heating device 12 is inserted into the heating slot 11, and the pressing plate 13 is used for compressing and fixing the heating device 12, thereby preventing the heating device 12 from coming out of the heating slot 11, that is, the heating device 12 is arranged in the wall body of the nozzle head 1 to continuously keep warm and heat the nozzle head 1 and the nozzle body 2, and keep the melting state of the material, compared with the traditional heating ring arranged on the outer diameter of the nozzle, the technical scheme has the advantages of better heat conduction effect, higher heat efficiency, and capability of more rapidly transferring heat to the melting material in the nozzle body 2, and on the other hand, the heating rod 121 is arranged in the sidewall of the nozzle body 2, so that the space can be more reasonably utilized, and the smoothness and no protrusion of the outer surface of the nozzle head 1 can be kept, the influence of the heating device 12 on blocking the injection nozzle from entering the mold is avoided.

The heating slot 11 is positioned on the side surface of the wall body of the nozzle head 1; the heating device 12 includes a plurality of independently disposed heating rods 121, and the plurality of heating rods 121 are circumferentially disposed along the axis of the nozzle tip 1.

It should be noted that a plurality of independent heating rods 121 are arranged around the nozzle head 1, so that the material cost can be reduced while the heating effect is ensured, the heat loss and waste are avoided, the heat efficiency of the heating device 12 is improved, the installation and the disassembly of the heating device 12 are facilitated, and the replacement efficiency of the heating device 12 is improved

It should also be noted that in other embodiments, the heating device 12 may be a circular or arc-shaped heating plate, wherein the circular heating plate can maximize the heating effect.

The heating rod 121 is connected with a signal cable 122, the pressing plate 13 is provided with a notch 131 at a position corresponding to the heating rod 121, and the signal cable 122 is led out through the notch 131.

It should be noted that the notch 131 provided on the pressing plate 13 can provide a relief for the signal cable 122, so as to facilitate the leading-out of the signal cable 122, and avoid the signal cable 122 from being damaged or even broken due to the pressing of the pressing plate 13 on the signal cable 122.

The heating slot 11 includes a plurality of independent circular holes corresponding to the heating rod 121, and the notch 131 and the signal cable 122 are both provided in a plurality corresponding to the heating rod 121.

It should be noted that the heating rod 121 can be separated by the independently disposed circular holes, so as to avoid the heating rod 121 from being damaged due to contact, and to prolong the service life of the heating rod 121. In other embodiments, the heating slot 11 may be an integral annular slot or separate arcuate slots for the annular or arcuate heating means 12 to fit into an arcuate or annular heating plate.

The pressure plate 13 is fixedly connected to the nozzle head 1 by means of a connecting screw 132 and presses the heating device 12 into the heating slot 11. The connecting screw 132 can fasten the pressing plate 13 and the nozzle head 1, so that the heating device 12 is tightly pressed in the heating slot 11, and the heating device 12 is prevented from being separated from the heating slot 11 during high-intensity work.

The nozzle head 1 is provided with a fastening hole 14, a fastening screw 141 is mounted in the fastening hole 14, and the fastening screw 141 is used for fastening the nozzle body 2 in the nozzle head 1.

The inner bottom of the nozzle head 1 is provided with an inner hole spherical surface 15, and the end part of the nozzle body 2 is provided with a head spherical surface 21 corresponding to the inner hole spherical surface 15.

The contact ratio of the inner hole spherical surface 15 and the head spherical surface 21 is more than eighty percent.

The nozzle body 2 is in clearance fit with the nozzle head 1.

It should be noted that, the matching of the inner hole spherical surface 15 and the head spherical surface 21 has a large contact area and is more closely contacted compared with the traditional scheme, and meanwhile, the clearance fit between the nozzle body 2 and the nozzle head 1 is convenient for the installation and the disassembly of the nozzle head 1, so that the replacement efficiency of the mold is improved; in the installation process, the contact proportion of the inner hole spherical surface 15 and the head spherical surface 21 needs to be determined to ensure that the contact proportion of the inner hole spherical surface 15 and the head spherical surface 21 is more than eighty percent, so that the use requirement can be met without generating the problem of glue leakage, and in the actual installation and use process, the contact proportion of the inner hole spherical surface 15 and the head spherical surface 21 is generally detected and determined by uniformly smearing red powder on the head spherical surface.

The nozzle body 2 is provided with a thermocouple 22, and the thermocouple 22 is used for detecting the temperature of the nozzle body 2. The thermocouple 22 can detect the temperature of the nozzle body 2, so that the temperature of the molten rubber is always at a set temperature, and the molten rubber can smoothly enter the mold.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims

1. A quick-change nozzle device with a hidden heating ring comprises a nozzle head and a nozzle body sleeved on the inner side of the nozzle head, and is characterized in that a heating slot hole is formed in the nozzle head, and a heating device is arranged in the heating slot hole; the heating device is connected with a pressing plate in a butting mode on one side far away from the nozzle head, and the other side of the pressing plate is connected with the nozzle body in a butting mode.

2. The quick-change nozzle device with the concealed heating ring as claimed in claim 1, wherein the heating slot is located on the side of the wall body of the nozzle head; the heating device comprises a plurality of independently arranged heating rods, and the heating rods are arranged along the axis of the nozzle head in a surrounding mode.

3. The quick-change nozzle device with the concealed heating coil as claimed in claim 2, wherein a signal cable is connected to the heating rod, and the pressing plate has a notch at a position corresponding to the heating rod, through which the signal cable is led out.

4. The quick-change nozzle device with a concealed heating ring according to claim 3, wherein the heating slot comprises a plurality of independent circular holes corresponding to the heating rod, and the notch and the signal cable are provided in a plurality corresponding to the heating rod.

5. The quick-change nozzle device with the concealed heat-generating ring as claimed in claim 1, wherein the pressing plate is fixedly connected with the nozzle head by a connecting screw and presses the heating device into the heating slot.

6. The quick-change nozzle device with the concealed heating ring according to claim 1, wherein the nozzle head is provided with a fastening hole, and a fastening screw for fastening the nozzle body in the nozzle head is mounted in the fastening hole.

7. The quick-change nozzle device with the concealed heating ring as claimed in claim 6, wherein the inner bottom of the nozzle head is provided with an inner hole spherical surface, and the end of the nozzle body is provided with a head spherical surface corresponding to the inner hole spherical surface.

8. The quick-change nozzle device with the concealed heating ring as claimed in claim 7, wherein the contact ratio of the spherical surface of the inner hole to the spherical surface of the head is greater than eighty percent.

9. The quick-change nozzle device with the concealed heat-generating ring as claimed in claim 8, wherein the nozzle body and the nozzle head are in clearance fit.

10. The quick-change nozzle device with the hidden heating ring as claimed in claim 1, wherein a thermocouple is disposed on the nozzle body and is used for detecting the temperature of the nozzle body.