CN202878595U - square hot nozzle - Google Patents

Abstract

The utility model provides a square little hot mouth of copper outer tube is inlayed to hot mouth heater, including hot mouth body, install the heating tube at hot mouth body side, the square outer tube of cover outside hot mouth body and heating tube. The heating tube is cylindrical; the side of the hot nozzle body is provided with an arc surface which is tightly combined with the heating tube. A through hole for installing a heating tube is arranged in the body seat at the tail part of the hot nozzle body; the end face of the body seat is provided with a groove for accommodating a lead post of the heating tube. The cross section of the square outer tube is in the shape of a ring with a square middle and round sides. The square outer tube of copper will heat the mouth body and the heating tube closely wraps up, and the heating tube can give the heat transfer for the hot mouth body uniformly, has guaranteed temperature balance and stability in the hot mouth runner.

Description

square hot nozzle

technical field

The utility model belongs to the technical field of moulds, in particular to hot runner mold technology, in particular to a hot nozzle of an injection mold. the

Background technique

At present, most of the prior art small-pitch square hot nozzles of plastic hot runner molds are embedded with a heat pipe in the hot nozzle. When some special materials are used, the temperature balance and stability of the hot nozzle cannot be guaranteed. Due to the uneven temperature during the product molding process, it is easy to cause glue blocking and unbalanced glue flow. the

Utility model content

The technical problem to be solved by the utility model is to provide a hot nozzle structure in which a hot nozzle heater is embedded in a copper outer tube in view of the above-mentioned shortcomings in the existing hot runner system. the

The technical solution proposed by the utility model for the above problems is: a small square hot nozzle, including a hot nozzle body, and a heating tube installed on the side of the hot nozzle body; the small square hot nozzle also includes a square outer tube; the square outer tube Cover the nozzle body and the heat pipe. the

Wherein, the heating pipe is cylindrical; the side of the nozzle body is provided with an arc surface closely combined with the heating pipe. the

Wherein, the body seat at the tail of the hot nozzle body is provided with a through hole for installing the heat pipe; the end surface of the body seat is provided with a groove for accommodating the lead post of the heat pipe. the

Wherein, the head of the nozzle body is provided with a nozzle tip; the nozzle tip is installed on the nozzle body through a nozzle cover. the

Wherein, the cross-section of the square outer tube is an annular shape with circles on both sides of the middle side. the

Wherein, the pipe wall of the square outer pipe is provided with fastening screw holes. the

Further, the square outer tube is a copper outer tube. the

Compared with the small hot nozzle in the prior art, the advantages of adopting the technical scheme of the utility model that the square outer tube tightly wraps the hot nozzle body and the heating pipe are as follows. the

1. The heating tube can evenly transfer heat to the nozzle body, ensuring the temperature balance and stability in the nozzle flow channel. the

2. Reduce the heat loss of the nozzle body and heating pipe during the working process. the

Description of drawings

Below is a brief description of the content expressed in the drawings of this specification and the marks in the drawings. the

Fig. 1 is a perspective view of an embodiment of a small square hot nozzle of the present invention. the

Fig. 2 is a perspective view of the hot nozzle body of the embodiment of the square small hot nozzle of the present invention. the

Fig. 3 is a three-dimensional view of the heating tube of the embodiment of the small square hot nozzle of the present invention. the

Fig. 4 is a perspective view of the square outer tube of the embodiment of the square small hot nozzle of the present invention. the

Fig. 5 is a front view of an embodiment of a small square hot nozzle of the present invention. the

The figure includes: hot nozzle body 1, body seat 11, through hole 12, groove 13; heating tube 2, lead post 21; square outer tube 3, fastening screw hole 31; the

Detailed ways

In order to further illustrate the principle and structure of the utility model, the preferred embodiments of the utility model will be described in detail in conjunction with the accompanying drawings. the

Fig. 1 is a perspective view of an embodiment of a small square hot nozzle of the present invention; Fig. 2 is a perspective view of a nozzle body of this embodiment; Fig. 3 is a perspective view of a heat pipe of this embodiment; Fig. 4 is a perspective view of this embodiment perspective view of the square outer tube. Fig. 5 is a front view of an embodiment of a small square hot nozzle of the present invention, in which the square outer tube is cut. the

The utility model has a small square hot nozzle, which comprises a hot nozzle body 1, a heating tube 2, a square outer tube 3 and other parts. The outer periphery of the hot nozzle body 1 is covered with a copper square outer tube 3, which tightly wraps the hot nozzle body 1 and the heating pipe 2, which reduces the heat loss of the hot nozzle body 1 and the heating pipe 2 during the working process, and ensures the heat dissipation of the heating pipe. 2. The heat can be evenly transferred to the hot nozzle body 1 during heating, which makes up for the common defect of poor temperature balance of the square hot nozzle with small dot pitch in the prior art. the

The square outer tube 3 is set on the hot nozzle body 1, so that the heating pipe 2 is in close contact with the hot nozzle body 1 and at the same time tightly wraps the hot nozzle body 1 and the heating pipe 2, using the excellent thermal conductivity of copper material to reduce heat loss; During the heating process, the heating tube 2 transfers heat evenly to the hot nozzle body 1 through the copper square outer tube 3 to ensure the temperature balance and stability in the flow channel of the hot nozzle, so as to better meet the molding requirements of injection molding products. the

As shown in the figure, the embodiment of the small square hot nozzle includes a hot nozzle body 1 , a heating tube 2 installed on the side of the hot nozzle body 1 , and a square outer tube 3 covering the hot nozzle body 1 and the heating tube 2 . the

Referring to FIG. 3 , the heat pipe 2 is cylindrical; the side of the nozzle body 1 is provided with an arc surface tightly combined with the heat pipe 2 . The tail of the heat pipe 2 is provided with a lead post 21 , and the lead post 21 is 90 degrees to the main body of the heat pipe 2 . the

As shown in FIG. 2 , the body seat 11 at the tail of the nozzle body 1 is provided with a through hole 12 for installing the heat pipe 2 ; the end surface of the body seat 11 is provided with a groove 13 for accommodating the lead post 21 of the heat pipe. the

As shown in FIG. 5 , the head of the nozzle body 1 is provided with a nozzle tip 4 ; the nozzle tip 4 is installed on the nozzle body 1 through a nozzle cover 41 . the

Referring to Fig. 4 and Fig. 5, the cross section of the square outer tube 3 is an annular shape with circles on both sides of the middle side. The tube wall of the square outer tube 3 is provided with fastening screw holes 31, and the square outer tube 3 and the hot nozzle body 1 can be locked with screws. The square outer tube 3 is a copper outer tube. the

The above content is only a preferred embodiment of the utility model, and is not intended to limit the implementation of the utility model. Those skilled in the art can easily make corresponding modifications or modifications according to the main idea and spirit of the utility model , so the protection scope of the present utility model should be based on the protection scope required by the claims. the

Claims (1)

1. square little hot mouth comprises hot mouth body, is installed in the heat-generating pipe of hot mouth body side; It is characterized in that: this square little hot mouth also comprises square outer tube; Described square outer tube sleeve overlays on outside hot mouth body and the heat-generating pipe.

2. according to square little hot mouth claimed in claim 1, it is characterized in that: described heat-generating pipe is cylindrical; The side of described hot mouth body is provided with the arc surface of combining closely with heat-generating pipe.

3. according to square little hot mouth claimed in claim 2, it is characterized in that: be provided with the through hole that heat-generating pipe is installed in the noumenal seat of described hot mouth body afterbody; The end face of noumenal seat is provided with the groove of the stem that holds heat-generating pipe.

4. according to square little hot mouth claimed in claim 2, it is characterized in that: the head of described hot mouth body is provided with hot mouth; Described hot mouth is installed on the hot mouth body by the mouth cover.

5. according to square little hot mouth claimed in claim 2, it is characterized in that: the cross section of described square outer tube is the annular of third side both sides circle.

6. according to square little hot mouth claimed in claim 5, it is characterized in that: be provided with fastening screw on the tube wall of described square outer tube.

7. according to the described square little hot mouth of claim 1 to 6, it is characterized in that: described square outer tube is copper outer tube.

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