CN208133570U - Extrusion hot runner system - Google Patents

Abstract

Extrude hot runner system, the utility model relates to a hot runner processing technology field especially indicates one kind in the extrusion process technology process, is assisted with the hot runner system of extruding of hot runner. The method is realized by the following technical scheme: the extrusion hot runner system consists of an extruder, a machine head neck mold, a shaping device, a cooling water tank, a traction device and a cutting device, wherein the extruder, the machine head neck mold, the shaping device, the cooling water tank, the traction device and the cutting device are sequentially connected, and the shaping device is provided with the hot runner system. The utility model discloses broken through traditional extrusion die characteristics, utilized hot runner system and extrusion die mould's combination, the plastic has been solved in extrusion die the inside clod and solid phenomenon to this structure, has kept the plastic temperature suitable even, has guaranteed product quality's excellence.

Description

Extrusion hot runner system

technical field

The utility model relates to the technical field of hot runner processing, in particular to an extrusion hot runner system supplemented with hot runners during the extrusion process.

Background technique

The hot runner processing technology is to heat the processed plastic particles through the injection molding machine to ensure that the plastic in the runner and gate remains in a molten state for injection molding. However, during the extrusion process, there is an extrusion die at the front end of the extruder, and the extruder extrudes pipes, profiles, etc. through the extrusion die, which has been widely used in aluminum materials, and in plastic pipe processing There are also a large number of applications. It mainly realizes the processing of the shape of the article through the change of the physical state of the formed material. However, in the process of extrusion processing, it is often encountered that due to the difference in thermal conductivity of the processed materials, the molding material will harden early at the outlet end of the extrusion die, which will cause difficulty in extruding the extruder and reduce the quality of the molded product. Instability and other problems exist. The reason is that the temperature of the material to be processed in the extrusion die has dropped, so that the molding material near the exit of the extrusion die has begun to harden, and the extrusion speed has decreased, which makes it difficult for the subsequent molding materials to pass normally, resulting in extrusion. Molding material builds up near the exit from the mold.

Contents of the invention

The purpose of the utility model is to overcome the disadvantages of the above-mentioned prior art, and provide an extrusion hot runner system supplemented by a hot runner during the extrusion process.

The utility model is realized through the following technical scheme: the extrusion hot runner system is composed of an extruder, a nose die, a shaping device, a cooling water tank, a traction device and a cutting device. The mold, the setting device, the cooling water tank, the traction device and the cutting device are connected in sequence, and the setting device is provided with a hot runner system.

The sizing device is composed of an extrusion mold cavity and an extrusion mold core. The extrusion mold core is placed in the extrusion mold cavity, and a channel B for product A molding is left between the extrusion mold cavity and the extrusion mold core. ; The hot runner system is composed of a temperature controller, a heating bar and a heating rod, the heating bars are evenly distributed around the extrusion model cavity, the heating rod surrounds the extrusion model core and is arranged on the extrusion model cavity, the heating bar and the heating rod Electrically connected with the thermostat.

The utility model breaks through the traditional extrusion model point, and utilizes the combination of the hot runner system and the extrusion die. This structure solves the phenomenon that the plastic is frozen in the extrusion die, keeps the temperature of the plastic suitable and uniform, and ensures the product quality. of high quality.

Description of drawings:

Accompanying drawing 1 is the utility model production flowchart;

Accompanying drawing 2 is the structural representation of the utility model.

Detailed ways:

See accompanying drawings 1-2, the extrusion hot runner system is composed of an extruder 1, a head die 11, a shaping device 2, a cooling water tank 3, a traction device 4 and a cutting device 6. The extruder 1, The nose die 11, the sizing device 2, the cooling water tank 3, the traction device 4 and the cutting device 5 are sequentially connected, and the sizing device 2 is provided with a hot runner system 20.

Described sizing device 2 is made of extruding mold chamber 21 and extruding mold core 22, extruding mold core 22 is placed in extruding mold chamber 21, and stays between extruding mold chamber 21 and extruding mold core 22 Channel B formed by product A; the hot runner system 20 is composed of a temperature controller 201, a heating bar 202 and a heating rod 203, the heating bar 202 is evenly distributed around the extrusion mold cavity 21, and the heating rod 203 surrounds the extrusion mold core 22 is arranged on the extrusion mold cavity 21, and the heating bar 202 and the heating bar 203 are electrically connected with the temperature controller 201.

When the utility model is applied, the extruder 1 extrudes the molten plastic in the extruder 1 into the channel B between the mold cavity 21 of the shaping device 2 and the extrusion mold core 22 through the die 11 at the front end of the extruder. Inside, since the heating rod 203 is installed around the extrusion mold core 22, the inner plastic of the extrusion mold is heated by the heating rod 203 and kept in a molten state when extruding, so as to prevent the solidification of the plastic during extrusion. A heating bar 202 is installed on the extrusion mold cavity 202 for constant temperature outside the mold, which can keep the plastic in the mold in a molten state, and finally form the product A through the cooling water tank 3, the traction device 4 and the cutting device 6.

Claims (2)

1. Extrusion hot runner system consists of extruder, nose die, shaping device, cooling water tank, traction device and cutting device. The extruder, nose die, shaping device, cooling water tank, traction device The device and the cutting device are connected in sequence, and it is characterized in that a hot runner system is arranged on the shaping device. 2. The extrusion hot runner system according to claim 1, characterized in that: said sizing device is composed of an extrusion mold cavity and an extrusion mold core, and the extrusion mold core is placed in the extrusion mold cavity, and Between the extrusion mold cavity and the extrusion mold core, a channel B for product A molding is reserved; the hot runner system is composed of a temperature controller, a heating bar and a heating rod, and the heating strips are evenly distributed around the extrusion mold cavity, heating The rod surrounds the extrusion mold core and is arranged on the extrusion mold cavity, and the heating bar and the heating rod are electrically connected with the temperature controller.