CN218429864U - Hot runner extrusion molding mechanism of mould - Google Patents

Abstract

The utility model relates to the technical field of extrusion mechanism, and discloses a hot runner extrusion mechanism of a mold, which solves the problems of the existing hot runner extrusion mechanism that the internal particle material is transported backward when it is not fully melted and follows the molten state. The problem of extruding materials together includes the extrusion cylinder, the top end of the extrusion cylinder is fixedly equipped with a feed inlet, one end of the extrusion cylinder is fixedly equipped with an extrusion port, and the other end of the extrusion cylinder is fixedly equipped with a drive motor. A shaft body is arranged inside the cylinder, one end of the shaft body is fixedly provided with a spiral extruding blade 1, the other end of the shaft body is fixedly provided with a spiral extrusion blade 2, and the middle position of the shaft body is sleeved with a central extruding plate; through the The hot runner extrusion mechanism can extrude the material with a small diameter after the material is hot-melted for the first time, ensuring that the molten material passes through, and the unmelted material is blocked, ensuring that the extruded material is in a molten state, and avoiding product failure. Qualified situation, and then improve product quality.

Description

A hot runner extrusion mechanism for a mold

technical field

The utility model belongs to the technical field of extrusion mechanisms, in particular to a hot runner extrusion mechanism of a mould.

Background technique

The extrusion mechanism is usually used for the processing of plastic products. In the production process of the existing extruder, there is a problem that the internal granular material is not fully melted, it is transported backwards and extruded together with the molten material, and it is not completely melted. The granular material will seriously affect the quality of the product after extrusion, resulting in quality defects inside the final extruded product.

Utility model content

In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a hot runner extrusion mechanism of the mold, which effectively solves the problem that the existing hot runner extrusion mechanism has internal particle materials that are not fully melted and are transported backwards. And the problem of extruding with the material in the molten state.

In order to achieve the above purpose, the utility model provides the following technical solutions: a hot runner extrusion mechanism for a mold, including an extrusion cylinder, one end of the top of the extrusion cylinder is fixedly provided with a feed port, and one end of the extrusion cylinder is fixedly arranged There is an extrusion port, the other end of the extrusion cylinder is fixedly equipped with a drive motor, the inside of the extrusion cylinder is provided with a shaft body connected to the output shaft of the drive motor, one end of the shaft body is fixedly equipped with a spiral extrusion blade 1, and the other end of the shaft body One end is fixedly provided with the second spiral extruding blade, and the middle position of the shaft body is sleeved with a central extruding plate located between the first spiral extruding blade and the second spiral extruding blade.

Preferably, the central extrusion plate is composed of a first plate body, a second plate body and an electric heating plate, the electric heating plate is fixedly connected between the first plate body and the second plate body, the first plate body and the second plate body The boards are made of metal.

Preferably, the first plate is provided with a plurality of extrusion holes 1, and the second plate is provided with a plurality of extrusion holes 2 matching the extrusion holes 1, and the diameters of the extrusion holes 1 and 2 are the same .

Preferably, the central extruded plate and the shaft are connected through bearings, and the outer side of the central extruded plate is welded to the inner wall of the extruded cylinder.

Preferably, an electric heating jacket 1 is provided on the inner side wall of the extruding barrel close to one end of the spiral extruding blade 1, and an electric heating jacket 2 is arranged on the inner side wall of the extrusion barrel near one end of the spiral extruding blade 2.

Preferably, the inner walls of the extruding barrel, the first electric heating jacket and the second electric heating jacket are provided with several spiral ribs one.

Preferably, the spiral extrusion blade 1 and the spiral extrusion blade 2 are both provided with several spiral ribs 2 .

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

(1) During work, by setting the central extruding plate composed of the first plate body, the second plate body and the electric heating plate, the hot-melted material can be extruded, and the unmelted granular material is isolated to ensure The extruded material is in a molten state, thereby improving product quality, and the granular material can be melted twice through the electric heating plate to avoid blockage of the first plate and the second plate;

(2) The movement between the shaft body and the central extrusion plate can be improved by installing a bearing to avoid friction. The first spiral rib and the second spiral rib can help the material to roll inside the extrusion cylinder, improving The uniformity of material heating.

Description of drawings

The accompanying drawings are used to provide a further understanding of the utility model, and constitute a part of the description, and are used to explain the utility model together with the embodiments of the utility model, and do not constitute a limitation to the utility model.

In the attached picture:

Fig. 1 is one of structural representations of the hot runner extrusion mechanism of the mold of the present invention;

Fig. 2 is the second structural diagram of the hot runner extrusion mechanism of the mold of the present invention;

Fig. 3 is a structural schematic diagram of the extrusion barrel of the present invention;

Fig. 4 is a structural schematic diagram of the central extruded plate of the present invention;

In the figure: 1. Extrusion barrel; 2. Feed port; 3. Extrusion port; 4. Driving motor; 5. Shaft body; 6. Spiral extrusion blade 1; 7. Spiral extrusion blade 2; 9. First plate body; 10. Second plate body; 11. Electric heating plate; 12. Extrusion hole one; 13. Extrusion hole two; 14. Bearing; 15. Electric heating jacket one; 16. Electric heating cover two; 17, spiral rib one; 18, spiral rib two.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Example: Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present utility model.

As shown in Figure 1 and Figure 2, a hot runner extrusion mechanism of a mold of the present invention includes an extrusion cylinder 1, one end of the top of the extrusion cylinder 1 is fixedly provided with a feed port 2, and one end of the extrusion cylinder 1 is fixedly arranged There is an extrusion port 3, the other end of the extrusion cylinder 1 is fixedly provided with a drive motor 4, the inside of the extrusion cylinder 1 is provided with a shaft body 5 connected to the output shaft of the drive motor 4, and one end of the shaft body 5 is fixedly provided with a screw extruder Blade 1 6, the other end of the shaft body 5 is fixedly provided with a spiral extrusion blade 2 7, and the middle position of the shaft body 5 is provided with a central extrusion plate between the spiral extrusion blade 1 6 and the spiral extrusion blade 2 7 8;

As shown in Figures 1 to 4, the central extrusion plate 8 is composed of a first plate body 9, a second plate body 10 and an electric heating plate 11, and the electric heating plate 11 is fixedly connected to the first plate body 9 and the second plate body 10, the first plate body 9 and the second plate body 10 can be heated to avoid the blockage of the first plate body 9 and the second plate body 10, the first plate body 9 and the second plate body 10 are all metal The material can improve thermal conductivity. The first plate body 9 is provided with a number of extrusion holes 12, and the second plate body 10 is provided with a number of extrusion holes 13 matching the extrusion holes 12. The extrusion hole 1 12 has the same diameter as the extrusion hole 2 13, and can extrude materials. The center extrusion plate 8 and the shaft body 5 are connected through the bearing 14, which can improve the mobility of the joint. The outer surface of the center extrusion plate 8 The side and the inner side wall of the extrusion barrel 1 are welded and connected, which can improve the overall strength of the central extrusion plate 8. The inner side wall of the extrusion barrel 1 near the end of the spiral extrusion blade 6 is provided with an electric heating jacket 15, The inner side wall of the extruding cylinder 1 close to the end of the spiral extruding blade 2 7 is provided with an electric heating jacket 2 16, which can realize heating and improve the heating effect. The walls are provided with a number of spiral ribs 17, and the spiral extrusion blade 1 6 and the spiral extrusion blade 2 7 are provided with a number of spiral ribs 2 18, which can assist the material to roll and improve the uniformity of heating;

The granular material enters the inside of the extrusion barrel 1 from the feed port 2, and the electric heating jacket 15 and the electric heating jacket 2 16 are energized to heat the material, and the driving motor 4 drives the shaft body 5 to rotate, thereby driving the screw extruder The first blade 6 and the screw extrusion blade 2 7 rotate to realize the extrusion of the material. During the extrusion process, the material first passes through the central extrusion plate 8, and the material in the molten state passes through the extrusion hole 12 and the extrusion hole 13 Extrude, the unmelted material is isolated by the center extruding plate 8, thereby can effectively prevent the unmelted granular material from being extruded from the extrusion port 3 and affect the product quality, and the first plate body 9 and the second plate body can be controlled by the electric heating plate 11 The second plate body 10 is heated, and then through the first plate body 9 and the second plate body 10, the secondary thermal melting of the material can be realized, so as to prevent the granular material from entering the extrusion hole one 12 and the extrusion hole two 13 to cause blockage, Finally, the material in the molten state can be extruded from the extrusion port 3.

In work, by setting the central extruding plate composed of the first plate body, the second plate body and the electric heating plate, the hot-melt material can be extruded, and the unmelted granular material is isolated to ensure that the extruded material It is in a molten state, thereby improving product quality. The granular material can be melted twice through the electric heating plate to avoid blockage of the first plate and the second plate; the shaft and the center extrusion can be improved by setting the bearing The degree of activity between the plates avoids friction, and the provision of the first spiral rib and the second spiral rib can help the material to roll inside the extrusion cylinder and improve the uniformity of heating of the material.

Claims (7)

1. A hot runner extrusion mechanism of a mould, comprising an extrusion barrel (1), characterized in that: one end of the top of the extrusion barrel (1) is fixedly provided with a feed inlet (2), and the extrusion barrel (1) ) is fixedly provided with an extrusion port (3), the other end of the extrusion cylinder (1) is fixedly provided with a drive motor (4), and the inside of the extrusion cylinder (1) is provided with a motor connected to the output shaft of the drive motor (4). The shaft body (5), one end of the shaft body (5) is fixedly provided with a spiral extrusion blade one (6), the other end of the shaft body (5) is fixedly provided with a spiral extrusion blade two (7), the shaft body (5) The middle position is sleeved with a central extruding plate (8) between the spiral extruding blade one (6) and the spiral extruding blade two (7). 2. The hot runner extrusion mechanism of a mold according to claim 1, characterized in that: the central extrusion plate (8) is composed of a first plate body (9), a second plate body (10) and an electric The heating plate (11) constitutes, and the electric heating plate (11) is fixedly connected between the first plate body (9) and the second plate body (10), and the first plate body (9) and the second plate body (10) are both For metal material. 3. The hot runner extrusion mechanism of a mold according to claim 2, characterized in that: the first plate body (9) is provided with a plurality of extrusion holes one (12), and the second plate body (10 ) is provided with some extrusion holes two (13) matched with the extrusion hole one (12), and the extrusion hole one (12) is identical in diameter with the extrusion hole two (13). 4. The hot runner extrusion mechanism of a mold according to claim 1, characterized in that: the central extrusion plate (8) and the shaft body (5) are connected through a bearing (14), and the center The outer side of the extruded plate (8) and the inner side wall of the extruded barrel (1) are welded connection structures. 5. The hot runner extrusion mechanism of a mold according to claim 1, characterized in that: the inner wall of the extrusion barrel (1) close to the end of the spiral extrusion blade (6) is provided with an electric heating jacket One (15), the inner wall of the extruding cylinder (1) close to one end of the spiral extruding blade two (7) is provided with an electric heating jacket two (16). 6. The hot runner extrusion mechanism of a mold according to claim 5, characterized in that: the inner side walls of the extrusion barrel (1), the first electric heating jacket (15) and the second electric heating jacket (16) All are provided with several spiral ribs 1 (17). 7. The hot runner extrusion mechanism of a mold according to claim 1, characterized in that: the first spiral extrusion blade (6) and the second spiral extrusion blade (7) are provided with several spiral ribs two (18).

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