CN206678372U - Segmented grooved barrel - Google Patents

Abstract

The utility model discloses a section slotting machine barrel. It includes a feeding section, a melting section, and a metering section; the feeding section has four left-handed thread grooves, which are in the same direction as the material advances, and are used to quickly compress the material into a spiral shape, and form a shear with the material in the screw groove. Stress; the melting section has 16 semicircular longitudinal grooves, which are different from the forward direction of the material, and are used to cut the material embedded in the semicircular longitudinal groove to form friction between materials; the said There is a left-handed spiral groove in the metering section, which is used to disturb the eddy current of the molten material in the barrel, and improve the mixing effect and the uniformity of temperature distribution. The utility model has the advantages of strong conveying power, high plasticizing capacity, good mixing effect, uniform temperature distribution and the like.

Description

Segmented grooved barrel

Technical field:

The utility model belongs to the technical field of screw extruder components, in particular to a segmented grooved barrel.

Background technique:

Traditional extruders generally use a smooth barrel, and the driving force for the solid material to be conveyed forward is the friction between the material and the smooth barrel, which is small and affects production efficiency. In the traditional smooth barrel extruder, the energy of material plasticization mainly comes from the friction between the barrel and the material and the heat transfer of the barrel (generally speaking, the former plays a leading role). Since the friction force is small, the input energy is relatively small. Less, reducing the plasticizing ability and affecting production efficiency.

The information disclosed in this background section is only intended to increase the understanding of the general background of the present invention, and should not be considered as an acknowledgment or in any form to imply that the information constitutes the prior art already known to those skilled in the art.

Utility model content:

The purpose of this utility model is to provide a segmented grooved barrel, thereby overcoming the above-mentioned defects in the prior art.

In order to achieve the above purpose, the utility model provides a segmented grooved barrel, which includes a feeding section, a melting section, and a metering section; the feeding section is provided with four left-handed thread grooves, In the same direction as the material advances, it is used to quickly compress the material into a spiral shape and form a shear stress with the material in the screw groove; the melting section has 16 semicircular longitudinal grooves, which are different from the material advance direction , which is used to cut the material embedded in the semicircular longitudinal groove to form friction between materials; the metering section has a left-handed spiral groove, which is used to disturb the eddy current of the molten material in the barrel and improve the Mixing effect and uniformity of temperature distribution.

Compared with the prior art, the utility model has the following beneficial effects:

The left-handed thread groove in the feeding section quickly compresses the material into a spiral shape, and forms a shear stress with the material in the screw groove, which enhances the power of material transportation. The semicircular longitudinal groove in the melting section cuts off the material embedded in the semicircular longitudinal groove, forming friction between materials, which is much greater than the friction between the material and the barrel, thus increasing the input energy , increased plasticizing capacity. The left-handed spiral groove in the metering section disrupts the eddy current of the molten material in the barrel, improving the mixing effect and the uniformity of temperature distribution.

Description of drawings:

Fig. 1 is the structure schematic diagram of segmental slotting barrel of the present invention;

Reference signs are: 1-feeding section, 2-melting section, 3-metering section, 4-left-handed thread groove, 5-semicircular longitudinal groove, 6-left-handed spiral groove.

detailed description:

The specific embodiments of the present utility model are described in detail below, but it should be understood that the protection scope of the present utility model is not limited by the specific embodiments.

Unless expressly stated otherwise, throughout the specification and claims, the term "comprise" or variations thereof such as "includes" or "includes" and the like will be understood to include the stated elements or constituents, and not Other elements or other components are not excluded.

As shown in Figure 1, a segmented grooved barrel includes a feeding section 1, a melting section 2, and a metering section 3; the feeding section 1 has four left-handed thread grooves 4, which are in the same direction as the material advances, It is used to quickly compress the material into a spiral shape, and form a shear stress with the material in the screw groove, which enhances the power of material transportation; the melting section 2 is provided with 16 semicircular longitudinal grooves 5, which are connected with the material advancing Different directions are used to cut the material embedded in the semicircular longitudinal groove 5 to form the friction between the material and the friction force is much greater than the friction force between the material and the barrel, thus increasing the input energy and increasing the Plasticizing capacity: the metering section 3 is provided with a left-handed spiral groove 6, which is used to disturb the eddy current of the molten material in the barrel, and improve the mixing effect and the uniformity of temperature distribution.

The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the present invention and its practical application, so that those skilled in the art can realize and utilize various exemplary embodiments of the present invention and various Different options and changes. It is intended that the scope of the invention be defined by the claims and their equivalents.

Claims (1)

1. segmentation fluting machine barrel, it is characterised in that：Including：Feeding section, melt zone, metering section；The feeding section is provided with a four-head left side Thread groove is revolved, it is identical with the direction that material advances, for material Fast Compression to be formed into material in helical form, with screw channel Between form shear stress；The melt zone is provided with 16 semicircle longitudinal grooves, different from the direction that material advances, for cutting The material being embedded into semicircle longitudinal groove, the friction formed between material and material；The metering section be provided with one it is left-handed Spiral grooves, for upsetting vortex of the fused materials in machine barrel, improve the uniformity of mixed effect and Temperature Distribution.