CN224130403U - A forced feed roller - Google Patents

Abstract

The utility model discloses a forced feeding roller, which comprises a pair of two parallel rotating shafts and rotating blades respectively welded on the rotating shafts. The rotary blades are in discontinuous spiral shapes, an upper blade and a lower blade are respectively arranged on the same rotary shaft, and the upper blade and the lower blade are staggered by 180 degrees on the axis. When the forced feeding roller rotates, the material can be pressed into the extruder to realize smooth feeding, so that uniform discharging of the sizing material is ensured, and the forced feeding roller can be used for smooth production of building protective film products.

Description

Forced feeding roller

Technical Field

The utility model belongs to the technical field of building waterproof and anticorrosive material production equipment, and particularly relates to a component structure of an extruder.

Background

An extruder is a widely used apparatus that uses heat, pressure, shear, etc. to soften and melt a solid material and to form the desired shape in a flowable state through a die. This is typically accomplished by a barrel having a rotating screw and helical channel, material entering the barrel from a hopper at one end of the barrel, being extruded by the screw and delivered to a tail at the other end of the barrel for discharge, and a transverse feed roll is typically mounted within the hopper for facilitating feeding of the material into the barrel. The feed rolls are generally smooth rolls or are designed with tooth or groove shapes (for example, the Chinese patent 'a feed roll' with patent No. ZL 201922008081.0) on the surface, which can help to roll materials into the machine barrel during rotation, but the feed rolls with the shapes are more suitable for granular materials, and when relatively large materials (for example, massive materials needed by the inventor for producing sizing materials of building protection films) are to be fed, idle running of the feed rolls can occur, and the situation that the materials cannot be snapped into the machine barrel can not occur.

Disclosure of utility model

The utility model aims to solve the defects of the prior art and provide a forced feeding roller which is convenient for feeding massive materials into an extruder.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

A forced feeding roller comprises a pair of two parallel rotating shafts and rotating blades welded on the rotating shafts respectively.

The rotary blades are in discontinuous spiral shapes, an upper blade and a lower blade are respectively arranged on the same rotary shaft, and the upper blade and the lower blade are staggered by 180 degrees on the axis.

The upper blade and the lower blade are opposite in rotation direction, and the shape and the position of the rotating blades on the left rotating shaft and the right rotating shaft are symmetrically arranged left and right.

The included angle a between the tangent line of the spiral edge of the rotating blade and the axis of the rotating shaft is 10-20 degrees.

After the technical scheme is adopted, compared with the background technology, the utility model has the following advantages:

When the forced feeding roller rotates, the turned blades can forcedly feed materials into the extruder so as to realize smooth feeding, and the feeding is uniform, so that uniform discharging of sizing materials is ensured to be used for smooth production of building protective film products.

Drawings

FIG. 1 is a schematic view of a forced feed roller mounted at the bottom of a feed hopper;

FIG. 2 is a schematic front view of a forced feed roll;

FIG. 3 is a schematic illustration of a forced feed roller rotated to another angle;

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

Examples

Fig. 1 shows an internal schematic view of the bottom of a hopper, and the forced feed roller of the present utility model comprises two rotating shafts 1 arranged in parallel and rotating blades 2 welded to the rotating shafts 1, respectively.

The two rotary shafts 1 are arranged in the horizontal direction, driven by a driving mechanism outside the hopper housing via a sprocket 4, and the two rotary shafts 1 are rotated in opposite directions in synchronization via a synchronizing gear 5.

The rotary blades 2 are in discontinuous spiral shapes, an upper blade and a lower blade are respectively arranged on the same rotary shaft 1, the upper blade and the lower blade are staggered by 180 degrees on the axis, the rotary directions of the upper blade and the lower blade are opposite, and the shapes and the positions of the rotary blades 2 on the left rotary shaft 1 and the right rotary shaft 1 are symmetrically arranged.

As shown in FIG. 2, the inclination angle of the rotary blade 2 is 10-20 degrees, that is, the included angle a between the tangent line of the spiral edge of the rotary blade 2 and the axis of the rotary shaft 1 is 10-20 degrees.

When the extruder is used for producing sizing materials of the building protective film, in the process of pouring blocky raw materials into the feed hopper, the forced feeding roller is driven by the driving mechanism to rotate in opposite directions (in the arrow direction shown in figure 1), the rotating blades 2 shear and stir materials, and the materials are forced to be extruded in from the middle of the two rollers.

The present utility model is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present utility model are intended to be included in the scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope of the claims.

Claims (1)

1. A forced feeding roller is characterized by comprising a pair of two parallel rotating shafts and rotating blades respectively welded on the rotating shafts;

The rotating blades are in discontinuous spiral shapes, an upper blade and a lower blade are respectively arranged on the same rotating shaft, and the upper blade and the lower blade are staggered by 180 degrees on the axis;

the rotating directions of the upper blade and the lower blade are opposite, and the shape and the position of the rotating blades on the left rotating shaft and the right rotating shaft are symmetrically arranged left and right;

The included angle a between the tangent line of the spiral edge of the rotating blade and the axis of the rotating shaft is 10-20 degrees.