Forced feeding roller

Abstract

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

Description

Technical Field

[0001] This utility model belongs to the technical field of production equipment for building waterproof and anti-corrosion materials, and specifically relates to the component structure of an extruder. Background Technology

[0002] An extruder is a widely used piece of equipment that uses heating, pressurization, and shearing to soften and melt solid materials, allowing them to flow and be formed into the desired shape through a die. This process is typically accomplished through a barrel with a rotating screw and a spiral channel. Material enters the barrel from a hopper at one end, is extruded by the screw, and conveyed to the tail end for discharge. To facilitate material feeding into the barrel, a transverse feed roller is usually installed inside the hopper. The feed roller is generally a smooth roller or has a toothed or grooved surface (e.g., Chinese patent ZL201922008081.0, "A Feed Roller"). During rotation, the feed roller helps to draw material into the barrel. However, this type of feed roller is more suitable for granular materials. When feeding larger pieces of material (e.g., the blocky raw materials used in the applicant's production of building protective films), the feed roller may spin idly, failing to grip the material and draw it into the barrel. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a forced feed roller that facilitates feeding blocky materials into an extruder.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A forced feed roller includes a pair of two parallel rotating shafts and rotating blades respectively welded to the rotating shafts.

[0006] The rotating blades are in a discontinuous spiral shape, with upper and lower blades respectively arranged on the same rotating axis, and the upper and lower blades are offset by 180° on the axis.

[0007] The upper and lower blades rotate in opposite directions, and the shapes and positions of the rotating blades on the left and right rotating axes are arranged symmetrically.

[0008] The angle α between the tangent of the helical edge of the rotating blade and the axis of the rotating shaft is 10° to 20°.

[0009] By adopting the above technical solution, this utility model has the following advantages compared with the prior art:

[0010] When the forced feeding roller of this invention rotates, the rotating blades can force the material into the extruder, thereby achieving smooth and uniform feeding and ensuring that the uniform output of the adhesive can be used for the smooth production of building protective film products. Attached Figure Description

[0011] Figure 1 A schematic diagram of a forced feed roller installed at the bottom of the feed hopper;

[0012] Figure 2 This is a front view of the forced feed roller;

[0013] Figure 3 A schematic diagram illustrating how to force the feed roller to rotate to another angle; Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0015] Example

[0016] Figure 1 The diagram shows the internal structure of the bottom of the feed hopper. The forced feed roller of this invention includes two parallel rotating shafts 1 and rotating blades 2 welded to the rotating shafts 1 respectively.

[0017] Two rotating shafts 1 are arranged in the horizontal direction and are driven by a drive mechanism outside the feed hopper housing through a sprocket 4. The two rotating shafts 1 rotate synchronously in opposite directions through a synchronous gear 5.

[0018] The rotating blade 2 has a discontinuous spiral shape. There are two blades, upper and lower, on the same rotating shaft 1. The upper blade and the lower blade are offset by 180° on the axis and rotate in opposite directions. The shape and position of the rotating blade 2 on the left and right rotating shafts 1 are symmetrical.

[0019] See Figure 2 As shown, the tilt angle of the rotating blade 2 is 10° to 20°, that is, the angle α between the tangent of the spiral edge of the rotating blade 2 and the axis of the rotating shaft 1 is 10° to 20°.

[0020] When using an extruder to produce the adhesive compound for building protective films, during the process of pouring the blocky raw materials into the feed hopper, the forced feed rollers are rotated in opposite directions under the drive of the drive mechanism (e.g., Figure 1 (As indicated by the arrow direction), the rotating blades 2 shear and agitate the material, forcibly squeezing the material from between the two rollers.

[0021] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A forced feed roller characterized by: It includes a pair of parallel rotating shafts and rotating blades welded to the rotating shafts respectively; The rotating blades are in a discontinuous spiral shape, with upper and lower blades respectively arranged on the same rotating axis, and the upper and lower blades are offset by 180° on the axis. The upper and lower blades rotate in opposite directions, and the shapes and positions of the rotating blades on the left and right rotating axes are arranged symmetrically. The angle α between the tangent of the helical edge of the rotating blade and the axis of the rotating shaft is 10°~20°.

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