A straw cutting device

Abstract

The invention discloses a straw cutting device, which relates to the technical field of straw production, and comprises a frame, an intermittent rotating assembly and a driving mechanism. The oblique knife assembly and the flat knife assembly of the straw, the intermittent rotating assembly includes a center plate that is rotatably arranged on the frame, and a plurality of flat mouth pieces that are radially distributed in the center are arranged on the center disk. The flat mouth pieces include core rods, each core On the rotation stroke of the rod, there is a cutting station facing the guide tube and coaxial with the guide tube. When the straw is sleeved on the core rod at the cutting station, the flat knife assembly cuts the straw into a flat mouth, and the driving mechanism is used to drive The center disc rotates intermittently so that each core rod enters the cutting station in turn. The present invention drives the center plate to rotate intermittently through the driving mechanism so that each core rod enters the cutting station in turn, and cooperates with the flat knife assembly to make the flat end of the cut straw smooth and flat.

Description

technical field [0001] The invention relates to the technical field of straw production, in particular to a straw cutting device. Background technique [0002] The diameter of the straw used for sucking milk or alcoholic drinks is generally about 5mm, but it is necessary to use a straw with a large diameter when sucking a drink with a high viscosity or containing solid particles, such as sucking yogurt, pearls, fruit or For pudding milk tea products, the diameter of the straw used is about 12mm. This kind of straw needs to pierce the sealing film of yogurt or milk tea, so the end facing the mouth is flat, and the end inserted into the drink is oblique, sharp The beveled opening facilitates piercing the parafilm. [0003] At present, the production of straws is to melt plastics or degradable materials (such as cornstarch) and blow them into straws. The straws are drawn by the traction equipment through circulating cooling water, and the cooled straws are cut off by the cutti...

AI Technical Summary

Problems solved by technology

[0004] In the prior art, during the cutting process of the straw, the cutter first touches the upper side of the straw, and then the cutter squeezes the straw downward, squeezing the straw against the mouth of the inner wall of the guide tube, and at this time, it is flattened into two pieces that fit together. layer, the junction of the two layers forms a corner, and then the cutter presses the corner against the end of the guide tube and cuts off the straw. When the corner is formed, an irreversible tiny uneven pointed structure similar to burrs will be left. This pointed structure at the oblique end of the straw does not affect the use of the straw, but because the flat end of the straw is the sucker It is contained in the mouth, so the pointed structure at the flat end of the straw will affect the user's least sense of touch, and even scratch the user's mouth or tongue causing damage

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