Application device of plastic wrap with hemispherical cutting edge and single-slope toothed blade holder

Abstract

The invention relates to an application device of plastic wrap, in particular to an application device of plastic wrap with a hemispherical cutting edge and a single-slope toothed blade holder. The existing plastic wrap is used by pulling the plastic wrap out of a paper box and forcibly snapping the plastic wrap with a toothed strip of the paper box, and unsafety is caused. During actual use of a plastic wrap box with a function of cutoff, provided by the inventor, cutting off is not easy and pulling the plastic wrap is inconvenient. The application device comprises a blade rest, a blade holder, a grab and an open-closing device. The blade rest is fixed below the front end of the upper portion, and the blade holder is fixed above the front end of the lower portion of the open-closing device; the plastic wrap is extended out of a middle opening of the lower portion of the open-closing device, forwardly passed above the blade holder and the below the blade rest, and pulled out of the application device; a cutting edge of a toothed blade is formed by arranging hemispheres, the top end of a long slot is formed by arranging straight-edge and slope-edge teeth, and the tips of the teeth are not lower than cutting assist points; the grab is sheet shaped and fixed below the upper portion of the open-closing device.

Description

technical field [0001] The invention relates to a daily necessities of fresh-keeping film, in particular to a device for using the fresh-keeping film. technical background [0002] Fresh-keeping film is widely used in people's daily life. It is mainly used for food cleaning and preservation. The usual usage of plastic wrap is to roll up the plastic wrap and place it in a carton. When using it, remove the plastic wrap from the carton. Pull it out, and then put the plastic wrap on the rack on the carton to forcibly break it, or cut it with scissors, and cut it with a knife for use. [0003] There are following problems in above-mentioned usage operation, and 1 is the problem of inconvenience. It is not easy to pull the plastic wrap on the rack of the carton, especially for the plastic plastic wrap with large stretchability. The second is the problem that the carton cannot withstand repeated tossing and cannot be reused. The carton can only be used once for about 30 meters an...

AI Technical Summary

Problems solved by technology

[0003] The above-mentioned usage has the following problems in operation, 1 is an inconvenient problem

It is not easy to break the plastic wrap on the rack of the carton, especially for plastic plastic wrap with large stretchability.

2 is the problem that the carton can not withstand repeated tossing and cannot be reused. The carton can only be used once for about 30 meters and then it is useless.

3. The tip of the tooth is exposed on the outside of the package, which is very unsafe.

[0004] The design of the cut-off plastic wrap box that I proposed in the application of Chinese patents 96229952.9, 2005200474358, 2005200478715, and 200520006577X, in actual use, found that there are two problems. The first is that it takes a lot of force to cut the plastic wrap. The problem that it is not light when cutting

Second, because the top of the cut plastic wrap will be embedded in the knife holder, there is a problem that it is inconvenient to pull the plastic wrap

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