CN103538108B - For cutting the toolbox of touch screen protective film - Google Patents

Abstract

The invention discloses a cutter assembly for cutting a touch screen protective film, which includes a cutter, a first guide post, a second guide post, an electromagnet, a knife seat, a magnetic block, an ejector and a knob. The guide post and the second guide post are arranged in parallel and at intervals. The tool seat includes a first guide part, a second guide part and a mounting part. On the second guide post, the installation part is provided with a through hole, the cutter, the magnetic block, the ejector and the knob are arranged in the through hole, and the magnetic block sucks the cutter to make the cutter The blade protrudes downwards from the through hole, and the ejector is ejected between the magnetic block and the knob, and the knob is threadedly connected with the mounting part, and the electromagnet generates magnetic force to attract the knife seat to move downward and Press the blade of the cutter against the protective film of the touch screen. By adjusting the magnitude of the current to control the pressure of the cutter, the pressure of the cutter can be precisely controlled to ensure the cutting effect.

Description

Knife assembly for cutting touch screen protective film

technical field

The invention relates to a cutter assembly for cutting a protective film of a touch screen.

Background technique

Referring to FIG. 1 , the touch screen 10 includes a glass substrate 12 and electrodes 14 disposed on the upper surface of the glass substrate 12 , and the upper surface of the touch screen 10 is covered with a layer of PE protective film 16 . The glass substrate 12 has a thickness of 0.33-1.1 mm; the electrode 14 has a thickness of 20-50 nanometers; and the PE protective film 16 has a thickness of 30-60 microns. During the production process, the PE protective film 16 needs to be cut to remove the PE protective film 16 around the touch screen 10 , so that subsequent processing such as electroplating can be performed around the touch screen 10 .

During cutting, if the tool pressure is too high, the electrode 14 will be cut off directly, and if the tool pressure is too low, the protective film 16 cannot be cut off. Since the thickness of the PE protective film 16 is quite small (about 50 um), traditional knife cutting equipment cannot accurately cut off the protective film 16 without damaging the electrodes 14 .

Contents of the invention

The invention provides a cutter assembly for cutting the protective film of the touch screen, which overcomes the disadvantages of the background technology. The technical solution adopted by the present invention to solve its technical problems is:

A cutter assembly for cutting a touch screen protective film, including a cutter, is characterized in that it also includes a first guide post, a second guide post, an electromagnet, a knife seat, a magnetic block, an ejector and a knob, the first The guide post and the second guide post are arranged in parallel and at intervals. The tool seat includes a first guide part, a second guide part and a mounting part. The knife seat can be vertically reciprocated on the second guide post, and the installation part is provided with a through hole, and the cutter, the magnetic block, the ejector and the knob are arranged in the through hole, and the magnetic block attracts Hold the cutting knife so that the blade of the cutting knife protrudes downwards from the through hole, and the pop-up part pops up between the magnetic block and the knob, and the knob is threaded with the mounting part. When the electromagnet is energized, it generates The magnetic force attracts the knife seat to move downward and presses the blade of the cutting knife on the protective film of the touch screen, and the magnetic force increases as the current increases.

In a preferred embodiment: the blade of the cutting knife is in the shape of an arc.

In a preferred embodiment: the ejector is a slightly compressed spring.

Among a preferred embodiment: the pressure applied by the cutter to the protective film of the touch screen is 1-20 grams

In a preferred embodiment: the through hole is in a stepped shape, the through hole includes a large hole section and a small hole section, the cutter is accommodated in the small hole section, the magnetic block, the ejector and the knob are accommodated in the large hole segment.

In a preferred embodiment: the electromagnet is connected under the first guide part.

In a preferred embodiment: a bearing is further included, the bearing is connected to the installation part, and the cutting knife passes through the bearing.

Compared with the background technology, this technical solution has the following advantages:

1. When the electromagnet is energized, it generates a magnetic force to attract the knife seat to move down and press the blade of the cutter on the protective film of the touch screen. The magnetic force increases with the increase of the current, and is controlled by adjusting the size of the current The pressure of the cutter enables the pressure of the cutter to be precisely controlled to ensure the cutting effect.

2. The pop-up part pops up between the magnetic block and the knob, and the knob is threaded with the installation part. By manually rotating the knob, the pressure of the cutter can also be adjusted. The knife assembly can be controlled from the current, the knob Two aspects are used to adjust the pressure of the cutter, which makes the pressure control of the cutter more precise.

3. The blade of the cutter is in the shape of a circular arc, which weakens the stabbing of the product by the tip of the cutter and effectively protects the electrode of the product.

4. The cutter passes through the bearing, and the cutter can rotate from the shaft.

Description of drawings

The present invention will be further described below in conjunction with drawings and embodiments.

FIG. 1 shows a schematic front view of the enlarged touch screen.

FIG. 2 is a schematic front view of the cutter assembly of the present invention.

FIG. 3 is a partially enlarged schematic diagram of the cutter assembly of the present invention.

FIG. 4 is a partially enlarged schematic diagram of a cutting knife of the knife assembly of the present invention.

detailed description

Please refer to Fig. 2, a kind of cutter assembly 20 that is used for cutting touch screen protective film of the present invention, comprises cutter 21, a first guide post 22, a second guide post 23, an electromagnet 24, a knife seat 25, a The magnetic block 26 , an ejector 27 , a knob 28 and a bearing 29 . The cutter assembly 20 can precisely adjust the cutting pressure of the cutter 21 so that the cutting pressure of the cutter 21 is between 1-20 grams.

The head of the cutting knife 21 has a cutting edge 212 . The blade 212 is arc-shaped, as shown in FIG. 4 .

The electromagnet 24 can generate a magnetic force for attracting the tool seat 25 when energized. The greater the current, the greater the magnetic force generated by the electromagnet 24.

The knife seat 25 includes a first guiding portion 252 , a second guiding portion 254 and a mounting portion 256 . The installation portion 256 defines a through hole 258 , the through hole 258 is stepped, and the through hole 258 includes a large hole section 2582 and a small hole section 2584 .

The first guide post 22 is arranged parallel to the second guide post 23 at intervals. The first guide portion 252 and the second guide portion 254 respectively thread on the first guide post 22 and the second guide post 24 so that the knife seat 25 can vertically reciprocate. The electromagnet 24 is connected under the first guiding portion 252 . The cutting knife 21 is accommodated in the small hole section 2584 , and the magnet block 26 , the spring top member 27 and the knob 28 are accommodated in the large hole section 2582 . The magnetic block 26 attracts the cutting knife 21 so that the blade 212 of the cutting knife 21 protrudes downward from the through hole 258 . The bearing 29 is connected to the mounting portion 256 , and the cutter 21 passes through the bearing 29 . The ejector 27 is ejected between the magnetic block 26 and the knob 28 , and the knob 28 is screwed to the mounting portion 256 .

During work, the touch screen 10 is placed directly below the cutter 21 . After the electromagnet 24 is energized, a magnetic force is generated to attract the knife seat 25 to move downward and make the blade 212 of the cutter 21 press on the protective film 16 of the touch screen 10 . By controlling the size of the current, and manually adjusting the knob 28, the pressure of the cutter 21 is adjusted, so that the pressure applied by the cutter 21 to the protective film 16 of the touch screen 10 is at 1-20 grams, preferably the cutter 21 can Cut into 16 ninety percent of the thickness of the protective film. Then move the cutter assembly 20 to cut the protection film 16 .

The spring top member 27 is preferably a slightly compressed spring.

The above is only a preferred embodiment of the present invention, so the scope of the present invention cannot be limited accordingly, that is, the equivalent changes and modifications made according to the patent scope of the present invention and the content of the specification should still be covered by the present invention within range.

Claims (6)

1. for cutting a toolbox for touch screen protective film, comprise cutting knife, it is characterized in that: also bagDraw together the first guide pillar, the second guide pillar, electromagnet, tool rest, magnetic patch, bullet head part and knob, this first guide pillar withThis second guide pillar parallel interval arranges, and this tool rest comprises the first guide part, the second guide part and installation portion, shouldThe first guide part and this second guide part are set on respectively and on this first guide pillar and this second guide pillar, make this tool rest canVertically move back and forth, this installation portion is provided with through hole, and this cutting knife, this magnetic patch, this bullet head part and this knob arrangeIn this through hole, this magnetic patch holds this cutting knife makes the blade of this cutting knife stretch out this through hole downwards, this bullet head part bulletWithstand between this magnetic patch and this knob, this knob is threaded with this installation portion, and this electromagnet produces in the time of energisingThis tool rest of magnetisation gravitational attraction moves down and makes the blade of this cutting knife to be pressed on the diaphragm of touch-screen, described magneticPower increases with electric current, and this through hole is stairstepping, and this through hole comprises macropore section and aperture section, and this is cutCutter is housed in this aperture section, and this magnetic patch, this bullet head part and this knob are housed in this macropore section.

2. according to claim 1 a kind of for cutting the toolbox of touch screen protective film, its featureBe: the blade of this cutting knife is circular shape.

3. according to claim 1 a kind of for cutting the toolbox of touch screen protective film, its featureBe: this bullet head part is minute-pressure spring.

4. a kind of for cutting the toolbox of touch screen protective film according to described in claim 1 or 2 or 3,It is characterized in that: this cutting knife to the diaphragm applied pressure of touch-screen at 1-20 gram.

5. according to claim 1 a kind of for cutting the toolbox of touch screen protective film, its featureBe: this electromagnet is connected to the below of this first guide part.

6. according to claim 1 a kind of for cutting the toolbox of touch screen protective film, its featureBe: also comprise bearing, this bearing is connected on this installation portion, this cutting knife is through this bearing.