CN109264125B - Active rotary air type film tearing method - Google Patents
Active rotary air type film tearing method Download PDFInfo
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- CN109264125B CN109264125B CN201811042702.0A CN201811042702A CN109264125B CN 109264125 B CN109264125 B CN 109264125B CN 201811042702 A CN201811042702 A CN 201811042702A CN 109264125 B CN109264125 B CN 109264125B
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- cup body
- protective film
- tearing
- rotary air
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B69/00—Unpacking of articles or materials, not otherwise provided for
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- Mechanical Engineering (AREA)
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- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
Abstract
In order to solve the technical problem of low efficiency of manual film tearing in the prior art, the invention provides an active rotary air type film tearing method which mainly comprises the following steps: firstly, forming a gap between the protective film and an object; secondly, fixing the object in a vacuum adsorption mode; and thirdly, vertically blowing the protective film by high-speed 360-degree rotating airflow at the position of 10-20 mm above the protective film, wherein the airflow enters gaps between the protective film and the object, and the airflow rapidly tears off all the protective films attached to the object, so that the film tearing efficiency is improved.
Description
Technical Field
The invention relates to the technical field of tearing machines, in particular to a film tearing method for actively tearing a protective film.
Background
In order to avoid damage to important electronic components in the circuit board during transportation or other testing stages, the electronic components are usually covered with a protective film, and the protective film is torn off when the circuit board enters the assembly process.
At present, the tearing of the protective film mainly depends on manual work, and an operator needs to twist the tearing piece upwards to further enable the protective film and the electronic element glass to be torn. However, a circuit board is covered with a plurality of protective films, the tearing direction of the protective films is different, and if a manual film tearing mode is still adopted, the production efficiency of the whole assembly process is reduced due to the low efficiency of the film tearing process. If part of the protective film is stuck to the surface of the object, the operator can twist the tear-off member only by means of the tool, which may cause scratches on the surface of the wiring board.
Disclosure of Invention
The invention aims to provide a film tearing method capable of quickly tearing off a protective film.
In order to achieve the purpose, the technical scheme of the invention is as follows:
the active rotary wind type film tearing method is used for tearing off a protective film covered on an object and mainly comprises the following steps:
firstly, forming a gap between the protective film and an object;
secondly, fixing the object in a vacuum adsorption mode;
thirdly, vertically blowing the protective film by high-speed 360-degree rotating airflow at the position of 10-20 mm above the protective film, wherein the airflow enters a gap between the protective film and the object, and the protective film is torn off from the surface of the object along with the displacement of the object or the airflow;
the device for forming high-speed 360-degree rotating airflow is a rotating cup; the rotating cup comprises an outer cup body, an inner cup body and a flexible air injection pipe; the cup bodies of the inner cup body and the outer cup body are both in a hollow conical shape with openings at two ends, and the small-diameter end of the cup body is provided with a hollow columnar connecting part; the inner cup body is arranged inside the outer cup body, and the connecting part of the inner cup body is fixedly connected with the connecting part of the outer cup body through a bearing; the flexible gas injection pipe is arranged in the inner cup body, the top of the flexible gas injection pipe is in gas connection with a high-pressure gas source through a gas pipe, and the distance from the bottom of the flexible gas injection pipe to the cup mouth of the inner cup body is 5-10 mm.
In one or more embodiments of the invention, the dust suction device is started to quickly remove the torn protective film at the same time as the third step of starting.
In one or more embodiments of the present invention, the slits are formed by: the protective film is provided with a glue-free tearing piece, the protective film is attached to the surface of the object, and a gap is formed between the tearing piece and the object and/or the carrying platform.
In one or more embodiments of the invention, the tear-off member is extruded with a fold line corresponding to one side of the article.
In one or more embodiments of the present invention, the outer cup body and the inner cup body are injection molded by using polyoxymethylene material.
In the technical scheme, a high-pressure air source enters a flexible air injection pipe through an air pipe; when high-pressure air is injected into the flexible air injection pipe, the flexible air injection pipe moves due to pressure and rotates 360 degrees along the conical inner wall of the inner cup body to generate rotating air flow, the rotating air flow fluctuates and enters gaps between the protective film and the object, and all the protective film attached to the object is torn off by the air flow along with the relative displacement of the object and the rotating cup.
Compared with the prior art, the invention has the beneficial effects that: the fluctuation and the rotatory air current that rotatory air current generating unit produced get into the gap of protection film and article, along with article and the relative displacement's of revolving the cup emergence, the air current tears all protection films attached to on the article fast away, has improved the efficiency of tearing the membrane.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below.
FIG. 1 is a front view of the article disclosed in the second embodiment;
FIG. 2 is a side view of an article according to the second embodiment;
FIG. 3 is a schematic cross-sectional view of a cup according to the second embodiment;
FIG. 4 is a side view of an article according to the third embodiment.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Example one
The active rotary wind type film tearing method is used for tearing off a protective film covered on an object and mainly comprises the following steps:
firstly, forming a gap between the protective film and an object;
secondly, fixing the object in a vacuum adsorption mode;
and thirdly, vertically blowing the protective film by high-speed 360-degree rotating airflow at the position of 10-20 mm above the protective film, wherein the airflow enters a gap between the protective film and the object, and the protective film is torn off from the surface of the object along with the displacement of the object or the airflow.
Example two
Referring to fig. 1 and 2, a plurality of protective films B are attached to the object a, each protective film B is provided with a non-adhesive tearing member C, and a gap D is formed between the tearing member C and the object a.
The device for generating a rotating airflow described in the first embodiment is a bell cup. Referring to fig. 3, the rotating cup comprises an outer cup body 11 and an inner cup body 12 which are supported by polyoxymethylene material, and a flexible gas nozzle 13; the cup bodies of the inner cup body and the outer cup body are both in a hollow conical shape with openings at two ends, and the small-diameter end of the cup body is provided with a hollow columnar connecting part; the inner cup body is arranged inside the outer cup body, and the connecting part of the inner cup body is fixedly connected with the connecting part of the outer cup body through a bearing 14; the flexible gas injection pipe is arranged in the inner cup body, and the top of the flexible gas injection pipe is in gas connection with a high-pressure gas source through a gas pipe. The high-pressure air source enters the flexible air injection pipe through the air pipe; when high-pressure air is injected into the flexible air injection pipe, the flexible air injection pipe moves due to pressure and rotates 360 degrees along the conical inner wall of the inner cup body to generate rotating air flow.
The object a in fig. 1 is placed on a vacuum stage. And vacuumizing by the vacuum carrying platform to firmly adsorb the object A.
The rotating cup which is 10 mm-20 mm above the protective film generates airflow rotating at a high speed by 360 degrees. The protective film is vertically blown downwards by the air flow. Along with the displacement of the object or the air flow, the air flow entering the gap D tears the protective film from the surface of the object.
EXAMPLE III
Referring to fig. 4, a tear tab C is disclosed in the second embodiment in which a fold line E is extruded along a side of the article. The fold line is formed by a blunt knife, and the cross section of the fold line is in an isosceles triangle shape.
And a gap F is formed between the tearing piece and the object when the folding line E is broken, and even if the tearing piece is tightly attached to the object under the influence of static electricity, the gap D disappears, air flow can enter the gap F to peel off the protective film.
Example four
When the third step is started in the first embodiment, the dust suction device is started to quickly remove the torn protective film, so that the peeled protective film is prevented from being attached to the object again.
Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (5)
1. The active rotary air type film tearing method is used for tearing off a protective film covered on an object, and is characterized by mainly comprising the following steps of:
firstly, forming a gap between the protective film and an object;
secondly, fixing the object in a vacuum adsorption mode;
thirdly, vertically blowing the protective film by high-speed 360-degree rotating airflow at the position of 10-20 mm above the protective film, wherein the airflow enters a gap between the protective film and the object, and the protective film is torn off from the surface of the object along with the displacement of the object or the airflow;
the device for forming high-speed 360-degree rotating airflow is a rotating cup; the rotating cup comprises an outer cup body, an inner cup body and a flexible air injection pipe; the cup bodies of the inner cup body and the outer cup body are both in a hollow conical shape with openings at two ends, and the small-diameter end of the cup body is provided with a hollow columnar connecting part; the inner cup body is arranged inside the outer cup body, and the connecting part of the inner cup body is fixedly connected with the connecting part of the outer cup body through a bearing; the flexible gas injection pipe is arranged in the inner cup body, the top of the flexible gas injection pipe is in gas connection with a high-pressure gas source through a gas pipe, and the distance from the bottom of the flexible gas injection pipe to the cup mouth of the inner cup body is 5-10 mm.
2. The active rotary air type film tearing method according to claim 1, wherein a dust suction device is started to rapidly remove the torn protective film at the same time of starting the third step.
3. The active rotary air-type film tearing method according to claim 1 or 2, wherein the slits are formed by: the protective film is provided with a glue-free tearing piece, the protective film is attached to the surface of the object, and a gap is formed between the tearing piece and the object and/or the carrying platform.
4. The active rotary air type film tearing method according to claim 3, wherein a fold line is extruded on one side of the tearing piece corresponding to the object.
5. The active rotary air type film tearing method according to claim 1, wherein the outer cup body and the inner cup body are both injection molded by using a polyoxymethylene material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811042702.0A CN109264125B (en) | 2018-09-07 | 2018-09-07 | Active rotary air type film tearing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811042702.0A CN109264125B (en) | 2018-09-07 | 2018-09-07 | Active rotary air type film tearing method |
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| CN109264125A CN109264125A (en) | 2019-01-25 |
| CN109264125B true CN109264125B (en) | 2021-02-19 |
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| CN201811042702.0A Active CN109264125B (en) | 2018-09-07 | 2018-09-07 | Active rotary air type film tearing method |
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| CN113635655A (en) * | 2021-07-29 | 2021-11-12 | 蚌埠国显科技有限公司 | Film tearing method for ultrathin flexible glass |
| CN113772204A (en) * | 2021-08-30 | 2021-12-10 | 武汉天喻信息产业股份有限公司 | Metal nickel sheet with protective film, film removing device and film removing method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE3706046C1 (en) * | 1987-02-25 | 1988-05-26 | Agfa Gevaert Ag | Device for unloading X-ray sheet film cassettes |
| CN102107865A (en) * | 2009-12-28 | 2011-06-29 | 北京富纳特创新科技有限公司 | Preparation method of carbon nanotube film |
| CN203726962U (en) * | 2013-09-26 | 2014-07-23 | 俞伽达企业股份有限公司 | Copper foil stripping mechanism |
| CN104589778B (en) * | 2014-12-31 | 2017-02-22 | 明基材料有限公司 | Diaphragm separation device and diaphragm separation method |
| TWM516287U (en) * | 2015-09-22 | 2016-01-21 | 聯策科技股份有限公司 | Film peeling device |
| CN107813588B (en) * | 2017-10-23 | 2019-10-25 | 武汉华星光电半导体显示技术有限公司 | The separator and separation method of flexible display panels |
| CN107985703A (en) * | 2017-12-28 | 2018-05-04 | 苏州福莱科斯电子科技有限公司 | Full-automatic PET cover layers tear off machine |
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