CN112748158A

CN112748158A - Tool for rapidly detecting conductivity of plastic part and detection method thereof

Info

Publication number: CN112748158A
Application number: CN202011552576.0A
Authority: CN
Inventors: 钱小玲; 梅大宝; 孙涛
Original assignee: Wuxi Kehong Label Co ltd
Current assignee: Wuxi Kehong Label Co ltd
Priority date: 2020-12-24
Filing date: 2020-12-24
Publication date: 2021-05-04

Abstract

The invention discloses a tool for rapidly detecting the conductivity of a plastic part and a detection method thereof, wherein the tool comprises an upper panel, the upper panel is connected with a lower panel through a connecting column, a reset switch is arranged on the upper panel, an aluminum foil is attached to the upper surface of the upper panel, a control panel is arranged on the lower panel, and the control panel comprises a buzzer and an IC control chip for controlling the buzzer; the product can be quickly determined to be a conductor or an insulator, waste of the touch membrane is avoided, the touch membrane and the plastic piece are both high-molecular substances which are difficult to degrade, the qualification rate is judged in advance, the utilization rate is improved, and meanwhile, the environmental protection requirement is responded.

Description

Tool for rapidly detecting conductivity of plastic part and detection method thereof

Technical Field

The invention relates to a tool for rapidly detecting the conductivity of a plastic part and a detection method thereof, belonging to the technical field of circuit integration.

Background

With the improvement of science and technology and the improvement of the living standard of human beings, the capacitive sensing operation system is basically adopted in the field of intelligent decoration at present to replace a microswitch. The operation is convenient and quick, the service life of a common microswitch is tens of thousands of times or tens of thousands of times, but the service life of a capacitance induction switch can reach millions or millions of times. Moreover, the conventional capacitive sensing switch is basically made by combining a touch film and an IMD (in-mold decoration) film-coated decoration plastic part to form an operation panel, and the market demand shows that the growth rate of the plastic part in the household appliance industry is continuously developed by 20% every year.

The touch film is a circuit integrated product, characters or display windows can be arranged on a covering film in the IMD film, a plastic part serving as a carrier needs to keep non-conductive property, otherwise, the phenomenon of touch failure can occur due to magnetic field interference after electrification, and therefore, the important point is that how to quickly detect whether the internal part of the IMD film contains conductive materials when the internal part of the IMD film is manufactured.

In the conventional process, a touch film is pasted and then function detection is carried out, if the cover plate contains a conductive substance, a magnetic field is generated by the conductive substance, and after a conductor or a finger touches the cover plate, the generated capacitance induction cannot be captured by a new product, so that no response can be caused, a chip does not send an instruction, and further equipment cannot generate action.

Disclosure of Invention

The invention provides a tool for rapidly detecting the conductivity of a plastic part and a detection method thereof, which are used for overcoming the defect that the capacitance induction cannot be captured due to a magnetic field during the detection of a touch film in the prior art.

In order to solve the technical problems, the invention provides the following technical scheme:

the invention discloses a tool for rapidly detecting the conductivity of a plastic part, which comprises an upper panel, wherein the upper panel is connected with a lower panel through a connecting column, a reset switch is arranged on the upper panel, an aluminum foil is attached to the upper surface of the upper panel, and a control panel is arranged on the lower panel.

The detection method comprises the following steps:

firstly, a power supply is plugged in the tool, and a conductor is arranged in the range of 20CM of the tool so as to avoid magnetic field interference on a test result.

And secondly, pressing down a reset switch to place the product to be detected above the aluminum foil of the upper panel.

Then, the buzzer responds that the object to be measured contains conductive substances, and does not respond that the object to be measured is a non-conductor, so that subsequent touch control by the film can be carried out.

Finally, each test piece requires the reset switch to be pressed.

Further, the control panel comprises a buzzer and an IC control chip for controlling the buzzer.

Furthermore, one side of the control panel is connected with a power line.

The invention has the following beneficial effects: the product can be quickly determined to be a conductor or an insulator, waste of the touch membrane is avoided, the touch membrane and the plastic piece are both high-molecular substances which are difficult to degrade, the qualification rate is judged in advance, the utilization rate is improved, and meanwhile, the environmental protection requirement is responded.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural view of the present invention.

In the figure: 1. an upper panel; 2. a lower panel; 3. connecting columns; 4. a reset switch; 5. a control panel; 51. a buzzer; 52. an IC control chip; 6. a power line; 7. aluminum foil.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.

Example 1

As shown in fig. 1, the tool for rapidly detecting the conductivity of the plastic part and the detection method thereof comprise an upper panel 1, wherein the upper panel 1 is connected with a lower panel 2 through a connecting column 3, a reset switch 4 is arranged on the upper panel 1, an aluminum foil 7 is attached to the upper surface of the upper panel 1, and a control panel 5 is arranged on the lower panel 2.

The control board 5 includes a buzzer 51 and an IC control chip 52 that controls the buzzer 51.

One side of the control panel 5 is connected with a power supply 6.

The detection method comprises the following steps:

Next, the reset switch 4 is pressed down, and the product to be tested is placed above the aluminum foil 7 of the upper panel 1.

Then, the buzzer 51 responds that the object to be measured contains conductive substances, and does not respond that the object to be measured is non-conductive, so that subsequent touch control by film sticking can be performed.

Finally, each test piece requires the reset switch 4 to be pressed.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a frock of short-term test working of plastics electric conductivity, its characterized in that, includes the top panel, the top panel passes through the spliced pole and is connected with lower panel, be equipped with reset switch on the top panel, the aluminium foil is attached to the upper surface of top panel, be equipped with the control panel on the lower panel.

2. The tooling for rapidly detecting the conductivity of the plastic part according to claim 1, wherein the control board comprises a buzzer and an IC control chip for controlling the buzzer.

3. The tooling for rapidly detecting the conductivity of a plastic part according to claim 2, wherein one side of the control board is connected with a power line.

4. The tooling for rapidly detecting the conductivity of the plastic part according to claim 1, wherein the detection method comprises the following steps:

1) a power supply is plugged into the tool, and a conductor is arranged in the range of 20CM of the tool so as to avoid magnetic field interference on a test result;

2) pressing down a reset switch to place a product to be tested above the aluminum foil of the upper panel;

3) the buzzer responds that the object to be tested contains conductive substances, and does not respond that the object to be tested is a non-conductor, so that subsequent touch control by the film can be carried out;

4) one sheet per test requires the reset switch to be pressed.