CN-115891089-B - Bicolor extrusion product and production method

CN115891089BCN 115891089 BCN115891089 BCN 115891089BCN-115891089-B

Abstract

Embodiments of the present disclosure disclose bi-color extruded products and methods of production. The production method comprises the steps of conveying gas into an air channel through an air inlet of a die, controlling a first extrusion head to extrude insulating materials into a first cavity channel of the die to form an insulating layer of a bicolor extruded product, controlling a second extrusion head to extrude conductive materials into a second cavity channel of the die to wrap the insulating layer to form a first conductive layer of the bicolor extruded product, and controlling a conveying mechanism to convey a conductive metal sheet to cover a local surface of the first conductive layer to form a second conductive layer of the bicolor extruded product, wherein the first cavity channel is positioned between the air channel and the second cavity channel. According to the embodiment, the bicolor extrusion product can be obtained in one production process, the production efficiency of the product can be improved, and a new conductive product can be obtained, so that the use requirement of a special scene is met.

Inventors

XU CHUANHUI
REN MINGGUO
LI XIANGPU

Assignees

诺兰特新材料(北京)有限公司
诺兰特移动通信配件（北京）有限公司
络派模切（北京）有限公司

Dates

Publication Date: 20260512
Application Date: 20210922

Claims (5)

1. A method of producing a bicolor extruded product comprising: Transmitting gas into the air passage through an air inlet hole of the mold, wherein the air inlet hole of the mold is connected with the air pump through an air pipe; controlling a first extrusion head to extrude an insulating material to a first cavity of the die so as to form an insulating layer of the bicolor extruded product; Controlling a second extrusion head to extrude conductive material to a second cavity of the die so as to wrap the insulating layer and form a first conductive layer of the bicolor extruded product, wherein an adhesive is mixed in the conductive material of the first conductive layer; Controlling a transmission mechanism to transmit a conductive metal sheet so as to cover a local surface of the first conductive layer and form a second conductive layer of the bicolor extruded product, wherein the bicolor extruded product is square, and the conductive metal sheet comprises nickel; The first cavity channel is positioned between the air channel and the second cavity channel, and the outer side wall of the air channel forms the inner side wall of the first cavity channel; Conveying the produced strip-shaped bicolor extrusion product to a high-temperature furnace for local heating, and conveying the strip-shaped bicolor extrusion product to a tunnel furnace for heating, drying and forming; cutting the strip-shaped bicolor extrusion product after drying and forming to obtain the bicolor extrusion product; Wherein the length of the bicolor extruded product is between 3.45 and 3.75 millimeters, and the cross-sectional width of the bicolor extruded product is between 2.45 and 2.8 millimeters, and the cross-sectional height is between 2.3 and 2.6 millimeters; The thickness of the first conductive layer is between 0.05 and 0.15 mm, and round corners are formed on the first conductive layer at the corner positions of the bicolor extruded product; The second conductive layer has a width of 2.424 to 2.576 mm and a thickness of 0.12 to 0.18 mm; Wherein the cross-sectional width is the dimension of a first side of the bicolor extruded product where the second conductive layer is located, and the cross-sectional height is the dimension of a second side of the bicolor extruded product adjacent to the first side; acquiring a target image of the bicolor extruded product through an image acquisition device, wherein the target image comprises an end face image and an image of a second side face adjacent to a first side face where the second conductive layer is located; inputting the target image into a pre-trained detection model, and determining whether the bicolor extruded product meets the process requirement according to the size data output by the detection model, wherein the detection model is used for determining the size of a preset part of the product according to the input target image; In response to determining satisfaction, a conductive coating is sprayed on both ends of the bicolor extruded product.
2. The production method according to claim 1, wherein a rotational speed of the first extrusion head is greater than a rotational speed of the second extrusion head, and a conveying speed of the second conductive layer is 4.9 to 5.1 m/min; Wherein the rotational speed of the first extrusion head is 1.9 to 2.1 revolutions per second, and the rotational speed of the second extrusion head is 0.9 to 1.1 revolutions per second.
3. The production method according to claim 1, wherein the insulating layer is a silica gel material, the material hardness is 40 to 50 shore, and the material viscosity of the first conductive layer is 9 to 10 tens of thousands of Pa-s.
4. The production method according to claim 1, wherein both ends of the second conductive layer are bent in a direction away from the first conductive layer during dicing, wherein an upper limit of a deformation dimension of the second conductive layer in a height direction is 0.1 mm and an upper limit of a deformation dimension in a length direction is 0.6 mm.
5. A bicolor extruded product obtainable by the production process according to any one of claims 1 to 4, comprising: the insulating layer forms a main body of the bicolor extrusion product and is made of insulating materials; The first conductive layer wraps the insulating layer and is made of conductive materials; A second conductive layer covering a partial surface of the first conductive layer, and forming an outer surface of the bicolor extruded product with the first conductive layer; Wherein, the inside of insulating layer is formed with the through-hole.

Description

Bicolor extrusion product and production method Technical Field Embodiments of the present disclosure relate to the field of manufacturing technology, and in particular to a bi-color extruded product and a method of production. Background With the popularization and popularization of electronic products, various electronic products are layered endlessly. Some products are larger and larger (e.g., tablet computers). Some products are more portable and compact (such as mobile phones, headphones, etc.). The requirements for the electronic components installed therein are also increasingly diversified to adapt to different application scenes. At the same time, new technical requirements are also put forward for the production and manufacture of the electronic components. In addition, the existing product process parameter detection generally adopts manual detection or adopts a plurality of detection devices to respectively detect different process parameters. Therefore, the detection period is longer, and the production efficiency of the product is affected. In addition, manual detection often introduces human operational errors. And the different detection devices lack a uniform detection reference. These can affect the accuracy of the test results. Disclosure of Invention The disclosure is in part intended to introduce concepts in a simplified form that are further described below in the detailed description. The disclosure is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used to limit the scope of the claimed subject matter. Some embodiments of the present disclosure propose a two-color extruded product and a method of production to address one or more of the technical problems mentioned in the background section above. In a first aspect, some embodiments of the present disclosure provide a method of producing a bicolor extruded product, including transmitting a gas into an air channel through an air inlet of a mold, controlling a first extrusion head to extrude an insulating material into a first channel of the mold to form an insulating layer of the bicolor extruded product, controlling a second extrusion head to extrude a conductive material into a second channel of the mold to encapsulate the insulating layer to form a first conductive layer of the bicolor extruded product, and controlling a transmission mechanism to transmit a conductive metal sheet to cover a partial surface of the first conductive layer to form a second conductive layer of the bicolor extruded product, wherein the first channel is located between the air channel and the second channel. In some embodiments, the conductive material of the first conductive layer is mixed with an adhesive. In some embodiments, the rotational speed of the first extrusion head is greater than the rotational speed of the second extrusion head, and the transport speed of the second conductive layer is 4.9 to 5.1 meters per minute, wherein the rotational speed of the first extrusion head is 1.9 to 2.1 revolutions per second, and the rotational speed of the second extrusion head is 0.9 to 1.1 revolutions per second. In some embodiments, the insulating layer is a silicone material having a hardness of 40 to 50 shore, and the first conductive layer has a material viscosity of 9 to 10 kilopascal seconds. In some embodiments, the bicolor extruded product is a cube and the material of the conductive metal sheet comprises nickel. In some embodiments, the length of the bicolor extruded product is between 3.45 and 3.75 millimeters, and the cross-sectional width of the bicolor extruded product is between 2.45 and 2.8 millimeters, the cross-sectional height is between 2.3 and 2.6 millimeters, the thickness of the first conductive layer is between 0.05 and 0.15 millimeters, the first conductive layer is rounded at the corner of the bicolor extruded product, the width of the second conductive layer is between 2.424 and 2.576 millimeters, and the thickness is between 0.12 and 0.18 millimeters, wherein the cross-sectional width is the dimension of the first side of the bicolor extruded product where the second conductive layer is located, and the cross-sectional height is the dimension of the second side of the bicolor extruded product adjacent to the first side. In some embodiments, the method further comprises the steps of conveying the produced strip-shaped bicolor extrusion product to a high-temperature furnace for local heating, conveying the strip-shaped bicolor extrusion product to a tunnel furnace for heating, drying and forming, and cutting the dried strip-shaped bicolor extrusion product to obtain the bicolor extrusion product. In some embodiments, the two ends of the second conductive layer are bent and deformed in a direction away from the first conductive layer during the cutting process, wherein the upper limit of the deformation dimension of the second conductive layer in the height directio