Alloy wire infrared heating welding device

Abstract

The utility model discloses an alloy wire infrared heating welding device, including upper cold die, hot die heating mechanism and lower cold die, the upper cold die includes upper plastic piece product fixed jig and upper plastic piece, the lower cold die includes lower plastic piece and lower plastic product fixed jig, the hot die heating mechanism is two hot die infrared heating mechanism, two hot die infrared heating mechanism symmetrical setting and through horizontal height adjusting bolt fixed on the heating device fixed plate, upper plastic piece and lower plastic piece set up on the hot die infrared heating mechanism, and with the infrared alloy heating wire on the hot die infrared heating mechanism keeps certain heating distance. The alloy wire infrared heating welding device provided by the utility model can replace traditional welding / bonding process, has the characteristics of high welding strength and good sealing effect, and has no welding slag foreign matter, greatly improves product production qualified rate.

Description

Technical Field

[0001] This utility model relates to a heating device for welding processes of plastic products, and more particularly to an infrared heating welding device for alloy wires. Background Technology

[0002] Infrared welding is a more advanced welding process than traditional and ordinary plastic welding techniques; it holds a pivotal position in the field of plastic welding and directly improves the overall quality of products. The industries involved include automotive, 3C (computers, communications, and consumer electronics), medical, and home appliances, with a particular strength in the automotive industry. With the rapid development of modern technology, especially in the automotive industry where demands for intelligence, comfort, safety, and higher quality are increasing, the requirements for welding processes in plastic products have also greatly improved. Infrared heating wire welding was thus developed. Through continuous research and development, infrared welding technology has become increasingly mature and stable, gaining widespread customer favor.

[0003] The infrared heating wire welding process mainly consists of a heating wire, a ceramic insulating mold, a heating wire temperature controller (which controls the current to achieve rapid heating), a small transformer, and other components. Currently, most plastic welding processes are contact welding, which generates weld slag and foreign matter, resulting in low product qualification rates and high scrap rates. Therefore, it is necessary to provide an alloy wire infrared heating welding device. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide an alloy wire infrared heating welding device that can replace traditional welding / bonding processes, and has the advantages of high welding strength, good sealing effect, no welding slag or foreign matter, and improved product qualification rate.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is to provide an alloy wire infrared heating welding device, including an upper cooling mold, a hot mold heating mechanism, and a lower cooling mold; the upper cooling mold includes an upper plastic part product fixing fixture and an upper plastic part, the lower cooling mold includes a lower plastic part and a lower plastic part product fixing fixture, the hot mold heating mechanism consists of two hot mold infrared heating mechanisms, the two hot mold infrared heating mechanisms are symmetrically arranged vertically and fixed to the heating device fixing plate by horizontal height adjusting bolts, the upper plastic part and the lower plastic part are arranged on the hot mold infrared heating mechanism and maintain a certain heating distance from the infrared alloy heating wire on the hot mold infrared heating mechanism.

[0006] Furthermore, the infrared heating mechanism of the thermal mold also includes a ceramic insulating mold, and the infrared alloy heating wire is disposed in the ceramic mold and fixed by a fine nickel wire.

[0007] Furthermore, the ceramic insulating and heat-insulating mold is fixed to the position adjusting plate by a position adjusting hexagonal screw, and the position adjusting plate is provided with position accuracy adjustment parts around its perimeter.

[0008] Furthermore, the heating temperature of the infrared alloy heating wire is 400°-800°.

[0009] Furthermore, the heating distance between the upper plastic part, the lower plastic part, and the infrared alloy heating wire is 1-5mm.

[0010] Compared with the prior art, the present invention has the following advantages: The alloy wire infrared heating welding device provided by the present invention can replace the traditional welding / bonding process, and has the characteristics of high welding strength, good sealing effect, and beautiful overflow, without welding slag or foreign matter, which greatly improves the product qualification rate; it is suitable for welding soft high melting point materials, large irregular thermoplastic workpieces, and workpieces with high cleanliness requirements. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of the alloy wire infrared heating device of this utility model;

[0012] Figure 2 This is a schematic diagram of the heating mechanism of the hot mold in the alloy wire infrared heating device of this utility model.

[0013] The markings in the diagram are as follows: 1-Upper plastic part fixing fixture; 2-Hot mold infrared heating mechanism; 3-Horizontal height adjustment bolt; 4-Upper plastic part; 5-Heating device fixing plate; 6-Lower plastic part; 7-Lower plastic product fixing fixture; 21-Infrared alloy heating wire; 22-Ni fine round wire; 23-Ceramic insulating and heat-insulating mold; 24-Position accuracy adjustment component; 25-Position adjustment replacement plate; 26-Position adjustment external hexagonal screw. Detailed Implementation

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] Figure 1 This is a schematic diagram of the structure of the alloy wire infrared heating device of this utility model; Figure 2 This is a schematic diagram of the heating mechanism of the hot mold in the alloy wire infrared heating device of this utility model.

[0016] Please see Figure 1 and Figure 2The alloy wire infrared heating welding device provided by this utility model mainly consists of an upper cold mold, a hot mold heating mechanism, and a lower cold mold; it is used in conjunction with a standard welding machine. The upper cold mold includes an upper plastic part fixing fixture 1 and an upper plastic part 4, and the lower cold mold includes a lower plastic part 6 and a lower plastic part fixing fixture 7. The hot mold heating mechanism consists of two hot mold infrared heating mechanisms 2, which are symmetrically arranged vertically and fixed to the heating device fixing plate 5 by horizontal height adjusting bolts 3. The upper plastic part 4 and the lower plastic part 6 are set on the hot mold infrared heating mechanism 2 and maintain a certain heating distance from the infrared alloy heating wire 21 on the hot mold infrared heating mechanism 2.

[0017] The alloy wire infrared heating welding device provided by this utility model includes a ceramic insulating and heat-insulating mold 23 as part of the infrared heating mechanism 2. The infrared alloy heating wire 21 is disposed in the ceramic insulating and heat-insulating mold 23 and fixed by a high-purity nickel fine round wire 22. The ceramic insulating and heat-insulating mold 23 is fixed to the position adjusting plate 25 by a position adjusting hexagonal screw 26. The position adjusting plate 25 is provided with position accuracy adjusting parts 24 around its perimeter.

[0018] The infrared heating welding device for alloy wire provided by this utility model has an infrared alloy heating wire 21 with a heating temperature of 400°-800°; the heating distance between the upper plastic part 4, the lower plastic part 6 and the infrared alloy heating wire 21 is 1-5mm.

[0019] Infrared heating reaches temperatures up to 650°C (up to 800°C), using high-temperature radiation to heat and melt the area (weld line) between two plastic parts, achieving a fusion state. The two parts are then pressed tightly together and allowed to cool and solidify, completing the welding process. Throughout the entire process, the heating wire does not contact the product, thus avoiding any adverse effects and significantly improving product quality. The heating wire temperature is controlled via a voltage module controller, easily operated on a display screen. Parameters can be set to achieve the required welding temperatures for different plastic materials, satisfying the needs of various large, medium, and small complex and irregular products.

[0020] The debugging and performance testing of the infrared heating wire of this utility model are as follows: To ensure the stability and reliability of the heating wire, a 48-hour uninterrupted heating test was conducted. The main test contents included: how much the temperature increased for each 5% increase in voltage and current control module; the radiation temperature at 10-second intervals with each 1mm increase in heating distance; and the test results showed that the heating wire maintained a stable and uniform temperature during heating. Actual product application results showed improved product quality. Over long-term production, the heating source demonstrated excellent overall stability. In the field of plastic welding, considering cost and product quality requirements, the welding process using the infrared heating wire offers greater cost-effectiveness and advantages.

[0021] The alloy wire infrared heating welding device provided by this utility model, as a non-contact heating wire welding method, can weld a variety of plastic materials, especially suitable for welding soft high-melting-point materials and large irregular thermoplastic workpieces. It produces aesthetically pleasing overflow without weld slag or foreign matter, promoting the field of plastic welding technology to a new level, particularly empowering the automotive industry and bringing more advanced, aesthetically pleasing, and comfortable products to current automotive parts production. It also improves product qualification rates and reduces product costs. Specific advantages are as follows:

[0022] 1. Infrared heating wire is a non-contact welding process. When heating the product during welding, it will not bring welding slag, foreign objects, etc., thus improving the product qualification rate.

[0023] 2. No preheating required, heats evenly, and can be controlled in multiple stages.

[0024] 3. The heating wire heats up quickly, the heat is concentrated, and the heating time is short.

[0025] 4. The heating wire is completely encased in a ceramic insulating mold, with no exposed heating wire, which improves service life and facilitates disassembly and replacement.

[0026] 5. Temperature control is achieved entirely by the power module controller, which is simple to operate and has protection functions such as wire breakage and leakage.

[0027] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications and improvements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the claims.

Claims

1. An infrared heating welding device for alloy wire, characterized in that, It includes an upper cold mold, a hot mold heating mechanism, and a lower cold mold; the upper cold mold includes an upper plastic part product fixing fixture (1) and an upper plastic part (4), the lower cold mold includes a lower plastic part (6) and a lower plastic product fixing fixture (7), the hot mold heating mechanism consists of two hot mold infrared heating mechanisms (2), the two hot mold infrared heating mechanisms (2) are symmetrically arranged vertically and fixed on the heating device fixing plate (5) by a horizontal height adjusting bolt (3), the upper plastic part (4) and the lower plastic part (6) are arranged on the hot mold infrared heating mechanism (2) and maintain a certain heating distance from the infrared alloy heating wire (21) on the hot mold infrared heating mechanism (2).

2. The alloy wire infrared heating welding device as described in claim 1, characterized in that, The infrared heating mechanism (2) further includes a ceramic insulating mold (23), and the infrared alloy heating wire (21) is disposed in the ceramic insulating mold (23) and fixed by a nickel fine round wire (22).

3. The alloy wire infrared heating welding device as described in claim 2, characterized in that, The ceramic insulation and heat insulation mold (23) is fixed on the position adjustment and replacement plate (25) by the position adjustment external hexagonal screw (26), and the position adjustment and replacement plate (25) is provided with position accuracy adjustment parts (24) around its perimeter.

4. The alloy wire infrared heating welding device as described in claim 1, characterized in that, The radiation temperature of the infrared alloy heating wire (21) is 400°-800°.

5. The alloy wire infrared heating welding device as described in claim 1, characterized in that, The heating distance between the upper plastic part (4), the lower plastic part (6) and the infrared alloy heating wire (21) is 1-5mm.

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