Radiation type hot plate welding device based on middle infrared band

Abstract

A radiation type hot plate welding device based on an intermediate infrared band comprises a mold bottom plate, a module power supply device is installed on the mold bottom plate, a plurality of sets of module adjusting supports are arranged on the mold bottom plate, and all the module adjusting supports are used for installing intermediate infrared conversion modules; in conclusion, the lower hot plate adopts low-temperature hot melting to soften the welding ribs of the lower product, the upper hot plate adopts non-contact hot melting and middle infrared band radiation to soften the welding ribs of the upper product, then the upper product and the lower product are welded, and the whole process effectively reduces energy consumption, improves appearance, improves welding strength, saves energy, protects the environment and saves production cost.

Description

Technical Field

[0001] The utility model belongs to the technical field of hot plate welding, and in particular relates to a radiation-type hot plate welding device based on a mid-infrared band. Background Art

[0002] Hot plate welding is a welding technology used to connect thermoplastic plastic parts. This welding method is suitable for large or complex-shaped plastic parts, such as car bumpers, water tanks, fuel tanks, washing machine shells, etc. The basic principle of hot plate welding is to heat the plastic surface to be welded to a molten state through a heating element (hot plate), and then quickly contact the molten surface and cool and solidify under a certain pressure to form a strong welded joint; traditional hot plate welding uses high temperature / low temperature welding. This welding technology has the disadvantages of poor welding appearance, high energy consumption, and poor low temperature welding strength. Utility Model Content

[0003] The utility model aims to provide a mid-infrared band radiation hot plate welding device to solve the technical problems of poor overflow effect, high energy consumption and low low-temperature welding strength in existing hot plate welding.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0005] A mid-infrared band radiation hot plate welding device comprises a mold base plate, a module power supply device is installed on the mold base plate, a plurality of groups of module adjustment brackets are arranged on the mold base plate, all the module adjustment brackets are used to install mid-infrared conversion modules, and the module power supply device is used to supply power to the mid-infrared conversion modules.

[0006] Furthermore, the mid-infrared conversion module has a plurality of clamping and fixing parts, and the clamping and fixing parts are arranged in a one-to-one correspondence with the module adjustment bracket;

[0007] The module adjustment bracket includes a fixing part, an adjusting part and two high temperature resistant plates. The fixing part is installed on the mold bottom plate by two fixing screws, and the lower part of the adjusting part is fixed on the fixing part; the lower parts of the two high temperature resistant plates are fixed to the upper sides of the adjusting part by a number of mounting screws, and a clamping and fixing space is formed between the two high temperature resistant plates. The clamping and fixing part of the mid-infrared conversion module is located in the clamping and fixing space and is installed on the upper part of the two high temperature resistant plates by the hot mold adjusting screws.

[0008] Furthermore, a slot is provided at the lower part of the adjusting member, and the upper part of the fixing member is inserted into the slot of the adjusting member. Two long holes are also provided at the upper part of the fixing member, and two threaded holes are provided in the slot of the adjusting member. The two threaded holes correspond to the two long holes, and adjusting screws are passed through the threaded holes and the corresponding long holes.

[0009] Compared with the prior art, the beneficial effects of the utility model are as follows: the lower hot plate of the utility model adopts low-temperature hot melting to soften the weld ribs of the lower product, and the upper hot plate adopts non-contact hot melting, and mid-infrared band radiation softens the weld ribs of the upper product, and then the upper and lower products are welded. The whole process effectively reduces energy consumption, improves appearance, increases welding strength, saves energy and is environmentally friendly, improves product welding efficiency, and saves production costs; and the utility model also provides an adjustment bracket, which can perform local adjustment more reasonably, conform to the product, and improve welding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0011] Figure 1 This is a schematic diagram of the structure of a mid-infrared radiation hot plate welding device according to the utility model;

[0012] Figure 2 Side view of the adjustment bracket for the module;

[0013] Figure 3 for Figure 2 Sectional view at AA;

[0014] Figure 4 Exploded view of the bracket for module adjustment. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0016] The present invention is further described in detail below in conjunction with the embodiments.

[0017] like Figure 1-4 As shown, a specific embodiment of a mid-infrared band radiation hot plate welding device provided by the utility model is as follows:

[0018] A mid-infrared band radiation hot plate welding device comprises a mold base plate 1, a module power supply device 2 is installed on the mold base plate 1, a plurality of module adjustment brackets 3 are arranged on the mold base plate 1, all the module adjustment brackets 3 are used to install a mid-infrared conversion module 4, the module power supply device 2 is used to power the mid-infrared conversion module 4, and the irradiated product is arranged on the mid-infrared conversion module 4. The mid-infrared conversion module 4 is a prior art, also known as a nonlinear infrared sensor wavelength conversion module.

[0019] In this embodiment, the mold bottom plate 1 installs the mid-infrared conversion module 4 and other related parts. The module adjustment bracket 3 can adjust the upper and lower gaps according to the contour of the irradiated product to achieve the uniformity of the radiation energy. The mid-infrared conversion module 4 has a plurality of clamping and fixing parts, and the clamping and fixing parts are arranged one by one with the module adjustment bracket 3. The specific structure of the module adjustment bracket 3 is as follows: it includes a fixing part 5, an adjusting part 6 and two high temperature resistant plates 7. The fixing part 5 is installed on the mold bottom plate 1 by two fixing screws 8. The lower part of the adjusting part 6 is provided with a slot 9, and the upper part of the fixing part 5 is inserted with a In the slot 9 of the adjusting member 6, two long holes 10 are further provided in the upper part of the fixing member 5, and two threaded holes are provided in the slot 9 of the adjusting member 6, the two threaded holes correspond to the two long holes 10, and adjusting screws 11 are passed through the threaded holes and the corresponding long holes 10; the lower parts of the two high temperature resistant plates 7 are fixed to the upper sides of the adjusting member 6 by a plurality of mounting screws 12, and a clamping and fixing space 13 is formed between the two high temperature resistant plates 7, and the clamping and fixing part of the mid-infrared conversion module 4 is located in the clamping and fixing space 13, and is installed on the upper part of the two high temperature resistant plates 7 by a hot mold adjusting screw 14.

[0020] The traditional welding bracket adopts an all-aluminum mold made by overall profiling. During use, it is affected by product deformation, processing errors, and assembly errors, and cannot be reasonably attached to the product to better serve welding debugging. The present embodiment provides a newly designed module adjustment bracket 3, which is spliced ​​with a fixing part 5, an adjusting part 6 and a high temperature resistant plate 7. The clamping and fixing part of the mid-infrared conversion module 4 is locked with the high temperature resistant plate 7. The adjusting part 6 can be relatively fine-tuned in height to control the welding amount. Compared with the traditional welding device, it can reduce economic costs, increase the adjustment amount of the product, facilitate debugging, ensure product size standards, facilitate optimization of welding effects, increase the adjustment amount of the mold, and reduce errors.

[0021] The mid-infrared band radiation hot plate welding device of this embodiment adopts an innovative welding process, which combines low-temperature hot melting and mid-infrared non-contact hot melting technology to achieve product welding. The specific operation mode of this technology is as follows:

[0022] (1) Low-temperature hot melting on the lower hot plate: In this stage, the lower product is placed on a hot plate that can provide uniform low-temperature heat energy. The low-temperature hot melting technology ensures that the heat is only enough to soften (not melt) the material of the weld rib part of the lower product, which helps to control the heat-affected zone and reduce the risk of material damage and deformation.

[0023] (2) Non-contact hot melting and mid-infrared radiation of the upper heating plate: Different from the traditional direct contact heating, the upper heating plate adopts a non-contact method to heat the upper product. The key here is to use the radiation energy in the mid-infrared band emitted by the mid-infrared conversion module 4. The mid-infrared wave has a strong penetrating power and can effectively penetrate the surface of the material and directly act on the inside of the weld rib of the upper product to soften it without physical contact. This non-contact heating method can more accurately control the heating process and reduce thermal stress and local overheating.

[0024] (3) Welding is completed: Once the weld ribs of the upper and lower layers of the product are appropriately softened, the weld rib areas of the two layers of material are tightly combined together by applying a certain amount of pressure or relying on the gravity of the material itself, and a strong weld joint is formed after cooling; since the use of heat energy in the whole process is more precise and efficient, the welding quality and production efficiency can be improved while reducing energy consumption.

[0025] It should be noted that, in this article, terms such as "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0026] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A mid-infrared radiation hot plate welding device, characterized in that: It includes a mold base plate, a module power supply device is installed on the mold base plate, a plurality of module adjustment brackets are arranged on the mold base plate, all the module adjustment brackets are used to install the mid-infrared conversion module, and the module power supply device is used to supply power to the mid-infrared conversion module.

2. The mid-infrared radiation hot plate welding device according to claim 1 is characterized in that: The mid-infrared conversion module has a plurality of clamping and fixing parts, and the clamping and fixing parts are arranged in a one-to-one correspondence with the module adjustment bracket; The module adjustment bracket includes a fixing part, an adjusting part and two high temperature resistant plates. The fixing part is installed on the mold bottom plate by two fixing screws, and the lower part of the adjusting part is fixed on the fixing part; the lower parts of the two high temperature resistant plates are fixed to the upper sides of the adjusting part by a number of mounting screws, and a clamping and fixing space is formed between the two high temperature resistant plates. The clamping and fixing part of the mid-infrared conversion module is located in the clamping and fixing space and is installed on the upper part of the two high temperature resistant plates by the hot mold adjusting screws.

3. The mid-infrared radiation hot plate welding device according to claim 1 is characterized in that: A slot is provided at the lower part of the adjusting piece, and the upper part of the fixing piece is inserted into the slot of the adjusting piece. Two long holes are also provided at the upper part of the fixing piece, and two threaded holes are provided in the slot of the adjusting piece. The two threaded holes correspond to the two long holes, and adjusting screws are passed through the threaded holes and the corresponding long holes.

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