Welding module of semi-automatic hot plate welding equipment for plastic impeller

Abstract

The invention discloses a welding module of semi-automatic hot plate welding equipment for a plastic impeller. According to the technical scheme, the welding module comprises a first backrest clamp assembly used for installing a front opening of an impeller upper cover in a sleeving mode, a first adjusting deformation mechanism used for fixing the impeller upper cover to the first backrest clamp assembly, a second backrest clamp assembly used for installing a hub of an impeller lower cover in a sleeving mode, and a second adjusting deformation mechanism used for fixing the impeller lower cover to the second backrest clamp assembly. The first backrest clamp assembly and the second backrest clamp assembly are arranged oppositely. A fan-shaped groove and a fan-shaped protrusion which are meshed with each other are arranged at the contact position of the first adjusting deformation mechanism and the second adjusting deformation mechanism. According to the scheme, the production efficiency can be improved, the welding quality is improved, and the concentricity of the impeller upper cover and the impeller lower cover after welding is improved.

Description

technical field [0001] The invention relates to the technical field of welding equipment, in particular to a welding module of a plastic impeller semi-automatic hot plate welding equipment. Background technique [0002] Due to the complex flow channel structure of plastic impellers, it is difficult to demould the overall injection molding or the mold cost of the overall injection molding is too high; in many cases, the impeller is divided into two parts, the upper cover of the impeller and the lower cover of the impeller, which are injected separately, and then welded by hot plate or Ultrasonic welding and other methods combine the two; hot plate welding is widely used because of its simple operation, firm welding, and low mold cost. The hot plate welding equipment in the prior art is basically manual equipment, with low production efficiency and poor concentricity after fusion. [0003] The existing manual hot plate welding equipment can weld the upper cover of the impelle...

AI Technical Summary

Problems solved by technology

[0004] There are the following defects: ①. After the blade width of the impeller upper cover is processed, it is easy to deform for a period of time. When heating, some blades will not be heated and some blades will be melted too much, which will easily cause the impeller to be welded weakly or the flow channel will overflow. Excessive and affect performance

②. The melting amount of the impeller upper cover blade when heating depends entirely on the experience of the operator. It is possible that the melting amount is greater than or less than 1.5mm. The impeller is not welded firmly or the width of the impeller channel is inconsistent, which affects the performance

③. Take it off after heating, put it into the welding jig and align it with the limit groove and then weld it. It is difficult to control the time and accuracy; the proficiency of the workers is very high, and it is easy to cause the melt to cool but not yet Welding or misalignment of the positioning notch impeller upper cover, impeller lower cover melting part can not be docked, both of which will result in weak welding

④. The outer diameter of the impeller and the welding jig are positioned during welding, but due to certain deformation and dimensional deviation of the injection molded parts, it is difficult to put the upper cover of the impeller and the lower cover of the impeller into the welding jig; it is necessary to enlarge the outer diameter of the impeller and the welding jig The gap between them will cause the upper cover of the impeller and the lower cover of the impeller to be out of concentricity

⑤, completely manual, low production efficiency

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