5results about How to "No misalignment" patented technology

The disclosure discloses a preparation method of a light emitting diode chip, and belongs to the technical field of semiconductors. The preparation method comprises the following steps: growing an epitaxial layer; sequentially depositing a transparent conductive layer and an etching stop layer on one side of the epitaxial layer; patterning the transparent conductive layer and the etching stop layer to expose part of the epitaxial layer; preparing a photoresist layer on the side of the etching stop layer away from the transparent conductive layer, so that the photoresist layer covers part of the etching stop layer; and etching the exposed transparent conductive layer, etching stop layer and epitaxial layer to form a mesa and an isolation trench. The embodiment of the disclosure can simplify the etching process and reduce the process cost.

The application discloses an automatic aluminum rod hanging device, and relates to the field of aluminum processing auxiliary equipment, which solves the problems of low efficiency and big safety hazards of the existing manual ring. The device comprises a beam frame, a lifting mechanism, a hanging assembly and a pushing mechanism. The top of the beam frame is provided with a lifting hook connecting part, and the bottom side is provided with a one-character-shaped telescopic plug-in column arranged in a line. The lifting mechanism drives the plug-in column to synchronously lift. The hanging assembly comprises a chain and a ring adapted to the aluminum rod. The chain is in one-to-one correspondence with the plug-in column. The pushing mechanism comprises a pushing frame with a limiting groove and a screw rod driving structure. When working, the beam frame is turned over, the pushing frame pushes the chain to make the ring align with the plug-in column, the plug-in column penetrates the ring, the beam frame is reset, the pushing frame is retracted to make the ring slide along the plug-in column and be sleeved with the aluminum rod. The device realizes automatic ring sleeving without manual intervention, is accurate in positioning, safe in operation, greatly reduces the labor intensity, improves the production efficiency, and is suitable for the batch transfer demand of the aluminum rod.

The utility model discloses a front sub -frame of convenient assembly swing arm relates to the field of automotive parts. The front sub -frame of convenient assembly swing arm, including frame main part and swing arm main part, frame U type open file and frame closed cavity are provided with in frame main part side, one end of swing arm main part is provided with swing arm closed cavity, just swing arm U type open file is provided with in the other end of swing arm main part. The front sub -frame of convenient assembly swing arm, has broken the design concept of traditional front sub -frame and swing arm same direction assembly, has designed the assembly structure of positive and negative collocation innovatively, in the assembly process, when swing arm closed cavity of swing arm main part front point is embedded into frame U type open file of frame main part, utilizes swing arm U type open file of swing arm main part back point and the virtual positioning that forms with frame closed cavity of frame main part, and the design of virtual positioning makes swing arm main part front and back point not to occur misplacement in the assembly process, has reduced the assembly difficulty.

The utility model discloses a kind of welding support devices for pipe fitting integrated connection, including bottom frame, bottom bar one and bottom bar two are slidably and interval arranged in one side of the bottom frame, end bar is symmetrically arranged in the other end of bottom bar two and bottom frame, support bar two and support bar one are symmetrically arranged in the other side of bottom bar one and bottom frame, cone wheel is rotatably arranged on support bar two, roller is rotatably arranged on support bar one, the opposite side of end bar top is symmetrically connected with cross bar, outer support plate is sleeved on the cross bar, and a plurality of supporting members are evenly connected in the inner end of cross bar;With simple structure, reasonable in design, novel and unique in thought, support a pipe fitting by fixed cross bar's outer support plate and supporting member, and cooperate with movable cross bar's outer support plate and supporting member to support another pipe fitting, another pipe fitting is displaced under the support of supporting member and outer support plate by the displacement of bottom bar one and bottom bar two, and is butt-jointed with a pipe fitting, and is butt-jointed with two pipe fittings for facilitating welding.

This invention relates to the field of cake base conveying technology and discloses a cake base conveying line, including a base frame with a U-shaped structure. Multiple parallel and spaced horizontal plates are arranged on the upper surface of the base frame for placing the cake base. The line also includes a material conveying mechanism and a coating mechanism. The material conveying mechanism includes a lifting block disposed between two adjacent horizontal plates and a lifting assembly disposed on the side of the base frame closest to the ground. The coating mechanism includes a top frame disposed above the base frame, with a brush head in the center of the top frame. The bristles of the brush head face the base frame. When the cake base moves upward with the lifting block to a higher position, the cake base contacts the brush head. This invention, by having the brush head only contact the coating roller to pick up egg wash when the cake base rises to a higher position, fundamentally cuts off the continuous supply of egg wash, completely solving the problem of excess egg wash accumulating on the brush head and dripping and contaminating the conveying line and the products below in traditional devices.