6results about How to "Improve edge quality" patented technology

The utility model discloses an edge grinding device for circuit board processing, including frame, be equipped with rotating platform and first motor for driving rotating platform rotation respectively on the frame, be equipped with positioning mechanism on rotating platform, be equipped with edge grinding mechanism and moving mechanism for driving edge grinding mechanism displacement respectively on one side of rotating platform of frame top, wherein, positioning mechanism includes six positioning assembly, adjusting member and vacuum chuck, six positioning assembly is uniformly distributed on rotating platform along circumference, adjusting member sets up on rotating platform can drive six positioning assembly synchronous relative rotating platform center and make close or far displacement, vacuum chuck sets up on rotating platform, positioning assembly includes movable block and the positioning pin of elastic telescopic setting on movable block, and positioning pin lower extreme extends to rotating platform below and is equipped with fixed shaft, and positioning pin is elastically convex on movable block top initially, the arc top block of being equipped with correspondingly below edge grinding mechanism on the frame.

This utility model belongs to the field of kitchenware manufacturing, specifically a sealing device for cast iron woks. It includes a main body with a movable module inside, a heating module above the movable module, a limiting module on the right side of the heating module, and a striking module on the right side of the limiting module. The striking module includes a fixed plate, a limiting block, an electric rotating shaft, an extension arm, a wear-resistant pad, a vibration motor, and a striking hammer. The limiting block is installed on the left side of the fixed plate, and an electric rotating shaft is located inside the limiting block. An extension arm is installed on the left side of the electric rotating shaft, and a wear-resistant pad is adhered to the end of the extension arm. This utility model provides more uniform force and a faster striking frequency when sealing the edge of the wok, effectively reducing the labor intensity of operators. It is adjustable and can seal woks of different sizes. It also has a heat insulation effect, effectively isolating heat and reducing safety hazards.

This invention provides a composite board edge banding device and method, including a transmission and positioning mechanism, multiple compatible mechanisms, and multiple sealing mechanisms. The transmission and positioning mechanism includes a conveyor belt, an upper positioning component, and a lower positioning component. The upper and lower positioning components are respectively provided with relatively movable upper and lower suction components for adsorbing and fixing both sides of the board. The compatible mechanism includes a mounting beam extending along a first or second direction and surrounding the transmission and positioning mechanism. The sealing mechanism is correspondingly mounted on the compatible mechanism and includes an assembly frame, a tape carrier, a pressing component, and an edge banding component. The pressing component has movable pressing wheels, and the edge banding component has multiple edge banding wheels, each edge banding wheel including a pressing part and guide parts that contract towards the pressing part at both ends, which can adhere the edge of the tape to the board. The various mechanisms work together to achieve integrated transmission, positioning, sealing, and edge banding, improving edge banding efficiency and product qualification rate.

This invention relates to the field of optical lens technology, and more particularly to an optical system for a large-aperture full-frame fixed-focus lens. It includes a first objective lens group, a second objective lens group, and a third objective lens group arranged sequentially from the object side to the image side along the optical axis. The third objective lens group includes an aperture stop. During focusing, the second objective lens group moves along the optical axis to the image side, while the positions of the first objective lens group, the aperture stop, and the third objective lens group relative to the image plane remain unchanged. This invention's optical system for a large-aperture full-frame fixed-focus lens optimizes light refraction and convergence, balances aberrations, and improves image quality by setting the positive and negative optical powers of each lens group and the ratio between the combined focal length of each lens group and the combined focal length of the entire lens. This further enables the lens to achieve higher image quality.

An edge banding machine and method for obliquely pressing and bonding the side of a disc-shaped sheet material, relating to the field of edge banding machine technology, includes a main frame; the main frame is equipped with a rotating support arm mechanism and an edge banding mechanism; it also includes an edge banding strip stretching mechanism and an oblique pressing mechanism, the edge banding mechanism further including a feeding pressure roller disposed above the disc-shaped sheet material. By pre-stretching the edge banding strip and setting the oblique pressing mechanism, precise pressing and bonding of the annular oblique side of the disc-shaped sheet material is achieved, thereby solving the problem of poor bonding. This effectively solves the problem of poor edge banding bonding of the annular oblique side of the disc-shaped sheet material, improving edge banding quality and product durability.

The application discloses a zoom lens, which comprises a first fixed lens group, a first variable lens group, a second variable lens group, a focusing lens group and a second fixed lens group; the optical power of the first fixed lens group, the second variable lens group and the focusing lens group is positive, and the optical power of the first variable lens group is negative; the first fixed lens group comprises a first to fourth lens; the first variable lens group comprises a fifth to seventh lens; the second variable lens group comprises an eighth to eleventh lens; the focusing lens group comprises a twelfth lens and a thirteenth lens; the second fixed lens group comprises a fourteenth lens; the first lens, the fifth lens, the sixth lens, the tenth lens and the thirteenth lens are negative power lenses; the second lens, the third lens, the fourth lens, the seventh lens, the eighth lens, the ninth lens, the eleventh lens and the twelfth lens are positive power lenses. By matching the lens groups and the optical power of the lenses in the five-group zoom lens, the imaging quality is improved.