A mold for molding a glass product is provided. The mold includes a first pressing mold having a first surface and a second pressing mold having a second surface. The first surface is located on a side of the first pressing mold. The second surface is located on a side of the second pressing mold. The first pressing mold includes a first molding portion formed by bending from the first surface. The second pressing mold includes a second molding portion and is formed by bending from the second surface. The first pressing mold further includes a plurality of first hydraulic resistance portions that are spaced apart from each other, close to an outer edge of the first pressing mold, and protrude from the first surface. The disclosure achieves a technical effect of increasing a peripheral molding pressure of the mold and improving yield of products.

A convex fitting portion 30 is provided on a center side to protrude from a support portion 20, and thus, in an assembling process of joining the lens array 100 to another lens array and the like, the lens array 100 can be precisely positioned by being supported from behind. Furthermore, a fitting portion transfer surface 83c forming the convex fitting portion 30 forms a concave portion on the center side of a die at the time of molding of the lens array 100, and thus a volume of a glass droplet, that is, heat capacity is increased, which is advantageous from a viewpoint of making molding of the optical surfaces 11a and 12a stable and highly precise, and the problems such as breakage are less likely to occur.

A method of molding a window for a display device includes: forming curved side surfaces and curved corners of the window, by pressing a heated preliminary window glass to a mold. The mold includes: a flat portion corresponding to a flat display portion of the display device; a window side surface bending portion corresponding to the side surfaces of the display device; and a window corner bending portion corresponding to the corners of the display device. The forming the curved side surfaces of the window includes pressing the heated preliminary window glass against the window side surface bending portion of the mold; and after the forming of the curved side surfaces, forming the curved corners and a flat portion of the window by further pressing the heated preliminary window glass respectively against the window corner bending portion and the flat portion of the mold.

Systems and methods for texturing substrates (e.g., glass, metal, and the like) and the textured substrates produced using such systems and methods are disclosed. An exemplary textured substrate includes a surface having a portion with a root-mean-square roughness between 40 to 1000 microns and an autocorrelation function greater than 0.5 for distances less than 50 microns. An exemplary system for texturing a substrate includes a plunger with a textured surface, where a portion of the textured surface has a root-mean-square roughness between 40 to 1000 microns and an autocorrelation function greater than 0.5 for distances less than 50 microns. An exemplary method for texturing a substrate includes the steps of generating a pattern defining a texture, and 3-D printing the pattern on the substrate to form the texture.

An apparatus and a method of actuating a parison plunger includes transforming linear force applied to a plunger extension into roto-translational motion of the plunger extension via a cam path between the plunger extension and a piston.

The present discloses a mold for processing glass includes a concave mold provided with a cavity and a convex mold matched with the concave mold, the concave mold includes an inner wall for forming the cavity in a surrounding manner, the convex mold includes an outer surface, during mold closing, the convex mold extends into the cavity and is spaced from the inner wall of the cavity, a molding space for molding a three-dimensional glass structure is formed by the outer surface, facing the inner wall, of the convex mold and the inner wall of the cavity jointly in a surrounding manner. The present disclosure further discloses a method for processing glass. By the mold and method for processing glass provided by embodiments of the present disclosure, cracking of a three-dimensional glass product in a processing course can be prevented, and the yield is improved.

A mold for an optical element includes: an upper mold including a first neck part; an upper-surface forming surface that is provided in a distal end of the first neck part of the upper mold, the upper-surface forming surface being configured to form an upper surface of the optical element; a lower mold including a second neck part; a lower-surface forming surface that is provided in a distal end of the second neck part of the lower mold, the lower-surface forming surface being configured to form a lower surface of the optical element; a side-surface mold having a hole into which the first neck part of the upper mold and the second neck part of the lower mold are inserted, a part of an inner surface of the hole being configured to form a side surface of the optical element; and a sleeve to accommodate these molds.

An apparatus for shaping a workpiece made of glass using minimum lubrication is provided. The apparatus includes device for heating the workpiece, a shaping station with at least one forming tool for shaping the workpiece, and at least one spray nozzle for applying an oil as a lubricant onto the surface of the forming tool. The forming tool exhibits heat dissipation such that the temperature on the contact surface of the forming tool during the shaping process is kept below 300 C. The amount of oil dispensed by the spray nozzle per forming step and application instance is less than 0.1 g.

The present invention relates to a mold including a master mold having a first region master mold molding surface having a shape corresponding to a first region of a molded body, and a second region master mold molding surface having a shape corresponding to a second region of the molded body, and in which the master mold includes: an inner mold having the first region master mold molding surface; an outer mold having an accommodating concave portion capable of accommodating the inner mold therein and the second region master mold molding surface on at least a part of an outer edge of the accommodating concave portion; and a buffer material provided between the inner mold and a bottom surface of the accommodating concave portion, the buffer material being pressed and deformed with relative movement of the inner mold and the outer mold.

A cover window manufacturing apparatus includes a plurality of fixed plates, a plurality of moving plates, a plurality of molds and a driver. The plurality of fixed plates is layered and spaced apart at a distance from each other. The plurality of moving plates is layered, spaced apart at a distance from each other and respectively disposed under the plurality of fixed plates. A plurality of connection members integrally connects the plurality of moving plates with each other. The plurality of molds is respectively provided on the plurality of moving plates, and inner spaces for molding the cover window are respectively defined in the plurality of molds. The driver is coupled to one of the plurality of moving plates, and is configured to move the plurality of moving plates towards the plurality of fixed plates such that the plurality of molds are pressed to the plurality of fixed plates.