83results about How to "No seams" patented technology

A panoramic display system includes a curved projection screen, a panoramic projector, and a substantially conically shaped barrier. The projector is configured to project an image onto the projection screen from a projection point located substantially above the projection screen. The conical barrier has a base disposed toward the bottom of the projection screen, and an apex region disposed toward the projection point. The barrier blocks scattered light from reflecting from portions of the curved screen to other portions thereof.

The invention relates to a method for producing an upper part (1) of a shoe, in particular of a sports shoe. In order to achieve an upper part of the shoe with increased wearing comfort, the method provides the following steps according to the invention: a) supplying at least one shoe last (2), which corresponds to the inner shape of the upper part (1) of the shoe which is to be produced; b) applying a radial braiding machine (3) having an annular creel (4), which is designed for weaving and / or braiding along three axes; c) guiding the at least one shoe last (2) through the centre (5) of the creel (4) and simultaneously weaving and / or braiding along three axes using a fibre material, and therefore woven and / or braided material positions itself around the outer circumference of the shoe last (2); d) once the at least one shoe last (2) has been guided through the centre (5) of the creel (4): terminating the weaving and / or braiding and removing the woven and / or braided material from the shoe last (2); e) further processing the woven and / or braided material to complete the shoe.

The invention discloses a manufacturing method of a sewing-free umbrella. The method comprises the step of connecting an umbrella face onto an umbrella framework for supporting the umbrella face, wherein the specific steps are as follows: (1) providing a fixing part, wherein the longitudinal cross section of the fixing part is roughly in the shape of U, the fixing part is provided with a closed end for being sheathed and clamped on the umbrella framework and an open end for being connected with the umbrella face in a penetrating mode, and a pair of teeth for being connected with the umbrella face in a penetrating mode and then being buckled and locked on the umbrella framework are respectively arranged on the corresponding end surfaces on two sides of the open end of the fixing part, and (2) sheathing and clamping the closed end of the fixing part on the umbrella framework, and using the teeth at the open end to be connected with the umbrella face in a penetrating mode, and then be buckled and locked on the umbrella framework. By utilizing the manufacturing method, the connection between the umbrella face and the umbrella framework does not need to be sutured, only the fixing part needs to be sheathed and clamped on the umbrella framework, then the umbrella face is connected in a penetrating mode and further buckled and locked on the umbrella framework, and the specific operation can be completed through a professional clamp, thereby greatly improving the production efficiency; and the manufactured umbrella is simple in structure, firm and durable, and the umbrella has no seams and is more attractive in appearance. The manufacturing method of the sewing-free umbrella is the reformation and technical regeneration of the traditional structure for connecting the umbrella face with the umbrella framework.

A die-casting die of a double-bottom pan and a process for making the double-bottom pan by the die-casting die belong to the technical field of casting. The die-casting die comprises a fixed die and amoving die, wherein, the inner surface of the fixed die is provided with a pan body model and an aluminum liquid jet orifice, the inner surface of the fixed die is also provided with positioning seatssymmetrically arranged at the two sides of the pan body model, the two positioning seats are respectively connected with a cylinder at the outside thereof and slide inwards and outwards with the reci procating motion of the cylinder, the inner surfaces of the two positioning seats are corresponding to the outer peripheral wall shape of the pan body model; the inside part of the moving die is provided with a first concave cavity matched with the pan body model and a second concave cavity matched with the two positioning seats, and a 1-6mm gap is kept between the peripheral wall of the first concave cavity and the pan body model. The double-bottom pan made by the die-casting die has the advantages of firm connection, mark-free bottom surface and very nice appearance.

The invention relates to a cast-in-place light inner partition wall in the building material field and is characterized in that a lightweight insulation board (2) or a lightweight insulation board (2) and a hollow cylinder (3) are embedded in a wall body (1) which is manufactured by adopting a cast-in-place method. The cast-in-place method comprises the steps of: fixing a row of mold board at oneside of the partition wall needing to be casted, later fixing the lightweight insulation board or the lightweight insulation board and the hollow cylinder in the middle of the partition wall needing to be casted, and then fixing another row of mold boards at the other side of the partition wall needing to be casted, wherein the terminals of the two rows of mold boards are connected with the existing wall body or an L-type component or a T-type component; casting inorganic cementitious slurry with self-leveling property between the two rows of mold boards, forming the cast-in-place lightweightinner partition wall by curing at normal temperature, and then dismantling the mold boards at the two sides of the partition wall. The cast-in-place lightweight inner partition wall is embedded with a lightweight insulation board, has more compact structure, no paving seams, better sound insulation effect and heat insulation effect, light wall body, simple construction and lower cost, and no needof prefabricated wall panel.