51results about How to "Avoid uneven tension" patented technology

A multi-shaft rotary creel, a sample warper and a warping method are disclosed. The multi-shaft rotary creel comprises: a base body; a main shaft rotatably mounted on the base body so as to project forward, a plurality of supporting shafts rotatably mounted on a forward projecting portion of the main shaft; and a plurality of bobbins mountable on each of the supporting shafts, which is installed opposing to a sample warper with a plurality of yarn guides, and wherein, while the main shaft or each of the supporting shafts rotates in synchronism with rotation of the yarn guides, simultaneous warping of plural yarns by the main shaft or each of the supporting shafts can be performed. Compared with conventional single shaft rotary creel, the multi-shaft rotary creel can further improve the degree of freedom for warping, and can prevent the occurrence of tension fluctuations, and a sample warper (200) and a warping method where warping can be performed efficiently by installing the multi-shaft rotary creel can be provided.

A multi-functional curved board used as a support for legs of a user and for general maintenance of muscle strength, the multi-functional curved board having one or more curved bodies (1) including a radius of curvature, a longitudinal axis, and at least one raised foot support. The multi-functional curved board can be bent in the direction transverse to the radius of curvature to enable the multi-functional curved board to rotate around the longitudinal axis.

A flatbed scanner document scanner includes a large format document scanner body accommodating a rectangular rigid frame with an upwardly facing plane face and a rectangular transparent plate for supporting a large format document. The rectangular transparent plate overlies the upwardly facing plane face all around the metal frame. The scanner also includes a movable carriage configured to move along and below the rectangular transparent plate and carrying a line camera extending across the rectangular transparent plate. The rectangular transparent plate and the metal frame are bonded together by a hard glue seam that runs on the upwardly facing plane face of the metal frame. A predetermined deflected shape can be formed when the bonded plate and frame are turned upside-down. The rectangular metal frame can deform under its own load to a cambered shape, a flat shape or a less deflected shape when turned upright in a normal position.

The invention relates to a battery clamping mechanism, which is characterized in that it includes a first bottom plate, a clamping jaw movement mechanism and a stretching movement mechanism; two second bottom plates capable of relative movement are symmetrically arranged on the first bottom plate The jaw movement mechanism includes two jaw movement mechanism units symmetrically arranged on the two second bottom plates; the jaw movement mechanism unit includes a left jaw and a right jaw for clamping the left and right ends of the electric core; The stretching motion mechanism includes a stretching drive device installed on the first bottom plate, and the power output end of the stretching drive device is connected to two second bottom plates to make the second bottom plates move relative to each other, so that the two jaw movement mechanism units will clamp The tight battery pulls flat. The invention flattens the circular battery core to obtain a flat battery core, avoids the problems of low winding efficiency of the flat battery core and uneven tension in winding the flat battery core in the prior art, and improves the quality of the battery core.

The invention discloses an anti-vibration core expanding tool with a locking function. The anti-vibration core expanding tool comprises a tool bottom plate, a guide rail mechanism and core expanding movable blocks. The guide rail mechanism is arranged on the tool bottom plate. The core expanding movable blocks are arranged in the guide rail mechanism. An expanding sleeve mechanism is arranged between the tool bottom plate and the core expanding movable blocks. An anti-vibration mechanism with the locking function is further arranged between every two adjacent core expanding movable blocks and the tool bottom plate. By the adoption of the anti-vibration core expanding tool, the problem that in the high-speed running process, due to uneven stress, vibration and deformation are generated, and consequently the deformation amounts of different positions are different can be effectively solved, expanding force applied to the inner side wall of a workpiece to be machined is even, and the anti-vibration core expanding tool has the beneficial effects of being simple in structure, low in production cost, convenient to operate, high in shaping speed, high in practicability and suitable for application and popularization.

The invention discloses a paper deviation rectifying device and a deviation rectifying method. The paper deviation rectifying device comprises a rack; at least one deviation rectifying steel roller set used for paper to bypass is vertically arranged on the front side of the rack, electric eye deviation rectifying devices used for paper to pass and detecting whether the paper deviates or not are further arranged on the deviation rectifying steel roller sets, and movable supporting seats are arranged at the two ends of the deviation rectifying steel roller set; and the movable supporting seats are connected with sliding blocks through bearings, two guide columns penetrate through the sliding blocks, pushing air cylinders are further arranged on the rack, and the pushing ends of the pushing air cylinders are connected with the sliding blocks. The paper deviation rectifying device has the beneficial effects that during deviation rectifying, the pushing air cylinders push the sliding blocks, the deviation rectifying steel roller sets are forced to turn over relative to the bearings along with movement of the sliding blocks, the deviation rectifying steel roller set is inclined integrally, the paper is driven to rectify deviation, and the problem of uneven tension is well solved.

The invention discloses a curtain structure using a tensioner. A lock edge pressure strip is structurally characterized in that a round groove with an upper opening, a lower T-shaped groove at the lower part of a plate body and a right T-shaped groove at the right part of the plate body are formed in the plate body, the lower T-shaped groove is provided with a T-shaped cross section and a downward opening, and the right T-shaped groove is provided with a T-shaped cross section and a rightward opening; a curtain is provided with a curtain buckle edge lap, a buckle edge rubber strip is sleeved on the curtain buckle edge lap in a penetration way, the curtain buckle edge lap is inserted and sleeved in the round groove, and the lower T-shaped groove is inserted and sleeved on a curtain structure bracket; each pull block is an L-shaped plate body comprising a short edge and a long edge, a through hole is formed in the long edge, and the height of the short edge is smaller than the width of the opening of the right T-shaped groove; two pull blocks are stacked, inserted and sleeved in the right T-shaped groove, and a pull rope is sleeved in the through holes in the penetration way; a suspension hook is suspended on the curtain structure bracket, and the pull rope is pulled by a pull hook 76. According to the curtain structure, the curtain tension force is balanced, the curtain is smooth, the service life of the curtain structure is prolonged, and the effect of lightly lifting the curtain due to airflow and wind is remarkably reduced.