37results about How to "Limit width" patented technology

A hook comprises a lift ring (1) and a hook main body (2), wherein the lift ring (1) is connected with the hook main body (2), a sealing device is arranged on the opening of the hook main body (2) and comprises a lock tongue (8) which can be opened outwards, one end of the lock tongue (8) is hinged with one free end on the opening of the hook main body (2), the other free end on the opening of the hook main body (2) is provided with a buckle plate (4) which can buckle up the other end of the lock tongue (8). Compared with the prior art, the hook has the following advantages that the lock tongue can be relatively simply opened, the width of the opening of the hook main body is not limited by the lock tongue and furthermore the weight of the articles to be lifted is not limited.

An airbag apparatus receives an occupant's left breast by an expanded left airbag section and receives the right breast by a right airbag section. A void space of the expanded airbag opposes the lateral center of the occupant's breast. Both the left and right airbag sections expand smoothly and substantially evenly. The left and right airbag sections are folded firstly to obtain a first folded body elongated in the fore-and-aft direction and, subsequently, the distal sides from a joint belt, which connect the midsections in the expanding direction of the left and right airbag sections, are opened laterally apart from each other. The rear sides from the joint belt are folded so as to be reduced in width in the fore-and aft direction to obtain the second folded body, and then the lateral width is reduced by the third folding operation to obtain the final folded body.

The invention relates to the technical field of printers, and discloses a thermal printer. The thermal printer comprises an upper cover and a lower cover; the left end of the upper cover is hinged tothe left end of the lower cover; a rubber covered roller is arranged at the upper end of the lower cover and axially extends in the left-right direction; a thermal sheet is arranged at the position, corresponding to the rubber covered roller, of the upper cover; a paper width adjusting mechanism is further arranged at the upper end of the lower cover; the paper width adjusting mechanism comprisestwo sliding blocks arranged on the lower cover in a left-right sliding mode; and a paper inlet and a paper outlet are formed between the upper cover and the lower cover and are formed in the front endand the rear end of a printer body correspondingly. According to the thermal printer, the hinged position between the upper cover and the lower cover falls in the axial direction of the rubber covered roller and is separated from and does not interfere with a printing paper conveying path of the rubber covered roller, when the upper cover and the lower cover are opened, the paper inlet and the printing paper conveying path are opened, the paper inlet is an open space, paper loading is convenient, and the position of printing paper is convenient to adjust; and the distance between the two sliding blocks can be limited by moving the sliding blocks, and therefore the width of the printing paper is limited, and the use is convenient.

The invention belongs to the field of composite material production and preparation, and relates to a fiber reinforced thermoplastic resin unidirectional prepreg tape and a preparation method thereof. The prepreg tape is prepared from the following components, by weight: 30-70 parts of a thermoplastic resin, 30-70 parts of nature fibers, 0-1 part of a coupling agent, and 0-1 part of an emulsion. Compared with the prepreg tape in the prior art, the prepared nature fiber / thermoplastic resin unidirectional prepreg tape of the present invention has the following advantages and beneficial effects that: mechanical strength is high, the prepreg tape can be stored for a long time, the nature fibers are completely impregnated by the resin and are not exposed to the outside so as to maintain the dry state of the material, particularly the nature fibers, the nature fibers are not easily subjected to mildew deterioration, and the porosity is low so as to ensure performance stability of the product. With the method, the width of the reinforcing material and the nature fibers can be limited so as not to cause nature fiber deviation phenomenon during the subsequent production process.

The invention relates to a swing cloth hopper device of an airflow dyeing machine, which comprises an internal connecting sleeve and a swing cloth hopper; the top of the swing cloth hopper is circular, while the bottom is rectangular; the top of the swing cloth hopper is connected with the internal connecting sleeve; the inside of the swing cloth hopper is provided with a screen plate with vents;the top edge of the screen plate is connected with the top of the swing cloth hopper; the side edge of the screen plate is connected with the side wall of the swing cloth hopper; and the bottom edge of the screen plate is parallel to a short edge of a rectangle on the bottom of the swing cloth hopper. The screen plate is arranged in the swing cloth hopper to limit the tension width, so that the cloth is orderly placed and the cloth stacking phenomenon is not generated; and the screen plate is provided with the vents so as not to influence the ventilation.

The invention relates to a biodegradable composite prepreg cloth, and a preparation method and a device for the same. The composite prepreg cloth comprises a modified polylactic acid (PLA) resin accounting for 40-70 wt% of the composite prepreg and natural fiber. The preparation method comprises the following steps: conducting a continuous drying treatment on natural fiber; immersing the fiber with molten modified PLA; coating the modified PLA on the surface of the natural fiber; and rolling, cooling and winding to obtain the prepreg cloth. The device comprises an untwisting machine, an arrangement warping device, a direction control device, a friction roll, a tenslator, a film extruder, a gum dipping cooling device, and a winding device. Compared with the prior art, the invention has the advantages of large fiber draw ratio, obvious PLA enhancement effect, small wear of the extruder screw, simple process, energy saving and environment-friendliness.