44results about How to "Easy to change lines" patented technology

The invention discloses a heavy frictional combined conveying line which is characterized by comprising a rail, a double-wheel driving device and / or a single-wheel driving device, and a dolly. The double-wheel driving device comprises motors, driving wheels, friction plates and a spring compressing device; the driving friction wheels are installed on driving shafts of the motors; friction objects are cast or installed at outer parts of the driving friction wheels; a gap is formed between the friction plates on the driving wheels; bases of the motors rotating in opposite directions are connected on a steel structure by using a base shaft and a bearing respectively; and the spring compressing device is connected with the bases of the two motors; centers of the base shaft of one motor and a motor driving shaft are not in a same line; the thickness of a dolly friction plate is slightly greater than the width of the gap; and the frictional force is adjusted by the spring compressing device. The heavy frictional combined conveying line has the advantages that firstly, work pieces carried by the conveying line are mainly carried by the rail, and the driving device provides the frictional force only; secondly, the conveying line can have a power and free function, the frictional force is easy to adjust, and the friction plates are easy to change and convenient to maintain; and thirdly, the conveying line comprises an upper layer and a lower layer, thereby being convenient for automatic production.

The invention relates to a high-angle rotation wire feeding device of a bucket wheel machine, which is installed a rotation central line at the upper section of a vertical column of the bucket wheel machine, is positioned above a pitching mechanism, and is suspended on a vertical column pull rod through welding. The upper end of the high-angle rotation wire feeding device of the bucket wheel machine is provided with a hoisting shaft which is connected to the vertical column pull rod through a screw rod and can perform small-amplitude pendulum motions along the rotation central line of the bucket wheel machine; the middle of the high-angle rotation wire feeding device of the bucket wheel machine is provided with an inverted T-shaped rotary shaft which is fixed on a hoisting shaft through a pressing plate, and can rotate for 360 degrees around the rotation central line; the lower end of the high-angle rotation wire feeding device of the bucket wheel machine is provided with an arch-back-shaped hoisting frame; the upper end of the hoisting frame is clamped into the rotary shaft, and the annular forms of cable wires penetrate through the arch back part of the hoisting frame; the arch back part forms a cylinder channel by dual-arc-shaped tile-shaped steel plates, and upper and lower tile-shaped steel plates are fixed by bolts; cable wires are arranged on the lower tile-shaped steel plate in a lapping manner; and the upper tile-shaped steel plate is covered on cable wires of the lower tile-shaped steel plate in a lapped manner. An electric cable rotary cylinder is arranged on a tail vehicle, and cable wires run through the vertical column through the tail vehicle, and directly enter a cab through a wire feeding device on the rotation central line of the vertical column, and under the condition, the rotation angle is increased to + / -165 degrees.

The invention discloses a double-sided intelligent embroidering machine comprising a rack and two embroidering units, wherein each embroidering unit comprises a workbench, an embroidering frame and an embroidering element; the embroidering element comprises a machine head and a thread stand; the two embroidering units are symmetrically arranged at two sides of a central line of a beam; one group of machine heads comprises a plurality of branch machine heads, and the signal outlet end of a control system is respectively connected with the signal output ends of the plurality of branch machine heads; the thread stand is movable, is provided with a supporting frame at the bottom and is arranged on the rack through the supporting frame, the movable thread stand is driven by a first driving device, and the first driving device comprises a slide block I arranged on the supporting frame as well as a guide rail I and a driving body I which are matched with the slide block I. The double-sided intelligent embroidering machine disclosed by the invention is simple in structure and capable of simultaneously operating two working units, intelligently selecting the machine heads, combining various colors and processing a large-amplitude and super-multiple color embroidery, so that the work efficiency is greatly increased.

The invention discloses a thread stand of a sewing machine. The thread stand comprises at least two pay-off devices and connecting devices, wherein the at least two pay-off devices are respectively used for accommodating wound upper threads (12) and accommodating wound bottom threads (13); the connecting devices are used for connecting the pay-off devices and the sewing machine. By utilizing the connecting devices, the pay-off devices are installed on a machine body of the sewing machine, that is, the thread stand is installed on the machine body of the sewing machine. The thread stand is simple in structure, and is convenient to install; the existing installation mode is changed, the thread stand is close to users; threads are relatively convenient to change and adjust, and the thread stand is convenient to operate by users, and is fixedly connected so as to prevent from being knocked off effectively, and further the working efficiency is improved. The invention also discloses the sewing machine comprising the thread stand.

The invention provides a chromatoghraph line antiforge method and antiforge paper. Fine lines are buried in the paper and the colour permutatuin combination character of fine line is called as colour order character and as antiforge character. The antiforge paper of the same colour order character is only used for the same users or the same brand or other the same antiforge object. The chromatoghraph line antiforge paper is suitable for high-speed production and is hard to forge and easy to identifying.

The invention provides a 3D mesh cloth sewing machine. The 3D mesh cloth sewing machine comprises a sewing device, and a material supply device for conveying a large amount of 3D mesh cloth to the sewing device; the sewing device comprises a sewing rack, and a sewing table which is mounted on the sewing rack and through which the large amount of 3D mesh cloth horizontally pass; a plurality of sewing units are arranged in a row on the sewing rack, wherein the plurality of sewing units are arranged at equal intervals in the width direction of the sewing table to synchronously sew the large amount of 3D mesh cloth on the sewing table in a single line manner; each sewing unit comprises a sewing needle which is positioned above a corresponding sewing opening and can act up and down, and a rotating shuttle which is positioned below the corresponding sewing opening and matched with a quilting seam. With the adoption of the 3D mesh cloth sewing machine, a single line is used only for sewing, a backing line is not required to be mounted, and thus the use is convenient; the plurality of sewing units are used for directly sewing through a single needle and the single line at a time, so that the working efficiency is improved.

The invention discloses an orifice cover for a manhole, which includes a sleeve and a clamping mechanism inside the sleeve; the sleeve includes a ring body and an annular platform placed on the upper end of the ring body, and the outer diameter of the ring platform is larger than that of the human body. The aperture of the hole; the inner side of the annular body is provided with more than one chute, the chute is provided with a slider, and the slider includes a slider body and a connecting block with holes extending from the two ends of the slider body; clamping The mechanism includes springs, fastening bolts, nuts and two hinges with through holes. The slider connects the two hinges with through holes through the pin shaft, so that the two hinges form a hinge; After the fastening bolt passes through the holes on the two hinge sheets, the hinge forms an opening, and the spring is horizontally arranged in the opening. The opening of the invention is a horizontal surface, which will not affect the measurement of the water level gauge; the invention is provided with a clamping mechanism for clamping and fixing the measuring line, so as to reduce the influence of the sliding of the measuring line and the inflection point of the measuring line on the monitoring accuracy.

The invention discloses a POE switch (1) with a waterproof function. The POE switch comprises a first shell part (10) and a second shell part (20) which are connected with each other, wherein the first shell part (10) is integrally formed; the part, facing the second shell part (20), of the first shell part (10) is open; the other part of the first shell part (10) is closed, the second shell part(20) is of a flip structure, and the second shell part (20) is embedded into the opening of the first shell part (10). Therefore, the body of the POE switch (1) has a waterproof function, and therefore the POE switch (1) can be well adapted to front installation requirements. Therefore, the technical problem in the prior art that the existing POE switch does not have a waterproof function under the condition that the front installation requirement is met is solved.