33results about How to "Small tension change" patented technology

The invention discloses an underwater cable folding and unfolding device, it consists of cable, unfolding equipment and folding equipment, among them the unfolding equipment and folding equipment compose the main body of the invention; one end of cable is twined in the folding equipment interior after passing through the unfolding equipment. The invention can ensure cable is arranged in the cable storing space ordered, uniformly and densely in underwater environment, and avoid cable twined each other due to the attack of water flow in the folding and unfolding course, and also can reduce cable stretching force changing and release the attack to folding and unfolding device from cable.

The invention provides a woof-intersecting method and a device thereof for a weaving machine. The method utilizes the motion phase difference between a woof-feeding gripper head and a woof-receiving gripper head, enables the woof-receiving gripper head to move to a limit position in the advance direction and enables yarn brought by the woof-feeding gripper head to get across a yarn-hooking head of the woof-receiving gripper head so that the woof-receiving gripper head starts to retreat, the woof-feeding gripper head still advances to a limit position in the advance direction to finish yarn intersection before the woof-feeding gripper head retreats until the yarn is finished. The device comprises a woof-feeding mechanism and a woof-receiving mechanism which are respectively arranged at both sides of a weaving machine main shaft, and a relative mounting angle between the weaving machine main shaft and a woof-feeding main shaft fixing part at one end of the weaving machine main shaft is larger than a relative mounting angle between the weaving machine main shaft and a woof-receiving main shaft fixing part at the other end of the weaving machine main shaft. The invention enables the tension of the yarn to have little change during the yarn intersection, does not influence the detection of a yarn-stopping device, improves the success rate of the yarn intersection, reduces false yarn stops due to the high-speed motion of the weaving machine and can improve the rotating speed of the weaving machine so as to improve the production efficiency.

The invention belongs to the technical field of slaughtering, and discloses a carbon dioxide concentration control device, a control method and a terminal. The carbon dioxide concentration control device is provided with a box body, an air inlet tube is fixed to one side of the box body through a nut, a display a screen is arranged on one side of the air inlet tube in an inlaid mode, an air outletpipe is fixed to the other side of the display screen through a nut, and an air inlet is fixed to the lower part of the display screen through a nut. A movable door is connected to the front end of the box body in a clamped mode, and a lifting handle is arranged at the front end of the movable door in an inlaid mode, a sleeve ring is fixed to the lower end of the movable door through a nut, pulleys are fixed to the two sides of the movable door through nuts, and a protective sleeve is arranged under the movable door in an inlaid mode. A carbon dioxide asphyxiation method is adopted to suffocate pigs to be treated, the meat quality is ensured, and the efficiency of slaughtering is improved.

The invention discloses a tension control device suitable for light fabric. The device comprises a left rack, a right rack, a tension roller and a transition roller, wherein the left rack is connectedwith a left roller support through a left lifting support, the right rack is connected with a right roller support through a right lifting support, the upper portion of the left roller support is connected with a left buffering linkage mechanism, the upper portion of the left buffering linkage mechanism is rotationally connected with the left end of the tension roller, the lower portion of the left buffering linkage mechanism is in positioning connection with the left rack, the upper portion of the right roller support is connected with a right buffering linkage mechanism, the upper portion of the right buffering linkage mechanism is connected with the right end of the tension roller, the lower portion of the right buffering linkage mechanism is in positioning connection with the right rack, the transition roller is located below the tension roller, and the transition roller is connected between the lower portion of the left roller support and the lower portion of the right roller support through a bearing. The tension control device is more suitable for weaving small-tension variable fabrics in a high-speed running state, and is more novel in structure and higher in practicability.

The invention provides a violin tailpiece with reciprocating lengthening and wide-arc involute groove string hooks in the technical field of musical instruments, and the violin tailpiece comprises: amain tailpiece which is provided with a chute at the central part, four string hook through grooves at the head part, and a main blind hole and two tail rope through holes at the bottom part, whereina screw hole is formed between each string hook through groove and the sliding groove; an auxiliary tailpiece which is arranged in the sliding groove, wherein an ejector rod positioning hole and an auxiliary blind hole are formed in the two ends of the auxiliary tailpiece respectively. an ejector is arranged, one end of the ejector rod abuts against the auxiliary blind hole, the other end of the ejector rod abuts against the main blind hole, and reciprocating relay lengthening of the main tailpiece and the auxiliary tailpiece is formed; four wide-arc involute groove string hooks which are provided with involute grooves and wide arc surfaces and are arranged in the string hook through grooves, wherein the involute grooves do not damage a string ball head string hook, and the wide arc surfaces are used for finely adjusting noise reduction intonation of the wide cambered surface and the inner wall of the rolling string hook through groove. The invention has the advantages that: intonationshift, bridge bending and surface damage caused by environmental humidity change are greatly reduced, the damage of string cores and ball head winding wires is avoided, and the noise is effectively reduced.

The invention belongs to the field of packaging machinery and puts forwards a high-speed paper drawing mechanism, paper feeding mechanism and jamming removal mechanism as well as a high-speed paper folding machine. The high-speed paper folding machine comprises the jamming removal mechanism and further comprises a paper folding mechanism arranged on a fixing rack; paper is delivered to the paper folding mechanism along a paper baffle by the aid of conveying wheels; the paper folding mechanism comprises a plurality of paper folding rollers and paper folding disks arranged on the fixing rack; fixing grooves for fixing the paper folding disks are formed in the fixing rack; and the two sides of the paper folding disks are inserted in the fixing grooves. According to the technical scheme, the technical problem that the paper folding machine is jammed due to the fact that folds are caused easily by the relatively high stress produced by a paper drawing mechanism on the paper during paper drawing in the prior art is solved.

The invention discloses a planetary printing machine. The planetary printing machine comprises a first printing roller, a main drive shaft and a second printing roller which are arranged on a machineframe. The main drive shaft is arranged between the first printing roller and the second printing roller. A main drive gear is installed at one end of the main drive shaft and is further engaged witha first gear on the first printing roller and a second gear on the second printing roller at the same time so as to drive the first printing roller and the second printing roller. The main drive shaftis driven by a servo motor. The first printing roller and the second printing roller are provided with two sets of printing color units in a matched mode correspondingly. A compression roller is further arranged at the feeding side above the second printing roller and can further adjust the pressure for pressing printed objects onto the second printing roller by the compression roller through anair cylinder installed on the machine frame. Drying devices are further arranged between the first printing roller and the second printing roller. The first gear and the second gear are engaged with anilox roller gears of the printing color units matched with the first gear and the second gear separately. The planetary printing machine has the advantages of being simple in transmission structure,low in manufacturing and productive maintenance difficulty, good in printed product quality, high in production efficiency and capable of achieving linkage easily.