33results about How to "Won't cause tangling" patented technology

The invention discloses a cloth traction device for costume processing. The cloth traction device comprises a base; two sets of supporting plates are arranged at the top of the base; a first rotatingshaft is arranged between the two sets of supporting plates; a hand wheel is fixedly connected to one side of the first rotating shaft; a winding and unwinding disc is fixedly installed on the rotating shaft; a servo electric cylinder is fixedly installed at the top of the base; a telescopic rod is fixedly installed at an output end of the servo electric cylinder; a tensioning shaft is fixedly installed on a movable rod of the telescopic rod; a clamping block is slidably connected to the base through a sliding mechanism; a servo motor is fixedly installed on one side of the base; a threaded rod is fixedly installed at an output end of the servo motor through a coupler; the threaded rod is provided with two sections of threads opposite in direction, the two sections of threads opposite in direction are both in threaded connection with threaded sleeves; an arc-shaped plate is fixedly installed on the clamping block; and a plurality of sets of steel balls are arranged in the arc-shaped plate. According to the traction device of the invention, cloth is not prone to abrasion in the winding process, winding of the cloth cannot be caused in the traction process, and the production efficiency is greatly improved.

The invention provides a low-voltage and high-current rotating test rig which is characterized by comprising an anechoic chamber; a rotary table is arranged in the anechoic chamber, an insulation test table is arranged on the rotary table, and an object to be tested is arranged on the insulation test table; a rotary table central hole is formed in the center of the rotary table, a copper bar is arranged in the rotary table central hole, one end of the copper bar is connected with a power supply end of a power supply device, and the other end of the copper bar is connected with the object to be tested through a soft connecting line; the power supply device is arranged in a screened room. According to the low-voltage and high-current rotating test rig, the low-voltage and high-current power supply device is placed below the rotary table and is connected with the object to be tested in a manner that the copper bar can be controlled to ascend or descend at an air shaft area of the rotary table, and the rotary table can rotate by 180 degrees in the forward direction and reverse direction to fully meet the substantial requirements for a maximum radiation harassment surface of the object to be tested for radiation emission test assessment. Meanwhile, the overall manufacturing cost of the customized central air shaft rotary table and the copper bar is far lower than the manufacturing cost of a double-layer rotary table, so the low-voltage and high-current rotating test rig has a great advantage on the manufacturing cost, and the power supply device is quite convenient to maintain.

The invention discloses a center flushing device for a center-closed cutter. The center flushing device for the center-closed cutter comprises a small swivel joint, a large swivel joint, a transition piece, a cutter flange and nozzles. The small swivel joint is connected to the large swivel joint and is in series connection with the large swivel joint, the large swivel joint is fixed on the transition piece, the transition piece is fixed on the cutter flange, the nozzles are arranged on the cutter flange, a channel I of the small swivel joint is abutted with a channel II of the large swivel joint, and the channel II is abutted with a channel III in the transition piece, and the channel II is connected with the nozzles. According to the center flushing device for the center-closed cutter, a water source enters from the inlet of the small swivel joint, passes the channel, the channel II and the channel III and then is sprayed from the nozzle I and the nozzle II, residual soil in the closed cutter center is improved, the residual soil is effectively prevented from being incrusted, and the work efficiency is improved. Furthermore the center flushing device for the center-closed cutter rotates along with the cutter flange entirety, thus winding of a pipeline is not caused, and the occurrence rate of faults is reduced. The center flushing device for the center-closed cutter is convenient to use, easy in manufacturing and good in use effect.

The invention provides a wind driven generator electricity taking slip ring, and belongs to the technical field of wind driven generator parts, the wind driven generator electricity taking slip ring comprises a mounting base, a supporting shaft is movably connected to the middle of the mounting base, a connecting cap is fixedly connected to one side of the supporting shaft, and a groove is formedin one side of the connecting cap; the inner bottom wall of the groove is fixedly connected with a connector lug, and the outer wall of the middle part of the supporting shaft is movably connected with an insulating ring. According to the invention, through cooperative arrangement of the insulating ring, the rotating groove and the rotating shell, the metal spring can be compressed by rotating theadjusting nut in use; so the contact degree of the outer slip sheet and the inner slip sheet in the metal electrode plate is adjusted to adapt to work in different current states, and the rotating groove formed in the middle of the insulating ring is matched with the rotating shell for use, so the internal structure of equipment can be protected, and convenience is provided for equipment movement.

The invention discloses a special automatic packaging equipment for polyester yarn, which belongs to the technical field of polyester yarn packaging. A special automatic packaging equipment for polyester yarn, comprising a box body, the top of the box body is provided with a through groove, and the box body is provided with two symmetrical first grooves, and the inner walls of the two first grooves are respectively rotated and connected with a first rotating shaft and the second rotating shaft, the outer wall of the first rotating shaft is respectively slidably connected with a first rotating disc, the outer wall of the first rotating disc is fixedly sleeved with a second rotating disc, and a roller is fixedly connected between the two fixed discs, and a roller is provided on the roller. Two sets of first chute staggered with each other, the second rotating disk cooperates with the first chute; the present invention is simple in structure, easy to operate, does not need manual operation, reduces labor intensity, avoids potential safety hazards, and at the same time, the packaging tube It can move when turning, which increases the aesthetics of the packaging, avoids the messy winding of polyester filaments on the packaging tube, and is convenient to use.

The invention discloses a center flushing device for a center-closed cutter. The center flushing device for the center-closed cutter comprises a small swivel joint, a large swivel joint, a transition piece, a cutter flange and nozzles. The small swivel joint is connected to the large swivel joint and is in series connection with the large swivel joint, the large swivel joint is fixed on the transition piece, the transition piece is fixed on the cutter flange, the nozzles are arranged on the cutter flange, a channel I of the small swivel joint is abutted with a channel II of the large swivel joint, and the channel II is abutted with a channel III in the transition piece, and the channel II is connected with the nozzles. According to the center flushing device for the center-closed cutter, a water source enters from the inlet of the small swivel joint, passes the channel, the channel II and the channel III and then is sprayed from the nozzle I and the nozzle II, residual soil in the closed cutter center is improved, the residual soil is effectively prevented from being incrusted, and the work efficiency is improved. Furthermore the center flushing device for the center-closed cutter rotates along with the cutter flange entirety, thus winding of a pipeline is not caused, and the occurrence rate of faults is reduced. The center flushing device for the center-closed cutter is convenient to use, easy in manufacturing and good in use effect.

The fitting angle infinite rotary bevel cutting device includes an electrical system and an X-Y-Z mechanical system, and is characterized in that it also includes a fitting angle bevel head and a peripheral torch anti-collision protection bracket; the electrical system includes a numerical control system, an electrical cabinet and a plasma Power supply; the X-Y-Z mechanical system is a gantry-type three-dimensional motion system including a workbench, X-axis, Y-axis, and Z-axis, and the X-axis, Y-axis, and Z-axis are all linear axes; On the mechanical system, the five-axis movement of the torch is realized through the control of the numerical control system to realize the groove processing of the steel plate; the fitting angle groove head is composed of an A-axis, a fixed frame, a B-axis, a cantilever, a torch, a corner plate, The rocker arm and the torch are composed of a three-dimensional anti-collision automatic reset device; the fitting angle groove head adopts space fitting to generate the groove angle, the movement speed is fast, the sealing is good, and the structure is simple.

The invention discloses a test assembly and a test method for dynamic tension-shear mechanics parameters of brittle materials. The test piece assembly includes an oblique cylinder test piece body and a test piece fixture. The test piece fixture includes an incident rod with a ring disk at one end, a transmission rod and The incident rod joint and the transmission rod joint are respectively connected with the incident rod and the transmission rod through the coupling structure. The specimen body is fixedly clamped between the incident rod joint and the transmission rod joint, and the outer surfaces of the incident rod and the transmission rod are also equipped with strain gauges. . This test method only needs to record the incident strain, reflected strain and transmitted strain in the whole process from the impact to the failure and fracture of the specimen through the data acquisition system of the Hopkinson tension rod device, so as to calculate the tensile force of the brittle material during dynamic loading. Stress and shear stress and other mechanical parameters can provide effective data support for the study of mechanical properties of brittle materials, so it has strong practicability.

The invention relates to the field of plasma cutting, and particularly discloses a bottom-driven-type double-parallelogram unlimited rotation bevel cutting head. The bottom-drive-type double-parallelogram unlimited rotation bevel cutting head comprises a horizontal rack, a double-parallelogram mechanism, driving devices and a cage protection connecting piece, wherein the bottom of the double-parallelogram mechanism is movably connected with the horizontal rack through swinging connecting pieces; a horizontal connecting shaft group and a vertical rod group of the double-parallelogram mechanism are connected through revolute pairs to form a horizontal parallelogram mechanism; a vertical connecting rod group and a horizontal connecting shaft group are connected through revolute pairs, and the vertical connecting rod group, the horizontal connecting shaft group and the vertical rod group form a vertical parallelogram mechanism; the driving devices are used for driving the double-parallelogram mechanism to swing vertically and horizontally; the cage protection connecting piece is in movably connected with vertical connecting rods trough pin shafts. The vertical deflection as well as the leftwards and rightwards deflection of the bevel cutting head can be independently controlled through the double-parallelogram mechanism, so that winding between cables and pipelines can be avoided; the bevel cutting head has a simple structure, and is light in weight, lower in manufacturing cost, and more energy-saving.

The invention provides a long-span welding strip threading mechanism. The long-span welding strip threading mechanism comprises a middle beam, an input guide mechanism and an output guide mechanism, wherein a plurality of containing grooves for containing welding strips are formed in the upper surface of the middle beam along the length direction of the middle beam; the input guide mechanism is also provided with a plurality of inlet guide grooves for containing the welding strips; the output guide mechanism is also provided with a plurality of outlet guide grooves for containing the welding strips. According to the long-span welding strip threading mechanism provided by the invention, the grooves with certain depth are formed in the middle beam, and the grooves for containing the welding strips are also formed in the input guide mechanism and the output guide mechanism; the depth of the grooves of the input guide mechanism and the depth of the grooves of the output guide mechanism are set according to the depth of the grooves of the middle beam, so that the welding strip is controlled to be transported at upper ends of bottom surfaces of the grooves in the middle beam all the time; when the welding strip is loosened or after the welding strip is used up, the welding strip is located in the grooves of the middle beam all the time and mutual winding is not caused.

The invention discloses an explosion-proof heating device which comprises a heating controller, a connecting wire, a heating component and an electrochemical sensor. The heating controller is connected with the heating component through the connecting wire. The electrochemical sensor is disposed on the upper portion of the heating component. The explosion-proof heating device further comprises a thermocouple which is disposed inside the heating component. The heating controller judges whether to supply power to a heating strip in the heating component for heating or not according to the temperature fed back by the thermocouple disposed in the heating component. The explosion-proof heating device has the advantages that certain temperature around the electrochemical sensor can be kept, and electrochemical sensor detecting equipment can effectively detect the concentration of poisonous and harmful gases and give out alarms; whether heating is needed or not can be judged accurately to save resources; the heating component is of a reasonable integral structure; the deep thread structure of the inner wall of a heat guide pipe facilitates heat transferring; a locking sleeve is used as a connecting part, and safety and reliability are achieved; a blown fuse is used as the secondary guarantee of the heating device, and explosion accidents can be prevented.

A multifunctional automatic cleaning ship is characterized in that a propeller and a rudder blade are arranged at the bottom of a main body, a solar panel is arranged above the main body, a top cover is located behind the solar panel, the upper surface of the top cover comprises a left slope surface, a front surface and a right slope surface, and when the top cover is lifted, the left slope surface, the front surface and the right slope surface refract light to the solar panel; a camera and searchlights are arranged on the upper portion of the main body and located in front of the solar panel, the number of the searchlights is two, the camera is located between the two searchlights, the solar panel converts solar energy into electric energy when sunlight is sufficient, the searchlights provide illumination to ensure that the multifunctional automatic cleaning ship works at night, and the camera monitors the dynamic state in front of the multifunctional automatic cleaning ship.

The invention discloses an explosion-proof heating device which comprises a heating controller, a connecting wire, a heating component and an electrochemical sensor. The heating controller is connected with the heating component through the connecting wire. The electrochemical sensor is disposed on the upper portion of the heating component. The explosion-proof heating device further comprises a thermocouple which is disposed inside the heating component. The heating controller judges whether to supply power to a heating strip in the heating component for heating or not according to the temperature fed back by the thermocouple disposed in the heating component. The explosion-proof heating device has the advantages that certain temperature around the electrochemical sensor can be kept, and electrochemical sensor detecting equipment can effectively detect the concentration of poisonous and harmful gases and give out alarms; whether heating is needed or not can be judged accurately to save resources; the heating component is of a reasonable integral structure; the deep thread structure of the inner wall of a heat guide pipe facilitates heat transferring; a locking sleeve is used as a connecting part, and safety and reliability are achieved; a blown fuse is used as the secondary guarantee of the heating device, and explosion accidents can be prevented.

The invention discloses a design method of a rotatable pressure switch with a limiting device, and belongs to the technical field of pressure sensor packaging processes. The method comprises the following main process steps: a shell part is connected with a stop part in a welding manner; the shell part slides to the process part through the gap, the shell part and the process part rotate relativeto each other, and the sealing ring ensures that the connection of the shell part and the process part is impermeable to water; a columnar part is fixed to the non-center position of the process partin a threaded connection mode, and when the shell part rotates relative to the process part, it is ensured that the columnar part makes contact with the stop part so as to limit the maximum 360-degreerotating movement of the shell part and the process part. The design method has the advantages that: (1) the pressure switch is rotatable, so that data on the pressure switch display can be read conveniently; and (2) the maximum rotation angle of the pressure switch is 360 degrees, so that internal wires cannot be wound, and the service life is prolonged;