32results about How to "Ensure constant tension" patented technology

The invention relates to a full-automatic die cutting machine for a pole piece. The full-automatic die cutting machine comprises a front die cutting mechanism and a rear die cutting mechanism, wherein the front die cutting mechanism comprises an unreeling device, a deviation correcting sensor, a first tension regulating device, first transition rollers, a deviation correcting device and a pole piece blanking cutting die device, and the rear die cutting mechanism comprises a main driving device, a length measuring device, second transition rollers, a second tension regulating device and a reeling device; a first material storing device is arranged between the deviation correcting device and the pole piece blanking cutting die device, and a second material storing device is arranged between the main driving device and the length measuring device; the first material storing device comprises a first storage piece floating roller and a first lifting mechanism, and the first storage piece floating roller can be driven to move upwards or downwards by the first lifting mechanism; the second material storing device comprises a second storage piece floating roller and a second lifting mechanism, and the second storage piece floating roller can be driven to move upwards or downwards by the second lifting mechanism. Through the use of the full-automatic die cutting machine disclosed by the invention, the pole piece blanking efficiency is improved, and the efficiency of blanking pole pieces of lithium batteries is ensured.

The invention involves a tension device of tandem rolling system. It includes two guide rollers guiding rolling pieces move, floating roller is equipped between said two guide rollers and supports rolling pieces with constant force and makes the rolling pieces stretching force constant through moving up and down, the rolling pieces between said floating roller and said two guide rollers is vertical. Said floating roller can be connected with a hydraulic means which has constant support force, also can be connected with a counterweight body with constant stretching force through hanger rope. The invention proposes a technology program which ensures rolling pieces stretching force constant in rolling plant through changing storage rolling pieces length in rolling mill plant, has characteristics of simple structure, separately adjustment, fast dynamic response and high control precision, etc, it effectively solves the enormous puzzle and technical difficulty stopping tandem rolling technique development for years and years.

The invention relates to a film coating machine, in particular to a two-sided automatic plate-alignment film coating machine, which is provided with a basic cloth delivery-furl mechanism, a first basic material delivery-furl mechanism, a first composite mechanism, a second basic material delivery-furl mechanism, a second composite mechanism, a first color mark sensor, a second color mark sensor, a processor, a servo controller, and a servo motor; the second basic material delivery-furl mechanism is provided with a second basic material delivery-furl shaft, a second pressing roll, and a second basic material guiding roll which are driven by a second basic material delivery-furl motor; the servo motor drives the second basic material guiding roll; the processor is connected with the servo controller; and the servo controller is connected with the servo motor. The film coating machine has the automatic plate-alignment function of two-sided design, and the delivery-furl composite speed is rapid, the productivity effect is high, even though the basic material adopts an OPP film with very thin thickness, the highest delivery-furl composite speed of the OPP film can reach 80 meters per minute, the relative displacement of the color mark combined on the OPP films of the two sides of the same plastic braided cloth can be controlled within 3 mm.

The invention provides a manual diamond wire cutting machine, comprising: a bed, a gear transmission device, a crank slider guide rod mechanism, a wire take-up and release device, a fixed supporting and floating pressing device, a wire transporting mechanism, and a fixed workbench. The working process of the whole machine is: the motor drives the driving gear to rotate, so that the two working gears with the same geometric size meshing with the upper and lower gears respectively rotate, and cranks with a phase difference of 180 degrees and equal eccentricity are installed on the working gears. The shaft is connected with the slider guide rod through the rolling bearing, which converts the rotary motion of the working gear into the linear reciprocating motion of the upper and lower slider guide rods. In the working section of the emery line, the non-metal plate is pressed by the floating pressing material and the fixed supporting device, so that the instantaneous forward movement distance and speed of the emery line installed on the guide rods of the upper and lower sliders are equal to the instantaneous backward movement distance and speed, and the alignment is completed. Reciprocating cutting of non-metallic workpieces.

The invention provides an unreeling device and a laminating machine and relates to the technical field of lithium battery manufacturing equipment. The unreeling device comprises an unreeling mechanismfor releasing a diaphragm in a material coil, a tension control mechanism for adjusting the tension of the transported diaphragm, a caching mechanism for caching the transported diaphragm, and a plurality of via rollers for guiding, supporting and tensioning the transported diaphragm. The diaphragm released by the unreeling mechanism enters a laminating mechanism through the via rollers, the tension control mechanism and the caching mechanism and the laminating mechanism drives the diaphragm to move in a reciprocating manner to laminate in a Z shape. The laminating machine comprises the unreeling device. The invention aims to provide the unreeling device and the laminating machine to alleviate the problem that the laminating efficiency is affected when the tension of the diaphragm is controlled improperly in the prior art.

The invention provides a calculation method for a basket-type rope-forming machine stranded rope. The method comprises the steps of: the change of the winding diameter of a rope-making machine duringthe pay-off process is detailedly analyzed, and providing a stranded rope cross-winding model used by the rope-forming machine in the unwinding process; establishing a calculation method of filling coefficients [lambda]1 and [lambda]2 of winding of a stranded rope when the arrangement number n of the stranded rope is even and odd and a calculation method of an instant radius D(t) of the axis of apay-off wheel; and determining the filling coefficient of winding of the stranded rope and the winding diameter, namely a non-linear function relation of the instant radius of the axis of the pay-offwheel and the time to achieve the accurate control of tension of the stranded rope of the rope-forming machine in the unwinding process so as to improve the quality of the steel rope spinning and prolong the service life of the steel rope.

The invention provides a square winder variable-speed winding system and a method. The square winder variable-speed winding system comprises a servomotor module, a coding module, an acquisition module and a control module, the servomotor module comprises a winding pin-driving unit and a pulse generator unit, and the pulse generator unit outputs the working pulses of the servomotor module; the coding module adopts a coder unit to periodically interrupt and output feedback pulses; the acquisition module simultaneously acquires the working pulses and the feedback pulses; the control module comprises a central processor unit, a memory unit and a control unit, the central processor unit is used for calculating the winding speed corresponding to the feedback pulses and storing the corresponding relation between the winding speed, the working pulses and the feedback pulses into the memory unit, and the control unit changes the winding speed of the system according to the corresponding relation between the working pulses and the corresponding relation.

The invention relates to the technical field of carbon fiber spreading, in particular to a yarn winding system. The yarn winding system comprises an unwinding device, a yarn translation device and a flat plate winding device, wherein the unwinding device is used for unwinding yarns on a yarn barrel under constant tension; the yarn translation device is used for changing the positions of the yarnsreleased from the unwinding device in the direction perpendicular to the conveying direction of the yarns; and the flat plate winding device is used for winding and forming the yarns; a weight is hungbetween two yarn storage rods, and the yarn tension is ensured to be constant while yarn storage is carried out by using the weight of the weight, so that the problem that the yarn tension is not constant due to the fact that a core mold is plate-shaped and the yarn tension is not constant is solved, and the yarns uniformly wind the plate-type core mold. Meanwhile, the invention further relates to a yarn winding control method. According to the control method, the moving speed of a yarn guide part and the rotating speed of the plate-type core mold are reasonably set, so that the uniform and seamless winding of the yarns on the plate-type core mold is realized, and the mechanical property of a finally-formed carbon fiber product is good.

The invention discloses a tension adjusting mechanism for a multi-wire cutting machine. The tension adjusting mechanism for multi-wire cutting machine comprises linear guide rails, a machine frame, a stator assembly, a magnetic grid ruler, a moving assembly, a sliding wheel assembly and a mover. The linear guide rails are fixed on the frame, and the stator assembly is also fixed on the frame and is positioned in the middle of the two linear guide rails. The magnetic grid ruler is fixed on the frame along one side of the linear guide rails. The moving assembly is slidably mounted on the linear guide rails and connected with the sliding wheel assembly. The mover is connected with and drives the moving assembly. The tension adjusting mechanism of the multi-wire cutting machine can ensure constant tension on the diamond line and reduce disconnection rate of the equipment.

The invention provides a wire twisting device of a welding wire twisting machine and the welding wire twisting machine. The wire twisting device comprises a wire twisting cylinder, a plurality of welding wire reels, wire winding tubes, a wire taking device and a driving device, wherein the wire twisting cylinder is rotatably arranged on a bracket; at least peripheral welding wire reels pivotally sleeve the outer side of the wire twisting cylinder; the wire winding tubes are arranged in the wire twisting cylinder, and comprise peripheral welding wire winding tubes and a central welding wire winding tube; the wire taking device is used for guiding welding wires on the welding wire reels into the corresponding wire winding tubes; and the driving device is used for driving both the wire twisting cylinder and the welding wire reels to rotate. As the peripheral welding wire reels are arranged on the outer side of the wire twisting cylinder, the diameters of the welding wire reels are not limited by the space of the wire twisting cylinder and can be increased, the welding wires loaded on the welding wire reels are relatively heavy, the idle hour caused by the replacement of the welding wire reels can be greatly shortened, and the production efficiency can be greatly improved.

The invention discloses a steel wire rope bending fatigue testing apparatus which comprises a rack, a driving wheel, a test wheel, a guide wheel, a counterweight wheel, a control box and a driving device, wherein the driving device is used for driving the driving wheel; the counterweight wheel is mounted on a wheel stand; a fixing block is arranged on the rack and positioned above the counterweight wheel; a chute is formed in the fixing block along the vertical direction; the upper end of the wheel stand is connected into the chute in a sliding manner; the lower end of the wheel stand is connected with a servo driving device used for driving the wheel stand to move up and down; the servo driving device is electrically connected with the control box; a tension sensor is arranged on the testwheel; and the tension sensor is electrically connected with the control box. According to the testing apparatus disclosed by the invention, the tension stressed by a to-be-tested steel wire rope isacquired in real time by the tension sensor, the wheel stand is driven to move up and down by a servo electric cylinder so as to give a certain compensation in the process of enabling the to-be-testedsteel wire rope to slide up and down, and the tension stressed by the to-be-tested steel wire rope in the testing process is further kept constant, so that the accuracy of test data is improved.

The invention discloses a method and device for detecting a pre-shrinking rate of a preshrunk woven fabric. The method for detecting the pre-shrinking rate of the preshrunk woven fabric comprises a first fabric tension adjusting mechanism arranged on a cloth inlet side of a rubber blanket cloth shrinking unit, a second fabric tension adjusting mechanism arranged on a cloth outlet side of a wool blanket drying unit and a central processing unit. A first length measuring mechanism for measuring an operating length of the fabric is arranged on the cloth inlet side of the rubber blanket cloth shrinking unit, a second length measuring mechanism for measuring the operating length of the fabric is arranged on the cloth outlet side of the wool blanket drying unit, and the first fabric tension adjusting mechanism, the second fabric tension adjusting mechanism, the first length measuring mechanism, the second length measuring mechanism and the central processing unit are connected. By arrangingthe first fabric tension adjusting mechanism and the second fabric tension adjusting mechanism and carrying out regulation and control, it is ensured that tensile forces at two length measuring placesare equal when lengths of the fabric before and after preshrinking settle are measured. According to the invention, length percentages of the fabric before and after preshrinking settle can be preshrunk accurately and truly, and a current accurate fabric preshrinking rate is calculated.

The invention discloses a V-shaped geometric form of a middle plate structure of a middle groove. A head end (2) of a middle plate (1) of a middle groove part of a traditional scraper conveyer is designed as a V-shaped edge port with an outward obtuse angle; the V-shaped port is corresponding to a vertical surface of a center line of the middle plate to form an included angle a; a traditional straight port is remained at a tail end (3); meanwhile, the length from a sharp angle at a V end (2) of the head end of the middle plate to a flat port (3) at the tail end is a standard section length L; the shape and size consistency of the middle groove part is kept in operation; in installation and linkage, a K-shaped connecting form is formed in the head-tail connecting place of the middle plate in the middle of each section of the middle groove, so that a gap included angle is formed; and no-gap linkage is realized through head-tail leaning of the middle plate. The no-gap linkage can guarantee constant tension of a ring chain, so that the displacement and the impact of the middle groove in a working state are effectively controlled, and the turning demands needed by the formation of an S-shaped curved line in lateral displacement of the middle groove are guaranteed.

The invention discloses a joint control method and system for an unmanned aerial vehicle and a follow-up trolley. The method comprises a vertical direction joint control process and a horizontal direction joint control process which are carried out at the same time. The vertical direction joint control process comprises the following steps of 100, enabling a gravity sensor to measure pipeline gravity loaded by an unmanned aerial vehicle, and enabling a tension sensor to measure a pipeline tension value, 110, controlling a pipeline winding and unwinding device to wind and unwind the pipeline according to the pipeline tension value, so that the pipeline is kept in a tensioned state, and 120, adjusting power output of the unmanned aerial vehicle according to the change of the gravity of the pipeline, and enabling the unmanned aerial vehicle to keep moving at the constant speed. The horizontal direction joint control process comprises the following steps that 200, the distance sensor measures the relative distance and angle between the follow-up trolley and the unmanned aerial vehicle; and 210, the speed of the follow-up trolley is adjusted according to the relative distance and angle, so that the distance and angle between the follow-up trolley and the unmanned aerial vehicle are maintained at the preset distance and angle. The joint control method ensures that the unmanned aerial vehicle moves at a constant speed in the spraying process, and the spraying quality is improved.

The invention provides a special wire tightening device for a linear cutting machine tool and the linear cutting machine tool. The special wire tightening device comprises a supporting base, a slide supporting base and a guide wheel, wherein the supporting base is fixedly arranged on a wire rack of the linear cutting machine tool; the slide supporting base is positioned below the supporting base, and can be assembled on the supporting base in a sliding mode vertically relative to the supporting base; and the guide wheel is assembled on the slide supporting base, and can move vertically along with the slide supporting base relative to the supporting base. According to the special wire tightening device, the supporting base on the special wire tightening device is improved, so that the special wire tightening device is better matched with a machine tool, and constant tension of a molybdenum wire cutting line is ensured; the quality and efficiency problems that when the linear cutting machine works, the surface of a part is rough, the cutting efficiency is low, the wire breaking cost is increased and the like due to molybdenum wire tension relaxation are solved; and the special wire tightening device is simple in structure and convenient to operate, and improves the cutting efficiency.

The invention discloses an intelligent control method and device for the preshrinking rate of a preshrinking woven fabric. The control device comprises a rubber blanket cloth shrinking unit, a wool blanket drying unit and a central processing unit, the rubber blanket cloth shrinking unit comprises a pressing roller, a pressure bearing roller, a rubber blanket and a pressing motor, a first fabric tension adjusting mechanism and a first length measuring mechanism are arranged on the cloth inlet side of the pressure bearing roller, a second fabric tension adjusting mechanism and a second length measuring mechanism are arranged on the cloth outlet side of the pressure bearing roller, and the first fabric tension adjusting mechanism, the first length measuring mechanism, the second fabric tension adjusting mechanism, the second length measuring mechanism and the pressing motor are connected with the central processing unit. A temperature sensor for detecting the temperature of the pressure bearing roller and a displacement measuring mechanism for detecting the displacement of the pressing roller are arranged on the rubber blanket cloth shrinking unit, and the temperature sensor and the displacement measuring mechanism are connected with the central processing unit. According to the intelligent control method and device, the fabric preshrinking rate can be accurately detected online, and the deviation between the actually-measured preshrinking rate and the target preshrinking rate can be avoided or greatly reduced.

The invention discloses a calculation method of the yarn feeding amount a positive yarn feeding mode of a circular weft knitting machine. By calculating the yarn length of a certain number of knittingneedle knitting loop structures, a yarn storage wheel can change the yarn feeding amount according to the yarn length needed by knitting in the knitting process, it is ensured that the tension is constant when yarns enter a knitting area, the size difference between the same loops is reduced, patterns can be clearer, the cloth cover is flatter, and the quality and aesthetic degree of a fabric aregreatly improved.