61results about How to "High transmission accuracy" patented technology

The invention belongs to the technical field of high-frequency signal transfer, and particularly discloses a high-frequency signal transfer board which comprises a transfer circuit board and a connecting piece, and the connecting piece is further provided with a slot used for fixing a high-frequency connector. The switching circuit board is provided with a plurality of photosensitive board contact points, a plug hole and a high-frequency signal transmission microstrip line, the photosensitive board contact points are connected with a joint of the photosensitive board, a pin is arranged in the plug hole and used for connecting the high-frequency connector and the high-frequency signal transmission microstrip line, the other end of the high-frequency signal transmission microstrip line is connected with the photosensitive board contact points, and the other end of the high-frequency signal transmission microstrip line is connected with the photosensitive board contact points. The bottom of the pin is clamped with the high-frequency connector, and the side wall of the pin is in interference fit with the plugging hole. According to the invention, the switching circuit board is fixedly connected with the connecting piece, and the plugging hole with the circular truncated cone structure is formed in the switching circuit board, so that reliable connection between the pin and the plugging hole is ensured, and as the high-frequency signal transmission microstrip line is connected with the high-frequency connector in a plugging manner, echo is avoided, and the signal switching precision is improved.

The utility model discloses a double-stroke material carrying device, and relates to the technical field of material conveying. Sliding assemblies are arranged between an upper fork and a middle fork and between the middle fork and a lower fork of the device respectively, so that the upper fork is in sliding connection with the middle fork in the X-axis direction, the middle fork is in sliding connection with the lower fork in the X-axis direction, and a linkage mechanism is used for synchronously driving the upper fork to slide in the middle fork in the X-axis direction when the middle fork slides in the lower fork in the X-axis direction. The stable sliding of the upper fork on the middle fork in the X-axis direction and the stable sliding of the middle fork on the lower fork in the X-axis direction are achieved through the sliding assembly, shaking among the upper fork, the middle fork and the lower fork in the sliding process is effectively avoided, the transmission stability and the transmission accuracy are greatly improved, and when the middle fork slides on the lower fork in the X-axis direction, the transmission efficiency is greatly improved. The linkage mechanism synchronously drives the upper fork to slide in the middle fork in the X-axis direction, linkage of the upper fork, the middle fork and the lower fork is achieved at low cost, the cost of the whole machine is greatly reduced, and economic applicability is improved.

The utility model provides an intelligent inspection robot transmission system which comprises a steering engine assembly, a shock absorber assembly and a driving assembly, and a hub rotating support shaped like a Chinese character'wang 'is arranged between the driving assembly and the steering engine assembly and located on the front end side of the driving assembly. The shock absorber assembly is connected with the rear upper end of the hub rotating support shaped like the Chinese character'wang 'and the rear end side of the traveling assembly, a joint motor is adopted for a horizontal driving part of the steering engine assembly, and a servo motor is adopted for a front-back driving part of the traveling assembly. By adopting the mode that the joint motor controls the transmission system to steer and the spline is matched with and fixes the joint motor, steering integrated control is added, the transmission accuracy is improved, the risk that the joint motor is exposed and is prone to damage is reduced, the requirement for the space size of a chassis is reduced, the structure is more compact, and rapid mounting and dismounting are convenient; the steering engine assembly and the walking assembly are independently designed, so that the whole transmission system meets the national II-class anti-explosion requirement and the IP66 / 68 sealing grade requirement.

The embodiment of the invention relates to the technical field of semiconductors, and provides a memory cell structure, a memory cell array structure and a manufacturing method thereof.The memory cell structure comprises a grid electrode extending in the first direction, the grid electrode is provided with a first face and a second face which are opposite, and the second face is provided with a first concave face and a second concave face which are arranged at intervals; the first concave surface and the second concave surface are both concave towards the first surface; the gate dielectric layer at least covers the second surface in a shape-preserving manner; the semiconductor layer covers the side, away from the grid electrode, of the grid dielectric layer in a shape-preserving mode, the semiconductor layer is provided with a contact face right opposite to the second face, and the contact face is provided with a third concave face corresponding to the first concave face and a fourth concave face corresponding to the second concave face; comprising a lower electrode layer, an upper electrode layer and a capacitor dielectric layer located between the upper electrode layer and the lower electrode layer, and the lower electrode layer is in contact connection with the third concave surface; the bit line structure is in contact connection with the fourth recessed surface. The electrical performance of the storage unit structure can be improved at least.

The invention provides a valve conveying system and an operation method, the valve conveying system comprises a catheter assembly, a driving device and a rope locking assembly, the catheter assembly is connected to the driving device, the rope locking assembly is connected to the near end of the driving device, the valve conveying system is provided with a containing cavity, and the catheter assembly, the driving device and the rope locking assembly penetrate through the containing cavity; when the valve is loaded, a pull rope of the valve penetrates through the containing cavity, the rope locking assembly locks the end of the pull rope, and the driving device can drive the valve to move into the catheter assembly. When the valve is released, the driving device is driven to enable the valve to move out of the containing cavity and to be released at a designated position, and the rope locking assembly unlocks the end of the pull rope. According to the valve conveying system, the functions of loading, delivering, positioning, recycling and the like of the prosthetic valve can be achieved through active driving, the structure is simple, the response speed is high, operation is stable, the control precision is high, and the operation efficiency of an operator is improved.

A workpiece transfer method is for transferring a workpiece when bending of the workpiece is performed by a press brake including a die that supports the workpiece and a punch that is located above the die and presses the workpiece supported by the die, the workpiece transfer method including, before or after the bending: moving an upstream transferrer in a transfer direction of the workpiece while pushing the upstream transferrer against an end of the workpiece, the upstream transferrer being located on an upstream side with respect to the press brake in the transfer direction, the end of the workpiece being an upstream end in the transfer direction; and supporting the workpiece from below by a support in conformity with a shape of the workpiece after pressing of the workpiece by the punch, and intermittently transferring the workpiece in the transfer direction, the support being located on a downstream side with respect to the press brake in the transfer direction.

The utility model relates to a conveying mechanism and a rotary workbench. The conveying mechanism comprises a first mounting frame, transmission roll paper, a rolling shaft and a motor, the motor is fixedly mounted on the first mounting frame, and an output shaft of the motor is connected with the rolling shaft; the transmission roll paper is laid on the top face of the first installation frame, the two ends of the transmission roll paper are fixedly connected with the rolling shaft, and the rolling shaft is arranged in the first installation frame and used for rotating under driving of the motor and driving the transmission roll paper to move. The area, located on the top face of the first installation frame, of the transmission roll paper is used for containing a photovoltaic cell panel. According to the conveying mechanism and the rotary workbench, a speed reducer is omitted, the conveying efficiency and the conveying precision are improved, and the cost of the conveying mechanism is reduced.

The utility model discloses a reversible carton printing machine, which comprises a frame, a printing device and a conveying device, and further comprises a turnover device, the turnover device comprises a conveying mechanism, a fixed block, a transmission shaft and a turnover block, the conveying mechanism is fixedly connected to the side wall of the frame, the fixed block is fixedly connected to the top wall of the frame, and the transmission shaft is fixedly connected to the turnover block. The inner wall of the fixing block is in transmission connection with a transmission shaft, the outer wall of the transmission shaft is fixedly connected with an overturning block, one end of the transmission shaft is in transmission connection with a conveying mechanism, the top wall of the rack is in transmission connection with a conveying device, and the top wall of the conveying device is fixedly connected with a printing device. According to the scheme, the novel structure is utilized, the overturning device and the printing device are arranged, double-face printing is achieved, the production efficiency is improved, and the labor cost is saved.

This application discloses a scanning electron microscope device, comprising: an electron gun, the cavity of which is electrically connected to a first reference voltage terminal; a detector disposed inside the cavity of the electron gun and electrically connected to the first reference voltage terminal; an amplifier, the input terminal of which is electrically connected to the output terminal of the detector and electrically connected to the first reference voltage terminal; and an analog-to-digital converter (ADC), the input terminal of which is electrically connected to the output terminal of the amplifier, a first terminal of the ADC's power supply being electrically connected to the ADC, and a second terminal of the ADC's power supply being electrically connected to a second reference voltage terminal. The aforementioned scanning electron microscope device can improve the quality of semiconductor images generated by the scanning electron microscope.

The utility model discloses a double-layer feeding mechanism which comprises a door frame, a camera, a deviation rectifying assembly, a guide rail assembly and a chuck assembly. The camera is arranged in the middle of the upper side of the door frame; the deviation rectifying assembly is fixed to the lower side of the door frame. The guide rail assembly comprises a first guide rail group and a second guide rail group; the first guide rail group is arranged above the second guide rail group; the chuck assembly comprises a first chuck group and a second chuck group; the first chuck group is arranged on the first guide rail group and can horizontally move on the first guide rail group; the second chuck group is arranged on the second guide rail group and can horizontally move on the second guide rail group; materials are fixed by the deviation rectifying fixing clamp, and after the materials are detected and rectified by the material overlapping detection assembly, the materials are fixed by the first chuck group and are transferred to the second chuck group to be conveyed to the next station. Or the first chuck group is used for clamping and directly feeding. The overall transmission efficiency is high, and the transmission stability is high.

The present invention relates to the field of transformer core production and manufacturing equipment, specifically, to a transformer core intelligent cutting and stacking manufacturing center. An intelligent cutting host for iron cores based on high-speed electric servo swing shearing is used to realize the automatic cutting of yoke iron cores, phase column side column pieces, and middle column pieces; a gantry-type iron core intelligent stacking host is used to realize the automatic stacking and stacking of the set positions of each finished iron core piece. The intelligent cutting host for iron cores realizes the automatic cutting of yoke iron cores, phase column side column pieces, and middle column pieces through an automatic silicon steel coil unwinding device, a fixed-length feeding device, a positioning hole punching device, a notch punching device, a strip side guide device, a high-speed electric servo swing cutting device, and an integral bed. The present invention provides a device that can realize online one-time automated production from transformer silicon steel coils to finished transformer cores, with the main purpose of releasing labor, improving core quality and production efficiency, and reducing core energy consumption.

This application provides a data transmission method and apparatus, to improve transmission accuracy of a response message. The method includes: receiving, by a network device, uplink data sent by a terminal device based on a grant-free manner; and sending, by the network device, a response message for the uplink data to the terminal device according to a type of the response message for the uplink data, where the type of the response message for the uplink data is a first response type or a second response type, the first response type is that each time the terminal device sends the uplink data, the network device sends the response message for the uplink data to the terminal device once, and the second response type is that after the terminal device sends the uplink data for a plurality of times, the network device sends, to the terminal device once, the response message for the uplink data that is sent for the plurality of times.

The utility model provides a kind of vacuum mechanical arm power transmission device, comprising: first pulley, and the opposite side of its first outer circumferential surface is equipped with first fixed anchor point and is equipped with movable adjustable movable anchor point by a tension adjusting component;Second pulley, and the opposite sides of its second outer circumferential surface are equipped with second fixed anchor point respectively;First synchronous belt, for open loop belt, one end is connected and fixed in movable anchor point, after the other end is wound around the partial circumferential surface of first pulley and the partial circumferential surface of second pulley, is connected and fixed in one of second fixed anchor point;Second synchronous belt, for open loop belt, one end is connected and fixed in first fixed anchor point, after the other end is wound around the partial circumferential surface of first pulley and the partial circumferential surface of second pulley, is connected and fixed in another second fixed anchor point.The utility model adjusts the position of movable anchor point by a tension adjusting component, and the tension of first synchronous belt and second synchronous belt is adjusted by the adaptive rotation of second pulley, and the transmission accuracy is improved.

The application belongs to the technical field of signal transmission, and discloses a method for eliminating analog signal transmission error through digital compensation, which specifically comprises the following steps: in addition to the original signal transmitting circuit part, a signal detecting part composed of MCU, ADC and a communication module is arranged at the signal transmitting end; a signal detecting part composed of MCU and ADC communication module and a control part capable of controlling the signal at the output end to be offset and gain varied are arranged at the signal receiving end; the signal at the receiving end is collected by the MCU to compare with the data of the transmitting end communication module, and the difference between the two data is calculated to obtain the correction value of the amplitude and offset; the gain and offset of the signal are changed by controlling the offset and gain circuit part at the receiving end, so that the transmission error is eliminated, and the gain and offset control method is realized by using DAC, PGA and other components; the deviation of the frequency response can also be calculated according to the requirement, and is corrected by the gain and offset control circuit part.

The invention discloses an optimization method in a discrete data transmission process of a motor. A conjugate gradient method is used to process the encoded discrete data at the motor input end and the decoded discrete data at the motor output end during the transmission process. The discrete data are the angles measured by the inner ring of a motor magnetic encoder and the angles measured by the outer ring. The angles measured by the inner ring of the magnetic encoder are the encoded discrete data at the input end during the transmission process. The decoded discrete data at the output end calculated by a function model is compared with the original decoded discrete data at the output end, thereby solving the measurement deviation of the inner and outer ring positions of the magnetic encoder using two sensors. A function model is established, and the angle measured by the inner ring is substituted into the function model for calculation and converted into the outer ring angle. The data error precision is reduced, the bit error rate BER is reduced, the discrete data transmission time is reduced, the transmission precision is improved, the transmission anti-interference ability is improved, and the data transmission speed is improved and the response is accelerated during the transmission process.

The invention provides a bag storage bin and a bag taking mechanism, and relates to the technical field of prefabricated bag storage mechanisms of packaging machines. The bag storage bin and bag taking mechanism comprises a bag storage bin mechanism body, the bag taking mechanism body and a belt conveying mechanism, the bag storage bin mechanism body comprises a bag bin support, driving shafts are fixedly arranged at the positions, close to the lower ends, of the two sides of the bag bin support through plummer blocks, the driving shafts are connected with driving synchronizing wheels through keys, and driven shafts are fixedly arranged at the positions, close to the upper ends, of the two sides of the bag bin support. A horizontal bag bin is changed into a vertical bag bin through a mechanical transmission mode of combining a servo motor with a synchronous belt, a connecting rod and negative pressure belt conveying, the space is greatly saved, the workshop layout is optimized, meanwhile, the bag bin is arranged at a sealing position, a connecting rod mechanism is used for taking bags, the bag taking speed is increased, the negative pressure belt conveying mechanism is used, and the bag taking efficiency is improved. The position of the bag can be accurately controlled, the mechanical position does not need to be changed during model changing, convenience is achieved, and production efficiency and equipment stability are greatly improved.

The invention discloses a flexible reciprocating conveying mechanism, which relates to the technical field of automobile automated manufacturing, and comprises a vehicle body lifting and conveying unit, a servo motor transmission unit, a vehicle body laser detection unit, an NC fixture unit and a PLC control unit; a transmission gear of the servo motor transmission unit meshes and transmits with a transmission rack of the vehicle body lifting and conveying unit, the transmission rack is connected with a slide, and drives the slide on the vehicle body lifting and conveying unit to slide forward and backward; the vehicle body laser detection unit is used for scanning and detecting the data of an imported whole vehicle body; the PLC control unit retrieves the corresponding operation program according to the imported vehicle model data, controls the vehicle body lifting and conveying unit to lift the whole vehicle body through the lifting components on the slide, and transports the whole vehicle body to a corresponding work station, the NC fixture unit at the work station is used for lifting the whole vehicle body, and cooperates with the operation procedure at the corresponding work station to perform the operation, thereby solving the problems of large accuracy variation, low stability and low vehicle model import compatibility of existing conveying equipment.

The invention discloses a pipetting tip filter element assembly technology, and aims to provide filter element assembly equipment and an assembly method thereof. The vibrating disc structure comprises a vibrating disc for accommodating and vibrating a filter element to be treated and a discharging channel which is connected with the vibrating disc and is used for orderly arranging the filter element according to a set direction and sequentially sending out the filter element; the feeding groove is used for containing the pipetting suction head, and an opening of the pipetting suction head faces the direction of the push rod device; the first conveying device is used for conveying the pipetting tips to the second conveying device one by one from the feeding groove; the second conveying device is used for sequentially receiving the pipetting tips and conveying the pipetting tips to the finished product collecting frame; the moving structure is arranged on the second conveying device and is used for lifting up / putting down the pipette tip conveyed to the appointed position from the second conveying device; a slider structure; a push rod device; a finished product collecting frame; a control system; an alarm module; the invention is suitable for the technical field of pipette tip filter element assembly.

The invention discloses an AR textbook management system, which comprises a textbook picture acquisition module, a textbook picture processing module, a textbook picture feature point extraction module, a feature point matching module, a material matching calling module and an AR scene caching module, the parent-child relationship is established between the material picture and the AR scene, and the material picture and the AR scene are managed and stored through the parent-child relationship, so that the AR scene can be directly called when the teaching material picture and the material picture are successfully matched, the efficiency is improved, and when the AR scene is called, the user experience is improved. The multiple AR scenes are synchronously cached through the synchronous cache, so that the calling efficiency of the subsequent AR scenes is improved, other AR scenes are locked through the lock when the AR scenes are called, the transmission efficiency of the AR scenes is improved, and the multiple AR scenes are prevented from influencing the called AR scenes.

The utility model discloses a kind of clamping jack and its whole bundle cable threading machine, it is related to the steel strand cable threading technical field of construction, bridge cable-stayed cable construction engineering, it includes cylinder body and piston rod of one end sliding connection in the cylinder body and the other end stretches out the cylinder body outside, the end of the cylinder body that stretches out piston rod is connected with barrel clamping head, steel strand transmission channel is radially equipped in the middle of this clamping head, the piston rod stretching out end is connected with clamping fork, the clamping fork is installed in the movement channel that is axially equipped in the clamping head, the clamping head is installed with steel strand inductor, compared with prior art, the utility model realizes accurate clamping to steel strand, improve the friction with steel strand, avoid the cable threading slip, can improve the reliability of steel strand compression, also can be used for cable threading different specifications whole bundle steel strand, improve the applicability of cable threading machine.

The present disclosure provides a warped wafer transfer method and device, the method comprising: taking out a warped wafer from a first slot of a magazine by a Bernoulli arm and transferring it to a SUBCHUCK device; transferring the warped wafer, which has performed a pre-alignment operation, to a pre-calibrated loaded wafer position W2 by the Bernoulli arm, vertically moving a worktable to a pre-calibrated wafer handover height H1, opening a worktable vacuum, closing a Bernoulli arm blowing, and making the warped wafer fall onto the worktable; horizontally moving the worktable to a pre-calibrated auxiliary blowing position W3, opening an auxiliary blowing system located above the warped wafer, and making the warped wafer uniformly adsorbed onto the worktable. The transfer method and device provided by the present disclosure can improve the transfer efficiency of the warped wafer.

This utility model discloses an auxiliary positioning device for a medium- and high-voltage electronic aluminum foil corrosion production line, relating to the field of aluminum foil corrosion production technology. It includes a tank body with a positioning mechanism fixedly installed in the middle, and side guide rollers fixedly installed at both ends of the tank body. Using this structure, the auxiliary positioning device drives the slide and plate to move vertically via a screw, precisely adjusting the depth of the pressure roller's immersion in the electrolytic cell. This adapts to different thicknesses of aluminum foil and electrolyte concentrations. Simultaneously, the limiting discs at both ends of the pressure roller and side guide rollers, with their spacing adjusted by hand-tightening screws, effectively constrain the lateral displacement of the aluminum foil. The combination of these two components ensures that the aluminum foil is conveyed centered along a preset path, avoiding deviation and friction with the electrode plate, reducing surface damage, and ensuring that the contact angle and area between the aluminum foil and the electrolyte are always optimal. This significantly improves corrosion uniformity and conveying accuracy, and reduces the scrap rate.

The invention discloses a vacuum cooler power-assisted feeding and discharging system which comprises a rack, a conveying track, a pushing device, a conveying chain device and a lap joint device, the pushing device is arranged on the rack in a sliding mode, the conveying chain device is connected with the pushing device, the conveying chain device drives the pushing device to move along the rack, and the lap joint device is arranged on the rack. The material pushing device pushes the material box to move along the conveying track in the moving process, the conveying track and the track in the vacuum cooling machine are connected in a lap joint mode through the lap joint device, and the material box is transferred to the track in the vacuum cooling machine from the conveying track in a transition mode. The feeding and discharging system can assist in feeding and discharging of the material box into and out of the vacuum cooling machine, so that the feeding and discharging efficiency is effectively improved, the feeding and discharging accuracy is guaranteed, the whole system is easy to operate, and only the material box needs to be placed on the conveying track. The system drives the pushing device to move through the conveying chain device to achieve the automatic pushing and conveying process, the automation degree is high, the labor cost is effectively reduced, and the production efficiency is improved.

The utility model discloses a non-contact silicon wafer transmission track, which comprises a driving servo motor, a non-contact track, silicon wafer guides, a synchronous belt with bosses and a silicon wafer main body, the driving servo motor supplies power to the non-contact track, and the silicon wafer guides are arranged on two sides of the non-contact track. A synchronous belt with a boss is arranged in a gap between the non-contact tracks, a silicon wafer main body is arranged on the silicon wafer guides, and a barometer is arranged on the side surface of the silicon wafer main body. Smooth rotation of the guide can guarantee that the whole conveying track is stable and does not shake in the conveying process, silicon wafer bodies are conveyed through friction force, the whole track can be jacked by the lifting air cylinder to be guided in the middle to be switched into conveying of single silicon wafer bodies, and the whole conveying track is wider in application range and better in compatibility.

The utility model provides a bushing press fit mechanism and assembly equipment, it includes: at least two locating subassembly, locating subassembly includes pusher, feeding pipeline and locating slot, pusher includes mounting plate and bushing push rod, mounting plate one end is equipped with blanking hole, bushing push rod moves towards / far away blanking hole, and the locating slot is located in the blanking hole. The feeding pipeline is arranged between the bushing push rod and the blanking hole, and the positioning groove is arranged around the blanking hole; and the pressing assembly is arranged above the blanking holes and comprises at least two pressing columns, the at least two pressing columns and the at least two blanking holes are arranged in a one-to-one correspondence mode, and the pressing columns move towards / away from the corresponding blanking holes. According to the mechanism, a series of automatic operations such as feeding, conveying, positioning and pressing of the linings can be achieved, the conveying precision is high, the pressing effect is good, meanwhile, the machining speed can be increased, the overall machining efficiency of a production line is improved, and in addition, the mechanism has the advantages of being simple in structure, convenient to operate, low in production cost, small in occupied space and the like.

The invention provides a voltage transmission circuit, a circuit system and electronic equipment, which are used for transmitting a first voltage and outputting a second voltage, and the circuit comprises a maintaining unit, a switch control module and an operational amplifier module, the switch control module controls the first voltage to charge the maintaining unit in the sampling stage, and controls the maintaining voltage of the maintaining unit to be output to the output end of the operational amplifier module in the maintaining stage. According to the virtual disconnection principle of the non-inverting input end and the inverting input end of the operational amplifier module, electric leakage of the maintaining unit is avoided, so that the maintaining voltage is equal to the second voltage. As the in-phase input end of the operational amplifier module is grounded, the input offset voltage of the operational amplifier module is fixed and reduced, so that the second voltage only changes along with the change of the maintaining voltage, and the transmission precision of the voltage transmission circuit to the first voltage is improved; and the cost of circuit trimming for reducing the input offset voltage is also reduced.

This utility model discloses an aircraft engine temperature detection device, including a first thermocouple, a second thermocouple, a third thermocouple, a fourth thermocouple, and an ECU unit. It also includes: an intermediate connecting assembly, with the first, second, third, and fourth thermocouples respectively connected to the intermediate connecting assembly, which is connected to the ECU unit; a first adjustable resistor for correcting temperature signal offset errors, located within and connected to the intermediate connecting assembly; and a second adjustable resistor for correcting temperature signal gain errors, also located within and connected to the intermediate connecting assembly. This utility model can improve signal transmission accuracy.

The invention discloses a cased well ground signal two-way wireless electromagnetic transmission device and method, and belongs to the technical field of oil and gas field development logging, the cased well ground signal two-way wireless electromagnetic transmission device comprises an underground terminal system, a metal loop transmission channel and a ground terminal system, the metal loop transmission channel is a closed metal loop constructed with an oil pipe and a casing as carriers, and the metal loop transmission channel is a closed metal loop. The underground terminal system is sequentially and electrically connected with a first centralizer, an ascending transmission short section, a packer, a descending transmission short section, a sensor integration short section and a second centralizer from top to bottom along the axis of a casing pipe, and the first centralizer and the second centralizer are made of conductive rubber materials. The oil pipe and the sleeve are electrically conducted to construct the closed metal loop, the oil pipe and the sleeve serve as carriers to construct a closed metal loop transmission channel, transmission media do not need to be additionally laid, the metal loop provides a low-loss transmission path for TM waves, signal attenuation is effectively reduced, and the transmission efficiency is improved. The problem of serious signal attenuation in a deep well in traditional wireless electromagnetic transmission is solved.

The utility model discloses a kind of reel transmission structures, it is related to reel transmission technical field, including driving sprocket and driven sprocket, the driving sprocket and driven sprocket are arranged in parallel, driving sprocket and driven sprocket are tensioned and provided with synchronous belt, the side coaxial fixed with one reel of driving sprocket, the same side coaxial fixed with two reels of driven sprocket, the wheel rim of one reel and two reels is evenly distributed with pin column convex column, the upper level of one reel and two reels is provided with flow channel plate, the flow channel plate is fixed in machine tool workstation by bolt mounting mode. The utility model is ensured that product can be strictly conveyed according to preset path and position by the cooperation of pin column convex column and product round hole, realizes accurate step type conveying.