339results about How to "Avoid blocking" patented technology

The invention discloses an anion exchange membrane electrode and a preparation method and application thereof, and belongs to the technical field of new energy material and catalytic electrode preparation, the method comprises the following steps: S1, preparing an anode catalyst slurry comprising a hydrophobic covalent organic framework material, an anode catalyst, an anion exchange ionomer and a solvent; s2, preparing a cathode catalyst slurry of which the components comprise a cathode catalyst, an anion exchange ionomer and a solvent; and S3, respectively spraying or coating the anode catalyst slurry and the cathode catalyst slurry on two side surfaces of an anion exchange membrane or a gas diffusion layer, and carrying out heat treatment to obtain the anion exchange membrane electrode. The method provided by the invention can solve the problems of large gas-liquid-ion three-phase mass transfer resistance, easy shielding of active catalytic sites by ionomers and unbalanced water management in the membrane electrode assembly in the existing AEMWE device.

This utility model relates to the field of ceramsite processing and discloses a jaw crusher-screening linked ceramsite raw material pretreatment device, including a base. A stationary jaw plate is fixedly connected to the left side of the top of the base, and a feed hopper is fixedly installed on the top of the stationary jaw plate. A flywheel is installed on the base, a drive motor is installed on the right side of the base frame, and a movable jaw plate is movably installed on the base frame. The movable jaw plate is fixedly connected to the flywheel at an eccentric position, and an elbow plate body is movably hinged to the left side of the movable jaw plate. In use, the ceramsite raw material can be fed into the jaw crusher through the feed hopper. During the feeding process, a fan can suck the dust inside the ceramsite raw material into the collection box through the dust suction port. The dust collection mesh inside the collection box can collect the dust. During the feeding process, the baffle and mesh plate can prevent the ceramsite raw material from impacting or blocking the dust suction port, thus solving the problem of large amounts of dust during crushing.

A biological medicine sample multi-channel friction access system comprises, from top to bottom, a sample bottle friction access mechanism, a sample bottle storage unit, an automatic sealing mechanism, a gas conveying mechanism and a transition transfer mechanism, which are sequentially arranged from top to bottom. The sample bottle friction access mechanism, the sample bottle storage unit, the automatic sealing mechanism and the gas conveying mechanism are sequentially arranged from top to bottom. The sample bottle friction access mechanism comprises a support, a sample bottle access unit and a sample bottle access driving mechanism. The sample bottle access driving mechanism drives the sample bottle transfer channel or the sample bottle storage channel in the sample bottle access unit to be docked with the sample bottle storage unit, or drives the sample bottle storage channel to be docked with the transition transfer mechanism. Each part constitutes a closed sample bottle storage and access system in a temperature control box. The sample bottle containing samples is stored in the sample bottle storage unit. The system realizes closed and efficient storage and batch rapid extraction of samples in an ultra-low temperature environment.

The utility model relates to a kind of exhaust structure of motor gear box for vehicle, including exhaust valve in gear box, labyrinth, backflow plate and several baffle, backflow groove is formed between backflow plate and gear box inner wall, baffle makes several intercommunicating chambers in gear box, chamber is between labyrinth and backflow groove, chamber is communicated with backflow groove, chamber is also communicated with labyrinth, exhaust valve is communicated with labyrinth, backflow groove is equipped with backflow port with gear box interior communication in both ends, oil liquid into chamber can flow through backflow groove and return in gear box, after the air pressure in gear box rises, gas is discharged from exhaust valve via labyrinth.The utility model is by being equipped with baffle, reduce the oil liquid that splashes when gear rotates enters labyrinth, also reduce the oil liquid reaching labyrinth entrance, effectively avoid the oil leakage situation of exhaust valve, oil liquid in chamber flows through backflow groove and returns in gear box, reach the effect of oil liquid backflow;Gas can avoid gear box oil leakage after being discharged.

The utility model discloses an ecological vegetation restoration planting frame, which belongs to the technical field of ecological vegetation planting and comprises a frame body, a soil fixing net and a pipeline group. Wherein the frame body is provided with an upward opening, the non-opening surface of the frame body is provided with a channel for water and soil to pass through, the soil fixing net covers the channel, the pipeline group is buried in the frame body, the pipeline group comprises a main pipeline and an auxiliary pipeline, the main pipeline and the auxiliary pipeline are communicated with each other, and a plurality of uniformly distributed vent holes are formed in the main pipeline and the auxiliary pipeline. The utility model has the advantages that the soil fixation net can intercept silt to form preliminary filtration; the pipeline group forms an air gallery positioned in the frame body, so that root systems of plants planted in the planting frame can obtain good ventilation; the two are combined to realize efficient balance of water and soil conservation and root system ventilation.

The utility model discloses a high-precision dynamic balance compensation device for a grinding disc, relates to the technical field of grinding processing equipment, aims to solve the problems of unsmooth feeding and influence on efficiency caused by easy inclination and unbalance of materials during automatic feeding in the prior art, and comprises a base, a circulating water tank, a material disc, a grinding disc, a feeding table and the like. The compensation device is arranged on the feeding table support and comprises a two-way threaded rod, a connecting plate, a sliding guide rod and a clamping plate, the two-way threaded rod is driven to drive the clamping plate to move, and the position of materials in the feeding table is adjusted or fixed. And it is guaranteed that the materials smoothly and stably fall into the material holes, and the continuity of grinding work and the production efficiency are improved.

This invention discloses a wide-interlayer-spacing molybdenum disulfide catalyst, its preparation method, and its application, belonging to the field of water electrolysis for hydrogen production energy conversion technology. The preparation method includes the following steps: preparing a molybdenum disulfide precursor solution using a molybdenum source and a sulfur source; then subjecting the molybdenum disulfide precursor solution to a hydrothermal reaction with a carbon-containing interlayer-spacing regulator; and obtaining the wide-interlayer-spacing molybdenum disulfide catalyst after centrifugation and washing. The carbon-containing interlayer-spacing regulator is used to insert into the interlayer of molybdenum disulfide during the hydrothermal reaction, increasing the interlayer spacing of the (002) crystal planes of the obtained molybdenum disulfide catalyst. The wide-interlayer-spacing molybdenum disulfide catalyst of this invention facilitates electrolyte penetration and hydrogen bubble release, effectively avoids active site blockage, enhances the intrinsic conductivity of the catalyst, accelerates internal charge transport, increases active sites for hydrogen evolution reaction, and improves the intrinsic hydrogen evolution catalytic activity of the catalyst.

The utility model relates to an electric heating structure of a solid coating machine, which is mounted in an air inlet formed by an equal-diameter pipe and a reducer pipe, one side wall of the reducer pipe is provided with a mounting hole, the periphery of the mounting hole is provided with a limiting frame, and the limiting frame is detachably connected with a cover plate for sealing the mounting hole; an electric heating pipe is arranged on the cover plate, the electric heating pipe penetrates through the mounting hole and extends into the reducer pipe, an air uniformizing assembly is further arranged on the cover plate, the electric heating pipe is covered with the air uniformizing assembly, and a gap exists between the air uniformizing assembly and the electric heating pipe; hot air flows into the reducer pipe from the equal-diameter pipe, sequentially passes through the air uniformizing assembly and the electric heating pipe and then enters the coating machine. Temperature can be compensated in real time through the electric heating pipe, and it is ensured that hot air enters the coating machine at the set temperature.

The present application relates to copper nickel ore sorting technical field, specifically for low grade copper nickel ore combined sorting device and process, including heavy plate feeder, the output end of heavy plate feeder is connected with short distance closed belt conveyor, the present application can separate 87.7% of invalid gangue components in advance after the whole set of combined sorting process is put into operation, reduce the material volume of flotation section from the source, the reagent dosage and water and electricity energy consumption are reduced synchronously, effectively reduce the processing cost of low grade copper nickel ore, significantly improve the production profit level of the project, the waste rock produced by sorting is used as underground filling aggregate after fine crushing, which replaces the purchased gobi sandstone raw material, achieves closed loop utilization of solid waste resources, and meets the green mine development and construction guidelines.

The invention relates to the technical field of data transmission, in particular to a processing and risk assessment method and device for mass files and asset data and a medium, and the method comprises the steps: dividing to-be-processed mass files and asset data into a plurality of data clusters; based on a duration evaluation algorithm and a risk evaluation model, calculating the expected total processing duration and the risk level of each data cluster, and processing each data cluster according to the expected total processing duration and the risk level; performing real-time feature extraction and vectorization representation on the asset data, and matching asset features with a risk information feature library to identify and evaluate the risk of the asset features; when it is monitored that the data cluster transmission state or asset data analysis is abnormal, an auxiliary processing thread is started to continue executing the next task in the data cluster, the average processing speed of the corresponding data cluster is updated, and the total processing duration of the remaining tasks is evaluated again. Therefore, the data processing efficiency and the data security of the power system are improved.

The utility model discloses a kind of foam blocking devices for indirect evaporative cooling unit liquid level sensor, including blocking component and auxiliary assembly, blocking component includes foam blocking cover, blocking part one and blocking part two, auxiliary assembly includes adjusting component and mounting component, by blocking component and auxiliary assembly cooperation, can effectively block foam, prevent foam contact liquid level sensor's probe, improve measurement accuracy, the structure design of device side plate bottom hole ensures that liquid flows freely, does not affect the normal work of liquid level sensor, and the device structure is simple, easy to install, applicable to various liquid level sensors.

The utility model provides a full -automatic high pressure flush equipment of spinneret, belongs to spinneret washing equipment technical field. It solved the problem that the existing washing equipment can cause the hole on the spinneret to be blocked. A full -automatic high pressure flush equipment of spinneret of the utility model includes support, water spray pipe, moving frame, axle body, loading disc, driving part, transmission part and push away subassembly. The full -automatic high pressure flush equipment of the utility model is when washing to spinneret, because spinneret is located the upside of water spray pipe, and spinneret installs on loading disc in the way of upside -down, like this, the iron filings, impurity etc. on spinneret directly drop down due to gravitational potential in the flush process, avoid the iron filings or impurity to block the hole on spinneret.

The utility model discloses a kind of fixed tool for motor shell processing, comprising: tool body, double clamping assembly;Tool body includes the lower box of lower end, the upper cover plate of the upper end of lower box through screw movable installation, the control box of the front end fixed installation of lower box.The utility model said a kind of fixed tool for motor shell processing, the inner movable disc and outer movable frame installed in tool body inner and outer end, motor shell workpiece can be respectively clamped in inner end and outer end, to ensure its stability in motor shell workpiece processing, simultaneously, motor shell workpiece in clamping is processed in inner end or outer end, corresponding clamping device in its processing part can also be moved down, to contract to lower box, to avoid forming obstruction to processing part, and inner movable disc or outer movable frame moves down and contracts, its top corresponding inner sealing plate or outer sealing plate can also be blocked to upper cover plate, so that the chip in processing falls into lower box.

The utility model relates to the technical field of concrete production wastewater circulation treatment equipment, in particular to a commercial concrete production wastewater circulation treatment device, which treats most solid impurities in wastewater in a slow flow sedimentation manner by arranging a slow flow sedimentation device, can prevent a machine from being blocked during filtration, and can effectively prevent the blockage of the machine during filtration. The machine purification efficiency is improved; comprising a body; the filter further comprises a slow flow sedimentation device, a plurality of discharging devices, a cyclone separation device, a filtering device and a backwashing device, the slow flow sedimentation device, the cyclone separation device and the filtering device are all mounted on the machine body, the plurality of discharging devices are all mounted on the slow flow sedimentation device, and the backwashing device is mounted on the filtering device.

The utility model relates to control cabinet technical field, and disclose an intelligent lighting system control cabinet, including the cabinet, the cabinet both sides side wall all are fixedly connected with filter plate, and the filter plate inner wall is installed with the heat dissipation subassembly, and the heat dissipation subassembly is used for the heat dissipation of cabinet, the cabinet side wall is installed with the anti -insect component, and the anti -insect component is used for preventing mosquito to enter the cabinet, the anti -insect component includes the rotary column, and the rotary column rotatory mounting is in the filter plate side wall, is located the cabinet side wall fixedly connected with the box in the upper portion of filter plate, and the box inner wall is fixedly connected with the baffle, and the box inner chamber has set up the liquid storage cavity and the pressurizing chamber respectively, this intelligent lighting system control cabinet, the liquid storage cavity of box inner chamber is equipped with the mosquito repellent, and the rotary column is driven to rotate, and the rotary column extrudes the sliding block and goes up, and the gas in the pressurizing chamber inner chamber is pushed to the liquid storage cavity, and further makes the mosquito repellent in the liquid storage cavity inner chamber to spray out to the filter plate place through pressure valve, can effectively avoid mosquito to enter the cabinet inner chamber through the filter plate.

The application provides a tower crane panoramic monitoring method and device based on double-ball machine cooperation and task driving. Image data of two physically eccentrically installed spherical cameras are projected to a common "virtual ball center" through geometric correction, so as to synthesize a complete panoramic spherical jigsaw puzzle with a view point located at the center of the tower body and logically diverging outward. This method naturally avoids the obstruction of the tower body structure to the line of sight, because the virtual view point is located inside the tower body and observes outward. At the same time, an intelligent recognition algorithm is introduced to automatically recognize risk objects, and a picture-in-picture scheduling of panoramic view + local high-definition large picture is formed by dynamically cooperating the double-ball machines according to the monitoring objects.

The invention relates to the technical field of thread extrusion machining, in particular to distribution shell multi-hole-site synchronous thread extrusion equipment which comprises a lifting drilling machine, a pull-down mechanism, a discharging mechanism, an elastic inner pushing mechanism and four detection columns, and the lifting drilling machine is provided with a multi-shaft device capable of vertically ascending and descending. Thread extrusion processing can be performed on the distribution housing. Before machining, the four round holes can be detected at the same time through the detection columns, and therefore the situation of tool collision is avoided. Meanwhile, before and after detection, the detection column can be moved through a pull-down mechanism, a discharging mechanism and an elastic inward pushing mechanism, so that the detection column is prevented from blocking when the distribution shell is mounted and taken out, and the distribution shell is convenient to mount and dismount. Moreover, when the distribution shell is taken out, the equipment can automatically eject the distribution shell upwards, and the situation that the distribution shell is difficult to take down due to tight clamping is avoided. In addition, when it is detected that the distribution shell is an unqualified product, the distribution shell can also be ejected out, and the distribution shell can be taken down conveniently.

This invention discloses a heterogeneous acceleration system and method for analog modulation recognition of large-scale multi-channel signals, comprising: a CPU host processing end and a GPU device computing end; the CPU host processing end is used for asynchronous pipelined processing of data reading, task scheduling, and result distribution, realizing parallel execution of data reading, GPU computing, and result distribution on the time axis; the GPU device computing end completes the entire process of signal preprocessing and deep learning model inference within the GPU memory after the original signal is transmitted to the video memory via the PCIe bus, and does not exchange data with the CPU host processing end until the recognition result is generated. This invention eliminates data transport and I / O blocking through a three-stage asynchronous pipeline architecture and a closed-loop processing link in the entire video memory, and combines parallel preprocessing operators, inference acceleration engines, multi-stream scheduling mechanisms, and dynamic video memory pools to achieve high throughput and low latency recognition of large-scale multi-channel analog modulation signals.

The application discloses a lossless and efficient data processing method and network interface card based on RMDA, and belongs to the field of data communication of a data center. When a large-scale QP is concurrent in the RMDA, the efficient scheduling processing problem of different QP requests is solved, the lossless request signal, the out-of-order QP request and the waste-free scheduling period are ensured, the scheduling fairness problem of different QPs is effectively solved in combination with congestion control, the blocking of other QP processing by a large message and the excessive number of requests needing to be processed in a single scheduling are avoided, and the head blocking problem is solved.

The present application relates to the technical field of coal conveying, in particular to a hanging belt conveyor for coal mine conveying, comprising a belt, the two sides of the belt being fixedly connected with supports, the present application is provided with a screening assembly inside the shell, during the sampling process, the motor starts to control the gradually opening of the opening and closing plate, so that the size of the coal entering the collection chamber inside is increased, at this time, the screening assembly screens, so that the collection bucket collects coal of each size with gradually increasing size each time, and too much coal of the same size is not collected, therefore, the design of the collection bucket will gradually open with the opening and closing plate and be screened by the screening assembly, so that the collection bucket can collect all the coal particles of various particle sizes on the belt, so that the detection assembly can detect coal of various sizes, and the detection accuracy is ensured.

This utility model discloses a stormwater drainage system for high-fill roadbeds, relating to the field of stormwater drainage technology. It includes stormwater pipes and inspection wells. Each inspection well comprises a foundation, well base, well cylinder, cast-in-place cylinder, pressure-bearing ring, and well cover. A guide channel is located at the center of the top surface of the upper boss. The inner cavity of the stormwater pipe is connected to the guide channel. The inspection well also includes a receiving bucket and a guide assembly. The guide assembly guides the stormwater flowing in from the well cover to the receiving bucket. The receiving bucket is used for sediment settling in the stormwater. The receiving bucket is press-fitted to the edge of the top surface of the upper boss. The inner wall of the well cylinder, away from the receiving bucket, is rotatably connected to the top of the guide assembly. The guide assembly can rotate until its bottom end overlaps the top of the receiving bucket. Stormwater flowing in from the well cover flows along the guide assembly into the receiving bucket, where sediment settles, before overflowing into the guide channel and stormwater pipe, preventing sediment from entering the stormwater pipe and thus avoiding blockage.

This utility model discloses a special mounting bracket for an electromagnetic diaphragm metering pump, including a vertical column angle steel, a supporting angle steel, a first frame, and a second frame. The vertical column angle steel is vertically arranged, and the first and second frames are respectively fixedly connected to the vertical column angle steel. The first frame is located above the second frame. The supporting angle steel is parallel to the vertical column angle steel, and the first and second frames are respectively fixedly connected to the supporting angle steel. The first and second frames are respectively provided with a first mounting angle steel and a second mounting angle steel. The first and second mounting angle steels are respectively provided with a first aluminum alloy mounting plate and a second aluminum alloy mounting plate. The projection of the first aluminum alloy mounting plate on the horizontal projection plane is staggered from the projection of the second aluminum alloy mounting plate on the horizontal projection plane. This utility model achieves the advantage of convenient and rapid movement of the electromagnetic diaphragm metering pump.

The utility model discloses a sheet production and processing conveying cleaning device, including the cleaning tank, and the left and right sides of cleaning tank are equipped with the opening and the front and back side inner wall fixedly equipped with washing shower nozzle, the upper end fixedly equipped with the linear slide groove of penetrating its left and right sides of cleaning tank, and the inside sliding of linear slide groove is equipped with two sheet hangers, and the inside of linear slide groove is equipped with the drive mechanism for driving two sheet hangers horizontal movement, and the bottom fixedly equipped with electric push rod of cleaning tank, and the piston end of electric push rod extends to the one end fixedly equipped with the standpipe of cleaning tank inside, and the surface of standpipe is connected and is equipped with a plurality of spray heads of even distribution, and the utility model discloses a linear slide groove, drive mechanism and two sheet hangers, after cleaning, drive mechanism drives two hangers to move, makes the sheet of good cleaning to remove the cleaning tank, and the sheet of waiting for washing enters the cleaning tank, and need not stop to complete the loading and unloading operation, and the continuity of cleaning process has been greatly improved.

This utility model discloses a material suction device and a material suction system. The material suction device includes a suction pipe and a support frame. The suction pipe has a suction port and a discharge port at its two ends, respectively. The support frame is disposed on the outer wall of the suction pipe and surrounds the perimeter of the suction port. The support frame is used to open the bag opening of the material bag and form a suction space communicating with the suction port at the bag opening. At least one arc-shaped chamfer is provided at the end of the support frame away from the discharge port. A first guide slope is also provided at the end of the support frame away from the discharge port. The support frame includes a first connecting surface and a second connecting surface arranged opposite each other along the radial direction of the suction pipe. The first guide slope is connected to the first connecting surface and / or the second connecting surface by an arc-shaped chamfer. The first guide slope is inclined towards the central axis of the suction pipe from the discharge port to the suction port, thereby preventing the support frame from obstructing the suction port and improving the material conveying effect and efficiency.

The invention discloses a short message sending method and device, equipment, a storage medium and a program product, and the method comprises the steps: segmenting short message service flow according to preset time slice configuration, and obtaining short message data under a plurality of time slices; performing rate segmentation on the plurality of channel resources according to a preset rate arrangement strategy and a thread concurrency number to obtain rate configuration of a plurality of threads of each channel resource; wherein the rate arrangement strategy is used for indicating rate configuration of each channel resource; binding the short message data with a plurality of threads so as to enable the threads to execute sending on the bound short message data in each time slice according to own rate configuration; according to time arrangement and careful division of the channel rate, the sending efficiency of a multi-short-message service large-batch sending scene can be improved, sudden surge short message data can be effectively dealt with, multi-short-message service channel blockage caused by short message backlog is avoided, and the success rate of short message service sending loss is improved.

The utility model discloses a chip removal device for machining center, include: tubular shell, the tubular bottom is located in the water tank of machining center, a plurality of installation storehouses are evenly provided with in tubular shell bottom, a plurality of through -holes are seted up in installation storehouse surface, the top of installation storehouse is provided with filter screen, reciprocating upper push -out plate is provided in installation storehouse inside. Utilize fine filter screen to replace the mesh board hole use, can block smaller cutting chip, avoid entering to the water tank inside and block it, ensure the normal use of water tank, and the upper push -out plate of upper shift can seal installation storehouse bottom and make the water flow up, thereby the smaller cutting chip on the filter screen is pushed away reversely and makes it follow the auger blade agitating water flow and discharges, avoids the filter screen and cannot normally work to be blocked.

The invention discloses a high-speed communication method based on an embedded instrument. The high-speed communication method comprises the following steps that S1, the instrument receives protocol data; s2, analyzing the protocol data, and extracting effective instructions in the protocol data; s3, setting an instruction buffer pool, and storing the effective instruction into the instruction buffer pool; s4, sending a protocol data receiving response to the test system; and S5, the instrument analyzes and responds to the effective instruction in the instruction buffer pool when the resource is idle, and then waits for receiving the instruction next time. According to the method, the cache thread is additionally arranged, so that temporary storage of the ASCII instruction after the instrument equipment completes VXI-11 unpacking is realized, and resource scheduling is facilitated to complete analysis and response of the ASCII instruction when the instrument is idle. Through the method, the instrument responds to the message when the resource is idle, and message blocking or instruction response failure caused by a high-priority task is avoided. The problems of instruction failure and error response during rapid receiving of instrument equipment during high-speed VXI-11 communication are effectively solved.

The utility model provides a kind of cotton opening machine cotton feeding device, including the cotton feeding groove being horizontally arranged and upper end opening, the upper end of one end of cotton feeding groove is connected with inlet channel, and the horizontal one end close to the middle of cotton feeding groove is provided with cotton feeding port in inlet channel, and the one end of cotton feeding groove and inlet channel is provided with inlet port away from cotton feeding port;Feeding conveyor belt is movably arranged in the cotton feeding groove, and the both ends of cotton feeding groove are rotatably connected with driving roller respectively located in the both ends of feeding conveyor belt, and the one end of cotton feeding groove is equipped with driving motor for driving driving roller rotation;Large transmission roller close to cotton feeding port and small transmission roller close to inlet port are rotatably connected in inlet channel, and large transmission roller and small transmission roller are matched with outer sleeve of material pressing conveyor belt, and the lower side of material pressing conveyor belt gradually approaches feeding conveyor belt from the direction of cotton feeding port to inlet port.The utility model can ensure that cotton material can be automatically and continuously fed into cotton opening machine, without manual intervention, reduce labor cost, and improve work efficiency.

The utility model relates to an anti -skidding protective pad and anti -skidding transfer bed belong to transfer bed protective pad technical field. It includes protective pad and disposable bed sheet. Protective pad middle part is provided with tension belt, and tension belt is used for fixing protective pad with the folding board of transfer bed, and the both sides of protective pad are fixed with slide strip, and protective pad can fold with the folding of folding board of transfer bed. Disposable bed sheet end part is provided with bag, that is, when the directional force of sealed part is applied, the blocking is realized due to the effect of pocket to prevent the bed sheet from sliding off, the effect of disposable bed sheet anti -skidding can be realized, and because disposable bed sheet does not have other non -replaceable structure and disposable bed sheet wraps protective pad completely, the bed sheet anti -skidding under the condition of keeping the sanitary requirement can be effectively guaranteed.

The utility model provides a kind of low-resistance ITO film slitting equipment, including round knife group, and one side of round knife group is provided with mounting rod, at least one group of slitting assembly is provided on the outside wall of mounting rod, for the secondary cutting of uncut film material, slitting assembly includes fixed plate slidingly connected on mounting rod, and one end of fixed plate is rotatably connected with transmission rod, and one end of transmission rod is provided with slitting knife, the cutting edge of each slitting knife is coaxially arranged with the cutting edge of each corresponding round knife, to ensure that the cutting position of uncut film material and slitting knife cutting position are completely coincident, the utility model is equipped with slitting assembly on one side of round knife group, and the cutting edge of slitting knife and corresponding round knife is coaxial, can be aimed at round knife blade wear, tension anomaly leads to uncut film material to carry out accurate secondary cutting, ensure that cutting position coincides, avoid tearing film material when winding due to tension accumulation, solve quality problem, improve yield, reduce cost.