81results about How to "Avoid time" patented technology

The utility model relates to a packaging box feeding mechanism which comprises a storage rack, a feeding mechanism, a feeding mechanism and a discharging mechanism. A plurality of packaging boxes are stacked on the storage rack. The conveying line is arranged on one side of the storage rack; the jacking module is arranged at the bottom of the storage rack and is suitable for driving the multiple packaging boxes to ascend and descend; a clamping module; after the clamping module clamps the packaging box located at the top of the storage rack and places the packaging box on the conveying line, the jacking module lifts the remaining packaging box by a distance equal to the thickness of the packaging box, and the remaining packaging box is to be clamped by the clamping module; through the arrangement of the jacking module mechanism, namely after the previous packaging box is clamped and placed on the conveying line, the jacking module drives the multiple packaging boxes to ascend to the thickness of one packaging box, clamping of the clamping module is facilitated, and therefore the clamping module does not need to descend in the packaging box clamping process, and the packaging box clamping efficiency is improved. And the descending time and the gradual increase of the descending stroke are avoided, so that the taking of the packaging box can be realized, and the descending stroke is reduced.

The invention provides a channel prediction method and system based on a multi-cycle feature convolutional network. According to the method, context sensing weighted input and a dynamic multi-model pool mechanism are introduced. A terminal device obtains environmental context features in real time, dynamically calculates the weight of each time step in a historical channel state information sequence based on the features, and generates a weighted optimized input sequence. Meanwhile, the network equipment pre-trains and maintains a plurality of multi-period feature convolutional network models specific to different environments, and the network can effectively capture the complex time-varying rules in the period and during the weeks in the channel, so that the accuracy of channel state information prediction is improved. And the terminal equipment immediately selects and activates the optimal sub-model in the model pool for prediction according to the real-time context features, and locally performs increment fine adjustment. According to the invention, through management of the data input end and rapid and adaptive switching of the prediction model end, the precision of channel prediction and the adaptive capacity to environmental sudden change are effectively improved.

The utility model relates to the technical field of drip irrigation tape recovery equipment, in particular to a drip irrigation tape support for drip irrigation tape recovery, which comprises an outer connecting pipe, one end of the outer connecting pipe is detachably connected with a first baffle, the outer connecting pipe is sleeved on an inner connecting rod, and the exposed end of the inner connecting rod is fixedly connected with a second baffle. The second baffle is fixedly connected with a fixing ring, the outer connecting pipe and the inner connecting rod are provided with through holes corresponding to each other in position, the through holes are close to the second baffle, the through holes are provided with clamps, and the clamps are connected with the fixing ring through pull ropes. And the recycled drip irrigation tape can be taken down conveniently, more convenience is achieved, and time and labor are saved.

The present application relates to a kind of decision tree ensemble training method and device based on differential privacy, the method and device of the present application are based on exponential mechanism to the feature needing privacy protection in training data is protected processing, based on laplace mechanism to the leaf node in local decision tree model after training is protected processing, avoid the problem of privacy data leakage caused by model reverse deduction.

The invention discloses a method for obtaining the thickness and refractive index of a film, a test system, a storage medium and application. The method for obtaining the thickness and the refractive index of the thin film comprises the following steps: obtaining an intermediate frequency signal carrying transmission phase information by using two groups of nonlinear transmission line terahertz frequency comb generators and a broadband mixer, and obtaining an actually measured phase curve based on the intermediate frequency signal; constructing an equivalent multi-optical-path interference model of the thin film, performing coherent superposition on multiple reflection components of a measured wave signal in the thin film in a complex field to obtain a complex phase of a total transmission field, and obtaining a phase-frequency change spectrum based on the complex phase as a model phase curve; and an error function of the model phase curve and the actually measured phase curve is constructed, and a parameter combination enabling the error function to take the minimum value is solved by scanning the parameter combination of the refractive index n and the thickness d of the thin film. According to the method, thermal drift or time drift of the phase is avoided, and then calculation errors caused by phase jump are avoided.

The invention discloses a coal sample division agent feeding and discharging structure, and belongs to the technical field of coal sample detection auxiliary equipment.The coal sample division agent feeding and discharging structure comprises a feeding pipe, an outer frame, a coal sample division storage module, an adjusting air cylinder, a material discarding module and a collecting barrel; according to the laser burning ash content detection device disclosed by the invention, a coal sample downwards enters the coal sample division storage module through the feeding pipe by virtue of the miniaturized feeding, discharging and division device, and the coal sample division receiving hopper is horizontally separated outwards and enters the existing laser burning ash content detection device by adjusting the air cylinder; and transferring is carried out through an internal mechanism. And the coal sample division receiving hopper resets to guide the residual coal samples back to the filling division hopper, and the discharging air cylinder drives the connecting rod to loosen the gate, so that the coal sample waste materials of the batch penetrate through the collecting pipeline to enter the collecting barrel. The automatic feeding, splitting and discarding operation of the coal sample can be realized, and the coal sample can be quickly, effectively and automatically provided for a measuring position.

The utility model belongs to the technical field of livestock breeding equipment, particularly relates to an excrement dry-wet separation and collection device for a cattle and sheep farm, and provides the following scheme aiming at the problems that a simple filter screen is adopted for filtering, and for cattle and sheep excrement with large viscosity, the filter screen is easy to block and the separation effect is influenced. The dry-wet feces separation and collection device for the cattle and sheep farm comprises a separation box, and a filter plate and a drainage plate are arranged in the separation box from top to bottom; the utility model has the beneficial effects that the hydraulic rod is connected with the drainage plate, and when the hydraulic rod is started to enable the drainage plate to rise, the top blocks on the surface of the drainage plate, which accurately correspond to the filter holes of the filter plate, can be inserted into the filter holes one by one, so as to quickly and effectively push out blocked impurities, and ensure that the filter plate always keeps good filtering performance; dry-wet preliminary separation is continuously and efficiently achieved, the overall separation efficiency is greatly improved, and the sewage drainage speed is increased through the inclined drainage channel.

The invention discloses a copper-silicon catalyst for plasma treatment as well as a preparation method and application of the copper-silicon catalyst. According to the method, a copper-silicon catalyst precursor prepared by a traditional ammonia distillation method is subjected to dielectric barrier discharge plasma treatment in the atmosphere of H2 / Ar and the like, and traditional high-temperature roasting and reduction processes are replaced. According to the method, efficient reduction and high dispersion of copper can be achieved at the room temperature, the Cu < + > / Cu0 proportion is regulated and controlled, and the strong interaction between metal and a carrier is enhanced. The catalyst is used in a reaction for preparing ethylene glycol through hydrogenation of dimethyl oxalate, the activity, selectivity and stability of the catalyst are higher than those of a traditional heat treatment catalyst, the dimethyl oxalate conversion rate reaches up to 100%, the ethylene glycol selectivity is larger than 97%, and the stability reaches 1000 h or above. The method is simple in process, low in energy consumption and environment-friendly, and has a wide industrial application prospect.

This invention discloses an assembly method for a tooling used for on-site replacement of a coke tower shell. The tooling includes multiple auxiliary replacement components positioned between the outer walls of the coke tower shell at both ends of the shell to be replaced. Reinforcing rings are connected to the outer walls of both the upper and lower shells, and these reinforcing rings are placed within the auxiliary replacement components. A new shell is installed between the upper and lower reinforcing rings, and its outer wall is provided with multiple evenly spaced lifting lugs. Each auxiliary replacement component includes multiple evenly spaced arc-shaped pads fixed to the outer walls of the upper and lower shells. Multiple reinforcing plates are fixed to one side of each pad, with stiffening ribs between them. The upper and lower reinforcing plates and stiffening ribs are symmetrically distributed. A connecting rod is installed between the upper and lower reinforcing plates, its inner side connected to the reinforcing rings. The arc-shaped pads conform to the tower wall in curvature and are made of the same material, ensuring uniform stress on the contact surface. The stiffening ribs are welded to form a stable triangular support, effectively distributing the load. H-beam connecting rods connect the upper and lower reinforcing plates and are welded to the reinforcing rings, constructing a continuous load-bearing frame to avoid deformation or cracking caused by localized stress concentration, thus meeting the requirements for large-scale coke towers.

This invention discloses a defect plane positioning method and tool based on ultrasonic testing, belonging to the field of non-destructive testing technology, with the aim of improving the positioning accuracy of defect planes. The method includes the following steps: S1, determining the actual projection point P of a reference reflector on the test block's testing surface; S2, after the probe detects the maximum echo from the flat-bottomed hole, the position and direction information of the probe are transmitted to the test block's testing surface via a defect locator, determining the test block's measurement origin O on the test block's testing surface, establishing a first coordinate system, and obtaining the coordinates of the actual projection point P; S3, using step S2, determining a workpiece measurement origin O' on the workpiece's testing surface, and establishing a second coordinate system consistent with the direction of the first coordinate system; S4, obtaining a point F in the second coordinate system that matches the coordinates of the actual projection point P. By using a probe, in conjunction with a defect locator and other tools, to mark the test block, determine the deviation, and detect the actual defects in the workpiece accordingly, the defect plane positioning accuracy is improved to within ±1mm.

The utility model relates to the technical field of breeding industry equipment, in particular to a multi-layer combined duck cage which comprises a breeding duck cage, a splicing frame and a cleaning assembly, the splicing frame used for connecting and assembling is arranged on the outer side of the breeding duck cage, the splicing frame is fixedly connected with the breeding duck cage, and the cleaning assembly is arranged on the splicing frame. A base for supporting the multiple layers of duck breeding cages is arranged at the bottom of the splicing frame on the lowermost layer, the splicing frames and the splicing frames and the base are designed in a split assembly mode, an inclined manure receiving plate for receiving duck manure is arranged at the bottom of each duck breeding cage, a cleaning assembly is arranged on one side of each inclined manure receiving plate, and a conveyor for conveying the duck manure is arranged on one side of the base; according to the utility model, the breeding duck cages are fixed by arranging the splicing frame, the splicing frame and the base are designed in a split manner, and meanwhile, the splicing structure is additionally arranged in the splicing frame and the base, so that a user can select different numbers of breeding duck cages to assemble according to site conditions, and the time for waiting for customization of duck cages with different lengths and heights is avoided; and the stock pressure of manufacturers is reduced.

The application discloses a kind of full-time hot standby fault zero attenuation air supply system and method, it is related to air supply system technical field, the air supply system includes: main fan blade, vice fan blade, deceleration synchronization unit, switching control module, risk prediction module, air supply pressurization module and emergency backup unit.The deceleration synchronization unit is connected to the deceleration of main fan blade and vice fan blade, when main fan blade is fault-free operation, vice fan blade can follow it and rotate at low speed, when main fan blade appears fault or there is predicted fault risk, vice fan blade does not need to start quickly to promote speed from static, avoid the delay problem that vice fan blade starts to stable air supply when traditional double fan group switches, ensure that the airflow barrier of scene is not destroyed, guarantee target area air supply environment stability, simultaneously, vice fan blade is standby by main fan blade synchronous rotation, so that vice fan blade standby process does not need to be driven separately, realize the energy-saving standby effect of system, reduce the problem of traditional double fan simultaneous start energy consumption.

Provided is a traffic safety assistance system capable of improving traffic safety, convenience, and smoothness of a plurality of traffic participants in an object traffic area. The traffic safety assistance system includes mobile terminals that move together with people or traffic participants as mobile bodies in the object traffic area, and a cooperative assistance device capable of communicating with the mobile terminals. The mobile terminals include notification devices that perform risk notification in a care notification mode or a simulation notification mode. The cooperative assistance device includes an object traffic area recognition unit that recognizes recognition targets including each traffic participant and a traffic environment in the object traffic area, and acquires recognition information; a prediction unit that predicts future risks of a plurality of traffic participants in a partial monitoring area of the object traffic area as prediction targets; and a risk notification setting unit that sets an action mode of risk notification for each assistance target based on the recognition information and the prediction results.

This invention belongs to the field of seismic design technology for railway bridges, and relates to a seismic analysis method for railway bridges using a variable friction coefficient friction pendulum bearing for seismic isolation and vibration reduction. This method is used to determine the design displacement D of the variable friction coefficient friction pendulum bearing; specifically, it includes the following steps: establishing an equivalent period T based on the design parameters of the variable friction coefficient friction pendulum bearing. eff The relationship between the coefficient of friction and the variable friction coefficient; based on the bridge design conditions, the relationship between the equivalent period and the acceleration response spectrum value is established, and S(T) is obtained. eff Determine the damping adjustment coefficient η; equivalent damping ratio ξ; establish support displacement and equivalent period T. eff S(T) eff By considering the relationship between η and η, and combining it with Newton's iteration process, the final support displacement D is determined. This invention saves time by using analytical expressions for calculation, avoiding tedious modeling, long computation times, and convergence issues compared to the finite element model nonlinear time history analysis method. This allows for rapid evaluation of the seismic performance of different support parameters and structural configurations during the scheme design, parameter optimization, and preliminary design stages.

The DR auxiliary examination device comprises a transverse support, parallel extension plates are arranged at the two ends of the transverse support, and limiting installation mechanisms are arranged at the bottoms of the two extension plates respectively and used for being installed on an examination bed. Positioning grooves are formed in the transverse bracket and are used for fixing different positioning fulcrums of a human body when different parts of a patient lying on the examination bed are examined; a motor is arranged on the extension plate, the motor is connected with a traction rope through a transmission mechanism, the other end of the traction rope is connected with a wearable part, and the wearable part and the force applied to the examination part by the positioning groove are opposite; the transverse support and the positioning groove are made of non-developing materials. According to the utility model, while the clinical examination requirement is met, the input time cost and medical resources are reduced, and the examination can be completed more quickly and conveniently.

The application provides a motor efficiency reduction heating control method and device and a vehicle. The optimal balance between efficiency and noise is achieved by shortening the noise deterioration interval and combining real-time feedback adjustment. The method comprises the following steps: in response to the motor efficiency reduction heating function being turned on, determining the motor efficiency reduction heating target speed under the current driving working condition; before the target speed of the motor changes to the efficiency reduction heating target speed, reading a set of noise reduction parameters matched with the current driving working condition from the pre-stored control parameter set and preloading; making the current target speed of the motor change to the efficiency reduction heating target speed according to a preset rule; during the current target speed changing process and the running stage after reaching the efficiency reduction heating target speed, collecting the running state feedback signal of the motor in real time and constructing an evaluation function; taking the noise reduction parameters as optimization variables, and taking the minimum value of the evaluation function as the optimization target, the specific value of the noise reduction parameters is adjusted in real time within the preset parameter constraint range of the noise reduction parameters.

The application discloses a rule semantic fusion-based large model data verification system and method, and relates to the technical field of data processing and artificial intelligence. The system comprises a data receiving and preprocessing module, an intelligent verification engine module, an abnormality detection and risk assessment module, an execution and linkage module, and a feedback iteration optimization module. The system analyzes multi-source heterogeneous data, outputs verification results through rule compliance and semantic rationality double checking, fuses a four-fold detection mechanism in the abnormality detection module and dynamically weights risk scores, outputs a graded report according to risk levels in the execution module, and continuously optimizes the model and rules based on a time decay mechanism in the feedback module to form a closed loop. The application solves the technical problems of insufficient verification accuracy, difficult automatic arbitration of rule conflicts, poor risk assessment scene adaptability, and abnormality missed detection in the prior art, and improves the intelligentization and self-adaptation level of data verification.

The utility model discloses a battery steel shell processing and cleaning device, belongs to the technical field of battery steel shell cleaning, and solves the problem of low cleaning efficiency caused by incapability of cleaning subsequent battery steel shells simultaneously when the cleaned battery steel shells are taken out from a cleaning disc by the existing device. Comprising an ultrasonic cleaning box and a cleaning disc used for containing the battery steel shell, the ultrasonic cleaning box is provided with rotating assemblies distributed in an annular array mode, the rotating assemblies are provided with placing assemblies used for limiting and fixing the cleaning disc, and the cleaning disc containing the battery steel shell is placed in the placing assemblies; the cleaning disc and the placing assembly are driven to rotate through the rotating assembly, then the placing assembly and the cleaning disc circularly move in the ultrasonic cleaning box, the cleaned cleaning disc can be detached from the placing assembly, a new cleaning disc is replaced on the placing assembly, and the operation is repeated; and the steel battery shell arranged in the cleaning disc can be continuously cleaned.

The invention provides a steady-state simulation method and system for rapidly determining the height difference of the liquid levels of two oil tanks and a medium, and belongs to the technical field of commercial vehicle oil supply. The method comprises the steps that the volume ratio is calculated, the stable state condition is set as that the liquid levels of the two oil tanks synchronously descend with the fixed liquid level height difference, and the net oil outlet flow ratio is equal to the volume ratio; converting the liquid level height difference corresponding to the stable state into a pressure difference of the two oil tanks, and setting the pressure difference as a simulation boundary condition; the method comprises the following steps: calculating the net outlet oil flow ratio of two oil tanks in an initial full oil state and the net outlet oil flow ratio of two oil tanks in an empty oil extreme state of a small oil tank through simulation, judging that a stable state exists when the volume ratio is between the two net outlet oil flow ratios, and searching a target pressure value through an iterative algorithm by taking pressure values corresponding to the initial full oil state and the extreme state as intervals; the net oil outlet flow ratio of the two oil tanks obtained in simulation calculation is equal to the volume ratio of the two oil tanks; and obtaining a stable liquid level height difference according to the found target pressure value. The method can quickly determine the liquid level height difference of the double oil tanks.

The invention discloses an offshore photovoltaic module high-yield assembly line assembling method, an offshore photovoltaic module and a sliding device, and belongs to the technical field of offshore photovoltaic power generation engineering. According to the method, sliding rails are laid on an assembly site, functional areas of a continuous truss assembly area, a continuous assembly installation area and a continuous finished product treatment area are defined, a special sliding device is used for bearing the offshore photovoltaic module, sliding circulation of the module between stations is achieved through manual pushing, and parallel operation of procedures is achieved. The offshore photovoltaic module comprises a load-bearing framework composed of a primary truss, a secondary truss and tie bars, C-shaped steel supports installed on the trusses and photovoltaic panels fixed through pressing blocks. The sliding device comprises a sliding steel plate, a low-friction rolling pair composed of a rail sliding rod and a pulley, a limiting bolt used for locking the rail and a modularized limiting base capable of being matched with different trusses. According to the method, discrete operation is changed into continuous flow line production, the splicing efficiency and safety are improved, and the construction cost is reduced.

The invention discloses an intelligent control system and method for an automobile transmission shaft fatigue test, and relates to the technical field of transmission shaft fatigue testing. Calculating a rigidity abnormal coefficient, judging whether the transmission shaft is fatigued or not according to the rigidity abnormal coefficient, and if not, further calculating a fatigue trend coefficient to analyze whether the transmission shaft tends to be fatigued or not; and finally, according to the fatigue conclusion obtained through any analysis, early warning is given out in time. According to the invention, the rigidity data is collected in real time and the rigidity abnormal coefficient is calculated, so that early warning of the fatigue state of the transmission shaft is realized, and time and resource waste caused by thorough damage of a to-be-tested piece in a traditional test is avoided; by means of automatic comparison of the coefficient and a threshold value, fatigue judgment is more efficient, accurate and quantifiable; meanwhile, the fatigue trend coefficient is obtained by analyzing the rigidity abnormal change slope, the damage evolution trend can be pre-judged, the early warning opportunity can be advanced, and therefore the controllability of the test process and the overall test efficiency are remarkably improved.

The invention relates to the technical field of power supply and control, and discloses a control system for reducing low-temperature starting impact of air energy equipment, which comprises a variable-frequency power driving unit, an electrical signal acquisition unit and a logic control processing unit, the logic control processing unit is used for injecting a quadrature-axis oscillation current sequence with frequency scanning and limited amplitude into a multi-phase inductive load stator winding in a low-temperature starting stage, and resolving an equivalent impedance change characteristic value in real time according to current response; when it is monitored that a second derivative inflection point representing medium damping transition appears in the characteristic value, the closed-loop vector driving mode is switched to, the self-adaptive closed-loop control of a starting time sequence is achieved by constructing a high-frequency alternating electromagnetic field and accurately anchoring a rheological critical point of a load medium through electrical impedance parameters, starting current impact is effectively restrained, and the stability of the starting time sequence is improved. And the safety of the power device is ensured.

The utility model relates to medical device technical field, specifically disclose a rewarming injection tray, including tray body, tray body includes stop plate, is equipped with ampoule hole and timing device hole on the stop plate, rewarming timing device sets up in timing device hole. The utility model simple structure, the tray not only serves as the loading transport tool of injection related device, can also serve as the rewarming timing tool of injection solution, the refrigerated injection solution is loaded into the tray, after rewarming confirmation, carries out next link, avoids the problem that the refrigerated medicine is not rewarming or rewarming time is insufficient to a certain extent. Not only can fast distinguish normal temperature injection solution and refrigerated injection solution, after putting in refrigerated injection solution, automatically complete rewarming timing, and carry out rewarming timing reminder to each refrigerated injection solution, solve the problem that normal temperature injection solution and refrigerated injection solution mix and place and cannot individually rewarming timing to each refrigerated injection solution.

The utility model belongs to the field of milling technology especially relates to the mill shoe for downhole milling, including connecting cylinder, the bottom fixed mounting of connecting cylinder has mill shoe fixed body, the outer fixed surface of mill shoe fixed body is installed with detachable mill mechanism, the inner fixed surface of connecting cylinder is installed with chip removal mechanism, the detachable mill mechanism includes mill block, the back fixed surface of mill block is installed with positioning rod, the outer surface of positioning rod and the inner surface of connecting cylinder are jointed. The mill shoe for downhole milling, through first opening rubber cap, taking out bolt, makes mill block from mill shoe fixed body, then carries mill block of different material mill ball with bolt installation to mill shoe fixed body, then motor drives eccentric wheel to rotate through rotating shaft, eccentric wheel drives sliding rod to move up and down through connecting rod, sliding rod drives slider to move up and down in compression pipe, and compresses the water in compression pipe.

The invention discloses a superconducting power transmission line fault detection method based on superconducting and electromagnetic induction, and relates to the technical field of superconducting power transmission line fault detection, and the method comprises the steps: S10, collecting a magnetic field change time sequence of a target superconducting power transmission line at each layout position point in real time through an electromagnetic induction monitoring device; s20, constructing a reference data matrix; s30, extracting key feature vectors of the target superconducting power transmission line at each end point of the fault position section; s40, determining a fault positioning training set of the target superconducting power transmission line at each end point of the fault position section; s50, analyzing a fault positioning position point of the target superconducting power transmission line; s60, predicting the real-time fault index of the target superconducting power transmission line; and S70, carrying out operation and maintenance processing on the target superconducting power transmission line. According to the invention, the special properties of the target superconducting power transmission line are fully considered, and the limitation of a traditional fault detection method in the superconducting power transmission field is overcome.

The invention discloses a movable hanging basket operation platform of a turnover bridge anchor cable tensioning device. The movable hanging basket operation platform comprises a hanging basket platform mechanism and a movable support system. The hanging basket platform mechanism is fixedly connected with a movable support system, the movable support system comprises a transverse sliding rail, the transverse sliding rail is connected with a transverse sliding way in a sliding mode, and the transverse sliding way is fixedly connected with a longitudinal sliding rail; the movable hanging basket working platform capable of transferring the bridge anchor cable tensioning device is designed, the whole movable hanging basket working platform can be detached and transferred, the movable hanging basket working platform is suitable for continuous construction of multiple anchor points and multiple bridge sections, the equipment input cost is remarkably reduced, the high cost caused by the fact that equipment cannot be repeatedly used in a traditional method is avoided, the resource utilization efficiency is improved, and the construction cost is reduced. The hanging basket platform is fixed on the bridge cantilever arm structure, a crane does not need to suspend for a long time, the use time and cost of a hoisting machine are reduced, the construction cost is further reduced, and a stable operation environment is provided for bridge anchor cable tensioning.

The present application relates to the technical field of ecological risk assessment test strategy, in particular to a method for predicting the content of biological enrichment factor by using QICAR modeling. The present application uses known BCF, metal physicochemical properties and corresponding regional soil physicochemical properties as data, uses the training of QICAR coupled machine learning model to obtain the prediction value of unknown heavy metal BCF in the target region, and screens the test set data through multiple rounds of cross-validation 2 and average absolute error MAE to evaluate the performance of the model to obtain the optimal model, and then evaluates the result through feature analysis and Shapley weighted explanation to obtain accurate and scientific prediction value, which provides effective support for the prediction of heavy metal enrichment capacity of crops and guarantees food safety.

The utility model relates to the technical field of manipulators, in particular to a numerical control servo plastic part carrying manipulator which comprises a mounting plate, an assembling mechanism and a monitoring mechanism are arranged on the mounting plate, clamping frames are arranged on the two sides of the bottom end of the mounting plate, and a moving mechanism is arranged between the clamping frames and the mounting plate. A mounting cylinder is arranged on one side of the clamping frame, a fastening groove is formed in the mounting cylinder, a first telescopic mechanism is arranged on the other side of the clamping frame, the output end of the first telescopic mechanism extends into the fastening groove and is provided with a push plate, a fastening hole is formed between one end of the mounting cylinder and the fastening groove, and the other end of the mounting cylinder is provided with a push rod. According to the structure, the first telescopic mechanism is matched with the elastic component, so that appropriate elastic supporting force can be provided in the clamping process, and damage to fragile plastic components due to excessive clamping is prevented.

The invention relates to a device and a method for splicing and continuously providing a film web. The device comprises a splicing unit for splicing a first or a second input film web with an output film web, and a clamping unit and a film buffer for the output film web behind the clamping unit. The splicing unit comprises a first sealing cheek with a first holding device for the output film web and a first cutting device for separating the output film web in the area of the first sealing cheek. Furthermore, the splicing unit comprises a second sealing cheek with a second holding device for the first or the second input film web alternately and a second cutting device for separating the input film web. The first sealing cheek with the first holding device and the second sealing cheek with the second holding device are movable from their first and second cutting device action areas into their mutual action area.