29results about How to "Avoid cut-off" patented technology

The invention discloses a double-jet powder feeding device, which belongs to the technical field of water treatment, and comprises a gas-liquid separation buffer tank for performing gas-liquid separation on mixed slurry, and an exhaust port is formed in the gas-liquid separation buffer tank; the first jet mixing mechanism is used for preliminarily mixing powder and the first water flow; the water supply mechanism is used for mixing water; one end of the second mixing piece is connected with a water outlet of the gas-liquid separation buffer tank; the first jet mixing mechanism comprises a first mixing piece connected with the gas-liquid separation buffer tank at one end and a feeding assembly used for feeding powder to the first mixing piece, and the other end of the first mixing piece and the other end of the second mixing piece are both connected with a water outlet of the water supply mechanism; and the second mixing piece can be used for secondarily mixing the buffered and separated liquid-solid mixed liquid and the second water flow and pressurizing and throwing out the liquid-solid mixed liquid and the second water flow. The device has the effects of effectively solving gas interference, preventing blockage and reflux, and realizing stable, efficient and continuous feeding.

The invention relates to the technical field of hydrogen peroxide supply, in particular to an extrusion type hydrogen peroxide supply system for a long-time test, which comprises a hydrogen peroxide supply unit, an extrusion unit, a pneumatic control unit and a blowdown unit, comprising a hydrogen peroxide storage tank I and a hydrogen peroxide storage tank II, liquid outlet pipelines at the bottoms of the hydrogen peroxide storage tank I and the hydrogen peroxide storage tank II are jointly communicated with a converging pipeline communicated with a hydrogen peroxide outlet, and the extrusion unit is used for providing extrusion gas for the hydrogen peroxide supply unit. The device is formed by connecting a plurality of storage tanks with relatively small volumes in parallel, liquid is supplied in sequence, the long-time test requirement is met, the extrusion type system extrudes dangerous liquid through inert gas, operation is safe, the structure is simple, the situation that test resources are wasted during short-time test is avoided, the hydrogen peroxide supply problem of long-time test is effectively solved, and the test efficiency is improved. And the safety in the liquid supply process is improved.

The application discloses a cable material particle processing material conveying equipment and relates to the technical field of material conveying. The cable material particle processing material conveying equipment comprises a screening box which is fixedly installed in a working area and is provided with a discharge pipe fixedly connected to the bottom of the screening box. The discharge pipe is used for discharging and collecting fine and unqualified particles separated in the screening process. A plurality of screening components are longitudinally and spacedly arranged in the interior of the screening box and are used for performing step-by-step screening on the input cable material particles so that qualified particles are left in the corresponding levels. The feeding box is communicated with the top of the screening box through the arrangement of the lifting assembly, a closed-loop circulation lifting system of the material is constructed, coarse materials which are not screened or preliminarily separated can be continuously sent to the top screening component for re-screening, the overall screening path and the residence time of the material are effectively prolonged, the probability that the un-screened qualified materials are directly discharged as waste materials is reduced, and thus the overall screening completeness and the product yield of the material are improved.

The utility model discloses a water dropper device for a biomass cellulose fiber continuous spinning machine, and relates to the technical field related to spinning cleaning. The device comprises a mounting disc, a fixing ring, a movable assembly and a water delivery bin, the fixing ring is fixed to the center of the top end of the mounting disc, the water delivery bin is sleeved with the fixing ring, the bottom end of the water delivery bin is arranged at the top end of the mounting disc in a supported mode, and the movable assembly is movably connected to the top end, on the outer side of the fixing ring, of the mounting disc and comprises a connecting block, a fixing plate and a compression bolt. The connecting block is arranged at the top end of the mounting disc, a fixing plate is fixed to the lower portion of the side, away from the water conveying bin, of the connecting block, and a compression bolt is vertically connected to the center in the fixing plate in a penetrating and threaded mode. By arranging the mounting disc, the fixed ring, the movable assembly and the water conveying bin, the problems that the water outlet position of a water outlet structure is prone to deviating from a cleaning water tank in the using process of the water dropper device, and the water outlet structure of the water dropper faces water tanks of different sizes or shapes are solved.

The utility model relates to the technical field of circulating water system devices, and discloses automatic circulating water dosing equipment capable of detecting water quality. The circulating water automatic dosing equipment capable of detecting the water quality comprises a water storage tank, a water circulation dosing mechanism is installed at the rear end of the water storage tank, and a water depth monitoring mechanism is installed on the right side of the water storage tank. The pesticide adding cylinder is installed behind the water storage tank and connected with the internal pipe ring through the pesticide discharging pipe, the internal pipe ring is located on the lower portion of the interior of the water storage tank, the pesticide sprayers are installed on one side of the internal pipe ring, the number of the pesticide sprayers is multiple, and pesticide in the pesticide adding cylinder is sprayed out through the pesticide sprayers; the pesticide can be uniformly sprayed out according to the position of the pesticide sprayer, so that the pesticide is fully mixed in the water storage tank, the water storage tank is disinfected by the pesticide, the water can be comprehensively disinfected by the design, and the safety of the water can be controlled.

The invention discloses a channel switching method, an access point (AP) and a communication system. The method comprises: determining a plurality of spatial streams for signal transmission between an access point (AP) and a terminal by using an initial channel, the plurality of spatial streams being signal streams transmitted based on different combinations of an antenna of the AP and an antenna of the terminal; under the condition that the initial channel does not conform to a predetermined performance condition, adopting a part of spatial streams in the plurality of spatial streams to respectively carry out channel scanning on the plurality of candidate channels, and determining a target channel; switching the partial spatial stream from an initial channel to a target channel; and switching the remaining spatial streams in the plurality of spatial streams to the target channel, the remaining spatial streams being spatial streams other than the partial spatial streams in the plurality of spatial streams. According to the method and the device, the technical problem that the communication quality is reduced due to signal cutoff in the channel switching process in the prior art is solved.

The present invention discloses a lifting and glue supplying mechanism for a receiving and assembling machine, which comprises a box body, a rotating structure, a swing rod, a lifting structure, a tray and a glue box; wherein a guide groove is provided on the box body, and the guide groove extends in the longitudinal direction of the box body; the rotating structure is rotationally connected with the box body; one end of the swing rod is fixedly connected with the rotating structure, and the other end of the swing rod is provided with a waist-shaped hole; the lifting structure is slidably connected with the guide groove, and one end of the lifting structure is provided with a guide shaft, and the guide shaft is slidably set in the waist-shaped hole; the tray is fixedly connected with the other end of the lifting structure; and the glue box is set on the tray. The lifting and glue supplying mechanism for a receiving and assembling machine provided by the present invention eliminates the pipeline used for conveying glue in the prior art, and the roller is directly in contact with the glue in the glue box through the lifting structure, which completely avoids the problem of bubbles generated by conveying glue through the pipeline, and at the same time, by storing glue in the glue box, the problem of glue interruption is also avoided, thereby ensuring the quality of gluing.

The invention discloses a steady-state flow liquid injection and production simulation device and method and application. The device comprises a liquid flow control mechanism, a control analyzer, a liquid storage tank and a rock core container, the flow control mechanism comprises at least three cavities and at least three delivery pumps; each cavity is connected with a corresponding delivery pump; the cavity is respectively connected with the liquid storage tank and the rock core container; the core container is suitable for containing cores; the control analyzer is in signal connection with each conveying pump; the control analyzer can control the actions of the delivery pumps so as to respectively fill the liquid in the liquid storage tank into the cavities in the simulated injection process, and alternately and circularly inject the liquid in the cavities into the rock core according to a set flow ratio; and in the simulated extraction process, liquid in the rock core is alternately and circularly collected into all the cavities according to the set flow proportion, and the liquid in all the cavities is filled into the liquid storage tank, so that the stored liquid in at least three cavities cannot be used up at the same time in the injection and extraction simulation process, cutoff is avoided, and steady-state flow liquid injection and extraction are achieved.

The embodiment of the invention provides a fluorine pump restarting method, a control device, a double-circulation refrigerating system and a storage medium. The fluorine pump restarting method can be used for a double-circulation refrigerating system and is characterized by comprising the steps that after an instruction that a fluorine pump needs to be restarted during flow cutoff is received, a condensate fan is controlled to operate at a first preset rotating speed, and the fluorine pump is closed; controlling the condensate fan to run at a second preset rotating speed and controlling the fluorine pump to start at a third preset rotating speed on the basis that the running duration of the condensate fan at the first preset rotating speed reaches a first preset duration; wherein the second preset rotating speed is smaller than the first preset rotating speed. According to the fluorine pump restarting method, the fluorine pump is started at high frequency after short-time cold blowing, rapid recovery of the fluorine pump after cutoff is achieved, and the fluorine pump restarting method has the advantages of being wide in application temperature, short in consumed time, free of the help of a compressor and high in success rate.

The utility model relates to a filling technical field discloses a piston type quantitative filling mechanism and filling machine, including filling machine device, the fixedly connected with mounting bracket of filling machine device, draw component, draw component sets up on mounting bracket, draw component is used for continuously drawing filling liquid, and draw component includes material storage jar, mounting block, piston block and activity disc, and material storage jar is fixedly connected with mounting bracket, and mounting block is fixedly connected with material storage jar, and piston block is set around on mounting block, and activity disc is movably connected between mounting block, and intermittent transmission is connected between activity disc and piston block, the lateral wall of material storage jar is fixedly connected with feed pipe, and the bottom of material storage jar is fixedly connected with discharge pipe, and one way valve is installed in feed pipe and discharge pipe, and the one way valve in feed pipe faces material storage jar, and piston block intermittent lifting is realized through the cooperation of draw component internals, and the continuous drawing filling liquid is realized in piston block intermittent lifting, and the flow break of filling liquid is avoided.

The application provides an organic synthesis steam recovery device and relates to the technical field of steam recovery.The device comprises a steam recovery tank and an air floatation separation tank arranged in the steam recovery tank, the steam recovery tank is internally provided with a spiral cold water pipe and a spiral partition plate, the air floatation separation tank is internally provided with an organic matter separation pipe and a gas overflow port provided with a gas diffusing plate, steam enters from a steam inlet, and then is countercurrently convected and condensed along the spiral partition plate and the spiral cold water pipe, condensed water and uncondensed gas enter the air floatation separation tank after being refined into bubbles by the gas diffusing plate, and through secondary condensation and air floatation during the rising process of the bubbles, organic matter impurities and pure condensed water are separated, compared with a traditional device, the application solves the problems of insufficient condensation, difficult impurity separation and loose structure, has the advantages of complete heat energy recovery, accurate organic matter separation and stable and compact operation, and is suitable for efficient treatment and resource recycling of high-temperature steam containing impurities in the organic synthesis industry.

The invention relates to a super-frame number synchronization method and device, electronic equipment, a chip and a medium, and the method comprises the steps: carrying out the decryption of a data package received from network equipment through combining with the current super-frame number of terminal equipment under the condition that the mode reconstruction is successful, and obtaining a decrypted data package; determining whether the data packet is successfully decrypted by combining a first data packet parameter in the data packet and a second data packet parameter of the decrypted data packet; under the condition that decryption of the data packet fails, selecting a target candidate super-frame number of the successfully decrypted data packet from the candidate super-frame number array corresponding to the current super-frame number, and then updating the current super-frame number to realize super-frame number synchronization between the terminal device and the network device; through comparison of the first data packet parameter and the second data packet parameter, the hyper-frame number out-of-step condition can be rapidly detected, and hyper-frame number synchronization processing is carried out, so that data packet decryption failure and data transmission cutoff are avoided, and the data transmission performance is improved.

The utility model discloses a telescopic hot air curling iron belongs to personal care appliance field, aims at solving the single function of existing telescopic curling iron, telescopic easy to shake and jam, the problem of hot air easy broken flow. It includes fixed cylinder body, movable cylinder body, host computer and operating part. The fixed cylinder body inside is equipped with rack, and movable cylinder body inside is equipped with movable piece with rack engagement to realize axial telescopic, and the both side walls are opened with the inclined ventilation groove of intercommunication, and the first ventilation groove of movable cylinder body is longer than the second ventilation groove of fixed cylinder body, and the hot air is ensured to continue intercommunication, and the fixed cylinder body is equipped with guide rail, and is matched with the guide slot of movable cylinder body. The host computer is connected fixed cylinder body and produces hot air, and operating part is driven telescopic. The utility model integrates telescopic and hot air function, and the telescopic is stable and accurate, and the hot air output is continuous, and is safe and durable, and adapts to the demand of various hairdressing.

The utility model belongs to the technical field of emulsification pumps, and particularly relates to a powder-liquid self-suction type homogenizing emulsification pump with a spiral conveying function. The self-priming pump comprises a pump body with the axis horizontally arranged, a pump cavity of the pump body forms a working cavity where a self-priming impeller is located, the self-priming impeller is coaxially installed at the front end of a main shaft, so that the pump cavity where the front end of the main shaft is located forms a feeding port, and the self-priming pump is characterized in that in the axial direction of the main shaft, the cavity wall of the feeding port in the pump body extends forwards to form a mixing chamber; a spiral conveying shaft is arranged in the material mixing chamber and is coaxially mounted at the front end of the main shaft, and the material conveying direction of the spiral conveying shaft points to the direction of the material inlet; a liquid inlet is formed in the cavity wall of the mixing chamber where the front shaft end of the spiral conveying shaft is located, and a powder inlet is formed in the cavity wall of the mixing chamber where the shaft side of the spiral conveying shaft is located. According to the utility model, powder and liquid phase materials can be sucked into the pump body for high-speed mixing homogenization and reaction dissolution, and meanwhile, the material refining and dispersing shearing effects are better.

The utility model relates to the field of mixing machine, concretely relates to a high -efficient feeding formula material mixing machine, including mixing jar, be equipped with mixing mechanism in the mixing jar, be equipped with the guide chute under the mixing jar, be equipped with the flow control mechanism in the guide chute, the below of guide chute is equipped with the feeding mechanism, drive the pivot and mixing stirring board through the motor, and cooperate rotary connecting piece, realized the efficient stirring and full even mixing of material in the mixing jar, eliminated the stirring dead angle, shortened the mixing time, through the rudder control resistance plate rotation, make it with the flow groove accurate cooperation, realized the flexible adjustment of material flow speed, can control material flow according to different production demand, avoid the blockage or the broken flow.

The utility model discloses a glue heating mechanism for a screw glue spreader, which comprises a glue spreader body, a mounting rack is fixedly connected to the glue spreader body, and a glue circulation pipeline is rotatably connected to the mounting rack in a penetrating manner. The upper end of the mounting frame is provided with a colloid leading-in assembly which penetrates through the upper end of the colloid circulation pipeline and extends into the colloid circulation pipeline, and the bottom of the colloid leading-in assembly is fixedly connected with a stirring assembly which is located in the colloid circulation pipeline and abuts against the inner side wall of the colloid circulation pipeline; a driving assembly for driving the colloid circulation pipeline to rotate is arranged at the upper end of the mounting frame, and a gluing head is mounted at the lower end of the colloid circulation pipeline. The glue coating device is reasonable in structural design, glue in the glue circulation pipeline and the glue coating head can be uniformly heated, the phenomena of unsmooth circulation, cutoff and even solidification are avoided, and the glue coating head can be conveniently taken down to be cleaned or replaced.

The utility model relates to the technical field of sewage treatment, in particular to a mixing and homogenizing device in a sewage treatment process, which comprises a bottom plate and a third box body, the left end of the upper surface of the bottom plate is fixedly connected with the lower surface of the third box body, and the upper surface of the third box body is communicated with a medicine box. The surface of the medicine box is fixedly connected with the surface of a third box body through a support, a sewage treatment mixed medicine powder dispersing structure is arranged on the inner wall of the third box body, and a fourth box body is fixedly connected to the right end of the upper surface of the bottom plate. According to the mixing and homogenizing device in the sewage treatment process, through cooperation of a sewage treatment mixed medicine powder dispersing structure and a medicine box, a first motor is started to drive a roller to rotate in a first box body, the roller rotates through a sliding groove formed in the surface, a cylinder protruding out of the surface of a V-shaped rod and a pin shaft in the middle, and the sewage treatment mixed medicine powder dispersing structure is additionally arranged; and the medicine powder can be scattered before being fused with sewage, so that the medicine powder is prevented from being sticky together, and the sewage treatment can be more uniform.

The invention provides an anti-congestion vehicle-mounted communication system based on an optical network architecture, which belongs to the technical field of communication, and comprises the following modules: a vehicle machine; the optical communication transmission equipment is connected with the vehicle machine; the at least one first type line is connected with the optical communication transmission equipment and is used for sending a first message to the optical communication transmission equipment; the at least one second type line is connected with the optical communication transmission equipment and is used for sending a second message to the optical communication transmission equipment; and the optical communication transmission equipment is used for sending the first message and the second message to corresponding priority queues according to the priority information in the first message and the priority information in the second message so as to transmit the first message and the second message to the vehicle machine. The priority information is determined according to the service, so that the important service can preferentially acquire the bandwidth, the congestion caused by the bandwidth competition problem is relieved, the signal cutoff of the important service is avoided, and the driving safety of the automobile is ensured.

The embodiment of the invention provides a cigarette block visual identification system and a constant flow control method. The system comprises a slicing machine, a visual identification detection device, a control system, an air control system and an air cylinder. A slicing machine splits the tobacco bales into tobacco blocks; the visual identification detection device collects the outline characteristics of the cigarette blocks and transmits the outline characteristics of the cigarette blocks to the control system; the control system compares the cigarette block contour features with preset standard contour features, determines a deviation result according to a comparison result, and sends the deviation result to a pneumatic control system; the pneumatic control system determines a cylinder adjusting scheme based on the deviation result and adjusts the cylinder through the cylinder adjusting scheme; and the cylinder aligns the cigarette block. Therefore, the flow of the tobacco blocks on the outlet belt of the slicing machine can be stable, the problems of cutoff and flow fluctuation caused by the phenomena of deflection, clamping stagnation, stacking, material blockage and the like of the tobacco blocks are prevented, and the processing stability of a slicing process and the control stability of a subsequent moisture regaining process are improved.

The invention relates to the technical field of warehousing systems, and discloses an order task allocation method, a server, a computer readable storage medium and a warehousing system. The method comprises the following steps: determining an unallocated order task, wherein materials in the unallocated order task cover a plurality of classification attributes; obtaining order task processing states of other work stations except the current work station in the warehousing system, wherein the order task processing states comprise classification attributes of materials currently processed by the work stations; determining whether a first target classification attribute exists in the multiple classification attributes or not, wherein the first target classification attribute is the classification attribute not included in the classification attributes corresponding to the materials currently processed by other workstations; if the first target classification attribute exists, taking the first target classification attribute as a target classification attribute; and generating a box carrying task according to the target classification attribute, wherein the box carrying task is used for carrying the material box of the material corresponding to the target classification attribute to the current workstation. According to the invention, the workstation cutoff risk is reduced.

The invention belongs to the technical field of compound fertilizer production control, and relates to a production process control method of compound fertilizer particles containing humic acid chelated zinc. According to the method, the total amount of a zinc source is distributed to each monitoring period according to a nonlinear decreasing strategy, the feeding rate is determined, and the subsequent feeding rate is reversely corrected by combining the chelating rate change rate and the feeding rate; calculating a chelation rate change rate and a temperature-chelation rate coupling coefficient in real time, and dynamically executing a cooling and speed reducing, rotating speed increasing or pulse stirring and stepped heating synergistic activation mode according to a criterion; and when the change rate of the chelation rate continuously converges, the coupling coefficient maintains positive correlation and the zinc source is completely added, the reaction termination condition is judged by multiple indexes in a combined manner. The method solves the problems that in the prior art, zinc source feeding is not matched with the reaction process, the reaction efficiency is difficult to recover through single parameter adjustment, and the reaction endpoint judgment is lagged, dynamic balance of zinc source supply and the chelating capacity is achieved, and the stability of the product chelating rate is guaranteed.

The utility model belongs to the technical field of wheat irrigation, and particularly relates to a wide underground porous wheat watering device. Comprising a water storage tank, the water storage tank is connected with a water supply pump through a main pipe, the water supply pump is connected with two filters in parallel through the main pipe, and the two filters are jointly connected with an adjusting valve in series through the main pipe; pressure sensors are installed on the main pipes at the output end of the water supply pump, the output end of the adjusting valve and the output ends of the two filters, reflux valves are installed on the main pipes at the input ends of the two filters, the outer walls of the branch pipes are round, the inner walls of the branch pipes are oval, and a plurality of watering holes are formed in the branch pipes. The water storage tank, the water supply pump, the filter, the regulating valve, the pressure sensor and the reflux valve are electrically connected with the control system. The filter can be automatically cleaned, the workload is reduced, the watering branch pipes can keep enough elasticity to support soil to prevent cutoff, the watering holes can be flushed under the condition of low pressure, and blockage is prevented.

This utility model relates to the field of beverage vending machine technology, specifically a water tank structure for an automatic beverage vending machine. It includes a cabinet containing a water tank, a cup-dispensing module, an ice-making module, an ice-dispensing module, a syrup-dispensing module, a hot water-dispensing module, a cup-sealing module, a turntable transmission module, and an ice-weighing module. The water tank includes a tank body installed at the bottom of the cabinet. An opening is provided at the top of the tank body, and a lid is threaded onto the top of the opening. This utility model, by setting up a first and a second water level monitoring rod, allows for monitoring of the water level within the tank body. This enables timely intelligent warnings when the water level is too high or too low, preventing problems such as water shortage shutdowns and overflows during operation. This meets the high-efficiency operation requirements of tea beverage consumption scenarios and improves the practicality of this utility model.

The invention discloses a water-jet-guided laser head and a water-jet-guided laser processing device, relates to the technical field of laser processing, and aims to solve the problems that an existing water-jet-guided laser head cannot cool a lens and cannot dry the interior of the existing water-jet-guided laser head. According to the water guide laser head, the vortex separation structure is arranged on the shell, so that input high-pressure gas can be separated into cold airflow and hot airflow; wherein cold air flow can flow into the mirror cavity from the cold air outlet of the vortex separation channel through the cooling channel, is directly contacted with the lens assembly, exchanges heat with the lens assembly and then is discharged from the cold air discharge hole, so that the temperature of the lens is effectively reduced, and the mirror cavity is dried and cleaned; the hot air flow can flow into the fit clearance of the drying chamber and the nozzle from the hot air outlet of the vortex separation channel to dry the interior of the water guide laser head, and is discharged through the hot air discharge structure while taking away internal moisture and impurities to form positive pressure air flow blown outwards, so that the interior of the water guide laser head is further ensured to be dry and clean.

This utility model relates to the field of tobacco processing technology and discloses a tobacco pack anti-slip device applied to an inclined slicer. A sliding crossbar slides along a slide rail on a track frame, assembling the linkage unit and the track unit. A bottom platform slides along a guide path on a guide plate, assembling the linkage unit and the guide plate. To ensure continuous operation of the inclined slicer and prevent slippage and flow interruption, the piston rod extends and retracts, causing the sliding crossbar to slide along the slide rail. The bottom platform deforms the parallelogram structure of the linkage assembly along the guide path, driving the lower push plate to move. This provides support for a tobacco pack that is slipping behind the rear push plate on the conveyor belt. Simultaneously, because the anti-slip device is mounted on the moving frame and interlocked with the rear push plate via a top clamp, the lower push plate can provide a certain upward pulling force to the tobacco pack, solving the slippage problem on the conveyor belt of the inclined slicer and ensuring production continuity.

The present invention discloses a glue supply device for a connection machine, which includes a machine body, a lifting mechanism, a tray, a glue box, a positioning frame, a glue roller and a glue control roller; wherein the lifting mechanism is connected to the machine body; the tray is arranged on the lifting mechanism; the glue box is arranged on the tray; the positioning frame is connected to the machine body; the glue roller is rotatably connected to the positioning frame; the glue control roller is rotatably connected to the positioning frame, the glue control roller protrudes from the bottom of the positioning frame, and the part of the glue control roller protruding from the bottom of the positioning frame is immersed in the glue liquid in the glue box, and the glue control roller is used to transfer the glue liquid to the glue roller. The glue supply device for the connection machine provided by the present invention eliminates the pipeline used for conveying the glue liquid in the prior art, and the glue control roller is directly in contact with the glue liquid in the glue box through the lifting mechanism, which completely avoids the problem of bubbles generated by conveying the glue liquid through the pipeline, and at the same time, by storing the glue liquid in the glue box, the problem of glue liquid interruption is also avoided, thereby ensuring the quality of gluing.

The beverage packaging device with the automatic feeding function comprises a main body, the rear side of the upper portion of the main body is detachably connected with a supporting rod through a nut, and a feeding mechanism is arranged above the supporting rod; the feeding mechanism comprises a fixing ring, and the fixing ring is detachably connected with the top of the supporting rod and detachably connected with the top of the supporting rod. Through the fixed ring, the adjusting ring, the rotating rod, the first gear, the pawl and the ratchet groove, when a packaging bag is fed, a motor drives the ratchet groove and the first gear fixedly connected to the outer side of the ratchet groove to rotate anticlockwise through the rotating rod fixedly connected to the output end and the pawl arranged below one end of the rotating rod; the first gear rotating anticlockwise can drive the adjusting ring connected with the first gear in a meshed mode to rotate by 90 degrees along the fixing ring, the used winding rod is moved away, the winding rod with the packaging bag roll is moved to the position above the front side of the main body, packaging bags can be conveniently and rapidly supplemented, and the situation that time is wasted and the packaging efficiency is affected when the packaging bag roll is replaced is prevented.

The invention discloses an air conditioner and a control method thereof.The control method comprises the steps that the indoor environment temperature and the outdoor environment temperature are obtained, and the difference between the indoor environment temperature and the outdoor environment temperature is obtained to obtain the current indoor and outdoor environment temperature difference; acquiring an outer fan nominal rotating speed limit range and a pump rotating speed limit range corresponding to the current indoor and outdoor environment temperature difference; acquiring the current rotating speed of the pump; the actual rotating speed upper limit is determined within the nominal rotating speed limiting range of the outer draught fan, and the actual rotating speed upper limit is set as the rotating speed upper limit of the outer draught fan; wherein the closer the current rotating speed is to the pump rotating speed upper limit of the pump rotating speed limit range, the closer the actual rotating speed upper limit is to the nominal rotating speed upper limit of the nominal rotating speed limit range of the outer fan. The invention aims to solve the technical problem of how to prevent refrigerant cutoff at a pump inlet caused by too high rotating speed of an external fan or too low rotating speed of a pump when the indoor and outdoor environment temperature difference is relatively large.

The invention relates to the technical field of warehousing systems, and discloses an order task allocation method, a server, a computer readable storage medium and a warehousing system. The method comprises the following steps: in response to operation starting of a current work station, obtaining order task processing states of other work stations except the current work station in a warehousing system; determining an unallocated order task, wherein materials in the unallocated order task cover a plurality of classification attributes; according to the number of material boxes of materials corresponding to each classification attribute in the unallocated order tasks and order task processing states of other workstations, determining the cross-station rate of each classification attribute in the multiple classification attributes; and generating a box carrying task according to the target classification attribute, wherein the box carrying task is used for carrying the material box of the material corresponding to the target classification attribute to the current workstation. According to the invention, the workstation cutoff risk is reduced.