53 results about "Membrane adsorption" patented technology

The application belongs to the technical field of membrane and adsorption separation material preparation, and particularly relates to a MOFs composite film rich in nitrogen atoms and a preparation method and application thereof. The preparation method comprises the following steps: firstly, synthesizing UiO-66-NH2, introducing aldehyde groups on the surface of the UiO-66-NH2 through a condensation reaction, then performing amino functionalization, and finally mixing and crosslinking to obtain the MOFs film rich in nitrogen atoms. The MOFs composite film prepared by the application has good uniformity, high mechanical strength and good flexibility, and is simple and convenient to form into a film, can be used as a separation membrane for adsorbing and removing heavy metal ions in water, and can also be used for enriching and recycling rare and precious metals in metallurgical wastewater. The MOFs composite film prepared by the application has high selectivity and large adsorption capacity for molybdenum ions, and has very significant application value.

A chromatography system is provided. The chromatography system is configured to process a feed fluid containing a plurality of components, wherein at least one component of the plurality of components of the feed fluid is a target component. The chromatography system comprises: a flow path comprising a plurality of fluid control components configured to control a fluid flow; a stationary phase, wherein the stationary phase is at least one membrane adsorber connected to the flow path and the stationary phase is configured to isolate the target component. The flow path is configured such that harvesting of the target component is optimized.

The invention belongs to the technical field of functional materials, and discloses an amidoxime-based chitosan microporous membrane adsorption material as well as a preparation method and application thereof. According to the amidoxime-based chitosan microporous membrane adsorption material, a chitosan microporous membrane is used as a matrix, and amidoxime groups are grafted on the matrix; the adsorption material has a microporous structure, the average pore size is 0.05-0.3 mu m, and the bacteriostasis rate on escherichia coli and staphylococcus aureus is not lower than 90%. The amidoxime group introduced in the invention has specific chelating ability to uranyl ions. Even in a simulated salt lake brine environment in which high-concentration competitive cations exist, the membrane adsorption material can still maintain high-selectivity adsorption on uranium, the extraction rate can reach 86% or above, and extremely high ion interference resistance is shown. The broad-spectrum antibacterial property of the chitosan base material is creatively utilized, so that the antibacterial rates of the obtained membrane adsorption material on escherichia coli and staphylococcus aureus exceed 90%.

This invention provides a battery separator with ion adsorption capabilities and its preparation method, belonging to the field of new energy battery technology. It solves the problem of battery capacity decay and deterioration of cycle performance caused by ion leaching damaging the SEI film and consuming active lithium. The battery separator of this invention includes a base film and a ceramic coating on at least one surface of the base film. The raw materials for preparing the ceramic coating include porous organic framework materials, metal ion chelating agents, ceramic particulate materials, wetting agents, and binders. This invention significantly improves the dispersion ability of the slurry and shortens the dispersion time by using metal ion chelating agents instead of traditional dispersants. Simultaneously, the use of binders containing specific functional groups crosslinks with the porous organic framework materials and forms a synergistic effect with the chelating agents, thereby jointly enhancing the battery separator's ability to adsorb metal ions. This effectively solves the problem of poor stability in high-energy-density battery systems, thus significantly improving the battery's energy density and cycle life.

The application discloses a high-ionic-conductivity diaphragm and a preparation method thereof. The diaphragm is prepared by using an ultrahigh molecular weight polyethylene as a matrix and a covalent organic framework material as a functional filler through a thermal phase separation method. The introduction of the COF material significantly improves the ionic conductivity, thermal dimensional stability and mechanical strength of the diaphragm, and the diaphragm can be endowed with the characteristics of adsorbing polysulfides and guiding uniform ion deposition through COF channel functionalization. The preparation method is mature in process and easy to scale up production, and the prepared diaphragm is suitable for next-generation high-energy-density and high-safety electrochemical energy storage devices with high performance requirements.

The utility model discloses a kind of flue gas carbon dioxide low-temperature condensation purification systems, it is related to flue gas carbon dioxide processing technical field.The utility model includes, condensing structure, including conveying pipe, condensing box of sleeving in conveying pipe one side outer wall, liquid nitrogen tank located conveying pipe rear side, heat exchange pipe that is snakelike distribution in condensing box interior and outer wall is flat and is communicated with liquid nitrogen tank output end, conveying port that is staggered distribution between heat exchange pipe, the shrink nozzle of annular array distribution in conveying pipe one end and corresponding heat exchange pipe;Drying structure, including cylinder one and cylinder two located condensing box one side, net cylinder located cylinder one and cylinder two interior, drying agent that is granular in net cylinder interior.The utility model is set to condensing section structure, avoid under high temperature CO2 plasticization effect enhancement, polymer chain spacing expansion, support layer and skin layer thermal expansion shrinkage or skin layer peeling, affect carbon dioxide purification process membrane adsorption stability problem.

This utility model discloses a flue gas carbon dioxide membrane adsorption purification device, relating to the field of carbon dioxide membrane adsorption technology. The utility model includes a cold treatment structure comprising a membrane adsorption purification cylinder, a second mixing cylinder connected to the membrane adsorption purification cylinder via a pipe, a first mixing cylinder connected to the second mixing cylinder via a pipe, a pre-cooling cylinder located on one side of the first mixing cylinder, a cooling cylinder and a drying cylinder located below the pre-cooling cylinder and connected via a pipe, a liquid nitrogen tank located in front of the cooling cylinder, a spiral tube connected to the output end of the liquid nitrogen tank and spirally distributed inside the cooling cylinder, a desiccant located inside the drying cylinder, and an air inlet pipe connected to the pre-cooling cylinder and the first mixing cylinder; and a mixing structure comprising an installation shaft located inside the first mixing cylinder and multiple sets of stirring rods arranged in a ring array inside the first mixing cylinder. This utility model, by setting a cold treatment structure, solves the problem that polymer membranes are easily deformed by heat during carbon dioxide membrane adsorption purification, affecting the stability of membrane adsorption purification.

The utility model discloses a fast adsorption membrane adsorption device relates to membrane adsorption device technical field, including membrane adsorption member and drainage member, the drainage member is symmetrically installed at the both ends of membrane adsorption member, and the drainage member one side far away from membrane adsorption member is equipped with the capping member, the membrane adsorption member is equipped with the membrane adsorption member. And the side edge of the membrane adsorption component is connected with the combined component. According to the membrane adsorption device capable of achieving rapid adsorption, drainage components are symmetrically arranged at the two ends of the membrane adsorption component, and an electric turbofan arranged in the structure rotates at a high speed, so that a medium passing through the interior of the whole device can be disturbed, and the drainage effect is achieved; by means of the structure arrangement of the combined component and the combined use of part of structures of the membrane adsorption component, multiple sets of devices can be combined and spliced according to needs, and series combination of the structures is achieved by using the quick-connection valve head in cooperation with the use of a pipeline.

The present application relates to a kind of minoxidil external solution and its preparation process, including 3 portions minoxidil, 30-40 portions ethanol, 5-7 portions propylene glycol, 0.005-0.02 portions antioxidant, 0.1-0.3 portions chelating agent, 58-60 portions purified water.The present application adds suitable antioxidant and chelating agent, so that minoxidil external solution reduces the generation of oxidation reaction in storage and use process, effectively prevents the problem of long-term storage discoloration, and the stability of the minoxidil external solution is high.By improving the formula and filtering process, microporous filter membrane is used for the original liquid, and repeated filtration is at least 2 times, and the filtration pressure and filtration temperature are repeatedly changed every minute;Finally, the amount of minoxidil adsorbed and retained by microporous filter membrane during filtration is very low (adsorption rate is less than 0.5%), which is significantly lower than the existing level, the stability of the effective component of product is high, and the qualified rate of product is significantly improved.

The application discloses a kind of based on silicon oxide nanowire polyelectrolyte membrane preparation method and high-efficiency adsorption to heavy metal ions, and its technical scheme main points are: a kind of polyelectrolyte membrane preparation method based on silicon oxide nanowire SiO2 NWs, and polyelectrolyte composite membrane can effectively adsorb heavy metal ions.The application is successfully synthesized by using layer-by-layer assembly method (LBL) by suction filtration device, three-dimensional self-supporting membrane with high efficiency, large capacity and controllable morphology.The specific steps include preparation of SiO2 NWs, amination of SiO2 NWs, and suction filtration to form SiO2 NWs membrane combined layer-by-layer self-assembly technology to finally prepare three-dimensional self-supporting polyelectrolyte composite membrane.The application has simple process, safe operation, and certain practical application prospect.The porosity of polyelectrolyte membrane is high, and it has good heavy metal adsorption and desorption capacity, so it is an ideal membrane adsorption material.

The invention relates to the technical field of chemical equipment, in particular to a water content adjusting device suitable for hexafluoroethane detection, which comprises an adjusting main body, a water inlet pipe, a water outlet pipe and a water outlet pipe, the liquid film adsorption module is arranged at the bottom of the adjusting cavity and comprises a liquid film driving assembly, a liquid flowing rotating disc and a liquid supply assembly, the liquid supply assembly distributes adsorption liquid to the surface of the liquid flowing rotating disc, and the adsorption liquid flows along the surface of the liquid flowing rotating disc under the action of centrifugal force generated by rotation of the liquid flowing rotating disc to form a liquid film; the two-stage drying module is arranged in the adjusting cavity and located above the liquid film adsorption module, and the two-stage drying module sequentially comprises a first drying assembly, a switching assembly and a second drying assembly from bottom to top; and the switching assembly is used for enabling the gas dried by the first drying assembly to enter the second drying assembly or be directly output. The water content adjusting device suitable for hexafluoroethane detection can adjust the treatment process according to the water content of hexafluoroethane to be treated, and the detection accuracy and adaptability are improved.

This invention relates to a method and system for bonding insulating film to a battery pack circuit breaker unit, relating to the field of battery pack manufacturing. The method includes: collecting material distribution data and material property parameters; determining the temperature of the copper busbar region and the plastic region based on the material distribution data and material property parameters; performing differentiated preheating of the product surface in response to the region temperature, and collecting three-dimensional morphological data; calculating a morphological complexity index based on the three-dimensional morphological data; when the morphological complexity index does not exceed a complexity threshold, adsorbing the insulating film onto a bonding fixture, controlling the bonding fixture to move at a bonding angle, and using a roller device located at the rear of the bonding fixture to roll and press the insulating film onto the product surface; when the morphological complexity index exceeds the complexity threshold, immersing the bonding fixture with the adsorbed insulating film and the product in a liquid medium for bonding using a liquid-phase bonding method. This application has the effect of improving the bonding quality of the insulating film.

The invention relates to the technical field of sewage treatment, in particular to a wastewater treatment process based on conductive film coupling adsorption and an electro-Fenton technology. Sewage enters the membrane assembly, and dissolved organic pollutants are adsorbed and removed by a nanocrystalline filter functional layer on the surface of the conductive separation membrane; after adsorption saturation of the nanocrystalline filter functional layer, negative bias voltage is applied to the conductive film, an electrolyte solution containing Fe < 2 + > is injected into the film assembly, O2 is aerated through an aeration device, O2 obtains electrons on the conductive film and is reduced to generate H2O2, generated H2O2 reacts with Fe < 2 + > to generate. OH, and adsorbed organic pollutants are oxidized and degraded. The regeneration of the adsorption capacity of the nanocrystalline filter functional layer is realized. According to the method, long-term stable treatment of the wastewater is realized through adsorption-electro-Fenton regeneration cycle operation, membrane separation, adsorption and electrochemical technologies are fused, dissolved organic pollutants can be efficiently removed, and the method has the advantages of being good in treatment effect, low in energy consumption, easy and convenient to operate and the like and is wide in application prospect.

The invention relates to the technical field of solar thermochemical utilization and hydrogen preparation, and discloses a hydrogen separation and CO2 adsorption synergistic reinforced solar methanol reforming hydrogen production system, which integrates a reaction unit and a separation unit, and solves the problem of reaction separation disjunction of a traditional system. In the prior art, most of a reaction unit, a carbon dioxide removal unit and a hydrogen separation unit are independent equipment and need to be connected through pipelines, and the problems of heat loss, reaction inhibition and the like exist. The membrane-adsorption coupling reaction separation unit adopts an integrated reforming reaction kettle structure of a glass tube, a vacuum region, a heat absorption tube, a reaction region and a hydrogen permeable membrane, and four functions of solar heat absorption, methanol steam reforming reaction, carbon dioxide adsorption removal and hydrogen selective separation are integrated and designed in the same equipment; real-time cooperation of reaction and separation is guaranteed from the space structure, the space utilization rate is improved, meanwhile, heat loss and the reaction inhibition effect are greatly reduced, and the overall efficiency of the system is remarkably improved.

The invention provides a laser measuring device for intraocular lens size detection, which relates to the field of intraocular lenses and comprises a base, a placement table, a fixing mechanism, a laser measuring instrument and a multi-axis movement mechanism, the placing table is fixed at the top of the base; the fixing mechanism is arranged on the placing table and is used for fixing an intraocular lens body to be tested; the laser measuring instrument is arranged above the fixing mechanism; and the multi-axis movement mechanism is arranged on the base, is in transmission connection with the laser measuring instrument and is used for driving the laser measuring instrument to move in a three-dimensional space. According to the laser measuring device for detecting the size of the intraocular lens, silica gel film adsorption and contact are adopted, scratches, indentations or stress concentration possibly caused by a metal clamp are avoided, the precise optical surface of the intraocular lens is perfectly protected, and real nondestructive clamping is achieved.

The invention discloses a whole membrane process for extracting lithium salt from low-grade and high-impurity brine extracted from an oil field. According to the process, deep pretreatment of NTUlt is realized through oil removal, microfiltration and ultrafiltration membrane groups; the method comprises the following steps: 1, efficiently enriching lithium ions by utilizing an independently researched and developed modular adsorption membrane assembly, greatly reducing fresh water consumption by integrating a WIII water circulation system, reducing the impurity content to be less than 10ppm by adopting an OSN membrane purification technology, and improving the lithium concentration to be more than 18g / L by combining an OsRO high-magnification concentration technology; the method omits a high-energy-consumption MVR evaporation section, has the advantages of high integration level, low energy consumption, low water consumption, remarkable economical efficiency and the like, and realizes green and efficient recovery of lithium resources of complex oilfield brine.

The application discloses a kind of carbon quantum dots for synchronous detection and adsorption treatment bisphenol A, precursor solution is obtained by solvothermal reaction from morpholine and / or morpholine derivative and polyethylene glycol, then heated with amido imidazole compound to prepare;The morpholine and / or morpholine derivative include at least one of morpholine, 4-acetyl morpholine, 4-amino morpholine, morpholine-4-yl acetic acid.The carbon quantum dots of the application have CO2 response function, linear fluorescence cluster extinction phenomenon to bisphenol A at the same time, can also provide active site to enhance membrane adsorption performance, can be used as the detection material and adsorption material of bisphenol A.Biobased composite film prepared from the carbon quantum dots of the application can realize efficient adsorption treatment and real-time reliable monitoring in the application of bisphenol A pollution treatment of industrial wastewater, also has the advantages of wide raw material source, low cost, green and environmental protection, has broad prospects in economic, environmental and social benefits.

This utility model discloses a dust removal device for diffusion membrane processing, including a dust collection box. An electrostatic eliminator is installed at the initial end of the dust collection box, and a diffusion membrane adsorption dust removal device is installed at the end of the dust collection box. This utility model uses a U-shaped adsorption tube to position the suction port on the upper and lower sides of the diffusion membrane, achieving comprehensive dust collection. The sucked-in exhaust gas is pre-filtered through a filter screen, filtering out large particulate impurities, which either adhere to the filter screen or fall into the collection tank. The user can flip the L-shaped limiting plate to release its restriction, allowing for removal and cleaning. By installing a water collection ring plate and atomizing nozzles inside the spray cylinder, the exhaust gas can be further dusted, ensuring that the gas is discharged indoors without affecting the surrounding environment or human health. Wastewater is collected in a collection box and can be easily poured out.

The invention discloses a method for directly measuring critical micelle concentration of an amphiphilic polymer. The method comprises the following steps: establishing a standard curve of the amphiphilic polymer; preparing an amphiphilic polymer aqueous solution with a series of concentrations as an ultrafiltration sample; carrying out ultrafiltration treatment on the ultrafiltration sample, collecting an ultrafiltration solution and a membrane adsorption recovery solution, and diluting to a linear range of a standard curve; the concentration of the amphiphilic polymer in the to-be-detected sample is measured through HPLC-MS / MS and converted into the concentration in an ultrafiltration sample, and the sum of the concentration of the ultrafiltration solution and the concentration of the membrane adsorption recovery solution is the free concentration; a concentration change curve is drawn, the abscissa is the theoretical total concentration of the ultrafiltration sample, the ordinate is the free concentration, and the theoretical total concentration corresponding to the turning point of the free concentration-total concentration curve is the critical micelle concentration of the amphiphilic polymer. Through combination of HPLC-MS / MS and an ultrafiltration technology, the concentration of free molecules is directly separated and detected, the method is more accurate and direct than an indirect determination method, and the influence of a fluorescent probe and a dye on a critical micelle concentration determination result is avoided.

This invention relates to the field of uranium adsorption materials, and particularly to a method for preparing and applying a sulfonated aromatic uranium adsorption membrane. A polymer is dissolved in an organic solvent to obtain a casting solution; the casting solution is then used to prepare a membrane, resulting in the sulfonated aromatic uranium adsorption membrane. The polymer's structural formula is shown in Formula I. This invention provides a novel sulfonated aromatic uranium adsorption membrane suitable for uranium extraction from seawater. This invention develops a uranium adsorption membrane containing sulfonic acid groups and amide groups. The sulfonic acid groups, which specifically recognize uranium, and the hydrophilic amide groups endow the membrane adsorption material with excellent uranium adsorption kinetics and adsorption efficiency. Experimental results show that the sulfonated aromatic uranium adsorption membrane prepared using the method of this invention has an equilibrium adsorption time of 120 min and a uranium enrichment efficiency of 95.8%.

The invention provides a layered silicate material, a silicate molecular sieve and a preparation method and application thereof, and belongs to the technical field of molecular sieves. According to the layered silicate material provided by the invention, the ratio of Si to heteroatoms is highly adjustable, the layered silicate material has good thermal stability and hydrothermal stability, a 12-membered ring opening is formed in a silicate layer, and the layered silicate material can be used as a precursor for preparing a molecular sieve to generate a three-dimensional silicate molecular sieve through topological condensation; the monolayer silicate nanosheet can also be obtained through layer stripping treatment and is used for preparing an oriented film, an adsorbent, a catalyst, an ion exchanger, a nanofiltration material or a seawater desalination film and the like. The framework of the silicate molecular sieve provided by the invention has eight topology independent atoms, the crystal structure of the silicate molecular sieve has a 12 * 12 * 12-membered ring three-dimensional cross duct system, and the silicate molecular sieve can be used as a catalyst, an ion exchanger or an adsorbent.

This utility model discloses a membrane adsorption and conveying fixture, including a fixed frame with a conveyor belt rotatably mounted on it. An adsorption assembly is mounted on the conveyor belt, and the adsorption assembly includes a fixed housing, a driving component, a base plate, and adsorption components. The fixed housing is mounted on the conveyor belt, the driving component is mounted on the fixed housing, and the base plate is located at the output end of the driving component. Multiple adsorption components are arranged on the base plate, and a flattening component is mounted on one side of the base plate. Thus, through the integrated design of adsorption and flattening functions, adaptive pressure control, and a stable limiting structure, the fixture achieves coordinated operation of "stable adsorption - precise conveying - real-time flattening" during membrane conveying, significantly improving the efficiency and quality of membrane processing.

The utility model discloses a filter membrane filtration experiment device capable of automatically feeding. The filter membrane filtration experiment device comprises a filter membrane carrier, a filter membrane adsorption assembly, a sand core seat, a sealing seat, a liquid inlet assembly and a vacuum suction filtration assembly, a plurality of filter membranes are stored in the filter membrane carrier, and the filter membrane adsorption assembly is used for adsorbing the filter membranes on the filter membrane carrier and transferring the filter membranes to a liquid inlet of the sand core seat; the sealing seat is arranged on the pressing driving assembly, the interior of the sealing seat is hollow, the sealing seat and the liquid inlet of the sand core seat are oppositely arranged, the end, opposite to the sand core seat, of the sealing seat is open, the pressing driving assembly is used for driving the sealing seat to press and seal the liquid inlet of the sand core seat, and meanwhile, the sealing seat presses the filter membrane and is communicated with the interior of the sand core seat; the liquid inlet assembly is communicated with the interior of the sealing seat and is used for conveying to-be-filtered liquid into the sealing seat; the vacuum suction filtration assembly is communicated with the interior of the sand core seat and is used for vacuumizing the interior of the sand core seat; and liquid to be filtered is filtered by the filter membrane through vacuum force and then enters the sand core seat.

The application discloses a low-concentration gas enrichment and membrane repair self-circulation device, which comprises a kettle body, a guide channel and a turnover mechanism; the kettle body is internally divided into an enrichment area and a repair area; a membrane adsorption separation module is arranged in the enrichment area, and the membrane adsorption separation module comprises an adsorption membrane; a membrane self-repair module is arranged in the repair area, and the membrane self-repair module comprises a cleaning material; the guide channel is used for guiding the decomposition products of the cleaning material to enter the adsorption membrane in the enrichment area; a valve for controlling opening and closing is installed on the pipeline of the guide channel; a solar energy driving module is inlaid on the outer wall of the bottom of the kettle body and is used for providing heat energy for the cleaning material; and the turnover mechanism can drive the kettle body to overturn and stand upside down. The low-concentration gas is efficiently treated and the self-repair function of the membrane is realized by utilizing heat energy to drive the cleaning material to automatically clean the impurities on the surface of the membrane, so that the service life of the membrane is prolonged, the artificial maintenance cost is reduced, the service life of the membrane is prolonged, and the device is environment-friendly and safe.

The application provides a method for adsorbing and purifying scandium based on a graphene oxide layered membrane, and the method comprises the following steps: after adjusting the pH of a scandium-containing solution, using a modified graphene oxide layered membrane to adsorb and filter the scandium-containing solution; after using an EDTA-containing buffer solution to flush the modified graphene oxide layered membrane, using an acid solution to flush the modified graphene oxide layered membrane to obtain a scandium-rich solution. The scandium-containing solution is adsorbed and filtered by using the modified graphene oxide layered membrane, and scandium ions and part of impurity ions are intercepted on the surface of the membrane, so that the scandium and the impurity ions are preliminarily separated; then the modified graphene oxide layered membrane is flushed by using the EDTA-containing buffer solution; finally, the high-purity scandium-rich solution can be obtained by flushing with the acid solution.

The utility model discloses a double-area vacuum adsorption platform device of a 3D printer, and belongs to the field of 3D printing. Comprising a platform main body, and a first PEI membrane adsorption assembly and a second PEI membrane adsorption assembly which are arranged on the platform main body. The device has the beneficial effects that through the independent design of the first PEI membrane adsorption assembly and the second PEI membrane adsorption assembly and the combination of the dense grooves and the square bulges on the adsorption surfaces, the uniform distribution of negative pressure and the flexible control of double regions are realized. The configuration of the integrated pipe, the three-way valve and the four-way valve simplifies the gas circuit connection of the first PEI membrane adsorption assembly, and the arrangement of the first valve and the second valve facilitates the independent operation of the gas circuit by a user. In addition, the silica gel plate is externally connected with a heating device, the whole platform can be heated, vacuum adsorption is added after heating, and deformation of materials can be further reduced. According to the embodiment, the structure is reasonable, operation is convenient and fast, and the adsorption efficiency and printing quality of 3D printing can be remarkably improved.

The invention is applicable to the technical field of biology, and provides a pretreatment method of a protein sample and a peptide diagram analysis method, which comprises the following steps: (a) carrying out a heating denaturation reduction reaction on the protein sample in the presence of a denaturing agent and a reducing agent, and then adding an alkylation reagent to carry out a dark alkylation reaction; (b) filling the reaction liquid into a dialysis bag, and carrying out multiple times of liquid change dialysis; (c) concentrating the dialyzed sample solution, and adding a protease solution to carry out enzymolysis reaction; (d) adding an acid solution into the solution after enzymolysis to terminate the reaction, centrifuging and taking supernate, the method overcomes the problem of loss of a membrane adsorption sample caused by a traditional ultrafiltration method, is particularly suitable for pretreatment of a trace protein sample, reduces the use amount of the sample and the experiment cost, can be compatible with synchronous digestion reaction of multiple enzymes, and has a wide application prospect. The pretreated sample is analyzed by LC-MS / MS, a chromatogram with good peak shape and good separation degree can be obtained, and reliable data is provided for quality control and structural identification of protein drugs.

The utility model belongs to the field of diamond film processing and preparation, and discloses a clamp. The clamp comprises a base, a suction cup column and a suction cup, the top of the suction cup is arranged to be a spherical adsorption face, the bottom of the suction cup is fixed to the base through the suction cup column, an air exhaust hole is formed in the base, a first air channel is formed in the base, a second air channel is formed in the suction cup column, and an air cavity is formed in the suction cup. An adsorption hole is formed in the spherical adsorption surface, and the air exhaust hole is communicated with the adsorption hole through the first air channel, the second air channel and the air cavity. The clamp is simple in structure and easy and convenient to operate, the diamond vibrating diaphragm is adsorbed on the suction cup in a negative pressure adsorption mode, and the problem that the vibrating diaphragm is broken in the machining process can be effectively solved.

The utility model discloses a film path stability adjusting device for a sleeve film, relates to the technical field of sleeve films, and provides the following scheme aiming at the problems that a sleeve film roll cannot be quickly installed and fixed, a sleeve film is adsorbed on a conveying belt only by utilizing wind power, the sleeve film cannot be conveyed in time and the practicability is low in the background technology. Comprising a bottom plate, a placing mechanism is arranged at the top of the bottom plate, and the placing mechanism comprises two side plates fixedly arranged on the outer wall of the top of the bottom plate, two supporting seats fixedly arranged on the outer walls of one sides of the two side plates, two fixing seats connected to the outer walls of the tops of the two supporting seats through bolts, and a mounting roller; a conveying assembly is arranged above the bottom plate and comprises a fixing shaft. The sleeve film winding drum can be quickly disassembled and assembled, meanwhile, the sleeve film can be prevented from being adsorbed when being conveyed, the sleeve film can be conveyed in time, and practicability is improved.