817 results about "Moisture" patented technology

The present invention relates to a humidity sensor, and more particularly, to a resistance film-type real-time chromogenic humidity sensor produced with a polyelectrolyte thin film. The humidity sensor according to the present invention is a chromogenic hygrometer in which a polyelectrolyte nano thin film that absorbs moisture is formed on a reflective layer, and the nano thin film varies terms of color and electrical resistance as moisture is absorbed and the thickness varies. The hygrometer according to the present invention is a dual-function hygrometer, the color and resistance of which vary. Provided is the chromogenic hygrometer in which the sensor made using a PSS-b-PMB thin film varies in color between purple, blue, green, yellow, orange, and red according to humidity at a very high response speed of within one minute.

Methods and apparatuses for drying electronic devices are disclosed. An exemplary method comprises: initiating a drying operation in a drying apparatus comprising: generating a first air flow through a first air channel, routing, a moisture from an electronic device to a moisture-absorbing apparatus, absorbing, using the moisture-absorbing apparatus, the moisture from the electronic device, determining a first humidity and a second humidity, executing, based on the first humidity and the second humidity, a first computing operation, exhausting the first air flow to an exterior of the drying apparatus, determining a third humidity, and executing, based on the third humidity, a second computing operation.

The application discloses a method for improving the quality and moisture content distribution of bean curd by soaking and using water for pulp grinding, and comprises the following steps: (1) pretreatment: accurately weighing CaCl2, MgCl2, KCl and cellulase according to different proportions, dissolving in deionized water, and preparing for use; (2) adjusting pH value: taking sodium bicarbonate, dissolving in the prepared deionized water, and adjusting the pH value; (3) raw material preparation: weighing 500g of yellow beans, pouring into the prepared deionized water in step (2), and soaking for about 8-10h; (4) bean curd preparation: preparing the bean curd product rich in various ions according to the process flow by using the soaked yellow beans. The application has the advantages of simple process, low production cost and suitability for industrial production, and solves the problem that the quality of bean products is different due to different water qualities in different regions for yellow bean processing enterprises.

The invention discloses a semi-solid-state complex no-tillage dry direct seeding method for crop seeds. The no-tillage dry direct seeding method comprises the following steps: S1, keeping a water layer of 1cm-5cm in a ditch, and paving straws obtained by harvesting preceding crops on a ditch surface; S2, applying a base fertilizer on the ditch surface paved with the straws and cleaning the ditch; S3, seeding the crop seeds on the ditch surface, and mixing the crop seeds with semi-solid-state biomass materials, a compound fertilizer and a biopesticide before seeding before seeding seeds, wherein the mixing mass ratio is that the crop seeds to the semi-solid-state biomass materials to the biopesticide is (1-10) to (70-800) to (1-3), and the moisture content of the semi-solid-state biomass materials is 40%-80%; and S4, after seeding the seeds, keeping the ditch surface at a dry state for 3-7 days. According to the semi-solid-state complex no-tillage dry direct seeding method, tillage and combustion of winter crop straws are not carried out, a whole land of field immersing water is not used for irrigation and the water immerses after the seeding, and the biological benefits are obvious; the working energy consumption is reduced, stubbles are not killed by pesticides, haze is reduced and the irrigation water is reduced.

The invention discloses a method and a device for identifying moisture and mildewing of a wall body and electronic equipment. The method comprises the steps that wall surface data are acquired, and the wall surface data comprise a visible light image and infrared thermal imaging data of a wall surface; a candidate area image is determined from the visible light image, and the candidate area image is a moist and mildewed area determined based on color features of the visible light image; a target area image is determined from the candidate area images according to the infrared thermal imaging data, and the target area image is a candidate area image with the confidence coefficient meeting a preset threshold value; and identifying the target area image by adopting an identification model to obtain a moisture and mildew identification result of the wall surface. The technical problem that the recognition precision and adaptability are limited due to the fact that the related technology only depends on a single data source in the process of recognizing the moisture and mildewing of the wall is solved.

The utility model relates to the technical field of carton structures, in particular to a waterproof and moistureproof coating carton structure, which comprises a carton body and is characterized in that at least two pairs of oppositely arranged double-layer folding cover plates are arranged at the top of the carton body, soft sealing strips are arranged on the long edges of the periphery of the top of the carton body, a moistureproof lining partition plate is arranged in the carton body, and the waterproof and moistureproof coating carton structure is arranged in the carton body. According to the utility model, a multi-layer structure is adopted to realize omnibearing water resistance and moisture resistance, the surface of the box body is coated with a polyurethane waterproof coating, and the top of the box body is provided with a double-layer folding cover plate and a sealing strip to reinforce sealing; honeycomb PP plastic partition plates are arranged inside to achieve dry and wet isolation. The bottom adopts a waterproof base matched with an arc-shaped diversion trench to discharge accumulated water; a disposable humidity sensing label is arranged to monitor humidity in real time; the cover plate is formed by compounding craft paper and PE coated paper, so that the cover plate is high in strength and moisture-proof; the handle holes are provided with double-layer reinforcing ribs to improve the bearing capacity. The structure integrates waterproof, moisture-proof and load-bearing functions and the like, and meets the use requirements of complex environments.

The invention belongs to the technical field of industrial process control, and particularly relates to a drying device temperature and humidity cooperative control method based on a multi-agent system, and the method comprises the steps: dividing the internal space of a drying device into independent agent regions, and obtaining a denoised temperature observation value and a denoised humidity observation value through an integrated sensor array; based on the dynamic deviation between the observed value and the expected value, intelligent agent node deviation potential energy reflecting the environment unbalance momentum is obtained; establishing a neighborhood topological structure by using the centroid coordinates, and obtaining a collaborative flux compensation amount based on a potential energy difference cumulant between a current area and an agent area in a neighborhood and in combination with a temperature change acceleration; and mapping the collaborative flux compensation quantity into a frequency output value of the heating unit and a rotating speed output value of the moisture removal fan so as to realize synchronous adjustment of an actuator. The problems that a large-volume drying cavity is uneven in room temperature and humidity distribution and extremely prone to oscillation are solved, and the consistency of the material drying quality is guaranteed.

The invention relates to the technical field of moisture content measurement, and discloses a corrugated board moisture content measurement method and system, and the method comprises near infrared spectrum data, microwave transmission data and acoustic vibration data; calculating a spectral feature vector; constructing a microwave response matrix; determining an acoustic damping coefficient; calculating stability indexes of the spectral feature vector, the microwave response matrix and the acoustic damping coefficient in a preset time window, and calculating a consistency index and a confidence coefficient weight; fusing the spectral feature vector, the microwave response matrix and the water content corresponding to the acoustic damping coefficient through a Kalman filtering algorithm, and outputting initial water content; dynamically adjusting a process noise covariance matrix of Kalman filtering, and when the residual error of any data source exceeds a preset statistical threshold value, resetting the confidence coefficient weight corresponding to the data source to zero; and repeatedly executing fusion, and outputting the water content. According to the method, three measurement means of near infrared, microwave and acoustics are adopted, the water content state of the corrugated board can be represented more comprehensively, and the water content measurement precision is improved.

The invention discloses a functional food production control method and system based on AI vision, particularly relates to the field of image processing, and is used for solving the problem of identifying, regulating and controlling uneven moisture in the drying process of existing functional food. The method comprises the following steps: acquiring a food surface image sequence and cavity environment temperature and humidity data in a drying process in real time, performing feature extraction on an image, calculating surface gray dispersion, texture roughness entropy and color distribution offset, generating a drying feature sequence, and establishing a mapping model with a moisture content reference; lossless estimation of sample moisture content distribution is realized, so that a dry abnormal sample is identified; and extracting a drying rate deviation block, calculating a drying deviation amplitude, generating a drying uniformity index, and dynamically adjusting the air speed, the heat flow, the conveying speed and other parameters of the drying cavity according to the index until the drying uniformity index returns to a set range, thereby realizing accurate control and homogenization of the functional food drying process.

The invention relates to the technical field of granary management, in particular to a granary multi-parameter collaborative sensing data management method and system. Comprising the steps of collecting upper-layer environment parameter data of an upper-layer area in a granary, core environment parameter data of a core area in the granary and external environment parameter data outside the granary; according to the external environment parameter data, the sudden drop situation of the external environment temperature is identified; calculating a humidity accumulation rising trend in the upper-layer environment parameter data and a temperature stability trend in the core environment parameter data; on the basis of the sudden drop situation, associating a humidity accumulation rising trend with a temperature stability trend, and judging a moisture migration risk; and generating moisture migration risk early warning information according to the moisture migration risk. The technical problem that when an existing granary data management method is used for processing complex and non-local moisture migration phenomena driven by external environment factors, multi-source data cannot be effectively associated, and consequently early warning is not timely is solved.

Methods and apparatuses for drying electronic devices are disclosed. An exemplary method comprises: initiating a drying operation in a drying apparatus comprising: generating a first air flow through a first air channel, routing, a moisture from an electronic device to a moisture-absorbing apparatus, absorbing, using the moisture-absorbing apparatus, the moisture from the electronic device, determining a first humidity and a second humidity, executing, based on the first humidity and the second humidity, a first computing operation, exhausting the first air flow to an exterior of the drying apparatus, determining a third humidity, and executing, based on the third humidity, a second computing operation.

The invention provides a rock-soil moisture content and permeability testing system and method based on electromagnetic waves and infrared rays, and particularly relates to the technical field of geotechnical engineering testing and multi-source signal detection. According to the test system, construction of a rock-soil permeability experiment is realized through a rock-soil sample permeability test platform, the electromagnetic wave detection module realizes perception of a water-containing state in rock-soil, and the infrared thermal imaging module realizes perception of a wet boundary and seepage expansion characteristics of a rock-soil surface. The data acquisition and control module realizes integral control of a penetration experiment and acquisition of dielectric characteristics and infrared images, the signal fusion and inversion module realizes fusion of the dielectric characteristics and the infrared images and joint inversion of dynamic moisture content and penetration performance, and the result processing and visualization module realizes visual display of an inversion result; the method has the remarkable advantages of non-destructiveness, real-time performance, high spatial resolution, high adaptability, intelligent processing capacity and the like, and comprehensive characterization of the permeability behavior and the moisture content evolution process of the rock and soil sample is achieved.

The utility model relates to the technical field of temperature measurement cables, and provides a core-replaceable temperature, humidity and water integrated detection cable which is used for being installed in a silo to detect temperature, humidity and moisture data, and an outer sheath is provided with outer air holes; the inner core tube is detachably arranged in the outer sheath, the inner core tube is provided with an inner vent hole, the inner vent hole is communicated with the outer vent hole, and the inner core tube is configured to axially slide relative to the outer sheath so as to be inserted into or separated from the outer sheath; and the detection chip is arranged in the inner core tube and is used for detecting temperature and humidity data of gas in the silo and transmitting the temperature and humidity data to the data acquisition device. According to the technical scheme, the technical problem that only the outer sheath and the chip can be integrally replaced when the detection cable is replaced in the prior art is solved.

Disclosed is a reusable moisture retaining article 100 of or for use with an undergarment to be positioned adjacent a body of a user and to absorb and retain moisture from the user. The article comprises a reusable moisture absorbing and retaining insert 110 at least a portion of which is exposed or configured to be exposed to define an inner layer of the article that is configured to be in direct contact with the user's body to absorb moisture. An outer cover 120 defines an outer layer of the article. An adhesive layer 130 interconnects the insert 110 and the outer cover 120. The insert 110 and the outer cover 120 are bonded together with the adhesive layer 110 by applying a compressive force.

The invention provides an automatic monitoring and management method and system for high-humidity vegetable protein meat processing, and the method comprises the steps: carrying out the correction processing of a light path transmission loss coefficient according to a spectral data matrix, employing a temperature compensation correction factor and a humidity influence correction parameter to eliminate environmental interference, extracting the position coordinates of a characteristic peak through the first-order derivative transformation, and carrying out the calculation of the position coordinates of the characteristic peak; obtaining standardized spectral characteristic data subjected to environment correction; a sampling time interval sequence is constructed through component concentration data of each detection point, a signal intensity attenuation curve is adopted to correct the time drift influence, interpolation calculation is performed on component concentration gradient distribution according to space coordinate positioning information, and a space distribution diagram reflecting the whole component state of the raw material is obtained. The defects of traditional chemical analysis and manual judgment in the raw material treatment process are overcome, the automation level and efficiency of vegetable protein meat production are improved, and meanwhile, the raw material proportioning accuracy is improved.

The invention relates to the technical field of food packaging, in particular to a dual-antioxidant packaging film as well as a preparation method and application thereof. The dual antioxidant packaging film disclosed by the invention is prepared from the following components in parts by mass: 3.2 to 4 parts of starch, 0.8 to 1 part of glycerol, 0.8 to 1 part of polysaccharide, 0.02 to 0.16 part of berberine / anthocyanin self-assembled nanoparticles and 93.98 to 95.2 parts of water. The packaging film prepared by the invention is uniform in structure, has good mechanical properties and moisture and oxygen barrier properties, shows an intelligent slow release characteristic in a pH value change or oxidation environment, can realize controllable release of the tea tree essential oil, and significantly improves the antioxidant and antibacterial activity of the film. The material source is natural, renewable and biodegradable, and the environment-friendly fresh-keeping packaging material is suitable for fresh-keeping packaging of foods such as fruits, vegetables and meat products, and has good environment friendliness and industrial application prospects.

The utility model discloses a prevent material loss's moisture removal pipeline relates to cement off the market catalyst production technical field, including exhaust main pipeline installation on support frame, one end of exhaust main pipeline is connected with negative pressure machine, the other end of exhaust main pipeline is sealed state, exhaust branch pipeline one end is connected with exhaust main pipeline lateral wall, exhaust branch pipeline includes first pipeline and second pipeline, one end of first pipeline is connected with exhaust main pipeline lateral wall, the other end of first pipeline is connected with one end of second pipeline, the other end of second pipeline is connected with moisture removal equipment, the included angle of the axis of first pipeline and second pipeline's interface department is acute angle. Through setting up the corner and height of moisture removal pipeline, thereby overcome small material extremely easy to move under the strong negative pressure airflow drive, finally with moisture together is sucked into moisture removal pipeline, causes the defect of material loss.

The invention discloses an intelligent humidity control method and system for bio-organic fertilizer fermentation, and belongs to the field of humidity control. The method comprises the steps that a stacking area is divided into basic units, environmental parameters and material characteristic parameters of each unit are periodically obtained, and corresponding humidity regulation and control time delay and compensation coefficients are calculated; dynamically combining the basic units by using a clustering algorithm to obtain partitions, and constructing a coupling influence matrix by considering moisture migration between the partitions; an improved particle swarm algorithm is adopted, the inertia weight is adjusted in a self-adaptive mode according to the humidity regulation and control time delay of each partition, and the optimal fuzzy parameter of each partition is obtained; the preset PID parameter is corrected based on the coupling influence matrix and the humidity regulation and control time delay and compensation coefficient of each partition, the optimal PID parameter of each partition is obtained, the humidity control quantity of each partition is obtained through fuzzy PID control, the problems of regulation and control lag and uneven local humidity in existing humidity control are solved, and the humidity control efficiency is improved. And self-adaptive regulation and control and differential control are realized.

The utility model discloses a total moisture testing system which comprises a transfer module, a division module, a drying oven weighing module, a rejected sample recycling module, a sample bottle receiving, sending and storing module and a control assembly, the division module is used for dividing a sample in a sample bottle into a test sample and a prepared sample, loading the test sample into a tray, and loading the prepared sample into a bottle; the oven weighing module is used for temporarily storing a sample tray and drying and weighing the sample tray filled with a test sample, and the test sample subjected to constant weight treatment is changed into a rejected sample; the discarded sample recovery module is used for recovering discarded samples and cleaning sample plates; the sample bottle receiving, sending and storing module is used for receiving, sending and storing sample bottles filled with original samples and prepared samples; the transfer module is used for transferring the sample bottles and the sample trays among the stations; the control assembly is used for controlling all the modules to work. The total moisture testing system disclosed by the utility model has the advantages of high automation degree, high testing efficiency, convenience in sample preparation and high testing accuracy.

This invention discloses a method and system for detecting moisture content in the baking process of battery cells based on multi-sensor time-series features, relating to the field of lithium-ion battery cell manufacturing technology. The method includes: acquiring multiple target sensor data and corresponding moisture content labels for each baking step throughout the entire process cycle; preprocessing the target sensor data, followed by global feature extraction and local feature extraction; global feature extraction for all baking steps, and local feature extraction for each vacuum baking step within the baking process; optimizing and weighting the extracted features; constructing a moisture content detection model based on the LightGBM architecture, and training the moisture content detection model based on the optimization results, weight allocation results, and moisture content labels; and using the trained moisture content detection model to detect the moisture content during the battery cell baking process. This invention possesses technical advantages such as good real-time detection, comprehensive coverage, and high accuracy.

The utility model relates to the field of firecracker production, in particular to a damp-proof storage device for firecracker production. Existing equipment is difficult to adsorb and dry air entering a goods shelf, so that the air containing high water vapor is directly contacted with firecrackers without being treated, and the damp-proof effect on the firecrackers is poor. A damp-proof storage device for firecracker production comprises a storage cabinet, and a cabinet door is rotationally connected to the storage cabinet. One movable bottom plate moves downwards, so that the used drying agent in the placing frame falls onto a guide plate frame; one movable bottom plate moves upwards to close one compartment of the placing frame, and the other movable bottom plate moves upwards to close one compartment of the placing frame, so that the drying agent in the storage bin can fall into the just closed compartment of the placing frame, the drying agent in the compartment of the placing frame can be automatically replaced, air blown out by the fan can pass through a new drying agent, and the air blown out by the fan is kept dry; therefore, the damp-proof effect of the firecracker is improved.

The invention relates to the field of terminal boxes, and discloses an outdoor terminal box and an anti-condensation system, and the outdoor terminal box comprises a main body part; the threading part is arranged in the main body part; a moistureproof dehumidification part arranged in the main body; wherein wiring is facilitated and moisture invasion is blocked through the threading part, heating, heat preservation and dehumidification are carried out on the interior of the main body part through the moisture-proof and dehumidification part, and condensation prevention is achieved; a worker does not need to climb to the position right below the device, lie on his / her head and slowly find a hole for threading, the wiring difficulty is reduced, the wiring workload is reduced, the wiring efficiency is improved, moisture and small animals can be prevented from invading through the wiring position, heating, heat preservation and dehumidification can be achieved, condensation prevention is achieved, and equipment in a box body is prevented from being in a humid environment; and power supply reliability is ensured.

A luminaire assembly comprising: a housing; a moisture intrusion guard including an orifice and at least one slot; a cover coupled to the housing, the cover comprising a retention assembly including at least one protrusion passing through at least one slot of the moisture intrusion guard, the retention assembly locking the cover to the housing.

This application relates to the field of food processing technology, and in particular to a processing method and system for daylily snack food. The method includes raw material grading, graded blanching and color protection, gradient dehydration, moisture balancing, directional shaping, vacuum impregnation and seasoning, and low-temperature vacuum drying steps, along with corresponding automated equipment. By dynamically matching process parameters with raw material quality characteristic vectors, combined with feedback control of moisture migration rate during dehydration, the method effectively maintains stable texture and color. Directional shaping imparts a standardized geometric shape to the product, improving its adaptability for packaging and transportation. Vacuum impregnation and low-temperature final drying ensure uniform flavor and safe water activity. This application effectively solves problems such as deterioration of texture, nutritional fluctuations, monotonous form, and unstable quality in traditional daylily processing.

The invention relates to the field of technical analysis and to determining for construction purposes the optimum moisture content and maximum density of natural and man-made soils under static compaction. The essence of the invention consists in compacting a first soil specimen after first determining the initial moisture content thereof and, if necessary, adjusting same by adding water in accordance with recommended values for the given type of soil. A compaction mold cylinder and a lower liner are then placed on 18-20 mm high support stands on a level surface, a weighed amount of the soil under examination is placed in the compaction mold cylinder, the cylinder is positioned on a base plate of a compactor, a top plate of the compactor is brought into contact with the upper end of the cylinder and the compactor is set to a 20 mPA loading mode which is maintained for 5-10 minutes. Loading is ceased, the compaction mold is removed from the compactor, the compacted specimen is extruded and the volume thereof is calculated, the specimen is broken up, a representative sample is taken and weighed on electronic scales with an accuracy of up to 0.01 before being dried and reweighed. On the basis of the data obtained, the damp soil density and the dry soil density are calculated according to given formulae, and the data obtained are entered into a table and noted on a graph. A second soil specimen is compacted, the moisture content of which is increased by 1%, the specimen is placed in the compaction mold, placed under a 20 mPA load in the compactor and held for 5-10 minutes, after which loading is ceased, the compaction mold is removed from the compactor, the compacted specimen is extruded, the volume thereof is calculated, the specimen is broken up, a representative sample is taken and weighed on electronic scales with an accuracy of up to 0.01 before being dried and reweighed, the moisture content of the soil and the dry soil density are calculated and the d

The invention discloses a cooking electric appliance and a control method. The cooking electric appliance comprises a cavity provided with a cooking cavity and an opening, and the opening is communicated with the cooking cavity; the door body is rotatably connected with the cavity and is used for opening and closing the cooking cavity; and the timing assembly comprises a timer and a pushing piece, the timer is connected with the pushing piece, and the timer is used for setting the moisture removal duration and enabling the pushing piece to enable the door body to open the opening during the moisture removal duration. According to the cooking electric appliance, the timer can enable the pushing piece to enable the door body to open the opening during the moisture removal time, and moisture in the cooking cavity can be discharged from the opening during the moisture removal time, so that the food cooking effect can be improved to a certain extent, and the use experience problem that steam faces the face is solved.

The application discloses a soil layer moisture content real-time discrimination and regulation powder jet pile drill bit and a powder jet pile construction method, and relates to the technical field of geotechnical engineering. The drill bit comprises a drill rod, a plurality of moisture content detection units, a processor and the like. The rod wall of the drill rod is provided with a plurality of stirring blades. The plurality of moisture content detection units are arranged at different height positions of the drill rod and are used for detecting the moisture content of soil layers at different depths in real time. The upper rod wall of the drill rod is provided with a water injection port, and the lower rod wall is provided with a dust injection port. The processor is connected with the moisture content detection unit in signal and is used for adjusting the water injection pressure and the dust injection pressure according to the measured moisture content. The application can realize the moisture content regulation in the powder jet pile construction process, ensure the strength of the pile body of the powder jet pile in the soil layer with low natural moisture content, and has important significance for improving the construction quality of the powder jet pile and expanding the application range of the powder jet pile.

The invention provides a rapid salinity and moisture determination method based on ultrasonic synergistic tumbling and pickling beef, which comprises the following steps: determining the salinity and moisture content in the ultrasonic synergistic tumbling and pickling beef by using a traditional physical and chemical analysis method, and obtaining corresponding predicted values by depending on a Fick second law diffusion model; correlation analysis is carried out on the measured value and the predicted value, and a diffusion model with good fitting is established; establishing a mathematical model between different ultrasonic powers of the ultrasonic synergistic tumbling equipment and mass transfer coefficients of salt and water, and enabling the ultrasonic powers to be in one-to-one correspondence with the mass transfer coefficients of salt and water; and combining the mathematical model with the diffusion model to quickly predict the content of salt and moisture in the beef pickled for the specified time under the specified ultrasonic power. The method disclosed by the invention is convenient and efficient, can provide support for rapid salt and moisture determination and process optimization for enterprises, is beneficial to popularization of an ultrasonic synergistic tumbling pickling technology in meat pickling, and meets the standardized production requirements of meat enterprises.

The utility model discloses a kind of foldable layered multifunctional fruit boxes, including the box body of circular and top end open, the top end of box body is detachably installed with box cover, the top end of box cover and the bottom end of box body are respectively fixedly connected with upper bellows and lower bellows, the top end and bottom end of upper bellows and lower bellows are respectively fixedly connected with upper closure plate and lower closure plate, and the utility model relates to fruit box technical field.The multifunctional fruit box of foldable layered, by setting upper bellows and lower bellows, the fruit box is in use, fruit is contained in the inside of box body, then pull out upper closure plate and lower closure plate, upper bellows and lower bellows can be unfolded, then add ice block to the inside of two by two ice-adding mouth, fruit in the inside of box body can be cooled by ice block, prevent fruit from losing too much moisture because of the temperature of weather is too high, play certain degree of fresh-keeping effect.

The invention relates to meat product pressing equipment which comprises a meat pressing rack, a controller is arranged at the top of the meat pressing rack, a material receiving plate is further installed at the top of the meat pressing rack, a driving mechanism is arranged outside the controller, the bottom of the driving mechanism is connected with a pressing mechanism, and the pressing mechanism comprises a positioning cylinder, a pressing piece and a suction piece. The suction part comprises a suction pipe arranged in the pressing part, a partition plate is arranged in the suction pipe, a movable rod is slidably connected to the interior of the suction pipe, a piston plate is fixedly connected to the middle of the movable rod, a plug is fixedly connected to the bottom end of the movable rod, and the top end of the movable rod is fixedly connected to the inner top of the positioning cylinder. A damping ring enabling the movable rod to generate certain sliding resistance is arranged at the top of the suction pipe. The device achieves the beneficial effect of automatically sucking and discharging excessive moisture of meat products in the pressing process, effectively reduces the moisture content of the meat products, facilitates subsequent drying and processing, and prolongs the storage time of the meat products.