60results about How to "Not easy to compress" patented technology

The invention relates to an improved method for manufacturing a bamboo / wood recombined material. The method comprises the following steps of: (1) forming the parallel connection between the load of bamboo wood and a high-frequency oscillation circuit of a high-frequency generator; (2) placing a bamboo recombined material or wood recombined material board blank 7 in the space formed among middle pressure boards 5 and among the middle pressure boards, a lower machine frame 1 and a pressure head 10 in the event of processing; and (3) thermally pressing and gluing at high frequency, specifically comprising: (1) preparing for unit materials; (2) drying the unit materials; (3) gumming and drying again; (4) assembling; (5) pre-pressing and packaging; and (6) heating and gluing at high frequency.The method disclosed by the invention has the advantages that: the problem that surface adhesive becomes fragile because of being excessively solidified or the poor gluing phenomenon because core adhesive is not solidified can be avoided; the good gluing quality is achieved by using lower pressure; the formation gluing pressure of the bamboo / wood recombined material is less than or equal to 8 MPa; and the thermal pressing and gluing period is short.

The invention discloses a pressure sensor sealing and pressure stabilizing structure which comprises a sealed mounting cavity, a diaphragm type pressure sensor is arranged in the mounting cavity, twopressure leading pipes are led out of the diaphragm type pressure sensor, the inner ends of the two pressure leading pipes are communicated with the interior of the diaphragm type pressure sensor, theouter ends of the two pressure leading pipes extend out of the installation cavity, the installation cavity is filled with a pressure transmission medium, and the pressure transmission medium is liquid. Compared with the prior art, when the internal pressure of the diaphragm type pressure sensor is too large, the diaphragm type pressure sensor has an outward separation trend, and a liquid pressure transmission medium in the mounting cavity is not easy to compress, so that the separation trend of the diaphragm type pressure sensor can be prevented to a certain extent, and the diaphragm type pressure sensor is prevented from cracking too fast.

The invention discloses a corn straw silage feed preparing technology. A corn straw silage feed is prepared through the steps of preparing a silage pond, collecting and sorting silage feed raw materials, performing cutting-up, adding a feed additive, performing loading, closing over dry substances, performing film coating pretreatment, and performing earth coating for sealed storage. According tothe corn straw silage feed prepared by the corn straw silage feed preparing technology disclosed by the invention, the content of a hazardous substance, namely flavatin, in the feed is reduced, the mildew and rot rate of the feed is reduced, and the mouth feel and the quality of the feed are improved; besides, the silage feed is not liable to decompose due to silage, the silage loading void content is reduced, and favorable anaerobic environment can be created for lactic acid bacteria fermentation, so that fermentation is facilitated; a layer of the dry substances are covered, so that the situation that a large quantity of nutrient components run off along with moisture is avoided, nutrient loss is reduced, and the fragrance of lactic acid of the silage is improved; and the feed additive is added, so that the quality of the silage feed can be improved, the food consumption of the feed is increased, and the palatability of the feed is strengthened.

The invention discloses a drive device based on a gas-liquid combination spring and a valve actuator. The drive device comprises the actuator and a power cylinder. The power cylinder is installed on the actuator and provided with the gas-liquid combination spring. The gas-liquid combination spring comprises a pressure container tank. A gas input opening is formed in the upper end of the pressure container tank. A compressed gas cavity is formed in the upper portion in the pressure container tank, and a hydraulic oil cavity is formed in the lower portion of the pressure container tank. The compressed gas cavity is filled with compressed gas. The hydraulic oil cavity is filled with hydraulic oil. A hydraulic oil outlet is formed in the lower end of the pressure container tank. The gas-liquid combination spring with the same function replaces a traditional metal spring or a metal spring cylinder only serving as a valve actuator. The structural design, the manufacturing technology, site replacement, breakdown maintenance, the actuator drive valve application efficiency and the work reliability of the gas-liquid combination spring are improved greatly, and the manufacturing cost and the installing work difficulty are reduced greatly.

The invention relates to the field of gear machining and particularly discloses a gear extrusion forming device. The gear extrusion forming device comprises a rack, an upper mould mechanism and a lower mould mechanism; the upper mould mechanism comprises a lower sliding hydraulic cylinder, an upper mould base, a squeezing hydraulic cylinder, inflation air cylinders and limiting rings; a punch is fixed to a pushing rod of the squeezing hydraulic cylinder; the limiting rings and the punch are coaxial; the limiting rings can push pistons of the inflation air cylinders to slide; the lower mould mechanism comprises a lower mould, fixing air cylinders and tooth moulds; the lower mould comprises a plurality of arc-shaped blocks; the fixing air cylinders communicate with the inflation air cylinders; piston rods of the fixing air cylinders are fixed to the arc-shaped blocks; tooth mould grooves are formed in one sides, far away from the fixing air cylinders, of the arc-shaped blocks; the toothmoulds are detachably connected with the tooth mould grooves; and through grooves allowing the piston rods of the fixing air cylinders to pass through are formed in the limiting rings. The damage of agear can be reduced.

The invention discloses a valve actuator based on a gas-liquid combined spring. The valve actuator comprises an actuator body and a power cylinder; the power cylinder is installed on one side of the actuator body, and a gas-liquid combined spring cylinder is arranged on the other side of the actuator body and comprises a spring cylinder body, a spring piston and a spring piston rod; the spring piston rod is arranged in the spring cylinder body, and the spring piston is fixedly arranged on the spring piston rod; a gas-liquid combined spring device is arranged on the spring cylinder body and comprises a pressure container tank, and a gas input opening is formed in the upper end of the pressure container tank; a compressed gas cavity and a hydraulic oil cavity are formed in the upper portion and the lower portion of the interior of the pressure container tank, the compressed gas cavity is filled with compressed gas, and the hydraulic oil cavity is filled with hydraulic oil; and a hydraulic oil outlet is formed in the lower end of the pressure container tank.

The invention discloses a prefabricated hollow plate mold. The prefabricated hollow plate mold comprises a bottom plate arranged on a base, side molds and an inner mold part, wherein the side molds and the inner mold part are arranged on the bottom plate; the bottom plate comprises a first bottom plate and a second bottom plate, wherein the first bottom plate and the second bottom plate are arranged in a laminated mode, and a welding hole formed in the second bottom plate is connected with the first bottom plate through plug welding; the plurality of side molds are arranged fixedly on the second bottom plate to form a pouring area on the second bottom plate in a surrounding mode; and the inner mold part is positioned in the pouring area, and the bottom of the inner mold part is fixed on the first bottom plate after passing through a positioning hole formed in the second bottom plate. The prefabricated hollow plate mold is formed by assembling the bottom plates, the side molds and the inner mold part, independent parts can adopt metal components, the manufacturing way of integral forming is not needed, the processing and manufacturing are easy, the structural strength is high, concrete with larger weight can be borne, the mold is not easy to compress or crush, a prefabricated hollow plate can slide out through disassembling the side molds, loosening the inner mold part, and inclining the bottom plates, the demolding is easy, and the processing speed is improved.

The invention belongs to the technical field of shock absorbers, and particularly relates to an shock-proof shock absorber based on a spiral sheet. The shock-proof shock absorber comprises an upper supporting plate, a damping spring, a buffering mechanism, a lower supporting plate, a motor air inlet, a motor air outlet, a motor support, a pneumatic motor, an electric generator and electric generator supports; when the upper supporting plate is impacted, the upper supporting plate can be compressed and move downwards, the damping spring can be compressed when the upper supporting plate moves downwards so that the damping effect can be achieved through the damping spring, meanwhile, the lower supporting plate moves downwards to drive a push rod to move downwards, the push rod moves downwardsto drive tan upper piston plate to move downwards, a lower piston plate is driven to move downwards through the buffer spring, high-pressure helium between the lower piston plate and a correspondingpiston shell can flow into the pneumatic motor through a piston air outlet pipe and the motor air inlet in the downward moving process of the lower piston plate, the gas flowing into the pneumatic motor can enable the pneumatic motor to work, and the pneumatic motor enables the electric generator to generate electricity.

The invention relates to an anti-rotation bolt assembly for electric conduction, which comprises a bolt, which sequentially comprises a bolt cap, a square screw rod and a round screw rod from bottom to top, wherein the bolt cap, the square screw rod and the round screw rod are fixedly connected or integrally formed, and the outer surface of the round screw rod is provided with a thread. The anti-rotation bolt assembly further comprises a wire pressing assembly connected to the circular screw rod in a sleeving manner and being in threaded connection with the circular screw rod; an insulation assembly, wherein the square screw rod is sleeved with the insulation assembly for achieving insulation between the bolt and the shell; and wiring terminal provided with an inner hole matched with the square screw, and the inner control sleeve is connected to the lower portion of the square screw in a sleeved mode and makes contact with the bolt cap. The anti-rotation bolt assembly used for electricconduction and the using method thereof are disclosed. The anti-rotation bolt assembly is easy to disassemble and assemble, simple in structure, and is stable and reliable.

The invention relates to a convenient and rapid pressure grouting method adopting an anchor rod, and belongs to the technical field of foundation engineering. The method comprises the steps that 1, drilling is carried out in a preset position; 2, a primary grouting pipe, a secondary grouting pipe, an exhaust pipe and the anchor rod are wrapped tightly with a woven bag and are inserted into a drilling hole, wherein the distance between the top of the woven bag and the drilling hole is 2.0-3.0 m, the distance between the bottoms of the primary grouting pipe and the secondary grouting pipe and the bottom of the drilling hole is 150-250 mm, and in the length of a anchorage section, a plurality of slurry outlets are formed in the side wall of the secondary grouting pipe, and the opening end atthe bottom of the secondary grouting pipe and the slurry outlets are sealed through adhesive tape; 3, the diameter of the tightly-wrapped woven bag is the same as the diameter of the drilling hole; 4,hole sealing is carried out; 5, primary grouting is carried out; and 6, secondary high-pressure grouting is carried out. According to the convenient and rapid pressure grouting method adopting the anchor rod, effecting grouting and reinforcement of backfilling soil, loose soil and soft clay bodies can be ensured to be realized through the anchor rod, and the anti-pulling force of the anchor rod can be guaranteed. The method has the advantages that waste can be reutilized, general adaptability is achieved, the manufacturing cost is low and the construction is simple and convenient.

The invention provides a medical spring ring and a manufacturing method and using method thereof. At least a part of the spring ring is made from materials of which the rigidity is changeable under the set triggering condition, so that the rigidity of the materials of the part of the spring ring can be changed through exerting the set triggering condition during a surgery or after the surgery, further the rigidity of the medical spring ring can be changed, and the requirement for the softness of the spring ring in the process of a neurological intervention surgery and the requirement for the rigidity of the spring ring after packing is completed can be effectively met.

The invention relates to a moxifloxacin hydrochloride film-coated tablet, which comprises the following components of moxifloxacin hydrochloride, pregelatinized starch, microcrystalline cellulose, croscarmellose sodium and magnesium stearate. The preparation method of a moxifloxacin hydrochloride preparation provided by the invention is simple in method, relatively few in pharmaceutical adjuvants, easy to operate and suitable for industrial production.

The invention relates to the field of road construction, in particular to a construction method of a soft soil roadbed. The construction method of the soft soil roadbed comprises the following steps of (1) clearing ground garbage, leveling the ground, and forming the roadbed; (2) line discharging positioning, press fitting and pile fixing of a prestressed pipe pile; (3) excavating the roadbed to atarget depth, carrying out backfilling by using a filler, and rolling and compacting; (4) paving a sand cushion layer; (5) pouring an asphalt layer; (6) compacting the roadbed: rolling two sides of the roadbed by using a road roller, and then rolling the middle position of the roadbed; and (7) drainage protection treatment: excavating drainage grooves in two sides of the roadbed. The soft soil roadbed construction method has the advantages of being good in stability, capable of reducing settling volume, high in strength and good in drainage effects.

The invention belongs to the technical field of wood processing and particularly discloses a wood grinding device. The wood grinding device comprises a power unit, a grinding unit and a storing unit.The grinding unit comprises an upper grinding roll and a lower grinding roll. The storing unit comprises a storing box and a storing pipe, and the storing pipe is located above the storing box. A falling opening is formed in the upper surface of the storing box, and the upper surface of the other side of the storing box is slidably connected with a sliding plate which is located below the storingpipe. A first spring is connected between the sliding plate and the storing box, and a pushing plate is hinged to the end, close to the grinding unit, of the sliding plate. A second spring is connected between the pushing plate and the sliding plate, and the elastic coefficient of the second spring is larger than that of the first spring. The power unit comprises a communicating pipe and a hydraulic cylinder, and the communicating pipe is loaded with a transmission medium. A first plunger is slidably connected into one side of the communicating pipe, and a second plunger is slidably connectedinto the other side of the communicating pipe. A piston is slidably connected into the communicating pipe, and a piston rod of the hydraulic cylinder is fixedly connected with the piston. The wood grinding efficiency can be improved by using the wood grinding device.

The invention discloses a liquid-filled magnetic sealing zipper carton, and belongs to the technical field of cartons. A magnetic field in a hydraulic magnetic bag can be forced to change by conducting structural innovation on a hollow brace and pressing a liquid bag to fill liquid, and in the initial state, the magnetic field in the hydraulic magnetic bag can normally act on an extending magnetic rod, the extending magnetic rod is forced to extrude a sprocket sleeve to deform and extend in a magnetic repulsion manner, so that the extending magnetic rod is matched with the sprocket groove in a cover plate to achieve high-strength sealing of a box body; at the moment, the hollow brace is difficult to pull open directly, liquid is filled into the hydraulic magnetic bag through the hollow brace in a manner of extruding and pressing the liquid bag during unsealing, and the magnetic field in the hydraulic magnetic bag is forced to be shielded to a certain extent, so that the repulsive acting force on the extending magnetic rod is weakened; and then the extending magnetic rod retracts and moves out of a sprocket groove under the action of elastic force, at the moment, the hollow brace can be normally pulled open for unsealing, and reverse operation can be carried out when packaging is carried out again.

The invention discloses a method for lowering the heavy metal content and the water content in sludge. As for the method provided by the invention, by utilizing modified phosphogypsum and acetic acidto treat the sludge in a combination manner, the heavy metal environment risk and the water content in the sludge are lowered; with addition of the acetic acid and the modified phosphogypsum, the content of heavy metals in a sludge filtrate can be remarkably lowered, the content of heavy metal forms with relatively large risk in a sludge cake can also be obviously reduced, and the heavy metal environment risk is lowered; and meanwhile, as for the sludge subjected to treatment with the acetic acid and the modified phosphogypsum, the dewatering rate is remarkably increased, and the water contentin the sludge after dewatering is lowered to 45 percent or below. The method is simple and feasible in production technology operation and low in production cost, achieves the purpose of treating wastes with wastes by fully utilizing phosphogypsum as a waste resource to perform sludge treatment, improves the dewatering performance of the sludge while improving the heavy metal environment risk ofthe sludge, expands the field of phosphogypsum resource utilization, promotes comprehensive utilization of the phosphogypsum and is wide in application prospect and good in market prospect.

The present invention discloses a differential pressure transmitter. The differential pressure transmitter comprises a pressure leading seat and a sealing cover, the sealing cover covers the pressure leading seat, a diaphragm type pressure sensor is arranged in the sealing cover, a lead port is formed in the top of the sealing cover, the diaphragm type pressure sensor is connected with a signal lead, and the signal lead outwards penetrates out of the lead port. A lead connector is wrapped on the signal lead, the lead connector is arranged in the lead port in a blocking mode and sealed with the lead port, a negative pressure oil injection hole is further formed in the sealing cover, and an oil plug is arranged in the negative pressure oil injection hole. By the adoption of the differential pressure transmitter, when the internal pressure of the diaphragm type pressure sensor is too large, the diaphragm type pressure sensor has the tendency of being separated outwards, a liquid pressure transmission medium in the installation cavity is not prone to being compressed, the tendency of separation of the diaphragm type pressure sensor can be prevented to a certain extent, and a suspension type installation mode is adopted, the isolation diaphragm and / or the welding ring are / is prevented from abutting against the assembly part, the isolation diaphragm cannot deform in the installation process, and the influence of clamping stress on the measurement precision is avoided.

The present invention discloses a multifunctional double-layer pressed steel plate roof and its laying method. Its structure is characterized by that its top layer is pressed steel plate, between steel purlin and pressed steel plate a steel wire-mesh is set, between the pressed steel plate and steel wire-mesh a glass-fiber felt is set, between the steel wire-mesh on the steel purlin and pressed steel plate also is set a heat-insulating plate, and under the steel purlin a pressed steel plate is connected. Besides, said invention also provides the concrete steps of its laying method.

The invention relates to a plastic packaging die and an upper lead strip and a lower lead strip therein. The plastic packaging die comprises the upper lead strip (1) and the lower lead strip (2) for sealing a tube pin (3) of a device in the plastic packaging process of the device; the upper surface of the lower lead strip is provided with a lead slot (20) for accommodating the tube pin; and the upper lead strip is provided with a strip protrusion (10) at the position relative to the lead slot in the lower lead strip, so that the protrusion seals the lead slot from the top and the upper lateral surface of the lead slot when the upper lead strip is pressed on the lower lead strip. The plastic packaging die has the advantages that: the upper and lower lead strips in the plastic packaging diehave opposite inserted structures, and the upper lead strip is provided with the protrusion part at the corresponding position of the tube pin and just pressed on the front side of the tube pin of the device during closing, so that a material is not leaked at the front side and the reverse side, and no residual plastic packaging material is left on the tube pin of the device. In addition, the precision requirement for the tube pin is low on selection of the lead frame, so that the manufacturing cost of the lead frame can be reduced.

The invention relates to the technical field of tubercle bacillus specimen collection instruments, and discloses an improved tubercle bacillus specimen collection device which comprises a bottle body and a bottle cap, the bottom of the bottle body is fixedly connected with a base, and the bottom of the bottle cap is attached to the top of the bottle body. A rubber inner sleeve is fixedly connected to the position, located on the inner side of the bottle body, of the lower surface of the bottle cap, an elastic supporting piece is arranged on the inner side of the rubber inner sleeve, and an outer sleeve ring is fixedly connected to the position, located on the outer side of the bottle body, of the lower surface of the bottle cap. During use, the bottle body is stably placed through the base, bacteria are collected through the bottle body, after bacteria are collected, the bottle cap is stably plugged in the bottle body through the elastic supporting piece of the rubber inner sleeve, the sealing performance of the bottle body is guaranteed, the bottle cap is arranged on the outer side of the bottle body in a sleeving mode through the outer sleeve ring, then the arc clamping block is clamped in the arc clamping opening, and connection between the bottle cap and the bottle body is guaranteed; and the bottle cap can be conveniently taken down while conveniently covering the opening of the bottle body.

The invention discloses a special tool for simultaneous press fitting of checks rings on two sides of an electromagnetic valve energy accumulator. A main valve body is arranged in the center of a bottom plate, and the main valve body is tightly clamped among three limiting blocks; a positioning sleeve mounting plate is horizontally arranged above the bottom plate through a lower linear bearing andmoves up and down, and a tool mounting plate is horizontally arranged above the positioning sleeve mounting plate through an upper linear bearing and moves up and down; the positioning sleeve mounting plate is provided with two through holes which are provided with positioning sleeves; press fitting cutters are fixed to the bottom face of a cutter mounting plate and located above the two positioning sleeves, and each press fitting cutter is provided with a clamping jaw and a plug cover positioning core; a conical surface is machined on the upper hole wall of each positioning sleeve, and the check rings are arranged at the conical surfaces in advance; a magnet is installed at the lower end of each plug cover positioning core, and plug covers are located in the lower ends of the positioningsleeves. By means of the special tool, simultaneous press fitting of the checks rings on the two sides of the electromagnetic valve energy accumulator can be achieved, the effective assembly processis achieved under the conditions that the diameter of the check rings is large, the check rings are not easy to compress and the plug covers need to be assembled together, and the assembling efficiency is greatly improved.

The invention discloses an industrial real-time data lossless coding compression method, which comprises the following steps of: 1) collecting a group of time sequence to-be-stored data sets of an input industrial real-time data measuring point, and completely storing the first data in the sets; and 2) starting to perform coding compression on the second data in the data set in sequence, compressing the timestamp part, the quality part and the value part of each data to be compressed in sequence, and storing the compressed data in a coding compression format. According to the invention, efficient data coding compression is carried out according to the physical characteristics of the industrial real-time data, so that the transmission and storage efficiency of the industrial real-time data is higher. The system resource occupation is lower.

The invention discloses a household garbage compressing device and relates to the technical field of household garbage treatment. A conveying belt, a rotating roller, a cutter, a gear, a rack, a first driving portion and an impacting portion are included, wherein the rotating roller is rotationally arranged above the conveying belt; the cutter is arranged on the rotating roller; the gear is fixedly connected with the rotating roller; the rack is engaged with the gear; the first driving portion is used for being in power connection with the rack, and used for driving the rack to reciprocate; and the impacting portion is arranged at one end of the conveying belt, and used for generating impacting on household garbage. When the household garbage compressing device operates, the household garbage is placed on the conveying belt to be conveyed, when garbage bags are conveyed to the position below the cutter, the garbage bags are cut due to back-and-forth swinging of the cutter, then the household garbage is separated out of the garbage bags due to the impacting portion, in this way, the compressing effect of the household garbage can be improved when the household garbage is compressed subsequently, the compactness of compressing is improved, and dispersing is not likely to be caused after compressing.

The invention belongs to the technical field of garbage classification, and particularly relates to a garbage can collection and garbage classification device. The garbage can collection and garbage classification device comprises a garbage truck used for conveying garbage cans and compressing the garbage cans, and the garbage cans capable of collecting garbage and deforming, wherein the garbage cans are placed at a garbage terminal and are used for collecting garbage. According to the garbage can collection and garbage classification device, when the garbage cans are full of garbage, the garbage truck collects the garbage cans at the garbage terminal, the garbage cans are placed on the garbage truck during the collection process, second oil hydraulic cylinders are driven to drive a back baffle plate to move, the back baffle plate moves to compress the garbage cans in a hopper, and the storage amount of the garbage cans in the garbage truck is increased; and after garbage in the garbage cans is transferred to a waste transfer station to be treated, the plurality of garbage cans are placed in the garbage truck to be sent back after being sequentially stacked up and down, the numberof the empty garbage cans sent back at a time specially by the garbage truck can be increased through stacking of the garbage cans, and garbage can sending efficiency is improved.

The present invention discloses a multifunctional double-layer pressed steel plate roof and its laying method. Its structure is characterized by that its top layer is pressed steel plate, between steel purlin and pressed steel plate a steel wire-mesh is set, between the pressed steel plate and steel wire-mesh a glass-fiber felt is set, between the steel wire-mesh on the steel purlin and pressed steel plate also is set a heat-insulating plate, and under the steel purlin a pressed steel plate is connected. Besides, said invention also provides the concrete steps of its laying method.

The invention discloses a high-temperature-resistant rubber sealing gasket and a preparation method thereof. The sealing gasket is prepared from, by weight, 40-50 parts of acrylate rubber, 25-40 partsof natural rubber, 15-25 parts of a tetrafluoroethylene-hexafluoropropylene copolymer, 10-20 parts of a boron fiber, 8-15 parts of nano-sepiolite, 5-10 parts of a flame retardant, 15-30 parts of methyl silicone oil, 12-25 parts of a plasticizer, 1-1.5 parts of an antioxidant and 1-5 parts of a vulcanizing agent 2,5-dimethyl-2,5-di(tert-butylperoxy)hexane, 2-8 parts of a coupling agent and 0.5-3 parts of an accelerant. The obtained high-temperature-resistant rubber sealing gasket has the advantages of proper hardness, high strength, excellent oil and high-temperature resistance, non-compression and good resilience.

The invention discloses a store plate which comprises a face plate and a sandwich plate, wherein a color steel plate is used as the face plate, and a polystyrene foam sheet with a nitrogen-based flame retardant is used as the sandwich plate. Compared with the prior art, the store plate disclosed by the invention is small in thermal conductivity coefficient, good in heat preservation performance, and has less possibilities of absorbing moisture and being compressed; the polystyrene foam sheet contains a nitrogen-based flame retardant component, the nitrogen-based flame retardant is relatively stable and low in cost, and the function of the nitrogen-based flame retardant is comparable to that of a bromine-based flame retardant, and therefore, the store plate can achieve a fire prevention effect.

The invention relates to a device and a method for rolling a long-strip rod-like dough into a circularly spiral dough. The motion of an insertion pin head assembly and a die set in a linear direction is achieved by virtue of a cylinder; meanwhile, a servo motor is arranged, and the rotary motion of the insertion pin head assembly is achieved by virtue of a transmission element; the action processes of all mechanisms are accurate and flexible, and an insertion pin of the insertion pin head assembly can be quickly inserted into the long-strip rod-like dough; due to the adoption of the cylinder, a transmission belt, the insertion pin head assembly, the die set and the servo motor, the long-strip rod-like dough is automatically rolled into the circularly spiral dough. The whole rolling process is quick and convenient, the problems of manual operation in the prior art can be fully avoided, the human resource cost of an enterprise is saved and the production efficiency of the enterprise is improved.

The invention relates to a water plugging agent and a preparation method thereof. The water plugging agent comprises the following components in parts by weight: 100 to 120 parts of acrylamide, 60 to 100 parts of a strength monomer, 10 to 20 parts of a high-adhesion promoting monomer, 0.01 to 0.1 part of a micro-crosslinking agent, 1 to 4 parts of an associative thickener, 40 to 80 parts of a response monomer, 2 to 6 parts of an associative monomer, 0 to 27 parts of potassium hydroxide, 320 to 400 parts of water, 200 to 280 parts of an oily solvent, 20 to 40 parts of an emulsifier, 2 to 5 parts of a co-emulsifier, 1 to 5 parts of a polymerization stabilizer, 0.02 to 0.5 part of an initiator and 25 to 35 parts of a phase inversion agent. The water plugging agent disclosed by the invention is of a micro-crosslinking association network structure, mainly adopts intermolecular crosslinking, has dense grid holes, thick molecular chains, strong water molecule wrapping capacity, more stable gel and lower dehydration rate, can effectively reduce the permeability of a rock core, and has a good plugging effect.