238 results about "Ring cutter" patented technology

The present disclosure discloses a can opener with an adaptation function, including a shell assembly; a circuit board and a speed reduction transmission assembly which are separately arranged in the shell assembly; an eccentric assembly movably penetrating through the shell assembly, wherein the eccentric assembly is in meshing and transmission connection with the speed reduction transmission assembly; an integrated knife flywheel penetrating through the shell assembly and detachably arranged on the eccentric assembly, wherein the integrated knife flywheel includes an integrally formed integrated knife flywheel main body, a resisting slot body, and a cutting tool body; the knife flywheel main body is in a slope design; the resisting slot body is an annular slot; the cutting tool body is a ring tool.

The invention relates to the technical field of cloth testing and sampling, in particular to a cloth testing and sampling device which comprises a conveying device used for conveying cloth, the conveying device is composed of a sliding seat, an electric sliding table and a storage table, and a sampling cutter is arranged above the sliding seat; a driving mechanism for driving the sampling cutter is arranged outside the sliding seat; the sampling cutter comprises an annular cutter and a telescopic sleeve, and the annular cutter is telescopically connected with the telescopic sleeve; the driving mechanism comprises a rotary drum, a connecting piece is arranged outside the rotary drum, an abutting piece abutting against the rotary drum is arranged on the connecting piece, and a transmission rod fixed to the upper surface of the telescopic sleeve is arranged outside the rotary drum. The cloth sampling device is high in automation degree, manual intervention is reduced, the sampling efficiency and accuracy are improved, the annular cutter cuts cloth in the rotating and pressing process, it can be guaranteed that the cutting edge is neat, the sample quality is good, and the design of the telescopic sleeve can meet the sampling requirements of cloth with different thicknesses.

The utility model discloses a crucible outer wall cleaning system which comprises a roller conveying line and an outer wall cleaning device. The crucible is conveyed to the outer wall cleaning equipment through the roller conveying line to be cleaned, the outer wall cleaning equipment can clean auxiliary materials attached to the outer wall of the crucible downwards through the rotating annular cutter, and manual cleaning of workers is replaced; labor force of workers is saved, efficiency is high, the cleaning effect is better, and the automation degree is high.

A handheld ring cutter is disclosed. The ring cutter has a cutting progress indicator associated with a rotational position of a safety guard about a guard rotation axis, a guard position sensor located to sense the rotational position, and one or more processors communicatively coupled to the guard position sensor and the cutting progress indicator. The processors are configured to collectively direct the safety guard actuator to move the safety guard relative to the circular blade, periodically or continuously receive position signals from the guard position sensor, and periodically or continuously direct the cutting progress indicator to update based on the position signals.

A handheld ring cutter is disclosed. The ring cutter includes a body, a blade motor having a motor rotation axis extending in a longitudinal direction, a circular blade, a blade rotation axis extending in a lateral direction, a safety guard, and an electro-mechanical safety guard actuator. The drive shaft protrudes in the lateral direction out of the body, and the circular blade is mounted to the drive shaft outside of the body at a position spaced from the body in the lateral direction. The safety guard is located outside of the body at a position spaced from the body in the lateral direction, and the safety guard is aligned with the circular blade.

The utility model discloses a ring cutting machine for squid processing, which relates to the technical field of squid processing, and adopts the technical scheme that the ring cutting machine comprises a fixing frame, a motor is fixedly arranged on one side of the fixing frame, a transmission rod is fixedly connected to the output end of the motor, a rotating disc is fixedly sleeved outside the transmission rod, a plurality of slots are formed in the outer side of the rotating disc, and a cutting assembly is arranged on one side of the fixing frame; the cutting assembly comprises a top frame, the top frame is fixedly arranged on the top of the fixing frame, a pneumatic push rod is fixedly arranged on the top of the top frame, the output end of the pneumatic push rod is fixedly connected with a top plate, multiple cutters are fixedly arranged at the bottom of the top plate, two telescopic rods are fixedly connected to the bottom of the top plate, springs fixedly sleeve the telescopic rods, and pressing frames are fixedly arranged at the bottoms of the two telescopic rods. The device has the advantages that squids are pressed and limited through the pressing frame, the squids are prevented from deviating, the quality of squid rings is improved, the structure of the squids is prevented from being damaged through supporting of the base plate, and after the cutter retracts, residual chippings are blocked through the cutter groove, and the chippings are prevented from being attached to the cutter.

The invention discloses a building construction exploration device and an exploration method thereof, and relates to the technical field of building construction, the building construction exploration device comprises a machine head, a drill rod, a drill bit and a collection unit, the collection unit comprises a collection rod, a collection hole, a moving groove, a rotating ring, a scraper and a sampling assembly; the inner cutting ring is divided into two layers including a hard layer and an elastic layer, and active guiding type sampling is achieved by pumping and deflating the interior of the inner cutting ring; a bag body is arranged in the hard layer, an electric control magnet is embedded in the outer side wall of the bag body, the elastic layer is made of a magnetic material, and when a sample in the inner cutting ring is taken out, the device is horizontally placed, then the bag body is inflated, the negative pressure is reduced in a matched mode, and gradual slow release of the sample is achieved by controlling sequential on-off of the electric control magnet; the technical effects that the requirements for rigid cutting and flexible protection are met, the application range is expanded, the cutter feeding process is smooth, soil is not prone to compression deformation, sample taking-out adsorption disturbance is reduced, sample breakage is prevented, and the sampling efficiency is improved are achieved.

The application discloses a kind of building construction exploration device and its exploration method, it is related to building construction technical field, including machine head, drill rod, drill bit and acquisition unit, acquisition unit includes acquisition rod, acquisition hole, moving groove, swivel, scraper and sampling assembly;Inner ring cutter is divided into two layers, including hard layer and elastic layer, by its inside being pumped, realize initiative guiding sampling;Hard layer is provided with capsule in inner portion, and electric control magnet is embedded in the outer wall of capsule, and elastic layer uses magnetic material, when the sample in inner ring cutter is taken out, by the device is placed horizontally, then air is filled into capsule and is lowered in cooperation with negative pressure, by the on-off of electric control magnet is controlled in sequence, sample is gradually and slowly released, rigid cutting and flexible protection requirements are met, application range is expanded, tool-feeding process is smooth, so that soil is not easy to compress deformation, reduces sample adsorption disturbance when taking out sample and prevents sample from breaking, and the technical effect that sampling efficiency is improved.

A ring cutter for transecting a ring trapped on an appendage. The ring cutter includes a body, a motor housed in the body, a blade drivingly connected to the motor, a guard coupled to the body, a guard actuator drivingly connected to the guard and controlling a movement of the guard, a current sensor positioned to sense electrical current associated with the motor, and a processor communicatively coupled to the current sensor and the guard actuator. The blade has a rotation axis and a peripheral cutting edge. The guard is insertable between the ring and the appendage to position the ring between the guard and the blade. The processor is configured to: i) receive, from the current sensor, an electrical current reading associated with the motor, and ii) transmit, to the guard actuator, one or more commands to control the movement of the guard based on the electrical current reading.

The wafer film coating method disclosed in the application controls the whole BG film to be in a flat state before being coated by cooperation between the mold assembly and the fixed angle assembly, keeps the angle between the BG film between the mold roller and the fixed angle roller and the coating platform unchanged, and the mold roller can exhaust the air under the BG film to avoid wrinkles. The hot cutting ring cutter assembly is used for cutting the BG film, the BG film can be cut by the heated blade to avoid wrinkles caused by the ring cutter in the cutting process.

The utility model discloses a perforating device, including base, industrial computer all -in -one, the top one side fixed mounting of base has the rack, and industrial computer all -in -one fixed mounting is in the outer wall of rack, the inboard wall fixed connection of rack has the fixed frame, one end fixed connection of fixed frame has the workstation, the top both sides of workstation all adopt the inclined plane design, the top of workstation is opened and has the bottom hole of penetrating to the bottom. In the utility model, through the rack and double -shaft air cylinder drive assembly seat down pressure, make the rubber roll on two -dimensional elastic piece cooperation inclined plane workstation automatic tensile tight plastic bag, avoid the film wrinkle or deviation when punching, annular cutter and bottom hole accurate alignment ensure that the hole rim is even, and simultaneously the fan can blow the waste into the collecting basket of screw connection, realize efficient punching and automatic cleaning, solve the problem that the traditional device is insufficient and leads to the hole position deviation and waste residue.

The invention belongs to the technical field of testing and sampling, and particularly discloses a semi-closed tube type static and dynamic triaxial undisturbed sample cutting ring soil sampler. Two ends of an upper joint of the soil sampler are respectively provided with interfaces connected with a drill rod and fixed with a waste soil pipe, and the bottom end of a pipe boot is provided with a cutting edge I; an outer soil sampling pipe of the soil sampling pipe is of a tubular structure formed by buckling two semi-closed pipes, external thread sections are arranged at the two ends of the outer soil sampling pipe respectively, the two ends of the outer soil sampling pipe are in threaded connection with a waste soil pipe and a pipe shoe through the external thread sections, a cutting ring support is of a double-pipe structure formed by buckling two omega-shaped semi-closed pipes, the cross section of the cutting ring support is in a transverse 8 shape, and the cutting ring support can be embedded into the outer soil sampling pipe and is provided with a fixing groove. The cutting ring is of a tubular structure formed by buckling two semi-closed tubes and can be embedded into the fixing groove. The cutting ring support of a semi-closed double-pipe structure is arranged in the soil sampling pipe, and two cutting rings can be fixed through the fixing grooves in the cutting ring support respectively, so that four tailing undisturbed samples can be sampled at a time to meet the requirements of a group of samples for a triaxial compression test, and the device has the characteristics of simple structure, easiness in disassembly and assembly and small disturbance.

The present application relates to the field of corn food processing equipment, in particular to a kind of fresh corn kernel threshing device and its using method, including feed cylinder and mounting bracket, the feed cylinder coaxially fixed in the outer side of the mounting bracket end face, rotating ring is rotationally arranged in the middle of the mounting bracket, multiple groups of tool holders are arranged around the inside of the rotating ring, and multiple groups of holding frames are arranged in the middle of the rotating ring corresponding to the tool holder, and the rotating ring outside is provided with synchronous disc for supporting the holding frame;The outer circumference of the rotating ring is provided with annular mounting groove matched with the mounting bracket, and multiple groups of holding grooves for accommodating the holding frame are vertically penetrated in the middle of the rotating ring. Advantageous effects are that: the present application can adjust the inner diameter of annular cutter formed by multiple groups of tool holders in real time according to the diameter of different corn cobs, and then realize corresponding cutting and threshing of tender corn cobs, without manual sorting for size classification of corn cobs, more convenient to use, and corn kernel is more thoroughly separated, and the effect is better.

The utility model provides a cutter extension amount measuring instrument for an outer cutter ring of a ring-type flaker, and relates to the technical field of cutter measuring equipment. Comprising a mounting bottom plate, an electric control box is mounted at the top of the mounting bottom plate, the mounting bottom plate, the electric control box, a supporting vertical plate and an auxiliary measuring mechanism are arranged, a first positioning screw is used for reinforcing and mounting a fixed supporting plate and a mounting seat, the stability of the equipment during use is improved, and an adjusting switch is electrically connected with a control panel; after the mounting seat is mounted through the first positioning screw rod, the first driving motor is started to drive the limiting shaft to rotate in a limiting manner along the interior of the mounting seat, drive the supporting rod at the top to integrally rotate and rotate the adjusting rod mounted on one side of the supporting rod until the adjusting rod is adjusted to a required angle in cooperation with the laser scanner, and tool measurement operation is carried out; and the dial indicator is used for displaying measurement data, so that the technical problem of poor flexibility caused by incapability of adjusting the height and the angle when the cutter is measured in the prior art is solved.

The utility model discloses an annular cutter for taking strip-shaped bones, which relates to the technical field of medical instruments and comprises a tubular cutter body, cutting edges are arranged at the cutting end of the cutter body and comprise a first cutting edge and a second cutting edge, the first cutting edge is zigzag, and the second cutting edge is zigzag. The orientation of the first cutting edge is parallel to the axial direction of the cutter body; and the second cutting edge is inclined towards the inner side of the cutter body. In the using process, by swinging the cutter in the radial direction, the root of the obtained strip-shaped bone can be cut off through the second cutting edge, that is, the connection between the strip-shaped bone in the cutter and the surrounding bone tissue is cut off, and the root cutting operation can be conveniently carried out when the strip-shaped bone is taken.

The utility model relates to the technical field of soil sampling, in particular to a soil bulk density sampling device, and solves the problems that in the prior art, a cutting ring and a large piece of soil are dug out together, and then soil outside the cutting ring is cut off by a soil cutter, so that a large amount of time is consumed, and the soil bulk density sampling device is easily damaged due to the viscidity of the soil. And in the process of cutting the soil outside the cutting ring, the soil inside the cutting ring is easily brought out, so that the sampling fails, and the soil needs to be collected again. A soil bulk density sampling device comprises a cylindrical soil sampler, an outer connecting rod is fixedly connected to the top of the cylindrical soil sampler, a supporting platform is installed on the upper portion of the inner side of the cylindrical soil sampler, and a cutting ring is installed on one side of the inner side of the cylindrical soil sampler. According to the soil sampler, cutting and shaping of a soil sample are facilitated, the soil sample is prevented from being compressed, the accuracy of volume weight is prevented from being influenced, and the soil sampler can be drilled into soil only by pressing the grip downwards with two hands when sampling is carried out in soft soil.

The application discloses an expansive soil free expansion rate and permeability coefficient field test device and method, relates to the technical field of expansive soil test, and aims to solve the problems of non-uniform expansive soil expansion potential discrimination standards and large test data discreteness in the prior art. The device comprises a ring cutter assembly, a water content measuring assembly, a displacement measuring assembly and a water supply assembly. The ring cutter assembly is used for fixing a test soil body; the water content measuring assembly is used for monitoring the water content of the soil body in real time; the displacement measuring assembly is used for recording the surface and deep displacement of the soil body; and the water supply assembly is used for controlling water injection. The test method comprises a test method and a numerical analysis method. The water content and displacement changes of the test soil body are monitored through water injection, the permeability coefficient and the free expansion rate of the soil body are calculated, the water content curve is fitted in combination with numerical analysis, the expansion coefficient and the saturated water content are solved, and finally, the free expansion rate of the soil body is determined, so that the free expansion rate and the permeability coefficient of the expansive soil are rapidly and accurately determined on site, the expansion potential is determined, and a reliable basis is provided for engineering application.

The utility model discloses a portable roadbed compactness rapid detection device which comprises a mobile base, a storage battery is arranged on the upper portion of the mobile base, an electronic scale is installed at the top end of the mobile base, the electronic scale is electrically connected with the storage battery, a bearing rod is arranged on one side of the mobile base, an electric push rod is arranged at the top end of the bearing rod, and the electric push rod is electrically connected with the storage battery. The output end of the electric push rod is connected with a gland, the gland is detachably connected with the electric push rod, and a cutting ring is arranged at the bottom end of the gland. The front end of the movable base is rotationally connected with a pull rod. The storage battery is arranged on the movable base, the electronic scale is mounted at the top of the storage battery, a soil sample can be weighed through the electronic scale, the bearing rod is arranged on one side of the movable base, the electric push rod is arranged at the top of the bearing rod, and the electric push rod can drive the cutting ring to be pressed into a roadbed, so that the cutting ring can be conveniently and quickly inserted into the roadbed; the roadbed soil can be conveniently sampled, and the sampled soil can be directly placed on an electronic scale to be weighed.

The utility model discloses automatic sludge cleaning equipment at the bottom of a river and a lake, which relates to the technical field of sludge cleaning and comprises a main body arranged under a top plate and a screening net, a threaded hole is formed in the middle of the upper surface of the screening net in a penetrating manner, and four groups of first limiting rods are fixedly connected to the inner side wall of the main body; a cutting ring cutter is fixedly connected to the lower end of the main body, a cover disc is clamped to the upper end of the main body, a first lead screw shaft is arranged in the middle of the upper surface of the cover disc in a penetrating mode, a first motor is fixedly installed in the middle of the upper surface of the cover disc, and the first lead screw shaft is fixedly connected to the output end of the first motor; the sludge cleaning device has the advantages that the sludge pumping pipe can be prevented from being blocked by impurities in sludge in the sludge cleaning process, the sludge cleaning process is ensured to be stably carried out, the sludge cleaning efficiency is remarkably improved, manual cleaning is not needed, the function of automatically cleaning the sludge at the river bottom is achieved, and the cleaning efficiency of the sludge at the river bottom is improved.

The application discloses a kind of anti-sticking broken granulation equipment for waste plastic recycling, and the application relates to the technical field of plastic recycling and breaking.The plastic is easily driven into the cutter under the action of shearing force during shearing, causing material sticking, and the sheared particle size is large at the same time.This anti-sticking broken granulation equipment for waste plastic recycling blocks the waste plastic between the broken ring cutter and the side baffle through the cooperation of the partition block, the side baffle and the broken ring cutter, avoids the plastic from being stuck in the non-shearing breaking position between the cutter shaft cylinder and the side baffle ring under the driving of shearing force, causing material sticking, affecting the shearing and breaking of waste plastic, and at the same time, the partition block limits the waste plastic at the arc groove position of the side baffle, so that the volume of the plastic is driven by the cutter during shearing and breaking, avoiding the large volume of plastic from being driven, causing material sticking, and at the same time, the particle size of shearing and breaking is large, reducing the breaking effect.

The utility model discloses a centrum focus tissue sampling device which comprises an outer sleeve and an inner sleeve and further comprises an inner core sampling structure, the inner sleeve is clamped in the outer sleeve and can be disassembled and assembled, the inner core sampling structure is movably arranged in the inner sleeve, and the inner core sampling structure is connected with the outer sleeve. The inner core sampling structure is matched with the inner sleeve to rotate to sample focus tissues; the inner core sampling structure comprises an inner core rod, a sampling rod is arranged on one side of the inner core rod, a cone part is arranged at the end of the sampling rod, and a threaded tip is arranged on the sampling rod. By adopting the closed structure of the inner core sampling structure and the inner sleeve, the sampling of the focus tissue is facilitated, the focus tissue at the same part can be sampled for multiple times, the operation is convenient, and the replacement and sleeve connection are not needed.

The utility model discloses an auxiliary die-cutting device for a carton printing slotting die-cutting machine, which comprises a mounting frame, a bottom roller is rotatably connected onto the mounting frame, a cutter groove is arranged on the bottom roller, the mounting frame is further rotatably connected with a cutter roller component, and the cutter roller component is in transmission connection with the bottom roller component; the knife roll assembly comprises a driving column fixedly connected with the mounting frame, the driving column is rotationally sleeved with a knife shell, a receding groove is formed in the knife shell, and a threaded rod is fixedly connected into the receding groove. According to the paper box clamping and conveying device, the knife roller assembly is arranged, the driving column is matched with the bottom roller, when a paper box is clamped and conveyed, on one hand, die cutting can be conducted on the two sides of the paper box through the annular cutting knife, on the other hand, transverse cutting can be conducted on the paper box through the slitting knife, and the driving column can drive the slitting knife to move in the direction of the bottom roller; it is ensured that the transverse cutting position is cut off, and waste is prevented from being connected with the carton.

This invention provides a bamboo shavings production line for bamboo oriented strand board (BOS), comprising: a feeding and conveying device for placing stacked bamboo chips; a transitional pressure clamping device, including a roller conveyor and a transitional pressure clamping assembly; a rotary shaving machine located at the discharge port of the transitional roller conveyor; a bamboo shavings flotation device, including an oil flotation tank, a flotation washing drum, a first scraper conveyor, and a first bamboo shavings collection belt conveyor; and a boiling device, including a hot water tank, a bamboo shavings pressing drum, a second scraper conveyor, and a second bamboo shavings collection belt conveyor. The advantages of this invention are: the transitional pressure clamping device clamps the stacked bamboo chips, the rotary shaving machine performs radial cutting on the bamboo, and the stacked bamboo chips are shaved into bamboo shavings by a ring cutter. The bamboo shavings are then screened in the bamboo shavings flotation device to separate qualified bamboo shavings and bamboo shavings. After boiling, steaming, and drying, the bamboo shavings meet the production requirements of BOS, resulting in high production efficiency.

The application discloses a kind of cultivation shear irrigation integrated device of root-soil complex, it is related to geotechnical-plant interaction test instrument field, including integrated cultivation shear component, monitoring irrigation component and shear loading component;Integrated cultivation shear component includes upper half ring cutter, lower half ring cutter, flange and detachable screw, upper half ring cutter and lower half ring cutter end each connection has flange, two flanges are attached and overlapped, detachable screw is provided with the aperture of flange, monitoring irrigation component includes moisture detector, intelligent valve, controller, water and fertilizer supply box, water pipe and remote computer, the probe of moisture detector is provided with the moisture detector aperture of upper half ring cutter and lower half ring cutter side wall, controller is connected with moisture detector wiring, and is connected with remote computer, intelligent valve signal.The application uses the cultivation shear irrigation integrated device of root-soil complex described above, realizes root-soil complex in-situ cultivation, intelligent irrigation, shear test integrated operation.

The cutter mechanism comprises a support, a servo motor is arranged on the side wall of the support, a rotating shaft rotationally connected to the inner side wall of the support is arranged at the output end of the servo motor, three annular cutters distributed at equal intervals are arranged on the outer portion of the rotating shaft, a mounting plate is arranged at the top of the support, and the mounting plate is arranged on the side wall of the support. A scrap suction assembly is arranged at the top of the mounting plate, a cleaning assembly is arranged on the back face of the mounting plate, and the cleaning assembly comprises two electric push rods arranged on the two sides of the top of the mounting plate. Flying sweeps can be sucked into the collecting box to be collected in the paper slitting process through the scrap suction assembly, and therefore the situation that the working environment is polluted by the sweeps is avoided; through combination of the scrap suction assembly and the cleaning assembly, the servo motor drives the annular cutter to rotate at a low speed, so that the scraping plates in contact with the two side walls of the annular cutter can scrape dust adhered to the surface of the annular cutter, the automatic cleaning effect is achieved, manual cleaning is not needed, the efficiency is improved, and the labor amount is reduced.

The invention relates to the field of light transmittance detection, and discloses a coated photovoltaic glass light transmittance detection method, which comprises the following steps: S1, randomly selecting a piece of coated photovoltaic glass; s2, randomly selecting three positions on one piece of coated photovoltaic glass, and cutting three to-be-detected samples with the same size through cutting equipment; s3, cleaning the three samples to be detected; and S4, respectively carrying out light transmittance detection. According to the film-coated photovoltaic glass light transmittance detection method provided by the invention, through a combination mode of preliminary cutting of the cutting ring and cutting of the laser head along the gap, a laser heat affected zone is limited by the gap, burning and edge curling of a coating film are avoided, the original state of the film-coated photovoltaic glass is reserved, an electrostatic dust collection roller of the rolling cleaning mechanism adsorbs scraps, and the light transmittance of the film-coated photovoltaic glass is detected. The inclined scraper and the collecting shell are matched for automatic cleaning, the detection accuracy is guaranteed, the driving motor and the linear actuator achieve automatic operation and adjustment of the cutting ring, manual intervention is reduced, the detection efficiency is improved, and the requirement for batch detection is met.

The application provides a tunnel rescue drilling machine, which comprises a rack, a casing device and a casing driving device arranged on the rack, the casing device comprises an inner casing and an outer casing which are coaxially sleeved, a cutting ring cutter head is rotationally connected to the outer casing and connected with the inner casing, a rotary driving mechanism of the casing driving device is connected with the inner casing for driving the rotation of the cutting ring cutter head, and a retreat stopping device is arranged on the rack. The cutting ring cutter head is arranged on the non-rotating outer casing, the rotation of the cutting ring cutter head is driven by the inner casing, and the retreat stopping device is added, so that the problem of insufficient force of the drilling machine after offsetting the drilling process in the prior art is solved; the cutting ring cutter head is selectively rotated according to different conditions, so that the abnormal body in the collapse body can be conveniently coped with and the complex geological conditions can be handled; and the whole machine has a compact structure and is suitable for small space rescue scenes.

The invention relates to the field of corn food processing equipment, in particular to a fresh corn kernel threshing device and a using method thereof.The fresh corn kernel threshing device comprises a feeding cylinder and a mounting frame, the feeding cylinder is coaxially fixed to the outer side of the end face of the mounting frame, a rotating ring is rotationally arranged in the middle of the mounting frame, and multiple sets of tool rests are arranged in the rotating ring in a surrounding mode; the middle part of the rotating ring is provided with a plurality of groups of retainers corresponding to the knife rest, and the outer side of the rotating ring is provided with a synchronous disc for fixedly supporting the retainers; an annular mounting groove matched with the mounting frame is formed in the outer circumference of the rotating ring; and a plurality of groups of retaining grooves for accommodating the retainers transversely penetrate through the middle part of the rotating ring. The corn thresher has the beneficial effects that the inner diameter of an annular cutter composed of multiple sets of cutter rests can be adjusted in real time according to the diameters of different corn cobs, then corresponding cutting and threshing of the tender corn cobs are achieved, manual sorting is not needed for size grading of the corn cobs, use is more convenient, corn kernels are more thoroughly threshed, and the effect is better.

The utility model relates to the technical field of earphone leather sheath production, in particular to a leather pulling and cutting device for earphone leather sheath production, which comprises a base, a bracket is fixed at the bottom of the base, and a plurality of positioning rods are arranged between the base and the bracket in a penetrating manner; two connecting pieces are fixed to the top of the ring body and fixed to the lifting plate, and a ring cutter is coaxially fixed to the bottom end of the ring body. According to the earphone leather sheath cutting device, a cutting leather material of an earphone leather sheath can be positioned through the arranged positioning rod, the electric cylinder drives the cutting part to descend, the pressing plate can press and fix the leather material, and therefore the leather material is limited, and redundant skirt edges at the edge of the leather material can be cut after an annular cutter falls down; according to the design, when the skirt edge at the edge of the earphone leather sheath is cut, workers do not need to cut manually, operation convenience is improved, manpower is saved, a plurality of earphone leather sheaths can be cut at the same time, and the processing efficiency of the earphone leather sheaths is improved.

The utility model relates to the technical field of cutting ring soil sampling, and discloses a cutting ring soil sampling device capable of preventing soil from loosening, the integrity of soil blocks in a cutting ring is kept through structures such as a main cylinder, an inner cutting ring and an outer cutting ring, and a sawtooth thread groove is formed in the inner wall of the outer cutting ring, so that after soil enters the main cylinder from the inner part of the outer cutting ring, the soil blocks are loosened. As the top cover is located above the main cylinder and matched with the containing groove, when a user knocks the top cover through tools such as a hammer, the soil entering the main cylinder can be squeezed into the soil blocks by the bottom face of the top cover and the inner wall of the inner ring cutter, and the soil blocks are separated from the inner wall of the inner ring cutter; and finally, after the device is completely excavated out, the integrity of soil blocks in the inner cutting ring can be kept at a large probability, and the effect of protecting the integrity is achieved.