327results about How to "Avoid offset" patented technology

The invention discloses a textile machinery supporting device, which comprises a supporting base, a supporting plate, a workbench, a supporting sleeve rod, a No. 1 connecting rod, a No. 2 sliding block, a No. 1 sliding block, a No. 2 connecting rod, a hinge seat and shock The upper surface of the support plate is symmetrically fixed with a support vertical plate, the rotating frame on the two support vertical plates is provided with a screw, the upper surface of the support vertical plate is symmetrically fixed with a support sleeve rod, and the workbench is fixed on the support sleeve rod. At the top, the No. 2 slider is set on the outer ring of the left end of the lead screw by thread connection, the No. 1 slider is set on the right end outer ring of the lead screw by thread connection, and the lower surface of the middle part of the workbench is connected to the outer ring of the No. 2 slider. The upper surfaces are connected through the No. 2 connecting rod, and the middle lower surface of the workbench is connected with the upper surface of the No. 1 slide block through the No. 1 connecting rod. The invention can adjust the height according to the use requirements of the textile machine, and at the same time solves the problems of inconvenient movement, poor shock absorption and the like.

The image forming method forms an image on a recording medium by using aqueous ink and treatment liquid. The ink contains coloring material, and the treatment liquid contains a component which reacts with the coloring material. The image forming method includes: a treatment liquid deposition step of depositing the treatment liquid onto the recording medium; an ink deposition step of ejecting and depositing droplets of the aqueous ink in accordance with image information, onto the recording medium on which the treatment liquid has been deposited in the treatment liquid deposition step; an ink drying step of drying an ink layer which has been formed on the recording medium by reaction between the treatment liquid deposited in the treatment liquid deposition step and the aqueous ink deposited in the ink deposition step, such that an amount of water originating from the aqueous ink and still remaining on the recording medium after the ink drying step is not more than 4.0 g/m²; and a fixing step of fixing the ink layer which has been dried in the ink drying step on the recording medium by applying heat and pressure to the ink layer.

When an operator operates a pointing device, a direction computing section computes a movement vector from an image photographed by an image sensor, and when the movement vector is larger than a threshold, a direction correcting section determines the movement vector as invalid based on the recognition that the movement vector was caused by an abrupt change in the illumination or other conditions, and outputs only movement vectors that are smaller than the threshold to a coordinate position updating section.

The invention discloses a hole reserving construction method for a tightly-fixed steel sleeve, which adopts a hole-reserved steel sleeve to replace a PVC sleeve which is adopted in the traditional reserving step, has the characteristics of recyclability, no nail remaining at a reserved hole, nice appearance and remarkable economical benefit, and is easy in assembly. According to the construction drawing and a structure datum point, the center of the hole is determined and used as the central position for a fixed screw, and the reserved sleeve is fixed through the tightening effect of the fixed screw. In the method, the deflection of the center of the vertical hole is adjusted by utilizing a plumb line or a laser plummet apparatus every other 5 to 8 layers, and the center of the bottom hole is led to the bottom of an upper formwork to position an upper hole, so that the deflection of the centers of two holes which are symmetric up and down caused by errors of a civil support formwork can be effectively avoided. According to the invention, a reserved hole of a finished product sleeve can be fixed by a screw so as to achieve the aims of time conservation and rapidness in assembly.

The invention discloses a gantry type ultra-precise fly-cutting milling machine and relates to a milling machine. The invention solves functional and material problems that special equipment which is used to manufacture surfaces ultra-precisely can't be provided in the prior art to manufacture KDP crystals which are needed urgently in the non-leaner optical field and the like. A main shaft sleeve (38) is sleeved on an aerostatic main shaft (35), a flying cutter plate (34) is installed on the lower end of the aerostatic main shaft (35), two ends of an upper sliding plate (41) are respectively connected fixedly with two lower sliding plates (46) through two middle sliding plates (45) and formed into a groove (62), the upper end of a guiding rail (42) is installed in the groove (62), a vacuum chuck (57) is installed on the upper sliding plate (41), a screw nut (58) is sleeved on a screw lead (11), and two ends of the screw lead (11) are installed on the guiding rail (42). Linear feeding movements with high precision and rotary movements of a flying cutter can be realized by the invention, both the guiding rail and the main shaft adopt a controlling mode of aerostatics, and the invention has the advantages of high precision and non-pollutions.

The invention discloses a door and window physical property detection device, solving the problem that the locking process of a piece to be detected needs consuming a lot of time. The door and windowphysical property detection device is characterized in that the door and window physical property detection device includes a box with an installation cavity, a splitter plate set which is connected to the box in a sliding manner and is located in the installation cavity, and a plurality of locking levers which are connected to the box in a sliding manner and are located at the front of the opening of the installation cavity, wherein the locking levers include a plurality of sliding rods which are coordinated with a guide rail, and fasteners which penetrate through the sliding rods; positioning columns limiting the fasteners are rotatably arranged on the sliding rods; a positioning gear which rotates in situ relative to each positioning column sleeves the end portion of the each positioning column, and the positioning gear includes a second connection unit which rotates with a first connection unit synchronously and is in threaded connection with the corresponding fastener; and a driving motor is also fixedly arranged on the box; the driving motor is fixedly provided with an driving gear so as to drive a driven gear to rotate synchronously to quickly compact the piece to be detected and the box, thus reducing the time on the locking process for detection, improving leakproofness of the detection cavity and guaranteeing accuracy of the detection data.

The invention relates to an airlift type photo-biologic reactor capable of on-line regulation and control of light intensity. The reactor comprises a light source glass cylinder and a guide cylinder body which are arranged in a reactor barrel, a radiation instrument interface assembly arranged on the side wall of the reactor barrel, and a light regulating and controlling system arranged outside the reactor, wherein the light source glass cylinder is embedded outside a guide cylinder in an annular space; the guide cylinder body is connected with an upper cover and the light source glass cylinder into a whole and adopts a mechanical rail lift mode; the radiation instrument interface assembly can be cooperated with a spherical radiation instrument for use; and the light regulating and controlling system is used for on-line regulation and control of LED (light-emitting diode) light source light intensity through an intelligent controllable direct-current power supply capable of performing PLC (programmable logic controller) control. On the basis of meeting sterile culture, the reactor meets the requirement of microalgae growth on light intensity and light-dark circulation, thereby solving the light intensity monitoring problem in the photo-biologic reactor culture process and achieving the effective monitoring and automatic regulation and control of light in the photo-biologic reactor culture process. The reactor provided by the invention is suitable for industrial production on large scale.

The invention discloses a washing machine clamping device which comprises a left clamping piece, a right clamping piece and an opposite clamping mechanism. The opposite clamping mechanism comprises a clamping cylinder, a left rack, a right rack and a center gear. The left rack and the right rack are identical in length, tooth size and modulus. The clamping cylinder is fixed on the outside of a casing, and an output shaft of the clamping cylinder is fixedly connected onto the right clamping piece. The clamping device is reasonable in structure, the left clamping piece and the right clamping piece move synchronously when a workpiece is clamped, the workpiece is located in the middle of the clamping device when the workpiece is in the clamped state, the center of the workpiece and the center of the washing machine are located on the same line, excursion of the position of the workpiece is effectively prevented, device damage is avoided, and wide popularization and application are facilitated.

The invention discloses a maintenance platform for power electrical equipment maintenance. The maintenance platform comprises a base, a maintenance table, wheels, connecting rod mechanisms and liftingmechanisms; the multiple wheels convenient to move are symmetrically arranged at the bottom of the base, and the upper portion of the base is connected with the maintenance table used for standing byworkers through the multiple symmetrically arranged connecting rod mechanisms; and the base is further provided with the lifting mechanisms for adjusting the height of the maintenance table. According to the maintenance platform for power electrical equipment maintenance, by arranging the multiple lifting mechanisms, the maintenance table can be damped at the moment of lifting, so that working personnel are prevented from standing unstably, and meanwhile, the maintenance table can be stably lifted; and by arranging supporting mechanisms, the device can be fixed, the maintenance table can be prevented from shifting, and meanwhile the height of the maintenance table can be further adjusted.

The invention discloses a vehicle seat control method, a storage medium and electronic equipment, and the method comprises the steps: receiving a seat side wing control signal for adjusting a seat side wing, wherein an air bag is disposed in the seat side wing; generating a seat side wing adjusting parameter according to the seat side wing control signal; and controlling the air bag to be inflatedor deflated according to the seat side wing adjusting parameters. According to the method, whena seat side wing control signal for adjusting a seat side wing is received, seat side wing adjustment parameters are generated, and the air bag is controlled to be inflated or deflated according to the seat side wing adjustment parameters, so that adjustment of the seat side wings is achieved, the seatside wings can support passengers in the automobile, provide counterforce for the passengers in the automobile, prevent the passengers in the automobile from deviating, provide different side wing wrapping feelings for users of different body types, and improve user experience and comfort.

The invention relates to a blockchain-based commodity logistics information inquiry system and method. The system is used for inquiring the logistics information of commodities. The method is used forregulating a whole process. According to the blockchain-based commodity logistics information inquiry system and method of the invention, the transportation process of the commodities is symbolized into events; the events are recorded on a blockchain system; transportation routes are compared with each other, so that the deviation of the transportation routes can be prevented; and a time factor is also taken into account.

The invention discloses a new energy charging pile capable of protecting a charging head. The charging pile comprises a base, a charging pile shell is fixedly connected to the top of the base, a buffer mechanism is fixedly connected to the top of the charging pile shell, a charging display screen is installed on the front side of the charging pile shell, a coin slot is formed in the bottom of theright side of the front side of the charging pile shell, and a charging gun is installed on the top of the right side of the charging pile shell. The charging gun and a protective sleeve are taken outof the charging pile shell through a handle; then a push block is held by hand to push the protective sleeve to the right side; the protective sleeve drives a vertical rod to move, the vertical rod drives a transmission rod to move, the movement of the transmission rod drives a pulley to slide in the groove, and meanwhile, the movement of the protective sleeve drives a limiting sliding rod to slide in the limiting chute until the charging head body extends out of the protective sleeve through the opening, so that the advantage of a protection function is achieved, and the problem that an existing new energy charging pile does not have the protection function in use is solved.

The invention discloses a backlight module and a manufacturing method thereof and a display device and belongs to the technical field of display. The backlight module comprises a light guide plate, a light bar and a rubber frame. The light bar comprises a flexible circuit board and a plurality of backlight lamps which are arranged on the flexible circuit board; the rubber frame is arranged around the light guide plate, and a gap exists between the rubber frame and the light guide plate, the flexible circuit board is arranged on the rubber frame, the plurality of backlight lamps are located in the gap, a first positioning portion is arranged on the flexible circuit board, a second positioning portion is arranged on the rubber frame, and the first positioning portion and the second positioning portion can be matched to position the flexible circuit board. The backlight module disclosed by the invention solves the problem that a connecting terminal of the flexible circuit board cannot be effectively welded to the display panel as the flexible circuit board deviates, so that the connecting terminal of the flexible circuit board is effectively welded to the display panel favorably. The invention is used for the backlight module.

The invention provides a bracket assembly, which comprises a first bracket, a second bracket, at least one first gasket and a first compression nut, wherein one end of the first bracket extends into a front-end assembly, and the other end of the first bracket is connected to one end of the second bracket; a pedestal assembly extends into the other end of the second bracket; one end of the first gasket is wedged into a gap between the part of the first bracket extending into the front-end assembly and the front-end assembly, and the other end of the first gasket is embedded into the inner surface of the first compression nut; and the first compression nut is annularly sleeved on the outer surfaces of the first bracket and the front-end assembly in which the first bracket extends, the first gasket is driven to be screwed into the gap between the part of the first bracket extending into the front-end assembly and the front-end assembly towards a direction near the front-end assembly when the first compression nut is stressed to rotate towards the direction near the front-end assembly; and the front-end assembly is locked in the gap which is formed by the front-end assembly and the first gasket. The invention also provides a miniature image pick-up device which is provided with the bracket assembly. By adopting the bracket assembly and the image pick-up device disclosed by the invention, the angle-regulating range can be enlarged, the deviation occurring at a position in a vibrating environment is avoided.

A machining tool for a thin-wall long barrel part with a window comprises a positioning core, a pressing plate, a gasket, a bolt and a positioning barrel. The positioning core is arranged on one sideof the pressing plate; the gasket is arranged on the other side of the pressing plate; the bolt is arranged on the side, away from the pressing plate, of the gasket; and the positioning barrel is arranged on the same side of the positioning core. A machining process for the thin-wall long barrel part with the window comprises the steps that an outer ring, a groove and an inner hole are subjected to rough turning; natural aging treatment is conducted; the outer ring, the groove and the inner hole are subjected to finish turning; and flanging burrs generated, at the window, by the machined partare removed. The machining tool and process have the beneficial effects that (1) the tool is high in pertinence, the final machining effect is remarkable, positioning is accurate, and deviation is small; (2) the positioning accuracy of the part is further strengthened by the bolt; and (3) through the newly-designed process route, the problems that in the machining process of the thin-wall part, parts deform, linear dimensional tolerance is instable, and the roughness of the machining surface is hard to reach can be well solved.

The invention discloses a cleaning machining device of a powder metallurgy product and belongs to the technical field of powder metallurgy product machining devices. The cleaning machining device of the powder metallurgy product comprises a conveyer belt, a workpiece overturning mechanism, an automatic cleaning mechanism and a rapid drying mechanism. The conveyer belt is provided with a pluralityof limiting jigs which are arranged at equal intervals in the conveying direction of the conveyer belt. Each limiting jig comprises two limiting rings. The workpiece overturning mechanism comprises alifting assembly, a supporting stand plate, a lifting platform, a workpiece clamping assembly and an overturning assembly, wherein the workpiece clamping assembly is arranged at the rotating end of the overturning assembly. By means of the workpiece overturning mechanism, two workpieces can be simultaneously clamped, the clamped workpieces can rise, fall and be overturned, and the automatic cleaning mechanism can clean the outside of the rotating workpieces; and the two symmetrically arranged limiting rings of each limiting jig can limit the powder metallurgy product, and it is avoided that the powder metallurgy products generate large deviation in the cleaning and jet drying processes.

The invention relates to the field of petroleum, in particular to filter screen cleaning equipment for petroleum processing. The invention aims to provide the filter screen cleaning equipment for petroleum processing, and the filter screen cleaning equipment is high in cleaning speed, thorough in cleaning effect and simple to operate. The technical scheme of the filter screen cleaning equipment ischaracterized by comprising a bottom plate, a left support, a right support, fixing plates, a box body, a cylinder body, a piston, a moving rod and the like, wherein the left support is arranged on the left side of the top of the bottom plate, the right support is arranged on the right side of the top of the bottom plate, the middle of the right side of the left support and the middle of the leftside of the right support are each provided with the fixing plate, and a filter screen is arranged at the tops of the fixing plates. According to the filter screen cleaning equipment, the filter screen is placed on the fixing plates, then a cleaning agent is sprayed out by a spray head so that the filter screen can be washed; then the filter screen can be brushed by a brush, the left side and theright side of the filter screen are fixed by pressing plates, so that the filter screen is prevented from shifting during cleaning; and a motor is mainly used as a power source, the operation is convenient and rapid, and the effects of being high in cleaning speed and thorough in cleaning are achieved.

The invention discloses a paper processing and punching device comprising a first conveyor device, a carrying table arranged on one side of the first conveyor device, a punching device arranged abovethe carrying table, and a second conveyor device arranged on the other side of the carrying table; the first conveyor device comprises a connecting frame, a first roller arranged on the connecting frame, and a conveyor belt arranged on the first roller in a sleeved manner; the conveyor belt is provided with a tray used for placing paper; the paper processing and punching device is characterized inthat the carrying table is provided with two first baffles, and the two first baffles are arranged on the both sides of the carrying table separately; and the carrying table is further provided witha second baffle and a third baffle which can do lifting motion along the side wall of the carrying table.

The invention provides a method for manufacturing a flexible substrate and a substrate structure. The method comprises: 1) providing a rigid motherboard and a flexible motherboard, wherein a second active region of the rigid motherboard is corresponding to a first active region of the flexible motherboard, and a second non-active region of the rigid motherboard is corresponding to a first non-active region of the flexible motherboard; 2)disposing an adhesive layer on the rigid motherboard, wherein the adhesive layer comprises a strong adhesive layer and a weak adhesive layer, the strong adhesive layer is disposed on at least a part of the second non-active region, and the weak adhesive layer is disposed on the other part of the second non-active region and the second active region; 3) covering the adhesive layer with the flexible motherboard through adhering; and 4) cutting the flexible motherboard along an edge of the first active region. The method enables the flexible motherboard to be subjected to a smaller stress during peeling, thus protecting the internal part of the flexible substrate from being damaged.

The invention belongs to the field of drilling machines, and particularly relates to a drilling machine provided with a center hole and used for thin plate machined parts. The drilling machine provided with the center hole and used for the thin plates comprises a drilling machine body, wherein a cutter base connected with a main shaft is arranged on the drilling machine body, a cutter rest is connected to the cutter base, a drill bit is installed on the cutter rest, a hole drilling template is arranged on the cutter rest, a die hole is formed in the hole drilling template, the drill bit is arranged right above the die hole, a clamp is arranged on the lower portion of the drill bit, and the clamp comprises a conical round table. According to the technical scheme of the drilling machine provided with the center hole and used for the thin plates, the plates to be machined do not need to be clamped, fixed and installed specially, all holes in one face of each plate can be machined and formed at one time, the tedious processes of positioning, marking off and cutter aligning can be omitted, the drilling machine is easy to operate and capable of performing machining fast, production efficiency is improved, and meanwhile the machining accuracy of hole drilling of the plates is greatly improved.

The invention discloses an all terrain vehicle tire cleaning device. An outer frame is included; the top of the inner wall of the outer frame is fixedly connected with a motor; one end of an output shaft of the motor is fixedly connected with a first belt pulley; the surface of the first belt pulley is in transmission connection with a second belt pulley through a belt; a moving device is fixedlyconnected with the surface of the second belt pulley; a vertical rod is fixedly connected with the top of the moving device; the bottom end of the vertical rod is fixedly connected with a cleaning head; and a supporting base is fixedly connected with the bottom of the inner wall of the outer frame. The invention relates to the technical field of all terrain vehicles. The all terrain vehicle tire cleaning device achieves the purpose that a tire can be conveniently cleaned, manual cleaning is not needed, the load of a user is relieved, the cleaning effect is high, all-dimensional cleaning can beperformed on the tire, next-time use of the tire is facilitated, the tire can be conveniently clamped and fixed, deviation of the tire is prevented, conducting of the cleaning process is guaranteed,people can conveniently take and place the tire, the durability of the device is improved, and the service life of the device is prolonged.

The invention discloses a perforating device provided with a dust removal mechanism and used for automobile accessory machining. The device comprises a base, supporting columns are fixedly arranged onthe two sides of the upper end of the base, the tops of the two supporting columns are connected with a fixing plate, a first groove is formed in the middle of the lower end of the fixing plate, a first electric push rod is arranged in the first groove, a perforating equipment body is fixedly connected to the telescopic end of the first electric push rod, a drill bit is fixedly connected to the output end of the perforating equipment body, a damping mechanism is arranged in the center of the upper end of the base, a containing table is arranged at the upper end of the damping mechanism, and the damping mechanism comprises a sliding plate, a sliding rail, a clamping piece, a rod body and a damping spring, fixing columns are arranged in the two sides of the upper end of the containing table, a clamping mechanism is arranged on the two fixing columns, and a dust collection mechanism is further arranged on the containing table. The perforating device is provided with the dust collection mechanism, and dust in the perforating process can be collected; and the damping mechanism is arranged, vibration generated by the containing table in the punching process can be reduced, the structureis simple, and practicability is high.

A toner comprising a toner particle that contains a binder resin and a wax, wherein in a cross sectional image of the toner observed with a transmission electron microscope, the toner satisfies the following formulas (1) and (2)

18.0%≧As≧1.5%  (1)

10.0≧Ac/As≧2.0  (2)

where As represents the proportion for the area taken up by the wax present in the surface layer region having distance 1.0 μm in a radial direction inward from the surface of the toner, and Ac represents the proportion for the area taken up by the wax present in the inner region positioned further inside than the surface layer region.

The invention belongs to the field of aluminum electrolysis, and particularly relates to an electrode bar cleaning device for aluminum electrolysis. For the problems that in a traditional method, a manual cleaning mode is adopted, the cleaning efficiency is low, and an electrode bar is prone to being damaged, the following scheme is proposed, the electrode bar cleaning device for aluminum electrolysis comprises a bottom plate, a bracket which is of a U-shaped structure is arranged on the top of the bottom plate, a driving mechanism is installed on the side, close to the bottom plate, of the bracket, a pushing plate is installed at the bottom of the driving mechanism, a movable plate is installed on the side, close to the bottom plate, of the pushing plate, a sliding groove is formed in thebottom of the movable plate, an abutting plate is movably connected to the interior of the sliding groove in a sleeved mode, and a cleaning plate is welded to one side of the end, stretching out of the sliding groove, of the abutting plate. According to the electrode bar cleaning device for aluminum electrolysis, foreign matter attached to the exterior and the end of the electrode bar can be removed at a time, the cleaning force can be automatically adjusted in the cleaning process, damage to the electrode bar is avoided, the completeness of the electrode bar is guaranteed, manpower and material resources are saved, and the cleaning efficiency of the electrode bar is improved.

The invention discloses an automatic pig raising water charging device. The device comprises a water storage tank, a filling pipe is communicated with the left side of the top of the water storage tank, a water pump is arranged on the right side of the water storage tank, a water tank is arranged on the right side of the water pump, a connected plate is fixedly connected to the left side of the top of the water tank, the right end of the connected plate extends into the water tank, a water inlet of the water pump is communicated with a water inlet pipe, the end, far away from the water inlet of the water pump, of the water inlet pipe is communicated with the right side of the water storage tank, and a water outlet of the water pump is communicated with a water outlet pipe. Accordingly, by means of arrangement of a floating block and a first spring, the floating block can be driven to move upwards, the floating block moves downwards when water is too little, by means of arrangement of a moving rod and a first contact switch, water can be charged automatically by cooperating with a second contact switch, and meanwhile the problems that water cannot be charged for the pig raising water tank, the labor quantity of workers is increased, and the raising efficiency is reduced are solved.

The invention provides a cooperative industrial welding robot for an intelligent automobile automatic production line, and belongs to the technical field of welding robots. The cooperative industrialwelding robot for the intelligent automobile automatic production line comprises a base, a supporting frame is fixed to one end of the outer wall of the top of the base through screws, an impact mechanism is arranged on the inner wall of the top of the supporting frame, storage columns are arranged at one ends of the outer wall of the top of the base correspondingly, shielding mechanisms are arranged on the outer walls of one sides of the storage columns, a plurality of third hydraulic cylinders are embedded into each of the two sides of the outer wall of the top of the base, and the third hydraulic cylinders are connected with a synchronous hydraulic system. According to the cooperative industrial welding robot, a sliding seat is arranged, a third motor is started, the third motor drivesa main gear, the main gear is meshed with a first secondary gear, and meanwhile, the first secondary gear and a second secondary gear are meshed with racks to limit movement of the sliding seat, so that deviation of the sliding seat is avoided; and meanwhile, the welding distance between a welding mechanism and a welding face can be adjusted, so that the welding efficiency is improved, and the welding requirements are met.

The invention discloses an etching method of a semiconductor device and a three-dimensional memory. The etching method comprises the steps of providing a to-be-etched semiconductor structure, whereinthe semiconductor structure comprises at least one semiconductor substrate, a laminated structure located on the semiconductor substrate and first conductive columns located in the laminated structure; and the first conductive columns are conductively connected with the semiconductor substrate; forming an insulating layer coating the semiconductor substrate to avoid an exposed area on the surfaceof the semiconductor substrate; and etching the laminated structure by adopting a dry etching process and forming slits penetrating into the laminated structure, thereby ensuring that the dry etchingprocess is carried out in the expected direction and improving the yield and the working stability of the device.

The invention relates to touch pad inductor inducing rate compensating method. It includes the following steps: computing the relationship between the compensating area or line trace area and the ground plane distance; adjusting the line trace area or ground plane position to make the different line traces have equal basic capacity.

The invention relates to the field of engraving equipment, and discloses a wood engraving machine. The wood engraving machine comprises a machine tool, a worktable, a transverse beam mechanism and anengraving mechanism. The worktable is fixed to the top of the machine tool, and adjustable clamping plates are symmetrically arranged on the two side walls of the worktable; the transverse beam mechanism comprises first sliding rails, a sliding seat slidably connected to the first sliding rails, a support frame and a transverse beam, and the first sliding rails are fixed to the two sides of the machine tool; the engraving mechanism comprises second sliding rails, a knife seat slider, a knife seat, an engraving knife and a first motor for driving the engraving knife to rotate, the second sliding rails are arranged on the transverse beam, and a spraying device with a spraying opening facing the engraving knife is arranged on the knife seat; and the bottom end of the transverse beam is provided with an air blowing pipe with an air outlet facing the worktable, the tail end of the air blowing pipe is bent to the side, where the engraving knife is fixed, of the transverse beam, and cleaningrods with adjustable heights are in sliding connection with the sides, close to the engraving knife, of the first sliding rails. The wood engraving machine ensures cleanliness of the engraving knife during engraving, the cooling effect of the engraving knife is better, meanwhile, the wood fixing function is achieved, and the engraving efficiency is improved.

The invention discloses a magnetic-resonance head-neck fixing device. The magnetic-resonance head-neck fixing device comprises head-neck-shoulder padding plates and a head-neck fixing part; the head-neck fixing part comprises a head-neck thermoplastic film and clamping blocks; the head-neck-shoulder padding plates include the head-neck padding plate and the shoulder padding plate connected with the head-neck padding plate; the head-neck padding plate and the shoulder padding plate are put into a head-neck combining coil during using, and are attached to the inner surface of the head-neck combining coil; the head-neck padding plate comprises an arc supporting plate for supporting the head neck part, at least one edge connected to the arc supporting plate and arc enclosing plates extending upwards; a locking part for fixing the head-neck thermoplastic filmis installed on the inner surface of each arc enclosing plate; the shoulder padding plate comprises a shoulder-back supporting plate and arc plates, the arc plates are connected to the edge of the shoulder-back supporting plate and the edge of the head-neck padding plate, a containing cavity for containing the shoulder and the backis enclosed through the arc plates and the shoulder-back supporting plate; installing plates extending in the direction of the head-neck padding plate are located on the arc plates on the two sides ofthe head-neck padding plate, and shoulder pressing mechanisms for pressing the shoulders of a patient are assembled on the installing plates.