31results about How to "Small rotation angle" patented technology

The invention discloses an integral type automatic directional drilling machine suitable for underground directional construction and a control method of the integral type automatic directional drilling machine. The integral type automatic directional drilling machine comprises a walking mechanism, a drilling main machine, a rod loading and unloading mechanical arm, a rod supplementing device, a suspension arm and a power pump station, in the drill rod loading and unloading construction process, the rod loading and unloading mechanical arm can achieve the rod loading and unloading function at different drilling angles, the rod loading and unloading action within the range of 0-90 degrees can be achieved in the mode that linear motion and rotary motion are combined, accurate positioning at multiple angles is achieved in the mode that mechanical limiting and an angle sensor are combined, and the drill rod loading and unloading efficiency and reliability are improved; during rod supplementing operation, the drilling machine has the rod bin capacity meeting the single-shift footage average value in actual construction, single-shift one-time rod supplementing can be achieved, and auxiliary personnel do not need to wait for rod supplementing basically. The drilling machine is suitable for underground coal mine automatic directional drilling machine construction, can achieve integral layout, is compact in structure, is provided with a power system, and does not need to be matched with a special power pump truck for use.

The invention discloses an automatic long drilling tool loading and unloading system of a directional drilling machine and a control method. The automatic long drilling tool loading and unloading system comprises a drilling main machine, a rod loading and unloading mechanical arm and a rod supplementing device. In the drill rod loading and unloading construction process, the rod loading and unloading mechanical arm can achieve the rod loading and unloading function at different drilling angles, the rod loading and unloading action within the range of 0-90 degrees can be achieved in the mode that linear motion and rotary motion are combined, accurate positioning at multiple angles is achieved in the mode that mechanical limiting and an angle sensor are combined, and the drill rod loading and unloading efficiency and reliability are improved; during rod supplementing operation, the drilling machine has the rod bin capacity meeting the single-shift footage average value in actual construction, single-shift one-time rod supplementing can be achieved, and auxiliary personnel do not need to wait for rod supplementing basically. The drilling machine is suitable for underground coal mine automatic directional drilling machine construction, can achieve integral layout, is compact in structure, is provided with a power system, and does not need to be matched with a special power pump truck for use.

The utility model discloses a composite bushing of a shock absorber. The composite bushing comprises an inner bushing, the composite bush has the advantages that the mounting grooves are annularly formed outside the bush pipe, one rolling shaft is mounted in each mounting groove through the corresponding rotating shaft, and meanwhile the grooves are formed in the portions, matched with the rolling shafts, of the bush pipe, so that when the composite bush is used, the composite bush rotates along with an automobile shock absorber, and the service life of the composite bush is prolonged. The rolling shaft can be used for achieving rotation of the lining pipe relative to the inner lining, so that the rotation angle of the lining pipe relative to the installation shaft piece when the lining pipe rotates along with the automobile shock absorber is reduced, the friction effect borne by the lining pipe in the rotation process is reduced, and the service life of the lining pipe is longer; meanwhile, the two sides of the rubber sleeve are limited through the limiting shoulders on the outer side of the neck bush, the tedious operation of additionally installing an end cover is omitted, the assembling process of the composite bush of the automobile shock absorber is more efficient, and efficient assembling and using of the composite bush of the automobile shock absorber are facilitated.

The invention discloses a bidirectional parcel sorting mechanism. The bidirectional parcel sorting mechanism comprises a carrying support and a carrying device arranged on the carrying support. The base comprises a base bracket; an inclined sliding way is arranged on the base support and inclines from high to low in the unloading direction, and the carrying support is in sliding connection with the base support through the inclined sliding way. A transmission device mounting position is arranged on the base; a guide device is arranged on the base and used for guiding the unloading direction of the loading support in the unloading state. In the first direction state, the carrying support slides downwards along the first direction sliding way so that the carrying device can be turned over in the first direction. And in the second direction state, the carrying support slides downwards along the second direction slide way, so that the carrying device is turned over towards the second direction. By arranging the guide device, the inclined direction of the loading bracket is guided into the first direction slide way or the second direction slide way, so that the complexity of the whole system is greatly reduced, the failure rate of a product is reduced, and the cost is reduced.

The invention relates to the technical field of cable bending inspection, in particular to a ship cable bending resistance inspection device, which comprises three support plates, the three support plates are linearly arranged at equal intervals, and each support plate is provided with a detection assembly; the power assembly is connected with the two supporting plates located at the ends; the detection assembly comprises a rotating shaft which is rotatably arranged on the side wall of the support plate and penetrates through the support plate; the fixing unit is arranged at one end part of the rotating shaft, and the fixing unit is used for fixing a cable; according to the cable bending inspection device, through cooperation of the adjusting unit, the limiting unit, the first rack, the second rack, the gear and the fixing unit, bending inspection of different degrees can be carried out on three kinds of cables on the three supporting plates at the same time.

The present application relates to the technical field of air filtration equipment, and specifically discloses an air filter for environmentally friendly emission, including two positioning circular plates, two air filter components are arranged between the two positioning circular plates, and air guide components are respectively arranged on the opposite sides of the two positioning circular plates, and the air filter component includes a vertical plate I and a vertical plate II, and the vertical plate I and the vertical plate II are connected to a filter element on the side away from each other, and the filter element is of a folding design, and the two air guide components are respectively used for the outflow of filtered gas and back-blowing high-pressure gas to clean the filter surface of the filter element. Through the structural setting of the air filter component composed of the vertical plate I, the vertical plate II and the filter element and the characteristics of the folding design of the filter surface of the filter element, after back-blowing the high-pressure gas to the filter element, the filter surface of the filter element is overlapped, and the dust, particulate matter and other impurities on the outside of the filter element after back-blowing fall to the bottom of the filter element, and will not be re-attached to the filter surface of the filter element, thereby improving the back-blowing effect of the filter element in the air filter component.

The application discloses a disturbance type convection device. The device comprises a shell, a flow guide assembly, a disturbance assembly and a driving assembly. The shell is provided with a fan at one end and a nozzle at the other end. The flow guide assembly comprises a partition and a flow guide plate, and separates the shell into independent sub-chambers. The disturbance assembly comprises a rotating shaft and a rotating plate. The driving assembly drives the rotating plate to switch between a first position and a second position. In the first position, the rotating plate closes the gap, and the airflow flows to the nozzle through the main channel between the flow guide plates. In the second position, the rotating plate opens the shunt channel, and part of the airflow forms a reverse airflow opposite to the main airflow direction through the guide to offset the main airflow. The application realizes pulsed injection and disturbance offset of the airflow through the periodic switching of the rotating plate, eliminates the residual wind during the disturbance by using the reverse airflow offset principle, solves the problems of incomplete obstruction and slow response of the traditional vortex ring device, and realizes high-frequency and clear vortex ring output.

The invention discloses automatic microphone wire welding equipment, and relates to the technical field of wire welding equipment, the automatic microphone wire welding equipment comprises a workbench and a feeding assembly, the feeding assembly comprises two feeding mechanisms, a rectangular opening is formed in the table top of the workbench, and the two feeding mechanisms are arranged on the two sides of the rectangular opening respectively; a material guide cover which is obliquely arranged is fixed at the bottom of the table top of the working table, and a cover opening of the material guide cover is located below the rectangular opening; the feeding mechanism comprises a supporting plate and a plurality of clamps, the supporting plate is fixed to the workbench, and a driving assembly enabling the clamps to move annularly is arranged on one side of the supporting plate. According to the invention, the angle control range of the straightening microphone is from zero to ninety degrees, that is to say, the direction of the microphone welding wire is provided with two positions, one position is used for welding the cathode in front, and the other position is used for welding the anode in front, so that the reference direction of the microphone is provided with two directions, the rotating angle of the rotating module is reduced, the rotating time is shortened, and the efficiency of batch production is improved.

The utility model discloses a vacuum tank clamping device which comprises a first fixing plate, a second fixing plate, a first clamping arm, a second clamping arm, a telescopic driving mechanism and a spring, the first fixing plate is fixed on a tank, and the second fixing plate is fixed on a tank flange; the telescopic driving mechanism is hinged to the first fixing plate, and the first clamping arm is hinged to the telescopic end of the telescopic driving mechanism. The second clamping arm comprises a second clamping arm connecting part and a second clamping arm supporting part, the second clamping arm supporting part is hinged to the second fixing plate, and the second clamping arm connecting part is hinged to the first clamping arm; and the spring is connected with the hinged end of the first tightening arm and the connecting part of the second tightening arm. The vacuum tank body tightening device is convenient to use, does not occupy space, and can well achieve the effect of tightening a small vacuum tank body.

The invention relates to a wiper blade (10) for cleaning a vehicle windshield (FS), having a wiper blade body (12) which extends along a longitudinal axis (22), having a wiper blade adapter (15) which is connected to the wiper blade body (12), the wiper blade adapter having a first adapter element (16) which is connected to the wiper blade body (12) and a second adapter element (18) which is connectable to a wiper arm (1), wherein the two adapter elements (16, 18) are arranged such that they can be pivoted relative to one another in a rotational axis (20) in a direction which extends perpendicular to the longitudinal axis (22), and wherein the wiper blade (10) has a flat configuration.

The present application relates to the technical field of tracking support, especially to a photovoltaic tracking support with limiting protection function, comprising a torque tube, a connecting bridge, a support seat, a support arm, a lock head, a clamp, a purlin, a first stand, a second stand, a driving mechanism and a crank, the second stand is used for installing the driving mechanism, the support seat is fixedly installed on the top of the first stand through a stand adapter, adjacent torque tubes are fixedly combined through the connecting bridge to form a continuous structure in the length direction of the torque tube, the support arm is integrally formed with the support seat, the second hanging part on the top of the support arm is aligned with the first hanging part on the connecting bridge, the connecting bridge is hung and rotated on the support arm through the cooperation of the rotating shaft, the lock head is rotatably installed on the connecting bridge, when the driving mechanism drives the torque tube to rotate, the torque tube drives the connecting bridge to synchronously rotate on the support arm, and then drives the lock head to synchronously rotate, thereby reducing the response time of the tracking support rotating to the protection angle, and improving the structural safety and wind resistance.

The invention discloses a hinge mechanism and electronic equipment, and belongs to the field of electronic equipment.The hinge mechanism comprises a base, a first swing arm, a second swing arm, a door plate, a shell connecting piece and a synchronizing shaft, the base is provided with a first rotating groove, the first end of the first swing arm is rotationally connected with the first rotating groove, and the second end of the second swing arm is rotationally connected with the second rotating groove; the second end of the first swing arm is rotationally connected with the door plate, and the end, away from the first swing arm, of the door plate is rotationally connected with the shell connecting piece. The second swing arm is rotationally connected with the base through the synchronizing shaft, the second swing arm is in sliding fit with the shell connecting piece, and the second swing arm and the first swing arm are arranged in a linkage mode so as to drive the first swing arm and the door plate to rotate relative to the base together in the process that the second swing arm rotates relative to the base.

The utility model relates to the technical field of medium-low speed magnetic levitation turnouts, in particular to a dual-drive magnetic levitation turnout. The dual-drive magnetic levitation turnout comprises a fixed stack beam, a turnout main beam body, a drive assembly and two movable stack beams, the turnout main beam body is located between the fixed stack beam and the movable stack beams and comprises a rotating beam, a linear beam and a curved beam, the curved beam and the linear beam are parallel and connected with each other, the drive assembly is arranged on the turnout main beam body, and the two movable stack beams are arranged on the rotating beam. The driving assembly drives the rotating beam to rotate relative to the fixed stack beam and drives the linear beam to rotate relative to the corresponding movable stack beam, so that the turnout main beam body is switched between a first position and a second position, the rotating beam is communicated with the linear beam at the first position, and the rotating beam is communicated with the curved beam at the second position. According to the dual-drive magnetic levitation turnout, the occupied area of the turnout is reduced, and installation of the turnout in a non-open air or a tunnel is facilitated.

The invention discloses a financial binding machine, comprising a frame, the frame is provided with a rotating shaft, the rotating shaft sleeve is provided with a gear and a handle, the frame is slidably provided with a slide plate that can be vertically lifted and lowered and meshed with the gear, a punching portion is fixed at the bottom of the slide plate, two side portions of the frame are fixed with vertical racks and meshed with the gear, the frame is provided with two vertical linear mounting grooves, and the two ends of the rotating shaft are arranged in the two mounting grooves and slidably cooperate with them. The beneficial effect of the invention is that compared with the prior art, it is more labor-saving when used.

The application relates to a flange pipe integrated processing device. The device comprises a rack, an outer die movably arranged on the rack, a forging table fixedly arranged on the rack and an inner rod rotatably arranged on the rack. The forging table is located at the limit position of the outer die movement, and the outer die and the inner rod are oppositely located on both sides of the forging table. A blank is arranged on the forging table close to one side of the outer die. The outer die reciprocally moves to act on the outside of the blank, and the inner rod rotates to act on the inside of the blank. The problems that welding processing leads to welding defects of the flange pipe and forging processing cannot be applied to batch production in the prior art are solved.

The utility model relates to cold firework rotating waterfall type spraying equipment which comprises a rack, an assembling mechanism, a spraying mechanism, a feeding mechanism and a driving mechanism, the rack comprises a mounting plate, a first shell and a second shell are arranged at the bottom of the mounting plate at intervals, and a containing space is formed between the first shell and the second shell; the injection mechanism is arranged in the containing space and comprises an air source and an injection pipe which are communicated with each other, an injection opening of the injection pipe is arranged downwards, and the injection pipe is rotationally arranged on the rack; the feeding mechanism is arranged in the first shell and communicates with the injection pipe along the rotating axis of the injection pipe, and the injection pipe is rotationally arranged relative to the feeding mechanism; the driving mechanism is arranged in the second shell, and the rotating end of the driving mechanism is connected with the injection pipe; the cold firework rotating waterfall type eruption equipment can be hung at a high position, the spraying pipe can rotate in the eruption process, the pipe opening faces downwards, the cold firework effect like a waterfall is provided, the supply stability of cold firework raw materials can be guaranteed, and therefore it is guaranteed that the fireworks are continuous in the rotating process, and the height and the like of the fireworks are kept stable.

The invention discloses full-automatic tool changing equipment and a tool changing method. The full-automatic tool changing equipment comprises a fixed platform, a movable platform, a clamping unit, a frame body, a supporting base and a driving unit, the supporting base and the driving unit are arranged on the movable platform, and the frame body is rotationally connected to one side of the supporting base; at least two groups of cutter arm units are arranged on the frame body, the cutter arm units can push cutters to the cutter shaft or place detached cutters, and the driving unit is used for driving the frame body to rotate; the movable platform can move on the fixed platform in a reciprocating mode in the x-axis direction, and the tool arm unit is in butt joint with or separated from a slitting machine tool shaft. The clamping unit is located on one side of the supporting base and used for limiting rotation of the frame body. Manual tool changing can be replaced, full-automatic tool changing is achieved, manual external interference is not needed in the tool changing period, the error-tolerant rate can be reduced, the working intensity and cost can be reduced, the overall structure is compact, and the occupied space is small.

The invention discloses a fixed-wing unmanned aerial vehicle based on a tilting mechanism and four rotors. The fixed-wing unmanned aerial vehicle comprises an unmanned aerial vehicle body, the first to fourth rotors, the tilting mechanism, a locking mechanism and a control module, the tilting mechanism comprises a rotating frame, a fixed rod, first to fourth transmission rods, first to second output rods, first to second driving straight gears, first to second driven straight gears, first to second driving bevel gears, first to fourth transmission bevel gears, and first to second driven bevel gears; the locking mechanism comprises four locking units, and each locking unit comprises a locking motor, a locking connecting rod and a locking bolt. The tilting torque is generated by changing the lift force of the front rotor wing and the rear rotor wing, the space occupied by the rotor wings in the tilting state is reduced through the transmission system, compared with other tilting mechanisms, additional steering engine control is not needed, and the structure is simple.

A labor-saving high-sealing ball valve convenient to open and close, comprising a labor-saving opening and closing mechanism, a shell and a valve body; the valve body is provided with an inlet and an outlet at left and right ends, and a valve rod passage at the top; the labor-saving opening and closing mechanism comprises a valve core assembly and an opening and closing assembly; the valve core assembly comprises a ball, an inner valve seat and an outer valve seat; the bottom of the ball is fixedly connected with the bottom end of the middle part of the valve body through a column, and the top is provided with a valve rod; the top of the inner valve seat and the outer valve seat is respectively provided with a rotating cylinder one and a rotating cylinder two, and the rotating cylinder one and the rotating cylinder two are coaxially sleeved together with the ball through the rotating cylinder one and the rotating cylinder two around the valve rod, and the valve rod, the rotating cylinder one and the rotating cylinder two extend out of the valve body through the valve rod passage; the ball, the inner valve seat and the outer valve seat are respectively provided with through holes one, two and three with the same axial height; the opening and closing assembly is fixedly connected with the rotating cylinder one and the rotating cylinder two; the labor-saving opening and closing mechanism can shorten the angle needed to be rotated when the ball valve is closed and opened, and can be more labor-saving when the ball valve is opened and closed.

The invention relates to the technical field of helicopter rotor systems, in particular to a helicopter rotor flapping limiting device which comprises a propeller hub, and a flapping limiting mechanism, a range adjusting mechanism and a double-limiting latch hook mechanism are arranged on the surface of the propeller hub in an annular array with the propeller hub as the circle center. The double-limiting lock hook mechanism comprises a first lower waving limiting lock hook, a limiting support, a second lower waving limiting lock hook, a limiting block, an extension spring and a centrifugal balancing weight which are arranged on the surface of the waving limiting mechanism. When the rotor rotates at a high speed, centrifugal force drives the centrifugal balancing weight to move, the pulling force of the extension spring is overcome, the limiting support rotates, and the first downward-waving limiting lock hook and the second downward-waving limiting lock hook are separated from the initial positions, so that the paddles can freely wave to achieve pneumatic efficiency and operation flexibility, and therefore the double lock hooks are unlocked and closed at different speeds and stages; the overcoming process of centrifugal force is divided into two stages, the action of the lock hook is in a small-angle and slow-stroke gradual change mode, the impact load is reduced, and the action stability is improved.

The invention discloses a slide way type package sorting device. The slide way type package sorting device comprises a carrying support and a carrying device arranged on the carrying support. The base comprises a base bracket; an inclined sliding way is arranged on the base support and inclines from high to low in the unloading direction, and the carrying support is in sliding connection with the base support through the inclined sliding way. A transmission device mounting position is arranged on the base; a state maintaining device is arranged on the base, is positioned above the connecting part of the loading bracket and the loading bracket of the inclined slide way, and is used for maintaining the loading state of the loading bracket; in the cargo carrying state, the state maintaining device upwards lifts the cargo carrying support connecting part to lock the cargo carrying support to the upper end of the inclined sliding way, so that the cargo carrying support does not turn over downwards. The effect of gravity is directly overcome, a large space is omitted on one side, on one hand, the device can lean against the wall, on the other hand, space is provided for sorting on the two sides, and therefore the whole device is more compact.

The utility model relates to the technical field of locks, and provides a door lock which comprises a lock shell, an inclined tongue locking piece and a closed tongue locking piece, the inclined tongue locking piece and the closed tongue locking piece are movably arranged in the lock shell, and the door lock comprises a clutch mechanism rotationally arranged on the lock shell; the latch bolt locking piece can move between a latch bolt locking position and a latch bolt unlocking position in a reciprocating mode, and the closed bolt locking piece can move between a closed bolt locking position and a closed bolt unlocking position in a reciprocating mode. When the clutch mechanism rotates by a first angle in the first direction, the tongue closing locking piece can be driven to move from the tongue closing unlocking position to the tongue closing locking position. When the clutch mechanism rotates by a second angle in the second direction opposite to the first direction, the clutch mechanism can drive the tongue closing locking piece to move from the tongue closing locking position to the tongue closing unlocking position and drive the inclined tongue locking piece to move from the inclined tongue locking position to the inclined tongue unlocking position, the first angle is smaller than the second angle, and the second angle is smaller than 360 degrees. According to the door lock, the rotation angle of a key or other non-key driving components is reduced when the lock door is opened.

The application discloses a cartridge switching valve for peritoneal dialysis, a flow channel switching method and a cartridge. The switching valve comprises a rotating valve body. Flow channels in the cartridge are uniformly arranged along the circumferential direction of the rotating valve body. A plurality of valve body flow channels are formed in the rotating valve body and are matched with the flow channels arranged in the cartridge. The number of the valve body flow channels is matched with the number of the connection mechanisms of the flow channels in the cartridge. The connection mechanisms are determined by the interval angle of two flow channels connected with each other in the cartridge. The connection of the two flow channels in the corresponding cartridges is realized by rotating the valve body flow channels to the corresponding positions. The application can realize the quick switching of the flow channels. During the switching process, only the rotation angle of the rotating valve body needs to be controlled, without the complicated control logic. The structure and the control process of the cartridge can be effectively simplified, and the failure rate is reduced.

The support module comprises a supporting assembly and a connecting frame, the first end of the supporting assembly is rotationally connected to the connecting frame, the second end of the supporting assembly is rotationally connected to a fixed base, the fixed base is fixedly connected with a vehicle body, and the connecting frame comprises a closed outer frame body structure; the rotating process of the connecting frame with the fixed base as the rotating center at least comprises a first position, and the connecting frame is completely embedded into the vehicle body when located at the first position. The rotating process of the connecting frame with the first end of the supporting assembly as the rotating center at least comprises a second position, and when the connecting frame is located at the second position, the connecting frame is higher than the supporting assembly in horizontal height and supported by the supporting assembly. The connecting frame has a two-stage rotating function through the supporting assemblies hinged to the two ends, the connecting frame can be switched from the containing position to the using position, and meanwhile the connecting frame is provided with the closed outer frame body to be stably supported by the supporting assemblies.

The invention relates to the technical field of pressure detection equipment, in particular to golf club ball head rigidity detection equipment and a method thereof. The technical problems that in the detection process of existing ball head rigidity detection equipment, assembling and disassembling operation of a ball head is tedious, the detection efficiency is affected, the ball head is fixed, ball head detection is not comprehensive enough, and the detection quality is affected are solved. The invention discloses golf club ball head rigidity detection equipment and a method thereof. The golf club ball head rigidity detection equipment comprises an operation table, a distribution box is arranged on the operation table, a rotating tray is rotationally connected to the operation table, a clamping block is connected to the rotating tray, and a golf club ball head is placed on the clamping block. A user places the golf club ball head needing to be detected in the limiting groove of the clamping block, the golf club ball head is clamped by rotating the clamping screw rod, the golf club ball head is in contact with the displacement sensor, and the golf club ball head can be quickly assembled and disassembled and can be visually detected through the mode, so that the detection efficiency is improved.

The invention relates to the technical field of photovoltaic tracking supports, in particular to a locking mechanism and a tracking support, and the locking mechanism comprises a locking piece which is rotatably installed below a torque tube and is provided with a first locking area and a second locking area; the retainer is matched with the locking part for use, the retainer is provided with a first locking area and a second locking area, and the torque tube has a passing state or a locking state when passing through the first locking area and the second locking area; in the locking state, the first locking area is attached to the first locking area or the second locking area is attached to the second locking area, so that the torque tube is prevented from continuously rotating; in a passing state, the locking piece passes through the retainer in an inclined state; the torque tube switches the passing state or the locking state through reverse rotation, the response time of the tracking support rotating to the protection angle is effectively shortened, and therefore the safety and the wind resistance of the whole tracking support are improved.

This invention discloses a rapid clamping device and method for titanium alloy hot forming dies. The device includes a pull rod, a pressure plate, a handle, an eccentric shaft, and pads. The upper end of the pull rod is a T-shaped end that hangs along a T-slot on a platform, and the lower end is provided with a support shaft. The pressure plate has a strip-shaped groove, a first arc-shaped groove on its lower surface that mates with the support shaft, and a second arc-shaped groove at the rear end of its upper surface that mates with a clamping boss at the front end. The cylindrical surface of the middle section of the eccentric shaft mates with the second arc-shaped groove, and the cylindrical platforms at both ends mate with the third arc-shaped groove of the pads with an eccentricity. The pads are placed perpendicularly and intersectingly between the pressure plate and the platform. The method includes: when installing the lower die, pushing the pull rod downwards, placing the pads below the pressure plate, and clamping the eccentric shaft via the handle; when installing the upper die, pushing the pull rod upwards, placing the pads above the pressure plate, and clamping the eccentric shaft via the handle. This invention achieves labor-saving and rapid clamping by using displacement generated by the rotation of the eccentric shaft instead of threaded translation, and is heat-resistant and has a long service life.

This invention discloses a book label pasting and laminating device, including a mounting frame, a label picking mechanism, a film picking mechanism, a label picking feedback mechanism, and a film picking feedback mechanism. The label picking mechanism provides the separated book label, and the film picking mechanism provides the separated film. The displacement of the label picking lifting beam is transmitted to the label picking feedback device via a label picking wire, allowing the feedback device to control and adjust the rotation angle of the release paper power shaft system. Similarly, the displacement of the film picking lifting beam is transmitted to the film picking feedback device via a film picking wire, allowing the feedback device to control and adjust the rotation angle of the release film power shaft system. This invention ensures that the length of the book label and film remains essentially constant during each labeling process. The laminated book label formed by the book label and film is then applied to the book, improving the consistency of the labeling effect for books in the same batch.

The utility model belongs to the technical field of cleaning, and particularly provides a cleaning system convenient for drying a roller brush, which comprises a base station and a cleaning device, the cleaning device comprises a floor brush, the roller brush and a roller brush cover positioned above the roller brush are arranged at the front part of a shell of the floor brush, and the base station is provided with an air outlet and an accommodating groove for accommodating the roller brush. The cleaning equipment is in butt joint with the base station to blow out airflow from the air outlet to dry the roller brush. The cleaning system further comprises a shielding piece movably connected with the base station or the floor brush. The shielding piece is provided with a first position and a second position. At the first position, the shielding piece does not hinder the roller brush from entering or separating from the containing groove; and at the second position, the shielding piece moves to block the gap between the containing groove and the front part of the roller brush cover so as to prevent the airflow exhausted from the air outlet from overflowing.