50results about How to "Realize mobile adjustment" patented technology

The invention relates to a curved roof curtain wall system. The curved roof curtain wall system comprises a main framework arranged on a main body structure, a plurality of first adapting pieces arranged on the side, away from the main body structure, of the main framework at intervals, second adapting pieces installed on the sides, away from the main framework, of the first adapting pieces in a swinging mode, secondary frameworks detachably installed on the sides, away from the main framework, of the second adapting pieces, a plurality of installing bases arranged at intervals and detachably arranged on the secondary frameworks in a sleeving mode, and curtain wall plates detachably installed on the sides, away from the secondary frameworks, of the installing bases. The second adapting pieces are moved and adjusted in the length direction of the first adapting pieces so that the distance between the secondary frameworks and the main framework can be adjusted, and the posture of the secondary frameworks is adjusted by adjusting the second adapting pieces in a swinging mode. A plurality of curtain wall plates are spliced and connected to form the curved roof curtain wall system, adjusting and installing can be conducted according to the design modeling of the curved roof curtain wall system, and construction is more flexible, easier and more convenient.

The invention discloses a clinical medical multi-functional stethoscope used in the department of cardiology. The clinical medical multi-functional stethoscope comprises two earring catheters with hollow structures, wherein the tops of the opposite sides of the two earring catheters are provided with auscultation earplugs, the bottom ends of the two earring catheters are both provided with short catheters, the bottom ends of the two short catheters are both connected with a three-way tube, a bottom interface of the three-way tube is connected with a long catheter, and the other end of the longcatheter is provided with a flat auscultation head. In the clinical medical multi-functional stethoscope, the flat auscultation head is convenient to disassemble and replace, the clamping force provided by an existing stethoscope only by relying on a spring is changed through the joint cooperation of a spring and a spring piece, the clamping force needed when a doctor wears the earplugs of the stethoscope is ensured, and clamping is firmer; by adjusting the tightness of nuts, integral movement adjustment of the spring piece and a spring assembly on the two earring catheters can be achieved; by arranging a magnifying lens, the doctor conveniently and accurately observe and judge patients' conditions.

The invention discloses an electrothermal blasting drying box for raw material treatment in an ore detection process and mainly relates to the field of ore detection. The electrothermal blasting drying box comprises an equipment main body. A plurality of limiting rods are arranged in a work cavity. A plurality of bearing frames are slidably arranged on the limiting rods and are provided with a holding plate. A cavity located on one side of the work cavity is formed in the equipment main body. A plurality of screws are rotationally arranged in the cavity, and the number of the screws is the same as that of the bearing frames. One bearing frame corresponds to one screw. Each bearing frame is connected with the corresponding screw through a sliding plate. The screws penetrate through the sliding plates and are in threaded connection with the sliding plates. A plurality of sliding grooves communicating with the cavity are formed in one side of the work cavity. The sliding plates are slidably connected with the sliding grooves. The electrothermal blasting drying box has the beneficial effects that the holding plate can be installed without the need for the sliding grooves, the holding plate can be adjusted at any height in the work cavity, adjustment is convenient, and labor is saved.

The invention discloses an intelligent tension detection device. Due to arrangement of an installation cavity, a ball screw, a screw nut, a positive and negative rotation motor, a movable frame, a connection block, a sliding rail and a sliding block, lifting adjustment of the movable frame can be realized; installation detection is conveniently carried out; furthermore, the stability of a liftingand adjusting process is better; movable adjustment of a first sliding block in a first sliding rail can be realized; movable adjustment of a second sliding block in a second sliding rail can be realized; an upper clamping head and a lower clamping head are conveniently corrected; due to arrangement of a first buffer part and a second buffer area, buffer protection on the first sliding block and the second sliding block can be realized; the use effect of the device can be prolonged; due to arrangement of a tension sensor and a position sensor, the tension and the displacement of the upper clamping head can be detected; automatic detection on the data can be realized; due to arrangement of a first installation groove, a first installation block, a second installation groove and a second installation block, the upper clamping head and the lower clamping head can be installed and disassembled rapidly; and the process is convenient and rapid.

The invention relates to an automatic anchor bolt thermal shrinkage production line. The automatic anchor bolt thermal shrinkage production line comprises a feeding unit, a thermal shrinkage unit and a material receiving unit; the feeding unit is used for storing anchor bolts to be subjected to thermal shrinkage processing; the thermal shrinkage unit comprises a thermal shrinkage rack and a heating device; the thermal shrinkage rack is provided with a single anchor bolt processing position; the single anchor bolt processing position is used for supporting and placing a single anchor bolt; the heating device is used for heating thermal shrinkage pipes at the two ends of the single anchor bolt to achieve thermal shrinkage processing; the material receiving unit is used for collecting anchor bolts subjected to thermal shrinkage processing; a feeding mechanism is arranged at the rear end of the feeding unit and is used for conveying the anchor bolts to the single anchor bolt processing position one by one; and a discharging mechanism is arranged at the front end of the material receiving unit and is used for transferring the anchor bolts subjected to thermal shrinkage processing to the material receiving unit from the single anchor bolt processing position. The single anchor bolt is conveyed to the single anchor bolt processing position of the thermal shrinkage unit through a feeding structure, the thermal shrinkage pipes on the two sides of the anchor bolt are correspondingly heated through the heating device, and after heating is completed, the anchor bolt is transferred to the receiving unit through the discharging mechanism, so automatic thermal shrinkage processing of the anchor bolt is conveniently achieved.

The invention relates to a movable spraying structure. The movable spraying structure is arranged in a washing machine so as to spray water to to-be-washed objects in the washing machine. The movable spraying structure comprises a waterfall spraying plate, a movable sprayer and a water supply pipe, wherein the waterfall spraying plate is arranged towards the to-be-washed objects in the washing machine; the movable sprayer is installed on the waterfall spraying plate in a sliding mode, a water inlet and a water outlet are formed in the movable sprayer, and water is sprayed at different positions in the waterfall spraying plate by sliding the movable sprayer; one end of the water supply pipe is connected with the water inlet of the movable sprayer, and the other end of the water supply pipe is communicated with a water supply unit. The invention further relates to the washing machine provided with the movable spraying structure. In the washing process, the suitable spraying height can be selected by moving the movable sprayer according to the clothing and the water lever, so that a good spraying effect is achieved.

The invention discloses a kerb installation trolley which comprises a trolley body with wheels installed at the bottom, a sliding rail is arranged at the top of the trolley body, a sliding type moving block is installed on the sliding rail in a sliding mode, and the moving block is driven by a moving motor and a gear and rack moving structure to move on the sliding rail. A first rotating disc is rotatably mounted at the top end of the moving block, a second gear is fixedly mounted on the first rotating disc, a third gear and a fourth gear are rotatably mounted at the top end of the moving block, the fourth gear is meshed with the third gear, the third gear is meshed with the second gear, a fixing rod is fixedly mounted at the top end of the moving block, and a second handle is fixedly mounted on the fourth gear; a hoisting supporting rod is installed at the top of the second gear, a pulley hoisting device which is composed of a fixed pulley and a movable pulley and driven by a lifting motor to wind up a hoisting rope is installed on the hoisting supporting rod, and a gripper used for clamping the curb is installed on the lower portion of the movable pulley. According to the installation trolley, the elevation and the axis of the curb can be easily adjusted.

The invention discloses a sprayer water diversion mechanism. The sprayer water diversion mechanism comprises a spraying arm which is adjusted and moved among different positions, a water inlet pipe which is fixedly arranged, and a rotatable water diversion piece installed on the spraying arm, wherein a plurality of different water inlets are formed in the water diversion piece; and the water diversion pieces can rotate in the circumferential direction relative to the spraying arm, so that when being in different positions, the spraying arm communicates with the water inlet pipe through the corresponding water inlets in the water diversion piece. The invention further discloses a dish-washing machine. The dish-washing machine is internally provided with the sprayer water diversion mechanismas described above. By arranging the sprayer water diversion mechanism comprising a rotatable water diversion mechanism in the dish-washing machine, the sprayer water diversion mechanism can adjust the up-down position according to different tableware in the dish-washing machine, so that a shelf in the dish-washing machine can be subjected to up-down position adjusting and moving, the space utilization rate of the dish-washing machine is greatly improved, the dish-washing machine can be suitable for cleaning various tableware, and meanwhile, the usage experience of a user for the dish-washingmachine is improved.

The invention discloses a protection device for laser welding metal. The protection device comprises a workbench, wherein the left side of the workbench is connected with a first protective cover through a first stepping motor, and the right side of the workbench is connected with a second protective cover through a second stepping motor; a first sliding groove and a second sliding groove are formed in the two sides of the workbench, wherein the first sliding groove and the second sliding groove are movably connected with a first sliding block and a second sliding block at the bottom of the first protective cover and the bottom of a second protective cover; the first protective cover and the second protective cover comprise frames, wherein grids are welded to the inner side and the outer side of each frame, and tempered glass plates are fixedly installed in the grids on the two sides; and dark acrylic plates are mounted between the tempered glass plates. According to the protection device for the laser welding metal, the protective covers can be moved, opened and closed through the stepping motors, so that a welding piece is convenient to operate and place; furthermore, an electriccylinder drives a laser welding structure, so that height adjustment is achieved, and energy consumption is reduced; and meanwhile, the tempered glass plates and the dark acrylic plates are arrangedon the protective covers so as to achieve isolation on laser radiation and strong lights.

The invention belongs to the technical field of automobile gluing, and particularly relates to an automobile processing gluing machine based on visual tracking detection. The gluing machine comprisesa machine body assembly, the machine body assembly comprises a fixed seat, a glue containing barrel, a connecting seat and a gluing head, wherein the glue containing barrel is fixedly connected with the fixed seat, the connecting seat is fixedly connected to the bottom surface of the glue containing barrel, and the gluing head is fixedly connected to the bottom surface of the connecting seat. A sliding seat is loosened by rotating a locking rod, then the sliding seat is slid and adjusted to a proper position, so that the movement and adjustment of an industrial camera in the horizontal direction can be realized; a cantilever is loosened by rotating a locking bolt, angle adjustment of the industrial camera is realized, and the adjusting process is simple; and the industrial camera can be quickly adjusted through a locking rod and the locking bolt, a large amount of time consumed by dismounting and mounting the bolt and nut is effectively saved, the time for stopping equipment is shortened, the influence on a production line is reduced, and the adjusting precision is high.

The invention discloses a rotary lifting regulation type ink viscosity measuring device. The rotary lifting regulation type ink viscosity measuring device comprises a protective tube, wherein a viscosity detection head is arranged in the protective tube in a sleeving manner, a limiting ball is arranged at the upper end of the viscosity detection head, a positioning tube is arranged on the peripheral surface of the protective tube in the sleeving manner, a notch is formed in one side of the positioning tube, a buckle rod is arranged on one side of the positioning tube, the two ends of the buckle rod are arranged on one side of the positioning tube, a rotating wheel is arranged on the buckle rod, the rotating wheel is mounted on the buckle rod through a connecting shaft, and the protective tube is in threaded connection with the rotating wheel; an operating rod is arranged on the outer side wall of the end part of the positioning tube, the protective tube is internally provided with a data wire, one end of the data wire is connected with the viscosity detection head, and the other end of the data wire is connected with a capillary type viscometer. The viscosity detection head in the invention is immersed into ink, so that the capillary type viscometer can be used for measuring ink viscosity conveniently through the viscosity detection head.

The invention discloses a high-molecular plate impact force detection line for high-molecular material production, which comprises a material conveying device and a controller, a high-molecular platepile is placed on a conveying belt of the material conveying device, and a detection conveying device is arranged on one side of the discharge end of the material conveying device. According to the high polymer plate impact force detection line for high polymer material production, the material conveying device, the high polymer plate pile, the first displacement adsorption device, the detection conveying device, the impact force detection structure, the second displacement adsorption device, the finished product conveying device, the waste conveying device and the material collecting cover are used in cooperation; continuous detection of the impact force performance of the plate is achieved, frequent manual feeding, discharging and replacement of the plate on the device are not needed, the working steps are effectively reduced, then the working efficiency is greatly improved, meanwhile, the links needing manual operation are greatly reduced, time and labor are saved, and the working efficiency is high.

The invention discloses no-pressure storage bottle conveying equipment, which comprises a rack, a conveying belt arranged on the rack, and a variable frequency motor for driving the conveying belt, wherein the rack is also provided with a lubrication device; the lubrication device comprises a lubrication plate, a lubrication component arranged on the lubrication plate, and a conveying pipe connected with the lubrication plate; a storage cavity for containing lubricant is arranged in the lubricating plate; one end of the conveying pipe is connected with the storage cavity, and the other end isexternally connected with a lubricant storage tank through an oil pump; the lubrication component comprises a plurality of balls arranged along the width direction of the conveying belt; parts of eachball extend into the storage cavity; and the plurality of balls are abutted against the conveying belt. Since the oil feeding of the conveying belt adopts a mode that the balls are dipped into oil and are coated, the oil feeding evenness of the conveying belt is favorably guaranteed.

The invention provides a small-tonnage crane, a traveling beam thereof and a horizontal wheel device for the traveling beam. The traveling beam comprises a beam body, a left horizontal wheel device and a right horizontal wheel device are mounted on the beam body, each of the left horizontal wheel device and the right horizontal wheel device comprises a horizontal wheel carrier, a horizontal wheel and a horizontal wheel connecting frame, and each horizontal wheel connecting frame is fixedly arranged on the beam body integrally or in a split manner. A moving adjustment structure for guiding each horizontal wheel carrier to achieve guide moving adjustment on the corresponding horizontal wheel connecting frame along the left-right direction is arranged between the horizontal wheel carrier and the horizontal wheel connecting frame of each horizontal wheel device, and a fixing structure for fixedly assembling the horizontal wheel carrier and the horizontal wheel connecting frame when the horizontal wheel carrier with the horizontal wheel is adjusted to be in place by moving is further arranged between the horizontal wheel carrier and the horizontal wheel connecting frame. The traveling beam has the advantages that since the positions of the horizontal wheel carriers in the left-right direction can be adjusted through the moving adjustment structures, the horizontal wheel devices an be adjusted according to the practical conditions, and normal and effective operation of the horizontal wheel devices is guaranteed.

The invention discloses a rotary lifting mechanism of an automatic welding auxiliary frame. The rotary lifting mechanism comprises a fixed base, wherein a vertical main rod is hinged to the middle ofthe top surface of the fixed base through a bearing; a transmission gear is fixed at the bottom end of the vertical main rod; a supporting frame is fixed on one side of the top surface of the fixed base; a rotary servo motor is fixed on the top surface of a top plate of the supporting frame; an output shaft of the rotary servo motor penetrates through the bottom surface of the top plate of the supporting frame and is fixedly provided with a driving gear; the driving gear is meshed with the transmission gear; and a vertical lifting mechanism is fixed on one side of the vertical main rod, and atransverse moving mechanism is fixed on a lifting block of the vertical lifting mechanism. According to the rotary lifting mechanism, a welding head can be installed on a lower connecting horizontal plate, the vertical height adjustment and the transverse position adjustment can be realized, the adjustment is convenient, the adjustment is realized by adopting the rotation of a vertical adjusting screw rod and a transverse adjusting screw rod, the adjusting precision is high, and the movement adjustment in a specific interval can be realized.

The invention relates to the field of sheet metal machining, in particular to a single-sided spraying treatment system for an automobile sheet metal part. The system comprises a base, placing groovesare symmetrically formed in the two sides of the base, the bottoms of the placing grooves are each of an arc-shaped structure, a plurality of adjusting grooves of arc-shaped structures are symmetrically formed in the inner walls of the placing grooves, and the adjusting grooves communicate with one another. A plurality of connecting bases are symmetrically inserted into the adjusting grooves, theends, inserted into the adjusting grooves, of the connecting bases are sleeved with gaskets of annular structures, and limiting plates of annular structures are fixedly installed at the bottoms of theconnecting bases. First springs are fixedly installed at the positions, between the gaskets and the limiting plates, of the outer sides of the ends, inserted into the adjusting grooves, of the connecting bases, a plurality of clamping teeth are symmetrically and fixedly installed at the sides, away from the first springs, of the limiting plates, first tooth grooves are formed in the adjusting grooves, and the clamping teeth and the first tooth grooves are symmetrically arranged and engaged. The single-sided spraying treatment system can be used for clamping fenders in automobile sheet metal parts and is suitable for popularization.

The invention provides a high-stability annular inductor. The high-stability annular inductor comprises an annular magnetic core, a first winding coil, a second winding coil, a reinforcing frame and abase assembly. The first winding coil is wound on one side of the annular magnetic core, and the second winding coil is wound on the other side of the annular magnetic core. The reinforcing frame comprises two sub-frames. The sub-frame comprises a top beam, a middle beam, a bottom beam and side rods. The two top beams are connected in a clamped mode, the two middle beams are connected in a clamped mode, the two bottom beams are connected in a clamped mode, and the two side rods abut against the two sides of the annular magnetic core respectively. The base assembly comprises a base body, two first bearing sleeves, two first pins, two second bearing sleeves and two second pins. The base body is provided with a fixing slot and an arc-shaped limiting groove, the annular magnetic core is partially contained in the arc-shaped limiting groove, and the two bottom beams are inserted into the fixing slot and connected with the base body in a clamped mode. Each first bearing sleeve is accommodated in one first adjusting groove and is in sliding connection with the seat body, and each first pin penetrates through one first bearing sleeve. According to the annular inductor, the stability performance is improved.

The invention discloses a cultivation soil rolling device for a tree planting machine. The cultivation soil rolling device comprises a shell, two front sides of the shell are provided with slots respectively, the shell is internally provided with an open cavity, a rolling wheel is arranged on the front portion of the shell, two front sides of the shell are provided with clamping grooves respectively, a mounting shaft is axially arranged on the rolling wheel, and the ends of the mounting shaft are clamped in the clamping grooves. The rolling wheel sleeves the outer periphery of a hub which sleeves the outer periphery of the mounting shaft, and soil conveying plates are arranged on the lower portion of a frame which is arranged on the rear portion of the frame. By the rolling wheel, cultivation soil in land for tree planting can be rolled, and cultivation soil on planted trees can be rolled as well; by the soil conveying plates, guided conveying of clay on the rolling wheel can be realized conveniently; by an extension plate, guided conveying of the clay can be realized, and convenience and quickness in clay output are achieved.

The invention discloses a pitch angle adjusting device of a synthetic aperture radar. The pitch angle adjusting device comprises two symmetrical supporting plates and a connecting plate arranged between the two support plates and fixedly connected with the two supporting plates, a motor is fixedly mounted on the upper end surface of the upper one of the two supporting plates, the motor is connected with a threaded rotating shaft rotationally arranged in the lower supporting plate through a motor shaft, a lifting block with one side abutting against the connecting plate is installed on the outer edge face of the threaded rotating shaft in a threaded fit mode, a detection device is detachably installed on one side of the lifting block, and the detection device comprises two symmetrical U-shaped side plates and an angle scale arranged on one side of one U-shaped side plate. The pitch angle adjusting device of the synthetic aperture radar is reasonable in structure, the position of the radar can be conveniently adjusted, the monitoring range is enlarged, meanwhile, the current angle condition can be conveniently and visually known, accurate adjustment is facilitated, and the practicability is high.

The invention relates to a crane slewing bearing assembly tool. The crane slewing bearing assembly tool comprises a slewing table supporting seat, a slewing table supporting face used for supporting aslewing table is arranged on the slewing table supporting seat, a lifting frame is arranged on the position, below the slewing table supporting face, of the slewing table supporting seat, a slewing bearing supporting face used for supporting a slewing bearing is arranged on the lifting frame, and a lifting mechanism used for driving the lifting frame to ascend and descend is arranged between thelifting frame and the slewing table supporting seat. An operator can place a slewing bearing needing to be assembled with a crane slewing table onto the lifting frame on the slewing table supporting seat, and then place the crane slewing table onto the slewing table supporting face of the slewing table supporting seat so as to support the crane slewing table, the lifting mechanism drives the lifting frame to ascend and descend, then the slewing bearing placed on the lifting frame and the crane slewing table are driven to be mounted and fixed, overturning operation on the crane slewing table isavoided, and the problem of low assembly efficiency of the slewing bearing is solved.

The invention relates to a movable spraying structure, which is arranged in a washing machine to spray water to the clothes to be washed in the washing machine, and the waterfall plate is set facing the clothes to be washed in the washing machine; The movable nozzle has a water inlet and a water outlet, and sprays water at different positions on the waterfall plate by sliding the movable nozzle; one end of the water supply pipe is connected with the water inlet of the movable nozzle, and the other end is connected with the water supply The unit is connected. The present invention also relates to a washing machine equipped with the above-mentioned movable spraying structure. In the washing process, the present invention can select a suitable spraying height by moving the movable spray head according to the clothes and water level, so as to achieve better spraying effect.

The invention discloses a voice-activated movable folder. The voice-activated movable folder is characterized in that a left fixing plate (6), a middle moving plate (8) and a right fixing plate (7) are arranged on a base (1); a control mainboard (2) and a motor (5) are arranged on the portion, on the right side of the right fixing plate (7), of the base; the input end (2a) of the control mainboard (2) is connected with a power source, and the output end (2b) is connected with the motor (5); the motor (5) is connected with a lead screw (12); and the middle portion of the lead screw (12) and an internal threaded hole (8c) in the bottom of the moving plate (8) are arranged in a sleeving manner, and the left end of the lead screw (12) is sleeved with an open hole (6a) in the bottom of the left fixing plate (6) through a bearing. The voice-activated movable folder is ingenious in design and very suitable for storing materials and files with different thicknesses; and when the materials and the files are clamped through the moving plate, it can be guaranteed that turned edges and turned corners are avoided after long-time placing, the anti-theft function is achieved as well, and meanwhile the voice-activated movable folder is simple in structure and easy to popularize.

The invention discloses an assembly type suspended ceiling structure facilitating installation of an electric curtain. The assembly type suspended ceiling structure comprises a first shell, wherein first T-shaped plates are welded on both sides of the first shell, second L-shaped plates are arranged on both sides of the first shell, and a plate body is hinged on the front surface of the first shell through hinges. When the assembly type suspended ceiling structure is used, the distance between the two second L-shaped plates on the two sides of the first shell can be adjusted leftwards and rightwards to change the distance between the first shell and a suspended ceiling during installation, the plate body is opened after the second L-shaped plates are installed, two sliding blocks are slidto drive third bolts to move, the third bolts can be used for being matched with beam connecting holes of different shapes, the two second T-shaped plates are adjusted after the third bolts are connected, so that two rod bodies on the rear surface of the first shell and second connecting plates move left and right, the second connecting plates are fixed to the mounting positions through fifth bolts, by means of the structure, the distance between the left side and the right side of the structure can be adjusted, and the mounting positions of the rear surface can be moved and adjusted.

The invention discloses a rolling mill roller moving support structure. The structure comprises a support body, a moving adjusting device and a locking device, wherein the support body comprises a base, a lower roller support and an auxiliary roller support; the lower roller support is used for supporting a rolling mill lower rolling roller; the auxiliary roller support is used for supporting a rolling mill auxiliary roller; the lower roller support is fixed on the auxiliary roller support; a sliding rail is fixedly mounted at the bottom end of the auxiliary roller support; the sliding rail is glidingly matched with the interior of a sliding chute in the upper end of the base; a pressing plate I and a pressing plate II are respectively pressed on the two sides of the auxiliary roller support and are fixed on the upper end surface of the base; a rotating shaft is rotated through a spanner or a special tool, so that a gear rotates; as the gear is fixed on the base through the rotating shaft and a fixed seat, a roller support is driven to move with a rack. Moving adjustment of the roller support is realized, and the adjustment time is greatly shortened.

The invention discloses an automatic suction-off device of a nuclear power station circulating water filtering system. The automatic suction-off device comprises a connector, a suction-off pump, a suction-off pipeline and a collecting pipe ditch, wherein the suction-off pump is connected to the lower portion of the suction-off platform in a lifting mode and connected to a collecting net of the circulating water filtering system through the connector, and seawater and garbage on the collecting net are sucked in, the collecting pipe ditch is arranged on the suction-off platform, the first end of the suction-off pipeline is connected to the suction-off pump, the second end of the suction-off pipeline extends to the suction-off platform and faces the collecting pipe ditch, and the seawater and garbage pumped by the suction-off pump are conveyed into the collecting pipe ditch through the suction-off pipeline. According to the automatic suction-off device of the nuclear power station circulating water filtering system, sundries intercepted on the collecting net are sucked and collected in a suction-off mode, manual intervention does not need, the height of the suction-off pump for suction can be adjusted, up-and-down movement adjustment along with the tide level is achieved, and the device is suitable for the used environment of a large-tide-range factory site.

The invention discloses a printing equipment mold switching device which comprises a machine box, a machine frame is arranged at the top end of the machine box, longitudinal fixing blocks are symmetrically arranged in the machine frame, transverse fixing blocks are arranged on the longitudinal fixing blocks, a cover mold device assembly is arranged on the inner sides of the transverse fixing blocks, and a pressing plate platform is arranged on the machine frame. According to the mold switching device, mold switching equipment is improved, a plate mold roller can be directly placed in the mold switching platform conveniently, movement adjustment of a mold is achieved under driving of the air cylinder, rapid mold attaching is achieved, and therefore the operation efficiency and safety of the plate mold roller are improved; printed products with different thicknesses can be conveniently fixed through the mold switching platform, data can be conveniently transmitted to a data center, automatic amplification registration is realized, and the printing template registration accuracy of the products is improved; and positioning can be conveniently carried out according to the heights of the plate mold rollers of the printed products with different thicknesses through the limiting device, and therefore the lifting height of the air cylinder can be conveniently adjusted.