270results about How to "Reliable action" patented technology

The utility model discloses a transplanter duckbilled planter and brush transmission mechanism with a soil cleaning function, which comprises a mounting plate, a comprehensive transmission mechanism is mounted on the mounting plate, a brush support is further mounted on a frame of a transplanter, a swing plate is rotatably connected to the brush support through a hinge seat, a brush shaft is mounted at the other end of the swing plate, and the brush shaft is rotatably connected to the brush support through a hinge seat. The brush shaft is fixedly connected with a cylindrical brush, a brush transmission wheel is installed on the brush shaft, and the brush transmission wheel is in transmission connection with the brush driving wheel through a transmission chain. The comprehensive transmission mechanism is used for driving the duckbilled planting device to vertically rotate, driving the duckbilled planting device to periodically open and close and driving the brush to periodically swing along with the duckbilled planting device; an opening part and a closing part are arranged in the rotating track of the duckbilled planting device, and when the duckbilled planting device is located at the opening part in the rotating track of the duckbilled planting device, the brush swings along with the duckbilled planting device and is connected with the duckbilled planting device. When the brush rotates, the closed part in the rotating track of the duckbilled planting device is in close contact with the duckbilled planting device, soil impurities adhered to the inner wall and the outer wall of the duckbilled planting device are cleaned, the cleaning effect is good, the soil cleaning efficiency is high, manual cleaning can be carried out without shutdown, and the plant transplanting efficiency is remarkably improved.

The utility model discloses a double-row duckbilled transplanter which comprises a walking chassis, and more than two duckbilled transplanters, a seedling transmission device and a seedling feeding device which are arranged on the walking chassis, the duckbilled transplanters are respectively arranged on two opposite sides of the seedling feeding device, the seedling transmission device is arranged above the seedling feeding device, and the seedling feeding device is arranged on the walking chassis. Seedlings are conveyed to the position below the seedling conveying device through the seedling conveying device, the seedlings are lifted upwards through the seedling conveying device and then conveyed into the duckbilled transplanting devices on the two sides, and the seedlings are vertically inserted into soil through the duckbilled transplanting devices. The double-row duckbilled transplanter has the advantages of being small in manual labor amount, high in transplanting efficiency and good in transplanting effect.

The utility model discloses a rotary type playing card dealing device, which relates to the technical field of dealing machines, and comprises a base and a dealing part, the dealing part is arranged on the base, a card outlet is arranged on the dealing part, the dealing part comprises a card placing part and a card playing part, the dealing part comprises an upper cover, and the upper cover is arranged on the base. The upper cover is used for covering the card placing part and the card playing part; the automatic card issuing device is simple in structure, reliable in action, clear in matching relation among components, not prone to making mistakes, good in card issuing accuracy, free of vibration displacement and capable of well solving the inertia problem through matching of the photoelectric switch and the direction control piece, meanwhile, the automatic card issuing device is provided with a device for preventing card sticking, low in error rate and high in practicability. The card pressing structure enables the playing cards to be discharged smoothly, and the playing cards are always in contact with the power component in the moving process, so that the card blocking phenomenon is avoided.

The utility model discloses a wiring terminal assembly machine. The problem that an existing wiring terminal is difficult to assemble and wastes time and labor is solved. The device comprises a rack, the turntable is arranged on the rack, and an assembly fixture is arranged on the turntable; the wiring frame feeding device is arranged on the rack and used for feeding a wiring frame; the screw feeding device is arranged on the rack and used for feeding screws and transferring the screws into the wiring frame; the copper sheet feeding device is arranged on the rack and used for feeding copper sheets; the screw tightening device is arranged on the rack and used for tightening screws; and the turntable drives the assembling clamps arranged on the turntable to sequentially rotate to the wiring frame feeding device, the screw feeding device, the copper sheet feeding device and the screw turning device for feeding and processing. The beneficial effects of the utility model are that the integrated assembly of the wiring terminal is realized, the production cost is greatly reduced, the production efficiency is improved, and the product size is small. The utility model also has the advantages of simple structure, convenience in assembly, reliable action, long service life and the like.

The utility model discloses a brake main shaft capable of braking stably, which relates to the technical field of brake main shafts and comprises a brake main shaft main body and a brake disc. The servo motor drives the supporting shaft and the gear to rotate reversely, the gear rotates reversely to drive the fluted disc, the connecting disc and the two sets of arc-shaped grooves to rotate forwards, the two sets of arc-shaped grooves rotate forwards to push the distance between the two sets of connecting shafts to be gradually shortened, and the two sets of connecting shafts move to drive the two sets of clamping brake pads to move. The two sets of clamping brake pads slide on the inner sides of the sliding grooves, the inner sides of the two sets of clamping brake pads gradually get close to the outer wall of the brake disc, the outer wall of the brake disc is braked through the two sets of clamping brake pads, so that the brake disc brakes the brake main shaft body, and the brake main shaft is stably braked through the clamping brake pads; through mechanical braking, the braking mechanism of the braking main shaft is simple in structure, reliable in action, large in braking torque, rapid in braking and convenient to maintain.

The invention discloses a building body unit capable of expanding and shrinking a space, a building body and equipment, and relates to the technical field of engineering constructions.The building body unit has a shrinking form and an expanding form which can be switched mutually and comprises a reference part, a plurality of first expanding parts and a plurality of second expanding parts; the number of times that the same first expansion piece and the same second expansion piece execute linear movement in the same axial direction or execute rotary movement around the same axial direction is one time. According to the building body unit, the building body and the equipment, each expansion piece is controlled to execute one-time linear movement or rotary movement in the same axial direction, the problem of more interference between the expansion pieces in the three-dimensional space deformation process can be solved, the implementation difficulty and cost of synchronous movement of the same expansion piece are effectively reduced, and the construction efficiency is improved. And the control precision of synchronous movement is improved, so that the deformation difficulty and the deformation cost of the expandable space are greatly reduced, and the feasibility, the stability and the reliability of the expandable space in engineering are improved.

The utility model relates to a miniature residual-current circuit breaker, which comprises a shell, an operating mechanism, a moving contact, a static contact, an arc extinguish chamber and a residual-current release, a residual-current indicating mechanism is arranged on the shell corresponding to a pull rod of the residual-current release, and the residual-current indicating mechanism comprises a residual-current indicating piece and a pressure spring arranged between the residual-current indicating piece and the shell. One end of the electric leakage indicating piece is provided with a positioning hole matched with a pull rod of the electric leakage tripping device, the pull rod is provided with a positioning boss matched with the positioning hole, the positioning boss is clamped in the positioning hole to form clamping matching of the pull rod and the electric leakage indicating piece, the other end of the electric leakage indicating piece is provided with an indicating part, and the indicating part is provided with an elastic part. And an indicating hole is arranged on the shell corresponding to the indicating part. The electric leakage indicator has the advantages of simple structure, stable and reliable performance, reliable electric leakage indication and convenience in assembly.

The invention relates to an active power distribution network negative sequence protection method based on 5G edge calculation. The invention discloses an active power distribution network negative sequence protection method based on 5G edge calculation, and the method comprises the steps: S10, an end layer detects the abrupt change of a negative sequence voltage, transmits a protection starting message to an edge layer, and then transmits a data uploading signal to all intelligent terminals of the end layer through the edge layer; the end layer collects a negative sequence characteristic component and sends the negative sequence characteristic component to the edge layer; s20, after the side layer receives the protection starting message, downloading an incidence matrix T of the topological structure of the active power distribution network from the cloud layer, and generating row vectors V and D from the received data of the negative sequence characteristic component to judge a fault branch; and S30, the edge layer issues an action signal according to a judgment result of the step S20, and the end layer trips off the circuit breaker after receiving the action signal to remove a fault. The active power distribution network negative sequence protection method based on 5G edge calculation is suitable for protection of asymmetric faults of an active power distribution network.

The utility model discloses a steel ladle covering and uncovering device, and particularly relates to the technical field of steel ladle covering system design, the steel ladle covering and uncovering device comprises a front bearing seat, a rear bearing seat, a front rotating shaft, a rear rotating shaft, an oil cylinder, a steel wire rope, a front inserting plate, a rear inserting plate and the like, a connecting rib plate is fixedly connected to the middle of the front connecting rod and sequentially drives the front connecting rod and the front inserting plate to move. The two ends of the rear rotating shaft are fixedly connected with transmission rib plates, the middle of the rear rotating shaft is fixedly connected with a driving rib plate, the bottoms of the transmission rib plates sequentially drive the rear connecting rod and the rear inserting plate to move through the rotating shaft, and the oil cylinder is used for driving the driving rib plate to rotate. Compared with the prior art, the device is controlled by the hydraulic oil cylinder, automatic covering and uncovering actions of the steel ladle can be realized, manual operation is not needed, the action is reliable and accurate, the operation is simple and convenient, the labor cost is saved, the operation time is shortened, and heat loss and temperature drop of molten steel in the steel ladle can be obviously reduced.

The utility model provides a traction mechanism and an automatic threading machine. The traction mechanism comprises a movable carrier, a driving chain and a packing belt connecting structure, the traction mechanism is provided with a traction piece, the traction piece is provided with the packing belt connecting structure, and the traction piece is connected with the driving chain and can be driven by the driving chain to move; the movable carrier is provided with an angle adjusting mechanism and a driving assembly thereof, the angle adjusting mechanism can be driven by the driving assembly to rotate so as to adjust the angle, and the traction piece is detachably connected with the angle adjusting mechanism and is borne on the movable carrier before being separated from the angle adjusting mechanism; and the belt can be driven by the angle adjusting mechanism to rotate to an overturning angle, is separated from the angle adjusting mechanism under the driving of the driving chain, and moves upwards to continue threading. The traction mechanism provided by the utility model can automatically turn over, reduces impact, is small in vibration, reliable and stable in action, can be controlled by the motor to actively turn over, can be controlled to turn over more easily and reliably, and is long in service life.

The utility model discloses a convenient transferring device. The problems that an existing transferring device is complex in structure and large in occupied space are solved. When a conveyed goods recognition sensor recognizes that a conveyed workpiece is a branch line conveying object, an electric controller of a linear jacking motor (6) controls the linear jacking motor (6) to be started, a cantilever type square swing frame (8) rises, and when the conveyed workpiece is conveyed to a main line transmission roller (2) on a roller type conveying main line support (1) at the intersection of the conveyed workpiece and a roller type conveying branch line support (3), the cantilever type square swing frame (8) stops working. At the moment, the annular conveying belt (9) is just lifted to a horizontal state, the height of the annular conveying belt (9) in the horizontal state is higher than that of the main line transmission roller (2), the conveyed workpieces are transferred to the annular conveying belt (9), the annular conveying belt (9) is driven by a power roller (10), the conveyed workpieces are transversely conveyed to a branch line transmission roller (4), and flow dividing of the conveyed workpieces is achieved; the device is simple in structure, reliable in action and low in production cost.

The invention provides a compaction control system of a heat treatment furnace door, which comprises a mechanical structure and software control, the mechanical structure comprises six hinge mounting seats mounted on the outer side of a furnace chamber, and the six hinge mounting seats are respectively arranged on the upper, middle and lower parts of the left and right sides of the furnace chamber; an air cylinder and a curved surface pressing block mechanism are installed on each hinge installation base, the air cylinders move to drive the curved surface pressing block mechanisms to do curvilinear motion, and rolling bearings are symmetrically installed on each curved surface pressing block mechanism in the axial direction; a metal protection plate is installed at the corresponding position of the furnace door, when an air cylinder moves forwards or backwards, a pressing block on a curved surface pressing block mechanism is driven to do curvilinear motion, the furnace door is pressed through a rolling bearing, and the rolling bearing makes rolling motion after making contact with the metal protection plate. Software control adopts synchronous action control of six air cylinder systems on the left side and the right side, air supply and exhaust of air cylinders are independently controlled through middle-sealed type electromagnetic reversing valves respectively, and the air cylinders adjust clamping blocks to act synchronously through precise exhaust throttling valves.

The invention relates to the technical field of electromagnetic repulsion mechanisms, and discloses an electromagnetic repulsion device which comprises a plurality of electromagnetic driving units, each electromagnetic driving unit comprises a driving part and a driving rod extending in the vertical direction, the power output end of each driving part is connected with the corresponding driving rod and used for driving the corresponding driving rod to slide in the vertical direction, and a contact is arranged at the upper end of each driving rod; and the driving rods of the plurality of electromagnetic driving units are detachably arranged on the synchronous disc in a penetrating manner. According to the electromagnetic repulsion device provided by the invention, reliable action of the circuit breaker can still be kept when one operating mechanism breaks down, and the requirement of synchronous and rapid opening and closing is met.

The application discloses an online automatic measuring device for the wall thickness of a high-temperature steel pipe. The device comprises a steel pipe guide column, a transmission ring, a main frame assembly, a connecting rod assembly and a first adjusting assembly. The steel pipe guide column is arranged in the main frame assembly and is used for conveying a steel pipe to be measured. The transmission ring is coaxially arranged outside the steel pipe guide column and is arranged close to the steel pipe outlet of the steel pipe guide column. The transmission ring is connected to the outlet side plate of the main frame assembly through the first adjusting assembly. A plurality of connecting rod assemblies are arranged at intervals along the circumference and are arranged close to the steel pipe inlet of the steel pipe guide column. Each connecting rod assembly extends into the steel pipe guide column and is provided with a detection assembly. The connecting rod assembly is connected to the inlet side plate of the main frame assembly and is connected to the transmission ring. The device can be used for long-time online measurement of the wall thickness of the steel pipe at high temperature (600-1000 DEG C), realizes real-time synchronization of relevant data, greatly improves the qualified rate of the finished steel pipe and reduces the cost of the production line.

The invention relates to the technical field of metal heat treatment, in particular to a high-temperature alloy strip automatic switching water-cooling annealing device and an annealing method thereof.The high-temperature alloy strip automatic switching water-cooling annealing device comprises a main body frame, a sliding seat is slidably arranged on the main body frame, a mounting seat and an adjusting seat are slidably arranged on the sliding seat, the mounting seat is fixed to the sliding seat, and the adjusting seat is slidably arranged on the sliding seat; a bearing table used for containing strips is arranged on the mounting base, a spring is connected between the mounting base and the spring, two lead screws are rotationally arranged on the main body frame, the lead screws penetrate through the sliding base, the mounting base and the adjusting base and are in threaded connection with the adjusting base, a top frame is arranged on the main body frame, and a water supply pipe is arranged on the main body frame. The single driving source is used for sequentially and automatically completing strip conveying positioning and gradual flow adjustment from small to large, shock cooling is effectively avoided, the annealing quality and uniformity are improved, the structure is compact, the automation degree is high, and operation is easy and convenient.

The utility model discloses a mixing device for breeding feed. The mixing device comprises a weighing mounting table, a mixing mechanism, a feeding platform, a weighing mechanism and a material elevator, the weighing mechanism comprises a hollow weighing barrel, a plurality of weighing sensor assemblies annularly arranged on the peripheral edge of the weighing barrel, a pair of lower cover plates arranged on the lower portion of the weighing barrel, and a cover plate switch execution mechanism arranged on the edge of the weighing barrel and driving the lower cover plates to be opened or closed. The mixing mechanism comprises a stirring barrel mounting seat, a stirring barrel which is arranged on the stirring barrel mounting seat and is horizontally arranged, a stirring paddle which is arranged in the stirring barrel along the transverse direction, a discharging opening which is formed in the bottom of the stirring barrel, and a discharging driving cylinder which is arranged at the lower part of the stirring barrel and is used for driving the discharging opening to be opened or closed; the motor speed reducer assembly is arranged on the stirring barrel mounting seat and is in linkage connection with the stirring paddle, and the feeding hole is formed in the stirring barrel; and the feeding hole is connected with an outlet of a material elevator.

This invention provides a chip inspection device with a defective product collection function, including a collection frame with multiple internal partitions. A rotary motor is fixedly connected to one side of the collection frame, and a positioning gear ring is fixedly connected to the upper side of the rotary motor. A rotary support is fixedly connected to the power output end of the rotary motor. Multiple rotary joints are fixedly connected to one side of the rotary support, and a flip gear is fixedly connected to the movable end of each rotary joint. A micro switch is fixedly connected to one side of the flip gear. The rotary motor drives the rotary support to rotate, and the meshing relationship between the positioning gear ring and the flip gear causes the chip to automatically flip during rotation. When the rotary support rotates 180 degrees, the flip gear can rotate 360 ​​degrees, thereby enabling image inspection of both the front and back sides of the chip at different workstations. This allows for double-sided inspection to be completed in one go, improving inspection efficiency. At the same time, the chip's falling position can help determine the defective surface, facilitating classified collection.

A kind of fire generator and instantaneous trigger device.The existing fire control mode single and unstable problem is solved.It includes firing pin and fire generator, the automobile fire generator includes first fire shell;Second fire shell, the second fire shell and first fire shell are mutually matched to form charge cavity;The launch powder and the firing powder for igniting launch powder after first fire shell is hit are arranged in the charge cavity;First electrode, insert into charge cavity through first fire shell;Second electrode, insert into charge cavity through first fire shell;Bridge wire, the first electrode is connected with second electrode by bridge wire;The second fire shell has first position when installing and second position when firing powder and launch powder are excited and separate from first fire shell.The utility model also has the advantages of simple structure, convenient assembly, reliable action, long service life, high safety etc..

The present invention discloses an integrated device for tightening, gluing and detecting a plastic shell cyclone coarse filter, comprising a frame-type frame, in which a supporting mechanism for supporting the internal structure of the plastic shell cyclone coarse filter, a tightening mechanism for tightening the upper nut of the central axis of the plastic shell cyclone coarse filter, a gluing mechanism for spraying glue on the inner surface of the side wall at the circumferential edge of the connecting plate of the plastic shell cyclone coarse filter, a pressing mechanism for pressing the edge top of the connecting plate of the plastic shell cyclone coarse filter, and a detection mechanism for detecting the smoothness of rotation of rotating blades are arranged. The present invention completes the three operations of tightening nuts, spraying glue and detecting rotating blades through mechanical operations, thereby improving the consistency of products, avoiding defects such as inconsistent quality and missed detection caused by manual operations, improving product quality as a whole, reducing labor intensity, and greatly improving work efficiency.

The utility model discloses an air bellow of an electronic tag packaging machine, which comprises a shell (1) and is characterized in that the top of the shell (1) is open, two end plates of the shell (1) are respectively provided with an electric push rod (2), the working ends of the electric push rods (2) are connected with the centroids of closing plates (3), the closing plates (3) are matched with the section of the shell (1) in shape, the two closing plates (3) are parallel to each other, and the two closing plates (3) are connected with the shell (1). Two sides of each closing plate (3) are provided with sliding blocks (4), the sliding blocks (4) are connected to sliding rails (8) in a sliding mode, the sliding rails (8) are arranged on two side plates of the shell (1) and are distributed in the length direction of the shell (1), a plurality of through holes (6) distributed in an array mode are formed in a bottom plate (5) of the shell (1), an array formed by the through holes (6) is located between the two closing plates (3), and the sliding blocks (4) are connected to the sliding rails (8) in a sliding mode. And a fan (7) is arranged on the bottom plate (5) below the through hole (6).

The utility model relates to an electrical cabinet hinge and an electrical cabinet. The technical problem to be solved by the utility model is to provide an electrical cabinet hinge and an electrical cabinet provided with the same. According to the technical scheme, the hinge comprises a hinge support, a hinge overturning piece, a hinge connecting rod and a hinge cover, the hinge support comprises a support body, one end of the support body is vertically bent inwards to form a support connecting part, the end of the support connecting part is bent to form a support arc butt joint part, and the support arc butt joint part is connected with the hinge overturning piece. A support positioning opening is formed in the middle of the support arc butt joint part, a support butt joint hole is formed in the support arc butt joint part, and a support fixing hole is formed in the support body. The hinge overturning piece comprises a square overturning block. Compared with the prior art, the hinge turnover device has the advantages that the hinge turnover piece and the hinge support can enable the cabinet door to be turned over more smoothly and not prone to clamping stagnation, the turnover angle is larger than that of a traditional cabinet door, and follow-up door opening maintenance is facilitated.

The utility model discloses a contact part and relay, this contact part includes at least one switch module, this switch module includes at least two along the first direction arrangement's moving contact piece, and with each moving contact piece respectively corresponding at least two static contact piece, in switch module, each moving contact piece has the fixed end and the movable end along the second direction distribution, and the fixed end is opposite the static contact piece fixed of this moving contact piece, and the movable end is suitable for the direct action or swing in third direction opposite this moving contact piece's fixed end to with corresponding static contact piece close or disconnect, wherein, at least two in the first direction adjacent moving contact piece's movable end is opposite along the second direction, and the second direction is perpendicular with the first direction or each other has the angle of clamping, and the third direction is perpendicular with the first direction, the second direction all. Adopt above -mentioned technical scheme, can improve the problem that traditional relay contact part occupies big space.

The utility model discloses a pin module group for assembling PCB terminals. The pin module group comprises a terminal material belt flow channel and a terminal material belt feeding mechanism which are fixed on a workbench, and a terminal pin module group which is fixed on a pin module group support frame and is in linkage connection with the terminal material belt feeding mechanism. The terminal contact pin module comprises a contact pin mounting box fixed on the contact pin module supporting frame, and a contact pin clamping driving mechanism, a contact pin pushing-in driving mechanism and a contact pin executing mechanism which are arranged on the contact pin mounting box; the contact pin clamping driving mechanism is in linkage connection with the contact pin executing mechanism and clamps the terminal on the terminal material belt; the contact pin push-in driving mechanism is in linkage connection with the contact pin execution mechanism, and the terminal on the terminal material belt is cut and then inserted into the PCB. According to the scheme, the PCB terminal assembly structure has the advantages of being simple in structure, reliable in assembly and the like, and has very high practical value and popularization value in the technical field of PCB terminal assembly.

The utility model relates to a padlock device of an electric operating mechanism, which comprises a mechanism frame, a shell and a padlock component, the padlock component comprises a padlock sheet, a buffer component, a microswitch, a manual and automatic sliding plate and a manual and automatic push block, and the padlock sheet is provided with a limit block matched with the manual and automatic sliding plate. The limiting block acts along with the padlock piece and abuts against the manual and automatic sliding plate, limiting matching of the manual and automatic sliding plate and the limiting block is formed, the buffering assembly comprises a buffering rod movably arranged on the limiting block of the padlock piece and a spring arranged between the buffering rod and the limiting block, and the buffering rod acts along with the padlock piece and triggers the microswitch. And connection or disconnection of the microswitch is realized. The utility model has the advantages of simple structure, stable and reliable performance, convenient assembly, safety and reliability.

The invention relates to a trolley type circuit breaker emergency opening and closing remote control device, which comprises a body, a remote controller and a high-voltage switch cabinet. The high-voltage switch cabinet is arranged on the left side of the body. The body comprises a base, a workbench and an actuator. A switch trolley is arranged above the actuator. An outer frame is arranged on the outer periphery of the switch trolley. Springs are arranged on both the front and rear sides of the inner side of the outer frame. Fixed brackets are arranged on both the left and right sides above the switch trolley. An electric actuator is arranged in the middle between the fixed brackets on the left and right sides above the switch trolley. An outer sheath is arranged below the remote controller. A button is arranged in the middle of the front of the remote controller. A status light is arranged below the button. The invention has the advantages of accurate positioning, long-distance operation, flexible use, safety and reliability.

The application discloses an emergency power supply box with open-break power distribution terminals, and belongs to the technical field of emergency power supply boxes. The power supply box comprises four interval-parallel arranged power connection copper bar assemblies, which are divided into two groups and are respectively used for connecting zero lines and live lines of power supply cables and emergency cables; one grounding copper bar assembly is used for grounding connection with the power supply cables, the emergency cables and the power distribution terminals; a plurality of power distribution terminals are in sliding connection with the power connection copper bar assemblies, and are controlled by a control assembly to be respectively electrically connected with the power connection copper bar assemblies connected with the power supply cables or the emergency cables and simultaneously electrically connected with user cables; a box body is used for containing the above components, and a cable outlet is arranged at the bottom of the box body; and an emergency power supply interface is arranged outside the box body and is electrically connected with the emergency cables. The application replaces manual operation with mechanical automatic switching, and replaces scattered parts assembly with modular integration, so that the emergency power supply is fast, safe and standardized, and is especially suitable for power emergency protection of high-rise residential areas under extreme weather such as floods and typhoons.

A vertical wet tissue packaging machine. It belongs to the technical field of packaging machinery. It solves the problems of large size and low efficiency of the existing wet tissue packaging machine. It comprises a frame body, and further comprises: a film material unwinding device arranged on the frame body for unwinding the film material; a film material traction device arranged on the frame body for traction of the film material; a preheating device arranged on the frame body for preheating after film material feeding; a heat sealing device arranged on the frame body for heat sealing of the film material; a longitudinal cutting device arranged on the frame body for longitudinal cutting of the heat sealed product; a bag cutting device arranged on the frame body for transverse cutting of the heat sealed product; the preheating device, the heat sealing device, the longitudinal cutting device and the bag cutting device are vertically arranged on the frame body in sequence, and the heat sealing device is in sliding cooperation with the frame body; and a discharging device for collecting the product at the bag cutting device and discharging the product. The utility model has the advantages of simple structure, reliable action, small size, high production efficiency, long service life and the like.

The application relates to the field of piezoelectric pumps, in particular to a micro-nano piezoelectric air pump with air inlet and outlet on the same surface, which comprises a rack mechanism, an oil tank, an engine, a battery assembly and a silencer which are sequentially installed on a rack body, a moving piece located outside the rack body, a shell piece arranged outside the oil tank, a control piece arranged on the top of the shell piece and a tool box installed on one side of the shell piece. The piezoelectric ceramic prepared by adopting the micro-nano process is combined with the laser welding assembly mode instead of the adhesive assembly mode, so that the reliability risk of the aging of the adhesive layer and the decrease of the bonding force in the high-temperature, high-humidity and low-temperature environment is avoided, the air tightness and long-term consistency between the layers are ensured, and the durability of the product under the harsh working conditions such as vibration and mechanical impact is remarkably improved. Thirdly, the air inlet, the air outlet and the air exhaust are completed on the same structure surface, the flow path layout and the number of parts are simplified, and the assembly complexity and the cost are reduced.