3193results about "Bundling machine details" patented technology

The invention discloses a pallet protection corner automatic putting machine. The pallet protection corner automatic putting machine comprises a top protection corner putting combination machine and aside face protection corner putting combination machine; the top protection corner putting combination machine comprises a bottom circulation base and a pair of top protection corner single machines,the side face protection corner putting combination machine comprises a bottom fixed base and four side face protection corner single machines, the top face protection corner single machines are provided with electrical control parts, top protection corner containing grooves, limiting mechanisms, and top protection corner mounting claws, the top protection corner mounting claws grab protection corners in the top protection corner containing grooves, and put the protection corners on four edges of the top of a packaging box, each side face protection corner single machine comprises a second electrical control part, a side protection corner containing groove, and a side protection corner mounting claw, and the side protection corner mounting claws grab the protection corners in the side protection corner mounting grooves and put the protection corners on the four sides of the side face of the packaging box. The pallet protection corner automatic putting machine is reasonable in layout,smooth in operation, high in adaptation, automatic in full process, free of artificial duty and capable of greatly improving protection corner putting and threading packaging capacity.

The invention relates to the technical field of data processing, and discloses a binding force monitoring method and system of a binding machine. The method comprises the following steps: acquiring stress-deformation data through a high-frequency sampling array to form a time sequence characteristic matrix; reconstructing the signal by using adaptive filtering to obtain a key feature point set; constructing a prediction engine by using a deep tensor network based on the feature point set; using a prediction engine to identify waveform abnormity to obtain a deviation characteristic spectrum; generating a compensation strategy graph through a hybrid decision-making system according to the characteristic spectrum; and obtaining a steady-state control scheme through a parameter self-correction algorithm according to the strategy graph. According to the high-frequency binding force monitoring method based on multi-sensor fusion and the self-adaptive control technology, accurate binding force control over different materials is achieved, and the working efficiency and binding quality of the binding machine are improved.

The invention discloses an automatic strapping machine for a cigarette case production line. The automatic strapping machine comprises a rack, a paperboard outlet unit, a strapping unit and a finished product outlet unit. The rack comprises a lower bracket, a positioning backup plate, an upper bracket and a middle plate; the lower support comprises a working platform, two guide grooves transversely formed in the left middle portion of the working platform and a bundling opening formed in the right middle portion of the working platform. The positioning backup plate is fixed to the working platform and located on the front sides of the two guide grooves in parallel. The upper support comprises a top plate and a middle plate which is hung below the top plate and located over the bundling opening. The paperboard outlet unit comprises a paperboard pressing mechanism and a paperboard feeding mechanism; the bundling unit comprises a coated paper placing mechanism, a coated paper feeding mechanism, a coated paper pulling mechanism, a coated paper pressing mechanism, a coated paper cutting mechanism, a paperboard lifting mechanism, a coated paper bending mechanism and a coated paper hot-bonding mechanism; the finished product output unit comprises a finished product output table, a finished product receiving table and a finished product pushing mechanism. The strapping device is good in strapping quality and high in automation degree.

Disclosed are an inner mechanism system for a packing machine and a packing machine. The inner mechanism system for a packing machine comprises: a frame, on which a movable plate is movably arranged; a cutting tool device, which is mounted below the movable plate and configured to clamp, hot-melt and cut a packing strap; a push rod device, which is mounted on the frame and configured to push the packing strap to a position between the movable plate and the cutting tool device; and a drive device for driving the push rod device and the cutting tool device, wherein the push rod device comprises a push rod configured to push the packing strap, a swing arm movably mounted at one end of the push rod, a swing assembly for driving the swing arm to swing, and a pushing assembly for driving the push rod to move; and the drive device is provided with a drive main shaft for driving the swing assembly and the pushing assembly to operate. Due to the provision of the push rod, the packing strap can be directly pushed by means of the push rod to an object to be packed during operation, and the object is then packed. This eliminates the requirement for an additional strap guide frame structure in the entire packing machine, making the packing machine more suitable for objects of various sizes.

The invention relates to methods and devices for producing packaging units. Each of the packaging units has at least two articles which are held together by at least one strapping band and by at least one packaging blank. The method includes: providing the articles in a handling area of an application head; inserting a closed strapping band and a prepared packaging blank into the application head; feeding the application head to the articles, with the grouped articles being at least slightly compressed; positioning the strapping band; securing the packaging blank to the articles; opening the application head while simultaneously releasing and separating the at least one strapping band from the fixed position of the strapping band within the application head; releasing and separating the at least one packaging blank; and removing the application head from the strapped article grouping combined by a packaging blank.

The invention belongs to the technical field of workpiece sorting and stacking, and particularly relates to an automatic sorting and stacking production line and a control method thereof. According to the automatic sorting and stacking production line, automation of the whole process of workpieces from automatic feeding, sorting and conveying, recognition, sorting to stacking is achieved, manual operation is completely replaced, the problems that manual sorting is low in efficiency and high in labor intensity are solved, and the production efficiency is remarkably improved; moreover, the front and back and forward and reverse placement states of the workpieces can be accurately identified through the visual identification mechanism, and the workpieces in different states are accurately sorted to corresponding stacking stations by combining intelligent scheduling of the control module and matching with automatic sorting and stacking of the sorting and conveying structure and the carrying mechanism, so that scratches of electroplated layers and disordered packaging are effectively avoided; besides, the sorting conveying belt adopts intermittent constant-stroke operation and is matched with the workpiece positioning modules which are arranged at intervals, so that the feeding and discharging actions are strictly synchronous with the conveying rhythm, the carrying positioning precision is ensured, and continuous line production is realized.

The invention discloses an automatic packaging production line for aluminum profile stacking, and relates to the technical field of aluminum profile machining, the automatic packaging production line comprises a bottom plate, conveying frames are symmetrically mounted at the top end of the bottom plate, a stacking, stacking and bundling mechanism is arranged at the top end of one conveying frame, and the stacking, stacking and bundling mechanism comprises an extension frame; the aluminum profile stacking and bundling device is scientific and reasonable in structure and safe and convenient to use, the stacking and bundling mechanism is arranged, aluminum profiles are pushed through cooperation of the electric push rods, the pushing plate, an ejector rod and an extrusion plate, the aluminum profiles are conveyed through the conveying frame, and the aluminum profiles are conveyed through the conveying frame. And meanwhile, the supporting plate is matched with a baffle, the aluminum profile is extruded, a reset spring is shrunk, an extrusion plate can slide conveniently, the extrusion plate makes contact with a touch switch, an electric push rod is reset conveniently, and the follow-up aluminum profile can be pushed conveniently.

The invention relates to a device (1) for controlling a tensile stress of a packaging means in a packaging machine, comprising a clamping device (2) with two clamping elements (3, 3') arranged at a distance from one another, with the packaging means being guided therebetween, at least one actuator (7), and a control unit, wherein a position of at least one of the two clamping elements (3, 3') can be changed by the at least one actuator (7) based on a control signal from the control unit - while changing the distance between the two clamping elements (3, 3') - such that a clamping force acting on the packaging means with at least one of the two clamping elements (3, 3') can be controlled. Furthermore, a packaging machine for packaging a product with a packaging means and a method for controlling a tensile stress of a packaging means in a packaging machine are specified.

The utility model discloses a novel box support opening device which comprises a machine frame, a conveyor used for conveying a box support is horizontally installed on the machine frame, a box supporting mechanism and a hooking and pulling mechanism are installed on the portion, at the tail of the conveyor, of the machine frame, and the box supporting mechanism is used for outwards supporting the box support on the rubber band fixing side; the hooking mechanism is used for unfastening the rubber band on the box support; a box taking mechanism and a material storing mechanism are further arranged on the rack, and the material storing mechanism is used for storing the disassembled box supports; the box taking mechanism is installed between the material storage mechanism and the conveyor and used for conveying the box supports unfolded on the conveyor to the material storage mechanism. According to the device, after rubber bands on the plastic box supports are rapidly taken down, the box supports are flattened and collected in a centralized mode, and therefore the box opening efficiency of the box supports is remarkably improved.

The present disclosure provides a strapping tool with a scaling assembly including a die assembly and a camshaft. The camshaft includes a cam that engages a cam follower of the die assembly. The cam is shaped so rotation of the camshaft during a scaling cycle causes the cam to force the die assembly to pivot from a home position to a sealing position to form interlocking cuts in overlapping strap portions. Continued rotation of the cam results in the die assembly pivoting back to its home position during an energy-release phase and a return phase of the sealing cycle. During the energy-release phase. the shape of the cam enables the die assembly to pivot a relatively small amount as potential energy is released. During the return phase after this energy is released. the shape of the cam enables the die assembly to pivot a relatively large amount.

The utility model belongs to the technical field of logistics packaging, and particularly relates to a logistics packaging device which comprises workbenches, the workbenches are symmetrically arranged, a winding assembly is rotatably arranged between the two workbenches, the winding assembly comprises a winding part, the winding part is rotatably arranged between the two workbenches, and the winding part is provided with a winding groove. A supporting structure and a driving part are arranged between the workbench and one of the workbenches, the driving part is arranged on the bottom face of the workbench and used for driving the winding part to rotate, the fixing frame is fixedly arranged on the side face of the winding part and used for installing an adhesive tape, and the cutting structure is arranged on the bottom face, away from the installing frame, of the workbench and matched with the winding part. The cutter is used for cutting wound adhesive tape; wherein clamping structures are symmetrically arranged on the top surface of the workbench. When the logistics box is packaged, the adhesive tape is wound on the surface of the logistics box by rotating the winding part, and the situation that articles in the logistics box are damaged due to shaking of the logistics box in the packaging process can be avoided.

The invention provides a PET belt strapping machine and a strapping method, and belongs to the technical field of packaging machinery, the strapping machine comprises goods to be packaged, a belt track and a machine core, the machine core comprises a rack assembly, a tightening mechanism, a material belt feeding track, a high pull wheel assembly, a belt conveying wheel assembly, a cam driving device, a cam transmission assembly, an in-place detection mechanism, a friction servo motor and a PLC control system; the lacing mechanism is rotationally connected with the rack assembly, the material belt feeding rail penetrates through the lacing mechanism and is located at the top of the high pull wheel assembly, the belt conveying wheel assembly is located below the high pull wheel assembly, the cam driving device is located on the right side of the rack assembly and connected with the rack assembly, and the cam transmission assembly is located in the rack assembly. The cam transmission assembly is connected with the cam driving device, and the in-place detection mechanism is connected with the rack assembly. The cam system is used as a main guide, multiple key actions such as pressing, tightening, cutting and welding are precisely coordinated, and the automation degree, stability and bundling quality of bundling operation are improved.

The invention discloses a metal coiled material hoop processing device and discloses a metal coiled material hoop processing method with the metal coiled material hoop processing device, the metal coiled material hoop processing device comprises a machine table, a steel hoop mechanism, a bearing table, a clamping mechanism and a six-axis manipulator, and through the degree of freedom of six axes, the metal coiled material hoop processing device can carry out hoop processing on the metal coiled material hoop. The clamping mechanism is used for clamping the steel hoop mechanism, the steel hoop mechanism is arranged on a steel coil on the supporting seat in a sleeving mode, the control mechanism is matched with the transverse moving mechanism, the steel coil is hooped by the steel hoop mechanism, full automation of hooping of the steel coil is achieved, and working efficiency is improved.

The invention relates to the technical field of carton stacking and packaging, in particular to a full-automatic carton classifying and stacking machine which comprises a feeding conveying belt, a first packaging machine, an adjusting mechanism, a transfer conveying belt, a second packaging machine and a discharging conveying belt which are connected end to end in sequence, the adjusting mechanism comprises a rack, a top plate is arranged at the top of the rack, and a moving seat is arranged on the top plate; a lifting seat capable of vertically lifting is arranged at the bottom of the moving seat, at least two pressing plates horizontally extending in the direction perpendicular to the bundling direction of the first packaging machine are slidably mounted on the lifting seat, a vertical shaft rod is arranged at the top of the moving seat, and the shaft rod is inserted into an arc-shaped groove formed in the top plate. According to the technical scheme, carton boxes are pressed through the pressing plate during bundling, first bundling is firmer, 90-degree reversing is conducted on the stacked carton boxes after bundling, the overall bundling effect is ensured, and the accuracy of cross-shaped bundling is achieved.

The utility model belongs to the technical field of packing tape packers, and particularly relates to a tape storage mechanism of a banding machine and the banding machine, which comprises a moving component, a detection roller, a detection support, a damping component and a trigger device, in the process that the moving assembly retreats the belt, the belt is firstly retreated, then the tightened belt drives the detection support and the belt disc of the belt storage mechanism to be switched from the locking state to the rotation state, and the scheme of retreating the belt and then storing the belt is achieved. When the detection support moves, the trigger device indirectly or directly controls the tape reel to release the tape. According to the design, the tightening degree of the belt in the packaging process is controlled by the damping component, and the whole belt withdrawing structure is simplified; and the lacing force of the belt can be conveniently adjusted as required, so that the universality and the use convenience of the lacing machine are improved.

The utility model relates to the technical field of sword penetrating type packing machine equipment, and provides a sword penetrating type packing machine anti-collision mechanism which comprises a machine body and a sword penetrating frame arranged on the side of the machine body and used for a sword penetrating body to slide, a pair of connecting rod mechanisms are symmetrically arranged on the two sides of the front end of the sword penetrating body, and the sword penetrating body is rotationally connected with an anti-collision plate through the connecting rod mechanisms. One end of the upper side connecting rod mechanism is rotationally connected with the upper side wall of the sword penetrating body, one end of the lower side connecting rod mechanism is arranged on the lower side wall of the sword penetrating body in a sliding mode, the anti-collision plate is pressed, the upper side connecting rod mechanism deflects, and the end of the lower side connecting rod mechanism moves along the sword penetrating body. When the anti-collision plate makes contact with an obstacle and is pressed, the end of the lower side connecting rod mechanism moves along the sword penetrating body, the anti-collision plate is driven to be tightly attached to the lower portion of the end of the sword penetrating body to move, the track of downward movement of the anti-collision plate is greatly reduced, the situation that the anti-collision plate collides with a conveying device at the bottom when the anti-collision plate is folded is avoided, and the practicability of the anti-collision mechanism is greatly improved.

A tool for tensioning and severing a cable tie comprising, inter alia, a reel magazine assembly, configured to retainingly receive at least one cable strap reel and provide for a spring-biased rotation of said at least one cable strap reel about a cable strap reel center axis, wherein said spring-biased rotation is directed so as to wind up a cable tie strap coiled up onto said cable strap reel; a feeder guide mechanism, provided within said barrel portion, configured to guidingly receive an end portion of said cable tie strap of said cable strap reel and move said cable tie strap from said cable strap reel through said barrel portion towards said distal housing end portion, but prevent movement of said cable tie strap back towards said cable strap reel; a locking heads magazine assembly, configured to store a plurality of locking heads and supply one locking head at the time for use with said cable tie strap, and a blade guard, operably coupled between said cut-off mechanism and said locking heads magazine assembly, configured to receive and move said locking head from said locking heads magazine assembly into a loading position, ready for engagement with said cable tie strap.

The utility model belongs to the field of packing machines, and particularly relates to a cutter device for a packing machine, a machine core system and the packing machine. The cutter device comprises a moving plate movably arranged on the rack; the clamping mechanism is used for clamping the packing belt; the cutting mechanism is used for cutting the packing belt; the pressing mechanism is used for pressing the packing belt onto the moving plate; the fusing mechanism is used for performing hot melting and pressing on the packing belt cut by the cutting mechanism; the driving mechanism is provided with a driving main shaft for driving the clamping mechanism, the cutting mechanism, the pressing mechanism and the fusing mechanism to work; wherein the clamping mechanism, the cutting mechanism, the pressing mechanism and the fusing mechanism are all arranged below the moving plate. According to the utility model, the movable moving plate is directly arranged on the rack, and the plurality of functional cutter mechanisms are arranged below the moving plate, so that the packing belt can be directly pressed, hot-melted and cut off between the moving plate and the functional cutter mechanisms, which is very convenient.

The invention provides an efficient cleaning, root-removing, yellow-leaf-removing and accurate weighing and packaging machine for leaf vegetables. The efficient cleaning, root-removing, yellow-leaf-removing and accurate weighing and packaging machine comprises a root-removing and yellow-leaf-removing module, a leaf vegetable cleaning module, a leaf vegetable weighing module and a leaf vegetable packaging module. The root and yellow leaf removing module fixes leafy vegetables through a gripper and is matched with a cutter to remove roots and yellow leaves, and a motor drives a conveyor belt to convey; the cleaning module flushes leafy vegetables through a water spraying pipe, and a motor drives a conveyor belt to convey; the weighing module is metered by a gravity sensor, and leaf vegetables are transferred by a cylinder push plate after reaching the standard; and the packaging module is used for bundling through a packaging hook, clamping through a ribbon twisting device and cutting excess materials through a ribbon cutter. The full-process automatic processing of the leaf vegetables is realized, the problems of low manual efficiency and tedious equipment connection in the prior art are solved, and the large-scale production requirements of the leaf vegetables are met.

The present disclosure provides a strapping tool with a motor that is housed within a housing of the strapping tool and that drives a drive gear that is drivingly engaged with a driven gear. The driven gear is operably connected to a tensioning assembly to drive a tension wheel of the tensioning assembly to tension strap sandwiched between the tension wheel and a tension plate on a support of the strapping wheel. The tensioning assembly is pivotably mounted to the support to enable the operator to pivot the tension wheel away from the tension plate to make room for the strap (or remove the strap). The motor is movable relative to the housing and the tensioning assembly such that, as the tensioning assembly pivots relative to the support, the motor moves relative to the housing and the tensioning assembly so the drive gear maintains driving engagement with the driven gear.

The invention relates to the technical field of balers, in particular to a baler device linkage mechanism with a swing rope, which comprises a case, a rope, a plurality of stringing groove frames which are longitudinally arranged at equal intervals and are fixed in the front end and the rear end of the case, and a baled material block, a material block being baled and a material block to be baled which are conveyed in the case, a linkage rope binding mechanism is arranged on the machine box and used for controlling a rope to conduct packing and rope binding on the material blocks being packed. The rope fishing assembly comprises a frame fixed to the front end of the machine box, balance rods are fixed to the upper end and the lower end in the frame, and a sliding seat is arranged in the frame and slidably connected with the frame through the balance rods. Through cooperative linkage among the rope fishing assembly, the rope hooking assembly and the rope shearing assembly, automatic processing of material block packaging through the rope is achieved, the steps of manual operation are greatly reduced in the automatic rope fishing, rope hooking and rope shearing processes, and therefore the efficiency of the whole packaging process is improved.

The present invention relates to the technical field of yarn binding machines, specifically a novel pot-type yarn binding machine routing structure, the yarn binding machine includes a yarn binding ball and a yarn binding pot, a yarn routing path for guiding the yarn to enter is provided along the edge of the yarn binding pot, the yarn routing path includes at least one automatic deflection guide wheel group, the yarn outlet of the yarn binding ball is connected to the automatic deflection guide wheel group, the automatic deflection guide wheel group can realize left and right adaptive deflection in the axial direction; at least one first directional guide wheel group and at least one second directional guide wheel group, the first directional guide wheel group and the second directional guide wheel group are fixed at fixed angles and equidistantly around the yarn binding pot; the yarn of the yarn binding ball passes through the automatic deflection guide wheel group, the first directional guide wheel group and the second directional guide wheel group in sequence. Compared with the prior art, the advantages of the present invention are: slowing down the tension fluctuation of the yarn itself when it is reciprocating left and right, thereby reducing the peak value of the yarn binding tension, and using guide wheel rolling instead of direct friction to minimize the yarn binding tension of the output yarn.

The utility model discloses an electric belt tightening machine which comprises a shell, a cut-off mechanism, a tightening mechanism and a speed control switch, the cut-off mechanism, the tightening mechanism and the speed control switch are installed on the shell, the cut-off mechanism comprises a cut-off tool apron, a cut-off tool and a cut-off tool bar, and the tightening mechanism comprises a tightening motor and a rotating shaft; the speed regulation switch is connected with the controller, the rotating speed of the tightening motor is controlled through the speed regulation switch, after binding is conducted through a binding belt, the tail of the binding belt firstly penetrates into the binding belt channel in the front of the cutting tool apron, penetrates through the cutting opening and then penetrates out of the binding belt channel in the rear to enter the rotating shaft, and the tightening motor controls the rotating shaft to rotate to pull the binding belt to penetrate through the cutting tool apron and tighten the binding belt. The cut-off tool is driven to rotate by rotating the cut-off tool bar, and the cut-off tool cuts off the tail of the ribbon in the cut-off opening. According to the utility model, the cable tie can be intelligently tightened, meanwhile, the shearing operation is quickly performed, the machine has multiple purposes, the operation time is shortened, and the working efficiency is improved.

The corrugated carton packaging machine comprises a packaging table, a conveying frame is fixed to one side of the packaging table, a plurality of electric conveying rollers are arranged on the end face of the conveying frame and the end face of the packaging table at equal intervals, a packaging device is arranged at the top end of the packaging table, and a groove is formed in the side, close to the conveying frame, of the top end of the packaging table; a position sensor is arranged on the other side of the top end of the packaging table. Through the action of a position sensor, the position of a packing rope of the carton is determined, through cooperation with the action of a lifting and rotating mechanism, the #-shaped bundling mode of the carton is achieved, compared with existing parallel bundling, the compactness of the carton after bundling is improved, loosening is prevented, and by means of the adhesion effect of an adhesion roller, the bundling efficiency of the carton is improved. And the self-protection assembly and the dust collection assembly are matched, so that the dust prevention and removal effect on the adhesion roller is achieved, the adhesion of the surface of the adhesion roller is ensured, and the service life of the packaging machine is prolonged.

The stacking device comprises a carton temporary storage mechanism arranged at a discharging port of carton plastic nail equipment, a beating and aligning mechanism and a pushing mechanism are arranged on the feeding side of the carton temporary storage mechanism, and a floating pressing mechanism is arranged above the carton temporary storage mechanism. A conveying mechanism and a blocking mechanism are arranged on the discharging side of the carton temporary storage mechanism, and the blocking mechanism is used for blocking or connecting a conveying channel between the carton temporary storage mechanism and the conveying mechanism. The beating and aligning mechanism is used for beating and aligning the side edges of the to-be-packaged cartons stacked on the carton temporary storage mechanism; the pushing mechanism is used for pushing the to-be-packaged cartons which are stacked on the carton temporary storage mechanism and reach the preset number into the conveying mechanism. The floating pressing mechanism is used for applying certain pressure to the carton to be packaged; the conveying mechanism is used for conveying the to-be-packaged cartons subjected to stack dividing to the packaging device. The labor intensity is reduced, and the production efficiency is improved.

The invention discloses wire harness winding and binding equipment which comprises a rack, a rotating module, a wire drawing module, a binding belt module and a clamping jaw module, wherein the rotating module, the wire drawing module, the binding belt module and the clamping jaw module are arranged on the rack. The rotating module comprises a connector clamping mechanism, a wire harness tensioning mechanism and a rotating mechanism, and can fix a wire harness end connector, support a wire harness to form a ring shape and drive the wire harness to rotate to achieve winding. The wire drawing module guides the wire harness to be uniformly wound on the wire harness tensioning mechanism; the clamping jaw module can take out the annular wire harness from the rotating module and send the annular wire harness to the binding belt module to complete binding belt binding. According to the equipment, through cooperation of all the modules, full-process automation of wire harness winding, uniform wire arrangement, transferring and binding is achieved, the problems that manual or semi-automatic equipment is low in efficiency, poor in winding consistency, unstable in binding and the like are solved, the production efficiency and the product quality are improved, and it is ensured that winding is uniform, the ends are fixed reliably, and binding is firm.

The utility model relates to the technical field of ceramic tile packaging equipment, and particularly discloses automatic ceramic tile binding equipment. Comprising an overturning machine used for stacking ceramic tiles, a wood support arranged on one side of the overturning machine and used for bearing the ceramic tiles, a carrying device arranged on one side of the overturning machine and used for grabbing and clamping the ceramic tiles, and a binding device arranged on one side of the overturning machine and used for binding ribbons for the ceramic tiles. The binding device comprises a machine frame arranged on one side of the overturning machine, a first module arranged on the machine frame and used for laying binding belts for the ceramic tiles and a second module used for tightening and dividing the binding belts, and the problems that the traditional ceramic tile packaging process is generally completed through semi-automatic assembly line work, repeated ceramic tile binding actions need to be completed by workers at high frequency, and the efficiency is high are solved. And the labor intensity of workers is high.

A strapping tool configured to tension metal strap around a load and, after tensioning, attach overlapping portions of the strap to one another by cutting notches into a seal element positioned around the overlapping portions of the strap and into the overlapping portions of the strap themselves.

The application discloses an inertial centrifugal force control safe belt tightening device, relates to the technical field of tightener, and comprises a handle assembly, a base assembly and a long belt, wherein the handle assembly comprises a handle and a ratchet wheel, the base assembly comprises a base, the handle and the base are pivotally connected through a volute spring shaft, one end of the volute spring shaft is provided with a centrifugal brake assembly, and the centrifugal brake assembly comprises a brake disc, a brake cover, a brake pawl and a return compression spring. The application has the advantages of reasonable design, brake function, prevention of long belt swinging and injury of operators, personal safety of operators, handle limiting function, obvious improvement of smoothness and service life of the tightening device and excellent practicability.