104results about "Wire rings" patented technology

The utility model discloses a clamp spring machining bending device which comprises an operation table, a supporting assembly is arranged in the middle of the upper end face of the operation table, and the supporting assembly comprises a fixing block, an arc-shaped plate, an adjusting air cylinder and a supporting block. Through the design of the supporting assembly, the arc-shaped plates on the two sides of the middle fixing block can be effectively driven to be tightened or opened through telescopic adjustment of an adjusting air cylinder, so that the bending size needing to be machined can be adjusted according to the size of a snap spring, and a good limiting effect and a good supporting effect can be achieved in the using process; therefore, the clamp spring is effectively prevented from shaking; through the design of the grooves, multiple sets of clamp springs can be machined at the same time, and therefore the machining efficiency of the device is improved; through the design of a first sliding block, a second sliding block, a lead screw, a motor, a first pressing block and a second pressing block, the distance between the first pressing block and the second pressing block can be flexibly adjusted, snap springs of different sizes can be machined and bent, and therefore the flexibility and practicability of the device are improved.

A removal system for a pull wire assembly machine includes a transport device having an actuator operably coupled to a holding member configured to hold and moved the assembled pull wire assembly from an assembly zone to a removal zone. The holding member releases the pull wire assembly into a sorting tray assembly configured to sort the pull wire assemblies, such as based on a quality assessment of the laser weld joint between the pull wire and the pull ring of the assembly. The sorting tray assembly deposits the pull wire assemblies into a storage tray assembly configured to store the sorted assemblies until gathered by an operator.

The invention relates to the technical field of C-shaped clamping ring manufacturing, in particular to a C-shaped clamping ring forming device with a flatness correcting function. Comprising a spring forming device, the spring forming device comprises a steel wire guiding device, the steel wire guiding device comprises a feeding guide groove and a pair of spiral winding guide gauges, shaping guide grooves are formed in the spiral winding guide gauges, a steel wire material sequentially penetrates through the feeding guide groove and the pair of shaping guide grooves in the feeding process, and the shaping guide grooves are used for guiding the steel wire material to be in a spiral winding shape; the cutter device is used for cutting off a C-shaped material at the front part of the spirally wound steel wire material; the steel wire material passes through the material ejecting gauge after passing through the material cutting position of the cutter device, and the material ejecting gauge is used for supporting one side of the C-shaped material in the axial direction of spiral winding of the steel wire material; and the steel wire material passes through the limiting gauge after passing through the material jacking gauge, and the limiting gauge abuts against the radial outer side of the C-shaped material. And the flatness of the C-shaped clamping ring can be corrected before cutting.

A ring holder for a pull wire assembly machine configured to assemble a pull wire to a pull ring is provided. The ring holder includes a ring mandrel having a first mandrel member and a second mandrel member meeting at a seam. The ring mandrel includes a ring mount at a front of the ring mandrel configured to hold the pull ring. The first and second mandrel members are movable relative to each other to expand a size of the ring mount to hold the pull ring on the ring mount and the first and second mandrel members being movable relative to each other to reduce a size of the ring mount to release the pull ring from the ring mount.

The present invention belongs to the field of piston ring processing, and discloses a two-pass ring processing technology, including the following steps: Step 1: winding a wire through a winding machine; Step 2: processing the wire obtained in step 1 through a piston ring opening mechanism to obtain a piston ring; Step 3: chrome-plating the outer side of the piston ring; the wire in step 1 includes an upper plane, a lower plane, an outer side surface, and an inner side surface; wherein the outer side surface is pre-processed to form a slope surface with a preset taper; the position where the inner side surface and the outer side surface intersect with the upper plane and the lower slope surface is pre-processed into a rounded transition surface. When purchasing raw material-wires, this process requires the manufacturer to produce according to preset standards to obtain wires of preset shapes, and then directly round and subsequently process the wires, so as to obtain piston rings with high precision and a smooth and flat plated surface. The chrome-plated layer is not easy to crack, which can significantly improve the product qualification rate.

The invention relates to the technical field of metal bending and shearing, and particularly discloses a tin ring forming device with a cutting structure, which comprises a bearing plate, a supporting plate is fixedly mounted on the side wall of the bearing plate, two vertical supporting plates are arranged at the top end of the supporting plate, and a transverse supporting plate is fixedly mounted between the two vertical supporting plates. Two L-shaped blocks are arranged at the bottom end of the transverse supporting plate, a limiting cylinder is fixedly installed between the two L-shaped blocks, a reducer pipe is installed on the inner wall of the limiting cylinder, a tungsten steel needle is installed in the reducer pipe in a close fit mode, and a lifting piece used for assisting in replacing the tungsten steel needle is arranged in the reducer pipe. The hollow rotating platform is installed at the bottom end of the supporting plate, an annular plate is fixedly installed at the bottom end of a rotating table of the hollow rotating platform, and two vertical connecting blocks are installed at the bottom end of the annular plate. The tin ring forming and material returning integrated machine has the tin ring forming and material returning integrated function, the working procedures are reduced, the production efficiency is improved, and it is guaranteed that the tin ring opening position is neat.

The invention discloses a ring rib double-bending mechanism and a steel bar trolley, and relates to the technical field of tunnel construction mechanical equipment. The ring rib double-bending mechanism comprises two ring rib bending bodies arranged on the left side and the right side of the trolley, one transversely-installed ring rib bending body transversely bends a reinforcing steel bar, the transversely-bent reinforcing steel bar is fed into the other vertically-installed ring rib bending body to vertically bend the reinforcing steel bar, and each ring rib bending body comprises a base. A leading-in plate is arranged at one end of the base, a leading-out plate is arranged at the other end of the base, the leading-in plate is provided with a first driving wheel abutting against the outer side of a reinforcing steel bar and a first driven wheel abutting against the inner side of the reinforcing steel bar, the leading-out plate is provided with a second driven wheel abutting against the outer side of the reinforcing steel bar and a second driving wheel abutting against the inner side of the reinforcing steel bar, and the base is provided with paired wheels. The steel bar trolley comprises a ring bar double-bending mechanism. According to the method, manufacturing of the ring ribs is achieved on the tunnel site, the ring rib transportation links are reduced, the transportation cost and risk are reduced, and the efficient, convenient and accurate requirements of modern building construction are met.

The invention relates to welding ring machining equipment which comprises a welding wire feeding mechanism, a welding wire traction and feeding mechanism, a welding wire cutting mechanism, a U-shaped ring winding mechanism, a welding wire left ring winding mechanism, a welding wire right ring winding mechanism and a welding ring discharging mechanism. The U-shaped winding mechanism is provided with a central shaft, a welding wire U-shaped stamping part and a first driving device, the welding wire U-shaped stamping part is provided with a semicircular first shaping groove, and the first driving device is used for driving the welding wire U-shaped stamping part to move towards the central shaft so as to shape a cut welding wire into a U shape by taking the central shaft as a support; the welding wire left ring winding mechanism is used for shaping and closing up the left end of an opening of the U-shaped welding wire, and the welding wire right ring winding mechanism is used for shaping and closing up the right end of the opening of the U-shaped welding wire; the welding ring discharging mechanism is used for discharging the machined and formed welding rings from the center shaft. The equipment can automatically and continuously process the welding wire into the welding ring, so that a manual operation mode of manually winding the welding ring is replaced, and various technical problems existing in the manual operation mode are solved.

A cast-in-place pile reinforcement cage inner supporting ring machining device comprises a machining platform and a rotating support installed on the upper portion of the machining platform, a rotating shaft is arranged in the center of the table top of the machining platform, and a driver for driving the rotating shaft to rotate is arranged in the machining platform. The rotating support comprises a base and a plurality of vertical supporting rods which are evenly distributed on the edge portion of the surface of the base in a round shape, the center of the base is fixedly connected with the rotating shaft, a limiting rod corresponding to the vertical supporting rods is arranged on the edge portion of the base, and clamping gaps are formed between the limiting rod and the vertical supporting rods. Guide rods are vertically arranged at the corners of the surface of the machining platform. According to the device, the rotating support which is integrally circular can clamp the end of a steel bar to machine the steel bar into a circle in a winding mode, the whole machining mode does not need personnel assistance after the steel bar is clamped, the operation process of machining the inner supporting ring into the circle can be automatically completed, and the device has high machining efficiency and is suitable for popularization and application. And the problem that the machining quality is interfered by artificial factors is avoided, and the machining quality of the inner supporting ring is guaranteed.

The present invention belongs to the technical field of wire rope bending, and specifically is a heavy-duty wire rope bending processing equipment for vibration isolators, including a splicing component, wherein the left and right sides of the splicing component are symmetrically provided with bending components, and the inside of the bending component is evenly provided with calendered rope rings, and the calendered rope ring is a closed ring formed by a section of thicker wire rope after calendering and bending, and the front and rear sides of the bending component are symmetrically provided with internal pressure equipment. The device can set a corresponding number of thick wire ropes according to the grooves reserved by the arc-shaped pressure plate, and then uniformly press them into calendered rope rings, and when the ends of the two sides of the rope rings have not yet shifted, the combined clamping plates are clamped at the ends of the rope rings to ensure that all the rope rings can be uniformly docked with the grooves of the clamping plates, and when the calendered rope rings pass through the clamping plates, there is no need to perform fine-tuning work, thereby achieving one-step splicing work, and then uniformly welding to achieve the effect of rapid processing, thereby greatly improving production efficiency.

The utility model discloses a detachable steel wire ring disc which comprises a core disc, a plurality of fan-shaped fixing discs are fixedly connected to the circumferential face of the core disc, the fixing discs are evenly distributed on the circumferential face of the core disc, and a plurality of bolts are connected to the fixing discs in a threaded mode. By arranging the core disc, the fixed disc, the bolts, the adjusting grooves, the expansion disc and the connecting blocks, the steel wire ring disc is divided into the fixed disc and the expansion disc, and modular design is adopted, so that the steel wire ring disc can be flexibly adjusted, the production requirements of various tire specifications are met, the flexibility of equipment is improved, the expansion disc and the fixed disc are fixed through the bolts, and the production efficiency is improved. The device can be quickly mounted and dismounted, improves the production efficiency, and effectively reduces the equipment investment cost and maintenance cost of enterprises on different specifications of production due to the fact that the device can be compatible with the production of various specifications of steel wire rings.

The invention discloses a hot forming method of a spring steel wire raceway main bearing for a CT machine. The hot forming method comprises the following steps that firstly, a steel wire is cut and rolled into a circular ring through a crimping machine, snap fasteners are machined at the two ends, fixing and warping and roundness adjusting are conducted, and a steel wire circular ring is formed; secondly, the steel wire ring is rotationally heated to austenite through an induction heating device, quenching liquid is sprayed, and the steel wire ring is cooled to the room temperature; thirdly, tempering is conducted after quenching, quenching liquid is sprayed, and cooling is conducted to the room temperature; 4, performing low-temperature heating to perform heat setting on the main bearing; and fifthly, the ring subjected to heat setting is subjected to raceway machining. According to the process, deformation is controlled through rotary induction heating and a clamping die curvature tool, oil quenching pollution is reduced, decarburization of the surface of a steel wire is avoided, and the problem of large forming deformation of the raceway main bearing is solved.

A ring holder (306) for a pull wire assembly machine (100) configured to assemble a pull wire (20) to a pull ring (30) is provided. The ring holder includes a ring mandrel (380) having a first mandrel member (390) and a second mandrel (392) member meeting at a seam (391). The ring mandrel includes a ring mount (382) at a front of the ring mandrel configured to hold the pull ring. The first and second mandrel members are movable relative to each other to expand a size of the ring mount to hold the pull ring on the ring mount and the first and second mandrel members being movable relative to each other to reduce a size of the ring mount to release the pull ring from the ring mount.

The present invention discloses a tire wire ring head storage and conveying system, comprising a wire ring head machine, a wire ring conveying device and a robot winding device, a rotating ring support device is provided between the wire ring head machine and the input front end of the wire ring conveying device, the robot winding device is provided at the output rear end of the wire ring conveying device, a wire ring storage and a TDA station are provided at the front and rear of the left and right sides of the robot winding device, respectively, and the rotating ring support device is provided at the left or right side of the wire ring winding machine; the rotating ring support alternately transfers the wound wire ring to the wire ring head machine and transfers the head wire ring to the wire ring conveying device; the robot winding device grabs the head wire ring on the wire ring conveying device to the TDA station or to the wire ring storage. The present invention adopts the wire ring head machine and is equipped with relevant devices to establish the connection between the wire ring winding machine and the TDA production station, thereby realizing the efficient automation of the wire ring production operation.

The utility model discloses a steel bar reinforcing ring rapid manufacturing device which comprises a protective ring, a bearing is arranged in the center of the protective ring, a plurality of reinforcing steel plates are arranged between the bearing and the inner wall of the protective ring, the two ends of each reinforcing steel plate are fixed to the outer wall of the bearing and the inner wall of the protective ring respectively, and a connecting shaft is arranged in an inner ring of the bearing. The end, extending out of the bearing, of the connecting shaft is connected with a supporting rod, the protective ring is located between the supporting rods, the supporting rods are provided with idler wheels capable of rotating around the axes of the idler wheels, and the idler wheels are located outside the protective ring and close to the outer wall of the protective ring. According to the scheme, reinforcing steel bars needing to be bent can penetrate through the space between the protective ring and the rolling wheel and are attached to the protective ring, the reinforcing steel bars form an annular structure along with rotation of the protective ring and the rolling wheel, the overall construction efficiency is high, meanwhile, small parts on the protective ring can be utilized, so that the hoop is wound and does not disengage from a disc, and the hook length and the bending angle are effectively controlled.

The invention discloses an annular steel bar bending and welding platform and an operation method thereof.The annular steel bar bending and welding platform comprises a supporting table, an inner positioning nail, a surrounding pressing mechanism and a locking mechanism, the annular inner positioning nail is arranged on the supporting table, and the surrounding pressing mechanism is installed on the supporting table, annularly walks around the outer side of the inner positioning nail and is used for bending a steel bar along the annular inner positioning nail; the multiple locking mechanisms are arranged on the supporting table at intervals, annularly arranged along the inner sides of the inner positioning nails and used for locking the steel bars on the supporting table. The surrounding pressing mechanism is used for positioning the reinforcing steel bar at the initial position, then the reinforcing steel bar is annularly bent around the annular inner positioning nail to form a ring shape, the locking mechanism is used for locking, automatic annular winding is achieved, after positioning is completed, welding of the lap joint of the reinforcing steel bar is conveniently and rapidly achieved, the welding quality and the manufacturing quality of the annular reinforcing steel bar are improved, and the production efficiency is improved. The size error of the annular steel bar is reduced, electric winding is achieved, time and labor are saved, manual winding is not needed, precision is better, and safety is higher.

The utility model relates to the technical field of rebar winding machines, in particular to a rebar winding machine which is in transmission contact with a plurality of portions of a reinforcement cage, so that deformation of the reinforcement cage is avoided, and welding quality of the reinforcement cage is improved. Comprising a bottom plate, a first roller shaft and a second roller shaft. The conveying device comprises a bottom plate and further comprises a plurality of driving shafts, a plurality of universal joints, a plurality of inner supporting rods, a plurality of outer supporting rods, a plurality of push rods, a driving mechanism and a conveying mechanism, the driving mechanism is installed on the bottom plate, the conveying mechanism is slidably installed on the bottom plate, the driving mechanism drives the driving shafts to rotate, and the driving shafts are connected through the universal joints. Storage grooves are formed in the opposite outer walls of the multiple driving shafts, inner supporting rods are hinged into the storage grooves of the multiple driving shafts, the inner ends of the multiple outer supporting rods are installed on the multiple inner supporting rods correspondingly, clamping grooves are formed in the outer ends of the multiple outer supporting rods correspondingly, and one ends of the multiple push rods are rotationally connected with the bottoms of the storage grooves of the multiple driving shafts correspondingly. The other ends of the push rods are rotationally connected with the inner supporting rods correspondingly.

The invention discloses a wire coiling machine and a wire coiling method thereof, and relates to the field of coiling machines, the wire coiling machine comprises a box body, a supporting wheel is installed on the box body, and a bending wheel and an auxiliary wheel are connected to the box body in a sliding mode; an arc-shaped groove is formed in the box body in a sliding mode, a jacking assembly is connected to the arc-shaped groove in a sliding mode, a positioning wheel is connected to the box body in a sliding mode, and the jacking assembly and the positioning wheel are each rotationally connected with a telescopic assembly; a straightening assembly is installed on the box body, and a metal wire is connected to the straightening assembly in a sliding mode. The center shaft is used for positioning the circle center of the wire ring, and the free ends of the two telescopic assemblies are jointly and rotationally connected to the center shaft; an inclined plate is slidably connected to the box body, and a guide block is arranged on the inclined plate; the circular position of the wire coil can be quickly positioned, the smoothness of the notch of the wire coil and the perpendicularity of the cutting section and the wire can be ensured, the wire coil can be automatically arranged and collected, the supporting point position of the wire coil is increased, and the machining precision is ensured.

The utility model relates to the technical field of tire steel wire ring head binding machines, in particular to an aircraft tire steel wire ring head binding machine which is characterized in that a fixing device and a head binding device are lifted through a lifting device, a power source is provided for a limiting device through a power device, and a tire steel wire ring is limited through the limiting device. The tire bead ring is fixed through the fixing device, and the head tying device plays a role in head tying machining. Comprising a console; the device further comprises a lifting device, a power device, a limiting device, a fixing device and a head binding device, the lifting device and the power device are both installed on the operation table, the limiting device is installed on the power device, and the fixing device and the head binding device are both installed on the lifting device. The lifting device plays a role in lifting, the power device provides a power source, the limiting device plays a role in limiting, the fixing device plays a role in fixing, and the head tying device plays a role in head tying machining.

The application discloses a hot forming method of a spring steel wire raceway main bearing for a CT machine, and comprises the following steps: step one: cutting a steel wire, winding the steel wire into a ring by using a coiling machine, machining a primary and secondary buckle at both ends, fixing and adjusting warping and roundness, and forming a steel wire ring; step two: rotating and heating the steel wire ring to austenite by using an induction heating device, and cooling to room temperature by spraying a quenching liquid; step three: tempering after quenching, and cooling to room temperature by spraying the quenching liquid again; step four: low-temperature heating for heat setting of the main bearing; and step five: raceway processing is conducted on the heat-set ring. The process controls deformation by rotating induction heating and clamping mold curvature tooling, reduces oil quenching pollution, avoids decarburization of the steel wire surface, and solves the problem of large forming deformation of the raceway main bearing.

The invention belongs to the technical field of book ring production equipment, and particularly relates to book ring integrated stamping production equipment which comprises a punching machine, a feeding mechanism, a reciprocating shearing mechanism, a stamping die mechanism and a power mechanism used for providing power are arranged on the punching machine, the feeding mechanism conveys raw material wires to the stamping die mechanism, and the reciprocating shearing mechanism is used for shearing the raw material wires to the stamping die mechanism. The stamping die mechanism is used for bending a raw material wire into an arc, the stamping die mechanism comprises a die body, a flattening column and a punching column, the flattening column and the punching column are arranged on the die body and have a reset function, the flattening column is used for flattening the arc-formed wire, and the punching column is used for punching the flattened wire. The reciprocating shearing mechanism is used for punching and cutting a processed wire, the power mechanism comprises an eccentric transmission mechanism, and the production procedures of forming, flattening, punching, punching, cutting and discharging are integrally finished through the matching of the power mechanism and the eccentric transmission mechanism, so that the production and processing efficiency of book rings is greatly improved.

The utility model belongs to the technical field of tire manufacturing, and discloses a steel wire winding device. In the wire winding process, a hook at the free end of a steel wire is hung on a ball head, a traction motor drives the ball head to drag the free end of the steel wire to move in the circumferential direction of a steel ring, a winding assembly drives a wire storage disc to move along an annular track, the annular track and the steel ring are buckled with each other, so that the steel wire is wound on the steel ring, and it is guaranteed that the tightness of the steel wire is uniform; the time and labor cost required by manual operation can be greatly reduced, and the production efficiency and the production quality are improved; in addition, the hook assembly is driven by the overturning assembly to overturn by the first preset angle so as to avoid the winding assembly, and therefore the smoothness and reliability of the steel wire winding process are guaranteed.

A ring retainer (306) for a stay wire assembly machine (100) configured to assemble a stay wire (20) to a pull ring (30) is provided. The ring retainer includes a ring mandrel (380) having a first mandrel member (390) and a second mandrel member (392) joined at a seam (391). The ring mandrel includes a ring mounting portion (382) at a front portion of the ring mandrel configured to retain the pull ring. The first mandrel member and the second mandrel member are movable relative to each other to expand the size of the ring mounting portion to hold the tab on the ring mounting portion, and the first mandrel member and the second mandrel member are movable relative to each other to reduce the size of the ring mounting portion to release the tab from the ring mounting portion.

The utility model provides a pair of hard wire winding pliers, which comprises a support base, one end of the support base is provided with an articulated shaft, the support base is provided with a fixed plier handle, a movable plier handle is hinged with the articulated shaft, a spring is arranged between the movable plier handle and the fixed plier handle, one end of the movable plier handle is provided with a sector gear, and the sector gear is meshed with a pinion. The pinion is rotationally installed on the supporting shaft, the supporting shaft is installed at the end, away from the hinge shaft, of the supporting base, a bending wheel is arranged at the upper end of the supporting shaft, a driving rod is arranged at the upper end of the pinion, and a winding gap is formed between the driving rod and the bending wheel. The hard wire winding clamp can be used for winding an exposed copper wire of a hard wire, and a ring nose which is accurate and meets the requirement can be quickly manufactured.

The utility model discloses a fan mesh enclosure steel wire looping forming machine, and relates to the technical field of looping forming machines, the fan mesh enclosure steel wire looping forming machine comprises a rack, the rack is connected with a looping mechanism, a ring receiving rod and at least two supporting rods, each supporting rod is slidably connected with a connecting rod, one end of the ring receiving rod is rotatably connected with the rack, and the other end of the ring receiving rod is slidably connected with the connecting rod. The connection portion of the ring receiving rod and the rack corresponds to the looping mechanism, each supporting rod is sleeved with a collecting piece, the connecting rod is provided with an installation groove used for clamping the other end of the ring receiving rod, and the connecting rod is connected with a fixing mechanism used for limiting the ring receiving rod to be separated from the installation groove. The connecting rod is moved in the direction close to the ring connecting rod, so that one end of the ring connecting rod is clamped into the mounting groove of the connecting rod, the fixing mechanism on the connecting rod limits the ring connecting rod to be separated from the mounting groove, the mounting efficiency of the ring connecting rod is improved, and the efficiency of replacing the ring connecting rod to another connecting rod is improved.

The invention belongs to the technical field of aeronautical part manufacturing, and relates to a manufacturing device and method for an aeronautical clamping ring. The wire feeding part is used for conveying rectangular steel wires, the production efficiency is improved, and manual operation errors are reduced. The sliding groove provides a stable guide forming channel for the rectangular steel wire, the contact face of the wide face of the rectangular steel wire and the support base is increased, and the problem of wide face friction caused by steel wire inclination in a traditional process is solved. And the rectangular steel wire is bent and formed by applying pressure to the rectangular steel wire through the mandrel. And the mandrel is rotationally connected with the bracket base, so that the mandrel is in sliding contact with the rectangular steel wire, the contact friction force is reduced, and the problem of extrusion deformation of the raw material steel wire is effectively reduced. The linear position adjusting part is used for adjusting the position of the support base in the first direction, and the forming radius of the clamping ring can be adjusted. And the discharge port mandrel is positioned between the wire feeding part and the bracket base. And the discharge port is used for limiting a steel wire output path and is matched with the mandrel to bend and form the rectangular steel wire.

The utility model relates to the technical field of pipe fitting rolling, in particular to a guide pipe frame shearing force piece rolling device which is characterized in that a plurality of fixed steel pipes are arranged on a rotating disc in the circumferential direction, guide kidney-shaped holes are formed in the sides, away from the center of the rotating disc, of the fixed steel pipes on the rotating disc, and the long axes of the guide kidney-shaped holes penetrate through the center of the rotating disc; adjusting steel pipes are arranged in the guiding kidney-shaped holes and connected with the fixing steel pipes through adjusting screws, the adjusting screws are screwed to drive the adjusting steel pipes to be close to or away from the fixing steel pipes, and all the adjusting steel pipes can be adjusted to be switched to manufacture shearing force pieces of different sizes. Therefore, the rolling device disclosed by the utility model can be used for manufacturing shearing force pieces with different sizes and is wide in adaptability.

The utility model provides a copper wire coiling machine, which belongs to the technical field of copper wire processing equipment, aims to solve the problem that the working efficiency of the coiling machine is affected due to the fact that the coiling machine needs to be shut down when an inclined rod is replaced in the prior art, and comprises a coiling machine main body, a control box, a cut-off cylinder, a coiling guide wheel, a collection fixing box, a coiling protection mechanism and a coiling collection mechanism, the control box is fixedly connected to the right end of the upper portion of the looping machine body. The cut-off air cylinder is fixedly connected to the left side of the front portion of the looping machine body. The looping guide wheels are rotationally connected to the front end of the looping machine body. The collecting and fixing box is fixedly connected to the front of the coiling machine body, and a sliding groove structure is arranged on the left side of the rear end of the collecting and fixing box; the looping protection mechanism is arranged above the front end of the looping machine main body; the coiling and collecting mechanism is arranged in the collecting and fixing box, the idle time of the coiling machine is shortened, the coiling efficiency of the copper wires is improved, and then the production efficiency of the copper wires is guaranteed.

The utility model discloses a circular hoop diameter adjusting device for building construction, and relates to the technical field of diameter adjusting devices. A circular hoop diameter adjusting device for building construction comprises a plurality of lead screws which are circumferentially distributed, and the multiple lead screws are in threaded connection with sliding blocks; the synchronous driving assembly is used for synchronously driving the lead screws to rotate synchronously; a limiting baffle is installed on the sliding block, and an operation distance is reserved between the limiting baffle and the front end of the sliding block. The synchronous driving assemblies such as the conical fluted disc and the bevel gear are driven by the motor to drive the screw rods to rotate synchronously, so that the sliding blocks mounted on the screw rods can synchronously change the positions between the sliding blocks and the circle center of the conical fluted disc, and the required diameter of a steel bar circle can be accurately adjusted; the grooves formed in the front ends of the sliding blocks can limit the steel bars and prevent the steel bars from slipping, and the cushion blocks with the same thickness are additionally arranged in the grooves, so that the depth of the grooves can be flexibly adjusted, and the steel bars are convenient to take and place.

The embodiment of the invention discloses a bending tool and a bending method, and the bending tool comprises a positioning plate which is provided with a first limiting ring and a second limiting ring; the diameter of the first limiting ring is smaller than that of the second limiting ring, and a space between the first limiting ring and the second limiting ring is used for fixing a workpiece to be machined; the first limiting piece is provided with an opening corresponding to an opening of a workpiece to be machined. The positioning plate is further provided with a bending piece, the bending piece is arranged in the first limiting ring and used for bending an opening of the workpiece to be machined, the problem that bending by a bench worker is inconvenient after scribing is avoided, the workpiece to be machined is limited through the limiting ring, it is guaranteed that the workpiece to be machined does not deform in the bending process, and the machining precision is improved. And the bending efficiency, the operation convenience and the workpiece forming quality are improved.