738 results about "Tube bending" patented technology

A fiber optic splice enclosure for housing an interconnection contained in a splice tray between at least one optical fiber of a feeder cable and at least one optical fiber of a drop cable is provided. The optical fiber of the feeder cable is at least partially contained in a feeder cable buffer or transportation tube. The fiber optic splice enclosure includes a support frame arranged in the enclosure. The support frame includes a central office side and a drop side. A basket is arranged on the support frame for storing slack of a spliced buffer tube transitioning to the splice tray. The spliced storage arrangement is sized so as to be able to store slack of the spliced feeder cable buffer tube while maintaining a predetermined tube bend radius. A splice tray mounting arrangement is arranged on the drop side of the support frame for supporting the splice tray.

A geometric arrangement of components in a compact counter-flow heat exchanger that allows for either an increase in effectiveness at a set mass, or a reduction in heat exchanger mass at a set effectiveness, or a combination of the two. The geometric arrangement can be achieved by either tube bending at the level of piece part manufacture and subsequent care during the tube stacking process, or by elastic deformation of the tube stack at the time of bonding.

A system and method for simply and reliably determining the location and orientation of a medical device within a patient's body. A medical device, such as a catheter, has bending indicators on or imbedded in its wall, and passes through an anatomical reference of known orientation relative to a target site within the patient. Information from the tube bending indicators permits determination of the orientation of a feature, such as an orifice, at the distal end of the medical device relative to the anatomical reference. From the known orientation of the anatomical reference, and information on the location and orientation of the distal end of the medical device obtained from fluoroscopic imaging from a single direction, the physician may reliably determine the orientation of the distal feature relative to the target site, eliminating the need for imaging from multiple directions.

The invention discloses laying-off, tube ending and tube bending integrated equipment. The laying-off, tube ending and tube bending integrated equipment comprises a workbench. The laying-off, tube ending and tube bending integrated equipment further comprises a laying-off mechanism, a tube ending mechanism, a flaring/necking mechanism, a tube bending mechanism and a mechanical arm. The laying-off mechanism is used for conducting fixed-length laying-off on a workpiece and arranged on the workbench. The tube ending mechanism is used for conducting tube ending to the end portion of one end of the fixed-length workpiece and arranged in front of the laying-off mechanism in the advancing direction. The tube bending mechanism is used for bending the fixed-length workpiece. The flaring/necking mechanism is used for flaring or necking the end part of the other end of the fixed-length workpiece. The mechanical arm is used for assisting the conveying of the workpiece. The laying-off mechanism comprises a feeding device used for conducting fixed-length feeding and a cutting device used for conducting fixed-length cutting on the workpiece. The laying-off, tube ending and tube bending integrated equipment is simple in structure and suitable for processing of tubes with different sizes. Various processing such as cutting, laying-off, tube ending, hole shrinkage, hole chambering and tube bending can be conducted. The laying-off, tube ending and tube bending integrated equipment is suitable for assembly line production, and the processing efficiency and the processing precision are greatly improved.

A machine and technology for manufacturing the tube part used in air conditioner is disclosed. Said machine is composed of feeding unit, full-automatic tube bending unit and discharging unit. Said full-automatic tube bending unit consists of blanking and tube end shaping unit, feeding manipulator and tube bending unit. Said discharging unit comprises manipulator and discharging basket. Its advantages are high precision, automatization level and utilization rate of raw material.

A tube bending assembly adapted for use with a rotary draw bender, and preferably including a bend die mounting unit for securing a plurality of stacked bend dies drivenly coupled to the bender, a bend die tower unit for structurally supporting the bend die mounting unit, a wiper die mounting unit for securing a wiper die adjacent a selected bend die, a clamp die mounting unit for positioning and securing a clamp die, a pressure die mounting unit for securing a pressure die adjacent the clamp die, a mandrel saddle unit for positioning and enabling the utilization of a mandrel assembly, a collet saddle unit for positioning and enabling the utilization of a collet, and a bolster unit that interconnects the units, so as to present an integrated assembly capable of concurrent disconnection from and connection to the bender, and thereby reducing the tool set change-over period.

The invention relates an electrical heating tube plane numerical controlled tube bending method which comprises the technological processes of setting parameters, tube placing, tube fetching, and bending and forming, wherein the three processes of tube placing, tube fetching and bending and forming are repeated, and the parameters in a numerical controlled system are set so as to finish the wholeaction process. As the tube placing process, tube fetching process and the bending and forming process are adopted, the whole process needs no human intervention, and avoids the influence of human factors on the size, radius and angle of the bent product, thereby achieving the purposes of reducing the product fraction defective and production cost. Compared with the processing mode in the prior art, the method has the advantage of improving production efficiency; and compared with the existing processing equipment, a numerical controlled bending device adopted by the method has the advantagesof convenient operation and simple structure.

The present invention discloses a bending forming processing equipment for pipe material. Said equipment includes the following several portions: bending die clamping die, pressing die, pressurizing plate, circumferential pressure-applying hydraulic cylinder, axial propulsion hydraulic cylinder and bending machine working table. The circumferential pressure-applying hydraulic cylinder pushing rod is rigidly connected with the pressurizing plate, the axial propulsion hydraulic cylinder pushing rod is flexibly connected with the pressing die end portion. The circumferential pressure-applying hydrautic cylinder can be used for driving said pressurizing plate to circumferentially apply pressure to the pipe material, and the axial propulsion hydraulic cylinder can be used for driving pressing die to apply tangential force to the pipe material, the bending die is fixed on the bending machine working table by means of bending centre, and bending die, pressing die and clamping die respectively have the groove fit with the outer diameter of said pipe material, the pressurizing plate is connected with the pressing die by means of dovelail groove, and the pressurizing plate also is connected with the bending machine working table by means of dovetail groove.

The invention relates to a tube bending machine. The tube bending machine comprises a rack, wherein a loading mechanism capable of outputting front-and-back linear displacement actions is arranged on the rack, a prop-bending die is in transmission connection with a power output end of the loading mechanism, two support wheels matched with the prop-bending die to bend corresponding metal tubes are also rotationally arranged on the rack, metal tube limiting mechanisms are arranged in positions, which are located on left and right sides of each support wheel, of the rack, each metal tube limiting mechanism is provided with a limiting channel which extends linearly and laterally and is penetrated through by the corresponding end of each metal tube, and the limiting channels are located on back sides of the corresponding support wheels respectively and provided with channel walls which are in stop fit with the corresponding ends of the metal tubes in the front-and-back direction and in sliding friction guide fit with the corresponding ends of the metal tubes bilaterally when the prop-bending die and the support wheels prop and press the metal tubes. The tube bending machine is not required to be manually held by an operator during usage and can bend R angles.

Disclosed are a numerical-control heating bending die and a forming method for a large-diameter thin-wall pure titanium tube. A plurality of pressure die heating holes are evenly distributed on the upper surface of a pressure die along the length direction of the pressure die, and a pressure die temperature measuring hole is arranged between each two adjacent pressure die heating holes. A plurality of mandrel heating holes and mandrel temperature measuring holes are circumferentially and evenly distributed on an end face of a mandrel, and one mandrel temperature measuring hole is positioned between each two adjacent mandrel heating holes. The pressure die heating holes and the mandrel heating holes are through holes, and the pressure die temperature measuring holes and the mandrel temperature measuring holes are blind holes. By determining a tube bending die, heat insulation of the die and a tube bender, bending speed, lubrication of the tube and the die, and heating and temperature control of the die, numerical-control heating bending of the thin-wall pure titanium tube with the diameter D larger than 40mm is realized, the problem of serious necking of the tube in a clamping area due to uneven heating temperature of the tube is avoided, excessive energy consumption for constant-temperature heating of the tube is reduced, the strength of a clamping end is ensured, and the bending yield of the tube is improved.

A probe having a flexible, small diameter fiber sheathed in a small diameter flexible tube comprising the distal tip of the probe. The small diameters of the fiber and tube allow the fiber to be bent in a tighter radius along essentially the entire length of the exposed portion of the fiber, with low tube bending forces during insertion, providing a compact design which eliminates the need for a straight distal portion. The small diameter tube also allows a greater wall thickness outer cannula to be used, thereby increasing instrument rigidity. This compact, rigid design with low insertion forces allows the fiber greater access to the internal posterior structures of the eye, while providing increased instrument rigidity for manipulation of the eye, as well as low insertion forces.

This invention is a manually operated tube bending machine with a power drive mechanism that is adjustably set to a desired bend speed. The bending machine includes a bending die, a counter die and a rotating hook die to form a desired bend into a tube or pipe. The tube bender includes a drive wheel with ratchet teeth around its perimeter. A drive pin grips one of the ratchet teeth. The drive pin is secured to a lever and torque bar. During each bending stroke, the lever and torque bar incrementally rotate the drive wheel a desired amount. The rotation of the drive wheel and hook die draw the tube through the bending and counter dies to bend the tube. An anti-spring back mechanism holds the position of the drive wheel while the power drive mechanism is advanced to grip the next ratchet tooth of the drive wheel.

A heat exchanger ( 301, 501, 601 ) comprising a first tube ( 107, 507, 607 ) for fluid transmission and a second tube ( 108, 508, 608 ) for fluid transmission within a heat transfer system that uses a working fluid which undergoes compression and evaporation. The first tube is placed in thermal contact with the second tube for a portion ( 109,110 ) of the respective lengths of the first tube and the second tube so as to allow an exchange of heat between the fluid within said tubes. The first tube ( 107, 507, 607 ) is constructed from steel alloy which has alloyed components to reduce the hardness of the steel to facilitate tube bending within a heat transfer system, thereby allowing the first tube to be constructed from the steel within the heat transfer system, in preference to copper.

The invention relates to a cold-rolled steel strip, and especially relates to a cold-rolled steel strip for a double-layer welded tube and its manufacturing method to mainly solve technical problems comprising bad product yield and bad performance uniformity because of cover annealing generally adopted in the manufacturing of the double-layer welded tube. The chemical components of the cold-rolled steel strip for the double-layer welded tube comprise 0.015-0.054wt% of C, 0.034wt% or less of Si, 0.15-0.25wt% of Mn, 0.020wt% or less of P, 0.020wt% or less of S, 0.015-0.050wt% of Alt, and the balance Fe and inevitable impurity elements. In the invention, low carbon and low silicon are adopted, aluminum deoxidization is adopted as a crystal grain refinement element, and impurity form control, hot continuous rolling control cooling, continuous annealing temperature control and continuous flattening technologies are utilized to produce, so it is helpful for the guarantee of the yield strength, the percentage elongation after fracture and the hardness of the steel in prescribed requirement ranges. The cold-rolled steel strip makes the tube manufactured through using it have the advantages of good full-length performance uniformity, good roll bend formability, good tube barrel lap rebound controllability, good weldability, and good tube bending performance, and can guarantee the yield in the complete tube manufacturing flow.

The material feeding push assister for tube bending machine includes feeding bogie on the tracks, pushing sleeve on the bogie and its driver, clamp in the end of the pushing sleeve and its driver, rack on one side of the tracks to mesh with the gear in the feeding bogie, servo motor connected to the gear via transmission unit, and automatic computerized controller connected with the servo motor. The present invention has simple structure, high transmission precision, constant force pushing of the fed material and high tube bending quality.

The invention discloses a tube bending machine for an air-conditioner heating tube. A fixing shaft and an adjustable rotary column are arranged by arranging a rotary disc capable of rotating in order to fix one end of the heating tube, the other end of the heating tube is fixed through a fixing mechanism, an adjusting column of the fixing mechanism can adjust the position of a first adjusting block in order to adjust the distance between a fixing block and the first adjusting block to be suitable for different heating tubes, and then the tube can be bent by rotating the rotary disc. In addition, a locating block is arranged to locate the length of the heating tube, and a guide column is arranged to guide the heating tube. The tube bending machine is simple in structure and easy to operate, can flexibly adapt to bending different heating tubes, saves the production cost, improves production efficiency and is suitable for being applied to production.

The invention discloses an axial flow water jet propulsion pump. It includes a pump body, the pump body contains a cylindrical middle section, the front end and the rear end of the cylindrical middle section are respectively provided with a rectification spout and an inlet elbow, and an inner bearing seat is arranged in the cylindrical middle section. The inner bearing seat is coaxial with the cylindrical middle section, and guide vanes are connected between the periphery of the inner bearing seat and the inner wall of the cylindrical middle section. A pump shaft is arranged in the pump body, and the front end of the pump shaft passes through the inner bearing seat and protrudes in front of the inner bearing seat, and impellers are arranged on the pump shafts on both sides of the inner bearing seat. The rear end of the pump shaft passes out of the bend of the inlet elbow, and the rear end of the pump shaft is provided with a first outer bearing seat, and the rear end of the pump shaft penetrates into the first outer bearing seat. It is characterized in that a bevel gear is installed on the part of the pump shaft extending beyond the bend to the first outer bearing seat, and the diameter of the front end of the bevel gear is smaller than that of the rear end. The axial flow water jet propulsion pump has simple structure, short axial dimension, light weight and low manufacturing cost. Suitable for installation on ships to propel ships to sail.

An ink jet printer includes an ink container supplying ink through a tube member to a separate print head to form an image. The ink jet printer also includes a guide rail to guide the print head, a transport roller to feed the recording medium, and a cover to prevent the tube member from contacting the roller. As the print head reciprocates in a width direction of a recording medium, the tube protruding from a surface of the print head on an end side in a moving direction thereof bends or flexes when the print head moves together with a carriage. The bending of the tube in the rearward direction is restricted by a tube band contacting the transport roller and cover. The cover and guide rail form a plane vertical to a platen at front faces of the cover and the guide. When the bending or movement of the tube is blocked or restricted by the vertical plane to a tube bending direction, the tube is not raised. Therefore, a resistance is not applied to the print head during the movement of the print head. Thus, the bending or movement of the tube can be restricted without providing a special device for the ink jet printer.

A vertically oriented tube bending apparatus includes a vertically oriented support frame, which takes up less floor space than the previously known tubing benders. A tube bending apparatus in accordance with the invention, generally, includes a support frame having a length, a width, and a height, wherein the greatest of these is the height. The apparatus further includes a tubing advance mechanism, attached to the support frame, for advancing a tubing workpiece along a substantially vertical path. A bend die is also provided which is rotatably attached to the support frame and pivotally movable about a pivot axis. The bend die has an outer side edge with an arcuate peripheral groove formed therein to receive a portion of a tubing workpiece. The apparatus also includes a pressure die movably attached to said support frame. The pressure die has a reciprocally movable first pressure applicator for applying pressure to a follower slide; and a follower slide which is slidably attached to said first pressure applicator. The follower slide includes an inner face having an arcuate cutout channel formed therein to receive a portion of a tubing workpiece therein substantially opposite the bend die. The apparatus also includes a bend arm assembly for bending a tubing workpiece against the bend die. The bend arm assembly is rotatably movable about the pivot axis of the bend die. The invention also encompasses a method of using the vertically oriented tubing bender to bend a piece of tubing stock.