| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 241 | Movable mounting bed apparatus of spring forming machine | US10648342 | 2003-08-27 | US20050044914A1 | 2005-03-03 | Chiao-Mu Kao |
| A movable mounting bed apparatus of a spring forming machine includes a mounting bed, a mounting bed base, a servomotor, a shaft coupling, a ball screw, a screw seat, four sliding seats, two linear sliding rails, a sliding rail base, a wire feeding apparatus supporting base, a foundation, a wire feeding apparatus and six forming apparatuses. The four sliding seats mounted to the bottom of the mounting bed base are engaged with the two linear sliding rails mounted to the sliding rail base. When the servomotor rotates, the ball screw is driven to make the mounting bed base and thus the mounting bed movement forwards and backwards along the linear sliding rail for adjusting the axial finishing space of the working center of the mounting bed. Therefore the forming apparatuses mounted onto the mounting bed can directly manufacture a special spring with an extension portion. | ||||||
| 242 | Mold head device of spring forming machine | US10303860 | 2002-11-26 | US06817220B2 | 2004-11-16 | Tsun-Te Liu |
| A mold head device of a spring forming machine is disclosed. The mold head device includes a rotation mechanism controlling rotation of a rotation head and a linear motion mechanism controlling linear motion of a mold head. The mold head has a plurality of sector-shaped chunk blocks defining diametrically extending channels therebetween for accommodating a spring wire that makes springs. Each chunk block has circumferentially opposite rounded corners having different radii of curvature. The rotation head has a projection engaging and applying a bending force to the wire so as to bend the wire about one of corners of the chunk blocks thereby forming an arc bending of the wire having a radius of curvature corresponding to that of the corner. | ||||||
| 243 | Auxiliary bending device for a spring-making machine | US912167 | 1997-08-15 | US5860308A | 1999-01-19 | Chin-Tu Wu |
| An auxiliary bending device for a spring-making machine having a slide includes a supporting frame adapted to be fastened on a slide of a spring-making machine, a driving mechanism fixedly mounted on the supporting frame and provided with a vertical axle, a bending head force-fitted on the vertical axle and provided with at least two upwardly extending pins for bending a spring wire, whereby the process for making springs can be facilitated. | ||||||
| 244 | Wire forming apparatus | US565281 | 1995-11-29 | US5732583A | 1998-03-31 | Ichiro Itaya |
| A circular table is provided around a wire forming portion. A plurality of forming tool units are disposed on the surface of this circular table such that they are directed to almost the central position (wire forming portion) of the table. Each forming tool unit is movable along guide grooves formed in the surface of the circular table, and its position can be fixed. Therefore, the entering direction of the forming tool mounted to the distal end of the forming tool unit can be arbitrarily changed. Independent servo motors are respectively mounted to the forming tool units, and they can be driven independently of each other. | ||||||
| 245 | Apparatus for forming coil springs | US169048 | 1988-03-16 | US4893491A | 1990-01-16 | Yozo Ohdai; Norifumi Abiru; Eiji Ohbayashi |
| A method of forming coil springs by means of a single forming tool comprising the steps of bending a wire feed from a quill by applying a forming surface of the tip of a forming tool to the wire fed, forming a straight portion be separating the forming surface from the wire, changing the direction of the forming surface by rotating the forming tool about the axis of the quill, and again applying the forming surface to the wire to bend it in a different direction. Subsequently, these steps are repeated to form a coil spring having hook portions and a coiled portion of predetermined configuration and size. In accordance with the present invention, since a single tool is used for a variety of tools, a simplified apparatus can be provided. | ||||||
| 246 | Wire forming machine | US693378 | 1985-01-22 | US4587821A | 1986-05-13 | Willard D. Sykes |
| A wire forming machine in which the coil forming deflection tools are mounted on carriages and have one position to form a coil of a preset diameter and are automatically moved to a second position to continue forming the coil with a second diameter and in which one deflection tool having a tiltable head portion is arranged to be positioned automatically to form a true square corner by overbending the wire engaged. | ||||||
| 247 | Digital control spring forming machine | US701611 | 1985-02-14 | US4586357A | 1986-05-06 | Werner K. Allweier; David W. Knight |
| A wire forming apparatus for making springs with coiled body portions and end loops is modified by providing a digital controlled wire feeding accessory. The accessory permits the normal mechanical feeding of the wire and tooling to be interrupted for desired intervals during the spring forming process thereby allowing digital controlled wire feeding to occur. The digital controlled wire feeding enhances the normal operation of the apparatus by allowing specified lengths of wire to be added to the coiled body portions and/or end loops of the manufactured spring. | ||||||
| 248 | Method and apparatus for forming a pig tail end on a coil spring | US603189 | 1984-04-23 | US4571973A | 1986-02-25 | Motoo Morita |
| Disclosed herein is a method and apparatus for producing a barrel-shaped coil spring, by forming a coil spring having a first pig tail at one end, with a second pig tail at the other end. The method comprises providing a winding jig having a spiral stepped portion suited for forming a desired second pit tail; inserting the winding jig into the other end of the coil spring; and providing a rotary spindle for modifying the other end of the coil spring axially and radially relative to the winding jig, thereby winding the other end of the coil spring around the winding jig to form the desired second pig tail. Apparatus for performing the method is disclosed which comprises a winding jig and a cooperative rotary spindle to provide the second pig tail on the coil spring. | ||||||
| 249 | Apparatus for manufacturing solid tension coil springs having attachment loops at both ends thereof | US682491 | 1984-12-18 | US4542635A | 1985-09-24 | Takeji Matsuoka |
| Apparatus for manufacturing solid tension coil springs providing loops at both ends with excellent productivity under the condition that shape of loop, facing angle of loops at both ends and number of turns between the loops are respectively set accurately to the desired values characterized in that on the occasion of forming a solid tension coil portion by sending the wire material and abutting it in contact with the bending dies, when the end portion of the solid tension coil formed abuts in contact with the contact type sensor for control, sending of wire material is stopped and thereby a solid tension coil spring in the desired number of turns can be manufactured, then the coil spring is cut on the side of bending dies in the condition that said coil spring is held, thereafter said coil spring is sent to the next stage while it is held, and while the next coil spring is being manufactured, both loops are formed by raising simultaneously both ends of the solid coil spring being held. | ||||||
| 250 | Apparatus for raising hooks of semi-finished spring products | US515148 | 1983-07-19 | US4485851A | 1984-12-04 | Hiroshi Takumi |
| The present invention relates to an apparatus for raising hooks of semi-finished springs, which includes a rocking arm arranged to be pivotally movable between an upper and a lower positions and having a pair of lateral semi-finished spring holding pieces at its forward end portion for transferring the semi-finished springs manufactured by a spring manufacturing machine towards a hook raising section provided above a spring discharge opening formed in a table of the apparatus, a clamping unit for fixedly clamping the semi-finished spring holding pieces which have been transferred to the hook raising section, a rotational position control member which rotates the semi-finished spring held between the semi-finished spring holding pieces for its positional control, and a pair of slide members on which hook raising tools are mounted and which are adapted to freely advance towards or retracted from the hook raising section. The apparatus is capable of automatically discharging the finished springs through the discharge opening by opening the pair of lateral holding pieces after accurately effecting the hook raising of the semi-finished spring above the spring discharge opening of the table through the positional control of the semi-finished springs. | ||||||
| 251 | Machines for forming coiled springs | US100246 | 1979-12-04 | US4296621A | 1981-10-27 | Yozo Ohdai; Yasuyuki Takahata |
| A wire coil spring forming machine adapted for use with thick wire prevents breakage of a thin wall in a longitudinal groove in a wire guide member or quill when forming a sharp angle bent between a coil body portion and a leading end loop portion, and permits the start of the next spring leading end loop during formation of last spring trailing end loop. A pair of radially movable members move to advanced positions where they grasp the wire portion of an already formed leading end loop just in front of the longitudinal groove. Another radially movable member abuts the loop to bend it at that point without applying the bending force to the longitudinal groove. A body holder means grasps the body after the main tool forms the trailing end loop to permit severing the semifinished spring from the material wire and bending the trailing end loop. | ||||||
| 252 | Method of forming fixing heads on tension springs and tension springs manufactured by this method | US34524 | 1979-04-30 | US4270261A | 1981-06-02 | Johann Martin |
| A method of forming fixing heads on both ends of tension springs which are made from coiled spring wire, in particular for precision apparatus. A continuous coil of spring wire is expanded over at least two turns at the area of the ends to be formed. The expanded turns are provided with an envelope of a synthetic material by molding. | ||||||
| 253 | Apparatus for severing and deforming the ends of helical binders for pads or the like | US22162 | 1979-03-20 | US4253499A | 1981-03-03 | Jorn-Uwe Lemburg; Dieter Stolley |
| Apparatus for looping the free end portions of the outermost convolutions of helical binders which are threaded through the perforations of a stack of loose leaves has a pivotable tool with a cutting edge which clips the end convolution of a properly located binder and a bending edge which bends the free end portion of the clipped end convolution over the neighboring convolution. A rotary loop forming device is thereupon actuated by a lever to convert the deformed end portion into a loop which surrounds the neighboring convolution. The loop forming device has a guide face which cooperates with a parallel second guide face provided on a reciprocable hold-down device which is caused to extend between the end convolution and the neighboring convolution while the end portion is converted into a loop. These guide faces cooperate with a guide face of a locating projection for the binder and with a guide face of the tool to define a channel which confines the end portion during loop forming so that the loop is located in a plane which includes the axis of the binder. The hold-down device has a notch which receives and prevents deformation of the remaining part of the outermost convolution while the free end portion is being looped around the neighboring convolution. | ||||||
| 254 | Method of and apparatus for producing coil springs with eyelets | US940122 | 1978-09-06 | US4236397A | 1980-12-02 | Gerhard Lange |
| A method and apparatus for producing coil springs formed of wire and with elets formed at the ends thereof are disclosed. The apparatus includes a machine for winding spring bodies detachably affixed to apparatus for transferring them from the winding machine to first and second successive eyelet forming stations wherein, at the first forming station, an eyelet is formed at one end of the spring body and, at the second forming station, an eyelet is formed at the other end of the spring body. The spring bodies are divided into transport groups and supply groups arranged side-by-side on upwardly and downwardly inclined ramps, respectively, with their longitudinal axes parallel and at right angles to the transfer direction. Delivery devices are provided between the downwardly inclined, gravity feed supply ramps and the upwardly inclined transport ramps for the stepwise delivery of spring bodies to the eyelet forming stations. | ||||||
| 255 | Spring winding machine | US946517 | 1978-09-28 | US4227392A | 1980-10-14 | Reijiro Itaya |
| A coil winding machine provides a wire guide member having a wire feed channel therein and a support member turnably arranged in relation to the wire guide member and provided with a turnable core bar member of semi-circular shape in the vicinity of an open end of the wire feed channel with a roll stopper for suppressing movement of the tool and a tool member movable between the core bar member and the roll stopper. | ||||||
| 256 | Apparatus for severing and deforming the ends of helical binders for pads or the like | US898336 | 1978-04-20 | US4153081A | 1979-05-08 | Jorn-Uwe Lemburg; Dieter Stolley |
| Apparatus for looping the free end portions of the outermost convolutions of helical binders which are threaded through the perforations of a stack of loose leaves has a pivotable tool with a cutting edge which clips the end convolution of a properly located binder and a bending edge which bends the free end portion of the clipped end convolution over the neighboring convolution. A rotary loop forming device is thereupon actuated by a lever to convert the deformed end portion into a loop which surrounds the neighboring convolution. The loop forming device has a guide face which cooperates with a parallel second guide face provided on a reciprocable hold-down device which is caused to extend between the end convolution and the neighboring convolution while the end portion is converted into a loop. These guide faces cooperate with a guide face of a locating projection for the binder and with a guide face of the tool to define a channel which confines the end portion during loop forming so that the loop is located in a plane which includes the axis of the binder. The hold-down device has a notch which receives and prevents deformation of the remaining part of the outermost convolution while the free end portion is being looped around the neighboring convolution. | ||||||
| 257 | Helical extension spring and method of making same | US475805 | 1974-06-03 | US3964736A | 1976-06-22 | Joachim Walter Gerhard Huhnen |
| Helical tension spring having a spring body and two eyelets or loops integrally formed with the body of the spring at the ends thereof, the free ends of the eyelets contacting the end coils of the spring body. Each eyelet is under a prestress force which has to be overcome in order to lift the eyelet from the adjacent end coil of the spring body, such pre-stress force being larger than the force applied at the eyelet, which force is necessary to separate the coils of the spring body by a certain distance.The invention also relates to a process of producing the above spring. At both of the end coils of the spring body there is formed a wire section in a plane approximately normal to the spring body. Such wire section as a whole is bent in the plane containing the axis of the spring body, and the wire section is formed into an eyelet by means of a force acting in the direction of the axis of the spring body, such force being applied approximately in the middle of the wire section as being a tensional force which plastically and elastically deforms the eyelet, so that the end sections of the eyelet elastically contact the end coils of the spring body. | ||||||
| 258 | Spring hook forming machine | US49952174 | 1974-08-22 | US3915204A | 1975-10-28 | KAUFMAN ROBERT R; RICHTER ROBERT W; RICHTER ARNOLD H |
| An apparatus and process for forming hooks on the legs of a helical spring. A spring is delivered to gripper means which positions the spring to present one leg to a set of hook forming tools. A hook is formed and bending means operate to bend the spring leg parallel to the axis of the spring coil. Reversing means rotate the spring so that the same operation is performed on the second leg. Drive means and timing means are effective to sequentially operate each of the machine elements so that hooks are formed on both legs of a single spring before a new one is received.
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| 259 | Methods of manufacturing dual interlocked safety spring assemblies | US51825174 | 1974-10-29 | US3905403A | 1975-09-16 | SMITH WOODROW WILSON; YOUNGQUIST DAVID JACK |
| Methods for manufacturing a dual interlocked safety spring assembly for minimizing the dangers resulting from spring breakage, in which two or more springs operating primarily in parallel are interlocking along their length so that upon the breakage of one of the two springs at a point, the broken spring will interlock with the intact spring and still contribute significantly to the magnitude of the remaining total spring force, and methods and machines for the manufacture of such springs.
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| 260 | Wire bender | US37618273 | 1973-07-03 | US3874425A | 1975-04-01 | GUENTHER ARTHUR WILLIAM EDWARD |
| A method and apparatus for bending a straight wire to form a hook, in which the wire is bent by moving an arbor into lateral contact with the wire, moving at least one bending head laterally to bend the wire about the arbor, and withdrawing the arbor and the bending head from the vicinity of the hook. The wire is preferably held against a further arbor, cut to a predetermined length, and bent about the further arbor into a predetermined axis relative to the bending apparatus. A cutter for use with the bending apparatus employs a pair of jaws pivotably closable and then releasable whereby the jaws move longitudinally away from the severed wire.
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