JPS6012241A - Device for producing spring - Google Patents

Abstract

PURPOSE:To provide a producing device which can make mass production of a spring to be used for mattress, etc. by constituting in such a way that a straight part and respective spiral spring parts at both ends of the straight part are continuously formed from a piece of wire rod. CONSTITUTION:A piece of wire rod 27 delivered from a stacking part 5 is brought into contact with stoppers 31, 33 and is then positioned in the longitudinal direction of a main body 1. A rotating plate 51 is then rotated 90 deg. to form bent parts 27a at both ends. After the midway part of the rod 27 is grasped with a hook 77, a gripping arm 61 is rotated about 270 deg. to insert both ends of the rod 27 to a pair of holding rollers 135 provided to movable bodies 87. A pair of the bodies 87 are driven in the direction where the bodies approach to each other to let off both ends of the rod 27 from between a pair of the rollers 135 thereby bringing the bent parts 27a into contact with the outside circumferential direction of the rollers 153 and forming spirally the above-mentioned two ends. After one turn of spiral is formed to each of the two ends of the rod 27, the spirals of a pitch P are successively formed according to the traveling of the bodies 87. A spring 197 provided with a straight part 27c and the spiral spring parts 27b is thus formed.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for manufacturing springs used in pine tresses, tom pine tresses, and the like.

For example, a spring unit having the structure described below is known as a spring unit used in a Bettomano Torres. In other words, a main spring consisting of a straight part and a pair of spring parts whose upper ends are connected to both ends of this straight part is formed using a single wire - and the straight parts of a large number of main springs are assembled in a lattice shape to form a rectangular shape. Placed on a plate-shaped base. A lower end of the spring portion located at a peripheral portion of the base body is fixed to the base body. Furthermore, the linear portions of the main springs arranged in a lattice pattern are reinforced by intermediate support springs. This intermediate support spring, like the main spring described above, consists of a straight part and a pair of spring parts whose upper ends are continuous with both ends of this straight part. The upper end of the spring part of the intermediate support spring is connected to the straight part of the main spring,
A lower end is fixedly provided to the base body.

Conventionally, in the spring unit having the above configuration, the spring portions of the main spring and the intermediate support spring have been torsion bar spring portions.

The torsion bar spring portion has a small amount of deformation under compressive load. Although it has the hardness to reliably support the user, it is susceptible to permanent deformation when subjected to repeated compressive loads. Therefore, the spring unit has the disadvantage that it quickly loses its elasticity.

Therefore, it has been considered to make the spring part a helical spring part as a spring to eliminate such drawbacks. If the spring part is a helical spring part, the elasticity of the spring unit can be maintained well over a long period of time since the spring part is only 5 times smaller than the torsion bar spring part. However, since no manufacturing equipment has been developed for mass-producing the spring 1, which is made by continuously molding spiral spring parts at both ends of a straight part, such a spring can be used to form a spring unit of a bottom pine tress, etc. This invention was made based on the above-mentioned circumstances, and its purpose is to create a spring in which a straight portion and a spiral spring portion are continuously formed at both ends of the straight portion using a single wire. The purpose of this invention is to provide a spring manufacturing device that can mass produce springs.

An embodiment of the present invention will be described below with reference to FIGS. 1 to 24. The spring manufacturing apparatus shown in FIGS. 1 and 2 includes a main body 1. The spring manufacturing apparatus shown in FIGS.

A wire rod accumulation section 5 shown in FIGS. 2 to 4 is provided on the upper surface of the main body 1. This accumulation section 5 is constructed as follows. Three mounting members 7 are provided on the upper surface of the tab and main body 1 and are tilted low toward the front side of the main body 1. On the upper surface side of the pair of mounting members 7 located at both ends of the main body 1 in the longitudinal direction, a presser member 9 is arranged at a predetermined distance from the upper surface. In addition, a notch 13 of the transfer plate 11 is provided on the top surface of the distal end of the mounting member 7.
One end portion where is formed is fixed. A recess 15 is formed at the tip of the holding member 9 corresponding to the notch 13. The other end of the spanning plate 11 is a rectangular receiving plate that is inclined at approximately the same angle as the mounting member 7 on the upper surface of the main body 1 and is disposed at a lower position than the mounting member 7. It is located on the top surface of 17. Furthermore, an ejecting cylinder 19 is arranged on the lower surface side of the bridge corresponding to the notch 13 of the span plate 11. A push-up body 25 having a tapered surface 23 is fixed to the rod 21 of the cylinder 19 .

Further, in the gap between the mounting member 7 and the holding member 9, a large number of wire rods 27 of a predetermined length are accumulated so as to be freely transferable. The wire rod 27 located at the most extreme end is in contact with the end surface of the spanning plate 11. Therefore, the ejection cylinder 19
When the rod 21 is activated and the rod 21 is raised, the wire rod 27 located at the tip comes out of contact with the transfer plate 11, rolls on the transfer plate 11, and the receiver reaches the plate 17. Note that on both sides of the pair of mounting members 2 on the upper surface of the main body 1, there are
Guide plate 2 that prevents the wire rod 27 from shifting in the axial direction
9 is provided.

The wire rod 27 transferred to the plate 17 contacts the first stopper 31 provided at the center of the upper surface of the main body 1 and the second stopper 33 provided at both ends, and the wire rod 27 is transferred to the plate 17. thwarted. As shown in FIG.
5 is provided with a movable plate 37. As shown in FIGS. 6 and 7, the movable plate 37 is connected to a rod 4 of a drive cylinder 39 provided on the lower surface of the plate 17, and the cylinder 39 moves in the direction shown by the arrow in FIG. That is, it is driven along the axial direction of the wire rod 27. The above movable plate 3
A positioning cylinder 43 is provided on the upper surface of 7, and a push plate 47 is provided on this rod 45.

In addition, a through hole 49 is bored in the movable plate 37, and the through hole 49 is formed in the movable plate 37.
At 9, a rotary plate 5 is rotatably provided so that the receiver is flush with the plate 17. On the lower surface side of this rotary plate 51,
A rod 55 of the first rotary cylinder 53 held by the movable plate 37 is connected. This rod 55 is configured to rotate by a predetermined angle, for example, 90 degrees, when the cylinder 53 is actuated. Moreover, on the upper surface of the rotating plate 51,
A center pin 57 is provided protruding from the center of rotation, and a bearing 59 is provided at a position offset from the center at a predetermined distance from the center pin 57. And the above wire rod 2
7 is rolled by the push-up cylinder 19 and comes onto the receiving plate 17, the driving cylinder 39 is operated and the movable plate 37 is driven. Then, the end of the wire 27 is inserted between the center bin 57 of the rotating plate 51 and the bearing 59. In this state, the positioning cylinder 43 operates to press both ends of the wire rod 270 against the push plate 47, thereby positioning the wire rod 27 in the axial direction. Next, the rotating cylinder 53 is actuated to rotate the rotating plate 5 by 90 degrees, and the bent portions 27a shown in FIG. 20 are formed at both ends of the wire 27 by the center pin 57 and the bearings 59.

In this way, the wire 2 has bent portions 27a formed at both ends.
7 is taken out from the upper surface of the main body 1 by a pair of gripping arms 61, which are a taking-out mechanism. As shown in FIG. 2, a mounting shaft 63 is rotatably supported by a plurality of bearings 65 along the longitudinal direction of the main body 1 on the front end side of the top surface of the main body 1. A rod 69 of a second rotating cylinder 67 is connected to one end of this mounting shaft 63. The mounting shaft 63 is configured to be rotated by a second rotating cylinder 67 within a predetermined angle, for example, within a range of approximately 270 degrees. The pair of gripping arms 61 are connected to a midway portion of the mounting shaft 63. In other words, the grip
The Muro 1 is attached to the mounting shaft 63 as shown in FIGS. 8 and 9.
a base 71 having one end fixed to the base 71; a drive cylinder 73 provided at the other end of the base 71;
a hook 77 pivotally attached to the rod 75;
A sleeve 7 is fitted onto the sleeve 5 and fixed to the cylinder 73.
It consists of 9. A groove 80 is formed at the tip of this sleeve 29, and the hook 77 is inserted into this groove 87, and a pin 82 protruding into this groove 80 is inserted into a guide hole formed in the seven notches 77. It is inserted in 84. Therefore, when the drive cylinder 730 rod 75 is actuated in the retracting direction, the hook 77 rotates in the direction of the arrow shown in FIG. The pair of gripping arms 61 are located on the upper surface side of the main body 1 until the bent portions 27a are formed at both ends of the wire rod 27. At this time, the midway portion of the wire 27 is engaged between the hook 77 and the end surface of the sleeve 79. When the bent portions 27a are formed at both ends of the wire rod 27, the drive cylinder 23 is activated to rotate the hook 77, and the middle portion of the wire rod 27 is brought into contact with the end surfaces of the hook 77 and the sleeve 79. be held in place.

When the wire rod 27 is clamped by the pair of gripping arms 61, the second rotation cylinder 67 is operated and the arms 61 are rotated approximately 270 degrees. Then, the wire rod 27 is located opposite to the front surface of the main body 1.

As shown in FIG. 1, a channel-shaped horizontal member 81 is installed on the front surface of the main body 1 along its longitudinal direction. A pair of guide rails 83 are laid in parallel on the upper surface of this horizontal member 81, and a rack 85 is provided on the lower surface. A pair of movable bodies 87 are provided on the guide rail 83 so as to be movable. The movable body 87 is formed by integrally connecting the lower housing 89 and the upper housing 91, and the guide rail is provided on the inner surface of the upper part of the lower housing 89 as shown in FIGS. 10 and 11. A pair of receivers 93 that slidably engage with the receivers 83 are provided. Furthermore, a pair of first support shafts 95 are rotatably installed in the lower housing 89 in the front-rear direction. A first gear 97 is attached to these first support shafts 95.
is fitted and meshed with the rack 85. Further, a second support shaft 101 on which a second gear 99 is fitted is rotatably installed in the lower housing 89, and the second gear 99 meshes with one of the first gears 97. ing. One end of the second support shaft 101 protrudes toward the back side of the lower housing 89, and the first Sugerocket 103 is fitted into this protruding end. Further, a drive motor 105 is provided inside the lower housing 89, and this rotating shaft 107 protrudes to the back side of the lower housing 89, and a second Sugerocket 109 and a third Sugerocket are attached to the protruding end.
A Sugerocket 111 is fitted. Then, the first Suge rocket 103 and the second Suge rocket 109
A first chain 113 is stretched between the two, and the rotation of the rotating shaft 107 of the drive motor 105 is transmitted to one of the first gears 97 via the chain 113. Therefore, the movable body 87 is driven to travel along the pair of guide rails 83 by the rotation of the first gear 97.

On the other hand, the upper housing 91 rotatably supports a third support shaft 115 and a fourth support shaft 117 that penetrate in the front-rear direction. A fourth sprocket 119 is attached to one end of the third support shaft 115 that protrudes from the back side of the upper housing 9.
and a fifth tin rocket 121 are fitted. The fourth sedge rocket 119 and the third sedge rocket 1
A second chain 127 is stretched between the chain 11 and the chain 127. In addition, a third gear 129 and a fourth gear 1 which are in mesh with each other are located halfway between the third support shaft 115 and the fourth support shaft 117.
31 are fitted respectively. Furthermore, the third and fourth
Holding rollers 135 having #133 formed on the outer peripheral surface are fitted to the other ends of the support shafts 115 and 117 that protrude toward the front side of the upper housing 91. The wire rods 27 are spaced apart from each other in the vertical direction by a larger interval than the diameter thereof, and as the other end of the fourth support shaft 117 rotates upward, the interval between the pair of holding rows 2135 narrows. . In other words, both ends of the fourth support shaft 117 are swingably supported by self-aligning bearings 137 on the upper housing 91, and one self-aligning bearing 137 that supported the other end is attached to the slide body. It is held at 139. As shown in FIG. 12, this slide body 139 is slidably inserted into a slide groove 141 formed along the vertical direction in the front plate 91a of the upper housing 9. A push-up cylinder 14 is provided at the lower end of the slide groove 141.
3 are arranged. Receptacles 145 are provided on the cylinder 1430 (not shown) and the lower end surface of the slide body 139, respectively, and a compression spring 147 is interposed between these receptacles 145. Therefore, when the push-up cylinder 143 operates and the compression spring 147 is compressed, the slide body 139 is raised by the restoring force of the compression spring 147, and the fourth support shaft 117 swings. The push-up cylinder 143 is activated after the pair of gripping arms 61 are rotated 270 degrees from the upper surface of the main body 1 to the front side by the second rotating cylinder 67. The gripping arm 61 rotates to hold the wire 270.
When both ends are inserted between the pair of spaced apart holding rollers 135 of the pair of movable bodies 87, the push-up cylinder 143
is operated to raise the lower holding roller 135. Therefore, both ends of the wire 27 are connected to each pair of holding rows 2135.
It is held in such a state that it does not come out from these grooves 133. At this time, the bent portions 27m formed at both ends of the wire 27 face downward as shown in FIG. 19.

Further, on the front plate 91h of the upper housing 91, an auxiliary guide body 148, an ejecting bottle 149, a guide body 151, and a forming roller 153 are sequentially provided on the side of the holding row 2135. A pitch rod 155 is provided between the forming roller 153 and the forming roller 153 .

The ejecting pin 149 is connected to a bracket 1 provided on the inner surface of the front plate 91a of the upper housing 91 as shown in FIG.
The middle part of the link 159 is connected to one end of the link 159 which is pivotally attached to the link 57 . The other end of this link 159 is pivotally connected to a mouth rad 163 of an actuating cylinder 161. therefore,
When the actuating cylinder 161 is actuated and the rod 163 is retracted in the direction of the arrow, the ejector bottle 149 protrudes from the front plate 91m. The guide body 151 is formed into a disk shape, and is eccentrically fixed to a rod 167 of a third rotary cylinder 165 disposed inside the upper housing 9'1, as shown in FIGS. 15 and 16. has been done. This guide body 1
51 has an insertion groove 169 formed therein.

When the wire 27 is fed between the pair of holding rows 2135, both ends of the wire 27 are inserted into the insertion groove 169.
inserted into. Further, the guide body 151 is rotated by the third rotating cylinder 165 at an angle of approximately 90 degrees. The third rotary cylinder 165 operates after spiral spring portions 27b shown in FIG. 21 are formed on both ends of the wire 270, as will be described later. In addition, the forming roller 15
3 has a guide groove 171 formed on its outer peripheral surface as shown in FIG. 15, and is rotatably supported by a mounting shaft 173 on the front plate 91a. Furthermore, the pitch rod 15
5 is a protruding shaft 175 as shown in FIGS. 17 and 18.
is installed at one end of the This protruding shaft 175 has a rectangular cross section and is slidably supported by a receiver 177 disposed within the upper housing 91. A cam follower 179 is provided at the other end of this protruding shaft 175,
This cam follower 179 is in contact with a cam surface 183 of a cam 181. The cam 181 is fitted onto a fifth support shaft 185 rotatably supported by the receiver body 177. Further, a tension spring 187 is stretched between one end of the protruding shaft 175 and the receiver body 177, so that the cam follower 179 is pressed against the cam surface 183 of the cam 181. Further, a sixth tin rocket 189 is fitted onto the fifth support shaft 185, and a fifth sprocket 121 fitted onto the third support shaft 115 is connected to the sixth sprocket 189. As shown in FIG. 10, a third chain 191 is stretched. Therefore, the cam 1
81 is adapted to be interlocked with the rotation of the third support shaft 115 when the drive motor 105 is operated and the third support shaft 115 is rotated. Note that the fifth support shaft 185 and the tab cam 181 are connected to the teeth of the fifth sprocket 121 and the sixth tin rocket 189 so as to rotate once while the helical spring portion 27b is formed at the end of the wire 22. A numerical ratio is set.

Further, as shown in FIG. 1, the horizontal member 81 installed on the main body 1 has a pair of first limit switches 193 at the center in the longitudinal direction, and a pair of second limit switches 195 at both ends in the longitudinal direction. and is provided. These limit switches 193 and 195 are electrically connected to a drive motor 105 provided on the movable body 87, and regulate the travel range of the movable body 87. In other words, the pair of movable bodies 87
When it runs in the direction of approaching, it is stopped by operating the first limit switch 193, and when it runs in the direction of moving away, it is stopped by operating the second limit switch 19.
It is stopped by activating 5.

Next, the operation of manufacturing a spring using the above-mentioned manufacturing apparatus will be explained. First, when the start switch on the operation panel is turned ON, the ejecting cylinder 19 is operated to feed out one wire 27 from the collecting section 5. This wire rod 27 rolls on the transfer plate 11 and passes through the first and second stocks. 3
1.33. Next, the positioning cylinder 43 is operated to position the wire rod 27 along the longitudinal direction of the main body 1, and then the first rotation cylinder 53 is operated to rotate the rotary plate 51 by 90 degrees. The wire rod 2 is connected to the center bin 57 and the bearing 59 provided in
Bent portions 22-a are formed at both ends of 7.

When the bent portions 27a are formed at both ends of the wire 27, the drive cylinder 73 of the gripping arm 61 is actuated, and the hook 77 grips the middle portion of the wire 27. Next, the second rotating cylinder 67 is actuated to
1 is rotated approximately 270 degrees, and both ends of the wire rod 27 are inserted between a pair of holding rollers 135 provided on each movable body 87. Then, the push-up cylinder 143 provided on the movable body 87 operates to push up the lower holding roller 135, and both ends of the wire 27 are held by the grooves 133 of the pair of holding rollers 135. Further, when the push-up cylinder 143 is operated to hold both ends of the wire rod 27, the gripping arm 61 returns to its initial state.

Next, the drive motors 105 of the pair of movable bodies 87 are activated, and these movable bodies 87 are driven from the separated state shown in FIG. 1 in a direction toward each other. Then, as the movable body 87 travels, the pair of holding rows 2135 rotate in the direction shown by the arrow in FIG.
It will be played out relatively from between 35 and 35. Therefore, the bent portions 27a formed at both ends of the wire 27 abut against the outer peripheral surface of the forming roller 153, and both ends of the wire 270 are bent into a spiral shape.

At this time, bent portions 27m formed at both ends of the wire 27
is directed downward, so both ends of the wire 27 are bent downward. Further, the diameter of the spiral is determined by the distance between the guide body 151 and the forming roller 153, as shown in FIG. In this way, when one spiral is formed at both ends of the wire 27, the pitch rod 155 protrudes forward from the surface of the front plate 91a of the upper housing 91, pushing up the spiral formed on the wire 27. . In other words, as the movable body 87 moves, the fifth support shaft 185 on which the cam 181 is fitted rotates, so that the cam follower 179 in contact with the cam surface 183 of the cam 181 moves from the bottom dead center to the top dead center. As a result, the ejecting shaft 175 is displaced and the pitch rod 155 is protruded. Therefore, after one spiral is formed at both ends of the wire rod 27, the pair of movable bodies 87
The spiral formed sequentially as the zero travels is the pitch rod 1.
They are formed at a pitch P shown in FIG. 21, which corresponds to the amount of protrusion of 55. Then, the pair of movable bodies 87
By activating the limit switch 193 to stop the travel, the helical spring portion 2 consisting of a spiral with a predetermined number of turns is activated.
7. The molding of b is completed. The wire rod 27 is the second
As shown in FIG. 1, a sedge ring 197 is formed which includes a straight portion 27c and a spiral spring portion 27b whose upper end is continuous with both ends of the straight portion 27a.

When the molding of the first helical spring portion 27b is completed in this way, the third rotating cylinder 165 is operated to move the guide body 15
1 is rotated 90 degrees in the direction shown by the arrow in FIG. Then, both ends of the linear portion 27c inserted into the insertion groove 169 of the guide body 15 are bent at approximately 90 degrees, forming a linear bent portion 27tl that continues with the last spiral of the helical spring portion 27b. is formed. This bent portion 27d is the 24th
As shown in the figure, it is used to connect frame lines 199 with clips 201. When a spring unit is formed by assembling a large number of springs 197 with their linear portions 27a in a lattice shape, the frame line 199 is provided around the periphery of the spring unit. In this case, the above frame line 1
99 and the straight part 27d are in line contact, chryso f20
Since they are connected by 1, their combined state is certain.

In this way, when the bent portions 27d are formed at both ends of the straight portion 27c of the spring 197, the urging of the lower holding roller 135 by the push-up cylinder 143 is released, and the pair of holding rows 2135 are separated. At the same time, the actuating cylinder 161 is actuated and the ejector pin 149 protrudes. Therefore, the ejector pin 149 presses the straight portion 27d of the cysno ring 197, so that the suge ring 197 falls toward the front side of the main body 1.

When the spring 197 is dropped from between the pair of holding rows 2135, the pair of movable bodies 87 move in the direction of separation. When these movable bodies 87 actuate the second limit switch 195 and stop, the above-described steps are repeated again to form the spring 197 from the wire 27.

This invention is not limited to the above-mentioned embodiment, and the forming roller 15
3 may be provided as shown in FIGS. 25 and 26. A guide groove 2θ5 is formed along the width direction in the front plate 91a of the upper housing 91 of the movable body 87, and a support body 2'07 is slidably provided in the guide groove 205. A mounting shaft 209 is provided to pass through this support body 207 in the front-rear direction. A forming roller 153 is fitted to one end of the mounting shaft 209 protruding toward the front side, and a cam follower 211 is fitted to the other end located inside the upper housing 91. Further, a fifth support shaft 1 is attached to the receiver 177 disposed in the upper housing 91.
A sixth support shaft 213 is rotatably supported in parallel with 85.

A cam 215 is fitted to one end of this sixth support shaft 213. Further, the support body 207 is urged in the direction of the arrow by a tension spring 217, and a cam follower 211 provided on the support body 207 is in pressure contact with the outer peripheral surface of the cam 215. Furthermore, the sixth support shaft 213 and the fifth support shaft 185
A pulley 219 having the same number of teeth is fitted to the other end of the pulley 219 , and a chain 211 is stretched around these pulleys 219 .

According to such a configuration, when the movable body 87 travels to form the spring 197 and the fifth support shaft 185 rotates, the sixth support shaft 213 also rotates. Sixth support shaft 21
3 rotates, the cam 21 fitted on this support shaft 213
A support body 207 provided with a cam follower 211 according to the shape of the guide groove 205 slides along the guide groove 205 . Therefore, the forming roller 15 provided on the support body 207
3 and the guide body 151 provided on the rod 167 of the third rotating cylinder 165 changes.
The diameter of the spiral formed at both ends of 7 can be varied.

In other words, according to the rotation of the sixth support shaft 213, the forming roller 1
If the shape of the cam 215 is set so that the distance between the cam 53 and the guide 151 changes as shown by A in FIG. 27, the shape of the helical spring portion 27b becomes a wrap shape as shown in FIG. 28.

Further, if the above-mentioned interval is changed in the state shown in B, the spiral spring part 27b becomes an inverted conical shape as shown in FIG. 29, and if it is changed in the state shown in B, it becomes a conical shape as shown in FIG. becomes. That is, the shape of the helical spring portion 27b is changed to the shape of the cam 215.
Spring 1 with the desired performance can be arbitrarily changed by
97 can be molded.

As described above, according to the present invention, it is possible to provide an apparatus for mass-producing springs in which a straight portion and spiral spring portions are continuously formed at both ends of the straight portion using a single wire.

[Brief explanation of the drawing]

1 to 24 show one embodiment of the present invention, and the first
The figure is a front view of the device, Fig. 2 is a plan view, Fig. 3 is a plan view of the accumulation section, Fig. 4 is a side view, and Fig. 5 shows both ends of the wire fed out from the accumulation section. 6 is a plan view of the part forming the bent part, and FIG. 6 is a side view taken along the line ■-■ in FIG.
Figure 7 is a sectional view taken along the line ■-■ in Figure 5, Figure 8 is a plan view of the gripping arm, Figure 9 is a side view, Figure 10 is a front view of the movable body, and Figure 11 is a Fig. 10 is a sectional view taken along the line XI-XI, Fig. 12 is a sectional view of the fourth support shaft mounting structure, Fig. 13 is a plan view of the movable body, and Fig. 14 is a plan view of the ejector pin mounting structure. , 1zxs is a sectional view of the mounting structure between the forming roller and the guide body, and Figure 16 is Figure 15 wl-XVI.
17 is a plan view of the mounting structure of the pitch rod, FIG. 18 is a sectional view taken along the line from FIG. 17 to the door line, and FIG.
The figure is an enlarged view of the upper front surface of the movable body, Figure 20 is a plan view of the wire rod with a bent portion formed at the end, Figure 21 is a perspective view of the wire rod formed into a spring, and Figure 22 is a perspective view of the wire rod formed into a spring. The figure is a plan view, FIG. 23 is a perspective view of the spring with bent portions formed at both ends of the straight portion, FIG. 2″4 is a plan view thereof, and FIG. 25 is another embodiment of the present invention. A plan view of the forming roller mounting structure showing an example, FIG. 26 is also a front view, and FIG.
The figures are explanatory diagrams showing various settings for changing the distance between the forming roller and the guide body as the cam rotates, and FIGS. 28 to 30 are perspective views of springs formed by changing the distance described above. DESCRIPTION OF SYMBOLS 1... Main body, 27... Wire rod, 83... Guide rail, 87... Movable body, 135... Holding roller (holding mechanism), 151... Guide body, 153... Forming roller , 155? ...Pitch stick. Applicant's Representative Patent Attorney Takehiko Suzue Figure 5 Figure 6 Figure 7 Figure 1 Figure 9 Figure 10 Figure XI Figure 11 Figure 14 Figure 15 Figure 16 Figure 17 Figure 18 Figure 19 Figure 71T Figure 26 Director General of the Patent Office Kazuo Wakasugi 1. Indication of the case Japanese Patent Application No. 1983-120345 2 Title of invention Spring manufacturing device 3. Relationship with the case of the person making the amendment Patent applicant (AO 3) Kukunsu Hetu Co., Ltd. 5, Voluntary amendment 7, Contents of the amendment (1) “Yasuji Iwata” in the inventor column of the application was replaced with “Yasuji Iwata” "Next" is corrected. (2) 1 on page 7, line 14 to line 19 of the specification - and the line side 27... enters. ”, there is
rI- Then, when the wire rod 27 is rolled by the push-up cylinder 19 and comes onto the receiving plate 17, the rotating plate 51
The end of the wire 27 enters between the center bin 57 and the bearing 59. ” he corrected. (3) Similarly, on page 10, lines 3 and 4, "The gripping arm 61 FC causes...the second rotating cylinder 67."
When the wire is clamped by the gripping arm 6, the drive cylinder 3''''9 is operated to drive the movable plate 37, and the center bin 57 is separated from the bent portion 27m of the wire 27. The rotating cylinder 67 is corrected as follows. (4) Similarly, on page 18, lines 15 and 16, it says, “When the bent portions 27m are formed at both ends of the wire 27,” “°The bent portions 27h are formed at both ends of the thin material 270.” , and when the movable plate 37 is driven by the operation of the drive cylinder 39, it is corrected as follows. (5) Similarly, on page 19, lines 10 to 15, there is a statement that says, "Next, the pair of movable bodies 87 rotates in the ... direction." 105 is activated, the pair of holding rollers 135 rotate in the direction shown by the arrow in FIG. 1, pull in both ends of the line side 27, and the pair of movable bodies 87 approach from the separated state shown in FIG. 1. ” and correct it. Kazuo Wakasugi, Commissioner of the Japan Patent Office1, Indication of the case, Patent Application No. 1983-1203452, Name of the invention, Nuplinda manufacturing device3, Person making the amendment, Relationship with the case, Patent applicant (AO3), TPA style to France Company 4, Agent 6, Creation of amendment Specification 7, Contents of amendment (1) Page 8 of the specification, lines 2 to 3 (-“Next,
Next, the gripping arm 61 (described later) clamps the middle part of the wire 27 and sets it (i! 1) to correct the rotating scissor cylinder 53. (2) Similarly After the 8th-2nd line 1- is formed (-1° 7°C, the plate 51 returns to its original position (-), and the drive cylinder 39 is activated. E]
= The plate 37 is driven, and the bent part 27a of the wire 27 is bent 11
The center pin 57 can be stopped. ” he added. (3) Similarly, on page 9, line 13 to page 10, line 5, it says, "The above pair... can be rotated."vl
- The pair of gripping arms 61 are operated by the drive cylinder 39 to drive the movable plate 37, and the wire rod 27 is bent 527.
It is located on the upper surface side of the main body 1 until the center pin 57 is separated from a. Therefore, the intermediate portion of the wire 22 positioned by the operation of the positioning cylinder 43 engages between the hook 77 and the end face of the sleeve 79, and the drive cylinder 73 is operated and the hook 72 is rotated. The sleeve 79 is moved and held between the hook 77 and the end surface of the sleeve 79. Then, when the driving cylinder 39 is activated to drive the movable plate 37 and the center pin 57 is separated from the bent portion 27n of the wire 27, the second rotating cylinder 67 is activated and the arm 61 is rotated approximately 270 degrees. It can be rotated. ” he corrected. (4) Similarly, page 18, line 10 ~] After the first rotation is performed in the first line, the first rotating cylinder 53 is
is activated, and the middle part of the wire 22 is clamped by the hook 77. Then, the first rotating cylinder 53 is corrected as follows. (5) Similarly, on page 18, lines 15 to 20 (2) ``Rotation of the wire 27 by 270 degrees'' is changed to ``The bending portions 27a are formed at both ends of the wire 27, and the drive When the movable plate 37 is driven by the operation of the cylinder 39, the second rotating cylinder 67 is operated and the gripping arm 61Yf is rotated approximately 270 degrees.

Claims (2)

[Claims] (1) A device main body, a guide rail provided on this main body, a pair of movable bodies provided on this guide rail so as to be freely movable, and a pair of movable bodies provided on this movable body to hold both ends of the wire supplied thereto. and a holding mechanism provided on each of the movable bodies to abut against the end of the wire that is relatively fed out from the holding mechanism as the movable bodies move in a direction toward each other, thereby holding both ends of the wire. a forming roller that is bent into a spiral shape; a guide body that is provided between the forming roller and the holding mechanism and determines the diameter of the helix to be formed into the wire according to the distance between the forming roller and the forming roller; 1. A spring manufacturing apparatus, comprising: a pitch rod provided between the guide body and the forming roller to determine the pitch of the spiral formed by the guide body and the forming roller. (2) The guide body is driven to rotate approximately 90 degrees at the time when the spiral spring portions have been formed on both ends of the wire rod, and the straight portion of the wire rod that continues to the last formed spiral of the spring portion is driven to rotate approximately 90 degrees. 2. The spring manufacturing apparatus according to claim 1, wherein both ends are bent at substantially right angles.