JP2005313178A - Method for manufacturing long size member and manufacturing apparatus used for it - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a manufacturing method of a long size member by which the long size member is efficiently manufactured and which is accurate in the positional relationship of pierced holes and an end part. <P>SOLUTION: By this manufacturing method of the long size member, the holes or notches of a pattern of one member are formed with a press 15 while moving a coil material in the longitudinal direction (S1, S2), the material is temporarily made to stand by with a hoop standing-by device 16 for keeping the material in a loosened state (S3), the coil material is bent into a U-shaped cross section while moving it in the longitudinal direction with a roll forming machine 18 (S4), an obtained semifinished product is cut in the position of the end part of one member while moving it (S5) and a finished product is made. One long size member is worked by two times of working by dividing into the first half and the second half in the press 15. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a method for producing a long member, a production apparatus used therefor, and a mold for a press machine. More specifically, the present invention relates to a manufacturing method of a long member particularly suitable for manufacturing lightweight steel for home use, a manufacturing apparatus for efficiently performing the manufacturing method, and a press mold.

JP 2003-39128 A JP 2003-104592 A Japanese Patent Laid-Open No. 7-80573

  Patent Document 1 discloses an apparatus for manufacturing a thin steel plate for residential use in which an uncoiler, a leveler, an end cutting device, a standby table, a punching (piercing) processing device such as a press, and a roll forming device are arranged in that order. The manufacturing apparatus further includes a non-stationary coupling hole opening device that opens the coupling hole without stopping the flow of the thin steel plate during the working process of the leveler for winding the coil. As a result, since the coupling holes that may be low in accuracy are formed in advance, only high-precision holes need to be manufactured in the press working, and it can be efficiently manufactured.

  Moreover, in this device, while general processing is manufactured on-line, members that require special processing are subjected to special processing offline after end cutting, and then returned to the standby table in various forms. The long building members can be produced in a series of lines. FIG. 2 of Patent Document 1 shows a hoop standby device in which a belt-like thin plate unraveled from an uncoiler is slackened downward to match the timing with intermittent operation at the time of press working. Such a hoop-shaped material delivery device is also disclosed in Patent Document 2 and the like.

  Patent Document 3 discloses a processing method and a processing apparatus in which a plurality of processing units are arranged, one end of a lightweight aluminum mold material such as a window frame is gripped, and various shapes are cut out while being reciprocated with respect to the processing unit. A processing unit is disclosed. This is for processing the same material while sequentially corresponding different processing units. In other words, it is an apparatus similar to a linear turret punch and is suitable for general-purpose processing.

  Since the manufacturing apparatus of Patent Document 1 is punched by a press after being cut once, it is not affected by the previous and subsequent steps and is easy to process. Further, the processing accuracy and relative position of each hole, that is, the pattern accuracy is high. However, since an end positioning device and a feeding device are required, the device becomes complicated. Furthermore, the positional relationship between the cut end and each hole depends on the accuracy of the positioning device and the feeding device. Furthermore, a feeding device to the next roll forming device is also required.

  The apparatus of Patent Document 3 can perform complicated machining in one line and can perform different types of notch machining, but the machining time for one long member becomes longer. Therefore, it is suitable for a general-purpose line for processing various products, but is not suitable for mass production of a small number of long members.

  INDUSTRIAL APPLICABILITY The present invention is suitable for dedicated processing or manufacturing a relatively small number of long members, and a method for manufacturing a long member with high accuracy in the positional relationship between a pierced hole or a cut-out notched portion and an end portion, and the manufacturing method thereof It is a technical problem to provide a manufacturing apparatus and a die for a press machine suitable for the manufacturing process.

  In the manufacturing method of the long member of the present invention, a hole or notch having a pattern for one member is formed while moving the strip-shaped metal sheet in the longitudinal direction, and the strip-shaped metal sheet is moved in the longitudinal direction while moving the strip-shaped metal sheet in the longitudinal direction. The metal sheet is bent at the position of the end of the one member while moving the metal sheet.

  In such a manufacturing method, the holes or notches are intermittently formed by press working, and then waiting in a state of being slackened by a hoop standby device, and the bending is continuously performed by a roll forming machine. preferable. Further, it is more preferable that the hole or notch for the one member is formed by a plurality of press processes, and the holes or notches are sequentially formed in different patterns for each process.

  The apparatus for producing a long member of the present invention includes a press for forming a hole or notch having a pattern for one member on a belt-shaped metal sheet, and a bending line in the longitudinal direction while moving the belt-shaped metal sheet in the longitudinal direction. A roll forming machine for bending, a hoop standby device interposed between the press and the roll forming machine, and a cutting device for cutting at the position of the end of the one member while moving the semi-finished product obtained by bending. It is characterized by having.

  The press die of the present invention includes a common die set installed in a press machine, and a plurality of die units that are detachably attached to the common die set and slidable in the front-rear direction of the press. It is characterized by having. In such a press mold, the mold unit is provided with an upper mold provided with a punch for punching, a lower mold provided with a die that cooperates with the punch, and positions of the upper mold and the lower mold. What is provided with the guide means for aligning is preferable.

  In the manufacturing method of the present invention, the strip-shaped metal sheet is not cut until the bending process is completed, and the continuous state is maintained. Therefore, the feeding device may be simple. For example, if the belt-like sheet is before being cut, it can be fed and driven by pulling it from the downstream side. Furthermore, since cutting can be performed with reference to a hole formed in advance, the relative positional accuracy between the cutting end and the hole can be increased.

  In such a manufacturing method, when the hole or notch is intermittently formed by press working, then waiting in a state of being slackened by a hoop standby device, and continuously performing the bending with a roll forming machine, High-precision hole or notch processing by press molding and efficient bending by a roll forming machine can be performed continuously. That is, in the press working, the strip-shaped metal thin plate is temporarily stopped before the slider (ram) of the press reaches the bottom dead center, and the movement is started again after the processing. Therefore, the strip-shaped thin metal plate moves intermittently. On the other hand, the bending process by the roll forming machine is a continuous process. Therefore, a hoop stand-by device is arranged between the two so that the metal sheet is loosened, and the timing of both is synchronized. Thereby, improvement in manufacturing efficiency and high-precision processing can be achieved at the same time.

  Furthermore, when the hole or notch for the one member is formed by a plurality of press processes, and the holes or notches are sequentially formed in different patterns for each process, than the long member to be manufactured. A short-length mold can be used, and the press has a small processing capability. Furthermore, the processing cycle time can be shortened. Since the intermittent feed time interval is short and the feed length is also short, it is easy to synchronize with the downstream bending process. The manufacturing apparatus of the present invention can efficiently perform the above-described manufacturing method.

  The press mold of the present invention can shorten the setup time by exchanging the entire common die set when changing the mold when changing the type of the long member to be manufactured. On the other hand, at the time of maintenance such as punch exchange or die polishing, only the necessary mold unit can be removed from the common die set, moved to the front side of the press, and lowered by a crane or the like for maintenance. In addition, the mold unit can be replaced with a new one. Therefore, it is possible to respond quickly both when changing the type of product and during maintenance.

  When the mold unit includes an upper mold having a punch for punching, a lower mold having a die that cooperates with the punch, and guide means for aligning the upper mold and the lower mold If the slide of the press is lowered to the bottom dead center and the upper die is removed from the slide, the lower die and the upper die can be handled as an integrated unit. Therefore, even when the upper mold is maintained such as when the punch is broken, the upper mold and the lower mold can be handled as one mold unit by the above procedure.

  Next, embodiments of a method for manufacturing a long member, a manufacturing apparatus, and a press die according to the present invention will be described with reference to the drawings. 1A and 1B are a layout diagram showing an embodiment of the manufacturing apparatus of the present invention and a block diagram showing an embodiment of the manufacturing method, respectively. FIGS. 2A and 2B are main parts showing piercing lines of the manufacturing apparatus, respectively. 3A and 3B are respectively a plan view and a front view of a lower mold for a press mold used in the manufacturing apparatus, and FIGS. 4A and 4B are enlarged cross-sectional views of a main part of the press mold. 5a and 5b are process explanatory views showing the function of the mold and a plan view of the obtained intermediate product. FIGS. 6a and 6b are principal planes showing bending and cutting lines of the manufacturing apparatus of FIG. 1a, respectively. FIGS. 7A and 7B are a plan view and a schematic sectional view showing the action of the cutting device in the manufacturing apparatus of FIG. 1A, and FIGS. 8A and 8B. Is a side view showing a stack form of a schematic side view and finished stack device, respectively, in FIG 1a.

  A manufacturing apparatus (manufacturing line) 10 shown in FIG. 1a is a piercing line (punching line) which is a pre-process comprising an uncoiler 11, a first hoop standby device 12, a leveler 13, a roll feeder 14, a press 15 and a second hoop standby device 16. ) 17, and a bending / cutting line 20, which is a post-process including a fall forming machine 18 and a cutting device 19. A product stacking device 21 is disposed downstream of the cutting device. A punch breakage detection device 22 that detects that predetermined piercing has not been performed is provided downstream of the press 15. A coil yard 23 is disposed on the upstream side of the uncoiler 11, a replacement die yard 24 is disposed in front of the press 15, and a replacement roll yard 25 is provided on the front side of the roll forming machine 18. It has been.

  With such a manufacturing apparatus 10, as shown in FIG. 1b, in the order of the first piercing step S1, the second piercing step S2, the second hoop standby step S3, the roll forming step S4, the traveling cutting step S5, and the stacking step S6. Long members are produced. This manufacturing method is an embodiment of the manufacturing method of the present invention. Hereinafter, the apparatus and operation used in each process will be described.

  The piercing line 17 is substantially the same as a conventionally known piercing line except for the configuration and operation of the mold. As shown in FIGS. 2a and 2b, the uncoiler 11 has an openable / closable drum that supports a coil 26 of steel plate from the inside, a motor that drives the drum to rotate, and a brake means that provides resistance to rotation. It is a device that allows unwinding of the material (strip-shaped metal thin plate, hoop material) 26a. The motor may be stopped when unwinding is allowed and operated only when rewinding. A coil car 27 for supplying the coil 26 to the uncoiler 11 is provided below the uncoiler 11 so as to be able to run in the axial direction of the uncoiler 11. The coil platform of the coil car 27 is configured to be movable up and down by a hydraulic cylinder or the like. The thickness of the coil material 26a is normally about 1.2 mm, 1.6 mm, and 2.3 mm, but 3.2 mm or 4.5 mm can also be used. The coil material is a thin steel plate such as SPCC or SS41, but other materials can also be used.

  The leveler 13 is a device for removing the curl of the coil material 26a in which the roller rows are arranged in a staggered manner so as to sandwich the coil material 26a drawn from the coil 26 from above and below. Between the uncoiler 11 and the leveler 13, the coil material 26 a is maintained in a state where it is slackened downward in an arc shape in order to provide a margin between the slow rotation of the uncoiler 11 and the intermittent feed operation to the press 15. A first hoop standby device 12 is interposed. In this embodiment, it is slackened on the lower side, but may be an up-loop type arranged in an arc shape on the upper side. The first hoop stand-by device 12 includes a sensor for detecting the slack state of the coil material 26a at this portion. When the slack is too much, the rotation of the uncoiler 11 is stopped or slowed, and when the slack is reduced, the rotation starts. Or make it faster.

  The roll feeder 14 is a device that sandwiches a coil material between upper and lower rolls and intermittently feeds the coil material to the press 15 in accordance with the operation of the press 15. The feed amount is usually a fraction of an integer such as 1/2 or 1/3 of the length of the long member to be manufactured because of the relationship with the mold described later. In the case of a building beam or column, the length of the long member may be about 2 m, and in that case, the feed amount may be as relatively large as about 1 m. A variable-feed-type roll feeder can also be used. In this case, the length of the long member is fed by a plurality of times of feeding. Instead of the roll feeder, it is also possible to adopt a gripper feeder that feeds a predetermined length across the coil material and returns it.

  Any press 15 can be used as long as it can be pierced. In FIG. 2b, a C-frame type double crank press having a wide bolster width is employed so that it is suitable for processing a long member and allows easy die replacement. A thing with high rigidity is preferable for piercing. If the piercing process is normal, the stroke may be short. However, since the feed amount of the coil material is relatively large, a certain stroke, for example, a stroke of about 50 to 200 mm is required.

  The mold set in the press 15 is an embodiment of the press mold according to the present invention. As shown in FIGS. 3a and 3b, a plurality of groups (four in this embodiment) are provided in one common die set 28. The mold units 29a to 29d are detachably attached. The common die set 28 includes a lower plate 30, guide bushes 31 fixed to the four corners of the lower plate, an upper plate 32, and guide posts 33 fixed to the four corners. By providing the common die set 28, when changing the type of the long member to be manufactured, the entire mold can be replaced quickly. The number of mold units may be 3 or less or 5 or more.

  Each of the mold units 29a to 29d includes a lower mold 35 that is detachably attached to the lower plate 30, an upper mold 36 that is detachably attached to the upper plate 32, and guide means for aligning the both. I have. In this embodiment, a guide means is constituted by a guide bush 37 attached to the lower die 35 and a guide pin 38 attached to the upper die. The lower die 35 is placed on the lower plate 30 so as to be slidable back and forth. Accordingly, when maintenance of one mold is required, it is not necessary to remove the entire mold from the press, and only the necessary mold units 29a to 29d may be removed for maintenance.

  The lower die 35 includes a die holder 39 and a die 40 having a hole for drilling fixed on the die holder. The die holder 39 is usually provided with an opening or scrap chute for dropping scrap, and the scrap (dropping) is discharged by a belt conveyor or the like attached below the bolster. Further, the guide bush 37 is provided on the upper surface of the die 40 or the die holder 39. Instead of the guide bush, a hole for fitting with the guide pin 38 may be formed.

  The upper die 36 is punched downward by a punch holder 41, a punch 42 held by the punch holder, a spring material 43 such as urethane rubber disposed around the punch, and a spring or the like. And a suspended stripper 44. Further, in this embodiment, as shown in FIGS. 4a and 4b, the specific punch 42a is held so as to be movable up and down, and is movable between a position where the upper end of the punch 42a is supported and a position where it is not supported. The backup plate 45 is provided, and a drive mechanism that moves the backup plate in accordance with a signal from the control unit. An air cylinder 46 or the like is used as the drive mechanism. The air cylinder 46 is disposed on the front surface or the back surface of the punch holder 41 of the upper die 36 (see FIG. 3a).

  In the above-described mold units 29a to 29d, when the air cylinder 46 is not operated (FIG. 4a), the backup plate 45 supports the upper end of the punch 42a. And piercing can be performed in cooperation with the hole of the die 40. In a state where the backup plate 45 is moved to a position away from the upper end of the punch 42a (see FIG. 4b), even if the lower end of the punch 42a hits the coil material 26a when the press is pressed, the upper end is not supported and moves up (see FIG. 4b). (Refer to the imaginary line.) Therefore, the presence / absence of perforation can be switched by sending a signal for expanding / contracting the air cylinder 46 from the control unit of the press 15 or the like.

  In order to forcibly return the raised punch 42a, inclined surfaces 47 and 48 for biasing the punch 42a downward by a cam action may be formed at the lower end of the backup plate 45 and the upper end of the punch 42a. Instead of the inclined surface, a spring that urges the punch 42a downward by engaging with a flange formed in the middle of the punch 42a may be provided. Further, an inclined cam groove is formed in the backup plate 45, and a roller or the like that engages with the cam groove is provided on the punch 42a, so that the punch 42a can be forcibly raised and lowered by expansion and contraction of the air cylinder 46. The expansion / contraction control of the air cylinder 46 uses a conventionally known electromagnetic valve or the like.

  As shown in FIG. 5a, for example, the press mold configured as described above includes punch groups 49 and 50 for switching the presence or absence of perforation in the first mold unit 29a and the fourth mold unit 29d. At the same time, control for enabling the punching function alternately is performed such that when the punching function of one punch group 49 is enabled, the other punching function is disabled. Then, as shown in FIG. 5a, when the range R1 corresponding to the front half of the long member is put on the mold and pressed, the punch group 50 of the fourth mold unit is used to process the first mold unit. The punch group 49 is not processed.

  Next, while the press slide is moving up, the coil material 26a is advanced in the direction of arrow F at a feed pitch corresponding to half the length of the long member, and the rear half of the long member is placed on the mold. Processing is performed by the punch group 49 of one mold unit 29a. Then, by repeating the above-described two sets of press processing, it is possible to perform processing for one elongate member in which piercing is performed on each of the front end portion and the rear end portion as shown in FIG. 4b. In the above description, for the sake of simplicity, a common punch group for punching in both the front half and the rear half is omitted. These punch groups do not require the lifting / lowering function of the punches of FIGS. 4a and 4b. In this way, if the front half and the rear half are processed in two steps, a long long member can be processed even when the press processing capability and the bolster length (width) are small. In addition to dividing into two times, it is possible to process in three or four times or more. Furthermore, it is also possible to perform mixed production of two or more types of long members having different drilling positions or numbers. If the roll feeder 14 in FIG. 1b is of a variable feed amount, two or more types of processing in which the length of the long member to be manufactured is different are possible.

  The coil material 26a that has been pressed as described above is detected by the punch breakage detection device 22 in FIG. The punch breakage detection device 22 controls the detection timing in accordance with the travel / stop of a sensor that detects the presence or absence of a through-hole, for example, a detection sensor such as a transmissive or reflective optical sensor, or a magnetic sensor. Mechanism. The detection timing may be a method of detecting the press-processed range (front half and rear half) at a time when the coil material 26a is stopped, or any of the methods of detecting in order while traveling. Good. In any case, when it is detected that piercing is not performed at a required position, it is determined that the punch is broken and the press 15 is stopped in an emergency. Thereby, generation | occurrence | production of inferior goods and damages, such as a metal mold | die, can be stopped hard.

  In the case of a detection device that detects in a stopped state, a plurality of sensors corresponding to positions to be pierced in the first half part and the second half part are arranged. In other words, both piercing positions are arranged in a superimposed form. Then, the pattern for detecting the first half part and the pattern for detecting the second half part are switched based on a signal from the control unit of the press and the like are determined. When exchanging the mold, the sensor group is exchanged together and the program for judging the presence or absence of piercing is switched.

  In the case of a detection device that detects while running, for example, a large number of sensors are arranged in a line at a small pitch, and the presence or absence of piercing is sequentially determined by a control method similar to that of an image reading device of a facsimile or digital copier. In that case, for example, a reference position is detected using a pilot hole or the like, and the presence or absence of piercing is detected from the distance traveled after the reference position is detected. In this case, it is only necessary to switch the program to be judged for the replacement of the mold.

  The coil material 26a that has passed through the punch breakage detection device 22 is sent to the second hoop standby device 16 in FIG. 2b. The second hoop stand-by device 16 can hold the coil material (hoop material) 26a in a curved state so as to protrude downward, and is less slack from the state T1 that is largely slackened as indicated by an imaginary line. Hold in the range of state T2. When the slack becomes less than the set lower limit and the tension of the coil material 26a becomes too strong, the operation of the downstream line, that is, the roll forming machine is stopped, and the slack is recovered. On the contrary, when the slackness becomes larger than the set upper limit, the operation of the upstream line, that is, the press 15 is stopped, and the slackness is awaited.

  As a method for detecting the amount of slack, for example, a method of detecting the position of the coil material 26a with an optical sensor is employed. Further, it can be detected by a dancer arm having a roller in contact with the surface of the coil material 26a at the tip and an angle detection sensor at the base end. 2b is a conventionally known guide table for guiding the tip of the coil material 26a when passing through the second hoop standby device 1, and is provided so as to be rotatable with respect to the frame 53. A drive device such as an air cylinder that is selectively driven between a horizontally disposed state and a state in which the coil member 26a is folded downward so as not to interfere with the coil member 26a. Yes.

  The coil material 26a coming out of the second hoop standby device 16 is bent and cut by a bending / cutting line 20 shown in FIG. 6a. As the roll forming machine 18 shown in FIG. 6a, a conventionally known machine can be used, and a roller for bending the flat coil material 26a as shown in the first step S41 of FIG. 6B downward as in the second step S42. It includes a set of rollers, and further includes a roller set that bends in the order of the third step S43, the fourth step 44, and the like. And finally, as shown in 4th process S44, the semi-finished product 54 used as the U-shaped profile opened downward is obtained. The number of processes, the number of roller sets, and the like are selected appropriately depending on the coil material and plate pressure.

  The semi-finished product 54 is then cut at the end of the long member to be manufactured by the cutting device 19 shown in FIG. 7a. Since the semi-finished product 54 flows in the direction of the arrow F, a cutting device 19 that cuts while moving with the semi-finished product 54 is employed. In this embodiment, the cutting device 19 includes a clamping mechanism 55 that clamps / opens the semi-finished product 54 and a cutter 56 that moves together with the clamping mechanism. Reference numeral 57 is an air cylinder for operating the clamp mechanism, and reference numeral 58 is a hydraulic cylinder for operating the cutter 56.

  The cutting device 19 determines a cutting position with reference to, for example, the pilot hole 60, operates the air cylinder 57, and clamps (first step S51). As a result, the cutting device 19 travels with the semi-finished product 54. At that time, a pilot pin may be fitted into the pilot hole 60. Next, the hydraulic cylinder 58 is operated and the cutter 56 cuts. After cutting, the air cylinder 57 is actuated to release the clamp and return to the original position before the next cutting position comes. The drive for returning the cutting device 19 is performed by a separate air cylinder or a motor.

  The semi-finished product having a U-shaped cross section is preferably cut in an oblique direction as shown in FIG. By completing the cutting, a long product 61 is obtained. The finished product 61 can be pushed by the semi-finished product 54 before cutting, but usually the next stack is moved at a speed higher than the moving speed of the semi-finished product by a roller conveyor with rotation drive (see reference numeral 63 in FIG. 8). Transport to the device (reference numeral 21 in FIG. 8).

  For example, as shown in FIG. 8 a, the stacking device 21 includes an arm 64 that pushes out (or pays out) a finished product on the roller conveyor 63 sideways, and a reversing device 65 that reverses and supports the pushed finished product 61. A pair of completed transport stands 66, a lifting transport arm 67 for overlapping the next finished product 61a pushed sideways so as to mesh with the previous finished product 61 inverted, and The push device 68 further moves the product in the horizontal direction, and the alignment table 69 for sequentially stacking them.

  When the U-shaped finished product 61 opened upward and the U-shaped finished product 61a opened downward are combined as described above, a square pipe is formed as shown in FIG. become. The alignment table 68 includes a table that moves up and down and back and forth, and is arranged in a form that is easy to pack, such as six sets in one step and five steps in the vertical direction. The aligned finished products 61 are fastened together with a known belt fastening machine incorporated in the aligning device 68 and stored in a warehouse or transported to a truck yard. In addition, when welding a joint plate etc. further to the edge part of a finished product, it conveys to the next welding line.

  In the bending process by the roll forming machine, both ends of the coil material 26a are bent downward, but can also be bent upward. However, in the piercing process, since the punch is usually passed downward, a cutting burr is generated downward. Therefore, it is preferable to bend both ends of the coil material 26a downward to make the upper surface the outer surface. In the above embodiment, the U-shaped semi-finished product is cut at a time, but the left and right halves may be cut twice.

1a and 1b are a layout diagram showing an embodiment of the manufacturing apparatus of the present invention and a block diagram showing an embodiment of the manufacturing method of the present invention, respectively. 2a and 2b are a main part schematic plan view and a front view showing a piercing line of the manufacturing apparatus, respectively. 3a and 3b are a lower plan view and a front view of a press die used in the manufacturing apparatus, respectively. 4a and 4b are enlarged sectional views of the main part of the pressing mold. FIG. 5a and FIG. 5b are process explanatory views showing the operation of the mold and a plan view of the obtained intermediate product. 6a and 6b are a plan view of a main part showing a bending / cutting line of the manufacturing apparatus of FIG. 7a and 7b are a plan view and a schematic sectional view showing the operation of the cutting device in the manufacturing apparatus of FIG. 1a. FIGS. 8a and 8b are a schematic side view of the stacking apparatus of FIG. 1a and a side view showing the stack form of the finished product, respectively.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Manufacturing apparatus 11 Uncoiler 12 1st hoop standby apparatus 13 Leveler 14 Roll feeder 15 Press 16 2nd hoop standby apparatus 17 Piercing line 18 Roll forming machine 19 Cutting apparatus 20 Bending / cutting line 21 Stack apparatus 22 Punch breakage detection apparatus 23 Coil yard 24 Mold Yard 25 Replacement Roll Yard S1 First Piercing Step S2 Second Piercing Step S3 Second Hoop Waiting Step S4 Roll Forming Step S5 Travel Cutting Step S6 Stacking Step 26 Coil 26a Coil Material (Strip Metal Sheet, Hoop Material) )
27 Coil car 28 Common die sets 29a to d Die unit 30 Lower plate 31 Guide bush 32 Upper plate 33 Guide post 35 Lower die 36 Upper die 37 Guide bush 38 Guide pin 39 Die holder 40 Die 41 Punch holder 42 Punch 42a Specific punch 43 Spring material 44 Stripper 45 Backup plate 46 Air cylinder 47, 48 Inclined surface 49, 50 Punch group R1 Range corresponding to front half R2 Range corresponding to rear half T1, T2 Relaxed state 52 Guide tables S41 to S44 Bending process 54 Semi-finished product F Flow direction 55 Clamp mechanism 56 Cutter 57 Air cylinder 58 Hydraulic cylinder 60 Pilot hole 61 Finished product 63 Roller conveyor 64 Arm 65 Reverse device 66 Carriage stand 67 Lifting transport arm 68 Push device 69 Adjusting Table

Claims (6)

While moving the strip-shaped metal sheet in the longitudinal direction, form a hole or notch of the pattern for one member,
Folding the belt-shaped metal sheet along the longitudinal fold line while moving in the longitudinal direction,
Subsequently, the manufacturing method of the elongate member cut | disconnected in the position of the edge part for the said one member, moving the obtained semi-finished product.   The manufacturing method according to claim 1, wherein the holes or notches are formed intermittently by press working, and then the standby is performed in a state of being slackened by a hoop standby device, and the bending is continuously performed by a roll forming machine.   The manufacturing method according to claim 2, wherein the hole or notch for the one member is formed by a plurality of press workings, and the holes or notches are sequentially formed in different patterns for each processing. A press for forming a hole or notch of a pattern for one member on a belt-shaped metal sheet;
A roll forming machine that folds the belt-shaped metal sheet along the longitudinal fold line while moving the metal sheet in the longitudinal direction;
A long member comprising a hoop standby device interposed between the press and a roll forming machine, and a cutting device for cutting at a position of an end of the one member while moving a semi-finished product obtained by bending. manufacturing device.   A press die comprising a common die set installed in a press machine and a plurality of die units which are detachably attached to the common die set and slidable in the front-rear direction of the press.   The mold unit includes an upper die having a punch for punching, a lower die having a die that cooperates with the punch, and guide means for aligning the upper die and the lower die. Item 6. A press mold according to Item 5.