JP5563123B2 - Roll type unit - Google Patents

Description

  The present invention relates to a roll type unit suitable for easily setting a position and a gap of a roll mold for forming a metal plate while rotating it into a desired shape.

  2. Description of the Related Art Conventionally, a roll forming machine has a pair of drive side roll stands on the side where a motor is disposed and rotational driving force is input from the motor, and a pair of operation side roll stands on the operating side. A roll shaft parallel to each other between the roll stands and a roll mold member attached to the roll shaft and forming a desired shape with a material to be molded interposed therebetween.

  In order to perform efficient roll forming, a double roll forming machine that performs roll forming by arranging such roll forming machines in series is used.

  In order to effectively install this double roll forming machine, a drive shaft driven by one motor is disposed between the roll stand rows of the two roll forming machines, and each roll shaft of each roll stand row is arranged. Patent Document 1 discloses a technique of a double roll forming machine devised so as to operate optimally.

  Further, in the roll forming machine, it is necessary to replace the roll type member when the shape to be formed is different or the thickness of the material to be formed is different even if the shape to be formed is the same. In this case, the required number of roll-type members prepared are attached and removed as necessary.

  The work of exchanging the roll-type member already attached to the existing roll shaft and the required number of roll-type members prepared must be performed with the operation-side roll stand removed, so the work is complicated. And it took time.

  Furthermore, a skillful technique for adjusting the gap between the roll-type members attached to the parallel roll shafts is required, and the work is performed at the site where the roll forming machine is installed.

  And in order to perform such an operation | work efficiently, the technique of the cassette-type roll forming machine by which the several roll stand of patent document 2 was set as the cassette was disclosed.

JP 05-269528 A JP 09-225538 A

  However, the problem with the double roll forming machine according to Patent Document 1 is that when adding the same number of roll stands as the number of roll stands that the conventional roll forming machine has, the drive source is reduced by arranging the roll stands in duplicate. However, the area where the double roll forming machine is installed is almost doubled.

  In addition, since a double roll forming machine is used, both the roll stand and the roll mold member are doubled, so that there is a problem that the equipment cost is almost doubled accordingly.

  Furthermore, in the cassette type roll forming machine according to Patent Document 2, when the roll is changed in accordance with the change of the molding type, the roll change at the site where the roll forming machine is installed can be changed for each stand unit. The roll can be exchanged quickly.

  However, the method of newly installing a cassette every time the type of molding is changed has a problem that it becomes expensive compared with the case where only the roll type member is replaced because the motor and the members accompanying it become new. Furthermore, there is a problem that a place is taken for storage. This is a problem that occurs every time various parts are produced by roll forming.

  Therefore, although it is conceivable to replace and use only the roll type member of the existing cassette, the roll type member already attached to the existing roll shafts of a plurality of roll stands provided in the stand unit of the cassette The work to replace the prepared roll type members is to disassemble a plurality of roll stands of the stand unit, remove the roll type members already attached, and then to several to a dozen on one roll shaft Since a single roll-type member has to be attached, the work is complicated and time-consuming, and the conventional problems such as being unable to be easily reproduced in the state previously adjusted, and the parallel roll shaft were attached. There is a problem that it is difficult to solve the conventional problem that a skillful technique is required for adjusting the gap between the roll-type members and this cannot be easily reproduced.

  Furthermore, the method of using the roll shaft while replacing another roll mold member with one existing roll shaft is the same as when the other roll mold member is attached to the existing roll shaft. There is also a problem that play is generated between the mold members due to variations in the finish of the existing roll shaft and other roll mold members.

  Furthermore, several to a dozen or more roll-type members removed from the roll shaft are lost because they are separated, and there is a storage problem that they are mixed with other roll-type members during storage.

  The present invention has been made to solve the above-described problems, and includes a roll shaft, a roll mold member, and two rotation holding members that rotate and hold the roll shaft adjacent to the roll mold member. From the upper side of the roll stand, it is possible to mount the roll stand from the upper side by making the roll type unit from the upper side with respect to the mutual positions of the roll type members and the gaps facing each other in the plurality of mounted roll type units. It is an object of the present invention to provide a roll type unit in which the desired position and gap of the roll type member can be easily set by positioning and abutting the rotation holding members of the roll type unit to which the roll type unit is mounted.

In order to achieve the above object, a roll type unit according to claim 1 is provided with first and third roll stands provided with positioning holding parts having an insertion part opened upward and a holding part having an insertion part opened upward. Two or more roll-type units that are mounted on the second and fourth roll stands and roll-form a metal plate , and have a first reference step in contact with the drive connecting portion and the drive connecting portion at one end. A disk-like shape provided with a first abutting circumferential portion that rotates and holds the first shaft body and is provided adjacent to the drive connecting portion and is positioned and held on the first and third roll stands from above. A first roll holding member, a first roll mold fixedly locked to the first shaft body adjacent to the first rotation holding member, and forming a metal plate into a desired shape, and the first shaft While holding the body in rotation, the first row A disk-shaped second rotation holding member provided adjacent to the mold and provided with a second contact circumferential portion mounted and held on the second and fourth roll stands from above is unitized, and unit unit A first roll type unit that is handled independently at the same time, and a second shaft body that is disposed in parallel with the first shaft body and has a second reference step near the end , A disc-shaped third rotation holding member that is mounted and positioned on the first and third roll stands from above and has a third abutting circumferential portion that abuts on the first abutting circumferential portion; A second roll mold that is fixedly locked to a shaft body and jointly forms the metal plate in a desired shape at a position facing the first roll mold; and the second shaft body is rotated and held, and Mounted and held on the second and fourth roll stands from above, 2 unitized a disk-shaped fourth pivot holding member with abutting circumferential portion and a fourth abutment circumference which abuts, and a second roll-type units to be handled independently in units, In the first roll type unit, the first rotation holding member is inserted through the first shaft body until the first rotation holding member comes into contact with the first reference step, and the first roll type and the second rotation holding member are inserted into the first shaft. The first rotation holding member, the first roll type and the second rotation holding member in the first shaft body are positioned on the basis of the first reference step, and the second roll type unit The third rotation holding member is inserted through the second shaft body until it abuts on the second reference step, and the second roll mold and the fourth rotation holding member are inserted through the second shaft body, so that the second reference step is formed. As a reference, the third rotation holding member, the second roll type and the fourth in the second shaft body Positioning of the rotation holding member is performed, and the first roll type unit and the second roll type unit are respectively mounted on the first and third roll stands and the second and fourth roll stands from above. As a result, the mutual positions of the first roll type and the second roll type are determined, and the contact between the first contact circumferential portion and the third contact circumferential portion and the second contact circle are determined by this mounting. The gap between the first roll mold and the second roll mold facing each other is set to a desired gap by abutting the circumferential portion with the fourth abutting circumferential portion.

  According to the roll type unit according to claim 1, the roll type unit includes first and third roll stands provided with positioning holding parts having an insertion part opened upward, and a holding part having an insertion part opened upward. Two or more roll stands that are mounted on a second and fourth roll stand and roll-form a metal plate, and rotate and hold a first shaft body that includes a drive connecting portion at one end and is driven. A disc-shaped first rotation holding member that is provided adjacent to the coupling portion and includes a first contact circumferential portion that is mounted on the first and third roll stands from above and is positioned and held, and a first rotation A first roll mold that is fixedly locked to the first shaft body adjacent to the holding member, and that forms the metal plate into a desired shape, and is provided adjacent to the first roll mold while rotating and holding the first shaft body. Above the second and fourth roll stands A disc-shaped second rotation holding member having a second abutting circumferential portion that is mounted and held as a unit, a first roll type unit that is handled independently in units, a first shaft body, A third abutting circumference that rotates and holds the second shaft body arranged in parallel and is positioned and held on the first and third roll stands from above and abutted against the first abutting circumferential portion. A disk-shaped third rotation holding member having a portion, a second roll mold fixedly locked to the second shaft body, and forming a metal plate in a desired shape jointly at a position facing the first roll mold; The second shaft body is rotated and held, and is mounted and held on the second and fourth roll stands from above, and has a disk-like shape having a fourth contact circumferential portion that contacts the second contact circumferential portion. The 4th rotation holding member is unitized and the 2nd roll type unit handled independently in unit unit. The first roll type unit and the second roll type unit are mounted on the first and third roll stands and the second and fourth roll stands from above as unit units, respectively. The positions of the mold and the second roll mold are determined, the contact between the first contact circumferential portion and the third contact circumferential portion by the mounting, and the second contact circumferential portion and the fourth contact circumferential portion. The gap between the first roll type and the second roll type was made to be a desired gap by the contact of.

  As a result, the replacement of the roll type unit can be performed independently for each unit of the first roll type unit and the second roll type unit, resulting in a roll forming machine that replaces and installs only the piece member on the roll shaft. The trouble can be solved and the replacement work can be performed in a short time.

In addition, the first roll type unit and the second roll type unit are mounted on the first and third roll stands and the second and fourth roll stands from above, respectively, so that the first roll type and the second roll unit are provided in units. The mutual positions of the molds are determined, and the contact between the first contact circumferential portion and the third contact circumferential portion and the contact between the second contact circumferential portion and the fourth contact circumferential portion are determined by this mounting. As a result, the gap between the first roll mold and the second roll mold facing each other can be set to a desired gap, so that adjustment of the positions and gaps of the first roll mold and the second roll mold can be eliminated.
That is, the reproducibility can be improved every time the roll unit is replaced.

The members mounted through the first shaft body of the first roll type unit and the second shaft body of the second roll type unit are centered on the axis center of the first shaft body and the shaft center of the second shaft body. It is comprised by each shape or combination of the same disk, cylinder, and cone.
Therefore, all the side surfaces rotated 360 degrees about the first roll type unit and the second roll type unit have the same shape and the directionality can be eliminated.
That is, since it is not necessary to recognize the direction when the first roll type unit and the second roll type unit are attached to the first and third roll stands and the second and fourth roll stands, the attaching operation can be simplified. it can.

Further, when the first shaft body of the first roll type unit and the second shaft body of the second roll type unit are assembled and assembled with the respective members, the first shaft body and the second shaft body are left standing and the respective members are kept standing. Can be installed.
Thereby, since it can be stored in a predetermined position by its own weight, assembly can be easily performed in a short time.
Furthermore, the cost of the roll type unit can be reduced by simplifying the structure by combining the shape, the combination of the disc, cylinder, and cone of the roll type unit, as well as by simplifying and opening the assembly.

  Further, the first and second roll types can be obtained by unitizing the first and second roll types, and making the first and second roll type units non-directional by the configuration of the discs, cylinders, and cones, or combinations thereof. Unit replacement can be performed by standardized operations using a dedicated automatic machine.

Further, the unitized first roll type unit and second roll type unit are not disassembled and can be stored as units.
For this reason, it is possible to eliminate a situation in which the piece member is separated at the time of storage and lost or mixed with other piece members at the time of storage.

It is a top view of the roll forming apparatus according to the present embodiment. It is a side view of a roll forming apparatus. It is a unit assembly figure of the united 1st roll type unit. It is a unit assembly figure of the united 2nd roll type unit. It is a unit assembly figure of the united 3rd roll type | mold unit. It is a top view explaining the basic composition of the 1st roll forming machine and the 2nd roll forming machine. It is the side view seen from the 1st roll forming machine side. It is a side view of the roll forming machine showing a state where the roll type unit is ready for mounting. It is a side view of the roll forming machine which shows the state which mounted | wore with the 2nd roll type | mold unit. FIG. 10 is a side view of the roll forming machine showing a state where the first roll type unit is mounted in FIG. 9. It is a side view of the roll forming machine which shows the state which mounted | wore the 3rd roll type | mold unit in FIG. It is a side view of the roll forming machine which shows the state where operation preparation was completed. It is explanatory drawing explaining each relationship of the 2nd roll type | mold unit with which the 1st roll molding machine was mounted | worn, a 1st roll type | mold unit, and a 3rd roll type | mold unit. It is sectional drawing (dish shape) of the molded article shape | molded by the formation process of an outward path | route. It is sectional drawing (bowl shape) of the molded article shape | molded by the formation process of the outward path | route. FIG. 6 is a cross-sectional view in which a bowl-shaped cross-sectional molded product is stacked on a dish-shaped cross-sectional molded product before forming the return path. It is sectional drawing of the molded product which piled up the dish-shaped cross-section molded product and the pot-shaped cross-section molded product in the bag shape by the molding process of the return path.

Hereinafter, an embodiment in which the present invention is applied to a roll forming apparatus will be described in detail with reference to the drawings.
First, a schematic configuration of the roll forming apparatus 1 according to the present embodiment will be described with reference to FIGS. 1 and 2. Here, FIG. 1 is a top view of the roll forming apparatus according to the present embodiment, and FIG. 2 is a side view of the roll forming apparatus.

  As shown in FIGS. 1 and 2, the roll forming apparatus 1 includes a forming machine mounting table 2, a motor 3 mounted and fixed on the forming machine mounting table 2, eight speed reducers 4, and first roll stands 5 to 5. It comprises a base 23 on which an 18-roll stand 22 is erected.

  The first roll stand 5 to the fourth roll stand 8 constitute the first roll forming machine 24, and the fifth roll stand 9 and the sixth roll stand 10 are shared by sharing the third roll stand 7 and the fourth roll stand 8. Thus, the second roll forming machine 25 is configured.

  As described above, the first roll forming machine 24 to the eighth roll forming machine 31 are provided on the base 23 while sharing adjacent roll stands.

  A first height adjustment block 32 is placed and fixed on the base 23 between the first roll stand 5 and the third roll stand 7 of the first roll forming machine 24, and the first height adjustment is performed. A first contact reference surface 33 is disposed on the block 32 (see FIGS. 6 and 7).

Similarly, a second height adjustment block 34 is placed and fixed on the base 23 between the second roll stand 6 and the fourth roll stand 8 of the first roll forming machine 24, and the second height stand 34 has a second height. A second contact reference surface 35 is disposed on the adjustment block 34.
These members are also provided in the second roll forming machine 25 to the eighth roll forming machine 31 in the same manner.

  The first roll molding machine 24 includes a first roll mold unit 36 and a second roll mold unit, which will be described later, in a space formed by the first roll stand 5 to the fourth roll stand 8 of the first roll molding machine 24. 37, the third roll type unit 38, the second roll type unit 37, the first roll type unit 36, and the third roll type unit 38 are inserted in this order, and the first contact reference surface 33 and the second contact reference unit are inserted. With reference to the surface 35, each roll type unit is mounted parallel to the horizontal.

  Further, the first fixed holding plate 40 is locked to the upper ends of the first roll stand 5 and the third roll stand 7 of the first roll forming machine 24 by two holding plate fixing screws 39, and A first unit fixing screw 41 is attached to the fixed holding plate 40.

  Similarly, the second fixed holding plate 42 is locked to the upper ends of the second roll stand 6 and the fourth roll stand 8 of the first roll forming machine 24 by two holding plate fixing screws 39. A second unit fixing screw 43 is attached to the two fixing holding plate 42.

  The second roll type unit 37, the first roll type unit 36, and the third roll type unit 38 attached to the first roll forming machine 24 are first connected by the first unit fixing screw 41 and the second unit fixing screw 43. It is fixed to the roll forming machine 24.

  Each of the eight speed reducers 4 is connected by a connecting shaft 44 and is connected to a motor 3 that is a drive source.

  Furthermore, each of the eight speed reducers 4 is provided with a rotation transmission shaft 45 that expands and contracts, and a driving force transmission clutch gear 46 is provided at the tip thereof.

  Therefore, when the first roll forming machine 24 is operated, a driving force passive clutch gear 47 (described later) provided in the first roll type unit 36 meshes with the driving force transmission clutch gear 46 to reduce the driving force of the motor 3 to the first. It is transmitted to the roll forming machine 24 (see FIGS. 11 and 12).

  In addition, each roll type | mold unit with which the 1st roll forming machine 24 thru | or the 8th roll forming machine 31 was mounted | worn has the substantially same structure, and only the type | mold part which shape | molds a metal plate differs with each roll forming machine. There is only.

  Therefore, also in the second roll forming machine 25 to the eighth roll forming machine 31, the driving force passive clutch gear 47 provided in each roll unit engages with each driving force transmission clutch gear 46 to drive the driving force of the motor 3. Is transmitted to the second roll forming machine 25 to the eighth roll forming machine 31.

  The roll stand on the side of the driving force passive clutch gear 47 is reinforced by a first reinforcing plate 48 screwed to the roll stand by a screw (not shown), and the roll stand on the side opposite to the driving force passive clutch gear 47 is not shown. Reinforced by a second reinforcing plate 49 screwed to the roll stand by screws.

Next, the 1st roll type | mold unit 36, the 2nd roll type | mold unit 37, and the 3rd roll type | mold unit 38 are demonstrated in detail based on FIG. 3 thru | or FIG.
3 is a unit assembly diagram of the unitized first roll type unit, FIG. 4 is a unit assembly diagram of the unitized second roll type unit, and FIG. 5 is a unitized third roll. It is a unit assembly drawing of a mold unit.

  Further, as described above, the respective roll mold units mounted on the first roll forming machine 24 to the eighth roll forming machine 31 have substantially the same configuration, and only the mold portion for forming the metal plate has each. Since only the roll forming machine is different, in the future, the first roll type unit 36, the second roll type unit 37, and the third roll type unit 38 mounted on the first roll forming machine 24 will be replaced with other roll types. As a representative of the unit, description of other roll forming machines and roll type units mounted on other roll forming machines will be omitted.

First, the structure of the 1st roll type | mold unit 36 is demonstrated based on FIG.
As shown in FIG. 3, a driving force passive clutch gear 47 to be described later is attached to the right side of the first shaft head 51 of the first shaft body 50 that becomes the core of the first roll type unit 36.

  On the left side of the first shaft head 51, a first ball bearing retainer R52 and a first ball bearing retainer L53 are attached to both sides, and a first zero set collar 55 having a first contact circumferential portion 54 is provided. The 1st rotation holding member 56 which consists of is arrange | positioned.

  Furthermore, on the left side of the first rotation holding member 56, a first roll mold 60 including a first metal plate forming portion 58 and a second metal plate forming portion 59 is disposed with a first adjustment collar 57 interposed therebetween. Yes.

  Furthermore, on the left side of the first roll mold 60, a second roll mold 63 including a third metal plate forming portion 62 is disposed with a first space collar 61 interposed therebetween.

  Further, on the left side of the second roll die 63, a second zero set collar 67 having a second contact bearing circumferential portion 66 sandwiched between a second ball bearing pressing collar 64 and a first hard lock nut R65 is provided. A rotation holding member 68 is disposed, and a second ball bearing L70 and a second ball bearing R71 are disposed on the left and right sides of the second bearing collar 69 inside the second zero set collar 67.

  The respective members are fastened by the first hard lock nut R65 disposed on the left side of the second rotation holding member 68, and the first hard lock nut L72 disposed on the left side of the first hard lock nut R65. The loosening is prevented by.

Here, an internal configuration of the first zero set collar 55 constituting the first rotation holding member 56 will be described.
Inside the first zero set collar 55, a first ball bearing L74 and a first ball bearing R75 are arranged on the left and right sides of the first bearing collar 73. After the grease is applied to each ball bearing, the first zero set collar 55 By fixing the first ball bearing pressing metal L53 and the first ball bearing pressing metal R52 to the left and right side surfaces of the set collar 55 with the pressing metal fixing screws 76, the first zero set collar 55 is fixed.

  Further, in order to prevent leakage of the above-mentioned lubricated grease, a first oil seal R77 is attached to the first ball bearing retainer R52, and a first oil seal L78 is disposed on the first ball bearing retainer L53. Is attached.

  In the first roll type unit 36 configured in this way, the first zero set collar 55 having the first contact circumferential portion 54 of the first rotation holding member 56 is the first roll stand 5 and the third roll stand 7. The first zero-set collar 55 having the first abutting circumferential portion 54 of the first rotation holding member 56 is mounted between the first zero-set collar 55 and the reference of the position with respect to the first roll forming machine 24 and the first roll mold unit 36. It becomes.

  Therefore, the position of the first roll mold unit 36 is determined with respect to the first roll mold 60, the second roll mold 63, and the second rotation holding member 68 where the positional relationship with the first rotation holding member 56 is important. explain.

First, the position of the first rotation holding member 56 in the first roll type unit 36 will be described.
A first reference step 79 serving as a reference for the first shaft body 50 is provided near the left side of the first shaft head 51 of the first shaft body 50, and the right side of the first ball bearing R75 is in contact therewith.

  Further, the first bearing collar 73 and the first ball bearing L74 are disposed, and the left side of the first ball bearing L74 is pressed by the first reference collar 80, so that the first shaft step 50 has a first reference step 79 with respect to the first reference step 79. The position of the one rotation holding member 56 is determined, and the position of the first zero set collar 55 having the first contact circumferential portion 54 is determined.

Next, the position of the first roll mold 60 will be described.
The first roll mold 60 is disposed on the left side of the first reference collar 80 with a first adjustment collar 57 that adjusts the position of the first roll mold 60 from the first reference step 79 to a predetermined position. Has been. By adjusting the width of the first adjustment collar 57, the desired position of the first roll mold 60 with respect to the first reference step 79 of the first shaft body 50 is determined.

Next, the position of the second roll mold 63 will be described.
The second roll mold 63 is disposed on the left side of the first reference collar 80 with a first space collar 61 that adjusts the position of the second roll mold 63 from the first reference step 79 to a predetermined position. Has been. By adjusting the width of the first space collar 61, a desired position of the second roll mold 63 with respect to the first reference step 79 of the first shaft body 50 is determined.

Then, the position of the second rotation holding member 68 will be described.
On the left side of the second roll mold 63 described above, a second rotation holding member 68 including a second zero set collar 67 having a second contact circumferential portion 66 with the second ball bearing holding collar 64 interposed therebetween is disposed. ing.

  The second ball bearing pressing collar 64 has a function of adjusting the position of the second rotation holding member 68 from the first reference step 79 to a predetermined position by adjusting the width and pressing the second ball bearing R71.

  Further, in the second zero set collar 67, a second ball bearing L70 and a second ball bearing R71 are arranged on the left and right sides of the second bearing collar 69, and are arranged on the left side of the second ball bearing L70. It is fixed inside the second zero set collar 67 by the first hard lock nut R65.

  Thereby, the position of the second rotation holding member 68 with respect to the first reference step 79 of the first shaft body 50 is determined, and the desired position of the second zero set collar 67 having the second contact circumferential portion 66 is determined. By fastening the first hard lock nut R65 and the first hard lock nut L72, the first rotation holding member 56, the first roll mold 60, and the second roll mold 63 with respect to the first reference step 79 of the first shaft body 50 are obtained. The position of the second rotation holding member 68 is fixed.

Here, the assembly of the 1st roll type | mold unit 36 comprised in this way is demonstrated based on FIG.
By the way, the first oil seal R77, the first ball bearing retainer R52, the first ball bearing R75, the first zero set collar 55, the first bearing collar 73, the first ball bearing L74, the first ball bearing retainer L53, the first The first rotation holding member 56 constituted by the 1 oil seal L78 and the presser fitting fixing screw 76 can be made into one assembled part in advance if it is screwed by the presser fixture fixing screw 76.

Therefore, the assembly of the first rotation holding member 56 in a separate process will be described.
First, the first zero set collar 55 is placed horizontally with the surface where the hole for passing the first shaft body 50 is opened upward. Subsequently, the first ball bearing R75 pre-greased with grease is inserted into the first zero set collar 55 from above. Then, the lid is covered with the first ball bearing holding fitting R52 to which the first oil seal R77 is previously attached, and the first zero set collar 55 and the first ball bearing holding fitting R52 are screwed with the holding fitting fixing screw 76.

  The first zero set collar 55 assembled as described above is turned upside down, and the first bearing collar 73 is inserted from above until it comes into contact with the first ball bearing R75. 1 Ball bearing L74 is inserted. Then, the lid is covered with the first ball bearing holding metal fitting L53 to which the first oil seal L78 is previously attached, and the first zero set collar 55 and the first ball bearing holding metal fitting L53 are screwed with the holding metal fixing screw 76. In this way, the first rotation holding member 56 is assembled.

The assembly of the first roll type unit 36 using the first rotation holding member 56 assembled as described above will be described.
First, an assembly jig is used to stand the first shaft body 50 vertically on the assembly jig with the first shaft head 51 provided with the driving force passive clutch gear 47 downward.

  Thereafter, the first rotation holding member 56 is passed through the first shaft body 50 in the direction of arrow A from the first shaft tail 81 at the opposite end where the first shaft head 51 of the first shaft body 50 is located. The first ball bearing R75 in the moving holding member 56 is lowered until it contacts the wall surface of the first reference step 79.

  Subsequently, the first reference collar 80 is passed through the first shaft body 50 from the first shaft tail 81 in the direction of arrow A, and between the first shaft body 50, the first oil seal L78, and the first ball bearing retainer L53. Then, the end face of the first reference collar 80 is lowered until it abuts against the first ball bearing L74.

  Thereafter, the first adjustment collar 57 is passed through the first shaft body 50 in the direction of arrow A from the first shaft tail 81 and lowered until the end surface of the first adjustment collar 57 contacts the end surface of the first reference collar 80.

Subsequently, the first roll mold 60, the first space collar 61, and the second roll mold 63 are attached to the first shaft body 50 in the following order while being sequentially passed from the first shaft tail 81 in the direction of arrow A.
First, as a preliminary preparation, a first roll-type locking rod 82 for rotating the first roll mold 60 integrally with the first shaft body 50 is provided with a first fitting groove 83 provided in the first shaft body 50. Is attached from the direction of arrow B.

  Thereafter, the first sliding locking groove 84 provided in the first roll mold 60 is aligned with the first roll locking bar 82 and the first sliding locking groove 84 is slid in the direction of arrow A, The first roll mold 60 is mounted on the first roll mold locking rod 82 and lowered until the side surface of the first roll mold 60 contacts the end surface of the first adjustment collar 57.

  Subsequently, the space collar sliding engagement groove 85 provided in the first space collar 61 is aligned with the first roll-type engagement rod 82 and the space collar sliding engagement groove 85 is slid in the direction of arrow A. While moving, the first space collar 61 is mounted on the first roll-type locking rod 82 and lowered until the end surface of the first space collar 61 contacts the side surface of the first roll mold 60.

  Thereafter, the second sliding locking groove 86 provided in the second roll mold 63 is aligned with the first roll locking bar 82 and the second sliding locking groove 86 is slid in the direction of arrow A, The second roll mold 63 is mounted on the first roll mold locking rod 82 and lowered until the side surface of the second roll mold 63 contacts the end surface of the first space collar 61.

  The first roll mold 60 and the second roll mold 63 assembled in this way are attached to the first roll mold locking rod 82 mounted in the first fitting groove 83 of the first shaft body 50. By being fitted and locked in the first sliding locking groove 84 and the second sliding locking groove 86 of the second roll mold 63, the first shaft body 17 and the first shaft locking body 17 rotate together.

Subsequently, members constituting the second rotation holding member 68 are attached to the first shaft body 50 from the first shaft tail 81 in the direction of arrow A in the following order.
First, the second ball bearing pressing collar 64 is passed from the first shaft tail 81 in the direction of arrow A, and lowered until the end surface of the second ball bearing pressing collar 64 contacts the side surface of the second roll mold 63.

  Thereafter, the second ball bearing R71, the second zero set collar 67, the second bearing collar 69, and the second ball bearing L70 are passed through the first shaft body 81 through the first shaft body 50 in this order, and the respective members come into contact with each other. To lower.

The first hard lock nut R65 is passed through the first shaft body 50 in the direction of arrow A from the first shaft tail 81, and the first screw portion 87 provided on the first shaft tail 81 of the first shaft body 50 is passed. By fastening to each other, the respective members mounted as described above are fastened and fixed to the first shaft body 50.
Further, the first hard lock nut L72 is fastened to the first screw portion 87, and the first hard lock nut R65 is prevented from loosening.

  When fastening the first hard lock nut R65 and the first hard lock nut L72, a dedicated tool is hung on the first tool hook groove 88 provided in the first hard lock nut R65 and the first hard lock nut L72. The first notch 89 provided on the first shaft tail 81 of the first shaft body 50 is held by another dedicated tool.

  Further, in the above-described assembling method in which the first shaft body 50 is erected on the assembly jig, the member incorporated in the first shaft body 50 comes into contact with the lower member by its own weight, and the position of the incorporated member is naturally determined. Therefore, it is not necessary to push in each member, and the first roll type unit 36 can be assembled more easily.

  Furthermore, when the first roll mold unit 36 is assembled, each member uses a member that has passed the acceptance inspection, so that only the first roll mold unit 36 is assembled. The position of the movement holding member 56, the position of the first roll mold 60 and the second roll mold 63, and the position of the second rotation holding member 68 can be determined without adjustment. Therefore, even an operator who does not have a special technique can easily assemble the first roll type unit 36.

Next, the structure of the 2nd roll type | mold unit 37 is demonstrated based on FIG.
As shown in FIG. 4, a driving force passive clutch gear 47 is attached to the right side of the second shaft head 91 of the second shaft body 90 that becomes the core of the second roll type unit 37.
The driving force passive clutch gear 47 may be omitted when the second roll type unit 37 is not directly driven by the motor 3.

  A second ball bearing retainer R92 and a second ball bearing retainer L93 are attached to both sides on the left side of the second shaft head 91, and a third zero set collar 95 having a third contact circumferential portion 94 is provided. A third rotation holding member 96 made of is provided.

  Furthermore, a second space collar 98 is disposed on the left side of the third rotation holding member 96 with the second adjustment collar 97 interposed therebetween.

  Further, on the left side of the second space collar 98, a third roll mold 100 including a fourth metal plate forming portion 99 that is paired with the third metal plate forming portion 62 of the second roll mold 63 is disposed. .

  Further, on the left side of the third roll mold 100, a fourth zero set collar 104 having a fourth contact circumferential portion 103 sandwiched between a second ball bearing holding collar 101 and a second hard lock nut R102. A rotation holding member 105 is disposed, and a fourth ball bearing L107 and a fourth ball bearing R108 are disposed on the left and right sides of the fourth bearing collar 106 inside the fourth zero set collar 104.

  Each member is provided by a second hard lock nut R102 disposed on the left side of the fourth rotation holding member 105 and fastened to a second screw part 110 provided on the second shaft tail 109 of the second shaft body 90. Is tightened and loosened by the second hard lock nut L111 disposed on the left side of the second hard lock nut R102 and fastened to the second screw portion 110 provided on the second shaft tail 109 of the second shaft body 90. It is prevented.

  When the second hard lock nut R102 and the second hard lock nut L111 are fastened, a dedicated tool is hung on the second tool hook groove 112 provided in the second hard lock nut R102 and the second hard lock nut L111. The second notch 113 provided on the second shaft tail 109 of the second shaft 90 is held by another dedicated tool.

Here, the internal configuration of the third zero-set collar 95 constituting the third rotation holding member 96 will be described.
Inside the third zero set collar 95, a third ball bearing L115 and a third ball bearing R116 are arranged on the left and right sides of the third bearing collar 114, and after the grease is applied to the respective ball bearings, the third zero set collar 95 The second ball bearing pressing metal L93 and the second ball bearing pressing metal R92 are fixed to the inside of the third zero set collar 95 by screwing the second ball bearing pressing metal L93 and the second ball bearing pressing metal R92 on the left and right side surfaces of the set collar 95 with the pressing metal fixing screws 76.

  Further, in order to prevent leakage of the above-mentioned lubricated grease, a second oil seal R117 is attached to the second ball bearing press fitting R92, and a second oil seal L118 is attached to the second ball bearing press fitting L93. Is attached.

  In the second roll type unit 37 configured as described above, the third zero set collar 95 having the third contact circumferential portion 94 of the third rotation holding member 96 is the first roll stand 5 and the third roll stand 7. The third zero-set collar 95 having the third contact circumferential portion 94 of the third rotation holding member 96 is mounted in between so that the reference of the position with respect to the first roll forming machine 24 and the second roll mold unit 37 can be obtained. It becomes.

  Therefore, how to determine the position with respect to the third roll mold 100 and the fourth rotation holding member 105 in which the positional relationship with the third rotation holding member 96 in the second roll type unit 37 is important will be described.

First, the position of the third rotation holding member 96 in the second roll type unit 37 will be described.
A second reference step 119 serving as a reference for the second shaft body 90 is provided in the vicinity of the left side of the second shaft head 91 of the second shaft body 90, and the right side of the third ball bearing R116 is in contact therewith.

  Further, the third bearing collar 4 and the third ball bearing L115 are provided, and the left side of the third ball bearing L115 is pressed by the second reference collar 120, whereby the second shaft 90 has a second reference step 119 with respect to the second reference step 119. The position of the third rotation holding member 96 is determined, and the position of the third zero set collar 95 having the third contact circumferential portion 94 is determined.

Subsequently, the position of the third roll mold 100 will be described.
On the left side of the second reference collar 120 described above, the second adjustment collar 97 and the second space collar 98 for adjusting the position of the third roll mold 100 from the second reference step 119 to a predetermined position are sandwiched. A three roll mold 100 is provided. By adjusting the width of the second adjustment collar 97, the desired position of the third roll mold 100 with respect to the second reference step 119 of the second shaft body 90 is determined.

Then, the position of the fourth rotation holding member 105 will be described.
On the left side of the above-described third roll mold 100, a fourth rotation holding member 105 comprising a fourth zero set collar 104 having a fourth contact circumferential portion 103 with the second ball bearing holding collar 101 interposed therebetween is disposed. ing.

  The second ball bearing pressing collar 101 described above has a role of adjusting the position of the fourth rotation holding member 105 from the second reference step 119 to a predetermined position by adjusting the width and pressing the fourth ball bearing R108. .

  Further, inside the fourth zero set collar 104, a fourth ball bearing L107 and a fourth ball bearing R108 are arranged on the left and right sides of the fourth bearing collar 106, and arranged on the left side of the fourth ball bearing L107. It is fixed inside the fourth zero set collar 104 by the second hard lock nut R102.

Accordingly, the position of the fourth rotation holding member 105 with respect to the second reference step 119 of the second shaft body 90 is determined, and the desired position of the fourth zero set collar 104 having the fourth contact circumferential portion 103 is also determined. .
Then, by fastening the second hard lock nut R102 and fastening the second hard lock nut L111, the third rotation holding member 96, the third roll mold 100, and the fourth rotation of the second shaft 90 with respect to the second reference step 119 are performed. The position of the moving holding member 105 is fixed.

Although the positions of the third rotation holding member 96, the third roll mold 100, and the fourth rotation holding member 105 with respect to the second reference step 119 of the second shaft body 90 are fixed, the third rotation holding member 96 is fixed. The second shaft 90 is rotated by the fourth rotation holding member 105.
With the rotation of the second shaft body 90, the third roll mold 100 and the second space collar 98 are locked in the second roll mold mounted in the second fitting groove 121 provided in the second shaft body 90. By fitting and locking the rod 122 in the third sliding locking groove 123 provided in the third roll mold 100 and the fourth sliding locking groove 124 provided in the second space collar 98. Rotate integrally with the second shaft body 90.

  Subsequently, the second roll mold unit 37 is assembled by the second roll mold unit 37 in which the first roll mold 60 of the first roll mold unit 36 and the first space collar 61 have the same width. It is replaced with the space collar 98, and the second roll mold 63 is merely replaced with the third roll mold 100. The other members have the same name but different shapes, so that the second roll mold The method of assembling the unit 37 is omitted here as it refers to the method of assembling the first roll type unit 36.

Next, the structure of the 3rd roll type | mold unit 38 is demonstrated based on FIG.
As shown in FIG. 5, a driving force passive clutch gear 47 is attached to the right side of the third shaft head 126 of the third shaft body 125 that becomes the core of the third roll type unit 38.
The driving force passive clutch gear 47 may be omitted when the third roll type unit 38 is not directly driven by the motor 3.

  A third ball bearing retainer R127 and a third ball bearing retainer L128 are attached to both sides on the left side of the third shaft head 126, and a fifth zero set collar 130 having a fifth contact circumferential portion 129 is provided. The 5th rotation holding member 131 which consists of is arrange | positioned.

  Further, on the left side of the fifth rotation holding member 131, the fifth metal plate forming portion 133 and the second metal plate forming portion 133 that form a pair with the first metal plate forming portion 58 of the first roll mold 60 with the third adjustment collar 132 interposed therebetween. A fourth roll mold 135 including a sixth metal plate forming part 134 that forms a pair with the metal plate forming part 59 is disposed.

  Furthermore, a third space collar 136 is disposed on the left side of the fourth roll mold 135.

  Further, on the left side of the third space collar 136, a sixth zero-set collar 140 having a sixth contact circumferential portion 139 sandwiched between a third ball bearing pressing collar 137 and a third hard lock nut R138. A six-rotation holding member 141 is disposed, and a sixth ball bearing L143 and a sixth ball bearing R144 are disposed on the left and right sides of the sixth bearing collar 142 inside the sixth zero set collar 140.

  Then, each member is provided by a third hard lock nut R138 disposed on the left side of the sixth rotation holding member 141 and fastened to the third screw portion 146 provided on the third shaft tail 145 of the third shaft body 125. Is tightened and loosened by the third hard lock nut L147 disposed on the left side of the third hard lock nut R138 and fastened to the third screw portion 146 provided on the third shaft tail 145 of the third shaft body 125. It is prevented.

  When fastening the third hard lock nut R138 and the third hard lock nut L147, a special tool is applied to the third tool lock groove 148 provided in the third hard lock nut R138 and the third hard lock nut L147. The third notch 149 provided on the second shaft tail 109 of the second shaft body 90 is held by another dedicated tool.

Here, the internal configuration of the fifth zero set collar 130 constituting the fifth rotation holding member 131 will be described.
The fifth zero set collar 130 includes a fifth ball bearing L151 and a fifth ball bearing R152 on the left and right sides of the fifth bearing collar 150. After the grease is applied to each ball bearing, The third ball bearing pressing metal L128 and the third ball bearing pressing metal R127 are fixed to the inside of the fifth zero set collar 130 by screwing the third ball bearing pressing metal L128 and the third ball bearing pressing metal R127 with the pressing metal fixing screws 76 on the left and right side surfaces of the set collar 130.

  Further, in order to prevent leakage of the above-mentioned lubricated grease, a third oil seal R153 is attached to the third ball bearing press fitting R127, and a third oil seal L154 is attached to the third ball bearing press fitting L128. Is attached.

  In the third roll type unit 38 configured as described above, the fifth zero set collar 130 having the fifth contact circumferential portion 129 of the fifth rotation holding member 131 is the first roll stand 5 and the third roll stand 7. The fifth zero set collar 130 having the fifth abutting circumferential portion 129 of the fifth rotation holding member 131 is mounted in between so that the reference of the position with respect to the first roll forming machine 24 and the third roll mold unit 38 is achieved. It becomes.

  Therefore, how to determine the position with respect to the fourth roll mold 135 and the sixth rotation holding member 141 in which the positional relationship with the fifth rotation holding member 131 in the third roll type unit 38 is important will be described.

First, the position of the fifth rotation holding member 131 in the third roll type unit 38 will be described.
A third reference step 155 serving as a reference for the third shaft body 125 is provided in the vicinity of the left side of the third shaft head 126 of the third shaft body 125, and the right side of the fifth ball bearing R152 is in contact therewith.

  Further, the fifth bearing collar 150 and the fifth ball bearing L151 are arranged, and the left side of the fifth ball bearing L151 is pressed by the third reference collar 156, so that the third shaft 125 has a third reference step 155 with respect to the third reference step 155. The position of the fifth rotation holding member 131 is determined, and the position of the fifth zero set collar 130 having the fifth contact circumferential portion 129 is determined.

Subsequently, the position of the fourth roll mold 135 will be described.
The fourth roll mold 135 is disposed on the left side of the above-described third reference collar 156 with a third adjustment collar 132 for adjusting the position of the fourth roll mold 135 from the third reference step 155 to a predetermined position. Has been. By adjusting the width of the third adjustment collar 132, a desired position of the fourth roll mold 135 with respect to the third reference step 155 of the third shaft body 125 is determined.

Then, the position of the sixth rotation holding member 141 will be described.
On the left side of the above-mentioned fourth roll mold 135, a sixth turning consisting of a sixth zero set collar 140 having a sixth contact circumferential portion 139 sandwiching the third space collar 136 and the third ball bearing holding collar 137. A holding member 141 is provided.

  The above-described third ball bearing pressing collar 137 has a role of adjusting the position of the sixth rotation holding member 141 from the third reference step 155 to a predetermined position by adjusting the width and pressing the sixth ball bearing R144. .

  In addition, a sixth ball bearing L143 and a sixth ball bearing R144 are arranged on the left and right sides of the sixth bearing collar 142 inside the sixth zero set collar 140, and are arranged on the left side of the sixth ball bearing L143. It is fixed inside the sixth zero set collar 140 by the third hard lock nut R138.

Accordingly, the position of the sixth rotation holding member 141 with respect to the third reference step 155 of the third shaft body 125 is determined, and the desired position of the sixth zero set collar 140 having the sixth contact circumferential portion 139 is also determined. .
Then, by fastening the third hard lock nut R138 and fastening the third hard lock nut L147, the fifth rotation holding member 131, the fourth roll die 135, and the sixth time with respect to the third reference step 155 of the third shaft body 125 are obtained. The position of the moving holding member 141 is fixed.

Although the positions of the fifth rotation holding member 131, the fourth roll mold 135, and the sixth rotation holding member 141 with respect to the third reference step 155 of the third shaft body 125 are fixed, the fifth rotation holding member 131 is fixed. The third shaft body 125 is rotated by the sixth rotation holding member 141.
With the rotation of the third shaft body 125, the fourth roll mold 135 and the third space collar 136 are locked in the third roll mold lock 157 mounted in the third fitting groove 157 provided in the third shaft body 125. By fitting and locking the rod 158 in the fifth sliding locking groove 159 provided in the fourth roll mold 135 and the sixth sliding locking groove 160 provided in the third space collar 136. , Rotate integrally with the third shaft body 125.

  Subsequently, the third roll mold unit 38 is assembled by the third roll mold unit 38 in which the second roll mold 63 of the first roll mold unit 36 and the first space collar 61 have the same width. The space roll 136 is replaced with a fourth roll mold 135 that is paired with the first roll mold 60, and the other members have the same shape but different names. The assembly method of the unit 38 is omitted here as it refers to the assembly method of the first roll type unit 36.

Next, the configuration of the first roll molding machine 24 and the second roll molding machine 25 to which the first roll mold unit 36, the second roll mold unit 37, and the third roll mold unit 38 configured as described above are mounted will be described. This will be described with reference to FIG. 1, FIG. 2, FIG. 6, and FIG.
Here, FIG. 6 is a top view for explaining the basic configuration of the first roll forming machine and the second roll forming machine, and FIG. 7 is a side view seen from the first roll forming machine side.

First, based on FIG. 6, FIG. 7, the basic composition of the 1st roll forming machine 24 and the 2nd roll forming machine 25 is demonstrated.
As shown in FIGS. 6 and 7, a first roll stand 5 that constitutes a basic configuration of a first roll forming machine 24 from a base 23 placed on the forming machine mounting table 2 and fixed by a forming machine fixing screw 161, Four roll stands, the second roll stand 6, the third roll stand 7, and the fourth roll stand 8, are erected vertically.

  Among these, the first roll stand 5 and the third roll stand 7 form a pair, and on the side surfaces facing each other, the first insertion portion 162 opened upward to the upper end portion on the first roll stand 5 side and the first roll stand 5 are provided. A first color positioning / holding portion 163 following the first insertion portion 162 is provided, and a third insertion portion 164 opened upward at the upper end of the third roll stand 7 side and a second color positioning / holding following the third insertion portion 164 are provided. A portion 165 is provided.

  The first color positioning and holding portion 163 and the second color positioning and holding portion 165 are concave grooves, and are provided vertically from the upper end of each side surface to the base 23 at the lower end.

  The first color positioning holding portion 163 and the second color positioning holding portion 165 include a convex third contact circumferential portion 94 provided on the third zero set collar 95 of the second roll type unit 37, and The convex first contact circumferential portion 54 provided on the first zero set collar 55 of the first roll type unit 36 and the convex shape provided on the fifth zero set collar 130 of the third roll type unit 38. The fifth contact circumferential portion 129 is sequentially mounted and positioned and held.

  At this time, the third contact circumferential portion 94 of the second roll type unit 37, the first contact circumferential portion 54 of the first roll type unit 36, and the first contact circumferential portion 54 of the first roll type unit 36. And the fifth contact circumferential portion 129 of the third roll type unit 38 also contact.

  Further, the second roll stand 6 and the fourth roll stand 8 make a pair, and on the side surfaces facing each other, the second insertion portion 166 and the second insertion portion 166 opened upward at the upper end portion on the second roll stand 6 side are provided. A first collar holding portion 167 following the insertion portion 166 is provided, and a fourth insertion portion 168 opened upward at an upper end portion on the fourth roll stand 8 side and a second color holding portion 169 following the fourth insertion portion 168 are provided. Is provided.

  The first color holding portion 167 and the second color holding portion 168 are planar walls, and are vertically provided from the upper end of each side surface to the base 23 at the lower end.

  The first color positioning and holding portion 163 and the second color positioning and holding portion 165 are connected to the third contact circumferential portion 94 of the second roll type unit 37 and the first contact circumference of the first roll type unit 36. At the same time that the portion 54 and the fifth contact circumferential portion 129 of the third roll type unit 38 are mounted in order, the first color holding portion 167 and the second color holding portion 169 are provided with the second roll type unit 37. A fourth contact circumferential portion 103 provided on the fourth zero set collar 104, a second contact circumferential portion 66 provided on the second zero set collar 67 of the first roll type unit 36, and a third A sixth contact circumferential portion 139 provided on the sixth zero set collar 140 of the roll type unit 38 is sequentially mounted and held.

  The fourth contact circumferential portion 103 of the second roll type unit 37, the second contact circumferential portion 66 of the first roll type unit 36, the second contact circumferential portion 66 of the first roll type unit 36, and the third The sixth contact circumferential portion 139 of the roll type unit 38 also contacts.

  The first insertion portion 162, the third insertion portion 164, the second insertion portion 166, and the fourth insertion portion 168 include a third contact circumferential portion 94, a first contact circumferential portion 54, and a fifth contact. In order to facilitate insertion of the circumferential portion 129, the fourth contact circumferential portion 103, the second contact circumferential portion 66, and the sixth contact circumferential portion 139, predetermined chamfering is performed.

  Also, the first wall holding part 167 and the second color holding part 169 have a flat wall shape in which the first roll mold 60, the second roll mold 63, the third roll mold 100, and the fourth roll mold 135 are created. It becomes a margin when doing.

  Moreover, the back surface of each roll stand functions as a roll stand of the next roll forming machine. For example, an insertion portion and a positioning holding portion are provided on the back surface of the third roll stand 7, and an insertion portion and a holding portion are provided on the back surface of the fourth roll stand 8. By sharing in this way, the number of roll stands can be reduced.

  A first contact reference surface screw 170 having a first contact reference surface 33 at the top of the head is provided at the center between the first roll stand 5 and the third roll stand 7.

  The first abutment reference surface screw 170 is disposed between the first roll stand 5 and the third roll stand 7 and is fixed to the base 23 by a block mounting screw 171. It is screwed to.

The first contact reference surface 33 is a horizontal reference surface for mounting the second roll mold unit 37 on the first roll forming machine 24 horizontally.
The first contact reference surface screw 170 may be directly fixed to the base 23.

Further, a second contact reference surface screw 173 having a second contact reference surface 35 at the top of the head is provided at the center between the second roll stand 6 and the fourth roll stand 8.
The second contact reference surface screw 173 is disposed between the second roll stand 6 and the fourth roll stand 8 and is fixed to the base 23 by a block mounting screw 171. It is screwed to.

The second contact reference surface 35 is a horizontal reference provided so as to be flush with the first contact reference surface 33 in order to horizontally mount the second roll mold unit 37 on the first roll molding machine 24. Surface.
The second contact reference surface screw 173 may be directly fixed to the base 23.

  In contrast to the first contact reference surface 33 and the second contact reference surface 35 thus provided, the first contact reference surface 33 has a second roll type unit 37 inserted from above the respective roll stands. The second roll type unit 37 is brought into contact with the third contact circumferential part 94 and the fourth contact circumferential part 103 of the second roll type unit 37 is brought into contact with the second contact reference surface 35. Can be mounted horizontally to the first roll forming machine 24.

  The first color positioning and holding portion 163, the second color positioning and holding portion 165, the first contact reference surface 33, and the second contact reference surface 35 are connected to the first roll forming machine 24, the second roll mold unit 37, and the like. This is a reference for connecting the first roll type unit 36 and the third roll type unit 38.

  Therefore, when manufacturing the 2nd roll type | mold unit 37, the position of the 2nd reference | standard level | step difference 119 of the 2nd shaft body 90, the position of the 3rd roll type | mold 100, the 4th contact | abutting circumference part 103 is based on this reference | standard. The position of the fourth zero set collar 104 comprising

Similarly, when manufacturing the 1st roll type | mold unit 36, the position of the 1st reference | standard level | step difference 79 of the 1st shaft body 50 on the basis of this reference | standard, the position of the 1st roll type | mold 60 and the 2nd roll type | mold 63, 2nd The position of the second zero set collar 67 having the contact circumferential portion 66 is determined.

  Similarly, when the third roll type unit 38 is manufactured, the position of the third reference step 155 of the third shaft 125, the position of the fourth roll type 135, the sixth contact circumferential portion 139 based on this reference. The position of the sixth zero set collar 140 comprising

  As shown in FIGS. 1, 6, and 7, the first reinforcing plate 48 is fixed to each roll stand disposed on the speed reducer 4 side by a screw (not shown), and further, a base is provided by a screw (not shown). 23 is fixed.

  In addition, as shown in FIGS. 1, 2, 6, and 7, the second reinforcing plate 49 is fixed to each roll stand disposed on the side where the speed reducer 4 is not provided by screws (not shown), and further illustrated. It is being fixed to the base 23 with the screw which does not.

  The first reinforcing plate 48 and the second reinforcing plate 49 are formed by forming the repulsive force of the metal plate or the metal plate when the metal plate is formed into a desired shape by the roll type unit attached to each roll stand. However, the roll stands are provided to prevent the roll stands from being deformed by the drag force.

Next, members associated with each roll stand will be described with reference to FIGS. 1, 2, 6, and 7.
As described above, the first fixed holding plate 40 is locked to the upper ends of the odd-numbered roll stands of the first roll stand 5 to the fifteenth roll stand 19 by the holding plate fixing screws 39, so that the first fixed holding is performed. A first unit fixing screw 41 is attached to the plate 40.

  Similarly, as described above, the second fixed holding plate 42 is locked to the upper ends of the even-numbered roll stands of the second roll stand 6 to the sixteenth roll stand 20 by the holding plate fixing screws 39, and A second unit fixing screw 43 is attached to the two fixing holding plate 42.

  For example, the first fixed holding plate 40 that is locked to the first roll stand 5 of the first roll forming machine 24 by the holding plate fixing screw 39 is the holding plate fixing screw when the holding plate fixing screw 39 is in a temporarily tightened state. It can rotate to the outside of the first roll forming machine 24 around 39.

  Similarly, the second fixed holding plate 42 that is locked to the second roll stand 6 of the first roll forming machine 24 by the holding plate fixing screw 39 is fixed to the holding plate when the holding plate fixing screw 39 is temporarily tightened. The screw 39 can be rotated to the outside of the first roll forming machine 24 around the screw 39.

  When the first fixed holding plate 40 and the second fixed holding plate 42 of the first roll forming machine 24 are outside the first roll forming machine 24, the second roll type unit 37, the first roll type unit 36, The third roll type unit 38 can be attached to and detached from the first roll stand 5 and the third roll stand 7 and the second roll stand 6 and the fourth roll stand 8 of the first roll molding machine 24.

  The same applies to other roll forming machines, and the states of FIGS. 6 and 7 show a state in which the roll type unit can be detached.

  Further, the first fixed holding plate 40 locked to the upper end of the odd-numbered roll stands of the first roll stand 5 to the fifteenth roll stand 19 by a holding plate fixing screw 39 has a first side. A hook portion 175 is provided.

  Similarly, a second hook is attached to the top end of the even-numbered roll stand of the second roll stand 6 to the sixteenth roll stand 20 by a holding plate fixing screw 39 on the tip side of the second fixed holding plate 42. A portion 176 is provided.

  For example, the second roll type unit 37, the first roll type unit 36, and the third roll type unit 38 are the first roll stand 5, the third roll stand 7 and the second roll stand 6 of the first roll molding machine 24. When mounted on the four-roll stand 8, the first fixed holding plate 40 for the first roll forming machine 24 is screwed by the holding plate fixing screw 39 of the first roll stand 5 and the first fixed holding plate 40. The first hook portion 175 is fastened together with the first fixed holding plate 40 for the second roll forming machine 25 that is locked to the third roll stand 7 by the holding plate fixing screw 39.

  Similarly, the second fixed holding plate 42 for the first roll forming machine 24 is screwed by the holding plate fixing screw 39 of the second roll stand 6 and the second hook portion 176 of the second fixed holding plate 42 is fixed. The second roll holding machine 42 is fastened together with the second fixed holding plate 42 for the second roll forming machine 25 that is locked to the fourth roll stand 8 by the holding plate fixing screws 39.

  Then, the first roll forming machine 24 uses the first unit fixing screw 41 of the first fixed holding plate 40 and the second unit fixing screw 43 of the second fixed holding plate 42 to perform the second roll type unit 37 to the third roll type. The zero-set collar provided with the contact circumferential portion of each rotation holding member of the unit 38 includes a first contact reference surface 33 between the first roll stand 5 and the third roll stand 7, and a first color positioning and holding portion. 163, the second color positioning holding portion 165, the second contact reference surface 35 between the second roll stand 6 and the fourth roll stand 8, the first color holding portion 167, and the second color holding portion 169 are screwed and fixed. Will be ready for operation.

  This is the same in other roll forming machines, and the states of FIGS. 1 and 2 show an operable state in a state in which the roll type unit is mounted on all roll forming machines.

  Further, in the vicinity of the right side of the first roll forming machine 24, the speed reducer 4 paired with the first roll forming machine 24 is fixed to the molding machine mounting table 2 by a speed reducer mounting screw 177.

  Similarly, in the vicinity of the right side of the second roll forming machine 25 to the eighth roll forming machine 31, the speed reducer 4 paired with each roll forming machine is fixed to the molding machine mounting table 2 by a speed reducer mounting screw 177, Each is connected by a connecting shaft 44 and is connected to a motor 3 as a drive source.

  Further, on the left side of the speed reducer 4, a rotation transmission shaft 45 that extends and contracts from the speed reducer 4 is provided, and a driving force transmission clutch gear 46 is provided at the tip thereof.

  The expansion and contraction of the rotation transmission shaft 45 is attached to the reaction force of the coil spring 179 disposed between the driving force transmission clutch gear 46 and the spring receiving plate 178 attached to the speed reducer 4 side and the cylinder fixing base 180. This is done by pressing and releasing the lever 183 attached to the left end of the cylinder shaft 182 of the clutch cylinder 181.

As shown in FIG. 2, a seat plate 184 is disposed at the upper end of the eighteenth roll stand 22 and is fastened together with the second fixed holding plate 42 by a holding plate fixing screw 39.
This is a measure for suppressing the cost increase by using a simple seat plate 184 by sharing the parts without newly manufacturing the second fixed holding plate 42 or the eighteenth roll stand 22.
A seat plate 184 is used for the seventeenth roll stand 21, and the same countermeasure is taken.

Next, a process of mounting the second roll mold unit 37, the first roll mold unit 36, and the third roll mold unit 38 on the first roll molding machine 24 will be described with reference to FIGS.
Here, FIG. 8 is a side view of the roll forming machine showing a state where the roll type unit is ready for mounting, FIG. 9 is a side view of the roll forming machine showing a state where the second roll type unit is mounted, and FIG. FIG. 9 is a side view of the roll forming machine showing a state where the first roll type unit is mounted in FIG. 9, FIG. 11 is a side view of the roll forming machine showing a state where the third roll type unit is mounted in FIG. These are the side views of the roll forming machine which show the state where operation preparation was completed.
8 to 12 are C views of the roll type unit viewed from the first roll stand 5 and the third roll stand 7 side, and the roll type unit viewed from the second roll stand 6 and the fourth roll stand 8 side. D view is displayed, and it is possible to see the process of mounting each roll type unit.

  As shown in FIG. 8, the first fixed holding plate 40 and the second fixed holding plate 42 of the first roll forming machine 24 are outside the first roll forming machine 24, and the driving force transmission clutch gear 46 is The second roll type unit 37, the first roll type unit 36, and the third roll type unit are in a state of waiting on the reduction gear 4 side by pressing of a lever 183 attached to the cylinder shaft 182 of the clutch cylinder 181. 38 is ready to be mounted in the direction of arrow E.

  Therefore, first, as shown in FIG. 8, in the space formed by the first roll stand 5 and the third roll stand 7 and the second roll stand 6 and the fourth roll stand 8 of the first roll forming machine 24, When the roll die unit 37 is mounted in the unit state in the direction of arrow E from above the first roll forming machine 24, the state shown in FIG. 9 is obtained (see FIGS. 6 and 7).

  In this mounting, the third zero set collar 95 including the third contact circumferential portion 94 of the second roll type unit 37 is inserted into the first insertion portion 162 of the first roll stand 5 and the third insertion of the third roll stand 7. Inserted into the first roll stand 5 and positioned and held by the first color positioning and holding portion 163 of the first roll stand 5 and the second color positioning and holding portion 165 of the third roll stand 7. The second roll type unit 37 abuts against the first abutting reference surface 33 disposed between the roll stands 7.

  Similarly, the fourth zero set collar 104 including the fourth contact circumferential portion 103 of the second roll type unit 37 includes the second insertion portion 166 of the second roll stand 6 and the fourth insertion portion of the fourth roll stand 8. 168, and is held by the first collar holding portion 167 of the second roll stand 6 and the second collar holding portion 169 of the fourth roll stand 8, and further between the second roll stand 6 and the fourth roll stand 8. The second roll type unit 37 abuts against the second abutting reference surface 35 disposed on the surface.

  Subsequently, as shown in FIG. 9, when the first roll mold unit 36 is mounted in the unit state in the direction of arrow E from above the first roll forming machine 24, the state shown in FIG. 10 is obtained.

  In this mounting, the first zero set collar 55 provided with the first contact circumferential portion 54 of the first roll type unit 36 has the first insertion portion 162 of the first roll stand 5 and the third insertion of the third roll stand 7. Inserted into the first roll stand 5 and positioned and held by the first color positioning and holding portion 163 of the first roll stand 5 and the second color positioning and holding portion 165 of the third roll stand 7. The first roll type unit 36 abuts against a third zero-set collar 95 including the three abutting circumferential portions 94.

  Similarly, the second zero set collar 67 including the second contact circumferential portion 66 of the first roll type unit 36 includes the second insertion portion 166 of the second roll stand 6 and the fourth insertion portion of the fourth roll stand 8. 168, and is held by the first color holding portion 167 of the second roll stand 6 and the second color holding portion 169 of the fourth roll stand 8, and further, the fourth contact circle of the second roll type unit 37 The first roll type unit 36 abuts on the fourth zero set collar 104 including the peripheral portion 103 by its own weight.

  At this time, the fourth metal plate forming portion 99 provided in the third roll die 100 of the second roll die unit 37 and the third metal plate forming portion 62 provided in the second roll die 63 of the first roll die unit 36. Are opposed to each other without any adjustment, and the desired gap is naturally obtained.

  Next, as shown in FIG. 10, when the third roll mold unit 38 is mounted in the unit state in the direction of arrow E from above the first roll forming machine 24, the state shown in FIG. 11 is obtained.

  In this mounting, the fifth zero set collar 130 including the fifth abutting circumferential portion 129 of the third roll type unit 38 has the first insertion portion 162 of the first roll stand 5 and the third insertion of the third roll stand 7. Inserted into the first roll stand 5 and positioned and held by the first color positioning and holding portion 163 of the first roll stand 5 and the second color positioning and holding portion 165 of the third roll stand 7. The third roll type unit 38 comes into contact with the first zero set collar 55 including the one contact circumferential portion 54 by its own weight.

  Similarly, the sixth zero set collar 140 including the sixth abutting circumferential portion 139 of the third roll type unit 38 includes the second insertion portion 166 of the second roll stand 6 and the fourth insertion portion of the fourth roll stand 8. 168, and is held by the first collar holding portion 167 of the second roll stand 6 and the second collar holding portion 169 of the fourth roll stand 8, and further, the second abutting circle of the first roll type unit 36. The third roll type unit 38 abuts against a second zero set collar 67 having a peripheral portion 66 by its own weight.

  At this time, the first metal plate forming portion 58 provided in the first roll die 60 of the first roll die unit 36 and the fifth metal plate forming portion 133 provided in the fourth roll die 135 of the third roll die unit 38. , And a second metal plate forming portion 59 provided on the first roll die 60 of the first roll die unit 36 and a sixth metal plate forming portion 134 provided on the fourth roll die 135 of the third roll die unit 38. Are opposed to each other without any adjustment, and the desired gap is naturally obtained.

  Thus, when the simple mounting in the direction of arrow E from above the second roll mold unit 37, the first roll mold unit 36, and the third roll mold unit 38 to the first roll molding machine 24 is completed, as shown in FIG. The first fixed holding plate 40 is screwed and fixed to the first roll stand 5 and the third roll stand 7 by holding plate fixing screws 39.

  Similarly, the second fixed holding plate 42 is screwed and fixed to the second roll stand 6 and the fourth roll stand 8 by holding plate fixing screws 39.

  Then, by tightening the first unit fixing screw 41 provided in the first fixing holding plate 40, the first contact reference surface 33, the first color positioning holding portion 163 of the first roll stand 5, and the third roll stand 7 are used. The third zero set collar 95 including the third contact circumferential portion 94 of the second roll type unit 37 and the first contact of the first roll type unit 36 in the space formed by the second color positioning and holding portion 165. The first zero set collar 55 including the circumferential portion 54 and the fifth zero set collar 130 including the fifth contact circumferential portion 129 of the third roll type unit 38 are positioned, held, and fixed.

Similarly, by tightening the second unit fixing screw 43 provided on the second fixed holding plate 42, the second contact reference surface 35, the first collar holding portion 167 of the second roll stand 6, and the fourth roll stand 8 are used. In the space formed by the second color holding portion 169, the fourth zero set collar 104 including the fourth contact circumferential portion 103 of the second roll type unit 37 and the second contact circle of the first roll type unit 36. The second zero set collar 67 including the peripheral portion 66 and the sixth zero set collar 140 including the sixth contact peripheral portion 139 of the third roll type unit 38 are held and fixed.
Thus, the first roll forming machine 24 is in an operating state.

  Subsequently, based on FIG. 11 and FIG. 12, the first roll mold unit 36 that is mounted on the first roll forming machine 24 that is in the operating state and becomes the center of driving of the first roll forming machine 24 is driven. The relationship between the force passive clutch gear 47 and the driving force transmission clutch gear 46 of the speed reducer 4 will be described.

  As described above, on the left side of the speed reducer 4 (right side in FIGS. 11 and 12) attached to the molding machine mounting table 2, the driving force transmission clutch is connected to the left end portion of the rotation transmission shaft 45 extending and contracting from the speed reducer 4. A gear 46 is attached.

  Similarly, the speed reducer 4 reduces the rotational speed of the motor 3 attached to the molding machine mounting base 2 via the motor fixing base 185, and passes through the driving force transmission clutch gear 46 and the driving force passive clutch gear 47. And has a role of transmitting a rotational force (driving force) to the first roll type unit 36 (see FIGS. 1 and 2).

  Further, the expansion and contraction of the rotation transmission shaft 45 is caused by the reaction force of the coil spring 179 disposed between the driving force transmission clutch gear 46 and the spring receiving plate 178 attached to the speed reducer 4, and the molding machine mounting table 2. This is performed by a lever 183 attached to the left end of the cylinder shaft 182 of the clutch cylinder 181 attached via the cylinder fixing base 180.

  That is, the rotation transmission shaft 45 originally has a shape that can freely expand and contract to the driving force passive clutch gear 47 on the other side, and the coil spring 179 has a length that allows the rotation transmission shaft 45 to extend to the driving force passive clutch gear 47. ing.

  When the cylinder shaft 182 of the clutch cylinder 181 is pulled to a predetermined position in the clutch cylinder 181, the lever 183 attached to the tip of the cylinder shaft 182 also presses the driving force transmission clutch gear 46 to the predetermined position. To do.

  At this time, the coil spring 179 contracts and accumulates the reaction force. When the contracted state is held by the clutch cylinder 181, the engagement of the driving force transmission clutch gear 46 and the driving force passive clutch gear 47 is released, and as a result, The driving force transmission clutch gear 46 is retracted to the speed reducer 4 side (see FIG. 11).

  Conversely, when the clutch cylinder 181 releases the holding of the coil spring 179, that is, when the lever 183 attached to the tip of the cylinder shaft 182 is pulled out to a predetermined position together with the cylinder shaft 182, the coil spring 179 Due to the accumulated reaction force, the driving force transmission clutch gear 46 is pushed out together with the rotation transmission shaft 45 to a predetermined position.

  At this time, if there is a driving force passive clutch gear 47 there, when the motor 3 is rotated, the driving force transmission clutch gear 46 and the driving force passive clutch gear 47 are engaged (see FIG. 12).

  For this engagement, a position where two passive clutch gear projections 186 face the driving force passive clutch gear 47 attached to the first shaft head 51 of the first shaft body 50 in the first roll type unit 36. And two passive clutch gear recesses 187 are provided at opposing positions (see FIG. 3).

  Further, the driving force transmission clutch gear 46 (see FIG. 12) paired with the driving force passive clutch gear 47 is provided at a position where the two driving clutch gear convex portions 188 face each other, and the two driving clutch gear concave portions 189 face each other. It is provided in the position to do.

  When the driving force transmission clutch gear 46 is applied to the driving force passive clutch gear 47 by rotating the motor 3, the passive clutch gear convex portion 186 is engaged with the driving clutch gear concave portion 189, and the passive clutch gear concave portion 187 is The drive clutch gear convex portion 188 is engaged (see an enlarged view of the K portion in FIG. 12).

  Thus, when the driving force transmission clutch gear 46 and the driving force passive clutch gear 47 are engaged with the other second roll forming machine 25 to the eighth roll forming machine 31, the state shown in FIG. It becomes a state.

Next, as shown in FIG. 12, the relationship among the second roll mold unit 37, the first roll mold unit 36, and the third roll mold unit 38 mounted on the first roll molding machine 24 is shown in FIGS. Based on
Here, FIG. 13 is an explanatory diagram for explaining the relationship among the second roll mold unit, the first roll mold unit, and the third roll mold unit mounted on the first roll molding machine.

  As shown in FIGS. 12 and 13, the first color positioning holding portion 163 of the first roll stand 5 and the second color positioning holding portion 165 of the third roll stand 7 constituting the first roll forming machine 24 include A third abutting circumferential portion 94 of the two-roll type unit 37, a first abutting circumferential portion 54 of the first roll-type unit 36, and a fifth abutting circumferential portion 129 of the third roll-type unit 38 are mounted. Hold the positioning.

  Similarly, the first collar holding portion 167 of the second roll stand 6 and the second collar holding portion 169 of the fourth roll stand 8 have the fourth contact circumferential portion 103 of the second roll type unit 37, the first roll. The second contact circumferential portion 66 of the mold unit 36 and the sixth contact circumferential portion 139 of the third roll mold unit 38 are mounted and held.

  When the second roll mold unit 37, the first roll mold unit 36, and the third roll mold unit 38 are attached to the first roll molding machine 24, the third contact circumferential portion 94 of the second roll mold unit 37 and The first abutting circumferential portion 54 of the first roll type unit 36 abuts as a circumferential line contact, and the first abutting circumferential portion 54 of the first roll type unit 36 and the third roll type unit 38 are in contact with each other. The fifth contact circumferential portion 129 contacts as a circumferential line contact.

  Similarly, the fourth contact circumferential portion 103 of the second roll type unit 37 and the second contact circumferential portion 66 of the first roll type unit 36 are in contact as a circumferential line contact, and the first roll type The second abutting circumferential portion 66 of the unit 36 and the sixth abutting circumferential portion 139 of the third roll type unit 38 abut as a circumferential line contact.

  As described above, the first contact reference surface 33 is provided between the first roll stand 5 and the third roll stand 7, and the second roll stand 6 and the fourth roll stand 8 are provided with the first contact reference surface 33. A two-contact reference surface 35 is provided.

  In order to normally mount the second roll type unit 37 between the first roll stand 5 and the third roll stand 7 and between the second roll stand 6 and the fourth roll stand 8 first, When the peripheral portion 94 contacts the first contact reference surface 33 and the fourth contact circumferential portion 103 contacts the second contact reference surface 35, the second shaft 90 of the second roll type unit 37 The axis center line CL2 must be horizontal.

  Therefore, the radius c of the third contact circumferential portion 94 of the second roll type unit 37 and the radius d of the fourth contact circumferential portion 103 need to be the same radius.

  Subsequently, in order to normally mount the first roll type unit 36 and the third roll type unit 38 between the first roll stand 5 and the third roll stand 7 and between the second roll stand 6 and the fourth roll stand 8, When the first roll type unit 36 and the third roll type unit 38 are mounted, the axial center line CL1 of the first shaft body 50 of the first roll type unit 36 and the third shaft body 125 of the third roll type unit 38, CL3 must be parallel to the axial center line CL2 of the second shaft body 90 of the second roll type unit 37.

  Accordingly, the radius a of the first contact circumferential portion 54, the radius b of the second contact circumferential portion 66, the radius c of the third contact circumferential portion 94, and the fourth contact circumferential portion 103 The radius d, the radius e of the fifth contact circumferential portion 129, and the radius f of the sixth contact circumferential portion 139 are all the same radius.

  Further, as described above, the third contact circumferential portion 94 of the second roll type unit 37, the first contact circumferential portion 54 of the first roll type unit 36, and the fifth contact of the third roll type unit 38. The circumferential portion 129 is positioned and held by the first color positioning and holding portion 163 of the first roll stand 5 and the second color positioning and holding portion 165 of the third roll stand 7 constituting the first roll forming machine 24. The shapes of the second roll mold 63 and the third roll mold 100 and the shapes of the first roll mold 60 and the fourth roll mold 135 are determined based on the positioning holding portion.

  Since the first roll mold 60 to the fourth roll mold 135 are molds of a roll molding machine, the first shaft body 50 of the first roll mold unit 36, the second shaft body 90 of the second roll mold unit 37, The respective members mounted through the third shaft body 125 of the third roll type unit 38 are the axis center line CL1 of the first shaft body 50, the axis center line CL2 of the second shaft body 90, and the axis of the third shaft body 125. Each of the shapes or combinations of a disc, a cylinder, and a cone having the same center as that of the center line CL3 is used.

  Therefore, the side surfaces rotated 360 degrees about the first roll type unit 36, the second roll type unit 37, and the third roll type unit 38 all have the same shape and no directionality.

  The same applies to the first metal plate forming portion 58 and the second metal plate forming portion 59 provided in the first roll die 60 of the first roll die unit 36, and the third roll die unit 38 of the third roll die unit 38 to be paired. The same applies to the fifth metal plate forming portion 133 and the sixth metal plate forming portion 134 provided in the four-roll mold 135.

  Therefore, a gap α at a predetermined location formed by the first metal plate forming portion 58 and the fifth metal plate forming portion 133, and a predetermined space formed by the second metal plate forming portion 59 and the sixth metal plate forming portion 134. The gap β at this point is also constant even if it is rotated 360 degrees about the axis.

  Further, the third metal plate forming portion 62 provided in the second roll die 63 of the first roll die unit 36 is the same, and is provided in the third roll die 100 of the second roll die unit 37 to be paired. The same applies to the fourth metal plate forming section 99.

  Therefore, the gap γ at a predetermined location formed by the third metal plate forming portion 62 and the fourth metal plate forming portion 99 is also constant even if it is rotated 360 degrees about the axis.

  That is, the third contact circumferential portion 94 of the second roll type unit 37, the first contact circumferential portion 54 of the first roll type unit 36, and the fifth contact circumferential portion 129 of the third roll type unit 38 are provided. The first roll reference surface 33, the first color positioning and holding portion 163 of the first roll stand 5 and the second color positioning and holding portion 165 of the third roll stand 7 are attached and brought into contact with each other to form a second roll type. The fourth contact circumferential portion 103 of the unit 37, the second contact circumferential portion 66 of the first roll type unit 36, and the sixth contact circumferential portion 139 of the third roll type unit 38 are designated as the first contact reference. By attaching the surface 33 to the first color holding part 167 of the second roll stand 6 and the second color holding part 169 of the fourth roll stand 8 and bringing them into contact with each other, no adjustment is made. Roll mold 63, third roll mold 100 and first roll Le-type 60 and a desired gap between the fourth roll type 135 may be formed 360 degrees stably.

Next, an example of performing roll forming of a metal plate using the roll forming apparatus 1 configured as described above will be described with reference to FIGS. 2, 12, 14 to 17.
Here, FIG. 14 is a cross-sectional view (dish-shaped) of the molded product formed by the outward forming process, FIG. 15 is a cross-sectional view (bath-shaped) of the formed product formed by the outward forming process, and FIG. Fig. 17 is a cross-sectional view in which a bowl-shaped cross-section molded product is superimposed on a dish-shaped cross-section molded product before forming the return path. It is sectional drawing of the molded product.

First, operation | movement of each roll forming machine in the roll forming apparatus 1 of this embodiment is demonstrated.
As shown in FIG. 2, the first roll forming machine 24 to the eighth roll forming machine 31 are each mounted with an upper middle stage and a lower stage and three roll type units, and the upper and middle stage two roll type units are mounted. The forward forming from the arrow F to the arrow G is performed, and the two roll mold units in the middle lower stage perform the backward forming from the arrow H to the arrow J.

  Therefore, the driving force passive clutch gear 47 provided in the middle roll type unit in FIG. 2 meshes with the driving force transmission clutch gear 46 pushed out from the speed reducer 4 (see FIG. 12). The middle roll type unit rotates clockwise.

  The input port (in the direction of arrow F) for the member for the forward forming is on the eighth roll forming machine 31 side, and the discharge port (in the direction of the arrow G) for the formed member is on the first roll forming device 24 side. The member inlet (in the arrow H direction) is on the first roll forming machine 24 side, and the outlet of the formed member (in the arrow J direction) is on the eighth roll forming machine 31 side.

  In the outward forming process, the two members are formed into a roll mold that can be simultaneously formed in parallel. For example, the first roll mold 60 and the fourth roll mold 135 of the first roll forming machine 24 form a first pair. The combination of the metal plate forming portion 58 and the fifth metal plate forming portion 133 and the combination of the second metal plate forming portion 59 and the sixth metal plate forming portion 134 are the final steps of this forward forming, and the formed member is discharged. It becomes the exit (arrow G direction).

  Further, in the backward forming step, a roll mold that can form one member is formed. For example, a third metal plate that is paired by a combination of the second roll mold 63 and the third roll mold 100 of the first roll forming machine 24. The combination of the forming part 62 and the fourth metal plate forming part 99 becomes the leading process of the backward forming, and becomes the inlet (in the direction of arrow H) for the member to be formed.

Subsequently, the metal sheet roll forming in the roll forming apparatus 1 of the present embodiment will be described.
By feeding two flat metal plates in the direction of arrow F from the respective forward forming inlets provided in the eighth roll forming machine 31, each of the eighth roll forming machine 31 and the first roll forming machine 24 is used. The first metal plate forming portion 58 and the fifth metal plate which are paired by the combination of the first roll mold 60 and the fourth roll mold 135 of the first roll forming machine 24 while being roll-formed into a desired shape in the roll forming machine of FIG. A dish-shaped cross-section molded product 190 shown in FIG. 14 is discharged in the direction of arrow G from the combination portion of the forming portion 133.

  At the same time, the combination of the first roll mold 60 and the fourth roll mold 135 of the first roll forming machine 24 and the combination of the second metal plate forming portion 59 and the sixth metal plate forming portion 134 form a bowl shown in FIG. Similarly, the cross-sectional molded product 191 is discharged in the direction of arrow G.

  And as shown in FIG. 16, the 2nd roll type | mold 63 and the 3rd roll type | mold 100 of the 1st roll molding machine 24 which are the bowl-shaped cross-section molded products 190 on the dish-shaped cross-section molded product 190 and are the inlets of a return path molding. The combination of the third metal plate forming portion 62 and the fourth metal plate forming portion 99 that are paired with each other in the direction indicated by the arrow H causes the first roll forming machine 24 to the eighth roll forming machine 31 respectively. 17 is discharged in the direction of the arrow J from the discharge port of the eighth roll forming machine 31 while being roll-formed into a desired shape in this roll forming machine.

  Since the plate-shaped cross-sectional molded product 190, the bowl-shaped cross-sectional molded product 191 and the bag-shaped cross-sectional molded product 192 are simultaneously roll-formed, a finished product can be manufactured in a short time without wasting time.

  Further, the upper middle stage lower stage and the three roll mold units are mounted on each of the first roll molding machine 24 to the eighth roll molding machine 31, and the forward molding is performed by the upper middle stage roll type unit. Since the backward forming is performed by the roll mold unit, the roll forming capability can be doubled without increasing the installation area of the roll forming apparatus 1.

  Further, even if the roll forming capability is doubled, it is not necessary to double the roll forming machine, and the cost of the roll forming apparatus 1 can be increased by adding one roll type unit to one roll forming machine. Can be greatly reduced.

  In addition, the roll type unit is mounted in such a manner that the three roll type units in the upper middle stage and the lower stage are overlapped on the positioning holding part and the holding part of the respective roll stands of the first roll forming machine 24 to the eighth roll forming machine 31. Therefore, even a worker who does not have a special technique can easily attach it in a short time.

  Similarly, the roll type unit is detached from the upper and middle stages and the lower stage from the positioning and holding parts of the respective roll stands of the first roll forming machine 24 to the eighth roll forming machine 31. Is an easy task to do. Since the detached roll-type unit can be stored as it is until the next use, it is possible to prevent the parts from being lost.

  In this way, the roll-type unit 1 can be stored as a unit, and even an operator who does not have special technology can easily attach and detach it in a short time. It is a roll forming apparatus that can cope with the above.

  As described above, according to the roll type unit according to the present embodiment, the roll type unit includes the first and third roll stands including the positioning holding parts 163 and 165 having the insertion parts 162 and 164 opened upward. A roll type unit that rolls a metal plate by attaching two or more to second and fourth roll stands 6 and 8 having holding portions 167 and 169 having insertion portions 166 and 168 opened upwards 5 and 7. The first shaft body 50 having the driving force passive clutch gear 47 at one end thereof is pivotally held and provided adjacent to the driving force passive clutch gear 47, and the first and third roll stands 5, 7 are provided. A disc-shaped first rotation holding member 56 having a first contact circumferential portion 54 that is mounted and positioned from above, and is fixed to the first shaft body 50 adjacent to the first rotation holding member 56. A second roll mold 63 that is locked and molds the metal plate into a desired shape, and that rotates and holds the first shaft body 50 and is provided adjacent to the second roll mold 63, and second and fourth roll stands. A first roll type unit that is united with a disk-shaped second rotation holding member 68 having a second abutting circumferential portion 66 that is mounted and held on the upper side of 6 and 8 and is handled independently as a unit. 36 and the second shaft body 90 arranged in parallel with the first shaft body 50 are rotated and mounted on the first and third roll stands 5 and 7 from above to be positioned and held. The disc-shaped third rotation holding member 96 having a third contact circumferential portion 94 that contacts the contact circumferential portion 54 and the second shaft body 90 are fixedly locked, and the metal plate is second shaped into a desired shape. A third roll mold 100 which is jointly molded at a position facing the roll mold 63; A disc having a fourth abutting circumferential portion 103 that holds the body 90 in rotation and is mounted and held on the second and fourth roll stands 6 and 8 from above and abuts on the second abutting circumferential portion 66. And a second roll type unit 37 that is handled independently as a unit, and each of the first roll type unit 36 and the second roll type unit 37 is a unit. By mounting on the first and third roll stands 5 and 7 and the second and fourth roll stands 6 and 8 from above as a unit, the positions of the second roll mold 63 and the third roll mold 100 are determined, and by this mounting Due to the contact between the first contact circumferential portion 54 and the third contact circumferential portion 94 and the contact between the second contact circumferential portion 66 and the fourth contact circumferential portion 103, The gap of the third roll mold 100 is a desired gap. It was made to become.

  As a result, the roll type unit can be replaced independently for each unit of the first roll type unit 36 and the second roll type unit 37, so that the roll forming machine can replace and install only the piece member on the roll shaft. It is possible to eliminate the problems caused and to perform replacement work in a short time.

The first roll type unit 36 and the second roll type unit 37 are mounted on the first and third roll stands 6 and 8 and the second and fourth roll stands 6 and 8 from above, respectively, in units. The mutual positions of the second roll mold 63 and the third roll mold 100 are determined, the contact between the first contact circumferential portion and the third contact circumferential portion and the second contact circumferential portion and the second contact due to this mounting. Since the gap between the second roll mold 63 and the third roll mold 100 can be set to a desired gap by the abutment with the four abutting circumferential portions, the positions of the second roll mold 63 and the third roll mold 100 can be changed. And adjustment of the gap can be eliminated.
That is, the reproducibility can be improved every time the roll unit is replaced.

The members mounted through the first shaft body 50 of the first roll type unit 36 and the second shaft body 90 of the second roll type unit 37 are the center of the first shaft body 50 and the second shaft body 90. It is comprised by each shape or combination of a disk, a cylinder, and a cone which have the same axis center as the center.
Therefore, the side surfaces rotated 360 degrees around the axis of the first roll type unit 36 and the second roll type unit 37 all have the same shape and the directionality can be eliminated.
That is, it is not necessary to recognize the directionality when the first roll type unit 36 and the second roll type unit 37 are mounted on the first and third roll stands 5 and 7 and the second and fourth roll stands 6 and 8. Therefore, the installation work can be simplified.

Further, when the first shaft body 50 of the first roll mold unit 36 and the second shaft body 90 of the second roll mold unit 37 are assembled with the respective members, the first shaft body 50 and the second shaft body 90 are assembled. Each member can be mounted while standing.
Thereby, since it can be stored in a predetermined position by its own weight, assembly can be easily performed in a short time.
Furthermore, the first and second roll type units 36 and 37 can be simplified by the structure or combination of the discs, cylinders, and cones of each of the first and second roll type units 36 and 37, and the assembly can be simplified and shortened. , 37 can be reduced.

  Further, the second and third roll molds 63 and 100 are unitized, and the first and second roll mold units 36 and 37 are made non-directional by the configuration of the respective shapes or combinations of disks, cylinders, and cones. The replacement of the first and second roll type units 36 and 37 can be performed by standardized operations using a dedicated automatic machine.

Further, the unitized first roll type unit 36 and second roll type unit 37 are not disassembled and can be stored as units.
For this reason, it is possible to eliminate a situation in which the piece member is separated at the time of storage and lost or mixed with other piece members at the time of storage.

  Next, the roll type unit is a roll type unit that is mounted in a stacked manner on the first roll stand 5 to the fourth roll stand 8 and roll-forms a metal plate, and includes three first roll type units 36 to 3. A roll type unit 38 is used.

  The first roll type unit pivotally holds the first shaft body 50 having the driving force passive clutch gear 47 at one end and is provided adjacent to the driving force passive clutch gear 47. 5 and the first roll holding member 56 having a first contact circumferential portion 54 positioned and held by the third roll stand 7, and the first shaft body 50 adjacent to the first rotation holding member 56. The first roll mold 60 and the second roll mold 63 fixedly locked to the first roll body 63 and the first shaft body 50 are rotatably held and provided adjacent to the second roll mold 63. This is a first roll type unit 36 having a disk-shaped second rotation holding member 68 having a second abutting circumferential portion 66 held by the roll stand 8.

  The second roll-type unit rotates and holds the second shaft body 90 arranged in parallel with the first shaft body 50, and makes contact with the first contact circumferential portion 54 and the first roll stand 5. And the disk-shaped third rotation holding member 96 having the third contact circumferential portion 94 positioned and held by the third roll stand 7 and the second shaft body 90 are fixedly locked, and the metal plate is formed in a desired shape. The third roll mold 100 that is molded together with the second roll mold 63, the second shaft 90 is rotated and held, and the second abutment circumferential portion 66 is in contact with the second roll stand 6 and the second roll stand 6. A second roll type unit 37 having a disk-shaped fourth rotation holding member 105 including a fourth contact circumferential portion 103 held by the four roll stand 8.

  The third roll type unit rotates and holds the third shaft body 125 arranged in parallel with the first shaft body 50, and makes contact with the first contact circumferential portion 54 and the first roll stand 5. And the disk-shaped 5th rotation holding member 131 provided with the 5th contact circumferential part 129 positioned and hold | maintained at the 3rd roll stand 7, and the 3rd shaft body 125 fixedly latched, and a metal plate is made into desired shape. The fourth roll mold 135, which is molded in cooperation with the first roll mold 60, and the third shaft body 125 are rotated and held, and are in contact with the second contact circumferential portion 66, and the second roll stand 6 and the second roll stand 6. A third roll type unit 38 having a disc-shaped sixth rotation holding member 141 having a sixth contact circumferential portion 139 held by the four-roll stand 8 as one unit.

  Then, the first roll type unit 36 to the third roll type unit 38 are arranged in the order of the second roll type unit 37, the first roll type unit 36, and the third roll type unit 38 in the unit state from above. The metal plate is mounted on the stand 5 to the fourth roll stand 8, the metal plate is formed by the third roll mold unit 38 and the first roll mold unit 36, and the metal is formed by the first roll mold unit 36 and the second roll mold unit 37. The board is formed in the backward direction.

  As described above, the three first roll type units 36 to the third roll type unit 38 are stacked and mounted on the first roll stand 5 to the fourth roll stand 8 in the state of the unit, so that the double roll type Reciprocating roll forming can be performed without increasing the installation area as in a roll forming machine.

  Furthermore, the facilities are the first roll type unit 36 to the third roll type unit 38 in which one roll type unit is added in the same roll stand of the first roll stand 5 to the fourth roll stand 8. By performing the reciprocating roll forming, the equipment cost can be greatly reduced as compared with the double roll forming machine.

  The first roll type unit 36 to the third roll type unit 38 configured as described above are replaced by the units of the first roll type unit 36, the second roll type unit 37, and the third roll type unit 38. Since it can be performed in units, problems caused by a roll forming machine that replaces and attaches only the roll mold member to the roll shaft can be eliminated, and the replacement operation can be performed in a short time.

  Further, the respective members mounted through the first shaft body 50 of the first roll mold unit 36, the second shaft body 90 of the second roll mold unit 37, and the third shaft body 125 of the third roll mold unit 38 are as follows. The shaft center of the first shaft body 50, the shaft center of the second shaft body 90, and the shape, or combination, of a disc, a cylinder, and a cone having the same center as the shaft center of the third shaft body 125. .

Therefore, the side surfaces rotated 360 degrees around the axis of the first roll type unit 36, the second roll type unit 37, and the third roll type unit 38 all have the same shape, and the directionality can be eliminated.
That is, when the first roll mold unit 36, the second roll mold unit 37, and the third roll mold unit 38 are mounted on the first roll molding machine 24, it is not necessary to recognize the directionality, thereby simplifying the mounting operation. be able to.

  Further, the respective members are mounted on the first shaft body 50 of the first roll type unit 36, the second shaft body 90 of the second roll type unit 37, and the third shaft body 125 of the third roll type unit 38. When assembling, the respective members can be mounted with the first shaft body 50, the second shaft body 90, and the third shaft body 125 standing upright.

  Thereby, since it can be stored in a predetermined position by its own weight, the assembly can be easily performed in a short time, and each of the discs, cylinders and cones of the first roll type 60 to the fourth roll type 135 can be performed. The cost of the first roll type unit 36 to the third roll type unit 38 can be reduced by simplification of the structure by shape or combination, simplification of assembly, and shortening of opening time.

  In addition, the first roll type unit 36 to the third roll type unit 38 are unitized, and the first roll type unit 36 to the third roll type unit 38 are configured in a disc, a cylinder, or a conical shape or a combination of non-directions. The change of the first roll type unit 36 to the third roll type unit 38 can be automated by the sexualization.

The unitized first roll type unit 36, second roll type unit 37, and third roll type unit 38 are not disassembled and can be stored as units.
For this reason, it is possible to eliminate the occurrence of loss due to the pieces being separated at the time of storage and mixing with other roll-type members at the time of storage.

  Next, the first roll type unit 36 to the third roll type unit 38 are in contact with the first contact circumferential part 54 and the third contact circumferential part 94, and between the first contact circumferential part 54 and the fifth contact circumferential part 54. Contact between the contact circumferential portion 129, contact between the second contact circumferential portion 66 and the fourth contact circumferential portion 103, and contact between the second contact circumferential portion 66 and the sixth contact circumferential portion 139 The contact between the second roll mold 63 and the third roll mold 100 and the first roll mold 60 and the fourth roll mold 135 that are paired with each other is set to a desired gap.

  This is because of the contact between the first contact circumferential portion 54 and the third contact circumferential portion 94, the contact between the first contact circumferential portion 54 and the fifth contact circumferential portion 129, and the second contact. A second roll mold 63 that forms a pair with reference to the contact between the contact circumferential portion 66 and the fourth contact circumferential portion 103 and the contact between the second contact circumferential portion 66 and the sixth contact circumferential portion 139. And the third roll mold 100 and the first roll mold 60 and the fourth roll mold 135 are designed to have a desired gap.

  Therefore, simply the first contact circumferential portion 54 and the third contact circumferential portion 94, the first contact circumferential portion 54 and the fifth contact circumferential portion 129, and the second contact circumferential portion 66. And the fourth contact circumferential portion 103, the second contact circumferential portion 66, and the sixth contact circumferential portion 139 are in contact with each other to form a pair of the second roll mold 63, the third roll mold 100, and the first roll. The gap between the mold 60 and the fourth roll mold 135 can be set to a desired gap.

  In other words, the second roll mold 63 and the third roll mold 100, the first roll mold 60 and the fourth roll mold 4 can be exchanged without changing anything, even if the first roll mold unit 36 to the third roll mold unit 38 are replaced many times. The gap in the roll mold 135 can be reproduced as a desired gap.

  Next, the first roll mold 60 of the first roll mold unit 36 is provided with a first metal plate forming part 58 and a second metal plate forming part 59, and the fourth roll mold 135 of the third roll mold unit 38 is provided. Is provided with a fifth metal plate forming portion 133 that faces the first metal plate forming portion 58 and a sixth metal plate forming portion 134 that faces the second metal plate forming portion 59, and the The second roll mold 63 is provided with a third metal plate forming section 62, and the third roll mold 100 of the second roll mold unit 37 is provided with a fourth metal plate forming section 99 facing the third metal plate forming section 62. Is provided, at the time of reciprocal molding by the combination of the first roll mold unit 36 and the third roll mold unit 38 and the combination of the first roll mold unit 36 and the second roll mold unit 37, at least three members are simultaneously formed. B And to allow Le molding.

  As a result, the first roll type unit 36 to the third roll type unit 38 can be made to correspond to members having many roll forming processes, and also supports mass production of members that are roll formed into the same shape. In addition, the same number of members that are roll-formed into different shapes can be produced.

  As described above, the contact between the first contact circumferential portion 54 and the third contact circumferential portion 94, the contact between the first contact circumferential portion 54 and the fifth contact circumferential portion 129, A pair is formed on the basis of the contact between the second contact circumferential portion 66 and the fourth contact circumferential portion 103 and the contact between the second contact circumferential portion 66 and the sixth contact circumferential portion 139. The second roll mold 63 and the third roll mold 100, and the first roll mold 60 and the fourth roll mold 135 are designed so as to have a desired gap, so that the second roll mold 63 and the third roll mold that are paired with each other are designed. This is because no adjustment is made to the gap between the roll mold 100, the first roll mold 60, and the fourth roll mold 135.

  Next, the first roll forming machine 24 has a first insertion portion 162 which is erected from the base 23 and opened upward at the upper end portion of the side surface, and is provided with a first color positioning holding portion 163 subsequent thereto. 1 roll stand 5 and a third collar erected from the base 23 at a position facing the first roll stand 5 and having a third insertion portion 164 opened upward at the upper end of the side surface facing the roll. A third roll stand 7 provided with a positioning holding portion 165, a second insertion portion 166 that is erected from the base 23 and opened upward at the upper end of the side surface, followed by a first color holding portion 167 is provided. The second roll stand 6, and the fourth insertion portion 168 that is erected from the base 23 at a position facing the second roll stand 6 and opened upward at the upper end of the side surface facing the second roll stand 6. Second color holder 1 A fourth roll stand 8 provided with 9, a first contact reference surface 33 provided on a base 23 at the center between the first roll stand 5 and the third roll stand 7, and a second roll stand 6. And a second contact reference surface 35 provided on the base 23 at the center between the first and second roll stands 8 so as to be flush with the first contact reference surface 33.

  There are three roll type units mounted on the first roll stand 5 to the fourth roll stand 8, and the first roll type unit is a first shaft having a driving force passive clutch gear 47 at one end. The body 50 is rotated and held, and is provided adjacent to the driving force passive clutch gear 47, and is provided with a first contact circumferential portion 54 positioned and held by the first roll stand 5 and the third roll stand 7. The first rotation holding member 56, the first roll mold 60 and the second roll mold 63 fixedly locked to the first shaft body 50 adjacent to the first rotation holding member 56, and the first shaft body 50. A disk-shaped second rotation holding unit that is provided to be rotated and held adjacent to the second roll mold 63 and includes a second contact circumferential portion 66 that is held by the second roll stand 6 and the fourth roll stand 8. Member 68, and one unit That is the first roll-type unit 36.

  The second roll-type unit rotates and holds the second shaft body 90 arranged in parallel with the first shaft body 50, and makes contact with the first contact circumferential portion 54 and the first roll stand 5. And the disk-shaped third rotation holding member 96 having the third contact circumferential portion 94 positioned and held by the third roll stand 7 and the second shaft body 90 are fixedly locked, and the metal plate is formed in a desired shape. The third roll mold 100 that is molded together with the second roll mold 63, the second shaft 90 is rotated and held, and the second abutment circumferential portion 66 is in contact with the second roll stand 6 and the second roll stand 6. A second roll type unit 37 having a disk-shaped fourth rotation holding member 105 including a fourth contact circumferential portion 103 held by the four roll stand 8.

  The third roll type unit rotates and holds the third shaft body 125 arranged in parallel with the first shaft body 50, and makes contact with the first contact circumferential portion 54 and the first roll stand 5. And the disk-shaped 5th rotation holding member 131 provided with the 5th contact circumferential part 129 positioned and hold | maintained at the 3rd roll stand 7, and the 3rd shaft body 125 fixedly latched, and a metal plate is made into desired shape. The fourth roll mold 135, which is formed in cooperation with the first roll mold 60, and the third shaft body 125 are rotated and held, and are in contact with the second contact circumferential portion 66, the second roll stand and the fourth. A third roll type unit 38 having a disc-like sixth rotation holding member 141 having a sixth contact circumferential portion 139 held by the roll stand 8 as a single unit.

  The first roll forming machine 24 includes three first roll type units 36 to 36 which are attached to the first roll stand 5 to the fourth roll stand 8 via the first insertion part 162 to the fourth insertion part 168. For the third roll mold unit 38, first, the third contact circumferential portion 94 of the second roll mold unit 37 is replaced with the first contact reference surface 33 and the fourth contact circumferential portion 103 is replaced with the second contact reference surface. 35, the third contact circumferential portion 94 is positioned and held by the first color positioning holding portion 163 and the second color positioning holding portion 165, and the fourth contact circumferential portion 103 is held by the first color holding portion. 167 and the second color holding unit 169.

  Subsequently, the first roll forming machine 24 converts the first contact circumferential portion 54 of the first roll mold unit 36 into the third contact circumferential portion 94 and the second contact circumferential portion 66 into the fourth contact circle. The first abutting circumferential portion 54 is positioned and held by the first color positioning and holding portion 163 and the second collar positioning and holding portion 165, and the second abutting circumferential portion 66 is held by the first collar. It is held by the holding unit 167 and the second color holding unit 169.

  Further, the first roll forming machine 24 uses the fifth contact circumferential portion 129 of the third roll mold unit 38 as the first contact circumferential portion 54 and the sixth contact circumferential portion 139 as the second contact circumferential portion. The fifth contact circumferential portion 129 is positioned and held by the first color positioning and holding portion 163 and the second color positioning and holding portion 165, and the sixth contact circumferential portion 139 is held by the first color. Held in the portion 167 and the second color holding portion 169.

In order to fix and hold these states, the first roll forming machine 24 has a first fixed holding plate 40 attached to the upper portion of the first roll stand 5 to the fourth roll stand 8 by a holding plate fixing screw 39. The fifth abutting circumferential portion 129 and the sixth abutting circumferential portion using the first unit fixing screw 41 provided on the second unit fixing screw 43 and the second unit fixing screw 43 provided on the second fixing holding plate 42. By pressing 139, this state can be fixedly held.
Thus, the first roll forming machine 24 is in use.

With this configuration, the first roll type unit 36 to the third roll type unit 38 can be mounted on the first roll stand 5 to the fourth roll stand 8 from above, so that the first roll stand 5 to the fourth roll stand 8 can be mounted. Thus, the first roll stand 5 to the fourth roll stand 8 can be easily assembled.
Thereby, the cost reduction of the 1st roll molding machine 24 can be aimed at.

  Further, according to the above-described structure and configuration, the first roll type unit 36 to the third roll type unit 38 can be mounted on the first roll stand 5 to the fourth roll stand 8 from above, so that The third contact circumferential portion 94 and the first contact circumferential portion 54, the first contact circumferential portion 54 and the fifth contact circumferential portion 129, and the fourth contact circumferential portion 103 mounted from 3rd roll type 100, 2nd roll type 63, and 1st roll only by making 2nd contact circumference part 66, 2nd contact circumference part 66, and 6th contact circumference part 139 contact The gap between the mold 60 and the fourth roll mold 135 can be set without adjustment.

  Therefore, in the conventional roll forming machine, the roll type member already installed on the existing roll shafts of the plurality of roll stands installed at the site of the production line with the roll forming machine, and the prepared roll type member In the work to replace the roll holders, after disassembling a plurality of installed roll stands and removing the roll type members that have already been installed, several to dozens of roll type members must be attached to one roll shaft. As a result, the work is cumbersome and time consuming, and it was also skilled in adjusting the gap between roll-type members attached to parallel roll shafts, as well as problems that could not be easily reproduced in the state of previous adjustment. However, the above-described structure and configuration simplify the mounting process, which is a problem with conventional low load. It is possible to avoid the above-mentioned problems occurring in the molding machine.

As a result, it is possible to reduce the non-chargeable expenses caused by the difference in the skill level due to the work at the site of the production line with the roll forming machine.
Furthermore, the roll forming machine is expensive, and the work of exchanging the roll mold member is complicated, time consuming, and the concept that reproducibility is difficult can be wiped out.

  In addition, a first contact reference surface 33 and a second contact reference surface 35 having the same horizontal plane are provided, and the first contact reference surface 33, the first color positioning holding portion 163 of the first roll stand 5, and the third In the space formed by the second color positioning and holding portion 165 of the roll stand 7, the first contact reference surface 33, the third contact circumferential portion 94 of the second roll mold unit 37, and the third contact circumferential portion 94. And the first contact circumferential portion 54 of the first roll type unit 36, the first contact circumferential portion 54, and the fifth contact circumferential portion 129 of the third roll type unit 38 are brought into contact with each other.

  The second abutting reference surface 35 and the second abutting reference surface 35 in the space formed by the first color holding portion 167 of the second roll stand 6 and the second color holding portion 169 of the fourth roll stand 8 are provided. A fourth contact circumferential portion 103, a fourth contact circumferential portion 103 of the second roll type unit 37, a second contact circumferential portion 66, a second contact circumferential portion 66 of the first roll type unit 36; The sixth contact circumferential portion 139 of the third roll type unit 38 is brought into contact.

  Thereby, the horizontal parallelism of the 2nd shaft body 90 of the 2nd roll type unit 37, the 1st shaft body 50 of the 1st roll type unit 36, and the 3rd shaft body 125 of the 3rd roll type unit 38 is obtained, The third roll mold 100 of the second roll mold unit 37, the second roll mold 63 of the first roll mold unit 36, the first roll mold 60 of the first roll mold unit 36, and the fourth roll mold of the third roll mold unit 38. Since all the gaps formed by 135 become desired gaps, it is possible to prevent the occurrence of defective parts that are roll-formed without obtaining the parallelism of the roll axis.

  Furthermore, in order to hold the desired gap obtained as described above during the roll forming of the metal plate, a first holding plate 39 is attached to the upper part of the first roll stand 5 to the fourth roll stand 8. The first unit fixing screw 41 provided on the fixed holding plate 40 and the second unit fixing screw 43 provided on the second fixed holding plate 42 are connected to the fifth contact circumferential portion 129 of the third roll type unit 38. Since the sixth contact circumferential portion 139 is pressed, stable roll forming can be performed even during roll forming of the metal plate.

Next, in the first roll forming machine 24, the first roll type unit 36 to the third roll type unit 38 are connected to the first roll stand 5, the third roll stand 7, the second roll stand 6, and the fourth roll stand 8. They were installed from above in the state of being unitized.
In other words, the unit can be simply mounted from above.

  For this purpose, the third contact circumferential portion 94 of the second roll type unit 37 provided on the first roll stand 5 and the third roll stand 7, the first contact circumferential portion 54 of the first roll type unit 36, In addition, the first color positioning holding portion 163 and the second color positioning holding portion 165 for positioning and holding the fifth contact circumferential portion 129 of the third roll type unit 38, and the second roll stand 6 and the fourth roll stand 8 are provided. A fourth contact circumferential portion 103 of the second roll type unit 37, a second contact circumferential portion 66 of the first roll type unit 36, and a sixth contact circle of the third roll type unit 38. The first color holding part 167 and the second color holding part 169 holding the peripheral part 139 are provided perpendicular to the first roll stand 5, the third roll stand 7, the second roll stand 6 and the fourth roll stand 8. .

  As a result, there is no step that becomes an obstacle for mounting the second roll type unit 37, the first roll type unit 36, and the third roll type unit 38 to the end, so that the operation of the mounting operation can be simplified. it can.

  Next, the first roll forming machine 24 includes a third contact circumferential portion 94 of the second roll mold unit 37, a first contact circumferential portion 54 of the first roll mold unit 36, and a third roll mold unit. The fifth abutting circumferential portion 129 of the 38 is formed by the first color positioning holding portion 163 of the first roll stand 5, the first abutting reference surface 33, and the second color positioning holding portion 165 of the third roll stand 7. A first unit fixing screw 41 provided on a first fixing holding plate 40 which is mounted on the formed space from above and is attached to the upper part of the first roll stand 5 and the third roll stand 7 by a holding plate fixing screw 39. Is fixedly held by positioning.

  Subsequently, the fourth contact circumferential portion 103 of the second roll type unit 37, the second contact circumferential portion 66 of the first roll type unit 36, and the sixth contact circumference of the third roll type unit 38. The part 139 is mounted from above on the space formed by the first color holding part 167 of the second roll stand 6, the second contact reference surface 35, and the second color holding part 169 of the fourth roll stand 8. The second roll stand 6 and the fourth roll stand 8 are fixed and held by a second unit fixing screw 43 provided on a second fixing holding plate 42 attached by a holding plate fixing screw 39.

  At this time, the gap between the second roll mold 63 of the first roll mold unit 36 and the third roll mold 100 of the second roll mold unit 37 becomes a desired gap, and the first roll mold unit 36 that forms a pair. The gap between the first roll mold 60 and the fourth roll mold 135 of the third roll mold unit 38 is set to a desired gap.

  This is because the third contact circumferential portion 94 of the second roll type unit 37 provided on the first roll stand 5 and the third roll stand 7, the first contact circumferential portion 54 of the first roll type unit 36, Provided in the first color positioning holding portion 163 and the second color positioning holding portion 165 for positioning and holding the fifth contact circumferential portion 129 of the third roll type unit 38, and in the second roll stand 6 and the fourth roll stand 8. The fourth contact circumferential portion 103 of the second roll type unit 37, the second contact circumferential portion 66 of the first roll type unit 36, and the sixth contact circumferential portion 139 of the third roll type unit 38 are provided. The first color holding unit 167 and the second color holding unit 169 to be held are provided perpendicularly to the first roll stand 5 and the third roll stand 7 and the second roll stand 6 and the fourth roll stand 8, thereby 2 b Le type unit 37, indicates that the first roll-type unit 36, the mounting of the third roll-type unit 38 can be performed by a vertical stacking method.

  Therefore, in the space formed by the first color positioning / holding portion 163 of the first roll stand 5, the first contact reference surface 33, and the second color positioning / holding portion 165 of the third roll stand 7, the first contact is made. Contact between the reference surface 33 and the third contact circumferential portion 94 of the second roll type unit 37, and between the third contact circumferential portion 94 and the first contact circumferential portion 54 of the first roll type unit 36 Abutting, abutting between the first abutting circumferential portion 54 and the fifth abutting circumferential portion 129 of the third roll type unit 38; and a first collar holding portion 167 of the second roll stand 6; In the space formed by the contact reference surface 35 and the second collar holding portion 169 of the fourth roll stand 8, the second contact reference surface 35 and the fourth contact circumferential portion 103 of the second roll type unit 37 Contact, the fourth contact circumferential portion 103 and the first roll type uni The second roll mold is brought into contact with the second abutting circumferential part 66 of the second roller 36 and the abutting of the second abutting circumferential part 66 with the sixth abutting circumferential part 139 of the third roll mold unit 38. The third roll mold 100 of the unit 37 and the second roll mold 63 of the first roll mold unit 36, the first roll mold 60 of the first roll mold unit 36 and the fourth roll mold 135 of the third roll mold unit 38 are formed. All the gaps are set to the desired gaps without adjustment by the weights of the second roll type unit 37, the first roll type unit 36, and the third roll type unit 38 without the need for position adjustment after mounting. be able to.

  Next, the first roll forming machine 24 converts the first roll type unit 36 to the third roll type unit 38 into the first roll stand 5 and the third roll stand 7, and the second roll stand 6 and the fourth roll stand. 8, the second roll type unit 37, the first roll type unit 36, and the third roll type unit 38 are sequentially mounted and positioned and held in the unitized state in order of the first roll stand. A first unit fixing screw 41 provided on a first fixing holding plate 40 attached to the upper part of the fifth to fourth roll stands 8 by a holding plate fixing screw 39 and a first fixing screw provided on a second fixing holding plate 42. While fixing with the 2 unit fixing screw 43, the third roll mold unit 38 and the first roll mold unit 36 perform the outward forming of the metal plate, and the first roll And to perform backward forming of the metal plate by the unit 36 and the second roll-type unit 37.

  As described above, the three first roll type units 36 to the third roll type unit 38 are stacked and mounted on the first roll stand 5 to the fourth roll stand 8 in the state of the unit, so that the double roll type The reciprocating roll forming can be performed without increasing the installation area like a roll forming machine.

That is, the roll forming ability can be doubled by adding one roll type unit without increasing the installation area.
Note that the number of roll-type units attached to the first roll stand 5 to the fourth roll stand 8 is not limited to three, and roll forming can be performed even with four or more by improving the driving unit.

  Furthermore, the facilities are the first roll type unit 36 to the third roll type unit 38 in which one roll type unit is added in the same roll stand of the first roll stand 5 to the fourth roll stand 8. Since reciprocating roll forming is possible, the equipment cost can be greatly reduced as compared with the double roll forming machine.

  Next, in the first roll forming machine 24, the first roll mold 60 of the first roll mold unit 36 is provided with a first metal plate forming part 58 and a second metal plate forming part 59, and a third roll mold unit. The fourth roll die 135 of 38 is provided with a fifth metal plate forming portion 133 facing the first metal plate forming portion 58 and a sixth metal plate forming portion 134 facing the second metal plate forming portion 59, and The second roll mold 63 of the first roll mold unit 36 is provided with a third metal plate forming portion 62, and the third roll mold 100 of the second roll mold unit 37 is opposed to the third metal plate forming portion 62. By providing the fourth metal plate forming section 99, the reciprocal forming by the combination of the third roll mold unit 38 and the first roll mold unit 36 and the combination of the first roll mold unit 36 and the second roll mold unit 37 is performed. At least 3 The member is to be able to roll simultaneously molded.

  Thereby, first, it is possible to cope with a member having many roll forming steps by combining three roll forming steps.

  Furthermore, the three roll forming processes can be made into a process that can be roll-formed into the same shape, and can be adapted to mass production.

  Further, the same number of parts having different shapes used for one product can be simultaneously roll-formed to cope with shortened delivery times.

In addition, this invention is not limited to such embodiment at all, and can be implemented with various aspects in the range which does not deviate from the summary of this invention.
For example, each of the first roll forming machine 24 to the eighth roll forming machine 31 is mounted with an upper middle stage and a lower stage and three roll type units, but the upper middle stage and the two roll type units perform return path molding. The two roll-type units in the middle and lower stages may perform forward path molding.

5 First Roll Stand 6 Second Roll Stand 7 Third Roll Stand 8 Fourth Roll Stand 23 Base 24 First Roll Forming Machine 33 First Contact Reference Surface 35 Second Contact Reference Surface 36 First Roll Type Unit 37 Second roll type unit 38 Third roll type unit 39 Holding plate fixing screw 40 First fixed holding plate 41 First unit fixing screw 42 Second fixed holding plate 43 Second unit fixing screw 47 Driving force passive clutch gear 50 First shaft Body 54 First contact circumferential portion 56 First rotation holding member 58 First metal plate forming portion 59 Second metal plate forming portion 60 First roll die 62 Third metal plate forming portion 63 Second roll die 66 Second Contact circumferential portion 68 Second rotation holding member 90 Second shaft 94 Third contact circumferential portion 96 Third rotation holding member 99 Fourth metal plate forming portion 100 Third roll mold 103 Fourth Contact circumferential portion 105 Fourth rotation holding member 125 Third shaft 129 Fifth contact circumferential portion 131 Fifth rotation holding member 133 Fifth metal plate forming portion 134 Sixth metal plate forming portion 135 Fourth roll type 139 6th contact circumference part 141 6th rotation holding member 162 1st insertion part 163 1st color positioning holding part 164 3rd insertion part 165 2nd color positioning holding part 166 2nd insertion part 167 1st color holding part 168 Fourth insertion portion 169 Second collar holding portion 175 First hook portion 176 Second hook portion

Claims (1)

Two or more first and third roll stands having positioning holding portions having an insertion portion opened upward and second and fourth roll stands having a holding portion having an insertion portion opened upward are metal A roll mold unit for roll forming a plate,
The first and third roll stands are provided adjacent to the drive connecting portion while rotating and holding the first connecting member having the first reference step in contact with the driving connecting portion and the drive connecting portion at one end. A disc-shaped first rotation holding member having a first abutting circumferential portion that is mounted and positioned from above, and is fixedly locked to the first shaft body adjacent to the first rotation holding member. A first roll mold for forming the metal plate into a desired shape, and the first shaft body is pivotally held and provided adjacent to the first roll mold, and is disposed above the second and fourth roll stands. A first roll type unit that is united with a disc-shaped second rotation holding member having a second contact circumferential portion that is mounted and held from the first roll type unit;
The second shaft body, which is arranged in parallel with the first shaft body and has a second reference step in the vicinity of the end portion, is rotated and held, and is mounted on the first and third roll stands from above and positioned. A disc-shaped third rotation holding member that is held and has a third abutting circumferential portion that abuts on the first abutting circumferential portion, and is fixedly locked to the second shaft body, and the metal plate is desired. A second roll mold that is jointly molded in a shape opposite to the first roll mold, and the second shaft body is rotated and held, and is mounted on the second and fourth roll stands from above. A second roll type unit that is held and unitized with a disk-shaped fourth rotation holding member having a fourth abutting circumferential portion that abuts on the second abutting circumferential portion, and is handled independently in units. When,
With
In the first roll type unit, the first rotation holding member is inserted through the first shaft body until the first rotation holding member comes into contact with the first reference step, and the first roll type and the second rotation holding member are inserted into the first shaft. Through the body, positioning the first rotation holding member, the first roll mold and the second rotation holding member in the first shaft body with reference to the first reference step,
In the second roll type unit, the third rotation holding member is inserted into the second shaft body until it abuts on the second reference step, and the second roll type and the fourth rotation holding member are moved to the second axis. Through the body, positioning the third rotation holding member, the second roll mold and the fourth rotation holding member in the second shaft body with reference to the second reference step,
The first roll type unit and the second roll type unit are mounted on the first and third roll stands and the second and fourth roll stands from above, respectively, by unit. The mutual position of the two-roll type is determined, and the first contact circumferential portion and the third contact circumferential portion are contacted by the mounting, and the second contact circumferential portion and the fourth contact circle are mounted. A roll type unit characterized in that a gap between the first roll type and the second roll type facing each other becomes a desired gap by contact with a peripheral portion.

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