JP2741149B2 - Ribbing equipment in metal roofing roll forming machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rib forming device in a metal roofing roll forming machine, and more particularly, to a long baked and painted metal sheet, and forming the metal sheet into a required cross-sectional shape. In a metal roofing sheet roll forming machine for continuously forming and forming a metal roofing sheet member between forming rolls of a step, the present invention relates to a rib attaching device for forming the metal roofing sheet member in an arch shape. is there.

[0002]

2. Description of the Related Art Generally, a metal roofing sheet member which is applied to this kind of roof having a cylindrical shell structure and is curved in an arch shape during construction is long as shown in FIGS. 7 (A) to 7 (E). By using a baking-painted thin metal steel plate of the length, the longitudinal direction a
The single groove 1 formed at the center along the center, or the plurality of grooves 2 formed at the center parallel to each other along the longitudinal direction a, and the corresponding groove 1 in the former groove 1 The left and right side edges of each of the grooves 2 are a set of right and left inclined walls 3, which are formed by diverging from the left and right side edges to the upper side along the longitudinal direction a. From the upper end along the longitudinal direction a, and are connected to each other at the upper part between the grooves 2 to form the outermost end groove 2
And a pair of right and left rising sloping wall portions 4 formed on the uppermost side of the pair of right and left rising sloping wall portions 3 and 4 at the outermost end sides. It has a transverse cross-sectional shape having a series of joint engagement portions 5 formed so as to be connectable and connectable, and is orthogonal to the longitudinal direction a on the groove surfaces of these groove portions 1 or each groove portion 2. The ribs 6 are formed by connecting and forming the ribs 6 each having an uneven shape in a longitudinal section, which is a fold for forming an arch in the short direction b.

[0003] In the case of manufacturing a metal roofing sheet member from the long baked coated thin metal steel sheet, the following is performed. That is, for each part which has the groove part 1 or each groove part 2, each rising slope wall part 3, 4 and each seaming engagement part 5 and is shaped into a predetermined longitudinal cross section, Since each part is formed along the longitudinal direction a of the long baked painted metal thin steel sheet as a material, these parts 1 to 5 are mechanically and continuously formed by a plurality of stages of forming roll rows. That is, what is called continuous roll forming is possible. On the other hand, each rib portion 6 formed in the groove surface of the groove portion 1 or each groove portion 2 into a concave and convex shape in the short side direction b has a long baking-coated metal thin steel plate as a material. Since it must be formed continuously in the short direction b perpendicular to the long direction a, it is formed mechanically and continuously by roll forming together with each of the parts 1 to 5 of the cross section in the long direction a. What is performed is, for example, the forming movement speed V1 in each of the portions ₁ to 5 having the transverse cross-sectional shape in the longitudinal direction a and the forming movement speed V1 due to the provision of the unevenness in each of the rib portions 6 in the short-side direction b. ₂ is inevitably different, that is, the speed V ₁ and the speed V ₂ are in a relationship of V ₁ > V ₂ , and in addition to the connection of the concavo-convex shape on the groove surface in each of the rib portions 6. , Each joint engagement portion 5
Even if the point where the groove 1 or each groove 2 side is gradually narrowed down compared to the side and the whole member is involuntarily bent to the groove 1 or each groove 2 side without control is taken up, it is actually It is very difficult as the above problem. For example, the grooves 1 and 2 as the respective parts 1 to 5 of the cross section in the longitudinal direction a, the respective rising sloping wall parts 3 and 4, and the respective joint engaging parts 5 are respectively formed. In the last stage of the former forming roll row to obtain a predetermined longitudinal direction a cross-sectional shape by shaping,
On the groove surfaces of the groove portions 1 and 2, a rear-side forming roll for forming a predetermined short-direction b vertical cross-sectional shape by connecting and forming each rib portion 6 having a short-direction b vertical cross-section uneven shape is arranged, Simply maintaining the speeds of the _{two in} a relationship of V ₁ ≒ V ₂ , FIG.
As shown in FIG. 8 (A), each rib 6 may be deformed due to the difference in shaping force between the two, or FIG.
As shown in (B), there is a concern that scratches may occur on the front and back surfaces of each rib portion 6. 6
Is formed again by another process after continuous roll forming at each of the portions 1 to 5 having the cross section shape in the longitudinal direction a.

[0004] Incidentally, in the metal roofing plate member thus configured, for example, by using a suitable forming jig or the like as an auxiliary tool, the individual rib portions 6 are narrowed down to each other to form a fold portion. Then, the entire member is bent into a predetermined arch shape, and the roof structure is laid up so as to conform to a desired cylindrical shell structure roof.

[0005]

The conventional metal roofing plate member for forming a curved shape in a loop shape using a long baked coated metal thin steel plate is constituted as described above, as described above. In the meantime, the respective portions 1 to 5 having the cross-sectional shape in the longitudinal direction a can be continuously roll-formed, but the respective rib portions 6 having the uneven shape in the short-side direction b cannot be roll-formed, particularly, cannot be continuously roll-formed simultaneously. Since the production of the metal roofing plate member is performed in two stages, not only is it extremely laborious, but also a uniform product cannot be obtained in terms of shape, but the production unit price is also expensive. It was inconvenient.

The present invention has been made to solve such a conventional problem, and an object of the present invention is to provide a longitudinal traverse formed by using a long baked painted thin metal sheet. According to the continuous roll forming of the groove, each rising slope wall, and each seam engaging part as the part of the surface shape, the continuous shaping at each rib part with a longitudinal cross section in the short direction is also performed simultaneously. An object of the present invention is to provide a rib forming device in a metal roofing sheet roll forming machine of this type, which can be roll formed.

[0007]

In order to achieve the above-mentioned object, a rib attaching device in a metal roofing sheet roll forming machine according to the present invention comprises a groove as each part having a longitudinal cross-sectional shape, each rising sloping wall, And at the final stage of the former-stage forming roll row to form a predetermined longitudinal cross-sectional shape by shaping the respective seaming engagement portions respectively, and to form a short-side vertical cross-sectional unevenness on the groove surface of the groove portion. Each of the ribs is connected and formed to form a rear-side forming roll stage to obtain a predetermined longitudinal cross-sectional shape, and the latter is formed in accordance with the forming rotational speed of the former former-stage forming roll row. A one-way clutch is provided as a synchronization interlocking mechanism that tunes and controls the shaping rotation speed of the side forming roll stage, and the shaping rotation of the preceding forming roll stage is provided at the take-out stage of the rear forming roll stage. Rotational drive linked to speed It is one in which the bending degree of the entire member to be flexed with the articulated excipient shape of each rib portion provided with a bending straightening rolls stage corrects.

[0008] That is, the first invention of the present invention forms at least a groove portion along a longitudinal direction of a thin metal steel sheet and a rising slope wall portion rising upward from a side edge of the groove portion. Following the last stage of the former-stage forming roll row, the former-stage forming roll row to be formed, and the second-stage forming step of continuously forming an uneven rib portion on the groove surface of the groove portion in a direction orthogonal to the longitudinal direction. A roll stage is provided, and the start is performed in response to a difference in the forming movement amount that decreases with the continuous forming of each rib portion in the rear forming roll stage with respect to the forming movement amount of the preceding forming roll row. A rib forming device in a metal roofing sheet roll forming machine, wherein the latter forming roll stage can be rotationally driven via a one-way clutch in which a reference value is set.

In a second aspect of the present invention, at least a groove is formed along a longitudinal direction of a material thin metal plate, and a rising inclined wall is formed from a side edge of the groove to an upper side. Following the last stage of the former-stage forming roll row, the former-stage forming roll row to be formed, and the second-stage forming step of continuously forming an uneven rib portion on the groove surface of the groove portion in a direction orthogonal to the longitudinal direction. A roll stage is provided, and a bending straightening roll stage that corrects the degree of bending of the entire member to be formed is provided at a take-out stage of the rear-stage forming roll stage, and the bending stage is formed by rotating the front-stage forming roll row. The interlocking of the bending straightening roll stages, and the forming movement that decreases with the continuous forming of each rib portion in the rear forming roll stage with respect to the forming movement amount of the preceding forming roll row or the bending straightening roll stage. Corresponding to the difference in travel distance Via the one-way clutch set a power reference value, a ribbed device in metal shingle roll forming machine, characterized in that the said second-stage forming rolls stage adapted to be rotationally driven.

[0010]

Therefore, according to the first aspect of the present invention, at least the groove and the rising edge which rises from the side edge of the groove to the upper side along the longitudinal direction of the thin metal steel sheet by the former-stage forming roll row. After the beveled wall is formed and formed, the material metal thin steel sheet sent out at a predetermined moving speed is synchronized with the feeding speed at a speed that is synchronized with the feeding speed, and is formed on the groove surface of the groove by a later-stage forming roll stage. The ribs can be connected and formed, and in the second invention of the present invention, the vertical position can be adjusted in accordance with the formation of each rib on the groove surface of the groove. The bending straightening roll stage can arbitrarily correct the degree of bending of the formed metal roofing sheet member toward the groove.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a rib attaching device in a metal roofing roll forming machine according to the present invention will be described below in detail with reference to FIGS.

FIG. 1 is an overall perspective view conceptually showing the configuration of a rib attaching apparatus to which this embodiment is applied. FIG. 2 is a front side for forming and forming each part having a predetermined longitudinal cross-sectional shape. Description of end faces showing the arrangement of a forming roll row, a post-forming side forming roll stage for shaping each rib portion by a predetermined transverse longitudinal unevenness, and a bending straightening roll stage for correcting the degree of bending of the entire member. FIG. 3 and FIG. 3 are partial perspective views showing the rotary drive system of the rear-stage forming roll stage of the above. FIG. 4 is an overall perspective view showing a schematic configuration of a metal roof plate member formed and formed by the above embodiment, and FIG.
FIG. 6 is a perspective explanatory view showing the concept of each rib attaching part, and FIG. 6 is an end face explanatory view showing the dimensional relationship of each rib attaching part.

As described above, there are many types of metal roofing sheet members which are applied to this kind of roof having a cylindrical shell structure and are curved in an arch shape at the time of construction. Using a baking-coated metal thin steel plate of a length, the ribs formed along the longitudinal direction are formed by connecting each of the ribs having an uneven shape in the short direction orthogonal to the longitudinal direction. For convenience of explanation, FIG.
Will be described (corresponding to the form A in FIG. 7).

That is, as shown in FIG. 4, the metal roofing sheet member for forming the arch used in this embodiment is formed of a long baked painted thin metal sheet along the longitudinal direction a. A groove portion 1 formed at a central portion; a pair of right and left rising sloping wall portions 3 formed by diverging from the left and right side edge portions of the groove portion 1 to the upper side along the longitudinal direction a; A seam engaging portion 5 formed on the upper part of the rising inclined wall portion 3 so as to be appropriately connected and connectable between adjacent members along the longitudinal direction a is formed into a cross-sectional shape having a series of shapes. On the groove surface of the groove portion 1, each rib portion 6 having a vertical cross-section uneven shape which becomes a fold portion for forming an arch at the time of construction is formed in a connected state toward a short direction b orthogonal to the longitudinal direction a. In this case, it is preformed.

Therefore, after forming in such a cross-sectional shape having a series of the groove portions 1, the respective sloping wall portions 3, and the respective joint engagement portions 5, each rib portion is formed on the groove surface of the groove portion 1. 5 and FIG. 6 by forming and shaping 6 in a connected state.
As shown in the figure, the movement of the metal thin steel plate in the former during the forming of the entire member is different from the movement in the latter in the forming of the ribs 6 connected to the groove 1 in the latter. The distance is reduced for each pitch L of the corresponding rib portion 6, and with the provision of the uneven shape in each rib portion 6,
When comparing with the length of each joint engagement portion 5 side, the groove 1
Since the length of the metal roof plate member after molding is reduced corresponding to the shortened length, the groove 1
It will bend to the side.

As shown in FIGS. 1 to 3, the metal roofing sheet roll forming machine 10 has grooves 1, 1, 2, 3, 4, 4, 5, 6, 7, 8, 7, 8, 7, 8, 9, 8, 9, 8, 9, 8, 9, 8, 9. A former-stage forming roll row having a well-known configuration including a plurality of stages for forming each of the rising sloping wall portion 3 and each of the seaming engagement portions 5 to obtain a predetermined longitudinal cross section a (see FIG. (Not shown) is provided, and 1 corresponding to the last stage side of the former-stage forming roll row, that is, the last stage side.
Subsequent to the former-stage forming roll stage 11 composed of a combination of the member forming rolls 12a and 12b and the driving gears 13a and 13b, each of the irregular cross-sections in the longitudinal direction b on the groove surface of the groove portion 1 is formed. A rear-stage forming roll stage for forming the rib portion 6 by continuous forming to obtain a predetermined longitudinal cross section b, in this case, a set of rib setting rolls 22a, 22b
And a rear-stage forming roll stage 21 composed of a combination of the driving gears 23a and 23b, and a bending stage for correcting the degree of bending of the entire member to be formed at the take-out stage of the rear-stage forming roll stage 21. In the straightening roll stage, a bending straightening roll stage 31 composed of a combination of a pair of bending straightening rolls 32a and 32b and their driving gears 33a and 33b is arranged so that the vertical position can be adjusted.

On the other hand, in this case, the former-stage forming roll stage 1
Each of the rotary drive systems in the first-stage forming roll stage 21 and the bending straightening roll stage 31 may be configured such that, for example, a combination of a drive sprocket and a drive chain causes the rotation driving force on the first-stage forming roll stage 11 to be adjusted. After being transmitted to the bending straightening roll stage 31, it is transmitted to the rear-stage forming roll stage 21 via a one-way clutch as a synchronizing interlocking mechanism 41 that synchronizes with the rotation drive and absorbs a rotational difference. .

Here, the one-way clutch as the synchronizing interlocking mechanism 41 is provided in the rear-stage forming section with respect to the moving distance of the raw metal sheet at the time of forming the entire member by the front-stage forming roll stage 11. The difference in the movement distance of the thin metal sheet at the time of forming each rib portion 6 into the groove portion 1 by the roll stage 21, and, consequently, the rotation speed of the former-stage forming roll stage 11 is changed by the latter-stage forming roll stage 21. By absorbing the difference in rotational speed during shaping, the former-stage forming roll stage 11
In order to smoothly and smoothly form the respective rib portions 6 on the groove surface of the groove portion 1 by the rear-stage forming roll stage 21 in accordance with the forming feed speed by
Specifically, the starting reference value corresponds to the difference between the forming movement amount of the front-side forming roll stage 11 and the forming movement amount that decreases with the shaping of each rib 6 in the rear-side forming roll stage 21. Is set and used in the drive sprocket 42.

That is, here, the starting reference value of the one-way clutch is set lower than the forming moving speed of the former-stage forming roll stage in advance, and in this state, the material metal which has advanced through the former-stage forming roll stage is set. When the thin steel sheet passes through the rear forming roll stage, the starting reference value of the one-way clutch is set lower than the forming moving speed of the front forming roll stage. Rotates, but the one-way clutch turns around due to its characteristics. Here, the sheet metal steel sheet passing through the latter forming roll stage rotates the latter forming roll stage by its own force (that is, the forming moving speed of the latter forming roll stage is the moving speed of the former forming roll stage. Synchronized with.)
Therefore, when the rib portion is formed, the rib portion is deformed,
There is no scratch. Then, after that, the latter forming roll stage gives resistance to the incoming material thin steel sheet, so that the approach speed of the material thin steel sheet gradually decreases, and the approach speed of the material thin metal sheet is predicted. At this time, the start reference value of the one-way clutch coincides with the set reference value. At that time, the subsequent-stage forming roll stage itself starts to rotate and starts to extrude the thin metal steel sheet. Here, the material metal thin steel sheet does not enter the rear-side forming roll stage at a speed higher than or equal to the forming-transfer speed of the rear-side forming roll stage (that is, the forming-movement speed of the front-stage forming roll stage is It is synchronized with the forming movement speed of the step.), So that the rib portion of the thin metal steel sheet is not deformed or scratched.

As described above, in the rear-side forming roll stage 21 which is driven to rotate from the former-stage forming roll stage 11 via the one-way clutch as the tuning interlocking mechanism 41 after passing through the bending straightening roll stage 31, The raw metal thin steel plate formed and fed into a cross-sectional shape having a series of grooves 1, each rising sloping wall section 3, and each seaming engagement section 5 by the former-stage forming roll stage 11 is formed in the groove section. The ribs 6 can be easily and accurately formed in a connected state by the speed synchronized with the feeding speed on the groove surface of the groove 1 and the ribs 6 can be formed on the groove surface of the groove 1 in this manner. The formed metal roofing sheet member which is bent toward the groove portion 1 by shaping is formed by the bending straightening roll stage 31 whose upper and lower positions can be adjusted so that the bending degree becomes a desired value. It can be corrected.

[0021]

As described above in detail with reference to the embodiments,
According to the present invention, there is provided a former-stage forming roll row for forming at least a groove along a longitudinal direction of a raw metal thin steel sheet, and a rising inclined wall portion rising upward from a side edge of the groove. Then, following the last stage side of the former-stage forming roll row, a second-stage forming roll stage for continuously forming an uneven rib portion in a direction orthogonal to the longitudinal direction on the groove surface of the groove portion is provided, and the first-stage forming roll line Through a one-way clutch as a synchronizing interlocking mechanism that synchronizes with the rotational drive and absorbs the rotational difference, the rear-stage forming roll stage can be driven to rotate. After forming the groove and the rising slope, the raw metal steel sheet sent out at a predetermined moving speed is
At the speed synchronized with the feeding speed, each rib can be connected to the groove surface of the groove by the subsequent forming roll stage and can be preformed properly, and the metal formed in a loop at the time of construction A bending straightening roll which has an excellent advantage that a roofing sheet member can be easily manufactured in one step, and a straightening roll for correcting the degree of bending of the whole formed member at a take-out stage of a subsequent forming roll stage. Synchronized interlocking mechanism that provides a step and interlocks the bending straightening roll stage with the rotation drive of the front forming roll row, and then synchronizes with the rotation driving of the front forming roll row or the bending straightening roll stage to absorb the rotational difference. Through the one-way clutch as, so that the subsequent forming roll stage can be driven to rotate, according to the shape of each rib on the groove surface of the groove, by the bending straightening roll stage,
There is a feature that the degree of bending of the molded metal roofing plate member toward the groove can be easily and arbitrarily corrected.

[Brief description of the drawings]

FIG. 1 is an overall perspective view conceptually showing a configuration of a rib attaching apparatus to which an embodiment of the present invention is applied.

FIG. 2 shows a former forming roll row for forming and shaping each part with a predetermined longitudinal cross-sectional shape and a latter forming roll for forming each rib part with a predetermined short longitudinal unevenness in the above embodiment. It is an end surface explanatory view which shows each arrangement | positioning mode of the step and the bending straightening roll step which corrects the degree of bending of the whole member.

FIG. 3 is a partial perspective view showing a rotary drive system of a latter-stage forming roll stage in the embodiment.

FIG. 4 is an overall perspective view showing a schematic configuration of a metal roof plate member formed and shaped according to the embodiment.

FIG. 5 is a perspective explanatory view showing a concept of each rib attaching portion in the embodiment.

FIG. 6 is an explanatory end view showing a dimensional relationship of each rib attaching portion in the embodiment.

FIG. 7 is an overall perspective view showing a schematic configuration of a metal roof plate member according to each of the conventional general examples.

FIG. 8 is a partial perspective view showing the inconvenience caused by the shaping of each rib attaching portion on the metal roof plate member.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Groove part 3 Rise slope wall part 5 Joining engagement part 6 Rib part a Longitudinal direction b Short direction orthogonal to a longitudinal direction 10 Metal roofing sheet roll forming machine 11 Front side forming roll stage 12a, 12b Member forming roll 13a, 13b Driving gear 21 Back-stage forming roll stage 22a, 22b Ribbing roll 23a, 23b Driving gear 31 Bending straightening roll stage 32a, 32b Bending straightening roll 33a, 33b Driving gear 41 Tuning interlocking mechanism 42 Built-in one-way clutch Drive sprocket

Claims (3)

(57) [Claims] 1. A pre-forming roll row for forming at least a groove along a longitudinal direction of a raw metal thin steel sheet and a rising inclined wall portion rising upward from a side edge of the groove. Following the last stage side of the former-stage forming roll row, a rear-stage forming roll stage for continuously forming a concave-convex rib portion in a direction orthogonal to the longitudinal direction on the groove surface of the groove portion is provided. For the forming movement amount of the former side forming roll row,
The rear-side forming roll stage can be rotationally driven via a one-way clutch in which a starting reference value is set in accordance with the difference in the amount of forming movement that decreases with the continuous forming of each rib portion in the rear-side forming roll stage. A rib attaching device in a metal roofing roll forming machine, characterized in that: 2. A pre-forming roll row for forming at least a groove portion along a longitudinal direction of a thin metal steel sheet and a rising inclined wall portion rising upward from a side edge of the groove portion. Following the last stage side of the former-stage forming roll row, a second-stage forming roll stage for continuously forming a concave-convex rib portion in a direction orthogonal to a longitudinal direction on the groove surface of the groove portion is provided, and the second-stage side is provided. In the take-out stage of the forming roll stage, a bending straightening roll stage for correcting the degree of bending of the entire member to be formed is provided, and the bending straightening roll stage is interlocked with the rotation drive of the former-stage forming roll row. Then, the starting is performed in accordance with the difference in the forming movement amount of the preceding forming roll row or the bending straightening roll stage with the forming movement amount that decreases with the continuous forming of each rib portion in the subsequent forming roll stage. One-way with reference value set A rib forming apparatus for a metal roofing sheet roll forming machine, wherein the latter forming roll stage can be driven to rotate via an clutch. 3. The rib forming apparatus in a metal roofing roll forming machine according to claim 2, wherein the bending straightening roll stage is provided so as to be adjustable in position.