JPH07112578B2 - Flange / corner piece mounting device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for forming a flange portion of a rectangular duct manufactured by sheet metal processing, and more specifically, a missing portion formed at a flange corner of a flange portion formed by bending a duct constituent material. The present invention also relates to a flange / corner piece mounting device for mounting a corner piece for reinforcing the flange portion.

[0002]

2. Description of the Related Art A flange is formed for each structural unit in order to connect ducts manufactured for each structural unit to each other or to connect to a mounting position. A conventional configuration for forming a flange when a duct is manufactured by sheet metal working will be described below. In the configuration shown in FIG. 13, the angle frame member 31 is attached to the end portion of the duct 30, so that the angle frame member 31 forms the flange portion 32. The angle frame member 31 is attached to the duct 30 by means such as rivet fastening.
And the edge of the duct 30 is bent on the flange forming surface of the angle frame member 31 to complete the flange-formed duct 30. In the case of the above configuration, there are problems such as an increase in the number of work steps for attaching the angle frame member 31, an increase in the overall weight, and an increase in cost, and in order to improve these problems, a means for forming a flange by a sheet metal member forming a duct Is adopted. As shown in FIG. 14, the end portion of the duct 33 is bent outward to form a flange forming surface 36. In this case, since the missing portion 34 is formed at each corner portion, an L-shaped corner piece 35 is attached to each corner portion in order to complement the missing portion 34. The corner piece 35 is integrated with the flange forming surface 36 by being fitted on the flange forming surface 36. FIG. 15 shows a sectional view of the flange forming surface 36 of the duct 33 and the corner piece 35. A rib 37 corresponding to the height h of one side of the corner piece 35 is formed on the duct surface side, and an edge portion of the flange forming surface 36 is formed. Has
A rising portion 38 is formed by folding back the end portion. As shown in FIG. 15B, when the corner piece 35 is press-fitted between the rising portion 38 and the rib 37, the corner piece 35 fits on the flange forming surface 36. Further, as shown in FIG. 15C, by bending the rising portion 38 onto the corner piece 35, the corner piece 35 is fixed and the flange forming surface 36 and the corner piece 35 are integrated. By the above processing, the missing parts 34 at each corner of the flange forming surface 36 are complemented by the corner pieces 35, and the flange forming surface 36
Is reinforced, and the duct 33 in which the flange is formed is completed. The attachment of the corner piece 35 is manually processed using a hammer or the like.

[0003]

Forming a flange by bending the above-mentioned duct constituting surface is an excellent means for reducing the weight of the duct and maintaining the strength of the flange.
Since corner pieces had to be mounted in four places to form one flange part, this corner piece had to be mounted manually, which was inefficient and resulted in large variations in finished products. The present invention aims to provide the above-mentioned problems was conceived to solve the flange corner piece mounting device capable of automatically carrying out the supply of the corner piece to the flange corner.

[0004]

In order to achieve the above object, a first means adopted by the present invention is formed in an L-shape at a corner portion of a flange portion formed at an end portion of a rectangular duct. In a flange / corner piece mounting device for mounting a corner piece, a supply port is provided, which is provided with a supply port for supplying the corner piece to a flange corner portion of the rectangular duct vertically mounted with the flange portion downward at a predetermined position. Supply rails for guiding the corner pieces to the supply port, push forks for sequentially pushing the corner pieces stacked at predetermined positions of the supply rail one by one to the supply port side, and the corner on which an arbitrary number is stacked A replenishing base for holding the pieces in arbitrary rows and replenishing the loaded corner pieces one by one at predetermined positions on the supply rail in order; The Tsu shoe fork causes reciprocating driven to the supply port direction, the flange corner characterized by comprising providing a corner piece supply means and drive means for oscillating the replenishment stage tuned to drive the push fork It is configured as a piece mounting device.

A second means adopted by the present invention is a flange / corner piece mounting apparatus for mounting an L-shaped corner piece on a corner portion of a flange portion formed at an end of a rectangular duct. , A supply port for supplying the corner piece to the supply port, the supply port supplying the corner piece to the flange corner portion of the rectangular duct vertically mounted with the flange portion downward at a predetermined position A rail, a push fork for sequentially pushing the corner pieces stacked at predetermined positions of the supply rail one by one to the supply port side, and an arbitrary number of the corner pieces stacked in an arbitrary row are held, and the corners are stacked. A replenishment stand for replenishing pieces in a row at predetermined positions on the supply rail in sequence, and a push fork for advancing in the direction of the supply port. Causes driven, and the corner piece supply means and drive means for oscillating the replenishment stage tuned to drive the push fork, of the rectangular duct
Rotating shaft parallel to the placing surface and lower than the placing surface
Is rotated about the
A pressing arm for pressing and fixing the corner piece supplied to the corner portion to a predetermined position of the flange corner portion, and a pressing arm parallel to the mounting surface of the rectangular duct and from the mounting surface.
The rising arm formed on the end side of the flange is rotated about the rotation shaft at the lower position and is used as the pressing arm.
A flange / corner comprising: a bending pressure arm that is bent on a more firmly fixed corner piece; and a corner piece mounting means that includes a driving means that drives the pressing arm and the bending pressure arm. It is configured as a piece mounting device.

[0006]

In the corner piece supply means according to the first means of the present invention, the corner pieces stacked in an arbitrary number at predetermined positions on the supply rail are pushed out one by one to the supply port side at the end of the supply rail by the push fork. Is configured so that The extruded corner piece is guided on the supply rail and is supplied from the supply port to the flange corner placed at a predetermined position on the duct mounting table. When the corner piece placed at a predetermined position on the supply rail is consumed, the corner piece prepared by being loaded on the replenishing stand is replenished. At the same time, the driving means for driving the push fork swingably changes the inclination angle of the replenishment table so that the loaded corner pieces can smoothly flow down for replenishment. Further, the corner piece attaching means according to the second means of the present invention rotates the pressing arm of the corner piece supplied by the corner piece supplying means to the flange corner of the duct placed at a predetermined position on the duct placing table. Then, the flange is pressed and fixed to the flange surface, and then the bending pressure arm is rotated to bend the rising portion formed on the flange end side onto the corner piece to caulk the flange and the corner piece. The pressing arm and the bending pressure arm are mounted on the mounting surface of the rectangular duct.
A rotary shaft that is parallel and lower than the mounting surface
Since it rotates about its center, each rotating arm must
Even if the duct has an inclined surface to a lesser extent than the plane, the turning locus does not interfere with the inclined surface of the duct. Therefore, according to the second means of the present invention, it is possible to realize a corner piece attachment device that automatically supplies and attaches a corner piece to a flange corner of a duct placed at a predetermined position on the duct placing table. To be done.

[0007]

Embodiments of the present invention will be described below with reference to the accompanying drawings for the understanding of the present invention. still,
The following example is an example embodying the present invention and does not limit the technical scope of the present invention. Figure 1
FIG. 2 is a perspective view showing a configuration of a main part of a corner piece attaching apparatus according to an embodiment of the present invention, FIG. 2 is a perspective view showing an example of a rectangular duct and a state in which the corner piece is attached to its flange portion,
3 is a plan view of the corner piece (a), a sectional view taken along the line DD (b), and a sectional view taken along the line EE (c), and FIG. 4 is a flange portion and the fitting of the flange portion and the corner piece. 5 is a cross-sectional view showing a combined state, FIG. 5 is a plan view showing a main part of the corner piece attaching device, FIG. 6 is a side view showing the rotating operation of the pressing arm and the bending pressure arm of the corner piece attaching device, and FIG.
Is a perspective view showing an example of a duct having an inclination angle, FIG. 8 is an operation sequence explanatory view for explaining the operation of the corner piece attaching device, FIG. 9 is a plan view showing the main part of the corner piece supplying device, and FIG. 10 is a corner piece. FIG. 11 is a schematic view for explaining the configuration and operation of the supply device, FIG. 11 is a side view for explaining a corner piece stacking state and a supply state, and FIG. 12 is a schematic view showing another embodiment of the supply base.

First, the formation structure of the flange provided in the rectangular duct and the shape of the corner piece attached to the flange will be described. As shown in an example in FIG. 2, the duct 5 is formed in a tubular shape with a rectangular cross section, and the end portions of the respective surfaces of the duct sheet metal 6 constituting the duct surface are bent at a right angle to form the flange portion 4 To form. At this time, as shown in the figure, the missing portions 20 are generated at each corner,
The corner piece 7 is attached at this position to complement the missing portion 20 and reinforce the flange portion 4. The corner piece 7 is formed in an L shape as shown in FIG.
The corner portion 7a corresponding to the missing portion 20 is drawn in a size corresponding to the plate thickness of the flange portion 4, and when the missing portion 20 is complemented by the corner piece 7, the flange surface is formed to be flush. It In addition, rising portions 7b, 7c, 7d are formed at required positions of the edges to increase the bending strength of the corner piece 7, and to fix the position and crimp to the flange portion 4, respectively, or the corner piece described later. It is also used as a locking piece for automatic supply. As shown in FIG.
As shown in the sectional view of (a), a rib 6a is formed in parallel with the flange portion 4, and an edge portion of the flange portion 4 is formed with a rising portion 4a whose end portion is folded back. When the corner piece 7 is press-fitted inside the flange portion 4 thus formed, the corner piece 7 is fitted inside the flange portion 4 as shown in FIG. 4B. Further, by bending the rising portion 4a of the flange portion 4 onto the corner piece 7, the corner piece 7 is moved to the rising portion 4a.
The flange portion 4 and the corner piece 7 are integrally formed by being caulked by a.

A description will be given below of the configuration of an embodiment of each device for performing the processing for mounting the corner piece 7 on the flange portion 4 configured as described above. In FIG. 1, a corner piece mounting apparatus 1 according to the present embodiment is mounted vertically on a duct mounting table 8 on which a duct 5 is mounted and at a predetermined position of the duct mounting table 8 with a flange portion facing downward. A corner piece supply device (corner piece supply means) 2 for supplying the corner pieces 7 to the flange corner portions of the duct 5 and a corner piece attachment device for fitting and fixing the corner pieces supplied to the flange corner portions at predetermined positions. (Corner piece attaching means) 3 is provided. Corner piece attachment device 3
Are arranged on both sides of the corner position of the duct mounting table 8 as shown in FIGS. The corner piece attaching device 3 includes a pair of pressing arms 9 and a bending pressure arm 10 arranged between the pressing arms 9 and 9.
A support base 11 that pivotally supports the pressing arm 9 and the bending pressure arm 10 , a first cylinder (driving means) 12 that rotates the pressing arm 9, and a second cylinder (driving means) that rotates the bending pressure arm 10. ) 13 and is comprised. The support base 11 also serves as a contact surface for positioning when the duct 5 is mounted at a predetermined position on the duct mounting base 8, but a separate positioning member is arranged. You may. FIGS. 6A and 6B show the positional relationship in the vertical direction of the pressing arm 9 and the bending pressure arm 10 with respect to the duct mounting table 8 and the change due to the rotating operation. The rotating shaft 9a of the pressing arm 9 and the rotating shaft 10a of the bending pressure arm 10 are shown in the figure.
Parallel to the mounting surface of the duct 5 of the duct mounting table 8.
Moreover, since the position is lower than the mounting surface, the arms 9 and 1 move from the state shown in FIG. 6 (a) to the state shown in FIG. 6 (b).
0 when rotated, and working end 9c of the pressing arm 9 viewed write down the corner piece 7 obliquely from above, tune pressure arm 1
The working end 10c of 0 is ducted from a substantially horizontal direction on the duct mounting surface.
It will be moved to the mounting table 8. That is, the first Shirin
The pressing arm 9 is rotated by the da 12 or the second arm
When the bending pressure arm 10 is rotated by the cylinder,
The dome 9 places the corner piece 7 at a predetermined position on the flange portion 4.
The corner with the bending pressure arm 10 fixed by pressing.
The rising portion formed on the flange portion 4 on the piece 7.
Bend 4a to prevent caulking, and attach the corner piece 7
The clothes are made.

By rotating the arms 9 and 10 along the arc, even if the duct surface 5a is an inclined duct (see FIG. 7), as shown by the phantom line in FIG. The corner piece 7 can be mounted without interference. The operation of the corner piece attaching device 3 having the above configuration will be described with reference to FIG. The accompanying drawings shown in each step of the figure are enlarged cross-sectional views showing an order state in which the corner piece 7 is attached to the flange portion 4. (1) As shown in FIG. 8A, the duct 8 is placed on the duct placing table 8 and the corner piece 7 is placed on the corner portion of the flange portion 4. (2) Next, as shown in FIG. 8B, the pressing arm 9 is rotated to press the corner piece 7 obliquely from above toward the flange portion 4 side. By this pressing, the corner piece 7 is fitted between the rib 6a and the folded-back portion 4b and pressed and fixed onto the flange portion 4. (3) Next, as shown in FIG.
The bending pressure arm 10 is rotated while the corner piece 7 is fixed by the pressing by. Working end 10 of bending pressure arm 10
The rounded surface formed in c presses the tip of the rising portion 4a from the horizontal direction to the flange portion 4 and bends it, and the rising portion 7c of the corner piece 7 is wound at the folded back portion 4b to prevent caulking.

Since the above operations are simultaneously performed by the pair of corner piece attaching devices 3 arranged on both sides of the predetermined position of the duct mounting table 8, in the case of a rectangular duct, 4
By sequentially performing the above-described mounting operation for one corner, the complementation and reinforcement of the missing portion of the flange portion 4 by the corner piece 7 are automatically performed without the need for manual hammering work or the like. When the corner piece attaching device 3 performs the corner piece attaching operation, the operation of supplying the corner pieces 7 to each corner of the flange portion 4 can be performed manually, but the corner piece attaching operation can be performed manually. It becomes possible to perform the mounting work of 7 fully automatically. The corner piece supply device 2 for automatically supplying the corner pieces 7 will be described below. As shown in FIG. 9, the corner piece supply device 2 is arranged at an intermediate position between the pair of corner piece attachment devices 3 arranged on both sides of the corner of the duct mounting table 8 and positioned at a predetermined position of the duct mounting table 8. The corner pieces 7 are supplied one by one to the corners of the flange portion 4 of the duct 5.

As shown in FIG. 10, the corner piece supply device 2 includes a supply rail 14 for guiding the sequentially delivered corner pieces 7 to a supply end (supply port) 14a, and an arbitrary number of supply rails 14 at predetermined positions. Push forks 15 that push out the loaded corner pieces 7 one by one from the lowest portion of the stack, and the feed rails 14 for the push forks 15.
A third cylinder (not shown) that is driven forwards and backwards, and a replenishing stand 16 that replenishes the corner pieces 7 loaded on the supply rail 14 by placing an arbitrary number of corner pieces 7 loaded in an arbitrary row are provided. It is configured. In FIG. 10A, the corner piece 7 is placed at a predetermined position on the supply rail 14.
Are loaded in an arbitrary number, and the corner piece 7 at the lowest loaded portion is the third piece as shown in FIG. 10 (b).
A push fork 15 driven forward and backward by a cylinder pushes it toward the supply end 14a side in a so-called dullama manner. The extruded corner piece 7 sequentially pushes forward the corner piece 7 in front, so that the corner piece 7 at the supply end 14a falls from the supply rail 14 and
The flange portion 4 of the duct 5 placed on the duct platform 8
Supplied on. The lowest corner piece 7 loaded
When pushing out with the push fork 15, only one of the lowest parts is pulled out, and the other corner pieces 7 are kept in the same positions. The locking pin 17 is installed so as to hang down from above. As shown in FIG. 1, the locking pin 17 is mounted on the upper side of the frame member 18 mounted on the supply rail 14 so that the hanging length can be adjusted.

As shown in FIG. 3 (b), the corner piece 7 has a rising portion 7d formed at the central position of the L-shaped corner portion. As shown in FIG. Since the tip of the stop pin 17 is adjusted to a height position where the height of the rising portion 7d of the corner piece 7 at the lowest loaded portion is removed from the supply rail 14, the corner of the lowest loaded portion is set by the push fork 15. When the piece 7 is pushed, the other corner pieces 7 are prevented from moving at the same time. When all the corner pieces 7 placed at the predetermined positions on the supply rail 14 are pushed out to the supply end 14a side, the corner pieces 7 stacked in arbitrary rows on the supply table 16 are supplied. In FIG. 10, assuming that A on the supply rail 14 of the stacking row of the corner pieces 7 is B and C on the replenishment stand 16, the stacking rows B and C are the replenishment stand 1
Since it is placed on the slanted surface of No. 6, it tries to flow down to the side of the stack A, but as shown in FIG. , Stacking line A
When there is no load, it flows down to the position of stack A and stack B
Is replenished. Therefore, if the number of corner pieces 7 loaded on the supply table 16 is managed to be always the required number,
The supply of the corner pieces 7 can be continuously performed.

In the construction of the above-mentioned replenishment stand 16, the replenishment stand 1
The corner pieces 7 on the 6 have a gentle slope in the state where they are loaded and the weight is increased, and because they are in contact with the front loading row due to the pressure to flow down, they may interfere with each other. Yes, there are cases where the flow is not smooth. Therefore, the supply table 16 is swung to prevent the flow down for supply smoothly or to prevent interference. In the case of the present embodiment, as shown in FIG. 10, the inclination angle is reciprocally changed in accordance with the forward / backward drive operation of the push fork 15 with the supply end 14a side of the supply base 16 as a fulcrum. That is, the roller 1 is attached to the upper surface of the push fork 15.
By installing 9 and supporting it from the lower surface of the loading table 16 by this roller 19, the inclination angle of the supply table 16 changes each time the push fork 15 is driven back and forth. Further, by forming the roller 19 or the lower surface of the replenishment stand 16 with an uneven surface, the movement of the push fork 15 causes vibration and a change in the inclination angle of the replenishment stand 16, which further reduces the interference between the loading rows. Can be prevented. FIG. 12 shows a structure of a supply table 16a according to another mode for preventing the corner pieces 7 from being locked between the loading rows.
As shown in the figure, the rotation fulcrum 16c is supported by an elongated hole of a support plate 21 fixed to the supply rail 14, and the roller 19 is fitted into the other end. A recess 16b is provided.

According to the above construction, since the push fork 15 is driven back and forth by the third cylinder, the inclination angle of the supply base 16a is changed and the forward and backward movements in the supply direction occur. The engagement with B can be prevented. By combining the corner piece supply device 2 and the corner piece attachment device 3 described above, the corner piece attachment device 1 that automatically supplies the corner piece 7 to the flange portion 4 of the duct 5 and attaches it is realized. The operation start of each of the corner piece supply device 2 and the corner piece attachment device 3 constituting the corner piece attachment device 1 is set in a predetermined order, and the duct 5 is placed on the duct mounting table 8 and the corner piece 7 is attached.
The corner piece 7 is automatically mounted when the apparatus is vertically positioned and mounted with the flange portion 4 for mounting the. That is, first, the corner piece 7 is supplied by the corner piece supply device 2, then the corner piece 7 is fitted to a predetermined position of the flange portion 4 by the pressing arm 9 of the corner piece attachment device 3, and the bending pressure arm 10 is used to prevent caulking. Is done. Therefore, if the operation of the corner piece attachment apparatus 1 is configured to be operated by a foot switch or the like, the operator drives each apparatus by positioning the duct 5 on the duct mounting table 8 and operating the switch. The first cylinder to the third cylinder operate in the set order,
Corner pieces are automatically attached. Therefore, the worker can mount the corner piece by a simple operation of operating a switch each time the corners of the corner piece of the duct 5 are sequentially moved.

[0016]

According as the present invention of the above description, with respect to the flange corner of the duct, which is placed at a predetermined position, one by one and supplies corner pieces supplied hand corner piece
Depending on the step , the corner piece can be automatically supplied at a predetermined position. Also, supply the above corner piece to the flange corner of the duct placed at the predetermined position on the duct placing table.
The corner piece supplied by the means can be automatically attached by the corner piece attaching means . In this way, when the corner piece attachment means is combined with the corner piece attachment means , the supply of the corner pieces to the attachment is automated. Therefore, the worker can mount the corner piece only by placing the duct at a predetermined position and operating the operation of the device set in the predetermined operation sequence.

[Brief description of drawings]

FIG. 1 is a perspective view showing a main configuration of a corner piece mounting apparatus according to an embodiment of the present invention.

FIG. 2 is a perspective view showing an example of a rectangular duct and a state in which a corner piece is attached to a flange portion thereof.

3A is a plan view of the corner piece, FIG. 3B is a sectional view taken along the line DD of FIG. 3B, and FIG. 3C is a sectional view taken along the line EE of the corner piece.

FIG. 4 is a sectional view (a) of a flange portion and a sectional view (b) showing a fitting state of a corner piece and a flange portion.

FIG. 5 is a plan view showing a main part of the corner piece attaching device.

FIG. 6 is a side view showing the rotating operation of the pressing arm and the bending pressure arm of the corner piece attaching device.

FIG. 7 is a perspective view showing an example of a duct having an inclination angle.

FIG. 8 is an operation sequence explanatory view for explaining the operation of the corner piece attaching device.

FIG. 9 is a plan view showing a main part of the corner piece supply device.

FIG. 10 is a schematic diagram illustrating the configuration and operation of a corner piece supply device.

FIG. 11 is a side view illustrating a loaded state and a replenished state of the corner pieces.

FIG. 12 is a side view showing another embodiment of the supply base.

FIG. 13 is a first example of forming a flange of a duct according to a conventional example.
The perspective view which shows an example.

FIG. 14 is a second example of flange formation of the duct according to the conventional example.
The perspective view which shows an example.

FIG. 15 is a sectional view of the flange portion of the above.

[Explanation of symbols]

 1 ... Corner piece mounting device 2 ... Corner piece supply device 3 ... Corner piece mounting device 4 ... Flange part 5 ... Duct 7 ... Corner piece 8 ... Duct mounting table 9 ... Pressing arm 10 ... Bending pressure arm 12 ... First cylinder (drive) 13) Second cylinder (driving means) 14 ... Supply rail 15 ... Push fork 16 ... Supply stand

Claims (2)

[Claims] 1. A flange / corner piece mounting device for mounting an L-shaped corner piece to a corner portion of a flange portion formed at an end of a rectangular duct, wherein the flange portion is placed at a predetermined position downward. A supply rail for supplying the corner piece to the flange corner portion of the vertically mounted rectangular duct, the supply rail for guiding the corner piece to be fed to the supply opening, and the stacking at a predetermined position of the supply rail. A push fork that sequentially pushes the formed corner pieces one by one toward the supply port side, and holds any number of the corner pieces loaded in any row.
A replenishment stand for replenishing the loaded corner pieces one by one at a predetermined position of the supply rail, and a push fork for advancing and retracting in the direction of the supply port, and the replenishment in synchronization with the drive of the push fork.
A flange / corner piece mounting device comprising a corner piece supply means including a drive means for swinging a table . 2. A flange / corner piece mounting apparatus for mounting an L-shaped corner piece on a corner portion of a flange portion formed at an end of a rectangular duct, wherein the flange portion is located at a predetermined position and is downward. A supply rail for supplying the corner piece to the flange corner portion of the vertically mounted rectangular duct, and a supply rail for guiding the supplied corner piece to the supply opening, and loading at a predetermined position of the supply rail A push fork for sequentially pushing out the corner pieces, one by one, to the supply port side,
Holds any number of the corner pieces loaded in any row,
A supply stage for supplying the the stacked corner pieces in order in a predetermined position in a row at a time the supply rails, the push fork causes reciprocating driven to the supply port direction, the replenishment stage tuned to drive the push fork Corner piece supply means provided with a driving means for rocking, and parallel to the mounting surface of the rectangular duct and lower than the mounting surface
Is rotated about the rotation axis in the position
The co Napi supplied to the flange corner portion of the bets
A pressing arm which is pressed against fixing the over scan in a predetermined position of the flange corners, parallel to the mounting surface of the rectangular duct
Moreover, the rising portion formed on the end side of the flange portion is rotated by rotating about the rotation shaft located at a position lower than the mounting surface.
It is characterized by comprising a bending pressure arm that bends onto a corner piece press-contacted and fixed by the pressing arm, and a corner piece attaching means including a driving means that drives the pressing arm and the bending pressure arm. Flange / corner piece mounting device.