JPH04261732A - Method for fitting bracket to long sized structural material - Google Patents

Abstract

PURPOSE:To obtain a method for fitting a bracket to a long sized structural material to which the expected bracket can be fitted easily and surely. CONSTITUTION:A bracket work device 53 using a cartridge 100 in which plural brackets 30 are stored is used, the brackets 30 are aligned in a constant direction on the cartridge 100, the brackets 30 are taken off in order with a bracket work device 53 for a C type steel 20 fed in order in an intermediate line 42, and the taken off bracket 30 is fitted with its inversion adequately according to the fitting state to the C type steel 20.

Description

[Detailed description of the invention]

0001

FIELD OF INDUSTRIAL APPLICATION The present invention relates to a method for attaching brackets to elongated structural members, and can be applied to production lines for box-shaped living units for prefabricated residential buildings.

0002

[Background Art] Conventionally, long structural members of prefabricated residential buildings, such as beams, have a plurality of brackets arranged at predetermined intervals in the longitudinal direction in order to fix ceilings and joists that receive ceiling materials and flooring materials. be done. When attaching such a bracket, automation through conveyance processing is attempted to improve work efficiency. Specifically, a bracket feeder, a welding machine, etc. are installed along the transport route, and the steel materials, etc. that will become the beam materials are sequentially transported in the longitudinal direction until the bracket attachment part of the beam material reaches the position of the welding machine. At that point, the brackets are supplied and welded, and the same work is performed at each installation site in turn.

0003

BACKGROUND OF THE INVENTION Incidentally, the thickness of the bracket attached to a beam material varies depending on the specifications of the beam material. In addition, the mounting form etc. may differ depending on whether the beam material is for the floor or ceiling, and the direction of the welding allowance may differ depending on the mounting location. Therefore, when attaching a bracket by transporting a beam material, it is necessary to replace the bracket to be used depending on the beam material. Even when beams having the same specifications are processed continuously, it is necessary to change the orientation of the bracket attached to each location in accordance with the attachment location on the beam. However, there is a problem in that it is difficult to handle the various types of parts described above with the general parts supply system used in existing bracket processing equipment.

[0004] An object of the present invention is to provide a method for attaching a bracket to an elongated structural material, which allows a desired bracket to be easily and reliably attached to the elongated structural material.

[0005]

[Means for Solving the Problems] The present invention provides a long structural material in which long structural materials are sequentially sent to a predetermined conveyance path, and a plurality of brackets are sequentially attached to each transported long structural material using a bracket processing device. This bracket mounting method uses a bracket processing device that supplies brackets using a cartridge containing a plurality of brackets, aligns each bracket stored in the cartridge in a fixed direction, and sequentially installs the brackets from the cartridge. The present invention is characterized in that the bracket is taken out, and the taken-out bracket is appropriately reversed depending on the form of attachment to the elongated structural member and then attached to the elongated structural member.

[0006] Here, the long structural material corresponds to a beam material made of C-shaped steel or the like. In addition, when reversing the bracket, the bracket taken out from the cartridge should be rotated half a turn (180 degrees
It is sufficient to provide a mechanism for performing The presence or absence of reversal may be specified using a code displayed on the long structural material to be processed, a marker displayed on each bracket, or a predetermined program.

[0007]

[Function] In the present invention, various brackets can be easily replaced by supplying the brackets in a cartridge type, and since the brackets stored in the cartridge are oriented in the same direction, it is easy to take out the brackets. And you will be able to do it reliably. In addition, by appropriately reversing the removed brackets, each bracket that was originally oriented in the same direction is fed in the specified orientation, so that the brackets can be correctly installed in the specified orientation at each installation site of the long structural material. Thus, the above objective is achieved.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows an overview of the production process of a box-shaped living room unit for a prefabricated residential building. This production process is
Each production line 1 corresponds to the configuration of the living room unit to be manufactured.
~9.

FIGS. 2 and 3 show the configuration of the living room unit 10 produced in the production process of this embodiment. The living room unit 10 has end panels 13 and 14 arranged on the short sides of the upper and lower ceiling panels 11 and floor panels 12, and the corners of each are fitted and welded together to form a box-shaped structure. It is constructed by attaching an exterior wall panel 19 made of lightweight aerated concrete to the outdoor side, and installing predetermined interior decoration and equipment inside.

The ceiling panel 11 includes a pair of long side beams 2 for the ceiling.
1 and 22 are made parallel and connected by a field edge 15, and a ceiling panel 16 is attached to the lower surface thereof. floor panel 12
The pair of long side beams 23 and 24 for the floor are parallel to each other and the joists 1
7, and a floor surface material 18 is attached to the upper surface thereof. The end panels 13 and 14 are connected to a pair of pillars 25 and 2.
6 are parallel and their upper and lower ends are connected to a pair of short side beams 27, 2
8, and each panel 11 on the same side of each corner.
It is formed by welding and fixing a joint 29 for joining the long side beams 21 to 24 of 12.

FIG. 4 shows long side beams 21 to 24 used in the ceiling panel 11 and floor panel 12 described above. The long side beams 21 to 24 are each formed by drilling various holes in the same C-shaped steel 20, and welding and fixing brackets 30 for connecting the field edges 31 and joists 33.

The C-shaped steel 20 has flanges 20B on both sides of the web 20A, and is formed to have a length of 2.5, 4, 5, or 6 modules depending on the living room unit 10 to be produced. Note that when the long side beams 21 to 24 are incorporated into the ceiling panel 11 and the floor panel 12, the web 20A side is placed on the outside, and the flange 20
One of B is arranged on the upper side, and the other one is arranged on the lower side.

Positioning reference holes 31 and 32 are formed on the central axis of the web 20A, one end of which is a round hole, and the other end of which is a long hole. Further, bolt holes 33 for attaching an eaves unit, etc. are appropriately formed in the web 20A. The flange 20B has two rows of welding slits 34 formed at both ends of the upper side, and general-purpose mounting holes 35 for attaching the outer wall panel 19 or window sash etc. to the lower side or both sides. are formed at predetermined intervals. However, the arrangement, dimensions, etc. of the holes 31-33, 35 and slit 34 formed in each differ depending on the specifications of the long side beams 21-24 to be manufactured.

The bracket 30 is formed by punching out a steel plate or the like into a substantially T-shape, and has a protrusion 30A in the middle portion for connecting a field edge 31 and a joist 33. This protrusion 30A is formed biased to one side, and both ends 30A are formed biased to one side.
B are each bent to the same side so that they can be welded and fixed along the inner surface of the flange 20B of the C-shaped steel 20. In addition, each bracket 30 is arranged so that the protrusion 30A is on the lower side of the long side beams 21 and 22 for the ceiling, and the protrusion 30A is on the upper side of the long side beams 21 and 22 for the floor. Usually, it is installed so as to face the center of the C-shaped steel 20 in the longitudinal direction. However, the number, position, orientation, thickness, shape, and other types of brackets 30 installed on each C-shaped steel 20 differ depending on the specifications of the long side beams 21 to 24 to be manufactured.

In order to produce such a living room unit 10, the production process of this embodiment is structured as shown in FIG. That is, a long side beam production line 1 is installed to manufacture long side beams 21 to 24, which are the basics of the structure, followed by a ceiling panel production line 2 for assembling the ceiling panel 11 from the long side beams 21 and 22. and long side beams 23, 24
A floor panel production line 3 for assembling floor panels 12 is installed.

Similarly, pillars 25 and 26 are the basis of the structure.
Column production line 4 for manufacturing, and short side beams 27, 28
A short side beam production line 5 is installed for manufacturing the short side beams, and a gable panel production line 6 is installed for assembling the end panels 13, 14 from the columns 25, 26 and the short side beams 27, 28.

Following each of these panel production lines 2, 3, and 6, an assembly line 7 for assembling the panels 11 to 14 into a box shape is installed, followed by an exterior wall panel installation line 8 for attaching the exterior wall panel 19, A fixture installation line 9 is also installed for finishing interior decoration and installing indoor equipment and outdoor equipment such as window sashes and eaves units. The above-mentioned living room units 10 are produced by each of these production lines 1 to 9.

FIG. 5 shows more specific configurations of the long side beam production line 1, ceiling panel production line 2, and floor panel production line 3 in the production process described above. The long side beam production line 1 includes a front line 41 that conveys the C-shaped steel 20;
A middle line 42, a rear line 43, intermediate stockers 44, 45 for delivering the C-shaped steel 20 between them, and a supply stocker 46 for supplying the C-shaped steel 20 to the front line 41 are provided. Then, the C-shaped steel 20 from the supply stocker 46 is appropriately stocked in intermediate stockers 44 and 45 and sent to each line 41 to 43 while adjusting the timing, and the C-shaped steel 20 is subjected to a predetermined conveyance process in each line 41 to 43. Long side beam 21
~24 are now being manufactured.

Among these, an end hole drilling device 51 is installed in the front line 41, and the above-mentioned hole 31 is installed at the end of the C-shaped steel 20.
~33 and slit 34 are processed. The middle line 42 is equipped with an intermediate hole punching device 52 and two sets of bracket processing devices 53.
is installed, and the holes 35 and brackets 30 described above are sequentially and continuously machined in a predetermined arrangement in the middle part of the C-shaped steel 20. In the rear line 43, workers from the side of the path perform finishing work such as shaping the processed portion of the C-shaped steel 20 and applying anti-rust paint.

Note that in the front line 41 and the rear line 43, a roller conveyor or the like is used to convey the C-shaped steel 20, but in the intermediate line 42, precise individual movement is possible in order to process the holes 35 and brackets 30 intermittently. A trolley-type transport device is used. In addition, long side beam production line 1
In this process, four C-shaped steels 20 having the same length, which are to become the long side beams 21 to 24 of one unit, are transported and processed in a set of four. In order to accommodate such a set feeding of four C-shaped steels 20, the intermediate stockers 44 and 45 are large enough to stock at least four C-shaped steels 20.

Long side beam 2 manufactured on long side beam production line 1
1 to 24 are sent to the ceiling and floor panel production lines 2 and 3 via the sorting device 60. Sorting device 60
The long side beams 22, 21 for the ceiling and the long side beams 24, 2 for the floor are sent in order by the distribution stocker 61.
3 are distributed to conveyors 64 and 63, and each is transferred to a predetermined position on each panel production line 2 and 3 on the ceiling and floor by a distribution hoist 62. In each of the ceiling and floor panel production lines 2 and 3, while the long side beams 21, 22 and 23, 24, which are arranged opposite to each other on pallets 71, 81, are sent by the conveyor devices 72, 82, workers move each bracket. 30, fix the roof edge 15 and the joists 17, attach the ceiling panel 16 and the floor panel 18 from above, turn it over using the intermediate reversing machines 73 and 83, and then cover the back side with a heat insulating material. Thus, the ceiling panel 11 and floor panel 12 are completed.

In order to manufacture the various long side beams 21 to 24 used in each of the panel production lines 2 and 3 on the same long side beam production line 1, each C-shaped steel 20 is provided with respective attribute information in advance. Assign the code 20C (see Figure 4).
. The code 20C is written on each C-shaped steel 20 by direct printing or by pasting an adhesive sheet, and each is represented by a machine-readable bar code or the like together with characters that can be visually recognized by an operator. The attribute information represented by the code 20C includes the length, designation of which of the long side beams 21 to 24 it corresponds to, designation of the conveyance state on each line 41 to 43 during processing, and the type and installation of the bracket 30 to be used. Codes such as the position and details of the hole drilling process are set.

A reader 54 is installed after the supply stocker 46 of the front line 41 in order to read the attribute information of each C-shaped steel 20 based on the code 20C. Then, the C-shaped steel 20 read by the reader 54
The attribute information is the end hole drilling device 5 of the long side beam production line 1.
1. Intermediate hole punching device 52, two sets of bracket processing devices 5
3, and the processing contents in each are sent to each long side beam 21 to 2.
The settings have been changed to match 4. For this purpose, the bracket processing device 53 is configured to supply brackets using a cartridge method.

6 and 7 show the bracket processing device 53 in detail. FIG. 8 shows a cartridge 100 used in the bracket processing device 53. The cartridge 100 is a rail-shaped open container having a substantially U-shaped cross section, and each accommodates a bracket 30 corresponding to one of the long side beams 21 to 24. At this time, both ends 30B of each of the stored brackets 30 are aligned in the same direction. Therefore, when each bracket 30 is housed with both end portions 30B oriented in opposite directions with respect to the center of the long side beam, the respective protrusions 30A are aligned in opposite directions as shown in FIG.

The bracket processing device 53 includes a pair of welding machines 110 installed on both sides of the intermediate line 42 of the long side beam production line 1, a cartridge stocker 120 installed in the vicinity thereof, a bracket take-out machine 130, and a bracket transfer machine. 140.

The welding machine 110 has welding guns 112 at the tips of welding arms 111 extending from each welding gun 112, and the welding guns 112 are used to attach the flanges 20B on each side of the C-shaped steel 20 being transported and the brackets transferred to the relevant positions. Both ends 30B of 30 are sandwiched and welded from the front and back. The welding arm 111 can be rotated diagonally upward by an air cylinder 113 so as not to interfere with the conveyance of the C-shaped steel 20.

The cartridge stocker 120 is a lifting table 121 on which one cartridge 100 can be placed.
The lifting table 121 has an air cylinder 122.
It is possible to move up and down along the guide rail 123. A roller-type carry-in conveyor 124 is installed horizontally on the side of the upper limit of movement of the lifting table 121, and a downwardly inclined roller-type carry-out conveyor 125 is installed on the side of the lower limit of movement.
is installed.

A carry-in guide 126 is installed at the end of the carry-in conveyor 124, and a carry-in guide 126 is installed along the bottom surface of the carry-in conveyor 124.
7 is installed, and the cartridges 100 inserted from the carry-in guide 126 are sequentially placed in parallel on the carry-in conveyor 124 and sent by the conveyor belt 127, and the first ones are transferred one by one onto the lifting table 121 at the upper limit of movement. be done. On the opposite side of the carry-out conveyor 125 , an air cylinder 128 is installed to send out the cartridges 100 on the lifting table 121 at the lower limit of movement to the carry-out conveyor 125 , and the carried-out cartridges 100 are automatically moved by gravity to the lower end side of the carry-out conveyor 125 Move to
Stocked in parallel.

The bracket take-out machine 130 is equipped with a take-out clamp 131 placed opposite the upper limit position of the movement of the lifting table 121 of the cartridge stocker 120 . Further, a pushing member 132 is provided above the upper limit position of movement of the lifting table 121.

The take-out clamp 131 is opened and closed by a solenoid or the like, and is also moved forward and backward by an air cylinder 132 to remove the cartridge 10 on the lifting table 121.
It is possible to grasp and take out the brackets 30 one by one from 0. The extrusion member 132 is a feed screw 134
It is possible to move along the guide rail 135 by
The brackets 30 in the cartridge 100 are sequentially fed out in response to removal by the clamp 132. The take-out clamp 132 can be rotated horizontally by a half turn (180 degrees) by a built-in motor or the like, and can also reverse the direction of the taken-out bracket 30.

[0031] The bracket transfer machine 140 has a support column 141.
A transfer arm 142 supported by the transfer arm 142 is provided with a transfer clamp 143 operated by a solenoid or the like at the tip. The transfer arm 142 can be moved horizontally and vertically by air cylinders 144 and 145, and the support column 141 can also be rotated by a drive source (not shown). As a result, the transfer clamp 143 receives the bracket 30 taken out by the bracket takeout machine 130, and the welding machine 110
It can be transferred to the inside of the C-shaped steel 20 at the welding position.

Next, the bracket mounting work in this embodiment will be explained. First, during conveyance processing, the bracket 30 used for the C-shaped steel 20 (code 20C) is attached in advance.
Attribute information for the long side beams 21 to 24 including the type and arrangement of the long side beams 21 to 24 is set, and a cartridge 100 in which a combination of brackets 30 corresponding to this setting is set for each long side beam 21 to 24 is used in various types. Keep it in stock.

Next, conveyance processing is started, and the code 20C is read from the C-shaped steels 20 that are sequentially supplied, and the corresponding cartridges 100 are selected and set in the bracket processing device 53 one after another. As a result, as the machining of the C-shaped steel 20 progresses, the previously set cartridge 100
are sent sequentially by the cartridge stocker 120, and when the corresponding C-shaped steel 20 is sent, the elevating table 121
sent to.

Here, when attaching the bracket 30 to one C-shaped steel 20, the feed of the intermediate line 42 is adjusted according to the arrangement of the bracket 30 indicated by the symbol 20C, and the bracket attachment parts of the C-shaped steel 20 are sequentially moved. Send it to the specified welding position. Then, at each feeding position, the bracket take-out machine 1
Cartridge 100 on lifting table 121 at 30
The brackets 30 are taken out one by one, transferred to the bracket attachment site of the C-shaped steel 20 by the bracket transfer machine 140, and welded by the welder 110, and the procedure is repeated.

[0035] At this time, in the bracket take-out machine 130, the bracket 30 is reversed based on the bracket 30 arrangement indicated by reference numeral 20C. For example, Figure 9
If both ends 30B of each bracket 30 housed in the cartridge 100 are facing the rear end of the cartridge 100, as shown in FIG. If the bracket 30 is transferred as is by the machine 140, both ends 30B of the bracket 30 will be oriented toward the center of the C-shaped steel 20. On the other hand, for the attachment part of the first half of C-shaped steel 20,
Since it will no longer face the center of the C-shaped steel 20, as shown in FIG. 10, when it is taken out, the clamp 132 of the bracket removal machine 130 is reversed, and the bracket 30 is transferred to the C-shaped steel 20 in the opposite direction. As a result, both ends 30B of the bracket 30 are oriented toward the center of the C-shaped steel 20, and the bracket 30 is attached to the C-shaped steel 20 in the desired arrangement.

According to this embodiment, all the long side beams 21 to 24 used in the panel production lines 2 and 3 can be sequentially manufactured on the long side beam production line 1, and the C-shaped steel 20
Processing from to each panel 11 and 12 is done on each line 1 and 2.
, 3 continuously, it is possible to further improve production efficiency through automation.

In particular, in the long side beam production line 1, C
When supplying the shaped steel 20, a code 20C indicating attribute information is assigned, and holes are drilled and brackets 3 are drilled based on the content.
Since the processing details of 0 etc. have been changed, the long side beam 21
-24 production can be made more efficient and reliable.

[0038] Also, the bracket 3 for one piece of C-shaped steel 20 is
0 is housed in one cartridge 100, it is possible to easily and reliably cope with changes in the type of bracket 30 for each C-shaped steel 20, etc. Then, attach the bracket 30
To change the cartridge 100, select the corresponding cartridge 100 from the code 20C read earlier, and use the bracket processing device 53.
Since you only need to set it to , you can work more efficiently.

Furthermore, since the brackets 30 to be housed in the cartridges 100 are oriented in the same direction, the cartridges 100
0, the bracket 30 can be smoothly fed, and the clamping etc. at the time of taking out can be ensured. In addition, in the bracket processing device 53, the bracket 30 is
Since the brackets 30 are appropriately reversed based on the contents of 0C, even if the brackets 30 are set in the same direction, they can be installed in the desired arrangement.

The bracket processing device 53 uses the above-mentioned functions to process the cartridge 100.
From the sequential feeding of the brackets 30 to the attachment of the brackets 30 to the stocking of empty cartridges 100 can all be automated, and the productivity of the long side beam production line 1 can be greatly increased.

It should be noted that the present invention is not limited to the above embodiments, and modifications and the like within the scope of achieving the present invention are included in the present invention. For example, the long side beams 21 to 24 may have other forms, and the shape, arrangement, etc. of the bracket 30 may be appropriately selected in implementation. Also,
The elongated material used as the raw material is not limited to the C-shaped steel 20, but may be of other cross-sectional shapes such as H-shaped or made of other materials. Furthermore, as long structural members, ceiling panels 11 and floor panels 12 are used.
The present invention is not limited to the long side beams 21 to 24 for use, but may be short side beams or columns for panels of the wall surface portion.

On the other hand, the shape, material and dimensions of the cartridge 100, the number of brackets 30 accommodated, etc. may be set as appropriate for implementation. Further, selecting the cartridge 100, setting it in the bracket processing device 53, and recovering it is not limited to manual work, and an appropriate parts automatic supply device may be used. Furthermore, the bracket processing device 53 is not limited to the above-mentioned configuration, but may be any device that can take out the individual brackets 30 from the cartridge 100 corresponding to the C-shaped steel 20 to be sequentially processed and attach them in a predetermined arrangement, and can be set as appropriate during implementation. do it.

In the above embodiment, the bracket removal machine 130 of the bracket processing device 53 performs the reversal, but the bracket transfer machine 140 may also perform the reversal, and the specific mechanism thereof may be selected as appropriate. Also,
To specify whether or not to invert, use the code 20C displayed on the C-shaped steel 20.
However, the present invention is not limited to this, and a marker or the like may be displayed on each bracket 30 housed in the cartridge 100. Alternatively, the bracket processing device 53 may be provided with a reversal designation program or the like, and the reversal may be switched by determining the bracket attachment site of the C-shaped steel 20 from the feeding position of the intermediate line 42.

[0044]

[Effects of the Invention] As described above, according to the present invention,
By storing each bracket in the cartridge in one direction, it is easy to replace or take out the bracket, and by flipping each bracket appropriately when installing it, you can place the bracket in the desired state with respect to the long structural material. This will allow you to install it securely.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the entire production process of an embodiment of the present invention.

FIG. 2 is a perspective view showing a living room unit produced in the same example.

FIG. 3 is an exploded perspective view showing the configuration of the room unit.

FIG. 4 is a perspective view showing a long side beam used in the room unit.

FIG. 5 is a plan view showing each production line related to the long side beams of the embodiment.

FIG. 6 is a plan view showing a bracket processing device used in the embodiment.

FIG. 7 is a front view showing the bracket processing device used in the embodiment.

FIG. 8 is a perspective view showing a cartridge used in the embodiment.

FIG. 9 is a schematic plan view showing bracket attachment without reversal in the embodiment.

FIG. 10 is a schematic plan view showing bracket attachment with reversal in the embodiment.

[Explanation of symbols]

1 Long side beam production line 2 Ceiling panel production line 3 Floor panel production line 10 Room unit 11 Ceiling panel 12 Floor panel 20 C-shaped steel 20C which is a long material Codes 21 to 24 Long side beam 30 which is a long structural material Bracket 53 Bracket processing device 100 Cartridge 110 Welding machine 120 Cartridge stocker 130 Bracket take-out machine 140 Bracket transfer machine

Claims (1)

[Claims] 1. A method for attaching brackets to elongated structural materials, in which the elongated structural materials are sequentially sent to a predetermined transport path, and a plurality of brackets are sequentially attached to each of the elongated structural materials by a bracket processing device, the method comprising: Using a bracket processing device that supplies brackets using a cartridge containing a plurality of brackets, the brackets stored in the cartridge are aligned in a fixed direction, the brackets are sequentially taken out from the cartridge, and the taken out brackets are cut into A method for attaching a bracket to an elongated structural material, the method comprising: suitably inverting the bracket according to the form of attachment to the elongated structural material; and attaching the bracket to the elongated structural material.