JP2574185Y2 - Bending equipment - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus used for bending a thin metal plate such as a decorative board for construction, and more particularly to an apparatus for hemming an edge collar.

[0002]

2. Description of the Related Art As shown in FIG. 8, a conventional bending forming apparatus of this type is configured such that a fixed bed 50 having a flat plate shape and one end of the fixed bed 50 can be rotated via a rotating hinge (hinge) 60. And a swinging bed 30 of the same flat plate shape attached to the main body. Then, the scale 2 is placed on the swing bed 30 side.
The ram 10 having the blades 110 only on one side and one side is mounted, and the arm 70 is attached to one end of the swing bed 30. A flat work piece (work) 99 is placed on the fixed bed 50 having such a configuration, and one end thereof is connected to the swing bed 30 and the blade 110 provided on the swing bed 30 side. By inserting the arm 70 provided on the swing bed 30 side toward the near side in such a state by inserting it into the gap (E) formed, the tip of the work 99 is bent and formed. .

[0003]

As shown in FIG. 10, a product bent and formed by the above-mentioned conventional apparatus is sharply formed at both ends, but sagging (D) occurs at the center. However, there is a problem that the shape is not accurately formed. In addition, since the rotating hinge 60 connecting the beds 30 and 50 is configured to protrude from the surfaces of the beds, the maximum size (width) of the work that can be bent is set at both ends. The length is limited to the length between the two provided rotation hinges 60, and there is a problem that a work having a dimension longer than this length cannot be bent. In addition, the swing bed 3
Blade (blade portion) 110 of the ram 10 attached to the 0 side
Is a type provided only on one side, so that the blade 11
If the blade surface of 0 is damaged, stop the bending work,
There is a problem that it is necessary to perform a regenerating operation such as shaving of the blade surface. Furthermore, when adjusting the dimension of the bent portion of the bent portion of the work 99, the scale 20 is read to perform the adjustment work, but there is a problem that the work of reading the scale is difficult. . SUMMARY OF THE INVENTION It is an object (problem) of the present invention to provide a bending apparatus which solves these various problems.

[0004]

Means for Solving the Problems In order to solve the above problems, the present invention takes the following measures. That is, the upper part of the base has a female part composed of a substantially V-shaped groove, and has a fixed bed that starts from the upper end surface of the V-shaped groove and forms a horizontal plane. Form the same surface as the bed and
A swing bed provided so as to oppose each other with the V-shaped groove therebetween, a ram having an arm, a scale, and blades on both sides provided on the swing bed; and a roller hinge between the fixed bed and the swing bed. And formed so that a straight line connecting the surfaces of both beds is in contact with the outer peripheral surface of the roller of the roller hinge,
In addition, when the swing bed makes a rotational movement, a configuration is employed in which the tip of the blade operates so as to bite into the female mold portion formed of the V-shaped groove.

[0005]

According to the present invention, the work is bent according to the following operation. That is, in FIG. 2, a work 99 made of a thin metal plate is placed on both the beds 55 and 3 which are kept horizontally.
And one end thereof is inserted into a gap (E) provided on the swing bed 3 side. Before this, it is necessary to set the inserted amount (bending allowance) to a predetermined value. That is, the wing bolt 8 is loosened, the scale 2 is moved, the scale 21 provided on the scale 2 is read, and the scale 2 is adjusted so as to have a predetermined bending margin. After inserting one end of the work 99 into the gap (E) formed between the blade 11 adjusted to a predetermined bending margin and the swing bed 3 in this manner,
The swing bed 3 is rotated 90 ° using the arm 7,
It is operated in the state shown by the two-dot chain line in FIG.

By this series of operations, the bent margin 98 of the work 99 sandwiched between the swing bed 3 and the blade 11 slides on the roller outer peripheral surface 61 of the roller hinge 6 to be substantially V-shaped. The blade 11 is pushed into the female mold portion 51 formed by the groove of FIG. As a result, the bending allowance 9 of the work 99 is reduced.
The portion 8 is bent and formed into a V-shape as shown by the two-dot chain line in FIG. In particular, in the present invention, the blade edge of the blade 11 contributing to the above-described bending, the female mold portion 51 formed of a V-shaped groove, and the roller outer peripheral surface 61 forming the roller hinge 6 extend over the entire width of the work 99. Since it is provided, the bent portion of the work 99 is
As shown in FIG. 5, the workpiece 99 is formed sharply over the entire width. That is, the sag (D) does not occur unlike the conventional one shown in FIG. The member (work) thus formed by bending is inserted into the female mold portion 51 having a substantially V-shaped groove as shown in FIG.
The bending margin 98 of the work 99 is completely bent and hemmed as shown in FIG.

As described above, the apparatus according to the present invention can be used for efficiently hemming an end face of a metal decorative board or the like used as a building material. Then, the member hemmed in this way has improved strength and rigidity, and furthermore, it is possible to ensure the safety of the worker. Further, in the present invention, since the blades 11 and 11 ′ exhibiting the bending forming function are provided on both sides of the ram 1, the blades 11 and 11 ′ perform the bending forming process continuously. When the blade surface of the blade 11 is damaged, the blade 1
Simply take the damaged one of the blades 11 and 11 'to the rear side and replace it so that the blade 11' having a new blade surface is brought to the front side (replace the ram 1). Subsequently, the bending and forming operation can be continued.

Therefore, unlike the conventional apparatus, it is not necessary to interrupt the bending and forming operation and perform the operation of cutting the blade blade surface. Further, as shown in FIG. 3, of the blade blade surfaces provided on both sides, the portion provided on the scale reading side of the scale 2 has a thin blade edge, so that the portion of the scale 21 can be read. Work can be done easily. That is, as shown in FIG. 4, the scale 21 and the cutting edge of the blade 11 are close to each other, so that the operator's eyes can accurately catch the portion of the scale 21. Therefore, a more accurate indexing operation of the bending margin 98 can be performed as compared with the conventional one shown in FIG.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS This embodiment will be described with reference to FIGS. The configuration of the present embodiment is, as shown in FIGS.
A female part 51 having a substantially V-shaped groove provided above the base 5, a flat fixed bed 55 starting from an upper end of the V-shaped groove, and a roller hinge provided at one end of the fixed bed 55. 6 so as to be rotatable and the above V
It is basically composed of a plate-shaped swing bed 3 attached so as to sandwich a female part 51 formed of a U-shaped groove.

In such a basic structure, the roller hinge 6 provided between the fixed bed 55 and the swing bed 3 has an outer peripheral surface 61 of the roller.
However, as shown in FIG. 2, it is provided so as to be in contact with a straight line connecting the surface of the fixed bed 55 and the surface of the swing bed 3. Further, as shown in FIG. 1, the rollers forming the roller hinge 6 are provided over the entire width of the beds 3 and 55 of the present apparatus. As a result, it is possible to process a member (work) having a large width. In some cases, a work having a dimension equal to or larger than the width of the bed in the present apparatus is also required.
By shifting the work 99 to the left and right, it is possible to perform a bending forming operation. The roller hinge 6 is provided with hinge plates 63 and 65. One hinge plate 63 is attached to the balance weight portion 31 connected to the swing bed 3 with an attachment bolt 39 or the like, and the other hinge plate 65 is provided. Is mounted on the fixed bed 55 via the base 5 with mounting bolts 59 or the like.

Next, the swing bed 3 having the above-described structure is used.
Is provided with a scale 2 for calculating a bending allowance 98 of the work 99.
A ram 1 having blades 11 and 11 ′ on both sides is attached to an upper surface of the rim by a wing bolt 8 or the like. As shown in FIG. 1, the scale 2 is provided with a scale 21 on a part thereof, and as shown in FIG. 22 is provided. Further, as shown in FIG. 3, the ram 1 has blades 11 and 1 having blade surfaces on both sides thereof.
1 ′ is provided.
The rear blade 11 ′ is formed so as to serve as a gauge when reading the scale 21 of the scale 2. The blade 11,
The angle of the blade surface of 11 ′ is suitably 15 ° to 17 °.

Further, in the above structure, a balance weight portion 31 for improving the return of the swing bed 3 is provided below the swing bed 3 as shown in FIGS. It has a configuration that is In the present embodiment, the swing bed 3 and the balance weight portion 31 are formed of an integral angle material, and one side of the angle material is used as the swing bed 3, and The other side is used as the balance weight section 31. On the other hand, a stopper 4 is provided below the base 5 on which the female mold portion 51 is provided, and when the swing bed 3 is installed to be kept horizontal, the swing The balance weight portion 31 provided integrally with the bed 3 is formed so as to contact (contact) the stopper 4. Therefore, when the swing bed 3 is to be returned to the initial state, the returning operation is easy and the balance weight portion 31 is stopped by hitting the stopper 4, so that the horizontal state of the swing bed 3 is automatically set. Is maintained.

An auxiliary arm as shown in a two-dot chain line in FIG. 2 is attached to the end of the arm 7 which is attached to the swing bed 3 and serves to rotate the swing bed 3 (swing). 71 can be attached. As a result, the arm ratio can be increased, and a workpiece having a large plate thickness can be bent and formed. By rotating the arm 7 having such a configuration, the swing bed 3 is moved to the center point O of the roller hinge 6.
₆ (see FIG. 2), the blade 11 mounted on the upper surface of the swing bed 3
As shown by a two-dot chain line in FIG. 2, the actuator operates so as to bite into the female mold portion 51 formed of a V-shaped groove.

The operation of this embodiment having the above-described configuration will be described. First, in FIG. 2, a work 9 made of a thin metal plate is placed on both the beds 3 and 55 kept in a horizontal state.
9 is mounted. Then, one end of the swing bed 3
Into the gap (E) provided on the side. Before this, it is necessary to set the inserted amount (bending allowance) 98 to a predetermined value. That is, the wing bolt 8 is loosened, the scale 2 is moved, the scale 21 provided on the scale 2 is read, and the scale 2 is adjusted so as to have a predetermined bending margin 98. After inserting one end of the work 99 into the gap (E) formed between the blade 11 and the swing bed 3 adjusted to the predetermined bending margin in this way, the swing is performed using the arm 7. The bed 3 is rotated by 90 ° and is operated in the state shown by the two-dot chain line in FIG.

By this series of operations, the bent portion 98 of the work 99 sandwiched between the swing bed 3 and the blade 11 slides on the roller outer peripheral surface 61 of the roller hinge 6 to form a substantially V-shaped groove. The blade 11 of the blade 11 is pressed into the female mold portion 51 made of As a result, the bending allowance 9 of the work 99 is reduced.
The portion 8 is bent and formed into a V-shape as shown by the two-dot chain line in FIG. In particular, in the present invention, the blade edge of the blade 11 contributing to the above-described bending, the female mold portion 51 formed of a V-shaped groove, and the roller outer peripheral surface 61 forming the roller hinge 6 extend over the entire width of the work 99. Since the configuration is provided, the roller outer peripheral surface 61,
The bent portion of the work 99 is subjected to the drawing process by the action of the female mold portion 51 composed of the V-shaped groove and the blade surface of the blade 11, so that the bent portion of the work 99 is shown in FIG. Thus, the workpiece 99 is formed sharply over the entire width. That is, the sag (D) does not occur unlike the conventional one shown in FIG. The member (work) formed by drawing in this manner is further inserted into the female mold portion 51 having a V-shaped groove as shown in FIG.
Further pressing by the blade 11 causes the bent portion of the work 99 to be completely bent and hemmed as shown in FIG.

As described above, the apparatus according to the present embodiment can be used to form an end face of a metal decorative board or the like used as a building material, for example.
It can be used for efficient hemming or the like. And the member hemmed in this way is
The strength and rigidity are improved, and the terminal is not sharp edge but rounded, so that the worker's hand and the like are not damaged, and the safety of the worker can be secured. Further, in this embodiment, since the blades 11 and 11 'exhibiting the bending-forming function are provided on both sides of the ram 1, the blades 11 and 11' are formed while the bending-forming is continuously performed. If the blade surface of the blade 11 is damaged, the blade 11, 11 '
Take the damaged blade 11 side of
The bending and forming operation can be continued by merely performing the replacement operation so as to bring the blade 11 side having the new blade surface forward. Therefore, unlike the conventional one, there is no need to interrupt the bending and forming operation to perform the cutting operation of the blade blade surface. Further, as shown in FIG. 3, of the blades provided on both sides, the portion provided on the scale reading side of the scale 2 has a thin tip at its tip, so that the reading operation of the portion of the scale 21 is performed. Can be easily performed. That is, as shown in FIG. 4, the scale 21 and the cutting edge of the blade 11 are close to each other, so that the operator's eyes can accurately catch the portion of the scale 21. Therefore, a more accurate indexing operation of the bending margin 98 can be performed as compared with the conventional one shown in FIG.

[0017]

According to the present invention, in a bending apparatus for hemming, a female mold portion having a substantially V-shaped groove is provided at an upper portion of a base.
A fixed bed starting from the upper end of the V-shaped groove and forming a horizontal surface, forming a same surface as the fixed bed, and a swing provided so as to face the V-shaped groove. A ram having an arm, a scale, and blades on both sides of the swing bed; connecting the fixed bed and the swing bed with a roller hinge; A configuration in which straight lines connecting the surfaces of the beds are formed so as to be in contact with each other, and when the swing bed rotates, the tip of the blade operates so as to bite into the female mold portion including the V-shaped groove. Therefore, the member (work) bent and formed by the bending apparatus has a bent portion formed sharply over the entire width. , No longer it is possible to produce a sagging or the like. Also, since the ram used in the present invention has a blade with blades on both sides, even if one blade surface is damaged by continuous bending and forming work, work using a new blade on the other side. As in the conventional case, the inconvenience of interrupting the bending and forming operation for the regeneration operation of the blade surface is also eliminated. In addition, the bending process is performed with one blade, and the hemming operation, which is the finishing operation, is performed with the new blade, so that the hemming finish can be cleaned. Further, by providing a special pattern or the like on the blade surface of the rear side and performing the hemming operation using the blade surface, a pattern or the like can be provided on the hemmed surface. Furthermore, since the blades are provided on both sides of the ram, the scale provided on the scale can be read at the tip of the blade on the rear side. This facilitates the work of indexing the bending allowance and increases the indexing accuracy.

[Brief description of the drawings]

FIG. 1 is a perspective view showing the overall configuration of the present invention.

FIG. 2 is a cross-sectional view showing an operation state of the present invention.

FIG. 3 is a diagram showing a configuration of a ram and a scale according to the present invention.

FIG. 4 is a diagram showing a scale reading state of the scale according to the present invention.

FIG. 5 is a diagram showing a state of a work bent and formed by the bending apparatus according to the present invention;

FIG. 6 is a diagram showing an operation state in which hemming is performed by the bending apparatus according to the present invention;

FIG. 7 is a diagram showing a state of the work hemmed by the bending apparatus according to the present invention;

FIG. 8 is a perspective view showing the overall configuration of a conventional bending apparatus.

FIG. 9 is a diagram showing a scale reading state in a conventional example.

FIG. 10 is a diagram showing a state of a work formed by bending in a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Ram 11 Blade 11 'Blade 2 Scale 21 Scale 22 Adjustment slot 3 Swing bed 31 Balance weight 39 Mounting bolt 4 Stopper 5 Base 51 Female part 55 Fixed bed 59 Mounting bolt 6 Roller hinge 61 Roller outer peripheral surface 63 Hinge plate 65 Hinge plate 7 Arm 71 Auxiliary arm 8 Wing bolt 98 Bending allowance 99 Work

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) B21D 5/04 B21D 19/08 B21D 19/12

Claims (1)

(57) [Scope of request for utility model registration] An upper portion of a base has a female portion comprising a substantially V-shaped groove and a fixed bed which starts from an upper end surface of the V-shaped groove and forms a horizontal plane. , Forming the same surface as the fixed bed,
A swing bed provided so as to oppose each other with the V-shaped groove therebetween, a ram having an arm, a scale, and blades on both sides provided on the swing bed; and a roller hinge between the fixed bed and the swing bed. And formed so that a straight line connecting the surfaces of both beds is in contact with the outer peripheral surface of the roller hinge, and
A bend forming apparatus characterized in that, when the swing bed makes a rotational movement, the tip of the blade operates so as to bite into the female mold portion having the V-shaped groove.