JP3122373B2 - Blade material bending 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 blade bending apparatus for bending a strip-shaped blade.

[0002]

2. Description of the Related Art Heretofore, in a blade material bending apparatus for bending a strip-shaped blade material into a desired shape, the blade material has been supplied manually one by one.

[0003]

When the blade material is supplied manually as described above, there is a problem that the worker must always work in front of the bending device and the working efficiency is poor. .

Therefore, the present invention solves the above-mentioned problems and provides a blade material bending apparatus which can automatically and efficiently supply a strip-shaped blade material, has a simple structure, and is easy to manufacture. The purpose is to:

[0005]

SUMMARY OF THE INVENTION In order to achieve the above-mentioned object, a blade material bending apparatus according to the present invention has a movable clamp portion at a front end portion for holding a strip-shaped blade material in a fixed and openable manner. A swing arm pivotally mounted on a base such that a portion slightly closer to the rear end than the movable clamp is rotatable about a first vertical axis, and the base near the tip of the movable clamp of the swing arm A pair of fixed pieces disposed on the left and right at a predetermined mutual interval above, and the rocking arm swinging left and right to bend the blade material between the fixed piece and the moving clamp portion; A swing drive mechanism attached to a portion near the rear end, and a feed mechanism for sending the blade material forward along the swing arm, wherein the swing drive mechanism has a second vertical shaft attached to the swing arm. A nut member pivotally pivotable about a center; A ball screw which is screwed into wood, the third on the base as well as rotatably supporting the ball screw
It comprises a pivot frame that is swingably mounted around a vertical axis, a motor that rotates the ball screw, and a blade material supply mechanism that is disposed above the swing arm.

[0006] In addition, a movable clamp portion for holding the band-shaped blade material is provided at the front end portion, and the movable clamp portion is slightly swingable about the first vertical axis at a portion closer to the rear end than the movable clamp portion. A moving arm, a pair of fixed pieces disposed on the left and right sides with a predetermined mutual interval in the vicinity of the tip of the moving clamp portion of the swing arm, and the bending member for bending the blade material between the fixed piece and the moving clamp portion. A swing drive mechanism attached to the swing arm while swinging the swing arm from side to side; a feed mechanism for sending the blade material forward along the swing arm; and a feed mechanism disposed above the swing arm. A blade material supply mechanism,
The swing arm has an upper opening-shaped blade guide groove,
Further, the blade material supply mechanism includes a blade material standby member having a vertically penetrating window having a rectangular shape in plan view into which a plurality of the blade materials are vertically inserted, and a blade material standby member below the blade material standby member. A blade feed member for receiving the blade material at the lowermost end and sending the blade material to a side of the blade material standby member; and A blade material suction rotating member for rotating the material in a horizontally long vertical shape, wherein the blade material falls down in a horizontally long vertical state from the blade material suction rotating member and fits into the blade material guide groove of the swing arm. It is configured as follows. In addition, it is preferable that the blade material suction rotating member of the blade material supply mechanism has an electromagnetic magnet that can freely suck and drop the blade material.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail based on the illustrated embodiments.

FIG. 1 shows an embodiment of a blade material bending apparatus according to the present invention. This apparatus is a strip-shaped blade material 1 for punching a paper material such as cardboard or cardboard into a predetermined shape. Arm 3 having a movable clamp portion 2 at its front end for holding the blade member 1 in a fixed and openable manner, and a portion near the tip of the movable clamp portion 2 of the movable arm 3. A pair of fixed pieces 5, 5 arranged on the base 4,
A rocking drive mechanism 6 for rocking the rocking arm 3 left and right to bend the blade 1 between the fixed pieces 5 and 5 and the moving clamp portion 2, and moving the blade 1 forward along the rocking arm 3. There is provided a feed mechanism 7 for feeding out, and a blade material supply mechanism 8 disposed above the swing arm 3.

[0009] swing arm 3 is slightly rear end portion than the movable clamping portion 2 is pivotally mounted on a base 4 as rotatable first vertical axis L ₁ around. Further, as shown in FIG. 2, the swing arm 3 has a blade material guide groove 9 having an upper opening shape. The blade material guide groove 9 is formed linearly on the upper surface of the swing arm 3 along the longitudinal direction.

Further, guide members 10, 10 for guiding the blade member 1 so as to be securely fitted into the blade member guide groove 9 are attached to the swing arm 3. The guide members 10, 10 are rod-shaped members disposed in parallel above the guide groove 9 with a mutual interval slightly larger than the thickness of the blade material 1, and have inclined surfaces 11, 11 above the opposing surfaces. (See FIG. 6). Also, (returning to FIG. 2), one of the guide members 10
A sensor 12 for detecting that it is between 0 and 10 is provided.

Further, as shown in FIGS. 1 and 7, the swing drive mechanism 6 includes a nut member 13 which is the oscillating freely pivotally connected to the second vertical axis L ₂ around the rocking arm 3, the a ball screw 14 which is screwed into the nut member 13, a pivot support frame 15 attached swingably to the third vertical axis L ₃ around on a base 4 with rotatably supports the ball screw 14, ball A motor M for driving the screw 14 to rotate.

The feed mechanism 7 is provided with a rotatable ball screw 16 disposed along the swing arm 3 and is screwed to the ball screw 16 so as to be able to advance and retreat, and is slidable back and forth on the swing arm 3. It comprises a blade member feed member 18 to be attached, and a motor (not shown) attached to the front end of the swing arm 3 and driving the ball screw 16 to rotate. Blade material feed member 18
Has a clamp claw 17 for holding the rear end of the blade 1.

As shown in FIGS. 2 and 3, the blade material supply mechanism 8 includes a vertically penetrating window portion 19 having a rectangular shape in a plan view into which a plurality of blade materials 1 are vertically inserted. A blade material standby member 20 having a blade material feed member 21 that receives the lowermost blade material 1 below the blade material standby member 20 and sends the blade material 1 to the side of the blade material standby member 20; A blade material suction rotating member 22 that suctions the blade material 1 sent out by the blade material feeding member 21 from above and rotates the blade material 1 in a horizontally long vertical shape.

The blade member standby member 20 comprises a band-shaped flat plate portion 23 having the above-mentioned window portion 19, and a plurality of guide rods 24 standing around the window portion 19 of the flat plate portion 23. A strip-shaped support plate 25 is provided below the strip-shaped flat plate portion 23, and vertical plate pieces 26 that support both longitudinal end portions of the strip-shaped flat plate portion 23 are provided upright at both end portions in the longitudinal direction of the support plate 25. Further, the support plate 25 is fixed to the base 4 (not shown) via a mounting member (not shown).

The blade member feed member 21 has, on its upper surface, a blade member receiving recess 28 into which only the lowermost blade member 1 fits, and supports the support block members 27 fixed to the support plate 25. To be slidable in a direction parallel to the width direction of the blade member 1. Recess
The depth dimension of 28 is set slightly larger than the thickness dimension of the blade member 1. Further, the support plate 25 has an L-shaped mounting bracket.
A cylinder 30 is mounted via 29, and a piston rod 31 of the cylinder 30 is connected to the blade material feed member 21. Then, by driving the cylinder 30, the blade member feed member 21 slides in a direction parallel to the width direction of the blade member 1 as shown by an arrow A.

The blade material adsorbing rotary member 22 comprises a strip 33 and mounting pieces 35, 35 fixed to both longitudinal ends of the strip 33.
And electromagnetic magnets 34 fixed to the strip 33 at a predetermined pitch. That is, the blade material suction rotating member 22 of the blade material supply mechanism 8 has the electromagnetic magnet 34 that can freely suck and drop the blade material 1. Also, the lower ends of the mounting pieces 35, 35 are
Pivoting members 32 and through the horizontal axis member 36, mounted pivotably to a horizontal axis L ₄ around the support plate 25. A rotary driving body such as a rotary actuator (not shown) is interlockedly connected to the horizontal shaft member 36, and the driving force of the rotary driving body causes the blade material suction rotating member 22 to move to the standing state shown in FIG. The oscillating drive is performed within the range of the 90 ° oscillating angle with the sideways state shown.

The electromagnetic magnets 34 are electrically connected to control means (not shown), and the control means controls on / off. That is, an electromagnetic force is generated in the on state and the blade material 1 can be attracted, and the electromagnetic force is lost in the off state and the blade material 1
Can not be adsorbed. Thus, the blade member 1 is configured to drop from the blade member suction rotating member 22 in a horizontally elongated vertical state and fit into the blade member guide groove 9 of the swing arm 3.

Specifically, as shown in FIG. 6, when the blade material suction rotating member 22 is in a sideways state, the blade material suction rotating member 22
The blade material 1 adsorbed on the guide member 10 of the swing arm 3
Are set so as to be located directly above the mutual interval part. Also,
The blade material supply mechanism 8, the swing drive mechanism 6, and the feed mechanism 7 are automatically controlled by control means (not shown).

The operation of this blade material bending apparatus will now be described. As shown in FIG. 3, a plurality of blade materials 1 are stored in a blade material standby member 20 in a stacked state. The length of each blade 1 may be irregular (see FIG. 2).

Thereafter, as shown in FIG.
Operates to move the blade material feed member 21 to the blade material suction rotating member 22 side. Thereby, the blade receiving recess 28 of the blade transmitting member 21 is formed.
The blade material 1 at the lowermost end (shown by a) fitted into the blade member is sent out to a position immediately below the blade material suction rotating member 22. After that, the electromagnetic magnet 34 of the blade material adsorbing rotary member 22 is energized, and the blade material 1 rotates as shown by a virtual line.
(The lower surface of the electromagnetic magnet 34).

Thereafter, as shown in FIG.
The blade member feed member 21 returns to the original position. As a result, the blade receiving recess 28 of the blade feeding member 21 is
Returning to the position just below 19, the lowermost blade 1
Is stuck. In addition, one blade member 1 is a blade member rotating member.
It is held in a state where it is attracted to the electromagnetic magnet 34 of 22.

[0022] Thereafter, as shown in FIG. 6, the horizontal lying state blade member attraction rotating member 22 is rotated to a horizontal axis L ₄ around. As a result, the blade member 1 assumes a horizontally long vertical posture. At this time, the blade edge of the blade member 1 faces upward.

Thereafter, the energization of the electromagnetic magnet 34 is cut off, and the blade member 1 falls. The blade member 1 passes through the space between the guide members 10 of the swing arm 3 and fits into the blade member guide groove 9 of the swing arm 3. At this time, as shown in FIG. 1, the blade member feed member 18 is at the rear end position of the swing arm 3 and the sensor 12 detects the blade member 1 so that the blade member feed member 18 of the feed mechanism 7 moves forward. Then, the rear end portion of the blade material 1 is clamped by the clamp claws 17. When the sensor 12 detects the blade material 1, the blade material rotating member 22 returns to the state shown in FIG.

Thereafter, as shown in FIG. 7, the blade member feed member 18 of the feed mechanism 7 advances to send the blade member 1 forward, and the blade member 1 is moved forward from the movable clamp portion 2 by a predetermined distance. Then, the swing drive mechanism 6 operates to swing the swing arm 3 by the predetermined angle θ.

More specifically, the ball screw 14 is driven to rotate by the motor M, and the nut member 13 moves to one of the right and left (left side in the illustrated example). As a result, the swing arm 3 becomes the first
With swings in the same direction in the vertical axis L ₁ around the ball screw 14 and the pivot support frame 15 is swung in the same direction in the third vertical axis L ₃ around. As a result, one side surface of the blade member 1 is
The blade member 1 is bent between the inner edge of the fixed piece 5 and the tip of the clamp claw 17.

Thereafter, the swing arm 3 returns to the intermediate position B, the blade 1 is fed forward by a predetermined size by the feed mechanism 7, and the swing arm 3 swings to bend the blade 1. . The swing angle of the swing arm 3 is controlled by absolute programming. That is, with the swing arm 3 at the intermediate position B as shown in FIG. 1 as the origin, the bending is performed by swinging by a predetermined direction and angle, and in the subsequent bending, the intermediate position is also set. With B as the origin,
The swing arm 3 is controlled to swing by a preset direction and angle to perform bending. Thereby, since the error of the angle at which the swing arm 3 swings does not accumulate, the blade member 1 can be bent to an accurate angle. By the operation as described above, the blade member 1 bent into a predetermined shape as shown in FIG. 8 is formed.

Thereafter, the next blade 1 is supplied to the blade guide groove 9 of the swing arm 3 by the blade supply mechanism 8. The supply of the blade material 1 is performed when the swing arm 3 is stopped at the intermediate position B (origin position).

According to the blade bending apparatus, the blade 1 can be automatically supplied to the blade guide groove 9 of the swing arm 3. That is, if the worker supplies a plurality of blade materials 1 at a time to the blade material standby member 20 of the blade material supply mechanism 8, the blade materials 1 are automatically supplied in order, and
Bendable. Therefore, the labor of the worker can be reduced, and other work can be simultaneously performed. further,
The blade material supply mechanism 8 can be formed compact, which can contribute to downsizing of the entire blade material bending apparatus.

Since the motor M is not attached to the swing arm 3, the moment of inertia of the swing arm 3 is reduced, and the swing arm 3 can be stopped at an accurate angle. Therefore, it is possible to contribute to improvement in bending accuracy.

[0030]

The present invention has the following remarkable effects by the above-mentioned structure.

According to the blade material bending apparatus of the first aspect, since the moment of inertia of the swing arm 3 is reduced, the swing arm 3 can be stopped at an accurate angle, and
It can contribute to improving bending accuracy. In addition, the structure is simple and easy to manufacture. Further, since the blade 1 is bent in the direction opposite to the swinging direction of the movable clamp 2, the front end portion of the blade 1 can be reduced in the right and left direction during the bending process, thereby causing an injury. Can be prevented. Further, the supply of the blade material 1 can be easily performed by utilizing the own weight of the blade material 1.

According to the blade material bending apparatus of the second aspect, the blade materials 1 can be automatically and efficiently supplied to the swing arm 3 one after another. Therefore, the labor of the worker can be reduced. In addition, one worker can simultaneously perform other work. Further, the blade material supply mechanism 8 can be formed compactly, which can contribute to downsizing of the entire blade material bending apparatus.

According to the blade material bending apparatus of the third aspect, the same effect as that of the second aspect can be obtained, and the structure of the blade material supply mechanism 8 can be simplified. In addition, the blade material supply mechanism 8 can be formed more compact.

[Brief description of the drawings]

FIG. 1 is a simplified plan view showing an embodiment of the present invention.

FIG. 2 is an enlarged perspective view of a main part.

FIG. 3 is an enlarged sectional view of a blade material supply mechanism.

FIG. 4 is an operation explanatory view of a blade material supply mechanism.

FIG. 5 is an operation explanatory view of a blade material supply mechanism.

FIG. 6 is an operation explanatory view of a blade material supply mechanism.

FIG. 7 is a diagram illustrating the operation of cutting the blade material.

FIG. 8 is a perspective view of a main part after bending of the blade member.

[Explanation of symbols]

REFERENCE SIGNS LIST 1 blade material 2 moving clamp portion 3 swing arm 4 base 5 fixed piece 6 swing drive mechanism 7 feed mechanism 8 blade material supply mechanism 9 blade material guide groove 13 nut member 14 ball screw 15 pivot frame 19 window 20 blade Material standby member 21 Blade material feed member 22 Blade material suction rotating member 34 Electromagnetic magnet L ₁ First vertical axis L ₂ Second vertical axis L ₃ Third vertical axis M Motor

Claims (3)

(57) [Claims] 1. A movable clamp portion 2 for holding a strip-shaped blade member 1 in a fixed and openable manner at a front end portion, and a portion slightly closer to a rear end than the movable clamp portion 2 has a first vertical axis L.
A swing arm 3 pivotally mounted on a base 4 so as to be freely rotatable around _{one end,} and the swing arm 3 is disposed on the base 4 near the tip of the movable clamp portion 2 at a predetermined mutual interval on the left and right. A pair of fixed pieces 5, 5, the swing arm 3 is swung right and left to bend the blade member 1 between the fixed pieces 5, 5 and the moving clamp portion 2, and after the swing arm 3. A swing drive mechanism 6 attached to an end portion is provided, and a feed mechanism 7 for sending the blade material 1 forward along the swing arm 3. The swing drive mechanism 6 is attached to the swing arm 3. A nut member 13 pivotally pivotable about the second vertical axis L ₂ , a ball screw 14 screwed into the nut member 13, the ball screw 14 being rotatably supported, and the base 4 a third vertical axis L ₃ pivoting support frame 15 mounted swingably around on,
A blade material bending apparatus comprising: a motor M for rotating and driving the ball screw 14; and a blade material supply mechanism 8 disposed above the swing arm 3. 2. A strip-shaped swing the blade member 1 to the first vertical axis L ₁ around the slightly rear end portion than the movable clamping unit 2 together with the front end portion of the movable clamping portion 2 for clamping A swing arm 3 which can be freely moved, a pair of fixed pieces 5 and 5 which are disposed in the vicinity of the distal end of the movable clamp portion 2 of the swing arm 3 at a predetermined interval from each other, and The swing arm 3 is swung right and left to bend the blade member 1 between the movable clamp portion 2 and a swing drive mechanism 6 attached to the swing arm 3, and the swing arm 3 is moved along the swing arm 3. A feed mechanism 7 for sending the blade material 1 forward, and the swing arm 3
The swing arm 3 has an upper opening-shaped blade guide groove 9, and the blade supply mechanism 8 is provided with the blade material. The blade material standby member 20 having a vertically penetrating window 19 having a rectangular shape in a plan view into which a plurality of the blade members 1 are vertically inserted, and the lowermost blade material below the blade material standby member 20 1, a blade member feeding member 21 for sending the blade member 1 to the side of the blade member standby member 20, and the blade member 1 sent out by the blade member sending member 21 is sucked from above to cut the blade member 1. Blade material suction rotating member 22 that rotates 1 in a horizontally long vertical shape
The blade material 1 is configured to fall from the blade material suction rotating member 22 in a horizontally long vertical state and fit into the blade material guide groove 9 of the swing arm 3. Blade material bending device. 3. The blade material suction rotating member 22 of the blade material supply mechanism 8.
3. The blade material bending apparatus according to claim 2, further comprising an electromagnetic magnet 34 capable of adsorbing and dropping the blade material 1.