JPS5843165B2 - Molding bending device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a molding bending device for forming a molding, which is a bent product of a band-shaped material of various cross sections, such as a molding for a window frame of an automobile, into a curve.

Conventionally, this type of molding was formed into a curve by holding both ends of a material 70 cut to a required length with clamps 71, supporting it on a guide rod 72, and shaping it into the desired shape, as shown in FIG.
This is carried out by pressing the mold 73 which has been pressed onto the material 70 using a cylinder 74, but this is not only inefficient as the work is done intermittently, but also there is a gripping margin 7 at both ends of the material TO.
5, which results in material waste, requires time and skill to manufacture to obtain the desired product, requires time and effort to manufacture the mold 73 that fits the desired product, and requires the mold 73. It was difficult to adapt to various products immediately.

Therefore, the present invention provides a molding bending device that can bend while continuously supplying material, which not only improves work efficiency, but also eliminates material waste in product manufacturing, eliminates the need for molds, and can quickly adapt to various products. This is what I am trying to do.

Next, an embodiment of the present invention shown in FIG. Support rollers 5 in the left and right directions are supported at the front and rear of the machine, and a pulse transmitter 6 attached to the machine frame 4 is connected to the shaft end of one of the receiving rollers 5, and the pulse transmitter 6 is located directly above each receiving roller 5. Each feed roller 7 is supported on the machine frame 4 so as to be adjustable up and down, and each feed roller 7 is connected to a pulley shaft 8 supported on the machine frame 4 via a universal joint 9, so that both pulley shafts 8
. Rotating upper and lower feed rollers 7
, the material W inserted between the receiving rollers 5 is sent out rearward.

A material positioning guide roller element 13 fixed to a support frame 12 is provided at the material W delivery destination of this material delivery device 1, and the support frame 12 is removably attached to the machine frame 4, and the guide roller element 13 will be described later. It has the same shape as the material bending guide roller element 23.

The moving guide roller device 2 is disposed close to the material sending destination of the guide roller element 13 of the material feeding device 1, and the moving guide roller device 2 is connected to the first slide 1.
The first slide 14 is provided so as to be movable in the left-right direction by slidingly inserting both ends of the left-right guide rods 15 attached to the upper and lower sides of the first slide 14 into the receiving member 17 of the machine frame 16 on the base 3. A second slide 18 is provided on the first slide 14 so as to be slidable in the vertical direction, and the first slide 14 and the second slide 18 constitute a slide mechanism 19, and the second slide 18 is provided with a guide roller mechanism 20. .

The guide roller mechanism 20 includes a guide roller element 23 in the center of the rotary plate mechanism 21 via a universal joint tank 22.
As shown in FIG. 6, the rotating plate mechanism 21 includes an annular rotating plate 26 provided with teeth 24 on the periphery and formed on a trapezoidal periphery 25. The grooved trochanter 27 and the grooved drive trochanter 28 provided on the front surface of the drive trochanter are supported in a pinch-like manner, and the teeth 24 mesh with the pinion portion 29 provided at the bottom of the groove of the drive trochanter 28 to drive the drive trochanter. By driving the trochanter 28, the rotary plate 26 is rotated about the front-rear direction.

In the universal relay tank 22, an outer frame 30 is removably fixed to the center of the front surface of a rotating plate 26 with a screw 31, and the center axis of the rotating plate 26 passes above and below an inner frame 32 arranged inside the outer frame 30. The outer frame 30-1 is supported by vertical pins 33, and the pins 33
Pins 34 are provided on the left and right sides of the inner frame 32 along the left and right direction intersecting the axis of the inner frame 32, and a guide roller element 23 is disposed within the inner frame 32.

The guide roller element 23 includes a pair of upper and lower rollers 3.
5.35', the shaft 36.36 is attached to the roller case 3.
7 and insert the roller 35.35' into the roller case 3.
It faces the hollow part 38 of the T-shaped shaft, and the gap 39 between the rollers 35 and 35' matches the cross-sectional shape of the material W, and the positioning guide roller element 13 is also formed in the same manner as this guide roller element 23. has been done.

Furthermore, the guide roller element 23 is connected to the roller case 3.
7 is supported on the inner frame 32 by the pin 34, and the center of the gap 39 is located at the intersection of the axes of the pins 33 and 34.

A rotating plate driving motor 40 attached to the second slide 18 is connected to the shaft of the drive trochanter 28, and a detection pulse motor 40 attached to the second slide 18 is connected to the other end of the shaft of the drive trochanter 28. A transmitter 41 is connected.

Further, a first slide 1 is provided at the lower end of the second slide 18.
A vertical screw 43 of a ball screw mechanism 42 provided in the first slide 14 is connected, and an input shaft 44 of the ball screw mechanism 42 is connected to a second slide drive motor 46 provided in the first slide 14 via a belt transmission mechanism 45. A pulse transmitter 47 provided on the first slide 14 is connected to the input shaft 44, while a machine frame 16 is connected to one side of the first slide 14.
The left and right screws 49 of the ball screw mechanism 48 provided on the machine frame 16 are connected, and the input shaft 50 of the ball screw mechanism 48 is connected to the first slide drive motor 52 provided on the machine frame 16 via a belt transmission mechanism 51, and the input A pulse transmitter 53 provided on the machine frame 16 is connected to the shaft 50.

These motors 11, 40, 46, 52 are connected to the output side of the computer 54, and the pulse generators 6, 41, 4
6.52 is connected to the input side of the computer 54.

In the figure, 55 is a homing machine provided in front of the material selection device 1, and 56 is a cutter provided in the rear of the movable guide roller device 2, which is connected to the output side of the computer 54.

Next, the operation of this device will be explained.

The linear material W along the front-rear direction of the required cross section obtained by the homing machine 55 is sequentially moved between the receiving roller 5 of the rear material delivery device, the feed roller 7, the gap 57 between the fixed side guide roller element 13, and the moving guide roller device. When the motor 11 is driven by operating the computer 54 while the motor 11 is inserted into the gap 39 of the guide roller element 23, the pulley shaft 8 connected thereto rotates, and the other pulley shaft 8 is also rotated via the transmission belt 10. These rotations drive the feed rollers 7, 7 to rotate in the same direction through the universal joints 9.9, respectively, and feed the material W backward.

Due to this sending out, the receiving roller 5 rotates continuously, so the pulse transmitter 6 detects the supply value of the material W and the computer 54 detects the supply value of the material W.
Enter.

Since the computer 54 is previously inputted with a dimension program 58 (described later) for the product M of the mall, it issues a command signal based on this dimension program 58 in accordance with the supply value of the material W, and this command signal causes the motors 40, 46 to ,5
2 is driven in accordance with the supply value of material W.

These motors 40, 46, 52 are driven by a computer 54 by corresponding pulse generators 41, 47, 53.
This feedback signal drives the motors 40, 46, and 52 by a predetermined amount.

The motor 46 is driven by a predetermined amount by vertically deflecting the second slide 18 by a predetermined amount via the belt transmission mechanism 45 and the ball screw mechanism 42, and the rotating plate 2 supported by the second slide 18
6. The guide roller element 23 is vertically displaced by a predetermined amount with respect to the fixed guide roller element 13 via the universal joint mechanism 22 connected thereto.

Similarly, the motor 52 is driven by a predetermined amount via the belt transmission mechanism 51 and the ball screw mechanism 48 to the first slide 1.
4 in the left-right direction by a predetermined amount, and the guide roller element 23 is deflected in the left-right direction by a predetermined amount via the second slide 1B supported by the first slide 14, and therefore the rotating plate 26 and the universal joint mechanism 22. .

Further, the drive of the motor 40 by a predetermined amount rotates the guide roller element 23 about the axis of the rotary plate 26 via the drive rotor 28, the rotary plate 26, and the universal joint mechanism 22.

Due to the deflection and angular rotation of the guide roller element 23, the material W being fed out is separated from the fixed guide roller element 13 and the movable guide roller element 2.
3, it is bent at a predetermined radius of curvature and given a predetermined twist.

At this time, the guide roller element 23 is connected to the universal joint mechanism 22.
Since the inclination in the front-rear direction is freely possible by the pins 33 and 34, the attitude of the material W inserted through the material insertion gap 39 of the guide roller element 23 is automatically controlled in the passing direction of the material W, and the material W is inserted into the gap. 39 passed without any problems.

When the material W that has passed through the gap 39 of the guide roller element 23 reaches a predetermined length, the signal from the pulse transmitter 6 indicates a predetermined value, and the cutter 56 is operated in response to a command from the computer 54, thereby causing the material W to It is cut into product M.

Next, inputting the dimension program 58 to the computer 54 will be described.

To simplify the explanation, the product M to be obtained from the material W has a value X in the length direction, as shown in FIG.

The radius of curvature R between X1, between values X1X2, and between values X2X3, respectively.
1, R2゜R3 shape M', first, the material W
is in the feeding state as described above, and the first slide 14 is sequentially moved by an appropriate value to perform a trial ejection of the material W.
The radius of curvature R of the material W and the first slide 14 as shown in the figure
The R-Y correlation curve data 59 with the amount of deviation Y is obtained, and the data 59 is input into the computer 54 in advance.

Next, the X-R program 60 of the supply value X of the material W and the radius of curvature R shown in FIG.
8 into the computer 54 and the apparatus is operated as described above, the computer 54 will input the radii of curvature R1, R2, R3 and the amount of deviation ¥1.8 as shown in FIG. Y2
．． The X-Y program 61 converted from ¥3 is output as a command program signal, and the material W is bent as desired as described above.

The movement control of the second slide 18 and the rotation control of the rotating plate 26 by the dimension program 58 are also performed in the same manner as the movement control of the first slide 14 described above.

Note that the guide roller element has three rollers 62,
63.64.

Furthermore, although a closed-loop method using a pulse transmitter is shown as drive control by a computer, an open-loop method may also be used.

As described above, the device of the present invention is provided with a guide roller element for material positioning in which a material insertion gap is formed by a plurality of rollers at the material delivery destination of the material delivery device, and is located at the material delivery destination of the guide roller element. A material bending gyroscope element having a material insertion gap formed with a plurality of rollers is supported within an outer frame so as to be tiltable with respect to the outer frame to form a universal joint mechanism, and the outer frame of the universal joint mechanism is The positioning guide roller element is supported by a slide mechanism that is movable in a plane in a plane perpendicular to the material feeding direction, and a drive device that moves the slide mechanism is used to control the supply value of the material supplied by the material feeding device. It is characterized by being controlled and connected to a computer that issues command signals in response to The automatic posture control of the roller element allows it to pass through the guide roller element smoothly, which not only improves work efficiency, but also eliminates material waste in the production of bent products, eliminates the need for molds, and allows for various three-dimensional gaps. Able to respond immediately to products.

Furthermore, in the second invention, the material can be twisted by rotating the rotating plate mechanism together with the three-dimensional bending of the material, and when the material has an asymmetrical cross-sectional shape on both sides in the bending direction, torsional strain can be caused. However, the desired bent product can be obtained while correcting this torsional distortion by reverse twisting operation by rotating the rotary plate mechanism.

[Brief explanation of the drawing]

Fig. 1 is an explanatory front view of a conventional device, Fig. 2 and the following show embodiments of the present invention, Fig. 2 is a partially cutaway side view, and Fig. 3 is a partially cutaway side view.
The figure is a turning plan view, Figure 4 is an enlarged front view of the movable guide roller device, Figure 5 is an enlarged front sectional view showing the relationship between the guide roller element and the universal joint mechanism, and Figure 6 is the rotating plate and drive trochanter. Fig. 7 is an electrical system diagram, Fig. 8 is an illustration of the product, Fig. 9 is a correlation curve diagram between the radius of curvature of the material and the amount of movement of the slide, and Fig. 10 is a diagram of the correlation between the radius of curvature of the material and the amount of slide movement. FIG. 11 is a dimensional program diagram, FIG. 11 is a command program diagram, and FIG. 12 is an enlarged front view of another example of a guide roller element. 1...Material delivery device, 2...Movement guide roller device, 3...Base, 4...
・Machine frame, 5... Receiving roller - 6... Pulse transmitter, 7... Feed roller 8...
- Pulley shaft, 9...Universal joint, 1
0...Transmission belt, 11...Motor, 12...Support frame, 13...Guide roller element, 14...First slide , 15
...Guide rod, 16 ...Machine frame, 17
...Receiving member, 18...Second slide,
19...Slide mechanism, 20...Guide roller mechanism, 21... Rotating plate mechanism, 22...
... Universal joint mechanism, 23 ... Guide roller element, 24 ... Teeth, 25 ...
Trapezoid periphery, 26... Rotating plate, 27...
Trochanter, 28... Drive trochanter, 29... Pinion part, 30... Outer frame, 31... Screw, 32... Inner frame, 33.34...pin, 35,35'...roller 36...
・Shaft, 37...Roller case, 38...
...Cavity, 39...Gap, 40...
Motor, 41...Pulse transmitter, 42...
... Ball screw mechanism, 43 ... Screw, 44.
...Input shaft, 45...Belt transmission mechanism,
46...Motor 47...Pulse transmitter, 48...Ball screw mechanism, 49...
...Screw, 50...Input shaft, 51...
Belt transmission mechanism, 52...Motor 53...
... Pulse transmitter, 54 ... Computer 55 ... Homing machine, 56 ...
... Cutter 57 ... Gap, 58 ...
・Dimension program, 59...RY correlation curve data, 60...X-R program, 62, 63
,64...Roller M...Product, M/
,...Figure, R2R1, R2, R3...
Radius of curvature, w, w'... Material, X...
Supply value, Xo. Xo, X2. X3...Value, Y, ¥1. ¥2. ￥
3...Amount of deviation.

Claims (1)

[Scope of Claims] 1. A material positioning guide roller element having a material insertion gap formed by a plurality of rollers is provided at a material delivery destination of a material delivery device, and a material positioning guide roller element is provided at a material delivery destination of the guide roller element and a plurality of rollers are provided at a material delivery destination of the material delivery device. A guide roller for material bending with a material insertion gap formed therein is supported within an outer frame so as to be tiltable with respect to the outer frame to form a universal joint mechanism, and the outer frame of the universal joint mechanism is The positioning guide roller element is supported by a slide mechanism that is movable in a plane in a plane perpendicular to the material feeding direction, and a drive device that moves the slide mechanism is used to control the supply value of the material supplied by the material feeding device. A molding bending device characterized in that it is controlled and connected to a computer that issues a command signal in response to. 2 A guide roller element for material positioning in which a material insertion gap is formed by a plurality of rollers is provided at the material delivery destination of the material delivery device, and a material positioning guide roller element is provided at the material delivery destination of the guide roller element and a material insertion gap is formed by a plurality of rollers. The formed guide roller element for material bending is supported within an outer frame so as to be tiltable with respect to the outer frame to form a universal joint mechanism,
The outer frame of the universal joint mechanism is attached to a rotating plate mechanism that is rotatable about the material feeding direction of the material positioning guide roller element, and the rotating plate mechanism is connected to the material of the material positioning guide roller element. A drive device that is supported by a slide mechanism provided so as to be movable in a planar manner in a plane perpendicular to the feeding direction, and that moves the slide mechanism and a drive device that angularly rotates the rotating plate mechanism are driven by the material feeding device. A molding bending device characterized in that it is controlled and connected to a computer that issues a command signal in accordance with the supply value of the material to be supplied.