JPH0825131B2 - Method and device for removing rope from belt side surface - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and apparatus for removing ropes on the side surfaces of belts such as toothed belts, multi-ribbed belts and cut edge V belts, and more particularly to ropes exposed on the side surfaces of toothed belts. And a device for automatically removing fluff or fraying of the same.

[0002]

2. Description of the Related Art Conventionally, toothed belts whose cores are exposed on the side surface of the belt, multi-ribbed belts, cut edge V-belts, etc. are cut from a cylindrical vulcanization sleeve having a spirally wound rope into individual belt groups. However, the core wire may be cut in the longitudinal direction of the belt depending on the position of the cutter. At this time, the cut core wire is exposed on the side surface of the obtained belt, and such a belt is run. The exposed core wire caused fraying or fuzzing due to friction with the pulley, belt vibration, and small binding force of the core wire itself.

In particular, when polyester fiber is used as the core wire as a rope, a method of fixing and fusing the frayed rope at a temperature equal to or higher than the melting point of the fiber even if fraying appears is disclosed in US Pat. No. 200,662.

[0004]

However, when the aramid fiber is used as the core wire, since the fiber itself has rigidity, if the binding force is increased by the adhesive treatment, the rope is It is not suitable as a belt rope because it has no flex fatigue resistance. Therefore, when trying to use a rope made of aramid fiber, the rope exposed on both side surfaces of the obtained belt is eventually improved by improving the twisting coefficient and performing a bonding treatment having bending fatigue resistance. There is a problem in that the appearance is deteriorated due to fluffing and fraying, and the belt is detached from the belt main body while the belt is running and is wound around the rotating shaft.

Therefore, at present, a method that relies on manpower is employed in which both sides of the belt are squeezed by a blade to forcibly pull out the rope and cut and remove it. With this method, pull out the rope per belt,
It takes a lot of time to cut it, labor is harsh, and there is a problem that the rubber portion on the side surface of the belt is damaged.

The present invention has been made in view of these problems, and an object thereof is to provide a method and apparatus for finishing a belt having a good appearance by digging up and removing the rope exposed on the side surface of the belt in a short time. To do.

[0007]

That is, a method of removing a rope on a belt side surface, which is a feature of the present invention, applies tension to a processed belt suspended between a driving pulley and a driven pulley to cause the belt to travel, At least one grinding wheel that can only come into contact with the area of the rope is fixed by arranging the roll that engages with the belt to fix the position of the belt, and only when the rope is exposed on the side of the belt near this position. In the direction
It is to dig up and grind the exposed rope by rotating the wheel.

Further, the device for removing the rope exposed on the belt side surface of the processed belt by grinding has a belt running portion for hanging the processed belt on a driving pulley and a driven pulley and running the belt under tension. , A belt positioning roll that engages with a running belt, a rope detection sensor that is arranged opposite to the belt side surface and detects whether there is a rope exposed on the belt side surface, and the belt width direction by the output signal of the sensor It consists of a grinding unit with a rotatable grinding wheel that moves to and abuts only the exposed rope and grinds it.

[0009]

In the belt side rope removing method of the present invention, tension is applied to the processed belt suspended between the drive pulley and the driven pulley to cause the belt to travel, and the roll is engaged with the running belt, The vertical run of the belt and the slight movement in the width direction of the belt are prevented, and in this state, the rotating grinding wheel is brought into contact with only the rope exposed from the side of the belt. The exposed rope can be dug up and removed by rotating it.

Further, in this apparatus, the belt to be processed is clamped by the belt positioning roll to clamp the belt to be processed to prevent the belt from swinging in the vertical direction and the fine movement in the belt width direction to prevent its position. The grinding wheel of the grinding unit is independently abutted on the belt side and simultaneously rotated by activating the rope detection sensor that fixes the wheel and confirms the presence of the rope exposed on the belt side. Can be dug up and removed automatically. If there is no exposed rope on the side of the belt, the signal from the rope detection sensor
The grinding wheel moves away from the side of the belt.

Further, at least one of the drive pulley and the driven pulley is provided with a flange having a space corresponding to the width of the belt to be processed on one side or both sides, or the belt positioning roll is slightly wider than the width of the belt to be processed. Providing flanges with a large interval prevents fine movement of the processed belt in the belt width direction. Further, it is also possible to arrange the cords of the belt in a straight line and accurately and continuously perform the rope removal processing on the side surface of the belt.

[0012]

EXAMPLES The method for removing the rope on the side surface of the belt and the apparatus therefor according to the present invention will now be described in more detail with reference to examples. FIG. 1 is a plan view showing the entire apparatus of the present invention, and FIG. 2 is a side view of FIG. According to this, in the apparatus of the present invention, the belt running part 1 which hangs the processed belt on the driving pulley and the driven pulley and runs it under tension, and the belt back surface and the belt belly surface which are running are contacted or engaged. The belt positioning roll 2 and the rope detection sensor 3 arranged to face the belt side surface to detect the presence or absence of the rope exposed on the belt side surface, and the output signal of the sensor 3 moves the belt in the belt width direction. Grinding unit 4 having a rotatable grinding wheel that abuts only on the exposed rope and grinds it
It consists of

The belt running unit 1 comprises a drive pulley 6 and a driven pulley 7 that moves. On both sides of each pulley 6, 7,
Flange 8 having an interval of 1 to 3 mm larger than the belt width,
9 is provided to prevent movement of the belt 10 to be processed in the width direction. The rotation of the drive pulley 6 is performed from the drive drive prime mover 11 via the transmission belt 12, while the driven pulley 7 applies tension to the suspended workpiece belt 10 and removes the workpiece belt 10 from the pulley. In order to relieve the tension, a linear reciprocating motion is performed in a direction toward or away from the drive pulley 6. The driven pulley 7 is connected to the shaft 15 of the tension cylinder 14 arranged on the fixed base 13, and is moved by the operation of the cylinder 14. The flanges 8 and 9 may be provided on both sides or one side of at least one of the drive pulley 6 and the driven pulley 7.

The processed belt 10 which is hung on the pulleys 6 and 7 is generally a toothed belt, and is also a multi-ribbed belt, a cut edge V belt or the like in which the rope is exposed on the belt side surface. belongs to.

The belt positioning roll 2 is composed of a pressing roll 19 and a fixed roll 20 which are in contact with and engage with the belt back surface 17 and the belt belly surface 18, respectively. The fixed roll 20 is fixed in position and has flanges on both sides of the fixed roll 20 with a spacing substantially matching the belt width. This is a processed belt 1 wound around a drive pulley 6 and a driven pulley 7.
This is so that the 0 core line becomes a straight line. on the other hand,
The presser roll 19 presses the belt back surface 17 with a spring to prevent the work belt 10 from swinging in the vertical direction.
If the belt 10 to be processed is sufficiently clamped to prevent the belt from swinging in the vertical direction and the fine movement in the belt width direction to prevent the position from being fixed, the pressing roll 19 and the fixed roll 20 can be fixed. Need not be provided with a flange.

Moreover, the belt positioning roll 2 is
It is located between the two pulleys 6 and 7 and is located approximately in the middle of the belt tension side, and prevents the belt from wobbling and a slight movement in the width direction. Therefore, the cutting process of the exposed rope is performed in the vicinity of the belt positioning roll 2. The flat press roll 19 that contacts the belt back surface 17 is movable. This will be described later.

On the other hand, the fixed roll 20 engages with the belt belly surface 18, and is a toothed roll when the rope on the side surface of the toothed belt is ground. These presser rolls 1
The pair of belt positioning rolls 2 including the fixing roll 20 and the fixed roll 20 can prevent the toothed belt from swinging in the vertical direction and the fine movement in the belt width direction to accurately hold the grinding position of the exposed rope.

The grinding unit 4 supports a support plate 22 that moves in the belt width direction and the belt thickness direction, a wheel housing 23 fixed to the support plate 22, and a grinding wheel 24 provided in the wheel housing 23 for rotation. It is composed of a cutting motor 25 mounted on the plate 22.

That is, in this grinding unit 4, a flat plate-shaped grinding wheel 24, which abuts only on the area of the rope exposed on the side surface of the belt, is arranged so as to face the side surface of the belt. This grinding wheel 24 is used for the support plate 2
2 from the grinding motor 25 mounted on the transmission belt 2
Rotate through 6. The support plates 22 are separated on both sides of the belt and arranged in parallel, and move in the belt width direction and the belt thickness direction. The pair of support plates 22 are respectively connected to the shaft 28 of the left-right moving cylinder 27,
The cylinder 27 operates to move independently in the belt width direction.

The grinding wheel 24 has a grain size of # 80 to # 120 having a diamond electrodeposited on the surface thereof, or a grindstone of a high hardness WA abrasive material, and its tip shape is 0.4.
Round or flat with a width of up to 1.0 mm. Also,
The slits may be provided at regular intervals on the circumference.

Further, the substrate 30 is arranged in parallel with the support plate 22, four guide rods 31 are fitted into the respective support plates 22, and the ends thereof are fixed to the substrate 30. This board 3
0 is a pair of guide rails 33 fixed to the frame 32
Is installed through the guide receiver 34. The front and rear moving cylinders 3 are attached to the end surface of the one support plate 22.
The shaft 36 of No. 5 is connected, and the operation of the cylinder 35 causes the substrate 30 to move back and forth, whereby the grinding wheel 24 also moves. In this way, the pair of grinding wheels 24 independently moves in the belt width direction and simultaneously moves in the direction perpendicular to the belt width direction, and the grinding allowance can be adjusted.

The grinding wheel 24 is moved by the operation of each rope detection sensor 3 provided between the belt positioning roll 2 and the driven pulley 7 and facing the belt side surface 16. The rope detection sensor 3 is a photoelectric switch that detects the presence or absence of a rope having a color different from the rubber of the belt body exposed on the belt side surface 16. Generally, the belt side surface of the rope is not exposed over the entire circumference of the belt and is usually at two to three places, and only this region needs to be ground. Of course, the exposed area of the rope also differs depending on the left and right sides of the belt. If the entire circumference of the belt is ground, the newly buried rope will be dug up.

Therefore, it is important that the rope detecting sensor 3 is arranged in front of the position of the grinding wheel 24 and detects the presence or absence of the exposed rope. When the rope detection sensor 3 detects the rope exposed on the side surface of the running belt, the grinding unit 4 operates and the wheel 2
4 moves until it contacts the side of the belt. On the contrary, if the sensor 3 does not detect the exposed rope,
The grinding wheel 24 moves in the belt width direction so as to move away from the side surface of the belt. The grinding wheel 24 depends on the output signal of the rope detection sensor 3 provided on the side surface of the belt.

The pressing roll 19 of the belt positioning roll 2 is mounted on a bracket fixed to the tip of an auxiliary rod 39 fitted into the upper guide rod 31 of the four guide rods fitted into the support plate 22. It is mounted and moves back and forth together with the support plate 22 to abut and press the belt back surface 17. The pressing force of the roll 19 itself is determined by the magnitude of the spring force.

Next, the operation of the apparatus and the rope removing method will be described below. First, after the driven pulley 7 of the belt traveling unit 1 is moved in the direction of approaching the drive pulley 6 by the operation of the tension cylinder 14, the processed belt 10 is hung on the driven pulleys 6 and 7 and the driven pulley 7 is hung. Is moved to apply tension to the belt 10 to be processed. The belt tension is usually 40 to 100 kg. At the same time, the fixed roll 20 is engaged with the tooth portion of the belt abdominal surface.

Subsequently, the drive drive motor 11 and the grinding processing motor 25 are turned on so that the processed belt 10 has a peripheral speed of 5
Installed at ~ 20mm / min, cutting wheel 24
To rotate. Further, the front-rear moving cylinder 35 is operated to move the grinding wheel 24 upward to the position of the belt pitch line. As a result, the pressing roll 19 is brought into contact with the back surface of the belt, and the belt is vertically swung, and fine movement in the belt width direction is prevented, so that the belt is reliably positioned. The pressing force of the pressing roll 19 is 15 to 30 kg.

After that, the rope detection sensor 3 is activated. When the sensor 3 detects the rope exposed on the side surface of the belt, the left and right moving cylinder 27 is operated to bring the rotating grinding wheel 24 into contact with the side surface of the belt to grind the rope. At this time, the rotation direction of the grinding wheel 24 is opposite to the traveling direction of the processed belt 10. In addition, the pressing force of the grinding wheel 24 is 20 kg at maximum, usually 5 to 10 kg.
Is.

3 and 4 show a state in which the grinding wheel 24 is grinding the rope exposed on the side surface of the belt. If the wheel 24 digs up the rope, the rope is wound around the wheel 24. Be surely ground. Further, in this case, the outer peripheral portion of the grinding wheel 24 contacts only the region where the rope exists, and the other regions are not ground. The rotation of the grinding wheel 24 may be the same as the belt traveling direction.

A timer detects one round of the belt length,
When the exposed rope on the side surface of the belt disappears, the grinding wheel 24 is separated from the side surface of the belt, the rotation of the wheel 24 and the rotation of the drive pulley 6 are stopped, and the tension cylinder 14 is operated to relieve the belt tension.
At the same time, the front-rear moving cylinder 35 is operated to move the grinding wheel 24 downward. These operations described above are controlled by an automatic sequence. After this, the processed belt 10 is driven and taken out from the driven pulleys 6 and 7.

The belt 10 to be processed used in the method and apparatus of the present invention is most preferably a toothed belt having an aramid fiber rope as a core wire. In the case of a toothed belt, the rope is accurately positioned on the pitch line of the belt in the manufacturing process, and moreover, it is arranged linearly.
4 can be accurately installed on the pitch line of the belt, and only the rope exposed on the side surface of the belt can be ground. However, of course, a multi-ribbed belt or a cut edge belt can also be used.

[0031]

As described above, according to the rope removing method for the belt side surface of the present invention, tension is applied to the processed belt suspended between the driving pulley and the driven pulley while the belt is running, and the running belt is rolled. Engagement prevents vertical runout of the belt and fine movement in the belt width direction.At this position, the rope is exposed only from the side of the belt, and the grinding wheel is brought into contact with it at the same time. By rotating in the opposite direction, the exposed rope can be dug up and ground accurately.

Further, in the apparatus of the present invention, the belt traveling unit applies tension to the belt to cause the belt to travel, and the position of the belt to be processed is fixed by the belt positioning roll that engages with the running belt. Each of the grinding wheels of the grinding unit is actuated by the signal of the rope detection sensor arranged at, and the exposed rope is automatically and accurately ground by contacting and rotating with the belt side surface. Moreover, if a flange is provided on at least one of the drive pulley and the driven pulley, it is possible to reliably prevent fine movement of the processed belt in the width direction, and the side surface of the belt can be ground more accurately.

[Brief description of drawings]

FIG. 1 is a plan view of a main portion of a belt side rope removing device according to the present invention.

FIG. 2 is a side view of FIG.

FIG. 3 is an explanatory view of a rope removing method for a belt side surface according to the present invention.

FIG. 4 is a side view of FIG. 3;

[Explanation of symbols]

 1 Belt Traveling Part 2 Belt Positioning Roll 3 Rope Detection Sensor 4 Grinding Unit 6 Drive Pulley 7 Driven Pulley 10 Worked Belt 19 Presser Roll 20 Fixed Roll 22 Support Plate 23 Wheel Housing 24 Grinding Wheel 25 Cutting Machine 27 Left and Right Moving Cylinder

Claims (10)

[Claims] 1. A method for removing a rope exposed on a belt side surface of a processed belt by grinding, in which a processed belt suspended between a drive pulley and a driven pulley is made to travel by applying tension to the processed belt. At least one grinding wheel that can contact only the area of the rope is fixed in the belt width direction by arranging the engaging rolls to fix the position of the belt and only when the rope is exposed on the side of the belt near this position. And removing the exposed rope by rotating the wheel, and grinding the exposed rope. 2. The rope removing method for a belt side surface according to claim 1, wherein at least one of the drive pulley and the driven pulley has a flange on both sides or one side. 3. The rope removing method for a belt side surface according to claim 1, wherein the processed belt is clamped by a press roll and a fixed roll which are engaged with the back surface and the abdominal surface of the belt, respectively. 4. The rope removing method for a belt side surface according to claim 1, wherein the processed belt is a toothed belt having an aramid fiber rope as a core wire. 5. An apparatus for removing a rope exposed on a belt side surface of a belt to be processed by grinding, a belt running section for hanging the belt on a driving pulley and a driven pulley and running the belt under tension. A belt positioning roll that engages with the running belt, a rope detection sensor that is arranged opposite to the belt side surface and that detects the presence or absence of a rope that is exposed on the belt side surface, and the output signal of the sensor moves in the belt width direction. A rope removing device for a side surface of a belt, comprising a grinding unit having a rotatable grinding wheel that abuts only the rope that is moved and exposed to grind it. 6. The grinding unit includes a support plate that moves in the width direction and the thickness direction of the processed belt, a wheel housing fixed to the support plate, and a rotatable grinding wheel provided in the wheel housing. Item 5. The rope removing device on the side surface of the belt according to item 5. 7. The belt side rope removing device according to claim 5, wherein at least one of the drive pulley and the driven pulley has a flange on both sides or one side. 8. The rope removing device for a belt side surface according to claim 7, wherein a gap between flanges provided on both sides of at least one of the driving pulley and the driven pulley is larger than a width of the belt to be processed. 9. The rope removing device for a belt side surface according to claim 5, wherein the belt positioning roll is composed of a pressing roll and a fixed roll which are respectively engaged with the back surface and the abdominal surface of the belt. 10. The rope removing device for a belt side surface according to claim 9, wherein at least one of the press roll and the fixed roll has a flange on both sides thereof with a gap corresponding to the width of the belt to be processed.