JP2003220543A - Driving belt processing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for processing a driving belt by which a series of continuous belt processing time for securing the belt to a belt running portion, polishing, and taking out is substantially shortened and the lateral surface of the belt can be precisely polished. <P>SOLUTION: In the driving belt processing method, a belt processed by placing it at the belt taking in and out position 2 is taken out from the pulleys 31, 32 then an unprocessed belt is set around the pulley 31, 32 at the other belt running portion 30b while polishing the belt set around the pulley 31, 32 at the running portion 30a and running at the belt processing position 3 where the lateral surfaces of the belts are polished, the above one pair of belt running portions 30a, 30b are alternately turned from the belt processing position 3 to the belt taking in and out position 2, and the powder sticking to the belt is removed by blowing out compressed air from the axial center of the movable pulley 32 to the bottom surface of the belt while polishing the above belt. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for processing a transmission belt, and more specifically, it inserts and hangs the transmission belt on at least two pulleys, applies tension to the traveling belt, and then polishes the side surface thereof into a V shape. The present invention relates to a method for processing a power transmission belt, which can reduce the time required for processing and take out the processed belt, and can polish the side surface of the belt with high accuracy.

[0002]

2. Description of the Related Art Generally, a V-belt, which is a transmission belt, is formed into a cylindrical sleeve, which is cut into a trapezoidal shape and vulcanized by a mold, or vulcanized into a sleeve shape, and then the trapezoidal shape. It was manufactured by cutting.
In this case, the manufactured V-belts generally had errors in the length and cross-sectional shape of each belt due to thermal contraction of constituent materials, positional displacement of the core wire, and processing error during cutting. In particular, when the V-belt fits into the pulley groove, the position of the belt fluctuates in the radical direction with respect to the pulley shaft center due to a partial change in the cross-sectional dimension, which causes vibration and tension of the belt during traveling of the belt. It causes fluctuations and causes vibration of the machine. Therefore, the molded individual belts are classified by the measuring machine into acceptable products having a length within the set range and rejected products not having the length, and thus the rejected products V
The belt was passed by further polishing the side surface of the belt.

As another method, a sleeve in which a rubber layer is vulcanized by reverse molding is placed on a mandrel, and while the mandrel is rotated, the mandrel is ground into a V shape by a grindstone plate, and then is cut into individual V belts by a cutter. A method of separation is disclosed in US Pat. No. 3,818,576, and an apparatus thereof is disclosed in US Pat.

Further, in Patent Document 2, a belt running portion that hangs the belt on a driven pulley that moves along a driving pulley and a guide rod to rotate the belt, and a belt having a rotatable cutting blade that cuts the side surface of the belt. Using a device consisting of a processing part and a push roll that presses the back of the belt being processed,
It is disclosed that a V-belt is formed by running a belt by hanging it on a belt running portion, bringing a push roll into contact with the back surface of the belt, and then rotating a pair of cutting blades.

[0005]

[Patent Document 1] US Patent No. 3711996

[Patent Document 2] Japanese Patent Publication No. 4-2425

[0006]

However, in the conventional method, the V-belt is hung on the belt running portion to run the V-belt by rotating the pair of cutting blades after the push roll is brought into contact with the back surface of the belt. The molded V-belt was taken out from the pulley. Therefore, it takes time to take out the V-belt formed for each belt to be molded from the pulley and to hang it on the belt running portion, and it is strongly desired to rationalize these processes and shorten the molding time. It was rare.

The present invention solves such a problem and greatly shortens a series of continuous belt processing time from attaching the belt to the belt running portion, polishing, and taking it out, and also with high accuracy. An object of the present invention is to provide a method for processing a transmission belt that can polish the side surface of the belt.

[0008]

That is, according to the invention of claim 1 of the present application, in a method for processing a transmission belt, the belt side surface is polished while being stretched while being stretched by at least two pulleys. While polishing the belt run by hanging it on the pulley of the belt running part at the belt processing position where the side is abraded, place the belt hanging on the other belt running part at the belt detaching position Then, the unprocessed belt is installed on the pulley, the pair of belt running parts are alternately swung from the belt processing position to the belt attachment / detachment position, and compressed air is blown during polishing of the belt. One of the methods for processing a transmission belt is to eject powder from the axis of a movable pulley toward the bottom of the belt to remove the powder adhering to the belt. While polishing the belt in Gyobu,
Since the processed belt can be taken out from the other belt running section or the unprocessed belt can be attached to the pulley, the belt take-out time and installation time can be shortened, and the polishing powder adhered to the belt surface during polishing processing can be shortened. The side surface of the belt can be polished with high accuracy by removing the compressed air with the compressed air.

According to a second aspect of the present invention, there is provided a method for processing a transmission belt in which each belt running portion is swung by 90 ° with respect to the rotation axis.

In the invention according to claim 3 of the present application, the belt traveling portion can be hung on the pulley while suppressing the runout of the belt installed on the fixed pulley by the shield plate mounted on the movable pulley side. In the processing method of the transmission belt as described above, even if the belt installed on the fixed side pulley shakes, the shake can be suppressed in a short time by the shield plate, and it can be accurately attached to the two pulleys. .

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION A method for processing a transmission belt according to the present invention will be described below with reference to the accompanying drawings. FIG. 1 is an overall view of a processing apparatus used in a method for processing a transmission belt according to the present invention,
2 is a view of FIG. 1 seen from the direction AA, and FIG.
FIG. 4 is a view seen from the direction B, FIG. 4 is an enlarged plan view of the belt processing unit shown in FIG. 3, FIG. 5 is a front view of a conveyance unit used in the processing method of the present invention, and FIG. 6 is a perspective view of a belt waiting place. Is.

Processing apparatus 1 for power transmission belt used in the present invention
Is a belt installation unit 10 for moving a belt arranged on a belt hanger by a predetermined pitch, a conveyor unit 20 for picking up a belt arranged at a belt standby position and moving it in a multi-axis direction, and a pulley on a fixed side of the belt. And a pair of belt running portions 30a, 3 which are hung on a movable pulley to run.
0b, a pair of belt running parts 30a, 30b, and running part revolving means 60 for alternately reciprocating from the belt attachment / detachment position 2 to the belt processing position 3, and the belt side faces located on both sides of the belt. Belt processing unit 70
It consists of

In the belt installation unit 10, a rod-shaped hanger 11 for installing a plurality of belts 4 is a column (not shown).
It is fixed to. Belt 4 installed on the hanger 11
The group is sent out by a push plate (not shown) by a predetermined pitch (in this case, a length corresponding to the width of one belt) toward the front end, and the most advanced belt 4 is provided on the front end of the hanger 11 for waiting the belt. Sent to location 12. Here, the belt 4 moves from the hanger 11 to the belt housing portion 14 along the inclined surface 13 and stands by.

As shown in FIG. 6, the belt waiting place 12 is provided with a pair of plate-like bodies 16 which are provided with a slanting surface 13, a concave belt accommodating portion 14 and a stopper 15 protruding upward, which are arranged at predetermined intervals. Are arranged in parallel. This plate 16
Is set with a sufficient space for holding the gripping member 23. If the number of the plate-like bodies 16 is one, the contact area of the belt 4 is small and the direction (inclination) of the belt becomes very unstable, so that it is difficult to grip the belt 4 and the gripping member 23 The structure of is also complicated. The belt accommodating portion 14 has a sufficient width for stably installing the belt 4, and the stopper 15 has a concave belt accommodating portion 14 for the belt 4.
It is housed inside to prevent the belt 4 from falling. This height is such that the belt 4 does not drop and there is no particular limitation.

The transport unit 20 comprises a grip portion 21 for sandwiching the belt and a moving means 22 for transporting the grip portion 21 in the multi-axis direction. The grip portion 21 chucks a pair of gripping members 23 facing each other. The belt 4 can be gripped by opening and closing by. Further, the moving means 22 is a drive pulley 3 fixed from a belt waiting place 12 provided at the tip of the hanger 11.
X-direction first cylinder 25 that moves toward the 1 side
An X-direction second cylinder 26 that moves by the operation of the X-direction first cylinder 25, a Z-direction cylinder 27 that moves the knob portion 21 in the vertical direction, and these cylinders 25, 26, 27 in the X-direction. It has a Y-direction cylinder 29 such as a rodless cylinder that moves in a direction orthogonal to each other, and moves the knob portion 21 in three axial directions, that is, a vertical direction, a horizontal direction, and a direction orthogonal thereto.

The X direction first cylinder 25 moves the X direction second cylinder 26, the X direction second cylinder 26 moves the Z direction cylinder 27, and the Y direction cylinder 29 moves the X direction first cylinder 25 and the X direction. The second cylinder 26 and the Z direction cylinder 27 are moved together.

The belt running portion 30 is composed of a fixed drive pulley 31 and a driven pulley 32 which moves along a guide rod 33 and applies a constant tension to the belt 4. The rotation of the drive pulley 31 is applied to a support base 34. It is transmitted from the installed prime mover 35 via a transmission belt 36. Also, the drive pulley 3
1 is equipped with a belt take-out assisting device 37 that allows the belt 4 to be taken out easily, and has a guide plate 38 that turns around the outer circumference of the pulley. That is, as shown in FIGS. 7 and 8, when the belt 4 is attached to the drive pulley 31,
The guide plate 38 is positioned below the drive pulley 31, and when the belt is taken out, the guide plate 38 is rotated 180 ° to lift the belt 4 onto the guide plate 38.

The driven pulley 32 slides the two guide rods 33 in the vertical direction by the operation of the cylinder 39 to apply tension to the belt, and also applies compressed air from the axis of the pulley toward the bottom surface of the attached belt. A powder removing device 42 for ejecting the powder adhering to the belt to remove the powder, and a shield plate 43 for suppressing the vibration of the belt to surely hang it on the driven pulley 32 are also provided, and these move together with the driven pulley 32. To do.

The pair of belt running portions 30a and 30b described above.
Are arranged so as to face each other, and the traveling unit revolving means 60 alternately revolves from the belt processing position 3 to the belt attachment / detachment position 2. That is, the belt 4 can be
During polishing, the processed belt 4 can be taken out or the unprocessed belt 4 can be attached to the pulley on the other belt running portion 30b.

The traveling unit revolving means 60 is composed of the belt traveling unit 3
The support stand 34 on which the 0a and 30b are installed is attached to the belt processing unit 70.
It is connected to the rod 62 of the cylinder 61 fixed to the installation base 71, and the support base 34 is further provided with the rotary shaft 64 inserted into the bearing 63. When the cylinder 61 is operated, the support base 34 is swung 90 ° from the belt processing position 3 to the belt detaching position 2 about the rotary shaft 64 as shown by the swirling line L shown in FIG. That is, the movements of the pair of belt running portions 30a and 30b behave alternately, and while one belt running portion 30a is polishing the belt, the other belt running portion 30b is processed at the belt attachment / detachment position 2. Take out the belt 4 or attach the raw belt 4 to the pulley.

As shown in FIGS. 3 and 4, the belt processing unit 70 is placed on a pair of tables 72 arranged on an installation table 71. A pair of prime movers 73 are shown in the figure (a).
It is arranged on each table 72 that is movable in the direction, and a speed increaser 75, a bearing 79, and a drive shaft 76 are connected in series to the prime mover 73. A polishing member 78 such as a sanding paper is movably mounted between the drive shaft 76 and a driven shaft 77 supported by another bearing 79,
When the side surface of the belt 4 is polished, the belt 4 is moved until it comes into contact with the side surface of the belt 4 for polishing.

The adjustment of the grinding angle on the side surface of the belt is performed by the adjusting prime mover 7.
3 can be carried out by orbiting an arcuate rail laid on the table 72 installation base 71, and the pair of polishing members 78 can move in the arrow direction (a) in the figure and be separated from the belt 4. Or it can be contacted. In addition,
A push roll (not shown) that pushes the back surface of the belt may be provided on the table 72 in order to perform the polishing process of the belt with high accuracy.

The method of processing the transmission belt according to the present invention will be described below. The belt 4 used here is cut into a trapezoidal cross section, and as shown in FIG. 9, a canvas 81 having elasticity on a cylindrical forming drum 80, for example, a crossing angle between warp and weft of 90 ° to 155. Bias canvas having good elasticity is wound around the drum in the circumferential direction, that is, in the belt longitudinal direction by one to several plies, and then the lower rubber layer 82 is laminated. Core wire 83 is spirally wound, an upper rubber layer 85 thinner than the lower rubber layer 82 is further laminated, and the elastic cloth 86 is wound on the surface layer for one to several plies. In addition, short fibers arranged in the belt width direction may be mixed with the upper and lower rubber layers 82 and 85, for example, fibers such as cotton, nylon, and aramid. The laminate thus obtained is vulcanized by a known pressurizing and heating means to be a vulcanized sleeve, and the vulcanized sleeve is cut by a cutter into a belt unit having a trapezoidal cross section without using a mandrel. The surface is polished by a power transmission belt processing device.

As shown in FIG. 5, a plurality of belts 4 are hung on the hanger 11 of the belt installation portion 10 and are moved along the longitudinal direction by the operation of the push plate.
The group of belts 4 installed on the hanger 11 is sent out by a predetermined pitch, and the most advanced belt 4 is sent to the belt waiting place 12, where it stands by.

The belt 4 which stands by by lowering the knob 21 of the conveyor 20 by the operation of the Z-direction cylinder 27.
When the gripping member 23 is gripped by the pair of gripping members 23, the Z-direction cylinder 27 is actuated to raise the gripping member 23, and at this position, the gripping member 23 is projected forward by the X-direction first cylinder 25 to move the belt 4 from the belt waiting place 12. .

As shown in FIG. 5, in this state, the gripping member 23 approaches the fixed drive pulley 31 of the one belt running portion 30a standing by at the belt attaching / detaching position 3 by the operation of the Y-direction cylinder 29, The belt 4 is dropped and attached to the drive pulley 31, but the belt 4 dropped at this time
Of vibration is attenuated by the shielding plate 43. The driven pulley 32
The cylinder 39 operates to descend along the guide rod 33 and apply tension to the belt.

At this time, the other belt running portion 30b is undergoing polishing processing, and when the processing is completed, the belt running portion 30b turns 90 ° and moves to the belt attaching / detaching position 2. On the other hand, the unprocessed belt 4 described above
The belt running unit 30a mounted with turns 90 degrees and moves to the belt processing position 3. After that, the pair of prime movers 73 of the belt processing unit 70 move close to each other to rotate the polishing member 78.
Is brought into contact with the running unprocessed belt 4 and polishing is performed. At this time, the driven pulley 3 is attached to the bottom surface of the belt during polishing.
Compressed air is sent from the shaft core of 2 to remove the powder adhering to the surface.

In the belt running unit 30 equipped with the processed belt which has been moved to the belt attaching / detaching position 2 during the above polishing process, the driven pulley 32 is raised to release the belt tension, and then the guide of the belt take-out assisting device 37 is guided. The plate 38 is swiveled 180 ° from the lower side of the pulley to the upper position and the belt is lifted onto the guide plate 38. Gripping member 2 of the transport section
The belt 4 is picked up by 3 and taken out from the drive pulley 31 and dropped into a housing portion (not shown).

The polished belt 4 has an uneven side surface or a surface state in which short fibers are projected, and running the belt has an effect of reducing noise.

[0030]

As described above, in the inventions according to claims 1 and 2 of the present application, the belt run by being hung on the pulley of the belt running portion at the belt processing position for polishing the belt side surface is polished. While the belt is hanging, the belt stretched on the other belt running part is placed at the belt attachment / detachment position, the processed belt is taken out from the pulley, and then the unprocessed belt is installed on the pulley.
Alternately swiveling the pair of belt running portions from a belt processing position to a belt detaching position, and during polishing of the belt, ejects compressed air from the axial center of the movable pulley toward the bottom surface of the belt, There is a method for processing a transmission belt that removes the powder adhering to the belt. While the belt is being abraded by one of the belt running parts, the processed belt can be taken out or unprocessed in the other belt running part. Since the belt can be attached to the pulley, the belt take-out time and attachment time can be shortened.Besides, the polishing powder adhering to the belt surface is removed by compressed air that has been sprayed during the polishing process so that the side surface of the belt can be polished accurately. There is an effect that can be.

In the invention according to claim 3 of the present application, the belt traveling portion can be hung on the pulley by suppressing the runout of the belt installed on the fixed pulley by the shield plate mounted on the movable pulley side. In the processing method of the transmission belt as described above, even if the belt installed on the fixed side pulley shakes, the shake can be suppressed in a short time by the shield plate, and it can be accurately attached to the two pulleys. effective.

[Brief description of drawings]

FIG. 1 is an overall view of a processing apparatus used in a method for processing a transmission belt according to the present invention.

FIG. 2 is a view of FIG. 1 viewed from the AA direction.

FIG. 3 is a view of FIG. 2 viewed from a BB direction.

FIG. 4 is an enlarged plan view of the belt processing unit shown in FIG.

FIG. 5 is a front view of a conveyor used in the method for processing a transmission belt according to the present invention.

FIG. 6 is a perspective view of a belt standby place.

FIG. 7 is a diagram showing a relationship between the guide plate and the drive pulley when the belt is attached to the drive pulley.

FIG. 8 is a diagram showing a relationship between a guide plate and a drive pulley when a belt is taken out.

FIG. 9 is a partial cross-sectional view showing a manufacturing example of a belt alone.

[Explanation of symbols]

1 Transmission belt processing equipment 2 Belt removal position 3 Belt processing position 4 belts 10 Belt setting section 20 Transport section 30a Belt running section 30b Belt running section 31 Drive pulley 32 Driven pulley 42 powder remover 43 Shield 60 Traveling part turning means 70 Belt processing section

Claims (3)

[Claims] 1. A method for processing a transmission belt, wherein a belt is hung on at least two pulleys and run while the side surface of the belt is abraded, and the belt is hung on a pulley of a belt running portion at a belt processing position where a belt side surface is abraded. While polishing the belt that has been run, the belt stretched on the other belt running part is placed at the belt attachment / detachment position and the processed belt is taken out from the pulley.
Next, an unprocessed belt is installed on the pulley, and the pair of belt running parts are alternately rotated from the belt processing position to the belt attachment / detachment position, and the axial center of the pulley that can move compressed air during the polishing process of the belt. The method for processing a transmission belt is characterized in that the powder is ejected from the belt toward the bottom surface of the belt to remove the powder adhering to the belt. 2. Each belt running portion is 90 ° with respect to the rotation axis.
The method for processing a transmission belt according to claim 1, wherein the transmission belt is rotated. 3. The method of processing a transmission belt according to claim 1, wherein a shield plate mounted on the movable pulley side suppresses the vibration of the belt installed on the fixed pulley so that the belt can be hung on the pulley.