JPH02293420A - Method for operating cart - Google Patents

Abstract

PURPOSE:To prevent deterioration in operating efficiency of a cart as much as possible by dividing the whole running section for enabling reciprocative running into plural running sections and running the cart only in operable running sections except inoperable running sections. CONSTITUTION:A cart 4 and a feeder 5 are reciprocated and run along rails 3 and 3 and the running section is divided into plural sections, such as sections (A), (B) and (C). If the running in part of the running sections cannot be carried out by maintenance, etc., of a spinning machine (M), the cart is run in only operable running sections.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method of operating a bogie that reciprocates on rails. (Conventional technology and its problems) Conventionally, carts that run on a fixed track have often been used for automation and labor saving in various factories. For example, in a spinning factory where many spinning machines are installed, etc. In order to prevent yarn breakage due to fluff and improve the work environment, dust collectors move along rails installed above these many spinning machines, blow air onto the spinning machines, and suck up fluff on the floor. This dust collector detects the position at both ends of the rail, and uses the detection signal to reverse the running motor, allowing the machine to repeatedly move back and forth on the rail. However, in the past, if a part of the spinning machine stopped due to lifting work, etc., the dust collector could not run over the spinning machine, so the dust collector had to stop running. As a result, there was a problem in that the operating efficiency of the dust collector was poor and cleaning could not be performed sufficiently.In view of the above-mentioned problems, the present invention has been developed to solve the problem that part of the running section is closed due to stopping of the spinning machine, etc. Even if it becomes impossible,
The purpose of this invention is to provide a method of driving a truck that prevents a decrease in the operating efficiency of the truck as much as possible without stopping the truck. [Means for Solving the Problems] In order to solve the above-mentioned problems, the invention of claim 1 provides a method for operating a bogie that runs reciprocatingly on a rail, wherein the entire traveling section in which the bogie can travel back and forth during normal operation of the bogie is provided. The vehicle is divided into a plurality of driving sections, and when a driving section becomes undriveable among the driving sections, the vehicle is driven only in the driving section excluding the driving section that is not drivable. Configure.

The invention according to claim 2 divides the entire traveling section in which the bogie can travel back and forth during normal operation into a plurality of traveling sections, and a position detection sensor for detecting the position of the bogie is provided near the boundary of each of the traveling sections. and an intermediate reversing unit for reversing the traveling direction of the bogie, and when a traveling section of the traveling section becomes unoperable,
When the position detection sensor detects that the bogie is not in a non-driveable travel zone, the intermediate reversing unit is activated to run only in the driveable travel zone excluding the non-driveable travel zone. It is constructed as a feature. The invention according to claim 3 is characterized in that, in addition to the structure according to claim 1 or 2, an intermediate reversing duct is provided at approximately the center of each of the traveling sections to prevent the cable feeding the trolley from falling off. Configure as.

[For production]

During normal operation, the bogie travels the entire travel section. If a part of the running section becomes impossible to drive due to an abnormality, the position of the bogie at that time is detected by the position detection sensor, and after it is confirmed that the bogie has left the running section where it is impossible to drive. , the intermediate reversing unit is activated, and as a result, the bogie travels only in the drivable travel zone. The intermediate reversing duct accommodates the folded end of the cable when the bogie is operating in a part of the traveling section.
Prevents the cable from falling off due to overlapping folded ends. [Examples] Examples of the present invention will be described below with reference to the drawings. FIG. 1 is a front view of a dust collector 1 according to the traveling method of the present invention. The dust collector 1 includes a rail 3 with a total length of approximately 90 m installed above a large number of spinning machines M installed in a spinning factory, a dust collector 4 that travels back and forth along the rail 3, and a power supply device 5 for supplying power to the dust collector 4. Consisting of

While running along the rail 3, the dust collector 4 cleans the spinning machine M with air blown out from a number of nozzles provided in the blow duct 11, and removes fluff and other dust from the tip of the suction duct 12 on the floor F. Inhale and clean. During this time, the dust collector 4 receives an electric signal and electric power from the power supply device 5, and drives the blower built into the dust collector 4 and the driving motor 17 (see FIG. 3). The travel section of the dust collector 4 is divided into three sections, A section, B section, and C section, as shown in Fig. 1, and the dust collector 4 can run in all these sections. If part of the run is not possible due to maintenance of spinning machine M, for example, only eight sections or only section B may be run. A distribution box l3 is attached to the dust collector 4, and the dust collector 4 collects the dust inside and outside of the distribution box 13. ! A position sensing device l4 is provided to switch and reverse the running direction of the a4 (see Figure 2). Further, a distribution member 33 (see FIG. 4), which will be described later, is attached to the distribution box 13. A cable guide 2l for fixing one end of a cable 32, which will be described later, is provided in the center of the rail 3, and a dust collector 4 is installed in the center of both ends of the rail 3 and the cable guide 21 only in section A. Alternatively, an intermediate reversing duct 22, 22 is provided to prevent the cable 32 from falling off when traveling only in section B. Stoppers 70 and 70 for reversing the running direction of the dust collector 4 are provided at both ends of the rail 3. In addition, in order to make the rail 3 travel only in section A or section B, position sensors 23 and 24 for detecting the position of the dust collector 4, and position sensors 23 and 24 for detecting the position of the dust collector 4, and the position detecting device 14 mentioned above are brought into contact with the dust collector 4. Intermediate reversing units 25 and 26 are provided for switching the running direction of the motor. Next, place! The detection device l4 and the intermediate reversal unit 25 will be explained. Figure 2 shows the position detection device l4 and the intermediate reversing unit 25.
FIG. 3 is a cross-sectional side view of the position detection device l4 and the intermediate reversing unit 25 of FIG. The position detection device l4 includes a rod 81 that is movable in the axial direction in contact with the stopper 70.71, bushes 82, 82 that are provided at both ends of the rod 8l and that support the rod 81 so as to be slidable in the axial direction, and each bushing. A microswitch 84 is installed near the top of the rod 81, and a roller 86 is provided at the tip of the lever 85 of the microswitch 84. It consists of a dog 87 that comes into contact with the contact point to actuate a lever 85 and switch the contact on and off. An O-ring or a dust wiper is used as the packing 83, and its elastic force moderately tightens the rod 81, preventing the rod 8l from being inadvertently damaged by vibration or impact.
In addition to preventing the rod from moving, the axial movement of the rod 81 cleans dust adhering to its surface. The microswitch 84 has a C contact that can be switched by moving the lever 85 in the vertical direction in FIG. Switch the rotation direction of the motor 17 between forward and reverse. The dog 87 has an inclined surface part 88 and a cylindrical surface part 89, and when the dog 87 (rod 81) moves to the right (direction of arrow M1) in FIG. ), the roller 86 climbs over the slope part 88 and rides on the cylindrical surface part 89, and the lever 85 moves upward. Conversely, when the dog 87 moves to the left (when it reaches the position indicated by the chain line in the figure), the roller 86 separates from the dog 87 and becomes free, and the lever 85 returns downward. The intermediate reversing unit 25 rotatably directs a base plate 72 attached to a bracket 39 attached to the rail 3, a solenoid 73 having a plunger 73a, a cover 74, the above-mentioned stopper 71, and the stopper 7l. At the same time, the hinge 75 having a coil spring biasing in the clockwise rotation direction (arrow M5 direction) in FIG. 2 and the stopper 7l move in the counterclockwise rotation direction from the vertical position (the position shown by the solid line in FIG. 2). It consists of a regulating member 76 that regulates the Although not shown in the drawings, cushioning rubber plates are attached to the upper end of the stopper 71 at the position where the rod 8l abuts, and at the tip of the regulating member 76 at the position where the stopper 71 abuts. ．． In addition, 4a is a frame of the dust collector 4, l5 is a main roller, and 16 is a guide roller.The position detection sensor 23 is a sensor that detects a magnetic material and outputs a signal, and the guide roller 16 of the dust collector 4
Detect the bottom edge of . The position detection sensor 23 is provided at a position to the right of the intermediate reversing unit 25, that is, closer to the center of the A section, and detects when the dust collector 4 is approaching the left end of the A section when traveling to the left. , and when the dust collector 4 travels to the right, it is detected that it has entered the A section.

Next, the functions of the position detection device l4 and the intermediate reversing unit 25 will be explained. When the dust collector 4 can travel the entire area shown in FIG.
The solenoid 73 is off, the plunger 73a is contracted to the position indicated by the chain line, and the stopper 7l is retracted to the position indicated by the chain line. Therefore, in this case, the rond 8l is the stopper 7l.
The running direction of the dust collector 4 is not reversed by the intermediate reversing unit 25. When section C shown in FIG. 1 becomes untravelable, a signal to that effect is output from the control device of spinning machine M. Then, the position detection sensor 23 detects that the dust collector 4 has left the C section and the B section and entered the A section, or has approached the left end of the A section.
When detected, the solenoid 73 is turned on, the plunger 73a extends, and its tip pushes the stopper 71 to raise it to the vertical position shown by the solid line. As a result, when the dust collector 4 subsequently travels to the left (in the direction of arrow M2) and reaches the left end of the eight sections, the rod 81 comes into contact with the stopper 71.

Then, the rod 8l moves and the micro swing
4 is switched, the motor 17 is reversed, the running direction of the dust collector 4 is reversed, and the dust collector 4 starts running to the right (in the direction of arrow M1). At the right end of section A, the rod 8l is moved in the opposite direction by the above-mentioned stopper 70, the motor 17 is reversed in the same manner as described above, and the dust collector 4 starts running to the left. In this way, the dust collector 4 travels back and forth only in eight sections,
Cleaning operation of spinning IM is performed only in section A. This state is maintained as long as section C is not drivable, and C
When the section becomes traversable, the control is released when a signal to that effect is output from the control device of the spinning machine M. The position detection sensor 24 and the intermediate reversal unit 26 also include
It has the same configuration as the position detection sensor 23 and the intermediate reversing unit 25 described above, and operates in the same manner as described above when the eight sections become impossible to travel, so that the dust collector 4 can reciprocate only in the C section. , the spinning machine M is cleaned only in section C. However, the stopper of the intermediate reversing unit 26 is attached so as to be rotatable in the opposite direction to the stopper 7l of the intermediate reversing unit 25.

Both solenoids of these intermediate reversing units 25 and 26 are connected in parallel to simplify wiring, and both are turned on and off at the same time. Next, the power supply device 5 will be explained. 4 is a front view of the power supply device i11f5, and FIG. 5 is a sectional plan view of the power supply device 5. With particular reference to these figures and FIG.
A duct} 31 provided along the rail 3, a cable 32 housed in the duct 31, a distribution member 33 for distributing the cable 32 to different positions within the duct 31 depending on the forward or backward movement, etc. It is configured. The duct 31 is made of extruded aluminum alloy and has a U-shaped cross section with an open top and side walls 31a, 31a and a bottom 3lb. A central wall portion 31c is provided at the center of the bottom portion 3lb to divide the bottom portion 3lb into two, and the width of each divided bottom portion 3lb is slightly wider than the width of the cable 32. As a result, first accommodating portions 35a for accommodating cables 32, respectively.
and a second accommodating portion 35b are formed. The ducts 3l are connected in a continuous manner with appropriate lengths, and are supported by plages 71 and 39 attached to the rail 3 with appropriate slots. The cable 32 is a flexible flat cable whose jacket is made of synthetic rubber or the like and has an appropriate number of cores (for example, 4 cores), and one end of which is connected to a cable (described later) provided at the center of the rail 3. It is fixed to the engaging part 21d of the guide 2l, and the other end is fixed to the engaging part 33d of the distribution member 33. The cable 32 has a length that allows the dust collector 4 to travel the entire length. The distribution member 33 is made of synthetic resin, for example, and has two curved
Approximately triangular side wall portions 33a, 33a having two hypotenuses;
and curved guide wall portions 33b, 33b provided along the oblique sides of both side wall portions 33a, and as a whole exhibits a horn shape opening downward. An outlet 33c for inserting the cable 32 is provided between the upper ends of both guide wall parts 33b, and a retaining part 33d for fixing the cable 32 is provided at the upper end of one of the guide wall parts 33b. As described above, the cable 32 is attached to the binder 3 to the retaining portion 33d.
It is fixed by 7. In particular, as shown well in FIG. 5, the distribution member 33 has a first guide end 38a, which is the lower end of one guide wall 33b, opening directly above the first accommodating part 35a of the duct 3l. , has an inclination angle with respect to the rail 3 in plan view so that the second guide end 38b, which is the lower end of the other guide wall 33b, opens directly above the second accommodating part 35b of the duct l-31. It is attached to the power distribution box l3 of the dust collector 4. Therefore, when the dust collector 4 moves to the right in FIG. 5 (in the direction of arrow M1), the cable 32
while being pulled in the same direction by the distribution member 33
It is guided by the first guide end 38a of the duct 3l and is accommodated in the first accommodating part 35a of the duct 3l. Conversely, when the dust collector 4 moves to the left in FIG. It will be accommodated. In other words, each time the dust collector 4 reverses its running direction, the cable 32 is folded back in an arc shape at that point, and is distributed by the distribution member 33 so that the cables 32 are housed at different positions in the duct 31. It is. Next, the intermediate reversal duct 22 will be explained. FIGS. 8(a) to 8(c) are diagrams showing the state of the cable 32 when the intermediate reversing duct 22 is not provided. When the dust collector 4 moves to the left in the figure, a folded end 32c of the cable 32 is formed on the right side of the dust collector 4, as shown in FIG. 8(a). When the dust collector 4 moves to the right from this state, a new folded end 32d separate from the above-mentioned folded end 32C is generated on the left side of the dust collector 4, but when the dust collector 4 reaches near the right end The folded end 32d passes above the folded end 32c. That is, at this time, the two folded ends 32c and d overlap as shown in FIG. 8(b), and then, as shown in FIG.
As shown in c), the folded ends C and d become one and become larger, which may cause the cable 32 to protrude from the duct 3l and fall off. The intermediate reversing duct 22 is intended to prevent such a situation. FIG. 6 is a front view of the intermediate reversing duct 22, and FIG. 7 is a plan view of the intermediate reversing duct 22. Intermediate reversal duct 2
2 is made of transparent synthetic resin, and includes a peripheral wall portion 22a having approximately the same width as the width of the duct 3l, and side wall portions 22b, 22b attached to the edges of the peripheral wall portion 22a. The upper portion 22e of the side wall portion 22b is
The dimensions are the same as the height (depth) of the duct, and at both ends thereof, retention reinforcing members 66, 66, which are secured to the ends of the duct 31 from the outside, are provided. The side wall portion 22b and the side wall portion 31a of the duct 3l are continuous with each other on the same plane. Further, below both ends of the peripheral wall portion 22a, sandwiching members 67, 67 for sandwiching the bottom portion 3lb of the duct 31 are provided, so that the peripheral wall portion 22a and the bottom portion 3lb of the duct 31 are continuous with each other. ing. The part surrounded by the peripheral wall part 22a and the side wall part 22b forms a cable reservoir part 6l that stores the arc-shaped folded end part 32c that is generated when the cable 32 is folded back, and the upper half of the peripheral wall part 22a is Arc-shaped guide portions 62, 62 are formed to guide the cable 32 smoothly. Incidentally, a suitable hole is provided at the bottom of the peripheral wall portion 22a for dropping dirt and the like. Since the intermediate reversing duct 22 is provided at the intermediate position of each of the eight sections and the B section, when the dust collector 4 travels within each section, the position of the folded end 32c when the dust collector 4 is reversed is at the intermediate position. When the reversing duct 22 is at a certain position, the reversing end 32c is at the cable storage part 61.
It will be housed in. That is, when the dust collector 4 is traveling only in eight sections, for example, when the dust collector 4i14 travels to the left and reaches the left end, the folded end 32c reaches the position of the intermediate reversing duct 22, As shown in FIGS. 6 and 7, it is housed in a cable storage section 61. Then, when the dust collector 4 travels to the right and reaches the vicinity of the right end of section A, the folded end 32d of the cable 32 as it travels to the right is connected to the cable reservoir 61.
It passes over the folded end portion 32c housed in the folded end portion 32c. At this time, since the height of the folded end 32d does not become high, it does not protrude significantly from the duct 31. Therefore, stable power supply can be performed without the cable 32 falling off. In addition, since the side wall portion 22b is transparent, the cable storage portion 6
The condition of the cable 32 inside the device can be easily checked. Therefore, the condition of the position of the running end of each section can be checked easily through daily visual inspection.
The dust collector 1 can be operated safely by preventing sudden troubles. According to the above-mentioned embodiment, the dust collector 4 can run only in section A or section B and perform cleaning operation only in each section, so even if the other section becomes impossible to run, the dust collector 4 can continue to operate. It is possible to clean areas where the vehicle can run without stopping the vehicle. therefore,
Cleaning can be performed efficiently without reducing the operating efficiency of the dust collector 4. Furthermore, even if some sections are not impossible to drive, for example, it is possible to intentionally run only a particularly heavily soiled section and intensively clean that section. Further, when the dust collector 4 is running only in each section, the intermediate reversing duct 22 prevents the cable 32 from falling off due to the overlap of the folded ends 32c and d, allowing stable running. According to the embodiment described above, each time the dust collector 4 reverses its running direction, the cables 32 are housed in different positions in the duct 31, so that the cables 32 do not overlap vertically. Therefore, the lower part of the cable will not be dragged by the upper part and cause an abnormal phenomenon, and stable power supply by the cable 32 will be performed. Furthermore, since the cables 32 do not overlap one above the other, there is less frictional resistance when moving the cables 32, and therefore less tension is applied to the cables 32 and less heat is generated in the jacket, and the cables 32 are less likely to be damaged and have a longer life. Further, the traveling driving force of the dust collector 4 required to pull the cable 32 is small. In the above embodiment, the intermediate reversing unit 25 was configured to be automatically activated by the solenoid 73, but instead of or in addition to this, it can be manually activated and deactivated by pulling a string. It may be configured so that the operation can be switched. The running sections of dust collector 4 are 8 sections and 2 sections B.
Although it is divided into two sections, it may be divided into more sections.
It is also possible to make the divided travel sections overlap each other. In the above embodiment, the duct 31 has been described as having two accommodating parts, the first accommodating part 35a and the second accommodating part 35b, but the duct 31 may have only one accommodating part. In the above embodiment, the dust collector 4, the position detection device 14,
The shape, cutting method, structure, material, etc. of the intermediate reversing duct 22, intermediate reversing unit 25, cable 32, and other members can be made into various shapes other than those described above. The present invention can be applied to various methods of running a truck other than the dust collector 4 described above.

〔Effect of the invention〕

According to the present invention, even if part of the traveling section becomes untravelable due to stopping of the spinning machine, etc., the bogie can be operated in the movable section without stopping the bogie. Decrease in efficiency can be prevented as much as possible. Moreover, especially according to the invention of claim 3, when traveling only in a part of the traveling section, it is possible to prevent the cable from falling off and perform stable operation.

[Brief explanation of drawings]

FIG. 1 is a front view of a dust collector according to the traveling method of the present invention, FIG. 2 is a front view of a position detection device and an intermediate reversing unit,
Figure 3 is a cross-sectional side view of the position detection device and intermediate reversing unit shown in Figure 2, Figure 4 is a front view of the power supply device, Figure 5 is a cross-sectional plan view of the power supply device, and Figure 6 is the intermediate reversing duct. FIG. 7 is a plan view of the intermediate reversing duct, and FIGS. 8(a) to (alternative) are diagrams showing the state of the cable when the intermediate reversing duct is not provided. 3...Rail, 4...Dust collector (truck), 22...
Duct for intermediate reversal, 23.24... Position detection sensor 25.26... Unit for intermediate reversal, 32... Cable.

Claims (3)

[Claims] (1) A method of operating a bogie that travels back and forth on rails, in which the entire traveling section in which the bogie can travel back and forth during normal operation is divided into multiple traveling sections, and within the said traveling section, it is impossible to operate. A method for driving a bogie, characterized in that when a running section occurs, the bogie is driven only in an drivable running section excluding an undriveable running section. (2) A method of operating a bogie that travels back and forth on rails, wherein the entire traveling section in which the bogie can travel back and forth during normal operation is divided into a plurality of traveling sections, and the bogie is placed near the boundary of each of the traveling sections. A position detection sensor for detecting the position of the truck and an intermediate reversing unit for reversing the traveling direction of the bogie are provided, and when a traveling section of the traveling section becomes undriveable, the position detecting sensor detects the position of the trolley. The intermediate reversing unit is activated when a sensor detects that the bogie is not within a non-driveable travel zone, and the bogie is driven only in a driveable travel zone excluding the non-driveable travel zone. How to drive a trolley. (3) The method for operating a bogie according to claim 1 or 2, characterized in that an intermediate reversing duct for preventing the cable feeding power to the bogie from falling off is provided at approximately the center of each traveling section. .