JPH0920418A - Car-to-car-space adjuster and car space controller - Google Patents

Abstract

PROBLEM TO BE SOLVED: To adjust a car-to-car space in a rope way, etc., of an automatically circulating type an objective space in a single operation regardless of a slided direction of cars. SOLUTION: Between arrays of rollers 1 and 2, an array of controlling rollers 5 having the same length as an objective car-to-car space L is disposed at the front and the rear end portions of the array of controlling rollers 5. While, pulse generators 10 and 11 are provided to the array of propelling rollers 2 and the one of the controlling rollers 5 respectively so as to generate pulse proportional to the speed of the respective cars, so that based on signals from the respective car detectors 8 and 9, and the respective pulse generators 10 and 11, the car spacing controller provides an order about speed to a motor 6 for driving the array of controlling rollers 5. Thereby, the speed of the array of controlling rollers 5 is changed, so that the car-to-car space is adjusted to the objective space L, while the car 4 comes onto and leaves from the array of controlling rollers 5.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to an automatic circulation cableway and
TECHNICAL FIELD The present invention relates to a technique for adjusting a distance between carrying devices to a target carrying device distance in a roller conveyor device, a belt conveyor device, or the like.

[0002]

2. Description of the Related Art For example, in the case of adjusting the carry unit interval in an automatic circulation cableway, conventionally, only when the carry unit interval is wider than the target carry unit interval, the subsequent carry unit is fast-forwarded to adjust the carry unit interval.

In this way, even with the method in which only the portion having a wide carrier interval is adjusted and the narrow portion is not adjusted, the entire interval is eventually adjusted in the case of the circulation type conveying device. However, adjustment may take time.

That is, in the automatic circulation type cableway, when a certain transporter is displaced rearward from the proper position with respect to the target transporter spacing and the spacing between the transporter and the preceding transporter becomes wider, it is displaced rearward. By fast-forwarding the carrier, the adjustment of the carrier interval is completed by one operation, and the next carrier is not affected.

On the other hand, when a certain one carrier is displaced forward from the proper position and the distance between it and the next carrier is widened, the next carrier of the displaced carrier is fast forwarded to the interval. Therefore, it is necessary to adjust the interval for the next carrier as well, and this adjustment operation continues until the carrier completes one cycle. This applies not only to the automatic circulation type cableway, but also to the adjustment of the distance between the conveyed objects in the roller conveyor device or the belt conveyor device. It should be noted that the transported objects in these devices are also referred to as transporters.

[0006]

SUMMARY OF THE INVENTION An object of the present invention is to provide a carrier interval adjusting device which can adjust the interval by one operation regardless of the direction of displacement of the carrier, and a carrier interval controller useful for the same. To provide.

[0007]

In order to solve the above-mentioned problems, a carrying device interval adjusting device according to the present invention is connected to a carrying device moving device for pushing, and a carrying device for adjusting, which has the same length as a target carrying device interval and whose carrying speed is variable, is moved. Means, a first carrier detector fixed to the front end of the adjusting carrier moving means, a second carrier detector fixed to the rear end of the adjusting carrier moving means, and the adjusting carrier moving means A motor for adjusting the carrier interval, a pulse generator for pushing that generates a pulse that is proportional to the moving speed of the carrying device for moving the carrying device, and a pulse that is proportional to the carrying speed of the carrying device for moving the adjusting device. Adjusting pulse generator, and a carrier interval controller for sending a speed command to a carrier interval adjusting motor by signals from the first and second carrier detectors and signals from the pushing and adjusting pulse generators. It is made of a.

Further, the carrier interval controller according to the present invention is a carrier interval controller used in the carrier interval adjusting device of the present invention, wherein the carrier moving means for adjustment is moved by a signal from each of the first and second carrier detectors. A carrier number calculating means for calculating the number of the above-mentioned carry devices, and a feed amount counter for pushing for measuring the pulses generated by the push pulse generator until the output value of the carry number calculating means changes from 0 to 1. An adjustment feed amount counter for measuring the pulses emitted by the adjustment pulse generator and an output pulse from the push pulse generator until the output value of the number-of-carrying-units calculation means changes from two to one. From the transporting device transport speed meter for calculating the transporting device transport speed of the transporting device moving means, the transport device number calculating means, the sending amount counter for pushing, the adjusting feed amount counter, and the transporting device transport speed meter for pushing It is made of an adjusting motor speed calculating means for calculating a speed command to the carriage spacing adjustment motor by an output value.

<Operation> The number of carriers on the adjustment carrier moving means can be known from the signals output from the first and second carrier detectors. Assuming that the number of the carrying units is X, the length of the adjusting carrying unit moving means is the same as the target carrying unit interval (this is L). Therefore, the carrying unit interval is the target carrying unit interval L.
If it is a street, X = 1, but if the carrier interval is wider, X = 0, and if it is narrower, X = 2. That is, if the number X of carriers on the adjustment carrier moving means is known, the direction in which the position of the carrier is displaced can be known. Also, the target carrier interval L
The amount of deviation with respect to is X = 0 when the carrier interval is wider than L.
Is the feed amount of the pushing carrying device moving means (this is a delay amount and is N ₁ ), and the feeding amount of the adjusting carrying device moving means while X = 2 when the carrying device interval is narrower than L. (This is the amount of advance and is N _2. ) These feed amount N
₁ and N ₂ can be known from the pulses output from the pulse generators for pushing and adjusting. In this way, if the displacement direction and displacement amount of the carrier are known, the carrier transport speed of the adjustment carrier moving means (the carrier transfer speed of the adjustment carrier moving means becomes zero until the carrier enters the adjusting carrier moving means and then exits. This is V)
Can be adjusted, and the carrier transport speed V is N ₁ or N
₂ and the carrying speed of the carrying device for pushing (which is V ₀
And)). The latter carrier transport speed V ₀ can be known from the pulse output from the pushing pulse generator. Therefore, the carrier interval controller obtains the carrier carrying speed V required for the adjusting carrier moving means on the basis of the signals from the first and second carrier detectors and the signals from the pushing and adjusting pulse generators. By sending the speed command to the distance adjusting motor, the carrier interval can be automatically adjusted to the target carrier interval L irrespective of the displacement direction of the carrier.

In the carry unit interval controller, the carry unit number calculating means calculates the carry unit number X on the adjusting carry unit moving means from the signals of the first and second carry detectors, and the feed amount counter for pushing is used while X = 0. The pulse from the pushing pulse generator is measured to obtain the delay amount N _{1 of the} carrying device, and while X = 2, the pulse from the adjusting pulse generator is measured by the adjusting feed amount counter to measure the lead amount N ₂ of the carrying device. Ask for. Further, the carrier transport speed V ₀ of the carrier transport moving means for transport is determined from the pulse from the pulse generator for transport.
Is calculated by the transport speed meter for the transporter for pushing. Then, from these respective values X, N ₁ , N ₂ , and V ₀ , the adjusting motor speed calculating means calculates the carrying speed V required for the adjusting carrying means, and sends the speed command to the carrying distance adjusting motor. .

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, an example of an embodiment of a carrier gap adjusting device and a carrier gap controller according to the present invention will be described.
This will be described with reference to the drawings.

FIG. 1 shows an example of the structure of a mechanical device portion of the carrier gap adjusting device. The carrier gap adjusting device shown in the drawing is useful for an automatic circulation cableway, for example, a ski lift or the like, and the adjusting carrier moving means 5 is provided between the two pushing carrier moving means 1 and 2.
Are connected in series, and an arrow 31
As described above, the carrier 4 is moved by being pushed or pulled.

Each of the transporting means 1 and 2 for the transporting means for pushing is composed of a plurality of pushing rollers connected to each other by the V-belt 3, and the rollers are synchronized with each other by the driving of a motor (not shown). 4 (For example, a suspended seat for ski passengers) is pushed. Hereinafter, each of the pusher carrier moving means 1 and 2 will be referred to as a pusher roller row.

The adjustment carrying device moving means 5 comprises a plurality of adjusting rollers connected by a V-belt 7, and is driven at a variable speed by a carrying device interval adjusting motor 6 so that each roller rotates at a variable speed. The motor 6 is controlled as described later to adjust the carrier moving speed of the adjusting carrier moving means 5 to adjust the carrier interval. Hereinafter, the adjustment carrier moving means 5
Is called an adjusting roller row.

The total length of the adjusting roller array 5 is the target carrier interval L.
The first carrier detector 8 is fixedly provided at the position corresponding to the front end thereof, and the second carrier detector 9 is fixedly provided at the position corresponding to the rear end thereof.

Further, a roller row for pushing (in this example, 2)
Is provided with a pushing pulse generator 10 for generating a pulse signal proportional to the carrying speed of the carrier, and an adjusting pulse generator for generating a pulse signal proportional to the carrying speed of the carrier in the adjusting roller train 5 as well. 11 is provided.

On the basis of the signals from the above-mentioned carrier detectors 8 and 9 and the respective pulse generators 10 and 11, the carrier interval controller (see reference numeral 30 in FIG. 2) is used to adjust the carrier interval. Send speed command to 6.

FIG. 2 shows an example of a block configuration of a control system of the carrier gap adjusting device. In FIG. 2, the carry unit interval controller 30 includes a carry unit number calculating means 12, a feed amount counter for pushing 13, a feed amount counter 14 for adjusting, a carry velocity meter 15 for pushing, and an adjusting motor speed calculating unit 16. It is configured.

The carrying device number calculating means 12 calculates the number X of carrying devices existing on the adjusting roller row 5 based on the carrying device detection signals from the first and second carrying device detectors 8 and 9, and outputs the value. The feed amount counter 13 for pushing and the feed amount counter 14 for adjustment
And to the adjusting motor speed calculating means 16 in addition to these. For example, the number X of carriers is obtained by adding 1 each time the first carrier detector 8 detects a carrier and subtracting 1 each time the second carrier detector 9 detects a carrier.

The feed amount counter for pushing 13 counts the pulse signals output from the pulse generator for pushing 10 while the number X of carriers is 0 until it reaches _1, and adjusts the count value N ₁ . It sends to the motor speed calculation means 16 for. This count value N ₁ is the roller train for pushing from the time when the carrier existing only _one in the adjusting roller train 5 leaves the roller train 5 to the time when the subsequent carrier enters on the roller train 5. Represents the feed amount of. Therefore, this count value N ₁ is the delay amount of the succeeding carrier from the proper position with respect to the target carrier interval L.

The adjustment feed amount counter 14 counts the pulse signals output from the adjustment pulse generator 11 until the number of carriers X returns to 1 while the number X is 2, and the count value N ₂ is adjusted. It sends to the motor speed calculation means 16 for. This count value N ₂ is from the time when the succeeding carrier enters the roller row 5 to the time when the preceding carrier exits the roller row 5 in the state where the preceding carriage exists on the adjusting roller row 5. , The feed amount of the roller row 5 is shown. Therefore, this count value N ₂ is the amount of advance of the succeeding carrier from the proper position with respect to the target carrier interval L.

The transporting device transporting speed meter 15 for calculating the transporting device transporting speed V ₀ in the roller trains 1 and 2 for pushing out is calculated by using the pulse signal output from the pulse generator 10 for sending out. ₀ for adjusting motor speed calculating means 16
Send to

The adjusting motor speed calculating means 16 calculates the number X of carriers and the delay amount N ₁ or the advance amount N _{2 of} the succeeding carriers.
Based on the carrier transport speed V ₀ of the pushing roller train, the carrier transport speed V of the adjustment roller train 5 necessary for adjusting the carrier gap to the preset target carrier gap L is calculated, and this is used as the speed command. Is sent to the carrier gap adjusting motor 6. This speed command changes the number X of transporters from 1 to 0 because the transport speed V required for the adjusting roller row 5 is calculated when the delay amount N ₁ or the advance amount N ₂ of the succeeding transport device is given. It is output at the timing or at the timing of changing from 2 to 1.

The carrier gap adjusting motor 6 rotates in response to the speed command, and drives the rollers of the roller train 5 so that the carrier carrying speed of the adjusting roller train 5 becomes the speed command V.

Next, with reference to FIG. 3, the details of the adjustment operation of the carrier gap will be described. In FIG. 3, the horizontal axis represents the feed amount of the pushing roller rows 1 and 2, and the vertical axis represents the position of the carrier 4.
It shows the movement of the carrier. From the conclusion, the adjustment motor speed calculation means 16 of the present example sets the carry speed V of the carry machine to V = V ₀ · L / when the number X of carry machines changes from 0 to 1.
(L-N ₁₎ to set this as a speed command to be sent to the motor 6, carriage number X is a V = V ₀ · carriage conveying speed V when changed from 2 to _{1 (L-N 2) /} L Is set as the speed command to be sent to the motor 6.

The above-described carrier gap adjusting device automatically performs the following operations (1) to (3).

(1) When the preceding k-th transporter tries to pass on the adjusting roller row 5 along the line 17 in FIG. 3, the distance from the subsequent k + 1-th transporter is the target transporter interval L. If it is the same, that is, if it is an appropriate carrier interval, the trajectory of the succeeding carrier becomes the target line 18, and the succeeding carrier enters the adjusting roller train 5 at the same time as the preceding carrier leaves the adjusting roller train 5. In this case, the first and second carrier detectors 8,
Since 9 is at both ends of the same roller row 5 and the detection point interval is L, the number X of carriers is still 1, and both the feed amount counter 13 for pushing and the feed amount counter 14 for adjustment measure pulse signals. do not do. Further, the adjusting motor speed calculating means 16
Does not change the speed command.

(2) Next, k + for the kth preceding carrier
When the interval of the first succeeding carrier is wider than the target carrier interval L, the locus of the succeeding carrier is line 19 in FIG. 3, and even if the preceding carrier exits the adjusting roller row 5, the succeeding carrier is still in the same roller row 5. Do not come up. At this point, the feeding amount counter 13 for pushing starts measuring, and the feeding amount of the pushing roller train 2 until the succeeding carrier enters the adjusting roller train 5,
That is, the delay amount N ₁ of the succeeding carrier is obtained. Further, when the succeeding carrier moves into the adjustment roller row 5, the number X of the carriers on the roller row 5 changes from 0 to 1, so that the adjustment motor speed calculation means 16 is necessary for the roller row 5. The carrier transport speed V is set to V = V ₀ · L / (L−N ₁ ) and the speed command sent to the carrier interval adjustment motor 6 is changed. The carrier transport speed V set at this time is equal to the inclination α in FIG. 3, and the succeeding conveyor moves along the line 20 having the inclination α, so that the target line 18 is reached when the outlet of the adjustment roller row 5 is reached. Then, the sheet is moved onto the pushing roller row 1 in accordance with.

(3) Next, for the k-th preceding carrier, k
When the interval of the + 1st succeeding carrier is smaller than the target carrier interval L, the locus of the succeeding carrier is line 21 in FIG. 3, and while the preceding carrier is on the adjusting roller row 5, the succeeding carrier is the adjusting roller. Enter on line 5. At this time point, the adjustment feed amount counter 14 starts measurement, and the feed amount of the preceding carrier row 5 until the preceding conveyer exits the adjustment roller row 5, that is, the advance amount N ₂ of the succeeding conveyer device is obtained. Further, when the preceding carrier leaves the adjusting roller row 5, the number X of conveyances on the roller row 5 becomes 2 to 1
Therefore, the adjusting motor speed calculating means 16 sets the carrier carrying speed V required for the roller row 5 to V = V ₀ · (L−N
₂ ) / L, and change the speed command sent to the carrier interval adjustment motor 6. The transport velocity V set at this time is equal to the slope β in FIG. 3, and the succeeding transport line 22 has the slope β.
In order to move along the target roller 18 at the time of reaching the outlet of the adjusting roller train 5,
Move on.

[0030]

As described above, according to the present invention, proper adjustment can be performed by one operation regardless of the direction of the positional deviation, regardless of whether the carrier interval is narrower or wider than the target carrier interval. it can.

[Brief description of drawings]

FIG. 1 is a diagram showing a configuration example of a mechanical device portion of a carrier gap adjustment device according to an embodiment of the present invention.

FIG. 2 is a diagram showing an example of a block configuration of a control system of the carrier gap adjustment device according to the embodiment of the present invention.

FIG. 3 is an explanatory diagram of an adjustment operation of the carrier gap adjustment device according to the embodiment of the present invention.

[Explanation of symbols]

 1, 2 Pushing device moving means (pushing roller row) 3, 7 V belt 4 Carrying device 5 Adjustment carrying device moving means (adjusting roller line) 6 Carrying device interval adjusting motor 8 First carrying device detector 9 Second Transporter detector 10 Pushing pulse generator 11 Adjustment pulse generator 12 Transporter number calculation means 13 Pushing feed amount counter 14 Adjustment feed amount counter 15 Pushing transporter transport speed meter 16 Adjustment motor speed calculation means 17 Preceding transporter Moving line 18 Target line of the trailing carrier 19 Line before adjustment of the trailing carrier with a wide spacing 20 Line during adjustment of the trailing carrier with a wide spacing 21 Line before adjustment of the trailing carrier with a narrow spacing 22 During adjustment of the trailing carrier with a narrow spacing Line 30 Transporter interval controller 31 Transporter movement direction

Claims (2)

[Claims] 1. An adjusting carrier moving means that is connected to a pushing carrier moving means and has a variable carrier carrying speed at the same length as a target carrying distance, and a first carrier fixed to a front end portion of the adjusting carrier moving means. A detector, a second carrier detector fixed to the rear end of the adjusting carrier moving unit, a carrier interval adjusting motor for driving the adjusting carrier moving unit, and a carrier transport of the pushing carrier moving unit. A pushing pulse generator for generating a pulse proportional to the speed, an adjusting pulse generator for generating a pulse proportional to the carrier transport speed of the adjusting carrier moving means, and each of the first and second carrier detectors. And a carrier interval controller that sends a speed command to a carrier interval adjusting motor in response to a signal from the carrier and a signal from each of the pushing and adjusting pulse generators. 2. A carrier interval controller used in the carrier interval adjusting device according to claim 1, wherein the first and second carrier interval controllers are provided.
The number of carrying devices for calculating the number of carrying devices on the carrying device moving means for adjustment according to the signal from each carrying device detector, and the pulse for pushing until the output value of the carrying device number calculating device changes from 0 to 1. A feed amount counter for pushing, which measures the pulse generated by the generator, and an adjustment feed amount, which measures the pulse generated by the adjusting pulse generator, until the output value of the number-of-carrying-units calculation means changes from 2 to 1. A counter, a transporting machine for transporting the transporting machine for calculating the transporting speed of the transporting means for transporting the transporting machine from the pulse generated by the pulse generator for transporting the transport, a means for calculating the number of transporting machines, a feeding amount counter for pushing, a feeding amount counter for adjusting A carrier interval controller comprising an adjusting motor speed calculation means for calculating a speed command to a carrier interval adjusting motor on the basis of an output value from a pusher carrying speed meter.