JPS5918289B2 - Braking and stopping device for trolleys in forced air conveyance equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention comprises a pneumatic conduit that allows a forced airflow to flow through the conduit, and uses the forced airflow as a driving force to move a cargo carrier along the pneumatic conduit. The present invention relates to a braking/stopping device for a truck in a forced air conveyance facility configured as follows.

The braking/stopping device for the trolley in this type of forced air conveyance equipment is used to safely transport the trolley to the counter-bogie work section when carrying out counter-bogie work such as loading and unloading. It must be possible to constantly maintain the flow state of the forced air flow in the pneumatic pipeline and to perform pneumatic conveyance efficiently at all times.

Furthermore, in the forced air conveyance equipment, the load carrying trolley can be constructed into small units to facilitate work with the trolley;
Moreover, if you want to ensure sufficient transport efficiency by transporting many small units of trolleys at the same time, a braking/stopping device for the trolleys that transports the trolleys from inside the pneumatic pipeline to the counter-bogie work section. Even if a small unit of cart arrives with multiple fortunes, it can be stored temporarily,
Moreover, a function is required to send these storage carts one by one to the cart handling section.

For this reason, in the past, a gravity path was formed to move the truck from the pneumatic pipe to the counter-truck working section by gravity, and a brake mechanism that performed a braking action by slidingly contacting the truck on this gravity path was brought into contact with the truck. By doing so, a stopper mechanism was provided to perform a stopping action, thereby providing a braking/stopping device for the trolley that could be carried from the pneumatic pipe to the counter-bogie working section with braking control. Since the system uses a mechanical structure such as a brake mechanism or a stopper mechanism that slides or contacts the trolley to control and stop the trolley, the trolley must also have a structure that corresponds to each of these brake mechanisms and stopper mechanisms. There was a drawback that the stop placed restrictions on the configuration of the trolley.

In particular, the inertia of a bogie changes depending on its weight and running performance based on the degree of wear of the running wheels, but the stopper mechanism stops the bogie depending on whether it comes into contact with the bogie moving down Gravina 4-way. Since it is installed regardless of changes in the inertia of the bogie, it is almost impossible to stop the bogie safely and smoothly regardless of the magnitude of the inertia of the bogie. −
It is necessary to change the angle of inclination of the road to the ground or change its setting position.

In this way, conventional devices must be designed and configured to meet various conditions, and transport conditions such as the weight and running performance of the trolley change depending on the purpose of transport, etc. In the past, it was necessary to appropriately configure a braking/stopping device for the trolley separately for each transport facility.

In view of the above points, the present invention is capable of stopping the bogies by braking in the most suitable state according to various conditions without imposing restrictions on the bogie configuration, and furthermore, the bogies can be stopped one by one starting from the first bogie. It is an object of the present invention to provide a braking/stopping device for a truck in forced air conveyance equipment that can reliably and smoothly deliver the vehicle to a predetermined location.

Hereinafter, an embodiment of the present invention will be described in detail based on FIG. 1. A pneumatic conduit 2 that allows a forced air flow to flow steadily in the conduit is constructed, and the cargo carrier 1 is propelled by the forced air flow. In forced air conveyance equipment configured to move along the inside of the pneumatic pipe 2 as a force, the forced air flowing inside the pneumatic pipe 2 is transferred to the terminal end of the pneumatic pipe 2 to outside air. An escape port 6 is formed on the upper side of the conveyance system, and a conduit 3 for controlling the operation of the truck is connected in a row to accommodate a plurality of the trucks 1 that have escaped from the forced air system to the outside of the system. At the end of this trolley operation control conduit 3, delay closing plates 4, 4A which can be selectively opened and closed by vertically sliding are provided at a distance sufficient to accommodate one cargo transporting trolley 1. Of both the shielding plates 4, 4A, the portion of the bogie operation control conduit 3 further upstream than the upstream delay closing plate 4, the downstream portion of this delay closing plate 4 and adjacent thereto, and the downstream delay closing plate 4. A discharge port 5a that opens into the pipe line 3 at a location upstream of and close to the closing plate 4A.
and 5b and a suction port 5C, and the pump P1
Airflow blowing pipe portion 8a from to the discharge ports 5a and 5b
, 8b, the suction port 5C, and the counter-truck working section 7
Airflow suction pipe section 8c from an air intake port (not shown) opened in a pipe section on the downstream side in the direction of carriage movement to pump P1
At t8d, the respective flow rate control valves B1. B2. B3. B4 is interposed therebetween, and the load carrying trolley 1, which has been moved and stopped at a fixed position (to be described later) of the trolley operation control conduit 3 based on the alternative opening and closing of both the shielding plates 4 and 4A, is connected to the above unit by unit. Both shielding plates 4,
The second gas circulation device 5 can be propelled and moved to the pipe section between 4A and 4A.

Further, discharge ports are provided at the starting end side of the bogie operation control conduit 3, that is, at a location downstream of and close to the air flow outlet 6, and at a location upstream and close to the discharge port 5a of the second gas circulation device 5. 9a and the first pump with pump P2 that opens the suction port 9b.
A gas recirculation device 10 is provided to brake the luggage carrier 1 which escapes from the forced airflow action area of the airflow pipe 2 and moves inertia by an air cushion effect, and returns the braked luggage carrier 1 to the above-mentioned fixed position. Configure the equipment to be moved.

Bo is a flow control valve. The interval between the suction port 9b of the first gas recirculation device 10 with the pump P2 and the discharge port 5a of the second gas recirculation device 5 is set to be shorter than the longitudinal length t of the truck.

Moreover, when the pump P2 of the trolley 1 traveling through the conduit 3 is detected by the trolley detector S1 and the pump P2 is stopped and the moving power is lost at the suction port 9b of the first gas recirculation device 10, the trolley 1 is bypassed. It is set to stop at a position spanning the suction port 9b of the passage 10 and the discharge port 5a of the second gas circulation device 5.

In addition, 81. in the figure. B2. B3 is a trolley detector.

FIG. 3 shows another embodiment, in which the first gas circulation device 10 is located downstream of the discharge port 5a of the second gas circulation device 5 at a distance smaller than the longitudinal length l of the truck 1. Suction port 9b
This is what was installed.

In this embodiment as well, the trolley 1 is connected to the first gas circulation device 10.
It is configured to stop at a position spanning the suction port 9b of the second gas recirculation device 5 and the discharge port 5a of the second gas recirculation device 5.

The operation of the configuration is as follows, based on FIG.
The following is an example of when someone arrives with money.

(B) When the bogie 1 that has escaped from the forced airflow system enters the bogie operation control conduit 3 due to inertia force, the air cushion effect and running resistance cause the discharge port 9a and the air inlet 9
The pump is trying to brake and stop the pump via b.
Due to the forced airflow generated in the pipe line 3 due to the operation of the pump P2, the pump P2 moves to the suction port 9b of the first gas recirculation device 10, that is, the above-mentioned fixed position, and stops.

At this time, pump P1 stops and each flow control valve Bl j B
2 j B3? B4 is closed.

(See Figure 2A) (b) The trolley detector S1 detects that the leading trolley 1 has reached the suction port 9b of the first gas circulation device 10, and in response to this detection result, the pump P2 is stopped. Flow control valve B
.

Also close. Therefore, the truck 1 is stopped due to the disappearance of the forced airflow by the pump P2 and the air cushion between the truck 1 and the shielding plate 4.

Next, the pump P1 operates, and the shielding plate 4 and the flow control valve B1
．． When B2 is opened, the following truck 1 moves between the shielding plates 4 and 4A due to the gas blowing action by the discharge port 5a and the gas suction action by the blowing port 5c.

(See Figure 2 B and C) (c) The trolley detector S2 detects that the trolley 1 has moved between the shielding plates 4 and 4A, and in response to this detection result, the shielding plate 4 and the flow rate are controlled. Valve B1. After B3 is closed, when the shielding plate 4A and the flow rate control valves B2 and B4 are opened, a gap between the shielding plates 4 and 4A is caused by the gas blowing action by the discharge port 5b and the gas suction action by the suction port (not shown). Trolley 1 located at
is transferred to the counter-bogie working section γ.

(See second diagram, E)) The trolley detector S3 detects that the trolley 1 has moved to the counter-bogie working section 7, and in response to this detection result, the shielding plate 4
A and flow control valve B2. After closing B4, open the flow control valve B4 and pump P.

is activated to move the cart 1, which is stopped in front of the suction port 9b of the first gas recirculation device 10, to the point of the suction port 9b.

After this truck 1 moves to the point of the suction port 9b, the pump P2 is stopped and the flow rate control valve B is closed.

Close. (Refer to Figures 2 F and G) (E) Repeat the steps from (B) to (2) above to select one of the top trolleys 1 that has stopped on the upper side in the direction of trolley movement with respect to the shielding plate 4. It is sent one by one from the bogie brake/stop conduit 3 to the bogie work section.

As is clear from the above embodiments, the braking/stopping device for the truck in the forced air conveyance equipment according to the present invention is applied to the end or midway of the pneumatic pipe through which the forced air flow that provides propulsive force to the cargo conveyance truck is applied. A bogie operation control conduit of a length capable of accommodating a plurality of rows of bogies that have escaped from the forced air system to the outside of the system is installed in series, and on the starting end side of this bogie operation control conduit, A first gas recirculation device that brakes a load carrier that escapes from the forced air flow action area of the pneumatic pipe line and moves inertly by an air cushion effect, and moves the braked load carrier to a fixed position by a pump. , disposed through the discharge port and suction port opening into the bogie operation control conduit, and at the end side of the bogie operation control conduit with a sufficient interval to accommodate one cargo transport dolly. a shielding plate that can be selectively opened and closed; and a shielding plate that can be selectively opened and closed, and both shielding units for each unit, such as a load carrying trolley that has been moved to the fixed position of the trolley operation control conduit based on the alternative opening and closing of both shielding plates. A second gas circulation device that can be propelled and moved by a pump other than the pump is disposed in the conduit portion between the plates through a discharge port and a suction port that open to the bogie operation control conduit, The present invention is characterized in that it is provided with a device that can separate and send out each unit of the cargo carrier located in the conduit section between the two shielding plates, and has the following effects.

That is, the operation control for the cargo carrying trolley 1 that escapes from the forced air flow action area of the pneumatic pipe 2 and moves inertially is carried out by the above-mentioned trolley operation control that is separated from the pneumatic pipe 2 in terms of trolley operation. Braking can be carried out exclusively by a combination of braking due to the air cushion effect within the utility pipe 3 and position movement without physical contact using separate airflow. This can be done effectively without placing any restrictions on the configuration of the truck 1 itself.

Moreover, for the purpose of facilitating the handling of trolleys and increasing the transport efficiency, even when a number of small-sized trolleys 1 are transported within the jurisdiction at the same time, and multiple trolleys arrive in unison, the above-mentioned alternative opening/closing method can be used. Due to the separation action and propulsion movement action of each unit bogie by the flexible shielding plates 4, 4A and the second gas circulation device 5, the following bogies are not affected.
In other words, the plurality of carts 1 stored and stopped in a line in the conduit 3 can be moved to the top of the main cart without fear of the following carts being tangled and moved as the leading cart moves. It is possible to reliably feed one unit at a time into the conduit section between the two shielding plates 4 and 4A, and then send it out unit by unit to the next process at appropriate time intervals. Trouble-free throughout the entire length of the road, part 1.
This made it possible to carry out efficient transportation.

In particular, in the present invention, the bogie operation control conduit 3
A circulating flow for sending air in the direction of vehicle movement is applied to the starting end and the ending end of the pump P1. Since it is formed by a plurality of gas recirculation devices 5, 10 equipped with P2, a plurality of carts being transported can be simultaneously handled by the plurality of gas recirculation devices 5, 10.
The machine can be moved by the operation of the machine, which has further improved work efficiency.

[Brief explanation of the drawing]

FIG. 1 is a schematic side view of a braking/stopping device for a truck in a forced air conveyance facility according to the present invention, FIGS. 2A to 2G are schematic side views showing the operating sequence, and FIG. FIG. 2 is a schematic side view showing an embodiment. 1... Trolley, 2... Pneumatic pipe, 3...
...Pipeline for bogie operation control, 4,4A...Blocking plate, 5...Second gas circulation device, 5a, 5b...
...Discharge port, 9a... Outlet port, 9b...
・Suction port, 10...first gas circulation device, Pl,
P2・------Pump, B□ t Bt t B2
t B3""...flow control valve, Sl 2 S2, S
3...Dolly detection tool.

Claims (1)

[Claims] 1 A plurality of trolleys 1 that have escaped from the forced airflow system are housed in a row at the end or in the middle of the pneumatic pipe line 2 through which the forced airflow that gives propulsion force to the cargo transportation trolley 1 is flowing. A bogie operation control conduit 3 of a possible length is installed in series, and at the starting end side of the bogie operation control conduit 3, there is provided a cargo carrying dolly that escapes from the forced air flow action area of the pneumatic conduit 20 and moves inertially. A first gas recirculation device 10 that performs braking by an air cushion effect and moves the braked cargo transport trolley 1 to a fixed position by a pump P2 is connected to a discharge port 9a and a suction opening in the trolley operation control conduit 3. A shielding plate 4, which is disposed through the port 9b and can be selectively opened and closed at a distance sufficient to accommodate one cargo transporting trolley 1, is provided on the terminal end side of the trolley operation control conduit 3. 4A, and the baggage transport trolley 1 that has been moved to the fixed position of the trolley operation control conduit 3 based on the alternative opening/closing of both the shielding plates 4, 4A.
A second gas circulation device 5, which can be propelled and moved by a pump P1 different from the pump P2, has a discharge port 5a and a suction port 5c that open to the bogie operation control conduit 3 in the conduit portion between A and A. The forced air flow conveyance system is characterized by being equipped with a device that can separate and send out the load carrier 1 in units, which is disposed through the shielding plates 4 and 4A and is located in the conduit section between the two shielding plates 4 and 4A. Braking and stopping device for trolleys in equipment.