JP3706442B2 - Transport pipe switching device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a transport pipe switching device that switches a transport system path of a transport pipe that transports an object in a pipe using fluid velocity.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, a method for transporting objects such as dust, linen, powder, grains, and rocks by generating a pressure difference in the extending direction in a hollow transport pipe is known.
Some of them are also referred to as vacuum transport devices by drawing a vacuum as a means for creating a negative pressure in the tube at a certain position in the transport direction.
[0003]
In this vacuum transport apparatus, when transporting garbage, linen, or the like, switching of the transport system to a plurality of separators or storage tanks may be required for separation or temporary storage of garbage.
The apparatus shown in FIG. 6 and below is one of the transport pipe switching apparatuses.
[0004]
6, 7, and 8, a rectangular tube-type switching cylinder 120 in which a Y-shaped pipe 111 and a straight pipe 112 are incorporated between the inlet pipe 109 and the outlet pipe 108 rotates about the rotary shaft 103. It is arranged to be switchable.
[0005]
The rotating shaft 103 of the switching cylinder 120 is supported at both ends by a bearing seat 105 disposed on a pedestal 107, and a sprocket 102 is disposed at one end of the rotating shaft 103, and the electric motor 100 provided on the pedestal 107. To the sprocket via a speed reducer 101 and a chain 104.
[0006]
Further, the switching cylinder 120 and the inlet pipe 109 or the outlet pipe 108 are attached / detached by moving the flange 110 left and right by the attaching / detaching mechanism 118 (FIG. 9) disposed between the two pipes. ing.
In FIG. 9, the hydraulic cylinder 113 is disposed on the inlet pipe 109 or the outlet pipe 108, and the right and left driving force of the hydraulic cylinder 113 is transmitted to the link mechanism constituted by the levers 114, 115, 116, so that the flange 110 is configured to be attached to and detached from the end of the inlet pipe 109 or the outlet pipe 108.
[0007]
In the switching operation of the conventional example configured as described above, first, the driving portion of the hydraulic cylinder 113 moves to the left, so that the driving force is transmitted via the link mechanism constituted by the levers 114, 115, 116, and the flange 110 is detached from the ends of the inlet pipe 109 and the outlet pipe 108.
[0008]
Next, the electric motor 100 is driven and the switching cylinder 120 is rotated so that the Y-shaped pipe 111 or the straight pipe 112 faces the end of the inlet pipe 109 or the outlet pipe 108, and then the drive section of the hydraulic cylinder 113 is moved to the right. As a result, the driving force is transmitted through the link mechanism including the levers 114, 115, and 116, and the flange 110 comes into contact with the ends of the inlet pipe 109 and the outlet pipe 108.
[0009]
[Problems to be solved by the invention]
However, the conventional example described above has the following problems.
(1) Since the switching cylinder is configured by incorporating a Y-tube and a straight pipe and the entire casing of the switching cylinder is rotated, the apparatus size is large.
(2) Since the drive used for detaching the pipe joint uses hydraulic pressure, the mechanism is complicated, the hydraulic unit and cylinders are large and expensive, and it is necessary to keep the hydraulic unit in operation to maintain the air seal. Therefore, there are many check items and maintenance items during operation.
[0010]
In view of the above circumstances, an object of the present invention is to provide a transport pipe switching device in which the configuration of the switching mechanism is simplified.
[0011]
[Means for Solving the Problems]
The present invention relates to a transport pipe switching device that switches a transport system path of a transport pipe that transports an object in a pipe using fluid velocity.
An inlet fitting tube;
A plurality of outlet joint pipes arranged so as to have a connection end surface around the inlet joint pipe axis extension line;
A switching pipe configured to be rotatable about the inlet joint pipe axis, and selectively connecting between the inlet joint pipe and the outlet joint pipe by the turning;
Sealing means interposed between the switching pipe and the outlet joint pipe;
A pressing means for pressing between the switching pipe and the outlet joint pipe through the sealing means;
A pressing release means for releasing the pressing of the pressing means when switching between the switching pipe and the outlet joint pipe ,
Said pressing means and pressure release means is provided more on the outer periphery of the outlet fitting tube end, through said sealing means arranged to control the connection between the outlet joint pipe and the switching tube, the pressing means When the switching pipe is joined, it is always pressed using only a mechanical or magnetic pressing force, and the pressing release means operates only at the time of releasing to resist the pressing force of the pressing means. And
[0012]
In the present invention, as shown in FIG. 1, an inlet joint pipe 2 and a plurality of outlet joint pipes 3 </ b> A and 3 </ b> B arranged so as to have connection end faces around an extension line of an axis 21 of the inlet joint pipe 2 are arranged. Yes.
Further, one end of the switching pipe 1 is fitted and connected to the inlet joint pipe 2 via the gland packing 8 via the end 1a (FIG. 2) so as to be rotatable in the circumferential direction, and is connected to the outlet joint pipe 3A from the one end. The switching pipe 1 is arranged in a curved shape toward the other end 1b (FIG. 5), and is configured to be rotatable about the inlet joint pipe axis 21. By the turning, the inlet joint pipe 2 and the outlet joint pipe 3A are configured. , 3B are selectively connected.
[0013]
That is, by rotating the one end 1a of the switching tube 1 in the circumferential direction, the other end 1b is centered on the axis 21 of the rotating shaft 13 as shown by the one-dot chain line in FIGS. It is configured so that it can be switched and connected to the outlet joint pipe 3B.
In the configuration in which the outlet joint pipe is further present, the switching pipe may be configured to be further rotatable.
[0014]
Since this invention is comprised in this way, it can switch-connect with several exit joint pipes with the said one switching pipe, and can provide the transport pipe switching apparatus which simplified the structure of the switching mechanism. .
[0015]
The present invention also provides a sealing means (ring packing) 9 interposed between the switching pipe 1 and the outlet joint pipes 3A and 3B,
A pressing means (spring 4 and seal valve 10) for pressing between the switching pipe 1 and the outlet joint pipes 3A and 3B via the sealing means 9;
Press release means (air cylinder 5) for releasing the press of the pressing means when switching between the switching pipe and the outlet joint pipe ;
A plurality of the pressing means and the pressing release means are provided on the outer periphery of the outlet joint pipe end, and the connection state between the switching pipe and the outlet joint pipe is controlled via the sealing means ,
The pressing means is configured to always press using only a mechanical or magnetic pressing force when the switching pipe is joined, and the pressing releasing means operates only at the time of releasing to resist the pressing force of the pressing means. are doing.
That is, as shown in FIG. 5, a seal means (ring packing) 9 is disposed between the other end 1b of the switching pipe 1 and the outlet joint pipes 3A and 3B, and the spring 4 is connected when the seal means 9 is connected. A plurality of pressing means (4, 10) and pressing release means (5) for releasing the pressing force by the air cylinder 5 at the time of switching are provided on the outer periphery of the outlet joint pipe 3A end portion 3Aa. .
[0016]
Therefore, the sealing means 9 is disposed between the other end 1b of the switching pipe 1 and the outlet joint pipes 3A and 3B, the sealing means 9 is pressed when connected, and the pressing force is released by air when switching. A plurality of pressing means are provided on the outer periphery of the outlet joint pipe end, and the attachment / detachment device is configured to control the connection state between the other end of the switching pipe and the outlet joint pipe. When the switching pipe 1 is rotated, the air cylinder 5 is turned on, the pushing force of the spring 4 is released by the suction force of the air cylinder 5, and the joining is performed. The switching tube 1 is rotated with the part free.
[0017]
After the rotation, the suction force of the air cylinder 5 is removed, and the joint is sealed again by the pressing force of the spring 4.
Since the compression pressure is applied to the spring 4, the air seal is maintained during system operation.
As described above, since the air cylinder 5 is used only on and off, the number of components can be reduced, and the apparatus is simple and inexpensive.
In addition, by using spring force, it is not necessary to always supply external power, realizing simple, compact and energy saving.
[0018]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the drawings. However, the dimensions, materials, shapes, relative arrangements, and the like of the components described in this embodiment are not intended to limit the scope of the present invention unless otherwise specified. It is just an example.
[0019]
1 to 5 are diagrams showing an embodiment of the present invention.
As shown in FIG. 1, an inlet joint pipe 2 and outlet joint pipes 3 </ b> A and 3 </ b> B are disposed on a pedestal 12, and a switching pipe 1 that switches a passage between the inlet joint pipe 2 and the outlet joint pipe 3 is disposed. ing.
[0020]
As shown in FIG. 2, one end of the switching pipe 1 is fitted and connected to the inlet joint pipe 2 via the end portion 1 a via the gland packing 8 in the circumferential direction and in an airtight state in the pipe. As shown in FIG. 5, the switching pipe 1 is disposed in a curved shape from the end 1a at the one end toward the other end 1b (FIG. 5) connected to the outlet joint pipe 3A.
The curved pipe used for the switching pipe differs depending on the object to be transferred, but in order to prevent the object from flowing smoothly and blocking, it is necessary to use a curved pipe formed with a curvature of 5 to 6 times the diameter of the transport pipe. Although it is desirable, the curved surface shape may be an appropriate shape as long as the object is smoothly transferred.
[0021]
Further, as shown in FIG. 2, a sprocket 7 is provided at the end 1 a of the switching pipe 1, and is connected to the rotation shaft of the motor 6 disposed on the base 12 via the chain 18 and the speed reducer 20. Yes.
[0022]
The switching tube 1 is supported by a switching tube support 14. The switching pipe support 14 is a plate-like body that stands upright at a front portion of 14d. The rear end 14c abuts the end 1a of the switching pipe 1, and the switching pipe 1 is an upper surface of the support 14. 14b, an upper end 14a of the front portion 14d, and a switching pipe presser 17 having a spring property provided on the rear end side, and the switching pipe 1 can be rotated by the sprocket 7 integrally with the support body 14. It is configured.
[0023]
The rear end 14c of the support body 14 and the end portion 1a of the switching tube 1 may be integrally formed. However, when the support 14 is configured as a separate body as in this embodiment, the end portion 1a has a convex portion. And a concave portion that can be fitted to the convex portion can be formed at the rear end 14c of the support 14.
[0024]
A rotating shaft 13 having an extension axis of the inlet joint pipe axis 21 is provided at the front portion 14 d of the switching pipe support 14, and the tip of the rotating shaft 13 is a bearing of the bearing base 11 fixed to the pedestal 12. 15 is rotatably held.
[0025]
Therefore, the switching tube 1 placed on the receiving table 16A is rotated by rotating the one end 1a of the switching tube 1 in the circumferential direction by the motor 6 as shown by a one-dot chain line in FIGS. The other end 1b rotates about the axis of the rotating shaft 13 in the direction of the arrow 19 in FIG. 4, the switching tube 1 is indicated by 1 'indicated by a dashed line, and the upper end 14a of the support 14 is indicated by 14a' indicated by a dashed line. Thus, the switching pipe 1 is placed on the cradle 16B and placed at a position where it can be switched and connected to the outlet joint pipe 3B.
[0026]
Further, as shown in FIG. 5, a seal means (ring packing) 9 is provided at the outer peripheral other end 1b of the switching pipe 1, and a seal valve 10 is installed at the outer peripheral end of the outlet joint pipes 3A and 3B. The seal valve 10 is pressed by the spring 4 when the seal means 9 is connected, and the inside of the pipe is kept airtight. When the switch is switched, the seal valve 10 is moved to the left against the urging force of the spring 4 by the air cylinder 5. And the pressing force to the ring packing 9 is released.
[0027]
The spring 4 and the air cylinder 5 to which compression is applied are arranged in parallel, and when the switching pipe 1 is rotated for the switching operation, the air cylinder 5 is turned on and the suction force of the air cylinder 5 is used. Then, the pushing force of the spring 4 is released. The switching pipe 1 is rotated after the joint is made free.
[0028]
After the rotation, the suction force of the air cylinder 5 is removed, and the joint is sealed again by the pressing force of the spring 4.
Since the compression pressure is applied to the spring 4, the air seal is maintained during system operation.
[0029]
In addition, although the air cylinder was demonstrated to the said embodiment, it is not necessarily limited to this, The urging | biasing force is provided by the spring or the permanent magnet, and the electromagnetic cylinder which cancels | releases this urging | biasing force by electricity supply may be used. Of course.
[0030]
In addition, although two outlet joint pipes 3A and 3B have been described, the outlet joint pipe may be further provided. In this case, the switching pipe may be configured to be further rotatable.
[0031]
Further, the air sealing on the inlet side is performed by the gland packing 8 as shown in FIG. 2, but may be performed by the gland packing 8, the seal valve 10 and the ring packing as shown in FIG.
[0032]
Of course, an oil seal may be used for the air seal in addition to the gland packing and the ring packing.
[0033]
As described in detail above, in the present embodiment, the inlet joint pipe 2 and a plurality of outlet joint pipes (3A or 3A) arranged so as to have connection end faces around the extension line of the axis 21 of the inlet joint pipe 2 3B) and a switch that is configured to be rotatable about the axis 21 of the inlet joint pipe 2 and selectively connects between the inlet joint pipe 2 and the outlet joint pipe (3A or 3B) by the rotation. A pipe 1 and sealing means 9 interposed between the switching pipe 1 and the outlet joint pipe (3A, 3B) and configured to be retractable in a substantially axial direction from a connection position when the switching pipe 1 is switched, By rotating one end of the switching pipe 1 in the circumferential direction, the outlet joint pipe 3B can be switched and connected so that a single switching pipe 1 can be switched and connected to a plurality of outlet joint pipes. Transport pipe switching with simplified switching mechanism configuration It is possible to provide a location.
[0034]
In addition, since one switching pipe is used to switch from one to the other, after the transportation system is switched, the other system is completely disconnected, so that air leakage in the other system is switched. Since there is no influence on the other side and it is not necessary to install a closing valve or the like in one system, a transport pipe switching device with a simplified configuration can be provided.
[0035]
Further, a seal means (ring packing) 9 is arranged between the other end 1b of the switching pipe 1 and the outlet joint pipe (3A, 3B), and the seal valve 10 is moved by the spring 4 when the seal means 9 is connected. When a plurality of pressing means (4, 5, 10) for pressing and releasing the pressing force by the air cylinder 5 at the time of switching are provided on the outer periphery of the end 3Aa of the outlet joint pipe 3A, the air cylinder 5 is turned on. Then, the pushing force of the spring 4 is released by the suction force of the air cylinder 5, and the switching pipe 1 is rotated by releasing the joint, and after the rotation, the suction force of the air cylinder 5 is released and the pushing force of the spring 4 is released. As a result, the joint is sealed again, so that the air seal during system operation remains maintained, and the air cylinder 5 is used only ON-OFF, so the number of components is reduced Door can be, it is assumed simple and inexpensive.
[0036]
In addition, by using a spring force during air sealing, there is no need to constantly supply external power, and a monitor or the like is not required, thus realizing simple, compact and energy saving.
[0037]
Further, a plurality of pressing means (4, 5, 10) constituted by the spring 4, the air cylinder 5 or the electric cylinder, and the seal valve 10 are arranged on the outer periphery of the end 3Aa of the outlet joint pipe 3A, and the pressing means is a ring. The detaching device configured to press against the packing is not limited to the switching device, and can be used as a sealing mechanism for various operating parts.
[0038]
【The invention's effect】
As described above, the present invention has the following effects.
1. Since only the switching pipe is rotated and the entire Y-shaped pipe and straight pipe are not rotated, a single switching pipe can be connected to a plurality of outlet joint pipes, and the transport pipe has a simplified switching mechanism. A switching device can be provided.
2. Since switching from one to the other by means of the two switching pipes, the air leakage in the other system was switched because the other system was completely disconnected after switching the transport system There is no influence on the other, and it is not necessary to install a closing valve or the like in one system.
3. Switching pipes are always joined only by mechanical or magnetic pushing force, and only when detached, using a small air cylinder or power by electromagnetic force, etc. The equipment can be simplified and not only is easy to maintain, but also reduces power consumption and equipment costs.
4). Cost reduction can be achieved by downsizing and simplifying the device and reducing power consumption.
[Brief description of the drawings]
FIG. 1 is a plan view of a transport pipe switching device according to an embodiment of the present invention.
FIG. 2 is a partial view showing a connection type bear on the inlet side of the switching pipe.
FIG. 3 is a partial view showing a support form of the switching pipe.
4 is a partially omitted A-Λ view of FIG.
FIG. 5 is a partial view showing a connection configuration on the outlet side of the switching pipe.
FIG. 6 is a front view of a transport pipe switching device in a conventional example.
FIG. 7 is a side view of a switching pipe in a conventional example.
FIG. 8 is a plan view of a transport pipe switching device in a conventional example.
FIG. 9 is a configuration diagram of a desorption mechanism in a conventional example.
[Explanation of symbols]
1 Switching pipe 2 Inlet joint pipe 3 Outlet joint pipe (3A, 3B)
4 Spring 5 Air cylinder 7 Sprocket 8 Gland packing 9 Ring packing (sealing means)
DESCRIPTION OF SYMBOLS 10 Seal valve 13 Rotating shaft 14 Switching pipe support body

Claims (1)

In a transport pipe switching device that switches the transport path of a transport pipe that transports an object in a pipe using the fluid velocity,
An inlet fitting tube;
A plurality of outlet joint pipes arranged so as to have a connection end surface around the inlet joint pipe axis extension line;
A switching pipe configured to be rotatable about the inlet joint pipe axis, and selectively connecting between the inlet joint pipe and the outlet joint pipe by the turning;
Sealing means interposed between the switching pipe and the outlet joint pipe;
A pressing means for pressing between the switching pipe and the outlet joint pipe through the sealing means;
A pressing release means for releasing the pressing of the pressing means when switching between the switching pipe and the outlet joint pipe ,
Said pressing means and pressure release means is provided more on the outer periphery of the outlet fitting tube end, through said sealing means arranged to control the connection between the outlet joint pipe and the switching tube, the pressing means When the switching pipe is joined, it is always pressed using only a mechanical or magnetic pressing force, and the pressing release means operates only at the time of releasing to resist the pressing force of the pressing means. Transport pipe switching device.

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