JPH0219052B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cargo loading device mainly used for capsule transportation.

In conventional loading devices for transporting capsules, the capsule traveling along the pipeline is temporarily stopped at a loading position, and cargo such as powder is loaded into the capsule from a hopper.

For this reason, there was a problem that it took a long time to load the capsules and the transport efficiency of the capsules was low. Additionally, when attempting to simultaneously load a plurality of capsules as the number of capsules increases during transportation, there is a problem in that the size of the device increases. Therefore, there has been a need to develop a device that can load a capsule while it is running without stopping.

The present invention has been made in view of the above circumstances, and its object is to provide a compact and highly efficient loading device that can continuously load capsules while running them.

An embodiment of the present invention will be described below. 1 in the figure is a pipeline. A capsule 2 runs in this pipeline 1 under air pressure. This capsule 2 has a front bottom metal 2a and a rear bottom metal 2b fixed to the front and rear end positions of the bottom. Furthermore, a connecting device 2c for connecting the capsules to each other is provided at the center of the front and rear ends of the capsule 2 via a hydraulic shock absorbing cylinder (not shown). In addition, the connecting device 2
The capsules c are automatically connected when the capsules collide with each other, and the connection is released when a releasing roller 2d suspended from the lower end of the connecting device 2c is pushed upward. Furthermore, openings 3 and 4 extending in the length direction are formed on the top and bottom surfaces of the pipeline 1 at the loading position, respectively. A rotary table 5 is located above the opening 3 on the top surface of the pipeline 1.

As shown in FIGS. 2 and 3, a plurality of guide wheels 7 are disposed on the lower surface of the periphery of the rotary table 5 and roll on rails 6 installed along the periphery. The rotary table 5 is supported substantially horizontally by the rails 6 and is configured to rotate around a center C. Further, the upper surface of the rotary table 5 has a concave shape formed by an outer wall 5a provided at the peripheral edge, an inner wall 5b concentric with the rotary table 5 provided near the center C of the rotary table 5. A loading compartment 5c is provided. Further, on the lower surface of the loading compartment 5c of the rotary table 5, a plurality of batchers 8 (three in the drawing) having the same volume as the capsules 2 are arranged at intervals corresponding to the length of the capsules 2 along the circumferential direction. It is arranged. This batcher 8 is a rotary table 5
As it rotates, it runs almost directly above the opening 3. Further, the upper surface of the batcher 8 is open in alignment with the upper surface of the loading compartment 5c. Further, the bottom cover 9 that closes the discharge port 8c of the batcher 8 is divided into two bottom cover pieces 9a and 9b, as shown in FIGS. 5 and 6.
The proximal ends of a and 9b are rotatably attached to the lower part of the batcher 8 in the longitudinal direction via pins 10a and 10b. Free end 9 of one bottom cover piece 9a
c is supported by a hook-shaped lock lever 12 that is swingably provided via a pin 11 on a pair of partition plates 8a and 8b fixed between the left and right side walls at approximately the center of the batcher 8, and 9b
The free end 9d is the free end 9 of one bottom cover piece 9a.
It is supported by c. A pair of link mechanisms 13, 13 are provided at both ends of the bottom cover 9, and one bottom cover piece 9a
and the other bottom cover piece 9b are the link mechanisms 13, 13.
are connected to each other by one bottom cover piece 9a.
When the bottom cover piece 9b rotates about the pin 10a as a fulcrum, the other bottom cover piece 9b also rotates about the pin 10b. The lock lever 12 is urged by a coil spring 14 in a direction to support the free end 9c of one bottom cover piece 9a. The pin 11, lock lever 12, and spring 14 are housed between a pair of partition plates 8a and 8b as shown in Fig. 6, and a mountain-shaped lid is provided at the top to prevent cargo from entering. covered.

On the other hand, a pair of endless chains 1 of the transportation device 17 are connected to the opening 4 at the bottom of the pipeline 1.
8, 18 are sprocket wheels 19, 20, 2
1, it is provided at approximately the same height and parallel to the bottom surface of the pipeline 1. Chain guides 15, 15, 16, and 16 are installed on the upper and lower surfaces of the endless chains 18, 18, respectively, between the sprocket wheel 19 and the sprocket wheel 20, and the endless chains 18, 18 are connected to the sprocket wheels. It is designed to prevent it from coming off. This endless chain 18,
A plurality of transport vehicles 22 are arranged at 18.
The transport cart 22 has an interval corresponding to the vehicle length L ₁ of the capsules 2 and a length of the connecting portion between each capsule 2.
They are arranged on endless chains 18, 18 with a spacing corresponding to _L2 . Further, the circumferential length of the endless chains 18, 18 is set to be an integral multiple of the length L ₁ +L ₂ so that the transport vehicle 22 and the capsule 2 are not out of phase. As shown in FIG. 3, on the lower surface of both sides of each carrier 22, there are carrier wheels 2 that roll on rails 23, 23 installed parallel to the endless chains 18, 18.
4 and 24 are provided. In addition, two support rollers 25 are provided on the left and right sides at the center of the upper surface of the transport vehicle 22. The conveyance cart 22 supports the capsule 2 that has come from the pipeline 1 to the left side of the conveyance device 17 in FIG. (right side in FIG. 1) and then sent to the pipeline 1 again. That is, the support roller 25
is narrower than the slits 1a and 1b formed in the bottom of the pipeline 1 on the entrance and exit end side of the opening 4, and the carriage 22 is transported to the entrance end of the opening 4 by the endless chains 18 and 18. When released, the support roller 25 enters the slit 1a, and the wheels 26 of the capsule 2 are attached to the pipeline 1.
The front bottom metal 2a or the rear bottom metal 2b is supported before moving from the bottom surface to the opening 4, and when the carriage 22 is transported to the exit end side of the opening 4 by the endless chains 18, 18. , support roller 2
5 enters the slit 1b and supports the front bottom metal 2a or the rear bottom metal 2b until the wheels 26 of the capsule 2 touch the bottom surface of the pipeline 1 from the opening 4. Therefore, when the capsule 2 moves from the pipeline 1 to the inlet end of the opening 4 or from the outlet end of the opening 4 to the pipeline 1, the wheels 26 move toward the opening 4.
There is no fear of becoming depressed. Note that the slits 1a and 1b are narrower than the wheels 26,
There is no fear that the wheel 26 will fall into the slits 1a, 1b.

Further, a drive device 27 is installed on one side of the rotary table 5 (on the right side in FIG. 1). A transmission 29 is connected to a drive shaft 28 of this drive device 27 . The transmission motor 29 includes two transmission shafts 3.
0a and 30b are provided. These transmission shafts 3
Rotational driving force is transmitted from the drive device 27 to 0a and 30b. The rotational driving force transmitted to one transmission shaft 30a is transmitted to the rotary table 5 via a reduction gear 31, a sprocket wheel 32, and a chain 33. In addition, the other transmission shaft 30b
The rotational driving force transmitted to is transmitted to the conveying device 17 via a reduction gear 34, a chain 35, and a sprocket wheel 36 provided coaxially with the sprocket wheel 19. The rotary table 5 is rotated by a drive device 27 in the direction of arrow A shown in FIG.
2 is driven by a drive device 27 in the direction of arrow B shown in FIG. Here, the number of rotations of the rotary table 5 is N
and the traveling speed of the transport vehicle 22 (capsule 2
When the traveling speed of the reducer 3 is set to V, the power transmission system (reducer 3
1, sprocket wheel 32, chain 33,
By setting the speed transmission ratio of the reducer 34, chain 35, and sprocket wheel 36), the batcher 8 and the capsule 2 can be synchronized. That is, when the batcher 8 moves above the opening 3 as the rotary table 5 rotates, the capsule 2 is moved onto the opening 3 by the carrier 22.
The vehicle travels at a position substantially directly below the batcher 8, that is, a position substantially directly below the batcher 8. At this time, the batcher 8 and the capsule 2 are parallel to each other and facing the same direction.

Further, on the loading position side of the pipeline 1 below the rotary table 5, as shown in FIG. A dog 39 is provided which presses a cam 38 provided on the lock lever 12 of the batcher 8 when it is moved.
When the cam 38 is pressed by the dog 39, the lock lever 12 rotates about the pin 11 as a fulcrum in the direction of arrow D in FIG. The piece 9a comes off from the free end 9c, and the bottom cover piece 9a and the other bottom cover piece 9b rotate downward about the pins 10a and 10b as fulcrums. Note that the cam 38 and dog 39 described above constitute an opening means.

Further, in the portion where the batcher 8 moves immediately after passing over the opening 3 below the rotary table 5, four cam rollers (blocked rollers) are installed along the rotational direction of the rotary table 5, as shown in FIG. cam) 4
1a, 41b, 41c, and 41d are arranged at different mounting angles. When the batcher 8 moves over the cam rollers 41a, 41b, 41c, and 41d, the bottom cover piece 9b in a hanging state collides with the cam rollers 41a, 41b, 41c, and 41d, and is sequentially lifted up. The movement of this bottom cover piece 9b is transmitted to the other bottom cover piece 9a via the link mechanism 13, and the bottom cover piece 9a also rotates upward about the pin 10a, so the bottom cover 8 of the batcher 8 is moved by the cam roller. 41
It closes completely immediately after passing over d.

Further, on the other side of the rotary table 5 (on the left side in FIG. 1), a supply device 42 for supplying cargo such as powder to the batcher 8 with the bottom lid 9 closed is installed. The lower end discharge port 43a of the hopper 43 of this supply device 42 is located on the upper surface of the loading section 5c.
The grains and lumps of cargo discharged from the lower end outlet 43a are spaced apart from each other so as to close the gap between the lower end outlet and the upper surface of the cargo compartment 5c.
The lower end discharge port 43a is sized so as to be able to supply cargo to the section between the inner track Q and the outer track R of the batcher 8, as shown in FIG. A scraping plate 44 for flattening the load supplied to the batcher 8 is provided at the lower end outlet 43a so as to be vertically adjustable by a support member attached to the lower end outlet 43a. As shown in FIG. 1, this scraper plate 44 is arranged in the loading compartment so that the cargo overflowing from the batcher 8 to the loading compartment 5c can be collected approximately at the center of the scraper plate 44 (on the circumference of the mounting pitch of the batcher 8). It is formed in a dogleg shape extending between the outer wall 5a and the inner wall 5b. Further, a gate plate 45 is provided on the lower end side of the hopper 43 so as to be able to enter and exit the hopper 43 to prevent cargo from being excessively supplied. The supply device 42 supplies the hopper 4 when the batcher 8 moves below the lower end discharge port 43a as the rotary table 5 rotates.
3 through the lower end discharge port 43a, a fixed volume of cargo such as powder is supplied.

Further, a slit 46 extending in the length direction is formed in the substantially central portion of the bottom surface of the pipeline 1 on the exit side of the conveying device 17. At the bottom position of the pipeline 1 where this slit 46 is formed,
A coupling release device 47 is installed that travels together with the capsules 2 to release the coupling device 2c between the capsules 2. This connection release device 47 is provided with an endless chain 51 in parallel to the slit 46 in the sprocket wheels 48, 49, 50, and a plurality of release cam members 52 are provided on this endless chain 51 to connect the connection device 2c of the capsule 2 to each other. Two sprocket wheels 48, 4 arranged horizontally and spaced apart from each other according to the length.
A dog (not shown) is provided between the slits 46 in the same direction as the slits 46. The endless chain 5
1 has its circumference set to be an integral multiple of the unit length between the connecting devices 2c of the capsule 2. Also,
The sprocket wheel 49 is connected to the rotating shaft of the sprocket wheel 19 of the conveying device 17 via a transmission belt 54, and the release cam member 5
2 runs at the same speed as capsule 2.

Note that 55 in the figure is a guide provided at the peripheral edge of the opening 3.

Next, the operation of the loading device having the above configuration will be explained.
First, the drive device 27 is operated. As a result, the rotary table 5 rotates in the direction of arrow A in FIG. 1, and the conveyance cart 22 of the conveyance device 17 travels in the direction of arrow B in the figure. When the rotary table 5 rotates, the batcher 8 moves accordingly, and the front side of the batcher 8 in the direction of movement is the lower end discharge port 43a of the supply device 42.
Comes down. Then, a certain amount of cargo such as powder is supplied from the hopper 43 of the supply device 42 through the lower end discharge port 43a, and the cargo is sequentially supplied from the front side to the rear side in the traveling direction of the batcher 8. The scraper plate 44 collects the cargo overflowing onto the loading section 5c into the batcher 8 and evenly levels the top of the cargo. Note that the gate plate 45 of the supply device 42 is adjusted in advance so that the cargo is not excessively supplied. The batcher 8 coming out from below the lower end outlet 43a of the supply device 42 is connected to the opening 3 of the pipeline 1.
It moves on top of. On the other hand, the cargo is not supplied from the supply device 42 because the loading section 5c, which does not have an opening on the upper surface of the batcher 8, is located below the lower end outlet 43a, so that the lower end outlet 43a is blocked by the upper surface of the loading section 5c. and stop. In addition, the capsule 2 that has traveled independently on the pipeline 1 is decelerated at a position in front of the entrance side of the conveying device 17, and then transferred to the connecting device 1.
After being successively connected to each other in a rear-end manner as shown in FIG. Note that the impact at the time of a rear-end collision is absorbed by the hydraulic shock absorber cylinder of the coupling device 2c. Although this collision force is transmitted to the capsule on the carrier vehicle 22, the carrier vehicle 22 prevents the capsule from moving forward suddenly. That is, from the transport vehicle 22 to the endless chain 18,
The rear collision force is transmitted to 18, but the endless chains 18, 18 are connected to the chain guides 15, 15, 1
6 and 16, the collision force is transferred to reducer 3 without coming off the sprocket wheel.
4 can be conveyed. Since this rear-end collision force only acts in the direction of reducing the driving force from the low speed side of the reducer to the high speed side (drive device side), the rotation does not suddenly increase. In addition, the wheels 26 of the capsule 2 on the transport vehicle 22 are in contact with the upper and inner surfaces of both sides of the pipeline 1, and this reaction force prevents the capsule 2 from coming off the transport vehicle 22, so There will be no hindrance. When the batcher 8 moves to a position substantially directly above the opening 3, the capsule 2 simultaneously moves to a position substantially directly below the opening 3. At this time, batcher 8 and capsule 2 are facing the same direction. Further, the cam 38 is pressed by the dog 39. Then, as shown in FIG. 5B, the lock lever 12 rotates in the direction of arrow D using the pin 11 as a fulcrum against the elastic force of the coil spring 14, and is removed from the free end 9c of one bottom cover piece 9a. . One of the bottom cover pieces 9a receives the weight of the cargo and rotates downwards using the pin 10a as a fulcrum, and the other bottom cover piece 9b similarly rotates downwards using the pin 10b as a fulcrum. , outlet 8 of batcher 8
c is opened. Then, the cargo falls from the batcher 8 through the opening 3 into the capsule 2 passing under the opening 3, and is loaded. The batcher 8 that has transferred the cargo to the capsule 2 moves away from the opening 3 and moves to the cam rollers 41a, 41b, 41c, 41.
Move sequentially on d. Then, as shown in FIG. 5C to FIG.
a, 9b, the bottom cover piece 9b is the cam roller 41a,
41b, 41c, and 41d.
When the bottom cover piece 9b is lifted, the link mechanism 13
As a result, the bottom cover piece 9a is also lifted up along with the bottom cover piece 9b. When the free end 9c of the bottom cover piece 9a comes into contact with the lock lever 12, the lock lever 12 is pushed away against the elasticity of the coil spring 14, and the free end 9c of the bottom cover piece 9a is supported by the lock lever 12 again. Free end 9d of bottom cover piece 9b
is supported by the bottom cover piece 9a, and the discharge port 8c is completely closed. When the discharge port 8c is completely closed, the batcher 8 is again moved to the lower end discharge port 43 of the supply device 42.
It moves below a. At this time, the other batchers 8 are placed above the opening 3 and the cam rollers 41a to 41.
It is moving above d. On the other hand, the capsule 2 is loaded with cargo and transported to the exit side of the transport device 17 by the transport cart 22 and travels through the pipeline 1 again under air pressure, but before that, the uncoupling device 47
The capsules run on top of each other, and the front and rear capsules are disconnected from each other and become independent. In this way, cargo is continuously loaded into the capsule 2 from the batcher 8.

Note that the speed transmission ratio of the power transmission system (reducers 31, 34, etc.) of the rotary table 5 and the conveyance device 17 is as follows:
If the batcher 8 and the capsule 2 are set in advance to be synchronized, even if the transport amount of the capsule 2 changes, simply increasing or decreasing the rotational speed of the drive device 27 accordingly will ensure continuous operation. Loading work can be done.

Further, in this embodiment, an example was shown in which the supply of cargo from the supply device 42 is started or stopped by the upper surface of the loading section 5c, but the batcher 8 may be moved below the lower end discharge port 43a. When this occurs, the gate plate 45 can detect this and supply or stop the cargo.

As explained above, according to the present invention, cargo can be loaded into the capsule while the capsule is traveling without being temporarily stopped. Therefore, loading time can be shortened, and capsule transportation efficiency can be significantly improved. Furthermore, since loading can be carried out continuously, the device can be made smaller. Furthermore, the bottom cover 9 of the batcher 8 is divided into two bottom cover pieces 9a and 9b, and these bottom cover pieces are interconnected by a link mechanism 13 to synchronize their opening and closing operations. Even if there is resistance to the opening and rotation of one bottom cover piece due to the location of the equipment, etc., it is possible to ensure that the cargo always falls correctly into the center of the capsule without being biased to one side. can. The bottom lid closing device that closes the top bottom lid 9 also has a simple structure, as it is only necessary to dispose cam rollers 41a to 41d at different angles of inclination at positions where the batcher 8 passes. The outlet can be closed by rotating the bottom cover piece upwards. Furthermore, the pair of left and right bottom cover pieces are pivotally supported by pins at the bottom of the batcher in the longitudinal direction, making them vertically elongated and shortening their width, so the hanging distance is short and the distance between the batcher and the loading area It is possible to reduce the impact force on the capsule etc. due to cargo and also to lower the height of the station.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention; FIG. 1 is a plan view, FIG. 2 is a partially cutaway side view, FIG. 3 is a sectional view taken along the line - - of FIG. A partially cutaway plan view of the rotary table, Fig. 5A~
FIG. 6 is a partial perspective view of the bottom cover of the batcher. 5...Rotary table, 8...Butcher, 8c
...Discharge port, 9a, 9b...Bottom cover piece, 9c, 9d
...Free end, 12... Lock lever, 13...
link mechanism, 27... drive device, 38... cam,
39...Dog, 41a, 41b, 41c, 41d
...Camrolla.

Claims (1)

[Claims] 1 A rotary table 5 that is rotated in the circumferential direction by a drive device 27, a batcher 8 provided on this rotary table 5, and a batcher 8 that is pivoted at the lower part of the batcher 8 in the longitudinal direction with pins 10a and 10b and that is vertically supported. Rotatably provided, mutually free ends 9
Match c and 9d and press button 8.
A pair of left and right bottom cover pieces 9a, 9 that close the outlet 8c of the
b, a link mechanism 13 that interconnects the pair of bottom cover pieces 9a, 9b and interlocks the opening and closing operations of the pair of bottom cover pieces 9a, 9b, and the rotary table 5.
At least one of the pair of bottom cover pieces 9a and 9b, which is disposed near the rotary table 5 and moves as the rotary table 5 rotates, is brought into contact with the other bottom cover piece 9b. a plurality of closing cams 41a that rotate the lid piece 9a upward to close the discharge port 8c;
41b, 41c, 41d, a lock lever 12 that locks the closed bottom cover pieces 9a, 9b to maintain the closed state, and operates this lock lever 12 to release the lock of the bottom cover pieces 9a, 9b. A loading device for cargo, etc., characterized in that it is equipped with opening means 38 and 39 for opening the cargo.