JPH0720105Y2 - Continuous feeder for the supplied material - Google Patents

Description

[Detailed Description of the Invention] (Industrial field of application) The present invention can secure a fed material such as, for example, mortar, concrete, which has a relatively poor fluidity, or a powdery substance having a powdery form. The present invention also relates to a continuous feeder for a fed object that can be smoothly fed.

(Prior Art) Conventionally, as a continuous feeder of this type, for example, Jitsuko Sho 58
There is a concrete delivery machine as described in Japanese Patent Publication No. 54978. This is a piston that slides in the cylinder, filling the accommodation space in the cylinder from the inlet with concrete,
And, the filled concrete is alternately delivered to the delivery port, and the cylindrical body is rotated so that the receiving port and the delivery port can be alternately communicated with the accommodation space.

Further, there is a viscous fluid kneading pump as described in Japanese Utility Model Laid-Open No. 56-5617. This consists of a gutter-shaped material kneading chamber, a material outlet pipe that is continuously provided below the kneading chamber and has a midway branch into two passages, and a pressure-feeding pump that is provided and interlocked with the two outlet passage portions of the same. In the material kneading chamber, a stirring blade is planted on a transmission shaft that is rotatably installed in the longitudinal direction of the material kneading chamber, and the material outlet pipe is provided with valve bodies at the branching portion and the merging portion, respectively. There is something.

(Problems to be solved by the invention) However, in the concrete delivery machine like the former,
The power to drive the piston and the power to rotate the cylinder must be provided separately, and because the concrete is delivered directly by the piston, the resistance when delivering the concrete is large. There was a problem that it was necessary to use something with a large output as the power for driving the piston.

Moreover, this is configured so that mortar or concrete having relatively good fluidity can be fed, and mortar or concrete having relatively poor fluidity or powdery material having a powdery form. Such a delivered material could not be delivered at all.

In addition, even in the latter viscous fluid kneading pressurizing machine such as the latter, since the means for pumping the material by advancing and retracting the piston head is adopted, the resistance when the material is sent out is large, and the power for driving this piston head is large. As a result, there were some difficulties such as having to use a fairly large output.

Moreover, there is also a drawback that it is necessary to provide a large number of check valves having a relatively complicated structure that operates in accordance with the advance / retreat of the piston head, and in particular, since the check valve is actuated by the advance / retreat of the piston head, the material is smoothly and continuously, In addition, there were some difficulties, such as strong transmission.

(Means for Solving the Problems) Therefore, the present invention solves the above-mentioned difficulties and the like, and is a continuous feeder in which a reliable and smooth feeding state can be expected regardless of what is to be fed. Specifically, the receiving port 2 communicating with the hopper 50 arranged above is arranged at the upper part, and the drum communicating part 8 is arranged at the drum 30 arranged below. A case 1 made of metal, which is provided with a delivery port 3 communicating therewith at the bottom, an upper partition plate 15 slidably mounted on the case 1 so that the receiving port 2 of the case 1 can be opened and closed, and the case 1 Lower partition plate 16 slidably mounted on the case 1 so as to open and close the delivery port 3 of the same, and a rubber tube housing portion 7 between the receiving port 2 and the delivery port 3.
And a suitable elastic rubber tube 10 installed inside, and a rubber tube accommodating portion 7 is formed to be larger than the receiving port 2 and a drum communicating portion 8 is formed to be larger than the delivery port 3 to form a feeding device S1. Upper partition plate 15 and lower partition plate of Case 1
An inlet port 5 and an outlet port 6 are formed so as to communicate with a space section delimited by 16 and a switching valve such as a three-way cock or a solenoid valve is formed in the inlet port 5 and the outlet port 6. The rubber of the case 1 provided between the receiving port 2 and the sending port 3 is configured so that the compressed air can be fed into the case 1 and the compressed air can be discharged from the case 1 by connecting them. In the inner peripheral wall surface portion of the cylinder housing portion 7, there are formed elongated escape grooves 4 for the rubber cylinder, the longitudinal direction of which is parallel to the cylinder center direction of the rubber cylinder housing portion 7, at predetermined intervals around the peripheral wall. A plurality of plates are provided for each, and a plate is slidably inserted into a notch hole formed in a communicating portion between the hopper 50 and the receiving port 2, and the plate is slidably moved forward and backward. It is formed so that the opening area in the communicating portion can be adjusted arbitrarily, and is connected to the inside of the drum 30 equipped with the rotating blade body 31. A means is adopted in which the supply target is supplied from the discharge port 32 by the continuously supplied compressed air.

(Action) Then, the upper partition plate 15 and the lower partition plate 16
Is slidably mounted on the metal case 1 and opens and closes the inlet 2 and the outlet 3 of the case 1 by their respective operations. Then, compressed air is sent into the case 1 through the air inlet 5, or compressed air is discharged from the case 1 through the exhaust port 6.

Then, the material to be fed is fed from the hopper 50 arranged above through the receiving opening 2 into the rubber cylinder housing portion 7 formed larger than the receiving opening 2 without being clogged, and further, the rubber cylinder. From the inside of the accommodating portion 7 through the outlet 3 and the drum communicating portion 8 to the inside of the drum 30 arranged below without passing through the drum communicating portion 8 which is larger than the outlet 3. Moreover, the material to be fed is agitated and kneaded by the rotary blade body 31, and is fed from the discharge port 32 by the compressed air continuously fed into the drum 30.

Further, the rubber cylinder 10 is elastically deformed such that the compressed air is sent into the case 1 using the air inlet 5 and slightly bulges to the outer side through the escape groove 4 for the rubber cylinder. The compressed air is discharged from the inside of the case 1 using the mouth 6 to elastically return.

Further, the opening area in the communicating portion between the hopper 50 and the receiving port 2 is determined by the advancing / retreating action of the appropriate plate slidably inserted into the notch hole formed in the communicating portion between the hopper 50 and the receiving port 2. Adjusted arbitrarily.

(Example) Hereinafter, the present invention will be described based on illustrated examples.

In the figure, S is an appropriate feed such as mortar, concrete having relatively poor fluidity, or powdery material having a powdery form (for example, including cement, wheat flour, and other edible powdery materials). A continuous feeder capable of surely feeding an object is shown. This continuous feeder S has a receiving port 2 communicating with a hopper 50 arranged above, arranged at the upper part, and arranged at the lower part. Metal case 1 having a delivery port 3 communicating with the drum 30 disposed at the bottom, and a metal upper partition plate slidably mounted on the case 1 so that the receiving port 2 can be opened and closed.
15, a metal lower partition plate 16 slidably attached to the case 1 so that the delivery port 3 can be opened and closed, and an appropriate plate operating device 40 for operating the upper partition plate 15 and the lower partition plate 16, respectively. A rubber tube 10 having an appropriate elasticity and fitted inside so as to come into close contact with the inner peripheral wall portion of the rubber tube housing 7 of the case 1 between the receiving port 2 and the sending port 3
And the delivery of compressed air into the case 1,
Alternatively, a feeder S1 capable of freely discharging compressed air from the case 1 is configured, and the delivery port 3 portion of the case 1 of the feeder S1 is connected to the drum 30 provided with the rotary vane body 31 in a drum communication. By the compressed air continuously fed through the portion 8, the feed fed from the receiving port 2 into the case 1 is fed into the drum 30 from the feeding port 3 and continuously supplied into the drum 30. The material to be fed in the drum 30 is configured to be fed from the discharge port 32.

The case 1 is mounted on a base frame that is appropriately formed of a mold material, a plate material, or any other suitable material so that the tube core of the rubber tube housing portion 7 is substantially aligned with the vertical direction. In the inner peripheral wall surface portion of the rubber tube 7, there is an elongated groove-like relief groove 4 for a rubber cylinder whose longitudinal direction is parallel to the cylinder center direction of the rubber cylinder accommodating portion 7.
Are provided around the peripheral wall at predetermined intervals. An upper partition plate 15 is disposed in the receiving port 2 portion of the upper part of the case 1 so as to be slidable in a direction substantially orthogonal to the cylinder center of the rubber tube housing portion 7, and a delivery port of the lower part of the case 1 is provided. A lower partition plate 16 is disposed in the three portions so as to be slidable in a direction substantially orthogonal to the cylinder center of the rubber cylinder accommodating portion 7. Further, the case 1 is formed with an inlet port 5 and an outlet port 6, respectively.
Are configured to communicate with a space portion partitioned by the upper partition plate 15 and the lower partition plate 16. Moreover, for example, a switching valve such as a three-way cock, a solenoid valve, or the like is connected to the inlet 5 and the outlet 6, and the opening / closing operation of the inlet 5 and the outlet 6 is appropriately controlled to allow the inside of the case 1 to be closed. The compressed air can be sent to and discharged from the case 1 arbitrarily.

By the way, in order to be able to smoothly feed the fed materials from the receiving port 2 into the case 1 and from the feeding port 3 into the drum 30,
The rubber tube accommodating portion 7 is formed larger than the receiving port 2, and the drum communicating portion 8 is formed larger than the delivery port 3.

In the figure, reference numeral 9 is an input amount adjusting means arranged in a communicating portion between the hopper 50 and the receiving port 2. The input amount adjusting means 9 is such that the material to be fed in the hopper 50 is transferred from the receiving port 2 into the case 1. It is configured such that the amount of the supplied substance per unit time can be adjusted when it is fed to the hopper 50. Specifically, the notch hole formed in the communicating portion between the hopper 50 and the receiving port 2. A plate is slidably inserted in the plate, and the opening area at the communicating portion between the hopper 50 and the receiving port 2 can be arbitrarily adjusted by moving the plate back and forth.

Reference numeral 17 in the drawing denotes a partition plate receiver horizontally arranged in the case 1. The partition plate receiver 17 can reliably prevent the upper partition plate 15 and the lower partition plate 16 from swinging downward. In addition, the guide projections 15a projecting on the back surface of the upper partition plate 15 and the guide projections 16a projecting on the back surface of the lower partition plate 16 have a pair of partition plate receivers 17 arranged in parallel. The upper partition plate 15 and the lower partition plate 16 are prevented from wobbling in the left-right direction in the horizontal plane by coming into contact with the inner side of the.

Reference numeral 18 in the figure is provided inside the inlet 2 and the outlet 3 of the case 1, respectively, and contacts the upper surfaces of the upper partition plate 15 and the lower partition plate 16 to receive the inlet 2 by the upper partition plate 15 and the lower partition plate 16. It is a packing for slides provided to make the closed state of the delivery port 3 and the delivery port 3 more reliable. Reference numeral 19 in the drawing is for ensuring that the inside and outside of the case 1 at the sliding contact portion are reliably shut off when the upper partition plate 15 and the lower partition plate 16 slide forward and backward with respect to the case 1. It is a packing provided.

The rubber cylinder 10 is formed of a suitable rubber material (or a suitable synthetic resin material) or the like into a thick-walled cylindrical shape having appropriate elasticity, and in some cases, a reinforcing core material may be appropriately embedded therein. For example, as a reinforcement, a wire made of metal (or a wire made of synthetic resin, etc.) may be provided in an embedded manner.

The drum 30 appropriately rotates and agitates and kneads the fed material fed from the delivery port 3 of the case 1 by rotating the rotating blade body 31 arranged laterally, and discharges the fed material. Further, so as to be sent out from the outlet 32, appropriately high pressure by compressed air or the like is constantly applied to feed the supply target from the feed / discharge port 32, and via a transfer hose connected to the discharge port 32. It can be transferred to a desired place.

In the illustrated example, the plate operating device 40 is composed of an air cylinder 41, and the upper partition plate 15 and the lower partition plate 16 are connected to the tip of the rod 42 of this air cylinder 41, respectively, and the forward / backward movement of the rod 42 is performed. Due to
The upper partition plate 15 and the lower partition plate 16 can be slid. The plate actuating device 40 uses a motor and a cam instead of the air cylinder 41 that operates using air pressure, a device that uses a rack and a gear, or operates using hydraulic pressure. It may be a hydraulic device that operates, or can be set freely as needed.

The hopper 50 has a rotatable vane body 51 therein.
The rotary blade body 51 is rotated by a drive motor so that the material to be fed put into the hopper 50 can be forcibly fed into the receiving port 2.
That is, even if the material to be fed is a mortar, concrete, or a powdery material having a powdery form that does not move only by gravity, it can be reliably and securely transferred from the receiving port 2 into the case 1. It is designed so that it can be fed smoothly.

Further, it is also possible to configure a continuous feeder S in which a plurality (two in the illustrated example) of the feeding devices S1 as described above are connected to the drum 30. That is, the timing for feeding the fed object from the delivery port 3 of each feeding device S1 into the drum 30 is set to be staggered, and the compressed air continuously fed into the drum 30 causes the drum 30 to move. The material to be fed can be continuously fed from the discharge port 32 without interruption.

In addition, the specific configuration of the continuous feeder S, the specific configuration of the feeder S1, the number, the specific configuration of the case 1, the shape, the dimensions, the material, the specific configuration of the charging amount adjusting means 9, and the rubber tube 10. Concrete configuration,
Shape, material, upper partition plate 15 and lower partition plate
16 concrete shape, size, number, material, location, drum 30
The specific configuration, shape, dimensions, specific configuration, number, etc. of the plate actuating device 40 are not limited to those shown in the drawings, and can be freely set as appropriate.

The present invention is constructed as described above. Next, to describe an example of its use, first, the plate actuating device 40 is operated to retract the upper partition plate 15 to open the receiving opening 2 in the upper part of the case 1. Using gravity and rotation of the rotary blade body 51, the material to be fed in the hopper 50 is fed into the case 1 from the receiving port 2. At this time, the feeding amount adjusting means 9 appropriately adjusts the feeding amount, and the lower partition plate 16 is attached to the case 1.
The delivery port 3 is closed. Next, when a predetermined amount of the material to be fed is sent into the case 1, the plate operating device 40
Is activated to move the upper partition plate 15 forward to close the receiving port 2 in the upper part of the case 1, open the switching valve, and inject the inlet 5
Compressed air is sent into the case 1 from. And case 1
When the pressure inside the drum 30 becomes substantially equal to the pressure inside the drum 30, the plate actuator 40 is operated to activate the lower partition plate 16
Back to open the delivery port 3 at the bottom of the case 1,
The material to be fed is fed from the inside of the case 1 into the drum 30 through the drum communication portion 8 by utilizing gravity or the like. Then, the material to be fed sent into the drum 30 is agitated and kneaded by the rotary blade body 31, and is sent from the discharge port 32 to the outside of the drum 30 by the compressed air continuously supplied into the drum 30. To do. At this time, the plate operating device 40 is operated to operate the lower partition plate.
16 is advanced and the delivery port 3 at the bottom of the case 1 is closed. Further, the switching valve is opened to discharge the compressed air in the case 1 from the exhaust port 6, and the hopper 50 and the pressure in the case 1 are discharged.
After substantially equalizing the internal pressure (atmospheric pressure), the plate operating device 40 is operated to retract the upper partition plate 15 to open the receiving port 2 in the upper part of the case 1, and by repeating these sequentially, Send the shipment.

By the way, when the compressed air is sent into the case 1, a part of the rubber cylinder 10 is elastically deformed so as to bulge slightly to the outer side by utilizing the relief groove 4 for the rubber cylinder, and the inside of the case 1 When the compressed air is discharged, the compressed air is elastically restored by its elastic restoring force. At this time, the substance to be fed attached to the inner peripheral surface of the rubber cylinder 10 is automatically separated by gravity or the like so as to be separated from the inner peripheral surface of the rubber cylinder 10.

(Effect of the Invention) Therefore, in the continuous feeder S of the present invention, the receiving port 2 communicating with the hopper 50 arranged above is arranged at the upper part, and the drum communicating portion 8 is provided to the drum 30 arranged below. A metal case 1 having a delivery port 3 which is communicated via a lower part, a top partition plate 15 slidably mounted on the case 1 so that a receiving port 2 of the case 1 can be opened and closed, and a case 1. A lower partition plate 16 slidably mounted on the case 1 so as to open and close the delivery port 3 of 1 and an appropriate elastic rubber housed in a rubber tube housing 7 between the receiving port 2 and the delivery port 3. The upper partition plate 15 of the case 1 is configured by including the cylinder 10 and forming the rubber cylinder accommodating portion 7 larger than the inlet 2 and the drum communicating portion 8 larger than the outlet 3. And the lower partition plate 16 so as to communicate with the space that is divided And an exhaust port 6 are formed respectively, and a switching valve such as a three-way cock or a solenoid valve is connected to the insufflation port 5 and the exhaust port 6 to feed compressed air into the case 1 and the case 1. The rubber cylinder accommodating portion 7 of the case 1 which is provided between the inlet 2 and the outlet 3 is configured so that the compressed air can be discharged arbitrarily from the inside, and the longitudinal direction is the rubber cylinder. A plurality of elongated escape grooves 4 for the rubber cylinder, which are parallel to the cylinder center direction of the accommodating portion 7, are provided around the peripheral wall at predetermined intervals, and a communication portion between the hopper 50 and the inlet 2. A plate is slidably inserted into a notch hole formed in the plate, and by appropriately moving the plate forward and backward, the opening area in the communicating portion between the hopper 50 and the receiving port 2 can be arbitrarily adjusted and rotated. The delivered material is discharged by the compressed air that is continuously supplied into the drum 30 equipped with the blade body 31. Since it is configured to be delivered from 32, it is possible to reliably and smoothly deliver the delivered object such as mortar, concrete, or powdery material that has a powdery form with relatively poor fluidity. In addition, the structure of the continuous feeding device S itself is extremely simple, and it is possible to configure it in a small size and compact, and the continuous feeding device S itself can be configured robustly and firmly, and the operating state is reliable and smooth. Therefore, it is possible to provide a continuous feeding device S that is easy to maintain, has a high durability, and is economical.

Further, since the rubber tube housing portion 7 is formed larger than the receiving port 2 and the drum communication portion 8 is formed larger than the delivery port 3, the fed material is not clogged from the hopper 50 through the receiving port 2 and the rubber is not blocked. It is smoothly fed into the tube housing portion 7, and further, from the inside of the rubber tube housing portion 7 to the delivery port 3 and the drum communication portion 8.
It will be smoothly fed into the drum 30 without being clogged through the mortar, which has relatively poor fluidity, concrete, or even a substance to be fed such as a powdery substance having a powdery form. It becomes the continuous feeder S of the fed object which can expect a more reliable and smooth feeding state.

Then, since the fed object is fed from the discharge port 32 by the compressed air continuously supplied into the drum 30 provided with the rotating blade body 31, the fed object is rotated in the drum 30. The blade body 31 can surely stir and knead, and the stir and kneaded feed target can be reliably fed to the discharge port 32. Further, the feed target is compressed air from the discharge port 32 to the drum 30.
It will be possible to reliably send it to the outside.

In particular, the air inlet 5 is provided so as to communicate with the space portion of the case 1 which is partitioned by the upper partition plate 15 and the lower partition plate 16.
And an exhaust port 6 are respectively formed, and the air injection port 5 and the exhaust port 6 are formed.
Is connected to a switching valve such as a three-way cock or a solenoid valve,
Since the compressed air can be fed into the case 1 and the compressed air can be discharged from the case 1, the compressed air is fed into the case 1 from the air inlet 5, After the pressure and the pressure in the drum 30 are substantially equalized, the lower partition plate 16 is retracted to open the delivery port 3, and the material in the case 1 is fed to the drum 30 by using gravity or the like.
You will be able to send it smoothly inside. Ie drum
Since it is possible to feed the material to be fed from the case 1 into the drum 30 without lowering the pressure due to the compressed air continuously fed to the 30 (in addition, to the compressed air continuously fed into the drum 30, Compressed air sent into the case 1 from the air inlet 5 is also added and can be sent), and the discharge port 32 of the drum 30
Drums to be fed from a stable, continuous and powerful drum
30 can be sent outside.

Further, a case 1 provided between the receiving port 2 and the sending port 3
In the inner peripheral wall surface portion of the rubber cylinder accommodating portion 7, there is formed a long hole-shaped escape groove 4 for the rubber cylinder, the longitudinal direction of which is parallel to the cylinder center direction of the rubber cylinder accommodating portion 7, around the peripheral wall. Since a plurality of circumferences are provided at predetermined intervals, when compressed air is fed into the case 1 through the air inlet 5, the rubber cylinder 10 uses the escape groove 4 for the rubber cylinder to form the outer shell slightly. When the compressed air in the case 1 is discharged through the exhaust port 6 by elastically deforming so as to bulge, the rubber cylinder escape groove 4 is used to cause the elasticity of the bulge to slightly increase. Due to the restoring force, it will elastically return,
The object to be fed attached to the inner peripheral surface of the rubber tube 10 is easily peeled off, and the object to be fed can be automatically dropped due to gravity or the like. It is possible to eliminate the fear that the adherence to the inner peripheral surface is hardened and the feeding of the fed object is hindered by gravity.

Then, a plate is slidably inserted into a notch hole formed in a communication part between the hopper 50 and the receiving port 2, and the advancing and retracting motion of the plate appropriately moves the communicating part between the hopper 50 and the receiving port 2. Since the opening area is formed so that it can be adjusted arbitrarily, when the fed object in the hopper 50 is fed from the receiving port 2 into the case 1, the passing amount of the fed object per unit time can be easily adjusted. In addition to being able to do so, its configuration is extremely simple, it is hard to break down, and it is easy to handle.

[Brief description of drawings]

1 is a partially cutaway front view, FIG. 2 is a partially cutaway side view, FIG. 3 is a partially omitted plan sectional view, and FIG. 4 is a partially flat end view. is there. S ... Continuous feeder, S1 ... Feeder, 1 ... Case, 2 ... Inlet, 3 ... Outlet, 4 ... Escape groove for rubber cylinder, 5 ... Air inlet, 6
... Exhaust port, 7 ... rubber cylinder housing part, 8 ... drum communication part, 9 ...
Input amount adjusting means, 10 ... rubber cylinder, 15 ... upper partition plate,
15a ... Guide protrusion, 16 ... Lower partition plate, 16a ... Guide protrusion, 17 ... Partition plate receiver, 18 ... Packing, 19 ... Packing, 30 ... Drum, 31 ... Rotating blade body, 32 ... Discharge port, 40 ... Plate actuating device , 41 ... Air cylinder, 42 ... Rod,
50 ... Hopper, 51 ... Rotating blade body.

Claims (1)

[Scope of utility model registration request] 1. A receiving port communicating with a hopper disposed above is disposed in an upper part, and a delivery port communicating with a drum disposed in a lower part through a drum communicating portion is disposed in a lower part. A metal case, an upper partition plate that is slidably attached to the case so that the case inlet can be opened and closed, and a lower partition that is slidably attached to the case so that the case outlet can be opened and closed. A plate, and an appropriate elastic rubber tube that is installed in the rubber tube housing between the inlet and the outlet,
A rubber tube housing is formed larger than the receiving port, and a drum communication part is formed larger than the sending port to form a feeding device, which communicates with the space part partitioned by the upper partition plate and the lower partition plate of the case. To form compressed air into the case and to connect compressed air into the case by connecting a switching valve such as a three-way cock or a solenoid valve to the gas inlet and exhaust port. It is configured so that compressed air can be discharged arbitrarily from the case, and the inner peripheral wall surface portion of the rubber tube housing portion of the case provided between the inlet and the outlet has a longitudinal direction of the rubber tube housing portion. A plurality of elongated rubber groove-shaped relief grooves for the rubber cylinder, which are parallel to the cylinder center direction, are provided at predetermined intervals around the peripheral wall, and are formed in the notch hole formed in the communication portion between the hopper and the receiving port. The plate is slidably inserted, and the plate is moved back and forth. Thus, it formed to allow arbitrarily regulate in opening area communicating portion between the hopper and the receiving port,
A continuous feeder for a fed object, characterized in that the fed object is fed from a discharge port by compressed air continuously supplied into a drum provided with a rotating blade body.