JP2008280161A - Belt conveyor control device and computer program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a control device for controlling the slackening and elongation of a belt caused by the movement of a belt conveyor. <P>SOLUTION: For a head pulley 45 moved to a desired position, a movement position set value is inputted and stored in a storage part 53. A rotating speed calculating means calculates the rotating speed of a motor driven winch drum 81 from the movement position set value stored in the storage part 53 and circumference data for the motor driven winch drum 81. Then, a winch unit 80 moves a rotating shaft 45b along rail members 41a, 41b with the wire rope 83 according to the rotating speed. By the movement, a carrying belt 18 bridged between the head pulley 45 and a tale pulley 17 is slackened or elongated and the carrying belt 18 is stored or discharged in or from a carrying belt storage mechanism 90. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a technology of a belt conveyor, and more particularly to a technology capable of controlling belt slack and belt extension generated when a head pulley is moved.

  The intermediate discharge method for belt conveyors that continuously transport loose items such as ore and coal in a certain direction includes a tripper method that removes the materials in the middle of the belt conveyor, and a rubber belt on the running belt surface. Or a scraper method (swash plate method) that presses the steel plate to crush the material to be transported and unloads it to the side (one side) of the belt, or a V-shaped scraper that unloads the transported material on both sides of the belt. There is a plate method (scraper method). Furthermore, there is a belt conveyor provided with a coal distribution machine for using the left and right sides as a coal storage center around the belt conveyor. This is known as a belt conveyor main body moving type having a tripper and a shuttle conveyor.

  Here, Patent Document 1 is extracted as a technique related to the present invention. This technology includes a traveling means capable of moving the entire apparatus, and a belt conveyor mounted on the traveling means, and the belt conveyor is provided to be slidable in the length direction with respect to the traveling means. This is a technology that enables the entire belt conveyor to move. Thereby, it is possible to flexibly cope with various construction situations at various construction sites.

JP 2002-211736 A

On the other hand, the above-described technique has the following problems.
First, in the tripper method, it is necessary to increase the installation space (especially above) of the belt conveyor because of the discharge position of the transported goods.
Further, in the scraper method and the swash plate method, since the scraper is placed on the belt, it is difficult to unload at an arbitrary position and the unloading cannot be completely discharged like a tripper.
In addition, friction caused by the transported material was generated between the scraper and the belt, and the risk of belt wear and damage was high.

Furthermore, in the belt conveyor main body moving type as shown in Patent Document 1, since the entire belt conveyor main body is moved, a moving device for the belt conveyor main body, a current collecting device used for moving the motor, and the like are required for the movement. This increases the weight of the entire belt conveyor, and further increases the size of the frame that supports them due to dynamic loads.
In addition, because of the mechanism, in order to efficiently load cargo, only center-inverted reversible transportation is realized, so another means for transporting the transportation material to the center of the conveyor is necessary.

  In order to compensate for the disadvantages of the belt conveyor main body moving type, a head pulley moving type (conveying position variable) belt conveyor that moves only the head pulley is also conceivable. However, even in this case, the belt is loosened or stretched depending on the moving direction of the head pulley. That is, in addition to the drawbacks of the prior art described above, it has been difficult to develop a belt conveyor having a function of easily controlling belt slack and belt extension.

Further, as a problem in controlling the position of the belt conveyor, it is inevitable in terms of the structure that the belt is displaced from the head pulley (rotating shaft). For example, when coal or the like is dropped on the transport belt, the transport belt is displaced from the head pulley by the impact of the drop. If it is fixed to the head pulley so that the transport belt does not shift, it is dangerous that it does not shift. That is ~
Therefore, it is unavoidable to generate a deviation from the viewpoint of the structure of the belt conveyor and safety, but in order to control the position of the belt conveyor, the deviation has been a big problem.

The problem to be solved by the present invention is to provide a technique for easily controlling belt slack, belt extension, and belt deviation caused by movement of a transport position variable belt conveyor.
It is an object of the present invention to provide a belt conveyor control device that easily controls belt slack, belt expansion, and belt shift caused by movement of a transfer position variable belt conveyor.
An object of the invention described in claims 10 to 18 is to provide a belt conveyor control device for easily controlling belt slack, belt extension and belt shift caused by movement of a conveyor belt with variable transfer position.

(Claim 1)
According to the first aspect of the present invention, there is provided a transport position variable belt conveyor (10) capable of transporting a transported object from a starting point position serving as a transporting material inlet to an end point position located downstream, and changing the end point position. It relates to a belt conveyor control device to be controlled.
A tail pulley (17) that can be rotated by a horizontal rotating shaft in the vicinity of the starting point position, and a rotating shaft (45b) that can be rotated by a horizontal rotating shaft (45b) at the end point position and the position of the rotating shaft (45b) is changed. A possible head pulley (45), a conveyor belt (18) stretched over the head pulley (45) and the tail pulley (17), and a rotating shaft (45b) of the head pulley (45) Rail member (41a, 41b) that forms a movement locus of the rotating shaft (45b), head pulley moving means for moving the rotating shaft (45b) along the rail member (41a, 41b), and the head A conveyor belt storage mechanism (90) that stores or unloads the conveyor belt (18) that is loosened or stretched by movement of the pulley moving means and that maintains the tension of the conveyor belt (18), and includes the conveyor belt ( 18) Transported by A plurality of belt support means (60) for supporting the weight of the object and the weight and tension of the conveying belt (18) are provided along the conveying path, and the belt is moved when the head pulley moving means (43, 44) is moved. The belt support means (60) corresponding to the blocking position is provided with a retracting mechanism (61, 62, 64) that retracts to a position that does not interfere with the movement, and the retracting mechanism is stretched along the transport direction and retracted ( 61, 62, 64) a main body frame (11) for fixing, and a curvilinear carrier stand (62a, 62b), a carrier roller (66) that supports the conveyor belt (18) from below at one end of the carrier stand (62a, 62b), and the carrier stand (62a, 62b) at the opposite end of the carrier roller (66) ) And the main body frame (11), the carrier stand (62a, 62b) A rotation control member (64a, 64b) for controlling the rotation of the
The belt conveyor control device includes a position calculation database that stores the position data of the belt conveyor body and the circumferential data of the electric winch drum (81) that controls the head pulley by transporting the transported goods while holding the conveyor belt. , A moving position setting input means for setting the head pulley to a desired moving position on the belt conveyor, and a position of the belt conveyor main body in which the moving position setting value input by the moving position setting input means is stored in the position calculation database. Moving position setting value determining means for determining whether or not the data corresponds to the data, and when it is determined that the moving position setting value is within the position data range of the belt conveyor body, the input moving position setting value is The head pulley is moved to the movement position set by the movement position setting value storage means to be stored and the movement position setting input means. Therefore, based on the movement position setting value stored in the movement position setting value storage means and the circumference data of the electric winch drum (81) stored in the position calculation database, the electric winch drum (81) Rotation speed calculation means for calculating the rotation speed, and rotation speed reflection means for reflecting the rotation speed of the electric winch drum (81) calculated by the rotation speed calculation means to the wire rope (83) that pulls the head pulley (45). And a belt conveyor control device.

(Glossary)
For example, when the electric winch drum is rotated 10 times and the moving distance of the head pulley is “1 m”, the “rotational speed calculating means” is the rotational speed necessary for moving the head pulley “10 m”. Means “100 revolutions”. The moving distance can be arbitrarily set, and may be set to “1 m” unit, “5 m” unit, “10 m” unit, “50 cm” unit, or the like.
As the “rotation control member”, a leaf spring, rubber, or the like can be adopted in addition to the illustrated coil spring. It is also possible to employ air cylinders, hydraulic cylinders, electric cylinders, magnet application devices, weights, and the like. Alternatively, it is also possible to employ a torsion spring centering on the lifting hinge (63), or a torque generator utilizing hydraulic pressure, pneumatic pressure, or electric power.

(Function)
The tail pulley (17) located at the start point position, the head pulley (45) located at the end point position, and the tail belt (17) and the conveyor belt (18) stretched over the head pulley (45) rotate. Thus, the transported object can be transported from the start point position to the end point position located downstream.
The rail members (41a, 41b) support the rotating shaft (45b) of the head pulley (45) to form a movement locus trajectory. The head pulley moving means moves the rotating shaft (45b) along the rail members (41a, 41b). By this movement, the conveyor belt (18) stretched over the head pulley (45) and the tail pulley (17) is loosened or stretched, but if it is loosened, the conveyor belt (18) is conveyed to the conveyor belt storage mechanism (90). ) Is stored and extended, the conveyor belt (18) is discharged from the conveyor belt storage mechanism (90).
With the configuration described above, when the transported object is transported on the transport belt (18), the position of the head pulley (45) (the end point position of the transported object) can be changed. Further, since only the head pulley (45) is formed to move, it contributes to space saving of the entire belt conveyor. In addition, since the package is removed from the tip of the head pulley (45), it contributes to the complete discharge of the package.
Also, a plurality of belt support means (60) are installed along the transport path to support the transport belt (18) and the transported goods. When the head pulley moving means (43, 44) and the head pulley (45) change the transport distance, the retracting mechanism (61, 62, 64) of the belt support means (60) is replaced with the head pulley moving means (43, 44). 44) and the head pulley (45) are retracted to a position that does not interfere with the movement.
Therefore, the belt support means (60) has a function of supporting the transport belt (18) and the transported object, and secures a moving path of the head pulley moving means (43, 44) and the head pulley (45). Can do.
Further, the main body frame (11) is extended along the conveying direction to fix the retracting mechanism (61, 62, 64), and for the main body frame (11), a curvilinear carrier stand (62a, 62b) Is pivotally supported in a direction that obstructs the conveying direction. At one end of the carrier stand (62a, 62b), a carrier roller (66) is provided to support the conveyor belt (18) from below. A rotation control member (64a, 62b) for controlling the rotation of the carrier stand (62a, 62b) is provided on the carrier stand (62a, 62b) and the main body frame (11) at the opposite end to the carrier roller (66). 64b).
The evacuation mechanism operates as follows. That is, the carrier stand (62a, 62b) is positioned so as to block the transport direction by the rotation control member (64a, 64b). At this time, the carrier roller (66) supports the conveyor belt (18) from below. Subsequently, it is rotated against the rotation control members (64a, 64b), and is retracted from the moving direction of the head pulley. Then, the carrier roller (66) retracts the conveying belt (18) from below and does not interfere with the head pulley moving means (43, 44).
In addition, although it is limited that the retracting mechanism is configured as “a pair” in other claims, it may not be a pair, and may be only one side as long as it functions as a retracting mechanism. That is, the carrier stands (62a, 62b) need not be staggered as long as they act without being staggered.

The transport position variable belt conveyor operates as follows.
The rail member (41a, 41b) supports the rotating shaft (45b) of the head pulley (45) to form a movement trajectory. The head pulley moving means (43, 44) moves the rotating shaft (45b) along the rail members (41a, 41b). By this movement, the conveyor belt (18) stretched over the head pulley (45) and the tail pulley (17) is loosened or stretched, but if it is loosened, the conveyor belt (18) is conveyed to the conveyor belt storage mechanism (90). ) Is stored and extended, the transport belt (18) is unloaded from the transport belt storage mechanism (90). Further, the transport belt storage mechanism (90) has a transport belt storage section (91), which is a space for storing the transport belt (18), positioned upstream of the head pulley (45).
Accordingly, it is possible to easily control the belt slack and belt extension caused by the movement of the belt conveyor when the transportation objects on the conveyor belt (18) are continuously loaded.

Further, the belt conveyor control device (50) holds the position data of the belt conveyor body and the conveyor belt (18), conveys the transported goods, and controls the circumference of the electric winch drum (81) that controls the head pulley (45). Data is stored in advance in the position calculation database.
The operator of the belt conveyor sets the head pulley (45) as a desired movement position on the belt conveyor using the movement position setting input means. The moving position setting value determining means determines whether or not the moving position setting value input by the moving position setting input means corresponds to the position data of the belt conveyor main body stored in the position calculation database. .
If it is determined that the moving position set value is within the position data range of the belt conveyor body, the input moving position set value is stored in the moving position set value storage means. In order to move the head pulley (45) to the movement position set by the movement position setting input means, the movement position setting value stored in the movement position setting value storage means and the electric winch drum stored in the position calculation database Based on the circumference data of (81), the rotational speed calculation means calculates the rotational speed of the electric winch drum (81). The rotation number reflecting means reflects the rotation number of the electric winch drum (81) on the wire rope (83) that pulls the head pulley (45). As described above, rational control of the belt conveyor is achieved.

(Claim 2)
According to the second aspect of the present invention, there is provided a transport position variable belt conveyor (10B) capable of transporting a transported object from a position of a starting point that is a transporting object inlet to an end point position located downstream, and changing the end point position. It relates to a belt conveyor control device to be controlled.
A tail pulley (17) that can be rotated by a horizontal rotating shaft in the vicinity of the starting point position, and a rotating shaft (45b) that can be rotated by a horizontal rotating shaft (45b) at the end point position and the position of the rotating shaft (45b) is changed. A possible head pulley (45), a conveyor belt (18) stretched over the head pulley (45) and the tail pulley (17), and a rotating shaft (45b) of the head pulley (45) Rail member (41a, 41b) that forms a movement locus of the rotating shaft (45b), head pulley moving means for moving the rotating shaft (45b) along the rail member (41a, 41b), and the head A conveyor belt storage mechanism (90) that stores or unloads the conveyor belt (18) that is loosened or stretched by movement of the pulley moving means and that maintains the tension of the conveyor belt (18), and includes the conveyor belt ( 18) Transported by A plurality of belt support means (60) for supporting the weight of the object and the weight and tension of the conveying belt (18) are provided along the conveying path, and the belt is moved when the head pulley moving means (43, 44) is moved. The belt support means (60) corresponding to the blocking position is provided with a retracting mechanism (31, 32, 34, 35) for retracting to a position that does not interfere with the movement,
The retracting mechanism (31, 32, 34, 35) includes a main body frame (11a) for fixing the retracting mechanism (31, 32, 34, 35), which is set up perpendicular to the conveying direction, and the main body frame (11a ) And a hinge (35a, 35b) provided with a rotation control member (34a, 34b) for assisting the opening / closing operation of the retracting mechanism (31, 32, 34, 35), and the hinge ( 35a, 35b) are connected to hinge arms (31a, 31b) and the hinge arms (31a, 31b), and are pivotally supported so as to be able to rotate in a direction that obstructs the conveying direction of the conveying belt (18). A curvilinear carrier stand (32a, 32b) and a plurality of carrier rollers (36) for supporting the conveyor belt (18) from below at one end of the carrier stand (32a, 32b), and the hinge arm ( The axial direction of the hinges (35a, 35b) in 31a, 31b) is a direction that opens and closes in parallel with the traveling direction of the conveyor belt (18) when passing through the head pulley (45). A pair of carrier stands, and the pair of carrier stands (32a, 32b) are arranged in a staggered manner in the top view at a predetermined distance from each other, and a lock mechanism for fixing the carrier stands (32a, 32b) to each other (70)
The belt conveyor control device includes a position calculation database that stores the position data of the belt conveyor body and the circumferential data of the electric winch drum (81) that controls the head pulley by transporting the transported goods while holding the conveyor belt. , A moving position setting input means for setting the head pulley to a desired moving position on the belt conveyor, and a position of the belt conveyor main body in which the moving position setting value input by the moving position setting input means is stored in the position calculation database. Moving position setting value determining means for determining whether or not the data corresponds to the data, and when it is determined that the moving position setting value is within the position data range of the belt conveyor body, the input moving position setting value is The head pulley is moved to the movement position set by the movement position setting value storage means to be stored and the movement position setting input means. Therefore, based on the movement position setting value stored in the movement position setting value storage means and the circumference data of the electric winch drum (81) stored in the position calculation database, the electric winch drum (81) Rotation speed calculation means for calculating the rotation speed, and rotation speed reflection means for reflecting the rotation speed of the electric winch drum (81) calculated by the rotation speed calculation means to the wire rope (83) that pulls the head pulley (45). And a belt conveyor control device.

(Function)
The retracting mechanism (31, 32, 34, 35) according to claim 2 is a variation of the retracting mechanism (61, 62, 64) according to claim 1.
It comprises a hinge arm (31a, 31b), a carrier stand (32a, 32b), a rotation control member (34a, 34b), and a hinge (35a, 35b).
When the head pulley (45) moves in a predetermined direction, the axial direction of the hinges (35a, 35b) in the hinge arms (31a, 31b) opens and closes in parallel with the traveling direction of the transport belt (18). That is, the retracting mechanism (31, 32, 34, 35) opens and closes in parallel with the traveling direction of the conveyor belt (18) so that the movement of the head pulley (45) is not hindered, and the belt support means (30 ) Secures a moving path of the head pulley moving means (43, 44) and the head pulley (45) while having a function of supporting the transport belt (18) and the transported object.
With the configuration described above, when the transported object is transported on the transport belt (18), the position of the head pulley (45) (the end point position of the transported object) can be changed. Further, since only the head pulley (45) is formed to move, it contributes to space saving and weight reduction of the entire belt conveyor. Furthermore, since the package is removed from the tip of the head pulley (45), the package can be completely discharged.
When the head pulley moves, the carrier stands (32a, 32b) are opened.At this time, the carrier stands (32a) and the carrier stands (32b) are alternately arranged in the front and rear directions and the guide rollers (37a 37b), the movement of the head pulley is smooth. On the other hand, when closing, the lock mechanism (70) fixes the carrier stands (32a, 32b) to each other.

Further, the transport position variable belt conveyor operates as follows.
The rail member (41a, 41b) supports the rotating shaft (45b) of the head pulley (45) to form a movement trajectory. The head pulley moving means (43, 44) moves the rotating shaft (45b) along the rail members (41a, 41b). By this movement, the conveyor belt (18) stretched over the head pulley (45) and the tail pulley (17) is loosened or stretched, but if it is loosened, the conveyor belt (18) is conveyed to the conveyor belt storage mechanism (90). ) Is stored and extended, the transport belt (18) is unloaded from the transport belt storage mechanism (90). Further, the transport belt storage mechanism (90) has a transport belt storage section (91), which is a space for storing the transport belt (18), positioned upstream of the head pulley (45).
Accordingly, it is possible to easily control the belt slack and belt extension caused by the movement of the belt conveyor when the transportation objects on the conveyor belt (18) are continuously loaded.

The belt is controlled by a belt conveyor control device.
The belt conveyor control device stores the position data of the belt conveyor body and the circumference data of the electric winch drum that controls the head pulley by holding the conveyor belt (18) and controlling the head pulley. ing.
The operator of the belt conveyor sets the head pulley (45) as a desired movement position on the belt conveyor using the movement position setting input means. The moving position setting value determining means determines whether or not the moving position setting value input by the moving position setting input means corresponds to the position data of the belt conveyor main body stored in the position calculation database. .
If it is determined that the moving position set value is within the position data range of the belt conveyor body, the input moving position set value is stored in the moving position set value storage means. In order to move the head pulley (45) to the movement position set by the movement position setting input means, the movement position setting value stored in the movement position setting value storage means and the electric winch drum stored in the position calculation database Based on the circumference data of (81), the rotational speed calculation means calculates the rotational speed of the electric winch drum (81). The rotation number reflecting means reflects the rotation number of the electric winch drum (81) on the wire rope (83) that pulls the head pulley (45). As described above, rational control of the belt conveyor is achieved.

(Claim 3)
The invention according to claim 3 limits the control device according to claim 1 or claim 2.
That is, the apparatus includes an upstream movement distance setting unit that sets a movement distance to the upstream side of the head pulley and a downstream movement distance setting unit that sets a movement distance to the downstream side.

(Function)
The operator sets the moving distance to the upstream side that sets the moving distance of the head pulley using the upstream moving distance setting means, and sets the moving distance to the downstream side using the downstream moving distance setting means. .

(Claim 4)
The invention according to claim 4 limits the belt conveyor control device according to any one of claims 1 to 3.
That is, a standby time setting means for setting a standby time on the upstream side of the head pulley and a standby time on the downstream side is provided.

(Function)
This “standby time setting means” includes one in which an operator inputs data, one that is automatically set according to an operation mode, or a combination thereof.

(Claim 5)
The invention according to claim 5 limits the belt conveyor control device according to any one of claims 1 to 4.
In other words, the position calculation database includes package storage data capable of storing a package for the package storage space in which the package is stored, and the package can be stored from the package storage data. It is characterized by having a storage amount data calculation means for calculating a sufficient storage amount data.

(Function)
For the package storage space in which the package is stored, the package storage database has the package storage capacity data that can store the package, and the storage volume data calculation means transports the package storage data from the package storage data. Storage amount data that can store an object is calculated. In other words, by grasping the capacity of the package that can be stored in the package storage space, the transport and storage work of the package can be reasonably processed.

(Claim 6)
The invention according to claim 6 limits the belt conveyor control device according to claim 5.
That is, an optimum storage amount calculating means for calculating an optimal storage amount for the transport storage space based on the transportable material storage data and the storage amount data is provided.

(Function)
By calculating the optimum storage amount that can be stored in the storage space for transported goods, the transporting and storing work of the transported goods can be realized rationally and systematically.

(Claim 7)
The invention according to claim 7 limits the belt conveyor control device according to any one of claims 1 to 6.
That is, it is characterized by comprising position correction means for correcting the displacement of the position of the head pulley.

(Function)
When a load is loaded on the conveyor belt, the conveyor belt is displaced from the head pulley by the impact.
The position correction means is a function to correct this deviation. Specifically, a means for grasping the deviation from the conveyance bell using an optical sensor or a bar code is installed and controlled on the head pulley and the conveyance belt. To do.

(Claim 8)
The invention according to claim 8 limits the belt conveyor control device according to claim 7.
That is, the position correction unit includes a sensor for each of the head pulley and the conveyance belt, calculates a deviation between the head pulley and the conveyance belt, and the movement position according to the deviation calculated by the deviation calculation unit. And zero correction means for varying the set value.

(Function)
Sensors installed on the head pulley and the conveyor belt calculate the deviation of the conveyor belt.
The deviation calculated here is reflected in the movement position setting value set by the movement position setting input means for moving the head pulley.
This is called zero correction, and it is assumed that the conveyor belt has shifted to 1 cm plus (front side). In this case, the wire rope (83) is controlled by the electric winch drum (81), and the wire rope (83) is also shifted 1 centimeter minus (rear side) from the set moving position setting value.
Although it is necessary from the viewpoint of safety that the transport belt 18 is displaced, it has been difficult to control the transport belt 18. However, the provision of the position correction procedure can solve the conflicting issues of safety and control of the conveyor belt. Therefore, it contributes to a significant functional improvement in the belt conveyor operation.

(Claim 9)
The invention according to claim 9 limits the belt conveyor control device according to any one of claims 1 to 8.
That is, provided with a balance discriminating means for discriminating that the left and right balance of the carrier stand has been lowered, and having an emergency stop means for urgently stopping the belt conveyor when the left and right balance is lowered by the balance discriminating means. It is characterized by.

(Function)
The head pulley moves so as to push the carrier stand. At this time, one or both of the left and right sides of the carrier stand may be displaced or caught due to contact with the head pulley. When the balance discriminating means detects the left / right balance of the carrier stand, the belt conveyor urgently stops the belt conveyor. As the balance determination means, that is, it is determined whether or not the position of the carrier stand is the normal position. Further, it may be determined whether or not the lock of the lock mechanism is normally closed. This improves the safety of the belt conveyor.

(Claim 10)
The invention according to claim 10 is a conveyance position variable belt conveyor in which a transported object is transported from a starting point position that is a transporting object inlet to an end point position that is located downstream, and the end point position can be changed. A tail pulley that can be rotated by a horizontal rotating shaft near the side, a head pulley that can be rotated by a horizontal rotating shaft at the end point position and that can change the position of the rotating shaft, the head pulley, and the tail pulley A conveyor belt that is stretched over the rail, a rail member that supports the rotation shaft of the head pulley and that forms a movement locus of the rotation shaft, and a head pulley moving means for moving the rotation shaft along the rail member; Storing or unloading the conveyor belt that loosens or stretches as its head pulley moving means moves And a conveyor belt storage mechanism for maintaining the tension of the conveyor belt, and belt support means for supporting the weight of the transported article conveyed by the conveyor belt and the weight and tension of the conveyor belt along the conveyor path. A plurality of belt support means corresponding to a position that hinders movement during movement of the head pulley moving means includes a retreat mechanism that retreats to a position that does not interfere with the movement, and the retreat mechanism is extended along the transport direction. A main body frame for fixing the retracting mechanism, a curvilinear carrier stand pivotally supported so as to be able to rotate in a direction blocking the transport direction with respect to the main body frame, and a transport belt from below at one end of the carrier stand A carrier roller for supporting the carrier stand and the body at the opposite end of the carrier roller; It is fixed to a frame, according to a control program for controlling the transport position variable belt conveyor constructed and a rotation control member for controlling the rotation of the carrier stand.
The program stores the position data of the belt conveyor main body and the transport procedure while holding the transport belt, transports the transported goods, and stores the circumferential data of the electric winch drum for controlling the head pulley in the position calculation database, and the head pulley The moving position setting input procedure for setting the desired moving position on the belt conveyor and the moving position setting value input by the moving position setting input procedure correspond to the position data of the belt conveyor main body stored in the position calculation database. The moving position setting value determining procedure for determining whether or not the moving position setting value is within the position data range of the belt conveyor body, and the moving position setting value to be stored is stored. The head pulley is moved to the moving position set by the set value storing procedure and the moving position setting input procedure. In addition, based on the movement position setting value stored in the movement position setting value storage procedure and the circumference data of the electric winch drum stored in the position calculation database, the rotation speed calculation calculates the rotation speed of the electric winch drum. A control program comprising a procedure and a procedure for reflecting the number of revolutions of the electric winch drum calculated by the procedure for calculating the number of revolutions is reflected on a wire rope that pulls the head pulley.

(Claim 11)
The invention according to claim 11 is a transport position variable belt conveyor in which the transported object is transported from the starting point position which is the transporting object inlet to the end point position located downstream, and the end point position can be changed. A tail pulley that can be rotated by a horizontal rotating shaft near the side, a head pulley that can be rotated by a horizontal rotating shaft at the end point position and that can change the position of the rotating shaft, the head pulley, and the tail pulley A conveyor belt that is stretched over the rail, a rail member that supports the rotation shaft of the head pulley and that forms a movement locus of the rotation shaft, and a head pulley moving means for moving the rotation shaft along the rail member; Storing or unloading the conveyor belt that loosens or stretches as its head pulley moving means moves And a conveyor belt storage mechanism for maintaining the tension of the conveyor belt, and belt support means for supporting the weight of the transported article conveyed by the conveyor belt and the weight and tension of the conveyor belt along the conveyor path. A plurality of belt support means corresponding to positions where movement of the head pulley moving means is obstructed is provided with a retracting mechanism for retracting to a position that does not interfere with the movement, and the retracting mechanism is set up perpendicular to the transport direction. A main body frame for fixing the retracting mechanism, a hinge extending in a right angle direction along the main body frame and having a rotation control member for opening and closing the retracting mechanism, and a hinge arm connected to the hinge A curvilinear material carrier stand connected to the hinge arm and pivotally supported in a direction to block the conveying direction of the conveying belt. A plurality of carrier rollers that support the conveyor belt from below at one end of the carrier stand, and the axial direction of the rotation shaft of the hinge arm opens and closes in parallel with the traveling direction of the conveyor belt when passing through the head pulley. The carrier stands are paired, and the pair of carrier stands are arranged in a staggered manner in a top view and separated from each other in a top view with a predetermined interval, and includes a lock mechanism for fixing the carrier stands to each other. The present invention relates to a control program for controlling a transfer position variable belt conveyor configured as described above.
The program stores the position data of the belt conveyor main body and the transport procedure while holding the transport belt, transports the transported goods, and stores the circumferential data of the electric winch drum for controlling the head pulley in the position calculation database, and the head pulley The moving position setting input procedure for setting the desired moving position on the belt conveyor and the moving position setting value input by the moving position setting input procedure correspond to the position data of the belt conveyor main body stored in the position calculation database. The moving position setting value determining procedure for determining whether or not the moving position setting value is within the position data range of the belt conveyor body, and the moving position setting value to be stored is stored. The head pulley is moved to the moving position set by the set value storing procedure and the moving position setting input procedure. In addition, based on the movement position setting value stored in the movement position setting value storage procedure and the circumference data of the electric winch drum stored in the position calculation database, the rotation speed calculation calculates the rotation speed of the electric winch drum. A control program comprising a procedure and a procedure for reflecting the number of revolutions of the electric winch drum calculated by the procedure for calculating the number of revolutions is reflected on a wire rope that pulls the head pulley.

(Claim 12)
The invention according to claim 12 limits the control program according to claim 10 or claim 11.
That is, an upstream side moving distance setting procedure for setting an upstream moving distance of the head pulley and a downstream side moving distance setting procedure for setting a downstream moving distance are provided.

(Claim 13)
The invention described in claim 13 limits the control program according to any one of claims 10 to 12.
That is, a standby time setting procedure for setting a standby time on the upstream side of the head pulley and a standby time on the downstream side is provided.

(Claim 14)
The invention according to claim 14 limits the control program according to any one of claims 10 to 13.
In other words, the position calculation database includes package storage data capable of storing a package for the package storage space in which the package is stored, and the package can be stored from the package storage data. A storage amount data calculation procedure for calculating a sufficient storage amount data.

(Claim 15)
The invention described in claim 15 limits the control program described in claim 14.
That is, an optimal storage amount calculation procedure for calculating an optimal storage amount for the transport storage space based on the transportable material storage data and the storage amount data is provided.

(Claim 16)
The invention according to claim 16 limits the control program according to any one of claims 10 to 15.
In other words, the rotational speed calculation procedure includes a position correction procedure for correcting a displacement of the position of the head pulley.

(Claim 17)
The invention according to claim 17 limits the control program according to claim 16.
That is, in the position correction procedure, a sensor is provided for each of the head pulley and the conveyance belt, and a deviation calculation procedure for calculating a deviation between the head pulley and the conveyance belt, and the movement position according to the deviation calculated by the deviation calculation procedure. And a zero correction procedure for changing the set value.

(Claim 18)
The invention according to claim 18 limits the control program according to any one of claims 10 to 17.
That is, a balance determination procedure for determining that the left / right balance of the carrier stand has been reduced, and an emergency stop procedure for emergency stop of the belt conveyor when the left / right balance is reduced by the balance determination procedure. It is characterized by.

The computer program according to claims 10 to 18 can be provided by being stored in a recording medium. Here, the “recording medium” is a medium that can carry a program that cannot occupy space by itself, such as a flexible disk, a hard disk, a CD-R, an MO (magneto-optical disk), a DVD- R and the like.
It is also possible to transmit from a computer storing a program according to these inventions to another computer through a communication line.

According to the first to ninth aspects of the present invention, it is possible to provide a belt conveyor control device that easily controls belt slack, belt expansion, and belt shift caused by movement of the conveying position variable belt conveyor.
According to the tenth to eighteenth aspects of the present invention, it is possible to provide a belt conveyor control program for easily controlling belt slack, belt extension, and belt shift caused by movement of the conveying position variable belt conveyor.

  Embodiments of the present invention will be described with reference to the drawings. The drawings used here are FIGS. 1 to 21. FIG. 1 is a side view showing an overall configuration of a mobile belt conveyor, FIG. 2 is a perspective view showing the front end portion of the mobile belt conveyor and the vicinity of a head pulley, and FIG. 3 is a mobile belt conveyor. 4 is a perspective view showing the configuration of the head pulley cart unit, FIG. 5 is a plan view showing the configuration of the head pulley cart unit, and FIG. 6 is a diagram of the head pulley cart unit. FIG. 7 is a perspective view showing a configuration of a carrier stand in the openable carrier roller unit, and FIG. 8 is a perspective view showing a closed state of the carrier stand in the openable carrier roller unit. .

  9 is a side view showing the configuration of the carrier stand lock unit, FIG. 10 is a front view showing the configuration of the carrier stand lock unit, and FIG. 11 shows the locking and unlocking operations in the carrier stand lock unit. (A) is a front view, (b) is a plan sectional view, FIG. 12 is a side view showing an unlocking operation in the carrier stand lock unit, and FIG. 13 is a head pulley carriage. 14 is a side view showing the configuration of the unit and the winch unit, FIG. 14 is a perspective view showing the configuration of the belt storage unit, and FIG. 15 is a diagram of the transported goods when the head pulley is moved upstream or downstream. FIG. 16 is a side view showing another configuration of the movable belt conveyor, and FIG. Is a block diagram showing the configuration of Tokonbeya controller 20 from FIG. 18 is a flowchart showing the control process of the head pulley, Figure 21 is a schematic diagram for explaining the zero correction procedure.

  As shown in FIG. 1, the movable belt conveyor can freely drop a package placed on the conveyor belt 18 to an arbitrary position by moving the head pulley 45 to the upstream side and the downstream side. The belt conveyor main body unit 10, the head pulley carriage unit 40 that moves the head pulley with the carriage, the openable carrier roller unit 60 that opens and closes according to the passage of the head pulley 45, and the openable carrier roller unit 60. Carrier stand lock unit 70 for maintaining and locking the belt, a carriage moving winch unit 80 for moving the head pulley 45 to the upstream side or the downstream side, and a belt storage for storing the transport belt 18 slackened by the movement of the head pulley 45. The unit 90 is configured.

(Belt conveyor unit)
As shown in FIG. 1 to FIG. 3, the belt conveyor main unit 10 includes a vertical member 11 a erected vertically from the floor surface, and is orthogonal to the opposite floor surface side of the vertical member 11 a and along the direction of the conveyor belt 18. Conveyor body frame 11 formed in a substantially rectangular shape by crossed cross beams 11b and 11c, and arranged on both sides centering on the conveyor body frame 11, and workers are maintained during maintenance of the mobile belt conveyor. Walkable corridor 12 and handrails 13 installed to ensure safety during walking of the corridor 12, a transport input 14 that is a transport input, and a transport that is input from the transport input 14 Is provided with a transported material discharge section 15 that is discharged through a conveyor belt 18.

  The belt conveyor body unit 10 is arranged such that the head pulley 45 arranged at the front end portion thereof, the tail pulley 17 located at the opposite end portion of the head pulley 45, and the head pulley 45 and the tail pulley 17 are bridged. The conveyor belt 18 is provided.

  Further, a drive pulley 21 that is driven by the drive force transmitted from the drive motor 19 via the drive chain 20, and a plurality of ordinary carriers that are arranged so as to be able to transmit the drive force of the drive pulley 21 and support the conveyor belt 18. A roller 22. The ordinary carrier roller 22 is a roller that is positioned upstream of a contracted state limit switch described later and does not open or close. In addition, a return roller 23 that supports the return-side transport belt 18 while rotating is provided.

(Head pulley cart unit)
The head pulley carriage unit 40 is a unit capable of moving a head pulley 45 placed on the carriage frame 44, and has two U-shaped rails 41 arranged in a direction spaced apart from each other in the direction of the conveyor belt 18. 41, wheels 43 and 43 installed at both ends of the wheel shaft 42 and movably fitted along the rail grooves 41a of the rails 41 and 41, and a head pulley 45 mounted on the carriage frame 44, respectively. Prepare.

  Although not shown, there may be a case where a single ordinary carrier roller unit is provided on the upstream side of the carriage. The purpose is to smoothly open and close the openable carrier roller unit 60. This is because the first openable carrier roller unit 60 on the upstream side of the head pulley 45 is at a position where the belt tension is highest than the other, so that the load is high and it may be difficult to open and close.

  This phenomenon does not occur when the distance between the head pulley and the tail pulley is short, but occurs when the distance between the head pulley and the tail pulley is long or when transporting a high specific gravity transport. Therefore, by mounting one ordinary carrier roller unit 22 on the upstream side of the carriage, it is possible to share the load and smoothly open and close the open / close carrier roller unit 60.

  A carrier roller opening / closing guide plate 46 that covers the head pulley 45 from the side surface to cover the upper surface and serves to push and spread the carrier roller when the head pulley 45 is moved, and is fixed to each of the substantially central portions of the front and rear of the carriage frame 44. , First opening / closing projection members 47, 47 that act to push down the carrier roller when the head pulley 45 moves, second opening / closing projection members 48, 48 for unlocking the lock pin in the carrier stand lock unit 70, and the conveyor belt A belt cleaner unit 49 is provided for removing deposits adhering to the belt surface.

The head pulley 45 will be further described with reference to FIGS. FIG. 4 is a perspective view showing the head pulley and the carriage frame, and FIGS. 5 and 6 are side views showing the head pulley and the carriage frame.
The head pulley 45 is fixed to the carriage frame upper end 44 a of the carriage frame 44 by fitting the head pulley shaft 45 b to the head pulley bearing 45 a. A hook 44b is fixed to the carriage frame 44, and a wire rope 83 for moving the head pulley 45 back and forth along the direction of the conveying belt 18 is connected to the hook 44b. The wire rope 83 is wound around the pulleys 82 and 82 to change the direction, and the head pulley 45 is moved back and forth by the driving force of the winch unit 80.
The moving range of the head pulley 45 is a range in which the transporting material inlet 14 shown in FIG. 1 is set as the downstream limit and the transporting material discharge unit 15 is set as the upstream limit. Yes.

(Openable carrier roller unit)
FIG. 7 is a perspective view showing a carrier stand open state of the openable carrier roller unit, and FIG. 8 is a perspective view showing a carrier stand closed state of the openable carrier roller unit.
The openable carrier roller unit 60 is formed to be openable and closable when passing through the head pulley 45, and two openable levers 61a and 61b are sandwiched and supported by the transverse beams 11b and 11c of the conveyor body frame 11, and the openable lever Carrier stands 62a and 62b are integrally formed at one ends of 61a and 61b via flip-up hinges 63a and 63b. The carrier stands 62a and 62b hold a plurality of carrier rollers 66 that support the conveyance belt 18 in a trough-curved state from the lower side.

  The other ends of the open / close levers 61 a and 61 b are connected to two springs 64 a and 64 b for restoring the open open / close levers 61 a and 61 b to the original state. The springs 64 a and 64 b are connected to the carriage frame 11. It is fixed to the upper surface 11c by spring support members 65a and 65b. Three carrier rollers 66 are fixed on the inner surfaces of the carrier stands 62 a and 62 b via roller fixing members 67. The carrier roller 66 incorporates a bearing therein and rotates by the bearing.

  Further, as shown in FIG. 8, the carrier roller 66a installed on the carrier stand 62a is located in front (upstream side) of the carrier roller 66b installed on the carrier stand 62b. That is, the carrier roller 66a and the carrier roller 66b are arranged so as to overlap each other in the front view, and there are two rows (double) in the top view. The dual arrangement of the carrier rollers 66a and 66b as described above makes it possible to adopt a commercially available inexpensive roller by dispersing the burden on the center-side carrier roller that is most loaded in the closed state. Of course, the carrier stand can also be made into one line by dividing the carrier roller closer to the center into half lengths. These carrier rollers 66 support the conveyor belt 18 and rotate to assist smooth movement of the conveyor belt 18 and maintenance of the trough shape.

  The shape of the carrier stands 62a and 62b in the closed state is substantially U-shaped when viewed from the front. If it is U-shaped, even if the transported object is an unstable piece such as coal, it can be effectively prevented from falling from the side surface of the conveyor belt 18.

(Carrier stand lock unit)
As shown in FIGS. 9 and 10, the carrier stand lock unit 70 is a unit that locks the carrier stands 62a and 62b so that the carrier stands 62a and 62b are not opened by the weight of the transported goods or the like when the carrier stand 62a is closed. The lock unit main body 70a connected from the lower end to the lower end of the carrier stand 62b, the fulcrum pin 71 inserted into the lock unit main body 70a from the carrier stand 62a side, and the fulcrum pin 71 as a support shaft are fixed. The lock unit opening / closing lever 72, the link plate 73 that is orthogonally crossed from the middle part 72b of the lock unit opening / closing lever 72 toward the carrier stand 62b, and connected by a bolt 79a, and a bolt 79b at one end of the link plate 73 And a lock pin 74 connected to each other. The lock pin 74 is formed so that it can be inserted into and removed from the pin hole 74b.

  The lock unit opening / closing lever 72 is fitted with a spiral spring 78 for keeping the lock unit opening / closing lever 72 in a locked state from the base shaft portion 72a to the vicinity of the width direction of the lock unit main body 70a. The spiral spring 78 has a force acting in the direction (inner side) in which the lock unit opening / closing lever 72 is locked in a normal state.

  As shown in FIG. 9, an opening / closing lever slider 77 is provided at the distal end of the lock unit opening / closing lever 72 so as to project back and forth from the distal end so as to form an inverted T shape in a side view. A lock pin receiving plate 75a for forming the lock unit opening / closing lever 72 in a locked state or an unlocked state is fixed to the carrier stand 62a at the lower end of the lock unit main body 70a, and the lock pin receiving plate 75b is a carrier. It is fixed to the stand 62b.

  The lock pin receiving plates 75a and 75b may be formed as permanent magnets so that the lock pin receiving plate 75a is fixed to the lock pin receiving plate 75b. In this way, the lock pin 74 is not necessary. Further, it can be formed as a hook-and-loop fastener instead of the permanent magnet.

(About lock opening and closing operation)
Next, the unlocking operation of the carrier stand lock unit 70 will be described with reference to FIGS.
First, when the head pulley 45 moves in a predetermined direction, the protrusion tip 48 a of the second opening / closing protrusion member 48 contacts the opening / closing lever slider 77. At this time, since the side surface 77b of the opening / closing lever slider 77 contacts the inclined surface portion 48b of the second opening / closing projection member 48, the lock unit opening / closing lever 72 is moved outwardly relatively smoothly. Then, in accordance with the movement of the lock unit opening / closing lever 72, the lock pin 74 is detached from the pin hole 74b and the lock pin receiving plates 75a and 75b (A to B in FIG. 11A). When the lock pin 74 is removed, the lock state of the lock unit opening / closing lever 72 is released.

  As shown in FIG. 12, the tip 47a of the first opening / closing projection member 47 inserts between the conveyor belt 18 and the carrier rollers 66a and 66b, and pushes the carrier rollers 66a and 66b downward. Although this is slightly delayed from the release of the lock pin 74 described above, it operates at substantially the same timing. That is, the locked state of the lock unit opening / closing lever 72 has already been released, but the elastic force of the spiral spring 78 acts to restore the locked state.

  When the second opening / closing projection member 48 releases the lock pin 74 and the first opening / closing projection member 47 is inserted between the conveyor belt 18 and the carrier roller 66 and the carrier stand is pushed down, the lock pin 74 is released. Will be displaced from the pin hole 74b. For this reason, automatic restoration by the lock pin 74 being inserted into the pin hole 74b does not occur.

  Subsequently, the carrier roller 66a comes into contact with the inclined surface portion 46a of the carrier roller opening / closing guide plate 46 shown in FIG. Push outward. Similarly, the sloped portion 46b contacts the carrier roller 66b to push the carrier stand 62b outward, and the head pulley 45 is advanced in the traveling direction. In this way, the plurality of openable and closable carrier roller units 60 installed on the movable belt conveyor pass through the opening and closing in order and proceed to the stop position set in advance by the control means.

  In addition, the shape of the inclined surface portion 46a and the inclined surface portion 46b of the carrier roller opening / closing guide plate 46 is preferable because it is formed in a shape that matches the locus drawn by the tip end portion of the carrier roller 66, and the movement of the head pulley 45 becomes smooth.

On the other hand, after passing through the head pulley 45, the openable carrier roller unit 60 returns to the closed state in the reverse order of the preceding paragraph, and the lock unit body 70 receives the lock pin 74 by the action of the spiral spring 78 of the lock pin 74. The plate is inserted into the pin hole 74 formed by the plates 75a and 75b and the lock pin receiving plates 75a and 75b, and is restored to the locked state again.
In other words, the head pulley 45 can be freely moved back and forth on the upstream side and the downstream side by these series of operations, so that the transported material on the transport belt 18 can be transported to a predetermined place and discharged freely. Can be made.

(Winch unit)
As shown in FIG. 13, the winch unit 80 is a unit that electrically drives the head pulley 45 to a predetermined position by turning on and off a switch (not shown), and the outer periphery of a plurality of pulleys 82 arranged at predetermined intervals is provided. One end of the wound wire rope 83 is connected to the hook 44b of the carriage frame 44, and the electric winch drum 81 moves the carriage frame 44 and the head pulley 45 in an arbitrary direction (upstream side or downstream side in this embodiment). Is provided. Further, a limit switch 84a for stopping the head pulley 45 at the limit position when the transport belt 18 is contracted and a limit switch 84b for stopping the head pulley 45 at the limit position when the transport belt 18 is extended are provided. Each limit switch 84a, 84b is installed near the tip of the belt conveyor body 40 and near the winch unit, and functions as a limit range in which the head pulley 45 can move.

Here, the “conveyance belt contraction state” means that when the head pulley 45 is moved upstream, the conveyance belt 18 is loosened and an excess belt is generated. This means that the surplus belt is contracted. On the other hand, the “conveyance belt extended state” means a state in which the conveyance belt 18 is extended when the head pulley 45 is moved downstream.
In addition, although the winch unit 80 in this embodiment implement | achieves traction with the electric winch drum 81 and the wire rope 83, it is not limited about a motive power source. For example, the head pulley 45 can be pulled using a gear and a chain, and a hydraulic motor, pneumatic motor, internal combustion engine, human power, gravity, spring force, etc. can be used as an alternative to the electric motor of the winch unit. it can. However, the combination of the wire rope 83 and the electric winch 81 is preferable because it can be realized with space saving and low cost.

(Control means)
Although not shown, the winch unit 80 includes a control unit that controls the moving distance of the head pulley 45. This control means is controlled by the rotational speed of the head pulley 45. That is, the preset moving distance is converted into the rotation speed. For example, if the number of rotations of the head pulley required for 1 m movement is 2.5 rotations, when setting the movement of “10 m”, 25 rotations may be used. The moving distance can be arbitrarily set, and a unit of “5 m”, a unit of “10 m”, a unit of “50 cm”, and the like can be considered.

(Belt storage unit)
FIG. 14 is a partially enlarged view showing the configuration of the belt storage unit 90. The belt storage unit 90 has a function of storing the excess belt in the “conveyance belt contracted state”, and stands from the ground. The belt storage unit 90 supports the entire head pulley movable belt conveyor. A plurality of idle pulleys 92 that change the direction of 18 as required, and a counterweight ((relatively moving member)) 93 that can move up and down to keep the conveyor belt 18 at a constant tension are configured.

  The idle pulley 92 winds and supports three fixed idle pulleys 92a installed on the left and right sides of the drive pulley 21 and the conveyor belt 18 extending from the fixed idle pulleys 92a, and is opposed to each other with a predetermined interval therebetween. The three movable idle pulleys 92b are arranged and grounded to the upper surface portion 93a of the counterweight 93. Each of these idle pulleys 92a and 92b controls the expansion and contraction of the conveyor belt 18 wound around the idle pulleys 92a and 92b. The fixed idle pulley 92 a is fixed to the back surface of the belt conveyor main body by a fixing member 94, and the movable idle pulley 92 a is fixed to the counterweight 93 by the fixing member 94. The counterweight 93 has a function of holding the tension of the conveyor belt 18 by gravity and reducing a shock at the time of activation.

  The specific operation is as follows. When the head pulley 45 moves to the upstream side, the conveying belt 18 is slackened and an excess belt is generated. At this time, the counterweight 93 is moved downward (ground side) by gravity according to the moving distance of the head pulley 45. Then, the surplus belt that should be generated by the slack of the conveying belt 18 can be extended by the downward movement of the movable idle pulley 92b. That is, the tension of the conveyor belt 18 can be kept constant and stored in the belt storage unit frame 91.

  On the other hand, when the head pulley 45 moves downstream, the counterweight 93 moves upward following the movement distance. In this way, the belt tension of the conveyor belt 18 is kept constant. Therefore, even when the head pulley 45 is moved back and forth to make the place where the transported item falls freely, the excess belt can be stored in the belt storage unit frame 91 and the tension can be kept constant.

Hereinafter, the loading state of the transported goods when the head pulley 45 is moved to the upstream side or the downstream side will be described.
When the power switch of the movable belt conveyor is first pressed, the drive motor 19 drives the drive pulley 21 to rotate the transport belt 18.
Next, the transported goods are input from the upstream system through the input port 14. The transported goods flow on the conveyor belt 18 and fall into the transported goods storage space for storing the transported goods from the transported goods discharging unit 15.
After a predetermined time elapses, the package is discharged in the same location, and the package formed in a mountain shape is loaded in the package storage space. (Fig. 15 (a))

  Next, under the condition that the vehicle is in operation, an operation command for moving to the downstream side is executed using the control means. Then, the electric winch 81 has power to pull downstream, and the head pulley 45 connected to the wire rope 83 is moved downstream. The head pulley 45 moves to and stops at a location (slope C1) set downstream of the mountain-shaped package, drops the package from the conveyor belt 18 at that location, and loads the package in the package storage space. I will do it. (Fig. 15 (b))

  After the predetermined time has elapsed, when the stack is loaded to the same extent as the first load pile (C), the head pulley 45 is moved to the opposite slope (slope C2). As in the case of moving to the downstream side, an operation command for moving to the upstream side is executed using the control means, and the electric winch 81 is connected to the wire rope 83 by the power pulled to the upstream side. The head pulley 45 is moved upstream. The head pulley 45 moves to a place (slope C2) set on the upstream side of the mountain-shaped package (falling mountain) and stops, and the package is dropped from the conveyor belt 18 at the place to be a package storage space. Load cargo. (Fig. 15 (c))

  That is, by continuing to load the transported goods at the same location, a pile of the transported goods is generated, and it becomes difficult to sufficiently load up to the space adjacent to the peak. Therefore, since the head pulley 45 can be arbitrarily moved to the upstream side or the downstream side, it is possible to sufficiently cover a vacant space adjacent to the transported object (falling mountain). Therefore, it is possible to efficiently and efficiently load the package in the package storage space without any gap.

  Further, since the electric winch 81 and the counterweight 93 are relatively moved, the conveyor belt 18 can be held in the belt storage unit frame 91, and the conveyor belt 18 can be effectively slackened and extended. Can be prevented. For this reason, when dropping a transportation thing from the front-end | tip of the head pulley 45, it becomes possible to displace the dropping point freely.

  As a specific operation, the height of the mountain formed by the transported object is determined, and when it is determined that the height of the mountain reaches a preset height, the head pulley 45 is moved back and forth. Move to one of the. Repeat this process and load them to a uniform height. As the time interval, for example, it moves back and forth at intervals of about 2 seconds.

FIG. 16 shows a belt conveyor 10 </ b> A with a storage mechanism showing another form of the belt conveyor with a storage mechanism. The belt conveyor 10A with a storage mechanism has the same basic configuration as the belt conveyor 10 with a storage mechanism described above, but the fixing position of the belt storage unit frame 90 is different. That is, the conveyance belt storage part 91 of the belt storage unit frame 90 in this embodiment is fixed above the belt conveyor 10A with a storage mechanism.
If the transport belt storage unit 91 is fixed above the belt conveyor 10, the construction for newly installing the transport belt storage unit 91 on the existing belt conveyor 10 becomes easy. Further, in the case of the present embodiment, the counterweight 93 may be automatically wound up by a winch or the like when the transport belt 18 is slackened.

  In the present embodiment, the number of carrier rollers 66 of the openable carrier roller unit 60 is six, but the present invention is not limited to this. It can be adjusted as appropriate according to the width of the conveyor belt 18. For example, the number may be four or eight. The carrier stands 62a and 62b are formed in a U-shape, but may be a carrier stand formed in a flat shape.

  In this embodiment, the carrier stands 62a and 62b are opened and closed by the spring force of the springs 64a and 64b. However, this is not particularly limited. For example, each cylinder such as a hydraulic cylinder, a pneumatic cylinder, and a voltage cylinder can be used. Alternatively, it is also possible to employ a torsion spring around the lifting hinge 63 or a torque generator utilizing hydraulic pressure, pneumatic pressure, or electric power.

  Further, although three carrier rollers 66 are arranged on the carrier stand 62 on each of the left and right sides, this is not particularly limited. This is because the conveyance belt 18 of the present embodiment is formed in a trough shape. For example, when the conveyance belt 18 is formed in a flat shape, one carrier roller 66 is arranged on each of the left and right sides. It is desirable that the structure be divided from the center.

  Further, the belt storage method of the belt storage unit 90 may be as follows. That is, in this embodiment, the belt storage unit frame 91 has a thickness in the width direction and the fixed idle pulleys 92 are arranged in parallel, but the belt storage unit frame 91 has a thickness in the depth direction. You can also If it does in this way, the length of the whole belt conveyor can be shortened and it contributes to space saving.

Next, a belt conveyor with storage mechanism 10B showing another embodiment of the belt conveyor with storage mechanism will be described with reference to FIGS.
As shown in FIGS. 17 (a) and 17 (b), the belt conveyor 10B with a storage mechanism moves the head pulley 45 to the upstream side and the downstream side, so that the transported goods placed on the transport belt 18 can be arbitrarily selected. It has a function that can be freely dropped to the position. Compared with the belt conveyor 10 with the storage mechanism described above, the belt conveyor main body unit, the head pulley carriage unit 40 that moves the head pulley 45 by the carriage, the flat-open carrier roller unit 30 that opens and closes according to the passage of the head pulley 45, the head A carriage moving winch unit 80 that pulls the pulley 45 to the upstream side or the downstream side and a belt storage unit 90 that stores the transport belt 18 slackened by the movement of the head pulley 45 are the same. However, the shape of the head pulley cart unit and the open / close structure of the openable carrier roller unit are different.

(Head pulley cart unit)
The head pulley carriage unit 40 is a unit capable of moving a head pulley 45 placed on the carriage frame 44, and has two U-shaped rails 41 arranged in a direction spaced apart from each other in the direction of the conveyor belt 18. 41 and wheels 43 and 43 installed at both ends of the wheel shaft 42 and movably fitted along rail grooves (not shown) of the respective rails 41 and 41, and a column 46d stand on the carriage frame 44. And a head pulley 45 supported by the column 46d.

The head pulley 45 has a carrier roller opening / closing guide plate 46 which is covered from the side surface to the upper surface and serves to push and spread the carrier roller when the head pulley 45 is moved. A first opening / closing projection member 47 having a tip 47a that presses against the carrier roller when the pulley 45 moves is provided.
The carrier roller opening / closing guide plate 46 includes a first inclined surface portion 46a and a second inclined surface portion 46b, and the carrier roller is pushed and spread by the inclined surface portions.

(Flat open type carrier roller unit)
The flat-open carrier roller unit 30 is not vertically opened / closed in response to the passage of the head pulley 45 like the open / close carrier roller unit 60 described above, but is supported perpendicular to the traveling direction of the head pulley 45. A horizontal opening / closing type carrier roller unit that allows the head pulley 45 to move by opening and closing in the horizontal direction with the shaft as a fulcrum. More specific description will be given below.

  The flat-open carrier roller unit 30 is formed so as to be horizontally openable and closable when passing through the head pulley 45, and two hinge arms 31a and 31b are supported by the vertical member 11a of the conveyor body frame 11, and the hinge arm 31a , 31b, carrier stands 32a, 32b are continuously and integrally formed.

Hinges 35a and 35b extending perpendicularly to the hinge arms 31a and 31b are fixed to the other ends of the hinge arms 31a and 31b. Torsion springs (rotation control members) 34a and 34b for opening and closing the hinge arms 31a and 31b are rotatably fixed to both upper and lower ends of the hinges 35a and 35b.
As shown in FIGS. 21 (a) and 21 (b), the torsion springs 34a and 34b, which are rotation control members, come into contact with the inner wall of the spring case 341 by the spring fixing portions 342 and 343, respectively. The entire 344 is rotatably supported. The torsion springs 34a and 34b are formed so that the winding directions are opposite to each other.

That is, when the winding directions are reversed, the torsion springs 34a and 34b can store power even if the hinge arms 31a and 31b and the carrier stands 32a and 32b are opened and closed either forward or backward. That is, the opening / closing direction may be either.
By adopting the torsion springs 34a and 34b, when the hinge arms 31a and 31b and the carrier stands 32a and 32b are opened and closed, another power source such as a motor is not required. This simplifies control and facilitates maintenance.

  The head pulley carriage unit 40 which is a head pulley moving means is provided with a fixed carrier stand (67) erected vertically from the carriage frame 44. When the fixed carrier stand 67 is provided, the load on the flat-open carrier roller unit 30 immediately upstream of the carriage frame 44 is distributed to the fixed carrier stand 67 and reduced. That is, the load at the inflection point from the flat shape to the U-shape of the conveyor belt 18 is larger than the others. Supporting this inflection point load by the fixed carrier stand 67 not only reduces the inflection point load on the flat-open type carrier roller unit 30 closest to the upstream side, but also makes it more complicated than the fixed carrier stand 67. Therefore, it is possible to protect the flat-open carrier roller unit 30 having a structure that is likely to break down from the inflection point. Thereby, the head pulley carriage unit 40 can move more smoothly.

The carrier stands 32a and 32b hold a plurality of carrier rollers 36 that support the conveyance belt 18 in a trough-curved state from the lower side. Three carrier rollers 36 are fixed on the inner surface of each carrier stand 32a, 32b via roller fixing members (not shown). The carrier roller 36 incorporates a bearing therein and rotates by the bearing. The number of carrier rollers 36 is not limited to three and can be increased or decreased.
Guide rollers 37a and 37b are provided at the front ends of the carrier stands 32a and 32b. When the carrier stands 32a and 32b are opened and closed, the guide rollers 37a and 37b come into contact with the carrier stand 32b (or vice versa). At this time, the guide rollers 37a and 37b come into contact with a predetermined direction. Rotate. Moreover, since it contacts also when closing, the operation | movement becomes smooth.

  Further, as shown in FIG. 19, the carrier roller 36b held by the carrier stand 32b is located in front (upstream side) of the carrier roller 36a held by the carrier stand 32a. That is, the carrier roller 36a and the carrier roller 36b are arranged so as to overlap each other in the front view, and there are two rows (double) in the top view. The double arrangement of the carrier rollers 36a and 36b as described above makes it possible to adopt a commercially available inexpensive roller by dispersing the burden on the center-side carrier roller that is most loaded in the closed state.

On the other hand, the carrier roller 36a and the carrier roller 36b are arranged so as to overlap in two rows in front and back in the front view and in the top view because the inclined surfaces 46a and 46b of the carrier roller opening / closing guide plate are symmetrical in the top view. There is no entanglement of left front or right front when closed.
Of course, the carrier stand can also be arranged in a line by dividing the carrier roller closer to the center into half lengths. These carrier rollers 36 rotate while supporting the conveyor belt 18 to assist smooth movement of the conveyor belt 18 and maintenance of the trough shape.

  Further, the shape of the carrier stands 32a and 32b in the closed state is substantially U-shaped when viewed from the front. If it is U-shaped, it is possible to effectively prevent the transported belt 18 from falling from the side surface even if the transported object is an unstable so-called “single piece” such as coal.

  The carrier stand lock unit 70 (lock mechanism) is a lock unit that locks the carrier stands 32a and 32b. The carrier stand lock unit 70 is formed of, for example, a ferromagnetic material such as a permanent magnet, and a first lock member 70c fixed to the carrier stand 32a side and a second lock member fixed to the carrier stand 32b side. 70d. As the ferromagnetic material, one may be a magnet and the other may be a substance attached to the magnet, or both may be magnets. The magnet is preferably a permanent magnet to simplify the structure, but may be an electromagnet.

(Function)
Next, the operation will be described with reference to FIGS.
First, when the head pulley 45 moves upstream, the tip 47a of the first opening / closing projection member 47 contacts the carrier roller 36a. At this time, the carrier stands 32a and 32b are fixed by the magnetic force of the first lock member 70c and the second lock member 70d. Keep away.
Subsequently, the carrier roller 36a comes into contact with the slope 46a of the carrier roller opening / closing guide plate 46, and pushes the carrier stand 32a forward. Similarly, the sloped portion 46b contacts the carrier roller 36b to spread the carrier stand 32b forward, and the head pulley 45 is advanced in the traveling direction.

  On the other hand, the flat-open carrier roller unit 30 is pushed forward by the head pulley 45. At this time, the axial direction of the hinges 35a and 35b in the hinge arms 31a and 31b is determined by the conveying belt when the head pulley 45 passes. The opening / closing operation is in parallel with the 18 traveling directions. Then, the torsion springs 34a and 34b provided above and below the hinges 35a and 35b rotate, and the carrier stands 32a and 32b are opened and closed.

The torsion spring 34a is for right rotation, and the torsion spring 34b is formed for left rotation. That is, when the carrier stands 32a and 32b are opened and closed, both the left and right can be rotated, so that even if the opening and closing direction is opposite (upstream side or downstream side), it is easily restored to the initial state (closed state). To do.
In this way, the head pulley 45 passes through the plurality of flat-open carrier roller units 30 installed on the movable belt conveyor while sequentially opening and closing, and proceeds to the stop position set in advance by the control means.
Further, since the torsion springs 34a and 34b are employed, no separate power source such as a motor is required when the flat-open carrier roller unit 30 is moved, which facilitates control and maintenance.

  The slopes 46a and 46b of the carrier roller opening / closing guide plate 46 are bilaterally symmetric, and the carrier roller 36a and the carrier roller 36b are arranged so as to overlap in front and rear in a front view and in two rows in a top view. Therefore, the locus drawn by the tip of the flat-open carrier roller unit 30 is asymmetrical, so that it is not entangled such as left front or right front when closed, and the head pulley 45 moves smoothly, which is preferable.

On the other hand, after passing through the head pulley 45, the flat-open carrier roller unit 30 is restored to the initial state (closed state) by the spring action of the torsion springs 34a and 34b.
In other words, the head pulley 45 can be freely moved back and forth on the upstream side and the downstream side by these series of operations, so that the transported material on the transport belt 18 can be transported to a predetermined place and discharged freely. Can be made.

In the present embodiment, since the carrier stand is formed to open and close back and forth, the carrier stand lock unit 70 described above may be a simpler type such as a magnet type.

(Belt conveyor control device)
Next, the control means of the winch unit 80 will be described in detail.
The winch unit 80 realizes the pulling of the head pulley 45 by the electric winch drum 81 and the wire rope 83, and includes a belt conveyor control device 50 as a control means for controlling the moving distance of the head pulley 45.

As shown in FIG. 17, the belt conveyor control device 50 controls the entire control device 50, and performs a CPU 51 for performing various arithmetic processes, and a RAM (temporarily expanding the data when writing various data). (Memory) 52, a storage unit 53 for storing various data, an input unit 54 for inputting various data to the CPU, a display unit 55 for displaying setting data, etc., and an electric communication line such as the Internet or an intranet A communicable communication unit 56, an output unit 57 capable of outputting various data, an input / output port 58 serving as an input / output unit for various data, and a position calculation database 59 are provided.
The position calculation database 59 stores the position data of the belt conveyor body, the circumference data of the head pulley 45, and the package storage possible data.

The control process of the head pulley 45 will be described with reference to FIG.
First, the movement position of the head pulley 45 is set by the movement position setting input means (S101).
This is provided with a mark indicating position data on the belt conveyor body, and can be set by inputting the position data.

It is determined whether or not the moving position setting value input by the moving position setting input means corresponds to the position data of the belt conveyor main body stored in the position calculation database 59 (S102).
When it is determined that the moving position setting value is within the position data range of the belt conveyor body, the input moving position setting value is stored in the storage unit 53 (S103).
On the other hand, if it is out of the position data range of the belt conveyor main body, an error display is displayed and the process returns to the setting input of the moving position setting value again (S104).
Note that “outside the position data range of the belt conveyor main body” refers to a case where position data other than the belt conveyor main body position data stored in advance in the position calculation database 59 is input.

Next, in order to move the head pulley 45 with respect to the set movement position, the rotation number calculation means calculates the electric winch drum 81 from the movement position setting value stored in the storage unit 53 and the circumference data of the electric winch drum 81. Is calculated (S105).
In this process, for example, when the electric winch drum 81 is rotated 10 times, if the moving distance of the head pulley 45 is “1 m”, the rotational speed necessary to move the head pulley 45 “10 m” is “ 100 rotations ".
That is, the movement position of the head pulley 45 can be controlled by calculating the rotation speed of the winch unit 80 that moves the head pulley 45 back and forth on the conveyor belt 18.
The control of the movement distance can be arbitrarily set, and can be set in units of “1 m”, “5 m”, “10 m”, “50 cm”, or the like.

Next, the rotation speed of the electric winch drum 81 calculated by the rotation speed calculation means is reflected on the wire rope 83 (S106).
And if the electric winch drum 81 is rotated according to this rotation speed, the wire rope 83 will pull the head pulley 45 and will move to a predetermined position (S107), and will drop a transportation thing.
In other words, the belt conveyor control device 50 controls the winch unit 80 so that the moving distance of the head pulley 45 can be controlled. Therefore, control at the time of storing a package in the package storage space is also facilitated.

(Reverse rotation processing)
Next, the mixing process in the forward rotation process and the reverse rotation process of the electric winch drum 81 will be described with reference to FIG.
Similarly to FIG. 18, the movement position setting input means sets and inputs the movement position to the position where the head pulley 45 is to be moved on the upstream side of the belt conveyor (S201).
Further, the moving position to the position where the head pulley 45 is to be moved downstream on the belt conveyor is set and input (S202).

It is determined whether or not each moving position set value input by the upstream moving position setting input means and the downstream moving position setting input means corresponds to the position data of the belt conveyor main body stored in the position calculation database 59. (S203).
When it is determined that the moving position setting value is within the position data range of the belt conveyor body, the moving position setting value storage means stores the input moving position setting value (S204).
On the other hand, if it is outside the position data range of the belt conveyor main body, an error is displayed and the process returns to the setting input of the moving position setting value again (S205).

  Next, in order to move the head pulley 45 to the movement position set by the rotation speed calculation means, the rotation speed calculation means uses the movement position setting value stored in the storage unit 53 and the circumference data of the electric winch drum 81. The rotational speed of the electric winch drum 81 is calculated (S206).

Next, the rotation number of the electric winch drum 81 calculated by the rotation number calculation means is reflected on the wire rope 83 (S207).
When the electric winch drum 81 is rotated in accordance with the rotational speed, the wire rope 83 pulls the head pulley 45 and moves to a predetermined position.
The head pulley 45 is rotated forward or backward according to the control of the electric winch drum 81 (S208).

  As an action, first, the wire rope 83 moves by pulling the head pulley 45 to the position set by the upstream movement position setting value, and drops the transported goods. And the wire rope 83 pulls the head pulley 45 to the place set by the downstream movement position setting value, and drops the transported goods. By doing in this way, a package can be dropped evenly with respect to the empty space before and behind the package storage space.

(Time settings)
FIG. 20 is a flowchart illustrating time setting when a transported item falls.
That is, the input means of the belt conveyor control device 50 sets and inputs the moving position to the position where the head pulley 45 is to be moved on the upstream side of the belt conveyor (S301), and inputs the head pulley 45 on the downstream side of the belt conveyor. The movement position to the part to be moved is set and input (S302).
Here, the standby time setting means sets the standby time on each of the upstream side and the downstream side, and determines the storage amount of the transported goods in the storage space (S303).
If the standby time is set to be long, many packages can be stored, and if the standby time is set to be short, the amount of packages can be reduced. That is, the storage amount can be freely adjusted according to the standby time.

Hereinafter, as in FIG. 19, each moving position setting value input by the upstream moving position setting input means and the downstream moving position setting input means corresponds to the position data of the belt conveyor main body stored in the position calculation database 59. It is determined whether or not (S304).
If it is determined that the moving position setting value is within the position data range of the belt conveyor body, the moving position setting value storage means stores the input moving position setting value (S305).
On the other hand, if it is outside the position data range of the belt conveyor main body, an error is displayed and the process returns to the setting input of the moving position setting value again (S306).

  Next, in order to move the head pulley 45 to the set movement position, the rotational speed calculation means calculates the position of the electric winch drum 81 from the movement position setting value stored in the storage unit 53 and the circumference data of the electric winch drum 81. The rotational speed is calculated (S307).

Next, the rotation speed of the electric winch drum 81 calculated by the rotation speed calculation means is reflected on the wire rope 83 (S308).
When the electric winch drum 81 is rotated in accordance with the rotational speed, the wire rope 83 pulls the head pulley 45 and moves to a predetermined position.
The head pulley 45 is rotated forward or backward according to the control of the electric winch drum 81 (S309).

(Storage amount setting)
Further, the storage amount can be set according to the size of the storage space.
That is, the position calculation database 59 is provided with package storage data capable of storing a package for the package storage space in which the package is stored, and the package can be stored from the package storage data. A storage amount data calculating means for calculating the storage amount data is provided.
Since there is a storage amount (limit amount) that can be stored in the package storage space, the stored package storage data is stored in the position calculation database. Then, the storage amount data calculating means calculates storage amount data capable of storing the transport goods from the transportable material storage possible data. If it does in this way, it can set so that transportation of more than the storage possible quantity may not be transported.

In addition, an optimal storage amount calculation means for calculating an optimal storage amount for the transport storage space based on the transportable storage data and the storage amount data is provided.
The optimal storage amount calculation means calculates the optimal storage amount according to the package storage space. If the transportation plan is performed using the calculated optimum storage amount, transportation efficiency is improved.

(Zero correction procedure)
The belt conveyor control device 50 described above is provided with a position correction means for correcting the displacement of the position of the head pulley 45.
The position correction means in the present embodiment is realized by zero correction means using the grasp of deviation by a sensor.
That is, a sensor is provided for each of the electric winch drum 81 and the wire rope 83. And the deviation calculation means for calculating the deviation between the electric winch drum 81 and the wire rope 83, and the moving position setting value are varied according to the deviation calculated by the deviation calculation means.

More specifically, as shown in FIG. 21, sensors are embedded at 90 ° intervals in four places on the top, bottom, left, and right of the electric winch drum 81.
A plurality of sensors are embedded at equal intervals in the wire rope 83. For example, an interval of 1 meter may be considered.
The electric winch drum side sensors of the electric winch drum 81 are A, B, C, and D, and the wire side sensors of the wire rope 83 are a, b, c, d, e, and f.
The time axis column (t) is set to 0 when the distance between the sensor A and the sensor a is a predetermined interval (for example, 10 centimeters).

Actually, it is applied in the following cases.
First, the head pulley 45 moves to a position set by the moving position setting value by controlling the electric winch drum 81 and pulling the wire rope 83.
During the movement of the head pulley 45, the wire rope 83 may be in a turbulent winding state due to an impact such as a load being loaded on the conveyor belt 18, and the position of the head pulley 45 may be displaced. . With respect to this deviation, the degree of deviation is calculated by the deviation calculation procedure. That is, it is detected whether the distance between the sensors described above exceeds a specified value. When it is necessary to correct the position of the conveyor belt 18 by this detection, the electric rope winch drum 81 controls the wire rope 83 to vary the moving position setting value corresponding to the deviation calculated by the deviation calculation procedure. This is, for example, zero correction in which the wire rope 83 is also shifted by “50 centimeters” when the transport belt 18 is shifted by “50 centimeters” from a specified value.

  In addition, as a wire side sensor embedded in the wire rope 83, there exists a form which embeds a sensor in the steel core of the wire rope 83. FIG. There is also a form in which a wire sensor is inserted and bonded between the steel core of the wire rope 83 and a wire (synthetic resin or the like) covering the steel core. The wire rope 83 is made of copper wire used for lighting equipment, tungsten wire used for industrial robots and fishing wires, and shape memory used for underwear and ayu fishing wires. An alloy or the like may be used.

  Although it is necessary from the viewpoint of safety that the transport belt 18 is displaced, it has been difficult to control the transport belt 18. However, the provision of the position correction procedure can solve the conflicting issues of safety and control of the conveyor belt. Therefore, it contributes to a significant functional improvement in the belt conveyor operation.

(Emergency stop function)
The belt conveyor control device 50 is provided with balance determining means for determining that the left / right balance of the carrier stand has been lowered, and emergency stop means for urgently stopping the belt conveyor when the left / right balance is lowered by the balance determining means. It has.

The head pulley 45 moves so as to spread the carrier stand. At this time, the carrier stand may be displaced or caught on the left or right of the carrier stand due to contact with the head pulley 45. The balance discriminating means stops the belt conveyor urgently when detecting the deviation of the left / right balance of the carrier stand. That is, it is determined whether or not the position of the carrier stand is the normal position. This improves the safety of the belt conveyor.
The balance determining means may determine a state where the lock pin 74 of the lock mechanism has been removed from the hole 74b, and may make an emergency stop if the lock is not closed normally.

  The invention of the present application can be used in a logistics company that transports a monotonous packaged fixed article on a belt conveyor, a manufacturer of the belt conveyor, a maintenance industry of the belt conveyor, and the like.

It is the side view which showed the whole structure of the movable belt conveyor. It is the perspective view which showed the front-end | tip part and head pulley vicinity of a movable belt conveyor. It is front sectional drawing of a mobile belt conveyor. It is a perspective view which shows the structure of a head pulley trolley unit. It is a top view which shows the structure of a head pulley cart unit. It is a top sectional view showing composition of a head pulley cart unit. It is a perspective view which shows the carrier stand open state in an open / close type carrier roller unit. It is a perspective view which shows the carrier stand closed state in an open / close type carrier roller unit. It is a side view which shows the structure of a carrier stand lock unit. It is a front view which shows the structure of a carrier stand lock unit. FIGS. 12A and 12B are operational views showing a lock and unlock operation in the carrier stand lock unit, where FIG. 12A is a front view, FIG. 12B is a plan sectional view, and FIG. 12 is a side view showing the lock release operation in the carrier stand lock unit; It is. It is a side view which shows the lock release operation | movement in a carrier stand lock unit. It is a side view which shows the structure of a head pulley trolley unit and a winch unit. It is a perspective view which shows the structure of a belt storage unit. It is a figure explaining the loading condition of the transportation thing when a head pulley is moved to the upstream or the downstream. It is the side view which showed the other structure of the movable belt conveyor. It is the block diagram which showed the structure of the belt conveyor control apparatus. It is the flowchart which showed the control process of the head pulley. It is the flowchart which showed the control process of the head pulley. It is the flowchart which showed the control process of the head pulley. FIG. 4 is a diagram showing the relationship between a head pulley and a belt, showing a relationship between a winch and a wire rope.

Explanation of symbols

10 10A 10B Belt conveyor unit
DESCRIPTION OF SYMBOLS 11 Conveyor main body frame 11a Vertical member 11b, 11c Horizontal beam 12 Walkway 13 Handrail 14 Transported material insertion port 15 Transported material discharge part 18 Conveyance belt 19 Drive motor 20 Drive chain 21 Drive pulley 22 Normal type carrier roller unit 23 Return roller unit 30 Flat open Type carrier roller unit 31a, 31b Hinge arm 32a, 32b Carrier stand 34a Torsion spring unit (for right rotation), 34b Torsion spring unit (for left rotation)
341 Spring case 342, 343 Spring fixing part 344 Spring body 35a, 35b Hinge 36a, 36b Carrier roller
37a, 37b Guide roller
40 head pulley cart unit
41 Rail 41a Rail groove 42 Wheel shaft 43 Wheel 44 Bogie frame 44a Upper end
44b Hook 45 Head pulley 45a Head pulley bearing 45b Head pulley shaft 46 Carrier roller opening / closing guide plate
46a 1st slope part, 46b 2nd slope part 46d support | pillar 47 1st opening / closing projection member
47a Tip
47b First slope portion 47c Second slope portion 48 Second opening / closing projection member 48a Projection tip 48b Slope portion 49 Belt cleaner unit 50 Belt conveyor control device 51 CPU 52 RAM
53 Storage unit 54 Input unit 55 Display unit 56 Communication unit 57 Output unit 58 Input / output port 60 Open / close type carrier roller unit 61a, 61b Open / close lever 62a, 62b Carrier stand 63a, 63b Spring hinge 64a, 64b Spring 65a, 65b Spring support member 66 Carrier roller 67 Fixed carrier stand
70 carrier stand lock unit 70a lock unit body 71 fulcrum pin 72 lock unit opening / closing lever 72a base shaft portion 72b midway portion 73 link plate 74 lock pin 74b hole 75a, 75b lock pin receiving plate 77 opening lever slider 78, 79b bolt
80 Winch Unit 81 Electric Winch Drum 82 Pulley 83 Wire Rope 84a, 84b Limit Switch 90 Belt Storage Unit
91 Belt storage unit frame 92a Fixed idle pulley
92b Movable idle pulley 93 Counterweight
94 Fixing member

Claims (18)

A belt conveyor control device that controls a transport position variable belt conveyor that can transport a transported object from a start point position that is a transport object input port to an end point position that is located downstream, and that can change the end point position,
The transport position belt conveyor includes a tail pulley that can rotate on a horizontal rotating shaft near the start point, and a head pulley that can rotate on the horizontal rotating shaft at the end point position and can change the position of the rotating shaft. A conveyor belt spanned between the head pulley and the tail pulley;
A rail member that supports the rotating shaft of the head pulley and forms a movement locus of the rotating shaft;
A head pulley moving means for moving the rotating shaft along the rail member;
The head pulley moving means stores or unloads the conveying belt that is loosened or stretched as it moves, and
A transport belt storage mechanism that maintains the tension of the transport belt,
A plurality of belt support means for supporting the weight of the transported material transported by the transport belt and the weight and tension of the transport belt along the transport path,
The belt support means corresponding to the position that hinders movement during movement of the head pulley moving means includes a retracting mechanism that retracts to a position that does not interfere with the movement,
The retracting mechanism includes a main body frame that extends along the transport direction and fixes the retracting mechanism,
A curvilinear carrier stand that is pivotally supported so as to be able to rotate in a direction that blocks the conveying direction with respect to the main body frame;
A carrier roller for supporting the conveyor belt from below at one end of the carrier stand;
Fixed to the carrier stand and the body frame at the opposite end of the carrier roller;
A rotation control member for controlling the rotation of the carrier stand,
The belt conveyor control device
A position calculation database that stores the position data of the belt conveyor body and the conveyance data while holding the conveyance belt and storing the circumference data of the electric winch drum that controls the head pulley;
A moving position setting input means for setting the head pulley to a desired moving position on the belt conveyor;
A moving position setting value determining means for determining whether or not the moving position setting value input by the moving position setting input means corresponds to the position data of the belt conveyor main body stored in the position calculation database;
When it is determined that the moving position setting value is within the position data range of the belt conveyor body, moving position setting value storage means for storing the input moving position setting value;
In order to move the head pulley to the movement position set by the movement position setting input means, the movement position setting value stored in the movement position setting value storage means and the electric winch drum stored in the position calculation database A rotational speed calculating means for calculating the rotational speed of the electric winch drum based on the circumference data;
A rotational speed reflecting means for reflecting the rotational speed of the electric winch drum calculated by the rotational speed calculating means on a wire rope that pulls the head pulley;
A belt conveyor control device comprising: A belt conveyor control device that controls a transport position variable belt conveyor that can transport a transported object from a start point position that is a transport object input port to an end point position that is located downstream, and that can change the end point position,
The transfer position variable belt conveyor includes a tail pulley that can rotate on a horizontal rotating shaft near the start point, and a head that can rotate on the horizontal rotating shaft at the end point position and change the position of the rotating shaft. A pulley and a conveyor belt hung over the head pulley and the tail pulley;
A rail member that supports the rotating shaft of the head pulley and forms a movement locus of the rotating shaft;
A head pulley moving means for moving the rotating shaft along the rail member;
The head pulley moving means stores or unloads the conveying belt that is loosened or stretched as it moves, and
A transport belt storage mechanism that maintains the tension of the transport belt,
A plurality of belt support means for supporting the weight of the transported material transported by the transport belt and the weight and tension of the transport belt along the transport path,
The belt support means corresponding to the position that hinders movement during movement of the head pulley moving means includes a retracting mechanism that retracts to a position that does not interfere with the movement,
The retracting mechanism is a body frame that is erected perpendicularly to the transport direction and fixes the retracting mechanism;
A hinge provided with a rotation control member that extends in a perpendicular direction along the main body frame and opens and closes the retracting mechanism;
A hinge arm connected to the hinge;
A curvilinear carrier stand connected to the hinge arm and pivotally supported in a direction to block the conveying direction of the conveying belt;
A plurality of carrier rollers for supporting the conveyor belt from below at one end of the carrier stand, wherein the axial direction of the rotating shaft of the hinge arm is a direction that opens and closes in parallel with the traveling direction of the conveyor belt when passing through the head pulley. And
The carrier stands are paired, and the pair of carrier stands are arranged alternately at the front and rear in a top view at a predetermined interval, and includes a lock mechanism for fixing the carrier stands to each other,
The belt conveyor control device
A position calculation database that stores the position data of the belt conveyor body and the conveyance data while holding the conveyance belt and storing the circumference data of the electric winch drum that controls the head pulley;
A moving position setting input means for setting the head pulley to a desired moving position on the belt conveyor;
A moving position setting value determining means for determining whether or not the moving position setting value input by the moving position setting input means corresponds to the position data of the belt conveyor main body stored in the position calculation database;
When it is determined that the moving position setting value is within the position data range of the belt conveyor body, moving position setting value storage means for storing the input moving position setting value;
In order to move the head pulley to the movement position set by the movement position setting input means, the movement position setting value stored in the movement position setting value storage means and the electric winch drum stored in the position calculation database A rotational speed calculating means for calculating the rotational speed of the electric winch drum based on the circumference data;
A rotational speed reflecting means for reflecting the rotational speed of the electric winch drum calculated by the rotational speed calculating means on a wire rope that pulls the head pulley;
A belt conveyor control device comprising:   2. The apparatus according to claim 1, further comprising upstream movement distance setting means for setting a movement distance of the head pulley to the upstream side and downstream movement distance setting means for setting the movement distance to the downstream side. Item 3. The belt conveyor control device according to any one of Items 2 to 3.   The belt conveyor control according to any one of claims 1 to 3, further comprising standby time setting means for setting a standby time on the upstream side of the head pulley and a standby time on the downstream side. apparatus.   The database for position calculation is provided with transportable storable data capable of storing a transported product for a transported product storage space in which the transported product is stored, and storage capable of storing the transported product from the transportable product storable data. The belt conveyor control device according to any one of claims 1 to 4, further comprising storage amount data calculation means for calculating amount data.   The belt conveyor control device according to claim 5, further comprising an optimum storage amount calculating unit that calculates an optimal storage amount for a transport storage space based on the transportable object storage data and the storage amount data. The belt conveyor control device according to any one of claims 1 to 6, wherein the rotation speed calculation means includes position correction means for correcting a displacement of the position of the head pulley.   The position correction means includes a sensor in each of the head pulley and the conveyor belt, calculates a deviation between the head pulley and the conveyor belt, and the moving position setting value according to the deviation calculated by the deviation calculator. The belt conveyor control device according to claim 7, further comprising: a zero correction unit that makes the variable.   A balance determining means for determining that the left / right balance of the carrier stand has been reduced is provided, and an emergency stop means is provided for urgently stopping the belt conveyor when the left / right balance is reduced by the balance determining means. The belt conveyor control device according to any one of claims 1 to 8. The transported object is transported from the starting point position, which is the loading port, to the end point position located downstream, and the end position can be changed. Possible tail pulley,
A head pulley capable of rotating on a horizontal rotation shaft at the end point position and capable of changing the position of the rotation shaft;
A conveyor belt stretched over the head pulley and the tail pulley;
A rail member that supports the rotating shaft of the head pulley and forms a movement locus of the rotating shaft;
A head pulley moving means for moving the rotating shaft along the rail member;
The head pulley moving means stores or unloads the conveying belt that is loosened or stretched as it moves, and
A transport belt storage mechanism that maintains the tension of the transport belt,
A plurality of belt support means for supporting the weight of the transported material transported by the transport belt and the weight and tension of the transport belt along the transport path,
The belt support means corresponding to the position that hinders movement during movement of the head pulley moving means includes a retracting mechanism that retracts to a position that does not interfere with the movement,
The retracting mechanism includes a main body frame that extends along the transport direction and fixes the retracting mechanism,
A curvilinear carrier stand that is pivotally supported so as to be able to rotate in a direction that blocks the conveying direction with respect to the main body frame;
A carrier roller for supporting the conveyor belt from below at one end of the carrier stand;
Fixed to the carrier stand and the body frame at the opposite end of the carrier roller;
A control program for controlling a transport position variable belt conveyor comprising a rotation control member for controlling the rotation of the carrier stand,
The program stores the position data of the belt conveyor main body and the transport procedure while holding the transport belt, transports the transported goods, and stores the circumferential data of the electric winch drum for controlling the head pulley in the position calculation database, and the head pulley The moving position setting input procedure for setting the desired moving position on the belt conveyor and the moving position setting value input by the moving position setting input procedure correspond to the position data of the belt conveyor main body stored in the position calculation database. The moving position setting value determining procedure for determining whether or not the moving position setting value is within the position data range of the belt conveyor body, and the moving position setting value to be stored is stored. The head pulley is moved to the moving position set by the set value storing procedure and the moving position setting input procedure. In addition, based on the movement position setting value stored in the movement position setting value storage procedure and the circumference data of the electric winch drum stored in the position calculation database, the rotation speed calculation calculates the rotation speed of the electric winch drum. Rotation speed reflection procedure for reflecting the rotation speed of the electric winch drum calculated by the procedure and the rotation speed calculation procedure on the wire rope that pulls the head pulley,
A control program comprising: The transported object is transported from the starting point position, which is the loading port, to the end point position located downstream, and the end position can be changed. Possible tail pulley,
A head pulley capable of rotating on a horizontal rotation shaft at the end point position and capable of changing the position of the rotation shaft;
A conveyor belt stretched over the head pulley and the tail pulley;
A rail member that supports the rotating shaft of the head pulley and forms a movement locus of the rotating shaft;
A head pulley moving means for moving the rotating shaft along the rail member;
The head pulley moving means stores or unloads the conveying belt that is loosened or stretched as it moves, and
A transport belt storage mechanism that maintains the tension of the transport belt,
A plurality of belt support means for supporting the weight of the transported material transported by the transport belt and the weight and tension of the transport belt along the transport path,
The belt support means corresponding to the position that hinders movement during movement of the head pulley moving means includes a retracting mechanism that retracts to a position that does not interfere with the movement,
The retracting mechanism is a body frame that is erected perpendicularly to the transport direction and fixes the retracting mechanism;
A hinge provided with a rotation control member that extends in a perpendicular direction along the main body frame and opens and closes the retracting mechanism;
A hinge arm connected to the hinge;
A curvilinear carrier stand connected to the hinge arm and pivotally supported in a direction to block the conveying direction of the conveying belt;
A plurality of carrier rollers for supporting the conveyor belt from below at one end of the carrier stand,
The axial direction of the rotating shaft in the hinge arm is a direction that opens and closes in parallel with the traveling direction of the conveyor belt when passing through the head pulley,
A pair of the carrier stands, and the pair of carrier stands are arranged in a staggered manner in front and back with a predetermined interval, and are provided with a lock mechanism for fixing the carrier stands to each other. A control program for controlling a variable belt conveyor,
The program stores the position data of the belt conveyor main body and the transport procedure while holding the transport belt, transports the transported goods, and stores the circumferential data of the electric winch drum for controlling the head pulley in the position calculation database, and the head pulley The moving position setting input procedure for setting the desired moving position on the belt conveyor and the moving position setting value input by the moving position setting input procedure correspond to the position data of the belt conveyor main body stored in the position calculation database. The moving position setting value determining procedure for determining whether or not the moving position setting value is within the position data range of the belt conveyor body, and the moving position setting value to be stored is stored. The head pulley is moved to the moving position set by the set value storing procedure and the moving position setting input procedure. In addition, based on the movement position setting value stored in the movement position setting value storage procedure and the circumference data of the electric winch drum stored in the position calculation database, the rotation speed calculation calculates the rotation speed of the electric winch drum. Rotation speed reflection procedure for reflecting the rotation speed of the electric winch drum calculated by the procedure and the rotation speed calculation procedure on the wire rope that pulls the head pulley,
A control program comprising:   11. The apparatus according to claim 10, further comprising an upstream movement distance setting procedure for setting a movement distance to the upstream side of the head pulley and a downstream movement distance setting procedure for setting a movement distance to the downstream side. Item 12. The control program according to any one of Items 11.   The control program according to any one of claims 10 to 12, further comprising a standby time setting procedure for setting a standby time on the upstream side of the head pulley and a standby time on the downstream side.   The database for position calculation is provided with transportable storable data capable of storing a transported product for a transported product storage space in which the transported product is stored, and storage capable of storing the transported product from the transportable product storable data. The control program according to any one of claims 10 to 13, further comprising a storage amount data calculation procedure for calculating the amount data.   15. The control program according to claim 14, further comprising an optimal storage amount calculation procedure for calculating an optimal storage amount for the transport storage space based on the transportable product storage data and the storage amount data.   The control program according to any one of claims 10 to 15, wherein the rotation speed calculation procedure includes a position correction procedure for correcting a displacement of the position of the head pulley.   In the position correction procedure, a sensor is provided for each of the head pulley and the conveyance belt, and a deviation calculation procedure for calculating a deviation between the head pulley and the conveyance belt, and the moving position setting value according to the deviation calculated by the deviation calculation procedure. The control program according to claim 16, further comprising: a zero correction procedure for varying.   A balance determination procedure for determining that the left and right balance of the carrier stand has been reduced is provided, and an emergency stop procedure is provided for emergency stop of the belt conveyor when the left and right balance is reduced by the balance determination procedure. The control program according to any one of claims 10 to 17.

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