TWI781219B - Article transport facility - Google Patents

Abstract

In an article transport facility, a transport conveyor includes a first upstream conveyor portion, a second upstream conveyor portion, a downstream conveyor portion, and an intermediate conveyor portion; the intermediate conveyor portion is configured to be movable between a transport position and a retracted position; a power feeding portion includes a main power feeding portion that supplies driving power to the first upstream conveyor portion, the second upstream conveyor portion, a downstream conveyor portion and the intermediate conveyor portion, and a sub-power feeding portion capable of supplying driving power to the first upstream conveyor portion, the downstream conveyor portion, and the intermediate conveyor portion; the sub-power feeding portion includes a power storage device that is charged through the supply of power from the main power feeding portion; and the intermediate conveyor portion is located in a transport position in a state in which power from the power feeding portion is supplied thereto, and moves from the transport position to a retracted position as supply of power from the power feeding portion is interrupted.

Description

Item Handling Equipment

field of invention

The present invention relates to an article conveying device, comprising: a fire door, which moves up and down to open and close; a conveying conveyor, which is installed under the fire door at the opening position, to convey articles; and a power supply unit for the conveying The conveyor is supplied with electric power for driving.

Background of the invention

An example of such an article transport facility is described in Japanese Patent Laid-Open No. 2016-088649 (Patent Document 1). In the article conveying equipment of Patent Document 1, the intermediate conveyor part (handover mechanism 30) of the conveying conveyor is configured to be freely movable to a conveying position and a retracted position, and the foregoing conveying position intersects with the moving track of the fire door, that is, the door track. And it is the position to support the articles conveyed by the conveying conveyor, and the aforementioned retracted position is a position that does not intersect with the door trajectory. In the state where the intermediate conveyor section is in the withdrawn position, the fire door (door 7 ) can move downward from the open position to the closed position without interfering with the intermediate conveyor section.

In addition, the intermediate conveyor part of the conveying conveyor 2 is configured so that it is located at the conveying position in a state where electric power is being supplied, and when the supply of electric power is Shut off and move from the transport position to the retracted position.

Summary of the invention

In the article transfer facility as described above, in the event of a fire, the fire door can be moved from the open position toward the closed position to prevent the spread of the fire. However, in the event of a fire, the power supply line or communication line may be disconnected due to the fire, making it impossible to supply power or drive signals to the conveyor, making the conveyor unable to operate normally. In addition, if the conveying conveyor fails to operate normally, there is a possibility that the items originally conveyed by the conveying conveyor will stop at the position overlapping with the door track, and sometimes the fire door may contact the conveying conveying items on board and cannot be lowered to the closed position.

Therefore, the realization of an article conveying device capable of properly lowering a fire door to a closed position has been highly anticipated.

In view of the above, the article conveying equipment is characterized in that it has: a fire door that moves up and down to open and close; a conveying conveyor that is installed under the fire door at the open position to convey articles; and a power supply unit, The electric power for driving is supplied to the conveyer, and the fire door can move downward from the open position to the closed position, and the conveyer is provided with a first upstream conveyor part, which is a door track relative to the moving track of the fire door. The second upstream conveyor part is arranged on the upstream side of the conveying direction relative to the first upstream conveyor part; the downstream conveyor part is arranged on the downstream side of the conveying direction relative to the aforementioned door trajectory. ; and the intermediate conveyor department, in the aforementioned moving The conveying conveyor is provided between the first upstream conveyor part and the downstream conveyor part in the conveying direction, the intermediate conveyor part is configured to be freely movable to a conveying position and a retreat position, and the conveying position is connected to the gate. The trajectory intersects and supports the article conveyed by the conveying conveyor. The retracted position is a position that does not intersect with the trajectory of the door. The upstream conveyor part, the aforementioned downstream conveyor part, and the aforementioned intermediate conveyor part supply power for driving; The aforementioned first upstream conveyor section, the aforementioned downstream conveyor section, and the aforementioned intermediate conveyor section other than the second upstream conveyor section supply power for driving, and the aforementioned auxiliary power supply section includes a power storage device that receives power from the main power supply The intermediate conveyor unit is charged with the power supply from the power supply unit, and the intermediate conveyor unit is located at the transfer position while the power supply from the power supply unit is being supplied, and moves from the transfer position when the power supply from the power supply unit is interrupted. to the previously withdrawn position.

According to this characteristic configuration, although the second upstream conveyor unit is supplied with electric power only by the main power supply unit, the first upstream conveyor unit and the downstream conveyor unit are supplied with electric power by both the main power supply unit and the sub power supply unit. Therefore, when the supply of electric power from the main power supply unit is cut off, although the second upstream conveyor unit stops and the article cannot be conveyed, the first upstream conveyor unit and the downstream conveyor unit can receive auxiliary power supply. Therefore, the electric power stored in the power storage device of the unit can be used to drive the first upstream conveyor unit and the downstream conveyor unit to convey articles. In addition, since the intermediate conveyor unit can obtain the power stored in the power storage device of the sub power supply unit supply and therefore in the transport position. Therefore, when the supply of electric power from the main power supply part is cut off, since the second upstream conveyor part is stopped, it is possible to prevent articles from being conveyed from the second upstream conveyor part to the first upstream conveyor part, and Articles in the first upstream conveyor section, the downstream conveyor section, and the intermediate conveyor section can be conveyed toward the downstream side in the conveying direction. Therefore, even if the supply of electric power from the main power supply unit is cut off, if an article exists on the door track, the article can still be conveyed to the downstream side of the door track in the conveying direction, and the article can be retracted from the door track. Instead, a situation where the fire door moving from the open position to the closed position interferes with the article can be avoided.

And, as the electric power from the auxiliary power supply part is cut off and the electric power to the conveying conveyor is cut off by the power supply part, the first upstream conveyor part, the second upstream conveyor part, and the downstream conveyor part are stopped, and intermediate conveyance Since the machine part moves from the transfer position to the retracted position, the intermediate conveyor part can be retracted from the door track, and the situation where the fire door moving from the open position to the closed position interferes with the intermediate conveyor part can be avoided.

In this way, since the fire door is moved downward along the door track from the open position to the closed position, it is possible to avoid the situation where the articles or the intermediate conveyor part interfere with the fire door, so that the fire door can be properly lowered to the closed position.

In addition, the article conveying equipment is characterized in that it includes: a fire door that moves up and down to open and close; a conveying conveyor that is installed below the fire door at the open position to convey the article; and a power supply unit for the conveying The conveyor supplies power for driving, and is equipped with: a control device that controls the aforementioned conveying conveyor, and the aforementioned fire door can move downward from the aforementioned open position to the closed position, and the aforementioned transporting conveyor has: a first The upstream conveyor part is arranged on the upstream side of the conveying direction with respect to the moving track of the fire door, that is, the door trajectory; the second upstream conveyor part is arranged on the upstream side of the conveying direction relative to the first upstream conveyor part; a conveyor section provided on the downstream side of the conveying direction with respect to the aforementioned door track; and an intermediate conveyor section provided between the first upstream conveyor section and the downstream conveyor section in the conveying direction of the conveying conveyor, The intermediate conveyor part is configured to be freely movable to a transfer position and a retreat position, the transfer position is a position intersecting with the door track and supports the article conveyed by the transfer conveyor, and the retreat position is not in line with the door track The intersecting position, and the intermediate conveyor part is configured to be located at the transfer position while the electric power from the power supply part is being supplied, and to move from the transfer position to Moving to the retreat position, the control device executes retreat control when it is judged that the conveying conveyor is in a state of malfunctioning, and the retracting control is the following control: Before the set time set in advance, the power supply unit supplies driving power to the first upstream conveyor portion, the downstream conveyor portion, and the intermediate conveyor portion, and after the set time has passed, the power to the first upstream conveyor portion, the downstream conveyor portion, and the intermediate conveyor portion are turned off. Supply of electric power for driving the first upstream conveyor section, the downstream conveyor section, and the intermediate conveyor section.

According to this configuration, by executing the retraction control, the articles on the first upstream conveyor section, the downstream conveyor section, and the intermediate conveyor section can be conveyed toward the downstream side in the conveying direction. Therefore, when the control device has judged that the conveying conveyor cannot operate normally, even if there are objects on the door track In such a case, it is still possible to retract the article from the door track by carrying out the back-and-forth control to move the article to the downstream side of the door track in the conveying direction. And, after the set time has elapsed, the first upstream conveyor section, the second upstream conveyor section, and the downstream conveyor section stop, and the intermediate conveyor section Since it moves from the transfer position to the withdrawn position, the intermediate conveyor section can be retracted from the door track, and the fire door moving from the open position to the closed position can avoid interfering with the intermediate conveyor section.

Therefore, when the conveying conveyor fails to operate normally, since the fire door can be prevented from interfering with the fire door when moving the fire door from the open position down the door track path to the closed position, the fire door can be properly adjusted. lowered to the closed position.

1: fire door

2: Transfer conveyor

2U: Conveyor unit

3: Power supply department

6: Wall

7: opening

8: door track

11: The first upstream conveyor department

12: The second upstream conveyor department

13: The first downstream conveyor section (downstream conveyor section)

14: Second downstream conveyor section

15: Intermediate conveyor department

16: Conveyor frame

17: Transport roller

18: Drive Department

18A: The first drive unit

18B: The second drive unit

18C: The third drive unit

18D: The fourth drive unit

18E: Fifth drive unit

19: Swing frame

20: Oscillating roller

21: Swing drive unit

22: Linkage Department

23: First Restricted Department

24: Second Restricted Department

25: Time Interruption Department

26: Main power supply department

27: Deputy Power Supply Department

27A: The first auxiliary power supply unit

27B: Second auxiliary power supply unit

28: Power storage device

29: Support frame

31: Door mobile operation part

32: Door detection department

32A: First door detection sensor

32B: Second door detection sensor

33: Power supply interruption unit

34: Fire detection device

35: Manual operation department

36: Detection department

41: Inventory sensor

A1: The first area

A2: Second area

C1: the first holder

C2: Second holder

H: Control device

H1: The first control unit (detection part)

H2: The second control unit (detection part)

H3: The third control unit

H4: Fourth control unit

P: axis

W: item

X: Transport direction

X1: Upstream side of conveying direction

X2: Downstream side of conveying direction

Z: up and down direction

Fig. 1 is a side view of an article conveying device.

Fig. 2 is a plan view of the article transfer facility.

Fig. 3 is a side view of the article conveying device.

Fig. 4 is a block diagram of an article conveying device.

FIG. 5 is a flowchart of back-off control.

form for carrying out the invention

1. Implementation form

Embodiments of the article conveyance facility will be described based on the drawings.

As shown in Figure 1, the article conveying equipment is equipped with: a fire door 1, which moves in the vertical direction Z to open and close the opening 7; and a conveying conveyor 2, which can convey objects Product W. Moreover, as shown in FIG. 4 , the article conveyance facility includes: a power supply unit 3 capable of supplying driving power to the conveyer 2 ; and a control device H capable of controlling the conveyer 2 .

In the following description, the conveyance direction of the article W is referred to as "conveyance direction X". Also, let the upstream side of the conveyance direction X be "conveyance direction upstream side X1", and the downstream side of the article W in the conveyance direction be "conveyance direction downstream side X2".

As shown in FIGS. 1 to 3 , the transport conveyor 2 is installed to cover the first area A1 and the second area A2 in a state of penetrating through the opening 7 of the wall body 6 . As shown in FIG. 2 , the first area A1 and the second area A2 are separated by a wall 6 , and the fire door 1 can open and close an opening 7 formed in the wall 6 . The fire door 1 can move downwards from the open position (the position of the fire door 1 shown in FIG. 1 ) to the closed position (the position of the fire door 1 shown in FIG. 3 ), and the opening 7 of the wall body 6 is opened in the open position. And in the closed position, the opening 7 of the wall 6 is closed. In this embodiment, a fire damper is used as the fire door 1 .

The conveying conveyor 2 is arranged below the fire door 1 in the open position. The transfer conveyor 2 is equipped with the 1st upstream conveyor part 11, the 2nd upstream conveyor part 12, the 1st downstream conveyor part 13, the 2nd downstream conveyor part 14, and the intermediate conveyor part 15. The conveying conveyor 2 is in accordance with the order of the second upstream conveyor part 12, the first upstream conveyor part 11, the intermediate conveyor part 15, the first downstream conveyor part 13, and the second downstream conveyor part 14, upstream from the conveying direction. The article W is conveyed along the conveyance direction X with the side X1 facing toward the downstream side X2 in the conveyance direction. In this embodiment, a roller conveyor is used as the transfer conveyor 2 .

Each of the first upstream conveyor section 11, the second upstream conveyor section 12, the first downstream conveyor section 13, the second downstream conveyor section 14, and the intermediate conveyor section 15 is a conveyor fixed to the floor Supported by frame 16.

The 1st upstream conveyor part 11 is provided in the conveyance direction upstream side X1 with respect to the door track 8 which is the movement track of the fire door 1. As shown in FIG. The 2nd upstream conveyor part 12 is provided in the conveyance direction downstream side X2 with respect to the 1st upstream conveyor part 11. As shown in FIG. The first upstream conveyor part 11 and the second upstream conveyor part 12 are arranged in the first area A1.

The 1st downstream conveyor part 13 is provided in the conveyance direction downstream side X2 with respect to the door track 8. As shown in FIG. The 2nd downstream conveyor part 14 is provided in the conveyance direction downstream side X2 with respect to the 1st downstream conveyor part 13. As shown in FIG. The first downstream conveyor part 13 and the second downstream conveyor part 14 are arranged in the second area A2.

The intermediate conveyor part 15 is provided between the 1st upstream conveyor part 11 and the 1st downstream conveyor part 13 in the conveyance direction X of the conveyance conveyor 2. As shown in FIG. The intermediate conveyor part 15 is provided covering the first area A1 and the second area A2.

In addition, the 1st downstream conveyor part 13 corresponds to the downstream conveyor part provided in the conveyance direction downstream side X2 with respect to the door track 8. As shown in FIG.

The 1st upstream conveyor part 11, the 2nd upstream conveyor part 12, the 1st downstream conveyor part 13, and the 2nd downstream conveyor part 14 are equipped with 1 or several conveyor units 2U. The conveyor unit 2U includes a plurality of conveyance rollers 17 and a drive unit 18 that drives one of the plurality of conveyance rollers 17 to rotate. In the present embodiment, one of the plurality of transport rollers 17 provided in the conveyor unit 2U uses a motorized roller. wheel, and the driving part 18 is installed in the motor roller.

The plurality of conveyance rollers 17 included in the conveyor unit 2U are interlockingly connected by an interlocking portion 22 . In the present embodiment, the interlocking portion 22 is constituted by a plurality of interlocking belts, and these interlocking belts are wound so as to cover the two adjacent conveyance rollers 17 in the conveyance direction X. The conveyor unit 2U rotates one conveyance roller 17 (motor roller) by the drive of the drive part 18, and thereby rotates all the several conveyance rollers 17 with which the conveyor unit 2U is equipped. The conveyor unit 2U can convey the article W along the conveyance direction X by rotating the plurality of conveyance rollers 17 in this way.

In addition, the drive part 18 with which the 1st upstream conveyor part 11 is equipped is called "the 1st drive part 18A", and the drive part 18 with the 2nd upstream conveyor part 12 is called "the 2nd drive part 18B." , the driving unit 18 included in the first downstream conveyor unit 13 is referred to as a “third driving unit 18C”, and the driving unit 18 included in the second downstream conveyor unit 14 is referred to as a “fourth driving unit 18D”.

The intermediate conveyor part 15 is provided with the two conveyance rollers 17 and the drive part 18 which rotates and drives these two conveyance rollers 17. As shown in FIG. In this embodiment, motor rollers are used for the two conveying rollers 17 included in the intermediate conveyor unit 15 , and the driving unit 18 is attached to each of the two conveying rollers 17 . The intermediate conveyor unit 15 transports the article W along the transport direction X by driving the two drive units 18 to rotate the two transport rollers 17 respectively. In addition, the drive part 18 with which the intermediate conveyor part 15 is equipped is called "the 5th drive part 18E."

Also, the intermediate conveyor part 15 is equipped with: a support frame 29, which supports one of the two transport rollers 17; a swing frame 19, which supports two transport rollers. The remaining one of the sending rollers 17; the swinging roller 20 makes the swinging frame 19 rotate around the axis P; and the swinging driving part 21 makes the swinging roller 20 rotate. The support frame 29 is provided on the upstream side X1 in the transport direction with respect to the door track 8 , and the swing frame 19 is rotatably supported on the support frame 29 through the swing rollers 20 around the axis P. The oscillating roller 20 is composed of a motor roller, and the oscillating driving part 21 is installed in the oscillating roller 20 . The intermediate conveyor unit 15 rotates the swing roller 20 (motor roller) around the axis P by the drive of the swing drive unit 21 , thereby rotating the swing frame 19 around the axis P. By rotating the swing frame 19 around the axis P, the posture of the swing frame 19 can be changed between a conveyance posture (see FIG. 1 ) and a retreat posture (see FIG. 3 ).

The intermediate conveyor section 15 includes a first restricting section 23 and a second restricting section 24 . The first restricting portion 23 restricts the rotation of the swing frame 19 in the first rotation direction (counterclockwise in FIGS. 1 and 3 ) from the transfer posture by contacting the swing frame 19 in the transfer posture. The second restricting portion 24 restricts the rotation of the swing frame 19 from the retreat position to the second rotation direction (clockwise in FIGS. 1 and 3 ) by contacting the swing frame 19 in the retreat position. Furthermore, the direction in which the swing frame 19 rotates when the swing frame 19 is changed from the retreat posture to the transport posture is referred to as the first rotation direction, and the direction in which the swing frame 19 rotates when the swing frame 19 is changed from the transfer posture to the retract posture is referred to as the second rotation direction. Two directions of rotation.

The state in which the posture of the swing frame 19 has been changed to the conveyance posture is defined as the state in which the intermediate conveyor unit 15 is located at the "conveyor position", and the state in which the posture of the swing frame 19 has been changed to the retreat posture is defined as the intermediate conveyance position. The conveyer part 15 is in the state of "retreat position", and the intermediate conveyer part 15 is comprised so that it can move freely to a conveyance position and a retreat position.

As shown in FIG. 1 , the transfer position is a position where the intermediate conveyor section 15 intersects with the door track 8 and supports the article W conveyed by the transfer conveyor 2 . In the state where the intermediate conveyor section 15 is at the transfer position, a part of the intermediate conveyor section 15 is located in the door track 8, and by rotating and driving the conveying rollers 17 provided on the intermediate conveyor section 15, the The article W being supported is conveyed along the conveyance direction X by the conveyance rollers 17 .

As shown in FIG. 3 , the retracted position is a position where the intermediate conveyor section 15 and the door track 8 do not intersect. When the intermediate conveyor part 15 is in the retracted position, the entire intermediate conveyor part 15 retreats from the door track 8. Even if the fire door 1 moves from the open position to the closed position, the fire door 1 can still be avoided The case of the intermediate conveyor section 15.

As shown in FIG. 4, the control apparatus H is equipped with the 1st control unit H1, the 2nd control unit H2, the 3rd control unit H3, and the 4th control unit H4.

The first control unit H1 and the third control unit H3 are installed on the upstream side X1 of the conveying direction with respect to the door track 8 , and the second control unit H2 and the fourth control unit H4 are installed on the downstream side of the door track 8 in the conveying direction X2.

Each of the first control unit H1, the second control unit H2, the third control unit H3, and the fourth control unit H4 is connected to an upper controller (not shown) through a communication line. A normal driving signal from an upper controller (not shown) is input to each of the first control unit H1, the second control unit H2, the third control unit H3, and the fourth control unit H4. No. A control unit H1 controls the first upstream conveyor part 11 and the intermediate conveyor part 15 according to normal driving signals. The second control unit H2 controls the first downstream conveyor part 13 according to the normal driving signal. The third control unit H3 controls the second upstream conveyor part 12 according to the normal driving signal. The fourth control unit H4 controls the second downstream conveyor part 14 according to the normal driving signal. A normal drive signal such as a signal instructing driving of the conveyer 2 or a signal instructing stop of the conveyer 2 is transmitted to the control device H from the upper controller. In this embodiment, the normal driving signal is always input to the control device H in normal state.

The control device H executes the conveying control according to the normal drive signal from the upper controller, and the conveying control is to control the conveying conveyor 2 to convey the article W.

The first control unit H1 includes a time-limit blocking unit 25 which can block the supply of electric power to the first drive unit 18A and the fifth drive unit 18E by the sub-power supply unit 27 described later. In addition, the second control unit H2 includes a time-limit interrupting unit 25 that can interrupt the supply of electric power to the third drive unit 18C by the sub-power supply unit 27 . The time-limit interruption unit 25 interrupts the power supply to the drive unit 18 from the sub power supply unit 27 after a preset time elapses after the start of the power supply from the sub power supply unit 27 to the drive unit 18 .

Furthermore, the set time is set as: the time required to transport the article W at the end of the upstream side X1 in the transport direction of the first upstream conveyor part 11 from the door track 8 to the downstream side X2 in the transport direction, or set as more than its time. In this embodiment, the set time is set to 3 seconds. Also, this setting The time is set to be shorter than the time required for the fire door 1 to descend to a set height (the height at which the upper end of the article W conveyed by the conveying conveyor 2 is located) after the fire door 1 starts to descend. time. Furthermore, in the present embodiment, the time limit blocking unit 25 is constituted by a relay circuit.

The power feeding unit 3 includes a main power feeding unit 26 and a sub power feeding unit 27 .

The main power supply unit 26 is configured to supply power for driving to the first upstream conveyor unit 11, the second upstream conveyor unit 12, the first downstream conveyor unit 13, the second downstream conveyor unit 14, and the intermediate conveyor unit. Machine Department 15. The auxiliary power supply unit 27 is configured to supply the first upstream conveyor unit 11, the first downstream conveyor unit 13, and the intermediate conveyor unit 15 other than the second upstream conveyor unit 12 and the second downstream conveyor unit 14. Supply power for driving.

For further description of the auxiliary power supply part 27, the auxiliary power supply part 27 is set in the middle of the power supply path for the main power supply part 26 to supply power to the first upstream conveyor part 11, the first downstream conveyor part 13, and the intermediate conveyor part 15. . The sub power supply unit 27 includes a power storage device 28 that is charged by the supply of electric power from the main power supply unit 26 . In addition, in the state where the supply of electric power from the main power supply unit 26 has been interrupted, the auxiliary power supply unit 27 discharges the electric power stored in the power storage device 28, thereby supplying power to all but the second upstream conveyor unit 12 and the second downstream conveyor unit 12 . Electric power for driving is supplied to the first upstream conveyor section 11 , the first downstream conveyor section 13 , and the intermediate conveyor section 15 other than the conveyor section 14 . In addition, in this embodiment, a capacitor is used as the power storage device 28 .

The intermediate conveyor unit 15 is located at the transfer position while the power from the power supply unit 3 is being supplied. The supply of power is interrupted, and it moves from the conveyance position to the withdrawn position.

To further illustrate, in the state where driving power is being supplied to the intermediate conveyor part 15, the swing roller 20 can be rotated in the first rotation direction by the swing drive part 21, and by the rotation of the swing roller 20, the swing frame 19 The retreat posture is changed to the conveyance posture, and the swing frame 19 comes into contact with the first restricting portion 23, so that the swing frame 19 is kept in the conveyance posture. In the state where the electric power from the power supply unit 3 is being supplied in this way, since the swing frame 19 can be kept in the transport posture by the driving force of the swing drive unit 21, the intermediate conveyor unit 15 can be kept in the transport position.

And, after the supply of power for driving is cut off to the intermediate conveyor part 15, because the driving force of the swing driving part 21 will be lost, the swing frame 19 will move to the retracted position due to its own weight or the load of the swing roller 20, and swing The frame 19 comes into contact with the second restricting portion 24, so that the swing frame 19 is kept in the withdrawn posture. In the state where the power supply from the power supply unit 3 is blocked in this way, since the swing frame 19 can be kept in the withdrawn position by the self-weight of the swing frame 19 or the load of the swing rollers 20, the intermediate conveyor unit 15 can maintain in the withdrawn position.

As shown in FIG. 4 , the sub power supply unit 27 includes a first sub power supply unit 27A and a second sub power supply unit 27B. The first sub power supply unit 27A is provided on the conveyance direction upstream side X1 with respect to the door track 8 , and the second sub power supply unit 27B is provided on the conveyance direction downstream side X2 with respect to the door track 8 . The first auxiliary power supply unit 27A and the first control unit H1 are integrally held by the first holding body C1 , and as shown in FIGS. 1 and 3 , are installed using the space below the first upstream conveyor part 11 . The second auxiliary power supply unit 27B and the second The two control units H2 are integrated by being held by the second holding body C2, as shown in FIG. 1 and FIG.

The first upstream conveyor part 11 can receive the power supply from the main power supply part 26 or the power supply from the first auxiliary power supply unit 27A, and is controlled by the first control unit H1. The first downstream conveyor part 13 can receive the power supply from the main power supply part 26 or the power supply from the second auxiliary power supply unit 27B, and is controlled by the second control unit H2. The second upstream conveyor part 12 can receive the power supply from the main power supply part 26 and be controlled by the third control unit H3. The second downstream conveyor part 14 can receive the power supply from the main power supply part 26 and be controlled by the fourth control unit H4.

The intermediate conveyor part 15 can receive the supply of electric power from the auxiliary power supply unit provided on the retreat side, and is controlled by the control unit set on the same side (retreat side), which is upstream in the conveying direction with respect to the door track 8 Among the side X1 and the downstream side X2 in the conveyance direction, the side where the intermediate conveyor section 15 in the retracted position exists. In the present embodiment, as shown in FIG. 3 , the intermediate conveyor section 15 in the retracted position exists on the upstream side X1 in the conveying direction with respect to the door track 8 , and as shown in FIG. 4 , the intermediate conveyor section 15 is It receives the supply of electric power from the first auxiliary power supply unit 27A, and is controlled by the first control unit H1.

Therefore, in the state where driving power is being supplied to the conveying conveyor 2 from the main power supply unit 26 , driving power can be supplied to the first upstream conveyor unit 11 , the second upstream conveyor unit 12 , the first downstream conveyor unit 11 , and the first downstream conveyor unit 11 . delivery Machine part 13 , second downstream conveyor part 14 , and intermediate conveyor part 15 . In this state, the first drive unit 18A of the first upstream conveyor unit 11, the second drive unit 18B of the second upstream conveyor unit 12, Each of the third drive section 18C of the first downstream conveyor section 13, the fourth drive section 18D of the second downstream conveyor section 14, and the fifth drive section 18E of the intermediate conveyor section 15 can drive the article W It is conveyed from the second upstream conveyor part 12 to the second downstream conveyor part 14 .

Also, in the state where the main power supply unit 26 has cut off the supply of power for driving the conveying conveyor 2, although the second upstream conveyor unit 12 and the second downstream conveyor unit 14 are not supplied with power for driving, However, the electric power stored in the power storage device 28 is supplied to the first upstream conveyor section 11 , the first downstream conveyor section 13 , and the intermediate conveyor section 15 as driving electric power. In this state, the first driving unit 18A of the first upstream conveyor unit 11 and the third driving unit 18C of the first downstream conveyor unit 13 can be driven by the supply of driving power from the auxiliary power supply unit 27 . , and each of the fifth drive unit 18E of the intermediate conveyor unit 15 is driven, so that the article W can be conveyed from the first upstream conveyor unit 11 to the first downstream conveyor unit 13 . Also, in this state, since the second upstream conveyor part 12 or the second downstream conveyor part 14 is not supplied with driving power from any one of the main power supply part 26 and the sub power supply part 27, the second conveyor part cannot be driven. The second driving part 18B of the upstream conveyor part 12 or the fourth driving part 18D of the second downstream conveyor part 14 is driven, so the article W on the second upstream conveyor part 12 or the article W on the second downstream conveyor part 14 W will not be conveyed but will stop at these conveyor sections superior.

The article conveying equipment is equipped with: a door movement operation part 31, which can move the fire door 1 in the open position toward the closed position; a door detection part 32, which can detect the fire door 1 moving downward from the open position; a power supply interruption part 33, which can Cut off the power supply of the main power supply part 26 to the conveyor 2; the fire detection device 34 can detect fire; and the manual operation part 35 can be operated by the operator when the fire door 1 is moved to the closed position .

The fire detection device 34 is composed of a fire operation switch or a fire detection section, the above-mentioned fire operation switch can be operated by the operator when a fire occurs, and the above-mentioned fire detection section can detect the heat generated by the fire or cigarette. When the fire detection device 34 does not detect a fire, it sends a notification signal to the door movement operation part 31, the power supply interruption part 33, the first control unit H1, and the second control unit H2. Or when the fire detection unit detects heat or smoke and detects a fire, it stops sending the notification signal.

The door moving operation part 31 keeps the fire door 1 in the open position, and when it no longer receives the notification signal from the fire detection device 34, or receives the operation signal sent along with the manual operation part 35 being operated, it releases the fire door 1. Hold on to the fire door 1. The fire door 1 released from the hold by the door movement operation part 31 moves downward by its own weight, and moves from the open position to the closed position. In this way, when the fire detection device 34 detects a fire or when the manual operation unit 35 is operated, the fire door 1 is closed.

The door detection unit 32 includes a first door detection sensor 32A With the second door detection sensor 32B, the first door detection sensor 32A is arranged on the upstream side X1 of the conveyance direction with respect to the door track 8, and the second door detection sensor 32B is arranged at the side X1 relative to the door track 8. Downstream side X2 in conveying direction. In this embodiment, limit switches are used as the first door detection sensor 32A and the second door detection sensor 32B. When the first door detection sensor 32A has detected the fire door 1, the door detection signal will be sent to the first control unit H1 by the first door detection sensor 32A, and after the second door detection sensor 32B has When the fire door 1 is detected, the door detection signal will be sent to the second control unit H2 by the second door detection sensor 32B. Furthermore, the first door detection sensor 32A and the second door detection sensor 32B are arranged at the same height, so that the first door detection sensor 32A and the second door detection sensor 32B are connected to each other when the fire door 1 has been lowered from the open position. The second door detection sensor 32B can detect the fire door 1 simultaneously.

The power supply blocking unit 33 is provided on a power supply path of the main power supply unit 26 to the conveyance conveyor 2 . The power supply interruption part 33 is equipped with an operation switch, and the above-mentioned operation switch can be operated by the operator when the conveying conveyor 2 is stopped in an emergency. Along with this operation switch being operated by the operator, the main power supply part 26 can be cut off to the conveying and conveying. The power supply of machine 2. In addition, the power supply interrupting unit 33 can interrupt the supply of electric power to the transport conveyor 2 by the main power supply unit 26 as the reception of the notification signal is stopped. In this way, it becomes possible to shut off the supply of electric power for driving the transport conveyor 2 by the main power supply unit 26 as the fire detection device 34 detects a fire. When the power supply from the main power supply unit 26 has been interrupted by the power supply interruption unit 33 , the interruption signal is sent from the power supply interruption unit 33 to the first control unit H1 and the second control unit H2 .

The first control unit H1 is based on the door detection signal from the first door detection sensor 32A to detect the situation that the fire door 1 moves downward from the open position, and the second control unit H2 is based on the door detection signal from the second door detection sensor. The door detection signal of the detector 32B is used to detect the situation that the fire door 1 moves downward from the open position. Moreover, since the fire detection device 34 detects a fire and the notification signal cannot be sent to the first control unit H1 and the second control unit H2, the fire door 1 will be automatically closed, so the first control unit H1 and the second control unit H2 will automatically close. The second control unit H2 will no longer receive the notification signal from the fire detection device 34, so as to detect that the fire door 1 moves downward from the open position. That is, the first control unit H1 and the second control unit H2 function as the detection unit 36 , and the detection unit 36 detects that the fire door 1 moves downward from the open position.

When the control device H detects a downward movement by the detection unit 36, when the power supply from the main power supply unit 26 has been interrupted, and when the normal drive signal from the upper controller is no longer received In this case, it is judged that the transport conveyor 2 cannot operate normally, and the retraction control is executed. Moreover, the situation that the detection unit 36 has detected the downward movement of the fire door 1 includes: the situation that the fire door 1 is detected by the door detection unit 32 , and the situation that a fire is detected by the fire detection device 34 . That is, when the first door detection sensor 32A detects the fire door 1 located below the open position, or when the notification signal from the fire detection device 34 is no longer received, the detection unit 36 Descending movement detected. In this embodiment, the detection unit 36 detects the downward movement when the following two conditions are satisfied: the door detection unit 32 detects that the fire door 1 is located below the open position, and the fire door 1 is no longer connected. The situation of receiving the notification signal from the fire detection device 34.

Back-off control is the following control: After the control device H judges that the conveying conveyor 2 is not in a state of normal operation (specifically, after the control device H receives the door detection signal from the door detection part 32, or the control device H becomes After the notification signal from the fire detection device 34 is not received, or after the control device H receives the blocking signal from the power supply blocking part 33), before the set time passes, the auxiliary power supply part 27 sends a signal to the first upstream conveyor part. 11. The first downstream conveyor part 13 and the intermediate conveyor part 15 supply the power for driving. After the set time has passed, the auxiliary power supply part 27 is turned off to the first upstream conveyor part 11 and the first downstream conveyor part. The supply of electric power for driving the section 13 and the intermediate conveyor section 15.

By the way, when the door detection unit 32 detects the downward movement, the door detection unit 32 will immediately send the door detection signal to the control device H, and when the power supply from the main power supply unit 26 has been blocked by the power supply interruption unit 33 When the power supply is turned off, the power supply from the auxiliary power supply unit 27 to the driving unit 18 is immediately started. Therefore, the time when the door detection unit 32 detects the downward movement, the time when the sub power supply unit 27 starts supplying electric power to the driving unit 18, and the time when the control device H judges that the transport conveyor 2 is in a state of being unable to operate normally The point is the same.

Specifically, as shown in the flow chart of FIG. 5 , the control device H will execute the transport control when it is not in any of the following situations: the first control unit H1 and the second control unit H2 have received the door signal from the door detection unit 32. The situation of detection signal, the situation of no longer receiving the notification signal from the fire detection device 34, the situation of receiving the interruption signal from the power supply interruption unit 33, And the situation that the normal drive signal from the upper controller is no longer received. Moreover, the control device H will execute back-off control in any of the following situations: the first control unit H1 and the second control unit H2 have received the door detection signal from the door detection unit 32, and no longer receive the fire detection signal from the fire detection unit. The case of the notification signal from the device 34, the case of receiving the blocking signal from the power supply blocking unit 33, and the case of no longer receiving the normal driving signal from the upper controller.

When the control device H starts the execution of the retreat control, the first control unit H1 and the second control unit H2 receive the door detection signal from the door detection unit 32, do not receive the notification signal from the fire detection device 34, and receive the signal from the power supply. Either the blocking signal of the blocking unit 33 or the normal driving signal from the upper controller is not received.

The first control unit H1 and the second control unit H2 receive the door detection signal from the door detection part 32, do not receive the notification signal from the fire detection device 34, and receive the blocking signal from the power supply blocking part 33. In one case, that is, when the fire detection device 34 detects a fire and the fire door 1 moves downward from the open position, the supply of electric power from the main power supply unit 26 is interrupted. Therefore, when the control device H executes the retreat control, the second upstream conveyor section 12 and the second downstream conveyor section 14 stop because the power from the main power supply section 26 is cut off, while the first upstream conveyor section 11. The first downstream conveyor part 13 and the intermediate conveyor part 15 can be driven by the supply of electric power from the auxiliary power supply part 27 .

Also, when the first control unit H1 and the second control unit H2 do not receive the normal drive signal from the upper controller, although sometimes The supply of electric power of the main power supply part 26 is not interrupted, but in the retreat control, the second upstream conveyor part 12 and the second downstream conveyor part 14 are stopped, and the first upstream conveyor part 11, the first The downstream conveyor part 13 and the intermediate conveyor part 15 can be driven by the supply of electric power from the main power supply part 26 or the sub power supply part 27 .

In addition, the control device H receives the door detection signal from the door detection unit 32 when the first control unit H1 and the second control unit H2 no longer receive the notification signal from the fire detection device 34, and receives In any case of the interruption signal from the power supply interruption unit 33, the elapsed time after the information is input and the power supply is interrupted is measured, and after the elapsed time has passed the set time, the time limit is used to interrupt the signal. 25 to interrupt the power supply of the auxiliary power supply unit 27 to the first upstream conveyor unit 11, the first downstream conveyor unit 13, and the intermediate conveyor unit 15 to end the retraction control.

2. Other implementation forms

Next, another embodiment of the article conveyance facility will be described.

(1) In the above-mentioned embodiment, although the 1st downstream conveyor part 13 was fixed to the floor, you may fix the 1st downstream conveyor part 13 to a transport vehicle. When the first downstream conveyor part 13 is fixed to the transport vehicle in this way, in the state where the transport vehicle stops at the stop position on the downstream side X2 in the transport direction with respect to the intermediate conveyor part 15, according to the second upstream conveyor part 12. The first upstream conveyor part 11, the intermediate conveyor part 15, and the first downstream conveyor part 13 are used to convey the article W in sequence, and after the article W is loaded on the first downstream conveyor part 13 of the transport vehicle In the state, the transport vehicle is stopped from Position walk to carry item W.

(2) In the above embodiment, the supply of electric power from the sub power supply unit 27 is interrupted after the preset time has elapsed after the start of the supply of power from the sub power supply unit 27, but as shown in FIG. 2 , it may also be configured such that the inventory sensor 41 capable of detecting the existence of the article W on the door track 8 cannot be detected by the inventory sensor 41 after the power supply from the auxiliary power supply unit 27 starts. After the article W, the supply of electric power from the sub power supply unit 27 is interrupted.

(3) In the above-mentioned embodiment, although the sub power supply unit 27 is provided with the first sub power supply unit 27A and the second sub power supply unit 27B, it may also be configured such that the sub power supply unit 27 has a single sub power supply unit, and by This auxiliary power supply unit supplies driving electric power to each of the first upstream conveyor section 11 , the first downstream conveyor section 13 , and the intermediate conveyor section 15 .

(4) In the above-mentioned embodiment, although the control device H is equipped with the first control unit H1 and the second control unit H2, it may also be configured such that the control device H has a single control unit and is controlled by the control unit. Each of the first upstream conveyor section 11 , the first downstream conveyor section 13 , and the intermediate conveyor section 15 .

(5) In the above-mentioned embodiment, although the intermediate conveyor part 15 is configured to retreat to the upstream side X1 in the conveying direction, and receives power supply from the first sub power supply unit 27A, and is controlled by the first control unit H1, However, the intermediate conveyor section 15 may be configured to retreat toward the downstream side X2 in the conveying direction, receive power from the second sub power supply unit 27B, and be controlled by the second control unit H2.

(6) In the above-mentioned embodiment, although the conveyance rollers 17 provided in the intermediate conveyor part 15 are rotated by the driving of the driving part 18, the conveyance rollers 17 provided in the intermediate conveyor part 15 may be set as Free wheel.

(7) In the above embodiment, although the detection unit 36 has detected the fire door 1 located below the open position by the door detection unit 32 and no longer receives the notification signal sent by the fire detection device 34 In this case, the downward movement of the fire door 1 is detected, but it may also be configured such that the detection unit 36 is only when the door detection unit 32 has detected that the fire door 1 is located below the open position, or no longer In any of the cases where the notification signal from the fire detection device 34 is received, the downward movement of the fire door 1 is detected.

(8) Furthermore, the configurations disclosed in the above-mentioned embodiments may be applied in combination with the configurations disclosed in other embodiments, as long as there is no contradiction. Regarding other configurations, the embodiments disclosed in this specification are merely examples in all points. Therefore, various changes can be appropriately made without departing from the scope of the present invention.

3. Outline of the above embodiments

Hereinafter, the outline|summary of the article conveyance facility demonstrated above is demonstrated.

The article transport facility includes: a fire door that moves up and down to open and close; a transport conveyor that is installed below the fire door at an open position to transport articles; and a power supply unit that supplies driving power to the transport conveyor. , the aforementioned fire door can move downward from the aforementioned open position Moving to the closed position, the above-mentioned conveying conveyor is equipped with: a first upstream conveyor part, which is arranged on the upstream side of the conveying direction with respect to the moving track of the aforementioned fire door, that is, the door track; The conveyor part is arranged on the upstream side of the aforementioned conveying direction; the downstream conveyor part is arranged on the downstream side of the conveying direction with respect to the aforementioned door trajectory; Between the upstream conveyor part and the downstream conveyor part, the intermediate conveyor part is configured to be able to move freely to a transfer position and a retreat position, and the transfer position intersects with the door track and supports the material conveyed by the transfer conveyor The position of the article, the aforementioned retreat position is a position that does not intersect the track of the aforementioned door, and the aforementioned power supply unit includes: a main power supply unit for the aforementioned first upstream conveyor unit, the aforementioned second upstream conveyor unit, the aforementioned downstream conveyor unit, and The aforementioned intermediate conveyor portion supplies power for driving; and the auxiliary power supply portion can supply power to the first conveyor except the second upstream conveyor portion in a state where the power supply from the main power supply portion has been cut off. The upstream conveyor unit, the downstream conveyor unit, and the intermediate conveyor unit are supplied with electric power for driving, and the auxiliary power supply unit is provided with an electric storage device charged by the supply of electric power from the main power supply unit. The intermediate conveyor The unit is located at the conveyance position while the electric power from the power supply unit is being supplied, and moves from the conveyance position to the retracted position when the supply of electric power from the power supply unit is interrupted.

According to this configuration, although the second upstream conveyor unit is supplied with electric power only by the main power supply unit, the first upstream conveyor unit and the downstream conveyor unit are supplied with electric power by both the main power supply unit and the sub power supply unit. because Here, when the supply of electric power from the main power supply unit is cut off, although the second upstream conveyor unit stops and the article cannot be conveyed, the first upstream conveyor unit and the downstream conveyor unit can receive auxiliary power supply. Therefore, the electric power stored in the power storage device of the unit can be used to drive the first upstream conveyor unit and the downstream conveyor unit to convey articles. In addition, since the intermediate conveyor unit can be supplied with electric power stored in the power storage device of the auxiliary power supply unit, it is located at the transfer position. Therefore, when the supply of electric power from the main power supply part is cut off, since the second upstream conveyor part is stopped, it is possible to prevent articles from being conveyed from the second upstream conveyor part to the first upstream conveyor part, and Articles in the first upstream conveyor section, the downstream conveyor section, and the intermediate conveyor section can be conveyed toward the downstream side in the conveyance direction. Therefore, even if the supply of electric power from the main power supply unit is cut off, if an article exists on the door track, the article can still be conveyed to the downstream side of the door track in the conveying direction, and the article can be retracted from the door track. Instead, a situation where the fire door moving from the open position to the closed position interferes with the article can be avoided.

And, as the electric power from the auxiliary power supply part is cut off and the electric power to the conveying conveyor is cut off by the power supply part, the first upstream conveyor part, the second upstream conveyor part, and the downstream conveyor part are stopped, and intermediate conveyance Since the machine part moves from the transfer position to the retracted position, the intermediate conveyor part can be retracted from the door track, and the situation where the fire door moving from the open position to the closed position interferes with the intermediate conveyor part can be avoided.

In this way, since the fire door is moved downward along the door track from the open position to the closed position, it is possible to avoid the situation where the articles or the intermediate conveyor part interfere with the fire door, so that the fire door can be properly lowered to the closed position.

Here, it is preferable to further include: a time-limit interruption unit that interrupts the supply of electric power from the sub power supply unit after a preset time has elapsed after the start of supply of power from the sub power supply unit.

According to this configuration, the supply of electric power from the sub power feeding unit can be interrupted after the preset time has elapsed after the start of the supply of power from the sub power feeding unit. Therefore, the intermediate conveyor can be moved from the transfer position to the retracted position at an appropriate timing, and it is possible to avoid the situation where the fire door interferes with the intermediate conveyor portion due to a delay in moving the intermediate conveyor portion to the retracted position.

Furthermore, it is more desirable to have: a control device for controlling the aforementioned conveying conveyor; and a detection unit for detecting the descending movement of the aforementioned fire door from the aforementioned opening position to the downward movement, the aforementioned control unit having detected In the case of the aforementioned descending movement, back-off control will be executed, and the aforementioned back-off control is the following control: before the preset time has elapsed after the aforementioned down-moving is detected by the aforementioned detection unit, the aforementioned first power supply unit is operated by the aforementioned auxiliary power supply unit. The upstream conveyor part, the aforementioned downstream conveyor part, and the aforementioned intermediate conveyor part are supplied with driving power, and after the aforementioned set time has elapsed, the power supply to the aforementioned first upstream conveyor part, the aforementioned downstream conveyor part, and the aforementioned Power supply for driving the intermediate conveyor section.

According to this configuration, the first upstream conveyor section, the downstream conveyor section, and the intermediate conveyor section can be driven to convey articles before the preset time elapses after the detection section detects the downward movement. In addition, after the set time has elapsed, the first upstream conveyor section and the downstream conveyor section may be stopped, and the intermediate conveyor section may be moved to the retracted position. By this, After the fire door starts to descend, it is possible to properly convey the article and move the intermediate conveyor part to the retracted position until the fire door descends to a height that interferes with the conveying conveyor.

Furthermore, it is preferable that the aforementioned control device executes the aforementioned retraction when the supply of electric power from the aforementioned main power supply unit has been interrupted, in addition to the aforementioned detection unit having detected the aforementioned descending movement. control.

According to this configuration, even when the supply of electric power from the main power supply unit is interrupted, it is possible to avoid the situation where the article overlaps with the door track. Therefore, even when the fire door is lowered in a state where the power supply from the main power supply unit is interrupted, it is possible to avoid the situation where the articles or the intermediate conveyor part interfere with the fire door.

Also, preferably, the aforementioned auxiliary power supply unit includes a first auxiliary power supply unit and a second auxiliary power supply unit, the aforementioned control device includes a first control unit and a second control unit, and the aforementioned first auxiliary power supply unit and the aforementioned first control unit The aforementioned second auxiliary power supply unit and the aforementioned second control unit are arranged on the downstream side of the aforementioned conveying direction relative to the aforementioned door track, and the aforementioned first upstream conveyor unit can receiving the power supply from the first auxiliary power supply unit and being controlled by the first control unit, the downstream conveyor part can receive the power supply from the second auxiliary power supply unit and be controlled by the second control unit, The above-mentioned intermediate conveyor part can receive the supply of electric power from the auxiliary power supply unit arranged on the retreat side, and is controlled by the control unit arranged on the aforementioned retreat side, and the aforementioned retreat side is relative to the aforementioned door trajectory. Among the upstream side in the conveying direction and the downstream side in the conveying direction, the side where the intermediate conveyor section in the retracted position exists.

According to this configuration, the first sub-power supply unit that supplies power to the first upstream conveyor unit or the first control unit that controls the first upstream conveyor unit is arranged on the conveyor belt that exists in the first upstream conveyor unit with respect to the door track. direction upstream. In addition, the second auxiliary power supply unit for supplying power to the downstream conveyor unit or the second control unit for controlling the downstream conveyor unit is arranged on the conveying direction downstream side where the downstream conveyor unit exists with respect to the gate trajectory. In addition, the auxiliary power supply unit for supplying power to the intermediate conveyor unit or the control unit for controlling the intermediate conveyor unit is arranged on the side where the intermediate conveyor exists.

Therefore, there is no need to install the wiring connecting the conveying conveyor and the auxiliary power supply unit or the control device to cover the upstream and downstream sides of the conveying direction of the door tracks that are often separated by walls or the like. Therefore, installation of such wiring becomes easy.

Furthermore, preferably, the aforementioned detection unit detects the aforementioned descending movement when the following two conditions are met: the door detection unit detects that the aforementioned fire door is located below the aforementioned opening position, and no longer The situation of receiving the notification signal from the fire detection device.

According to this configuration, the notifying unit can detect the downward movement of the fire door when the normally transmitted notification signal is no longer received from the fire detection device, except when the fire door is actually detected. That is, although it can be considered that, for example, the fire detection device stops the transmission of the notification signal when a fire has been detected, and in conjunction with this, the fire door will move from the open position to the closed position, but with the change of receiving less than from fire According to the notification signal of the disaster detection device (detection of the falling movement of the fire door), the retraction control can be executed, so that the retraction control can be executed before the actual fire door is lowered, so the articles can be retracted quickly, and the intermediate conveyor can be moved. move to the withdrawn position.

The article transport facility includes: a fire door that moves up and down to open and close; a transport conveyor that is installed below the fire door at an open position to transport articles; and a power supply unit that supplies driving power to the transport conveyor. , the aforementioned article conveying equipment is equipped with a control device for controlling the aforementioned conveying conveyor, the aforementioned fire door can move downward from the aforementioned open position to the closed position, and the aforementioned conveying conveyor includes: a first upstream conveyor portion that moves relative to the aforementioned fire door The track, that is, the door track, is arranged on the upstream side of the conveying direction; the second upstream conveyor part is arranged on the upstream side of the aforementioned conveying direction relative to the first upstream conveyor part; the downstream conveyor part is arranged on the upstream side of the aforementioned door track. The downstream side of the conveying direction; and the intermediate conveyor part, which is arranged between the aforementioned first upstream conveyor part and the aforementioned downstream conveyor part in the conveying direction of the aforementioned conveying conveyor, and the aforementioned intermediate conveyor part is configured to be freely movable to The conveying position and the retracted position, the conveying position intersects the track of the door and supports the article conveyed by the conveying conveyor, the retracted position is a position not intersecting the track of the door, and the intermediate conveyor part is constituted It means that: in the state where the electric power from the power supply unit is being supplied, it is located at the conveyance position, and the supply of electric power from the power supply unit is interrupted to move from the conveyance position to the retracted position, and the control device judges that the When the conveying conveyor is not in a state of normal operation, back-off control is executed. The above-mentioned back-off control is The following control: Before the preset time elapses after it is judged that the conveying conveyor is not in a state of normal operation, the power supply unit controls the first upstream conveyor part, the downstream conveyor part, and the intermediate conveyor The electric power for driving is supplied to the above-mentioned first upstream conveyor portion, the downstream conveyor portion, and the intermediate conveyor portion after the preset time has elapsed.

According to this configuration, by executing the retraction control, the articles on the first upstream conveyor section, the downstream conveyor section, and the intermediate conveyor section can be conveyed toward the downstream side in the conveyance direction. Therefore, when the control device has judged that the conveying conveyor cannot operate normally, even if there is an article on the door track, the article can still be transported to the downstream side of the door track in the conveying direction by performing back-off control. Instead, the item is retracted from the door track. And, after the set time has elapsed, the first upstream conveyor section, the second upstream conveyor section, and the downstream conveyor section stop, and the intermediate conveyor section Since it moves from the transfer position to the withdrawn position, the intermediate conveyor section can be retracted from the door track, and the fire door moving from the open position to the closed position can avoid interfering with the intermediate conveyor section.

Therefore, when the conveying conveyor fails to operate normally, since the fire door can be prevented from interfering with the fire door when moving the fire door from the open position down the door track path to the closed position, the fire door can be properly adjusted. lowered to the closed position.

Furthermore, it is more desirable that the aforementioned control device detects that the aforementioned fire door moves downward from the aforementioned open position. Under the condition of not receiving the normal driving signal from the upper controller, it is judged that the above-mentioned conveying conveyor is not in a state of normal operation.

According to this configuration, when the downward movement of the fire door from the open position to the downward direction is detected, the control device can judge that the conveying conveyor is not in a normal operation state, and perform back-off control. Therefore, for example, when the fire door is moved to the closed position due to a fire, the article can be retracted from the door track, so that the fire door moving from the open position to the closed position can avoid interference with the article.

Or, if the communication line connecting the upper controller and the control device or the controller itself is abnormal, the normal drive signal will not be input to the control device, so the control device can judge that the conveyor is not in a normal operation state, Instead, backoff control is performed. Therefore, for example, when the fire door is moved to the closed position when an abnormality occurs in the controller, etc., the article can be retracted from the door track, so that the fire door that moves from the open position to the closed position can avoid interfering with the article. situation.

Also, preferably, the power supply unit includes: a main power supply unit for supplying driving power to the first upstream conveyor unit, the second upstream conveyor unit, the downstream conveyor unit, and the intermediate conveyor unit. and the auxiliary power supply unit, in the state where the power supply from the aforementioned main power supply unit has been cut off, can supply the aforementioned first upstream conveyor unit and the aforementioned downstream conveyor unit except the aforementioned second upstream conveyor unit; , and the above-mentioned intermediate conveyor portion supplies power for driving, and the above-mentioned auxiliary power supply portion includes: an electric storage device, which is charged by the supply of electric power from the aforementioned main power supply portion, and the aforementioned control device In case of being blocked, That is, it is judged that the conveying conveyor is in a state of being unable to operate normally, and the aforementioned back-off control is the following control: before the aforementioned set time elapses after it is judged that the conveying conveyer is in a state of being unable to operate normally, the auxiliary power supply unit controls the first The upstream conveyor part, the aforementioned downstream conveyor part, and the aforementioned intermediate conveyor part are supplied with driving power, and after the aforementioned set time has elapsed, the power supply to the aforementioned first upstream conveyor part, the aforementioned downstream conveyor part, and the aforementioned Power supply for driving the intermediate conveyor section.

According to this configuration, although the second upstream conveyor unit is supplied with electric power only by the main power supply unit, the first upstream conveyor unit and the downstream conveyor unit are supplied with electric power by both the main power supply unit and the sub power supply unit. Therefore, when the supply of electric power from the main power supply unit is cut off, although the second upstream conveyor unit stops and the article cannot be conveyed, the first upstream conveyor unit and the downstream conveyor unit can receive auxiliary power supply. Therefore, the electric power stored in the power storage device of the unit can be used to drive the first upstream conveyor unit and the downstream conveyor unit to convey articles.

Therefore, when the supply of electric power from the main power supply part is cut off, since the second upstream conveyor part is stopped, it is possible to prevent articles from being conveyed from the second upstream conveyor part to the first upstream conveyor part, and Articles in the first upstream conveyor section, the downstream conveyor section, and the intermediate conveyor section can be conveyed toward the downstream side in the conveyance direction. Therefore, even if the supply of electric power from the main power supply unit is cut off, if an article exists on the door track, the article can still be conveyed to the downstream side of the door track in the conveying direction, and the article can be retracted from the door track. Instead, a situation where the fire door moving from the open position to the closed position interferes with the article can be avoided. And, after the set time has passed Afterwards, with the interruption of the power from the auxiliary power supply unit and the interruption of the power supply from the power supply unit to the conveying conveyor, the first upstream conveyor unit, the second upstream conveyor unit, and the downstream conveyor unit will stop, and the intermediate conveying Since the machine part moves from the transfer position to the retracted position, the intermediate conveyor part can be retracted from the door track, and the situation where the fire door moving from the open position to the closed position interferes with the intermediate conveyor part can be avoided.

In this way, when the fire door is moved downward from the open position to the closed position, it is possible to prevent the fire door from interfering with objects, so that the fire door can be properly lowered to the closed position.

Industrial availability

The technique of this disclosure can be utilized in the article conveyance facility equipped with a fire door, a conveyance conveyor, and a power supply part.

3‧‧‧Power Supply Department

11‧‧‧The first upstream conveyor department

12‧‧‧The second upstream conveyor department

13‧‧‧First Downstream Conveyor Department (Downstream Conveyor Department)

14‧‧‧Second downstream conveyor department

15‧‧‧Intermediate Conveyor Department

18‧‧‧Drive Department

18A‧‧‧First drive unit

18B‧‧‧Second drive unit

18C‧‧‧The third driving unit

18D‧‧‧Fourth drive unit

18E‧‧‧The fifth drive unit

21‧‧‧Swing drive unit

25‧‧‧Time Interruption Unit

26‧‧‧Main power supply department

27‧‧‧Deputy Power Supply Department

27A‧‧‧The first auxiliary power supply unit

27B‧‧‧Second auxiliary power supply unit

28‧‧‧Power storage device

31‧‧‧Door mobile operation part

32‧‧‧Door Inspection Department

32A‧‧‧The first door detection sensor

32B‧‧‧Second door detection sensor

33‧‧‧Power supply interruption unit

34‧‧‧Fire detection device

35‧‧‧Manual operation part

36‧‧‧Detection Department

C1‧‧‧first holder

C2‧‧‧Second Holder

H‧‧‧control device

H1‧‧‧The first control unit (detection part)

H2‧‧‧The second control unit (detection part)

H3‧‧‧The third control unit

H4‧‧‧4th control unit

Claims (10)

An article transporting device comprising the following: a fire door that moves up and down to open and close; a transport conveyor installed below the fire door at an open position to transport articles; and a power supply unit that supplies drive to the transport conveyor The above-mentioned article conveying equipment has the following characteristics: the above-mentioned fire door can move downward from the above-mentioned open position to the closed position, and the above-mentioned conveying conveyor has: the first upstream conveyor part, relative to the moving track of the above-mentioned fire door. The door track is arranged on the upstream side of the conveying direction; the second upstream conveyor part is arranged on the upstream side of the conveying direction relative to the first upstream conveyor part; the first downstream conveyor part is arranged on the upstream side of the aforementioned door track. The downstream side of the conveying direction; the second downstream conveyor part is arranged on the downstream side of the conveying direction relative to the first downstream conveyor part; and the intermediate conveyor part is arranged on the first upstream in the conveying direction of the conveying conveyor Between the conveyor part and the first downstream conveyor part, the intermediate conveyor part is configured to be freely movable to a transfer position and a retreat position, and the transfer position intersects the track of the door and supports the The position of the article, the aforementioned retreat position is a position that does not intersect with the aforementioned door trajectory, and the aforementioned power supply unit includes: a main power supply unit for the aforementioned first upstream conveyor unit, the aforementioned second upstream conveyor unit, and the aforementioned first downstream conveyor part, the aforementioned second downstream conveyor part, and the aforementioned intermediate conveyor part to supply power for driving; The aforementioned first upstream conveyor section, the aforementioned first downstream conveyor section, and the aforementioned intermediate conveyor section other than the second upstream conveyor section and the aforementioned second downstream conveyor section supply power for driving, and the aforementioned auxiliary power supply section includes: The power storage device is supplied with power from the aforementioned main power supply unit For charging, the intermediate conveyor unit is located at the transfer position while the power from the power supply unit is being supplied, and moves from the transfer position to the retracted position as the power supply from the power supply unit is interrupted. , the aforementioned article conveying equipment further comprises: a control device that controls the aforementioned conveying conveyor; and a detection unit that detects the downward movement of the aforementioned fire door from the aforementioned open position to the downward movement, and the aforementioned control unit has detected the downward movement of the aforementioned fire door at the aforementioned detection unit In the case of the aforementioned descending movement, back-off control is performed. The aforementioned back-off control is the following control: Before the preset time has elapsed after the aforementioned falling movement is detected by the aforementioned detection unit, the aforementioned first upstream The conveyor unit, the first downstream conveyor unit, and the intermediate conveyor unit are supplied with drive power, and after the set time has elapsed, the power supply to the first upstream conveyor unit and the first downstream conveyor unit is turned off. , and the supply of electric power for driving the aforementioned intermediate conveyor section. The article conveying device according to claim 1, further comprising: a time-limit interruption unit that interrupts the supply of power from the sub-power supply unit after a preset time has elapsed after the start of supply of power from the sub-power supply unit. The article conveying facility according to claim 1 or 2, wherein the control device, except when the detection unit has detected the descending movement, when the power supply from the main power supply unit has been interrupted, The aforementioned back-off control is also performed. The item conveying equipment according to claim 1 or 2, wherein the aforementioned auxiliary power supply unit includes a first auxiliary power supply unit and a second auxiliary power supply unit, the aforementioned control device includes a first control unit and a second control unit, and the aforementioned first auxiliary power supply unit and The first control unit is provided on the upstream side of the conveying direction with respect to the door track, and the second sub-power supply unit and the second control unit It is installed on the downstream side of the conveying direction with respect to the gate trajectory, the first upstream conveyor part can receive the power supply from the first auxiliary power supply unit, and is controlled by the first control unit, and the first downstream conveyor The machine part can receive the supply of electric power from the aforementioned second auxiliary power supply unit and be controlled by the aforementioned second control unit. The control unit on the evacuation side is controlled by the evacuation side, which is the side where the intermediate conveyor section in the evacuation position exists between the upstream side in the conveyance direction and the downstream side in the conveyance direction with respect to the door trajectory. The article conveying equipment as in Claim 1 or 2 further includes: a door detection unit capable of detecting the aforementioned fire door located below the aforementioned open position; and a fire detection device capable of notifying a signal if no fire is detected sent to the aforementioned detection unit, and stop the transmission of the aforementioned notification signal when a fire has been detected. The aforementioned detection unit detects the aforementioned downward movement when the following two conditions are satisfied: the aforementioned door detection unit detects that The situation of the above-mentioned fire door lower than the above-mentioned opening position, and the situation of no longer receiving the above-mentioned notification signal from the above-mentioned fire detection device. An article transporting device comprising the following: a fire door that moves up and down to open and close; a transport conveyor installed below the fire door at an open position to transport articles; and a power supply unit that supplies drive to the transport conveyor The above-mentioned article conveying equipment has the following characteristics: the above-mentioned article conveying equipment further has: a control device to control the aforementioned conveying conveyor, the aforementioned fire door can move downward from the aforementioned open position to the closed position, and the aforementioned conveying conveyor has: The first upstream conveyor section, relative to the movement of the aforementioned fire doors The moving track, that is, the door track, is arranged on the upstream side of the conveying direction; the second upstream conveyor part is arranged on the upstream side of the aforementioned conveying direction relative to the first upstream conveyor part; The second downstream conveyor part is arranged on the downstream side of the conveying direction relative to the first downstream conveyor part; and the intermediate conveyor part is arranged on the conveying direction of the aforementioned conveying conveyor. Between the first upstream conveyor part and the first downstream conveyor part, the intermediate conveyor part is configured to be freely movable to a transfer position and a retreat position, and the transfer position intersects with the door track and supports The position of the article conveyed by the machine, the aforementioned retreat position is a position that does not intersect with the aforementioned door track, and the aforementioned intermediate conveyor unit is configured to be located at the aforementioned transport position while the power from the aforementioned power supply unit is being supplied, accompanied by When the supply of electric power from the power supply part is interrupted and moves from the transfer position to the retreat position, the power supply part includes: a main power supply part for the first upstream conveyor part, the second upstream conveyor part, the The first downstream conveyor part, the second downstream conveyor part, and the intermediate conveyor part are supplied with electric power for driving; and the auxiliary power supply part is in a state where the power supply from the main power supply part is interrupted, Electric power for driving may be supplied to the first upstream conveyor section, the first downstream conveyor section, and the intermediate conveyor section other than the second upstream conveyor section and the second downstream conveyor section. The auxiliary power supply unit includes an electric storage device charged by the supply of electric power from the main power supply unit, and the control device executes back-off control when it is judged that the conveyer is not in a normal operation state. The back-off control is as follows: Control: before the preset time elapses after it is judged that the conveying conveyor is in a state of being unable to operate normally, the auxiliary power supply unit will control the first upstream conveyor part, the first downstream conveyor part, and the intermediate conveying Machine supply drive After the set time has elapsed, the supply of electric power for driving the first upstream conveyor section, the first downstream conveyor section, and the intermediate conveyor section is cut off. The article conveying equipment as claimed in claim 6, wherein the control device has detected the downward movement of the fire door from the open position to the bottom, or the condition that the normal drive signal is no longer received from the upper controller , that is, it is judged that the aforementioned transport conveyor is in a state of being unable to operate normally. The article conveying facility according to claim 6 or 7, wherein the control device judges that the conveying conveyor is not in a normal operation state when the power supply from the main power supply unit is interrupted. An article transporting device comprising the following: a fire door that moves up and down to open and close; a transport conveyor installed below the fire door at an open position to transport articles; and a power supply unit that supplies drive to the transport conveyor The above-mentioned article conveying equipment has the following characteristics: the above-mentioned fire door can move downward from the above-mentioned open position to the closed position, and the above-mentioned conveying conveyor has: the first upstream conveyor part, relative to the moving track of the above-mentioned fire door. The door track is arranged on the upstream side of the conveying direction; the second upstream conveyor part is arranged on the upstream side of the conveying direction relative to the first upstream conveyor part; the downstream conveyor part is arranged on the conveying direction relative to the gate track a downstream side; and an intermediate conveyor section disposed between the first upstream conveyor section and the downstream conveyor section in the conveying direction of the conveying conveyor, the intermediate conveyor section being configured to be freely movable to a conveying position and the retracted position, the conveying position intersects the door trajectory and supports the article conveyed by the conveying conveyor, and the retracted position does not intersect the door trajectory, The power supply unit includes: a main power supply unit that supplies drive power to the first upstream conveyor unit, the second upstream conveyor unit, the downstream conveyor unit, and the intermediate conveyor unit; In the state where the power supply from the main power supply unit is interrupted, the first upstream conveyor unit, the downstream conveyor unit, and the intermediate conveyor unit other than the second upstream conveyor unit can be The power for driving is supplied, and the auxiliary power supply unit is equipped with an electric storage device charged by the supply of power from the main power supply unit, and the intermediate conveyor unit is located on the conveying unit while the power from the power supply unit is being supplied. The position moves from the conveyance position to the retracted position as the supply of electric power from the power supply unit is interrupted, and the sub power supply unit includes a first sub power supply unit and a second sub power supply unit, and controls the control of the transport conveyor. The device has a first control unit and a second control unit, the first auxiliary power supply unit and the first control unit are arranged on the upstream side relative to the door track, and the second auxiliary power supply unit and the second control unit are opposite to each other. Installed on the downstream side of the door track, the first upstream conveyor part can receive the power supply from the first auxiliary power supply unit, and is controlled by the first control unit, and the downstream conveyor part can receive power from the first auxiliary power supply unit. The power supply of the two auxiliary power supply units is controlled by the second control unit, and the intermediate conveyor part can receive the power supply from the auxiliary power supply unit installed on the following side, and is controlled by the control unit installed on the same side Controlling, the said side is the side where the said intermediate conveyor part exists in the state which exists in the state of the said retreat position among the conveyance direction upstream side and the conveyance direction downstream side with respect to the said door trajectory. An article conveying device, comprising the following: The fire door is opened and closed by moving up and down; the conveying conveyor is installed under the fire door in the open position to convey articles; and the power supply unit supplies driving power to the conveying conveyor, and the article conveying equipment It has the following features: the aforementioned article conveying equipment further includes: a control device for controlling the aforementioned conveying conveyor, the aforementioned fire door can move downwards from the aforementioned open position to the closed position, and the aforementioned conveying conveyor has: a first upstream conveyor part, opposite to The moving track of the aforementioned fire door, that is, the door track, is arranged on the upstream side of the conveying direction; the second upstream conveyor part is arranged on the upstream side of the conveying direction relative to the first upstream conveyor part; The aforementioned door track is arranged on the downstream side of the conveying direction; and the intermediate conveyor part is arranged between the aforementioned first upstream conveyor part and the aforementioned downstream conveyor part in the conveying direction of the aforementioned conveying conveyor, and the aforementioned intermediate conveyor part is It is configured to be freely movable to a conveying position that intersects the track of the door and supports the article conveyed by the conveying conveyor, and a retreat position that does not intersect the track of the door, and the The intermediate conveyor unit is configured to be located at the conveyance position while the electric power from the power supply unit is being supplied, and to move from the conveyance position to the retracted position when the supply of electric power from the power supply unit is interrupted, The power supply unit includes: a main power supply unit that supplies drive power to the first upstream conveyor unit, the second upstream conveyor unit, the downstream conveyor unit, and the intermediate conveyor unit; In the state where the power supply from the main power supply unit is interrupted, the first upstream conveyor unit, the downstream conveyor unit, and the intermediate conveyor unit other than the second upstream conveyor unit can be The electric power for driving is supplied, and the aforementioned auxiliary power supply unit is equipped with an electric storage device, which is supplied by the electric power from the aforementioned main power supply unit. For charging, the control device executes back-off control when it is judged that the conveying conveyor is not in a normal operation state. The back-off control is the following control: Before the set time, the power supply unit supplies driving power to the first upstream conveyor part, the downstream conveyor part, and the intermediate conveyor part, and after the set time has elapsed, the power supply to the first conveyor part is cut off. A power supply for driving the upstream conveyor part, the downstream conveyor part, and the intermediate conveyor part, the auxiliary power supply part has a first auxiliary power supply unit and a second auxiliary power supply unit, and the control device has a first control unit and the second control unit, the aforementioned first auxiliary power supply unit and the aforementioned first control unit are arranged on the upstream side of the aforementioned conveying direction relative to the aforementioned door track, and the aforementioned second auxiliary power supply unit and the aforementioned second control unit are located relative to the aforementioned The door track is set on the downstream side of the conveying direction, the first upstream conveyor part can receive the power supply from the first auxiliary power supply unit, and is controlled by the first control unit, and the downstream conveyor part can receive power from the aforementioned The power supply of the second auxiliary power supply unit is controlled by the second control unit, and the intermediate conveyor part can receive the power supply from the auxiliary power supply unit installed on the evacuation side, and is controlled by the control unit installed on the evacuation side. In the control, the retracted side is the side where the intermediate conveyor section in the retracted position exists between the upstream side in the conveying direction and the downstream side in the conveying direction with respect to the door trajectory.

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