JPH03211107A - Conveyor device - Google Patents

Abstract

PURPOSE:To simplify structure and prevent the damage of a work in a conveyor device for conveying a round article such as a roll by providing an approximately V-shaped incliningly rotating base at a movable base, and providing a buffer serving stopper protrusively more on the conveying side receiving face of the incliningly rotating base than an incliningly rotating shaft in such a way as to be rotated downward on the conveying side receiving face side. CONSTITUTION:In the state of a bias travel truck 31 being stopped at the upper end as well as a receiving face 32a being positioned on the upper side and a receiving plate 32b being positioned slightly lower than a body part 24, the cylinder 27 of a carry-out base 20 is operated to lift an incliningly rotating arm 25. A work 10 is thus placed on an incliningly rotating base 32. At this time, the work 10 touches the tip of a stopper arm 36 and is transferred while receiving the buffer action of a cylinder device 37. When the stopper arm is lowered into the specified position, an unillustrated solenoid valve is turned on to perform the first stage forced descent of the receiving face 32a so as to place the work 10 completely on the incliningly rotating base 32. The bias travel truck 31 is then lowered by a motor 53, and the receiving face 32b side is lowered by the cylinder 37.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a device for conveying circular objects such as rolls and pipes between upper and lower parts.

[Conventional technology]

One method for transporting loads between the upper and lower levels is to use a transport vehicle and an elevator. In this system, a loaded cart is loaded into an elevator and the elevator is raised and lowered. (Japanese Patent Publication No. 61-4914) Furthermore, as a means that does not use a trolley, a transfer device is used on the elevator side to transport loads between the elevator and the trolley. Many transfer devices are fork devices that have a loading part that can move forward and backward.

(Problem to be solved by the invention disclosed in JP-A-56-43107 No. 6) In the former prior art, the transport vehicle is made to enter the elevator, so if the wheel diameter of the transport vehicle is small, the elevator If the stopping position is inaccurate (if there is a difference in level), it is difficult for the cart to enter and exit.Furthermore, since the cart is mounted on an elevator, a large number of carts are required, which is expensive.

In addition, the latter conventional technology requires a fork device,
It's expensive. Furthermore, it also requires a relatively large amount of time.

An object of the invention is to provide an inexpensive device.

[Means to solve the problem]

The present invention includes a movable table that reciprocates between an upper part and a lower part;
A tilting table having two receiving surfaces as a recess in the center for supporting at least two points in the circumferential direction of a circular object, and installed on the movable table so as to be rotatable around the recess. ,
a first driving device installed on the movable base for horizontally rotating the receiving surface on the transport destination side of the two receiving surfaces when the movable base is located at the transport destination; A stopper arm is installed on the movable table and protrudes upwardly from the receiving surface located at the destination, and rotates downward on the receiving surface on the destination side, and the stopper arm gradually rotates downward. A buffer cylinder device that rotates the circular object, and a receiving point that is installed at the exit light of the circular object and supports two points in the circumferential direction of the circular object, such as the receiving point on the side remote from the moving table. The present invention is characterized by a configuration consisting of a tilting arm that can rise toward the movable table and a second drive device that rotates the tilting arm.

[For production]

When the tilting arm is raised using the N2 drive device, the circular object rolls toward the tilting table of the movable table and is placed thereon. At this time, the stopper arm gradually descends to prevent damage to the circular object (place it on the tilt table).

Next, when the moving table moves toward the output light, the first drive device operates to rotate the tilting table and roll the circular object toward the output light.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. 1 to 5.

lO is a circular object as a load, for example a roll of paper. A is an unloading platform from which the load is transported, and is located at a higher location than between the unloading beams. Reference numeral 30 denotes a conveyance device that receives the circular object 10 from the carry-out white cloud and conveys it to the carry-out light. The output light ω is just a stand.

The unloading platform has a total of four rollers 21 that support the lower surface of the circular object 10. Zl! have. Between the roller 21 and the roller n, there is a space in which the fork rig 15 of the stacker crane carrying the circular object 10 can be raised and lowered. This fork device 15 moves the circular object lO to the roller 21. Put it on Z2.

The roller 4 on the transport device t30 side is located at the upper end of the main body portion (fixed portion) 24 of the unloading platform prisoner. Roller n is at the upper end of tilting arm δ. The tilting arm 5 rotates about the center provided in the main body row, and when rotated upward,
approaches the conveying device [30 side] and pushes the circular object 10 toward the conveying device side. The circular object 10 rolls on the upper end of the main body from the roller roller and rolls toward the conveying device W130. n is a cylinder device that rotates the tilting arm 5.

The transport device +130 will be explained. The transport device [30 includes a diagonal truck 31 as a moving platform that connects the upper and lower parts, a tilt table 6 that supports the diagonal truck 31, and a group of drive devices that move the diagonal truck 31 up and down.

The skewed carriage 31 runs along the rail truss on the upper surface of the slanted platform 6. The chino 59 fixed to the tilting cart 31 has a sprocket 51 installed at the upper end of the ramp, a sprocket 52 at the bottom of the ramp 6, a sprocket 8 on the output shaft of the motor group,
It is fixed to the diagonal carriage 31 via the sprocket 5, the sprocket shell for tensioning, and the sprocket 57 installed at the lower end of the inclined table 6 in this order.

The motor group rotates in forward and reverse directions to raise and lower the skewed carriage 31.

The upper end of the inclined table 6 is located below the roller 21, and the lower end is located below the output light ω.

The skewed carriage 31 will be explained. At the upper end of the skewed carriage 31, there is a tilting table section on which the circular object 10 can be placed.

The tilting feather has two receiving surfaces 32a, 32 facing slightly upward.
There is b. The receiving surfaces 32a and 32b support two points in the circumferential direction of the circular object 10, similarly to the roller 21n. The tilting mechanism rotates in the radial direction of the circular object 1O with the center near the middle between the receiving surfaces 32a and 32b.

A is a cylinder device as a driving device for rotating the tilting table 31. The cylinder device A is a hydraulic cylinder device, an air cylinder device, or an electric cylinder device.

When the extending cart 31 is located at the upper end, the receiving surface 3 of the tilting white sheet
2b is approximately horizontal. However, this horizontal state is a state in which the circular object 10 does not roll down from the receiving surface 32b. That is, the receiving surface 32b faces slightly diagonally upward. Alternatively, a protrusion facing upward is provided at the tip 32c of the receiving surface 32b, so that the transfer surface of the circular object IO is slightly diagonally upward.

When the tilting carriage 31 descends, the tilting table n is in this state.

When the oblique carriage 31 descends to the lower end, the rod of the cylinder device descends, causing the tilting platform to tilt.

A is the stopper arm, which rotates vertically around the center of rotation of the tilting Kinzo. The stopper arm protrudes upward from an opening provided in the tilting table.

The cylinder device is a shock absorbing cylinder device for gradually rotating the stopper arm holder toward the receiving surface 32a, and is installed on the inclined truck 31. The cylinder device [37 is a two-stage stroke type pneumatic cylinder device. When the cylinder device m1.37 generates a force that rotates the stopper arm downward,
Gradually rotate the stopper arm downward.

When the roller at the tip of the stopper arm gradually descends to the vicinity of the receiving surface 32, it is forced to descend thereafter. This forced lowering command is issued by a detector 41 (mechanical limit switch,
or photoelectric detector or proximity switch). This is because when the roller A descends to this position, the collision force of the circular object 10 is reduced. When a forced descent occurs,
Roller A is below the receiving surface 32m.

When the diagonal truck 31 descends to the lower end, the cylinder device 135 moves the receiving surface 32 in order to roll and release the circular object 10.
Lower a. At this time, in order to simultaneously lower the stopper arm A, the cylinder device n is further driven to rotate the stopper arm A.

For this reason, the cylinder assembly [37 is of a two-stage stroke type. This configuration is known.

According to Figure 5, cylinder installation! The configuration of 37 and the arrangement of equipment for operating it will be explained.

The cylinder device 137 is axially divided into two chambers, each having a piston 37a, 37b.

A stopper arm is connected to the rod of one piston 37a.

71 is an air pressure source, 72 is a regulator valve,
The pressure in the chamber on the piston 37a side is controlled. When the pressure exceeds the set pressure, it opens to the discharge side. The discharge rate is determined by a throttle valve 73. 74 is a silencer, and 75 is a check valve.

Is the release set pressure of regulator valve 72 a solenoid valve? 6
．． It is determined by a command device consisting of 77 and 78, a pressure reducing valve (equipment), and 81 and 82. One solenoid valve and one pressure reducing valve are connected in series to form a set, and three sets are connected in parallel. The discharge set pressures of the pressure reducing valves 81 and 82 are different. The solenoid valves 76, 77, and 78 are normally OFF, but when the circular object lO is to be transported from the unloading table to the tilting table, one of the solenoid valves 76, 78 is selected and turned ON. Become. For example, when the solenoid valve 76 is selected, a passage 76a connects the regulator valve n and the pressure reducing valve, and the pressure connected between the pressure reducing valves releases the regulator valve isg.

One of the solenoid valves 76, 77, 78 is selected depending on the weight of the circular object 10. Therefore, the descending speed of the stopper arm field changes depending on the stacking of the objects, so that damage to the circular objects can be prevented. A command is given to select one of the solenoid valves 76, 77, and 78 from a total of 1i machines at the higher level.

The part is a solenoid valve that returns the cylinder assembly [37 to its original state after releasing the circular object 10 at the destination port from the tilting table. At this time, air flows through the passage 85a. After returning, Solenoid valve δ is turned OFF.

When the nail received the circular object 10 from the unloading station to the tilting cover,
This is a solenoid valve for forcibly lowering the stopper arm which has been lowered to the vicinity of the receiving surface 32a. At this time, the electromagnetic valve 87 is turned on, and the air enters the left side chamber of the cylinder device 137 via the passage 871 and the check valve section. This causes the piston 37a to move to the right, the rod to retreat, and the stopper arm to lower. The piston 37a that has moved to the right hits the rod of the piston 37b and stops moving. At this time, air pressure is acting on the right-hand chamber of the cylinder in which the piston 37b exists via the passage 90a of the electromagnetic valve head and the check valve 91. This air pressure is the same as the air pressure applied to the chamber on the left side of piston 37m, so piston 3
The movement of the piston 37m stops when the piston 7m hits the rod of the piston 37b. n is a throttle valve.

The solenoid valve head switches the passage when operating the cylinder arrangement [35] to eject the circular object 10 from the tilting table of the moving carriage 31. By this switching, the passage 93 connected to the chamber on the right side of the piston 37b is opened to the atmosphere via the passage 90c. The chamber on the left side of the piston 37b is connected to the air source 7 via the check valve %, the passage example, and the passage 90e of the solenoid valve head.
Connected to 1. % is the throttle valve.

When the passages 93 and 94 are connected to the passages 90C and 90d, the piston 37b moves to the right, and the stopper arm can be further lowered.

The switching of the electromagnetic valve head for this purpose may be faster than the operation of the cylinder device i35.

After the circular object 10 is released from the tilting table n, when the stopper arm % is to be returned, the electromagnetic valve head is energized in the opposite direction to disconnect the passages 90c and 90d from the passages 93 and 94. At the same time, the solenoid valve 87 is turned off. As a result, the rod of the piston 37a of the cylinder device M protrudes greatly and returns to its original position.

The chamber on the left side of the piston 37a is a passageway, a throttle valve section,
It is connected to an air source via a solenoid valve 87.

The chamber on the right side of the piston 37a is connected to an air source 71 via a passageway and a regulator valve 72.

Note that various detectors (not shown) are provided for detecting the position of the skewed carriage 31, the presence or absence of a load on the slanted platform, and the like. Thereby, the cylinder devices 4, 37 and the motor group can be operated automatically.

Note that the cylinder device 137 can also be of a normal one-stage type. In this case, during the first forced descent, the circular object 10 is lowered to a position where it can be released.

The operation in this configuration will be explained.

The circular object 10 is placed in a state where the tilting arm 5 of the money removal unit is lowered.
will be listed in the cash withdrawal section. It is done with a stub cuff lane fork device. Also, at this time, the solenoid valve 76
, 77, 78 is selected and turned ON.

When the tilting table 31 is stopped at the upper end and the receiving surface 32a is located on the upper side, the cylinder device n for discharging money is operated to raise the tilting arm δ. As a result, circular object 1
0 rolls on the upper end of the main body part Sae and rests on the tilting table n.

When the circular object 10 is placed on the tilting white plate, it first hits the tip of the stopper arm, so the cylinder is installed! ! The circular object 10 gradually rotates due to the buffering action of 37. Therefore, the impact force of the circular object 10 on the receiving surface 32a is weakened, and the circular object 10 will not be damaged or fall off from the receiving surface 32b. When the stopper arm is lowered to a predetermined position, the solenoid valve is turned ON and the first stage is forcibly lowered.

Note that the receiving surface 32b is located slightly below the tips of the main body rows.

When a detector (not shown) detects that the circular object 10 has been placed on the tilt table, the motor group rotates forward after a predetermined period of time, and the skew truck 31 descends.

When the skewed carriage 31 reaches the lower end, the solenoid valve head is switched to force the stopper arm to lower that second stage. Then, the tilting table is tilted using the cylinder device so that the receiving surface 32a is lowered. As a result, the receiving surface 32b changes from a horizontal state to a state in which the tip is lowered, and the circular object 10
28 and rolls out into the output light ω. In this state, the receiving surface 32a and the output light ω are substantially at the same height. At this time, the roller blade of the stopper arm is located below the receiving surface 32JI, and does not substantially pose an obstacle to the movement of the circular object 10.

A detector (
(not shown), the motor group is reversed after a predetermined period of time to raise the oblique carriage 31. Also, the cylinder device A, 37 is returned to its original position.

A configuration for raising a circular object will be described. A carrying out platform similar to the carrying out platform prisoner is provided at the lower part ω, and the circular object 10 is rolled toward the oblique carriage 31. The stopper arm of the skewed carriage 31 is provided so as to rotate toward the receiving surface 32b side.

For example, a device similar to a loading platform is provided at the upper loading destination. The cylinder device wL2'7 is used as a cylinder device for buffering,
If there is no circular object, arm 5 is raised.

In each of the above embodiments, the diagonal trolley 31 is used as a device for connecting the upper and lower parts, but a device that moves vertically up and down may also be used.

Moreover, the carrying-out platform prisoner can be a traveling trolley.

〔Effect of the invention〕

According to the present invention, it is possible to transfer a circular object simply by rolling it using the characteristics of the circular object, so it can be transported at low cost. Furthermore, since the receiver is equipped with a shock absorber on the side, it is possible to prevent the circular object from being damaged or falling off during transfer.

[Brief explanation of drawings]

1, 2, 3, 4, and 5 are side views of a conveying device according to an embodiment of the present invention. Figure 1 is a diagram of the state before transport, Figure 2 is a plan view of the tilting table in Figure 1, Figure 3 is a diagram of the state during transport, Figure 4 is a diagram of the state at the end of transport, and Figure 5. is a system diagram of a cylinder device. 10... Circular object, processing... Carrying out platform, 5
......Tilting arm, 4...Cylinder device, 31...Tilting cart, C...Tilting table,
32a, 32b...Receiving surface, A...Cylinder device, A...Stopper arm, Latch...
...Buffer cylinder device, 37g, 37b...
Piston, motor, ω, destination, 71, pressure air source, n, regulator valve, 76, 77, 78. Department, 87.90・
...Figure 4

Claims (1)

[Claims] 1. A movable table that reciprocates between the upper and lower parts, and a recessed part in the center of the circular object, which has two receiving surfaces for supporting at least two points in the circumferential direction of the circular object. A tilting table is rotatably installed on the moving table around the vicinity of the recess, and when the moving table is located at the transfer destination, the receiving surface on the transfer destination side of the two receiving surfaces is horizontally moved. a first drive device installed on the moving platform for rotation; and a first drive device installed on the moving platform so as to protrude above a receiving surface located on the destination side, and a first drive device installed on the receiving surface on the destination side. A stopper arm that rotates downward, a cushioning cylinder device that causes the stopper arm to gradually rotate downward, and a cylinder device that is installed at the source of the circular object and that rotates in the circumferential direction of the circular object. a tilting arm capable of lifting a receiving point on a side remote from the moving table among receiving points supporting two points toward the moving table;
A transport device comprising: a second drive device that rotates the tilting arm; 2. The conveying device according to claim 1, wherein the cylinder device has means for forcibly lowering the stopper arm when it is lowered to a predetermined position.