JP5151240B2 - Transport equipment using walking beam transport system - Google Patents

Description

  The present invention relates to a walking beam type conveying device used for conveying a coiled steel strip or the like.

For example, with regard to transporting heavy objects such as coiled steel strips, the walking beam (movable beam) is moved up and down and moved back and forth, and the transported object placed on the fixed beam is intermittently moved at a predetermined stroke. Since the walking beam type conveying device to be conveyed can be realized at a low cost with a relatively small device, it is often used as a conveying device on the entry side / outside side of the production line (for example, Patent Documents 1 and 2). reference).
Japanese Patent Laid-Open No. 04-235815 Japanese Patent Laid-Open No. 06-072522

  However, in the case of a walking beam type transport device, when a plurality of units are connected and used, there is a problem that the degree of freedom of transport timing becomes low due to interference between movable beams of adjacent walking beam type transport devices. There is.

  For this reason, a belt conveyor, a carriage, or the like is applied to a case where the conveyance frequency is high or a degree of freedom is required for the conveyance timing, although it is relatively expensive.

  However, especially when there is a problem with space and it is not possible to install a conveyor device such as a belt conveyor or a carriage, it must be transported with a walking beam type transport device. In that case, in order to realize transport with a high degree of freedom. It is necessary to appropriately prevent interference between the movable beams of each other at a position (delivery position) where the conveyed product is delivered between adjacent walking beam type conveyance devices.

  In other words, when two walking beam transport devices are connected across the delivery position and the transported object is transported in one direction, the movable beams interfere with each other at the delivery position by moving the movable beams in synchronization. It is possible to operate two walking beam transport devices at the same time while preventing the situation, but for example, by connecting three or more walking beam transport devices through one delivery position, When transporting in a distributed manner, if the transport direction (transport destination) or transport interval (transport pitch) changes irregularly, it becomes difficult to move the movable beams in synchronization with each other. Only one walking beam transport device is activated from time to time to prevent interference Supposed to stop the other walking beam type conveying device, the conveying efficiency decreases.

The present invention has been made in view of the above circumstances, and when a plurality of walking beam transfer apparatuses are connected and used with one delivery position in between, the transfer direction and transfer interval are irregular. even if the change to make it possible to realize efficient and highly flexible transport, it is an object to provide a conveyance equipment with walking beam type conveying device.

  In order to solve the above problems, the present invention has the following features.

[1] A transfer facility using a walking beam type transfer device that applies a vertical movement and a back-and-forth movement to a movable beam, and intermittently conveys an object placed on the fixed beam with a predetermined stroke. A plurality of walking beam type transfer devices are connected to each other across two delivery positions, and each walking beam type transfer device is intermittently loaded with a half of the predetermined stroke. A transport mechanism is added, and when transporting a transported object between the transfer position and the walking beam type transport device, the transport is performed in the predetermined stroke and the transported object on the fixed beam is sequentially advanced. transport in which is using a walking beam type conveying device, characterized in that for conveying the at half the stroke of the predetermined stroke Bei.

  In the present invention, when a plurality of walking beam transfer devices are connected and used through one delivery position, even if the transfer direction and transfer interval change irregularly, the efficiency and flexibility are high. Transport can be realized. As a result, it is possible to reduce restrictions on the side that receives the conveyed product from the walking beam type conveying device and the side that dispenses the conveyed item to the walking beam type conveying device, thereby enabling efficient operation of the production line.

  An embodiment of the present invention will be described with reference to the drawings. Here, a case where a steel strip (rolled coil) that has been rolled and wound in a coil shape is conveyed will be described as an example.

  FIG. 1 shows transport equipment using a walking beam transport apparatus according to an embodiment of the present invention. Walking beam type conveying devices 11 to 14 according to an embodiment of the present invention are installed via a delivery position (delivery platform) 10, and the rolling coil 1 conveyed by the first walking beam type conveying device 11 is provided. Then, after being delivered to the delivery platform 10, it is distributed to one of the second walking beam type conveying device 12, the third walking beam type conveying device 13, and the fourth walking beam type conveying device 14, and conveyed in that direction. It is like that.

  And the structure and operation | movement of the walking beam type conveying apparatuses 11-14 which concern on one Embodiment of this invention are as what is shown to FIG. 2, FIG. Here, the second walking beam transport device 12 is shown as a representative example, but the other walking beam transport devices 11, 13, and 14 are basically the same.

  As shown in FIG. 2, the second walking beam type conveying device 12 applies a forward / backward movement to the movable beam 23 in the standby position by a forward / reverse hydraulic cylinder 25 and an up / down hydraulic cylinder 26. Thus, the rolling coil placed on the delivery stand 10 is received and placed on the fixed beam 21, and the rolling coil placed on the fixed beam 21 is intermittently moved in the conveying direction (right direction in FIG. 2). The second walking beam type conveying device 12 is capable of conveying a half stroke (half stroke) in addition to a predetermined stroke (full stroke). It can be done.

  That is, on the fixed beam 21, a holding wedge 22 that holds the rolling coil is installed at a position (mounting position, position) where the rolling coil is placed. Here, a delivery position 10 (in FIG. 2, The first position (1POS in FIG. 2), the second position (2POS in FIG. 2), the third position (FIG. 2) at intervals of full strokes starting from 0POS) in the transport direction. The holding wedge 22 is installed in the order of middle, 3POS) and fourth position (4POS in FIG. 2), and the 1.5th position between the first position and the second position (1.5POS in FIG. 2). ), 2.5 position between the second position and the third position (2.5 POS in FIG. 2), 3.5 position between the third position and the fourth position (3 in FIG. 2) Holding wedge 22 is installed in 5pos). On the other hand, the movable beam 23 is also provided with a holding wedge 24 that holds the rolling coil at a position (mounting position, position) where the rolling coil is placed. In the direction, with a half stroke interval, 0.5th position (0.5 POS), 1st position (1 POS), 1.5th position (1.5 POS), ... Holding wedges 24 are installed in the order of the third position (3POS), the 3.5th position (3.5POS), and the fourth position (4POS). Of course, the number of these mounting positions is appropriately determined according to the transport distance.

  Then, when carrying with full stroke, as shown in FIG. 3A, the movable beam 23 moves backward (F1) 1/2 stroke from the standby position (state of FIG. 2) → (F2). The cycle moves in the order of ascending → (F3) full stroke advance → (F4) descending → (F5) 1/2 stroke backward. Thereby, the rolling coil mounted on the delivery stand 10 and the rolling coil mounted on the fixed beam 21 move in the transport direction by the full stroke.

  On the other hand, when carrying by half stroke, as shown in FIG. 3B, the movable beam 23 moves from (H1) up to (H2) 1/2 stroke from the standby position (state in FIG. 2). Move in the order of forward → (H3) descent → (H4) 1/2 stroke backward. As a result, the rolling coil placed on the fixed beam 21 moves in the transport direction by the half stroke.

  Here, when carrying out such a half-stroke conveyance, the movable beam 23 does not retreat from the standby position to the delivery position 10 side, so that the movable beam 23 does not enter the delivery position 10, and the delivery position 10 There is no problem of interfering with the movable beams of the other walking beam transport apparatuses 11, 13, and 14. Therefore, the rolling coil on the fixed beam 21 can be moved in the conveyance direction without being restricted by the movement of the other walking beam type conveyance devices 11, 13, and 14.

  In the above description, the forward / backward control of the movable beam 23 is performed by adjusting the extension amount of the rod of the forward / backward hydraulic cylinder 25. That is, at the standby position, the rod stretching amount is set to a half stretching amount (half stroke) of the total stretching amount (full stroke), so that the cycle shown in FIGS. Sequentially adjust the amount of rod stretching.

  Alternatively, a hydraulic cylinder for moving the forward / backward hydraulic cylinder 25 forward / backward may be attached to the forward / backward hydraulic cylinder 25, and the extension amount of these hydraulic cylinders may be adjusted.

  Incidentally, as described above, the structure and operation of the other walking beam transport apparatuses 11, 13, and 14 are basically the same as those of the walking beam transport apparatus 12 of FIG. Is different from the embodiment in that the walking beam type conveying devices 12 to 14 receive the rolling coil from the delivery table 10.

  And when conveying the rolling coil 1 using the conveyance equipment provided with the walking beam type conveying apparatuses 11-14 which concern on this embodiment as shown in FIG. 1, the following (S1)-(S5) ).

  (S1) First, the rolling coil is advanced to the first position (1POS) on the fixed beam while operating the first walking beam type conveying device 11 with a half stroke.

  (S2) Next, no other rolling coil is mounted on the delivery table 10 (0POS), and that the movable beam of another walking beam type conveying device has not advanced to the delivery position 10 (ie, other The first walking beam type transport device 11 is operated in full stroke after confirming that it does not interfere with the movable beam of the walking beam type transport device. As a result, the rolling coil placed at the first position (1 POS) on the fixed beam of the first walking beam type transport device 11 is placed on the delivery table 10.

  (S3) Next, with respect to the rolling coil placed on the delivery table 10, the walking beam type transporting device (the first in the transporting direction) according to the predetermined transporting direction (conveying destination) of the rolling coil. After confirming that any one of the 2 walking beam type transfer device 12, the third walking beam type transfer device 13, and the fourth walking beam type transfer device 14) does not interfere with the movable beam of another walking beam type transfer device. Operate at full stroke. As a result, the rolling coil placed on the delivery table 10 is placed at the first position (1POS) on the fixed beam of the corresponding walking beam type conveying apparatus.

  (S4) Then, the walking beam type conveying device on which the rolling coil is placed in (S3) is operated for a predetermined cycle with a half stroke, and the rolling coil is sequentially moved in the conveying direction.

  (S5) Hereinafter, (S1) to (S4) are repeated as appropriate.

  In the above description, whether or not the rolling coil is placed on the delivery table 10 is detected by an unillustrated load sensor (for example, a photoelectric element sensor). Further, whether or not an arbitrary movable beam has advanced to the delivery position 10 is detected by an interference sensor (for example, a photoelectric element sensor) (not shown). And the conveyance destination of the rolling coil mounted in the delivery stand 10 is given by the tracking information from the process computer which is not shown in figure.

  As described above, in this embodiment, when the rolling coil is transferred between the transfer table 10 and the walking beam transfer apparatuses 11 to 14, the full coil is transferred and rolled on the fixed beam. When the coils are sequentially advanced, the half-stroke conveyance is performed, so that the rolling coils can be conveyed in a predetermined conveyance direction while simultaneously operating a plurality of walking beam type conveyance devices. Therefore, even when the conveyance direction and interval of the rolling coil change irregularly, it is possible to realize efficient and highly flexible conveyance, whereby the side receiving the rolling coil from the walking beam type conveying device and the walking It is possible to eliminate or alleviate restrictions such as speed control on the side where the rolling coil is delivered to the beam type conveying device, and efficient operation of the production line becomes possible.

  The transport facility using the walking beam transport device according to this embodiment is not limited to the transport facility shown in FIG. 1 and can be used in appropriate combination as necessary.

  For example, in FIG. 1, there is one walking beam type conveying device that passes a rolling coil to a delivery table and three walking beam type conveying devices that receive the rolling coil from the delivery table. Two conveying devices may be used, and the latter walking beam type conveying device may be two.

  In FIG. 1, four walking beam transfer apparatuses are installed. However, an appropriate number of walking beam transfer apparatuses may be installed as necessary.

  In addition, an arbitrary walking beam type transfer device (for example, the second walking beam type transfer device 12) operates in a direction in which the rolling coil is transferred to the transfer table and in a direction in which the rolling coil is transferred from the transfer table. It may be possible to switch and use at any time.

  Depending on the case, one or more walking beam type conveying apparatuses according to this embodiment may be installed, and the other walking beam type conveying apparatus (only operation at full stroke) may be installed.

  Further, instead of an arbitrary walking beam type conveying apparatus (for example, the first walking beam type conveying apparatus 11), the conveying may be performed by other conveying means (for example, a coil carriage).

  Furthermore, in this embodiment, the case of the walking beam type conveying apparatus that conveys the rolling coil has been described as an example, but it can be applied to the walking beam type conveying apparatus that conveys other conveyance objects. Nor.

It is a figure which shows the conveyance installation in one Embodiment of this invention. It is a figure which shows the structure of the walking beam type conveying apparatus which concerns on one Embodiment of this invention. It is a figure which shows the motion of the movable beam in the walking beam type conveying apparatus which concerns on one Embodiment of this invention.

Explanation of symbols

1 Rolling coil 10 Delivery stand (delivery position)
DESCRIPTION OF SYMBOLS 11 1st walking beam type conveying apparatus 12 2nd walking beam type conveying apparatus 13 3rd walking beam type conveying apparatus 14 4th walking beam type conveying apparatus 21 Fixed beam 22 Holding wedge (mounting position)
23 Movable beam 24 Holding wedge (mounting position)
25 Hydraulic cylinder for forward and backward movement 26 Hydraulic cylinder for upward and downward movement

Claims (1)

A transfer facility using a walking beam type transfer device that gives a movable beam up and down movement and back and forth movement to intermittently transfer a workpiece placed on a fixed beam at a predetermined stroke. A plurality of walking beam type conveying devices are connected to each other, and each walking beam type conveying device has a mechanism for intermittently conveying a conveyed object at a half of the predetermined stroke. Is added, and when transferring the transferred object between the transfer position and the walking beam type transfer device, the transfer is performed with the predetermined stroke, and the transferred object on the fixed beam is sequentially advanced. Is a transport facility using a walking beam type transport device , wherein transport is performed with a half of the predetermined stroke .

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