JP2010195508A - Conveying device and conveying system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a conveying device and a conveying system using an existing conveying device facility, stably switching normal and reverse directions, and improving a frequency of switching between the normal and the reverse directions by saving labor in work for switching the normal and reverse directions. <P>SOLUTION: The conveying device moved along a conveying direction and conveying a material to be conveyed by being hooked by a claw includes a normally conveying claw and a reversely conveying claw for conveying the material to be conveyed in a rising state, a slide rod for rotating the normally conveying claw or the reversely conveying claw in a falling state, and a holding mechanism for holding the slide rod in a position for putting the normally conveying claw into a falling state and a position for putting the reversely conveying claw into the falling state. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a transport apparatus and a transport system that horizontally move a transport material installed in a transport line in forward and reverse directions.

  In order to carry forward and reverse steel materials, for example, a steel material conveying device 100 having a guide rail as shown in FIG. 1 has been devised. A transport apparatus 100 shown in FIG. 1 mainly includes a dog car 102 provided with a transport claw 101 (forward feed claw 101a, reverse feed claw 101b), a travel rail 103 for the dog car 102 to travel, and a claw 101. The guide rails 104 (forward feed guide rail 104a and reverse feed guide rail 104b) that respectively guide the forward feed claw 101a and the reverse feed claw 101b are configured. Further, a dog car pulling rope 105 connected to a driving mechanism (not shown) is attached to the dog car 102, and the dog car 102 is movable along the traveling rail 103 by the driving mechanism.

  Here, the relationship between the forward-feeding claw 101a and the backward-feeding claw 101b is such that when the forward-feeding claw 101a stands up in the vertical direction and transports the conveying material 110, the backward-feeding claw 101b is in an overturned state. On the other hand, when the reverse feeding claw 101b stands up in the vertical direction and conveys the conveying material 110, the normal feeding claw 101a is in a fallen state. In addition, when the conveying material 110 is moved, the rotation moment received by the claw 101 is received by the stopper 111.

That is, the forward guide rail 104a and the reverse guide rail 104b are provided separately in the width direction of the dog car 102, and guide rollers 106 are provided below the forward feed claw 101a and the reverse feed claw 101b, respectively. It has been. Then, as shown by the solid line in the figure, when the forward feeding claw 101a is erected, the guide rail 104a at the lower part of the forward feeding claw 101a is lowered, so that the tip of the forward feeding claw 101a is moved. It protrudes above the transporting skid 107, and the transporting material 110 is transported at the tip of the forward feeding claw 101a. On the other hand, as shown by the dotted line in the figure, when raising the reverse feeding claw 101b, the guide rail 104b below the reverse feeding claw 101b is lowered so that the tip of the reverse feeding claw 101b is moved. It protrudes above the transport skid 107 and is in a state of transporting the transport material 110 at the tip of the reverse feeding claw 101b.

Further, Patent Document 1 discloses a steel material conveying device having forward and reverse feeding claws. In the case where the steel material is transported using the transport device described in Patent Document 1, the steel material can be transported in a freely forward and reverse direction. Furthermore, since it is possible to flexibly cope with changes in the transport direction and the existing transport equipment can be diverted, it is possible to easily improve the conventional transport apparatus with a small budget and modification.

  Further, Patent Document 2 describes a conveyance device with a claw. According to this, a claw is automatically toppled on a conveyance line, so that a large capital investment is not required and the next time when a dog car is restored. Since the steel material can be transported without interference between the steel material and the claw, cycle time loss and energy loss can be avoided.

Japanese Patent Application Laid-Open No. 11-114614 JP 2004-238103 A

  However, in the prior art shown in FIG. 1 above, it is necessary to arrange a guide rail for guiding the claw below the conveying device over the entire length of the dog car traveling area, which complicates the structure of the entire conveying device. There is concern about an increase in installation costs. In addition, contact between the conveying material and the claw occurs due to wear of the guide roller and guide rail installed under the claw, and the occurrence of lifting of the claw due to vibration of the conveyance device, and the guide rail is deformed by the reaction force of the contact. There was a problem such as.

  In addition, when the transport device described in Patent Document 1 or Patent Document 2 is used, even when the transporting claw is in a fallen state, the claw is lifted up by vibration during transportation and the like, thereby preventing the transport of the transport material. There was a problem that this situation occurred frequently. In addition, fixing the nail in the fall state during conveyance is generally performed using a manual fixing pin, and there is a problem that the burden on the operator is large.

  Therefore, the present invention has been made in view of the above-mentioned various problems, and can make use of existing transport apparatus facilities. Further, the forward / reverse direction can be stably switched, and the forward / reverse direction can be changed. It is an object of the present invention to provide a transport apparatus and a transport system that improve the forward / reverse direction switching frequency by saving the switching work.

  Therefore, according to the present invention, there is provided a transport device that is moved along the transport direction and that transports the transport material by hooking the transport material with a nail, and includes a forward feeding nail and a reverse feed nail for transporting the transport material in a standing state; A slide rod for rotating the forward feed claw or the reverse feed claw in a fall state, a position for turning the forward feed claw to a fall state, and a position for turning the reverse feed claw in a fall state And a holding mechanism for holding the transfer device. The holding mechanism is, for example, a compression spring. Further, when one of the forward feeding claw and the reverse feeding claw is in an upright state, the other is in a fallen state.

  Further, according to the present invention from another point of view, the forward-feeding claw and the reverse-feeding claw that are moved along the conveyance direction, hook the conveyance material with a claw and convey it, and convey the conveyance material in a standing state; A slide rod for rotating the forward feed claw or the reverse feed claw in a fall state, a position for turning the forward feed claw to a fall state, and a position for turning the reverse feed claw in a fall state A conveying device comprising a holding mechanism to be held at the lower side of the conveying device, and the slide rod at a position where the forward feeding claw is turned over and the reverse feeding claw is turned over. And a drive mechanism for moving the drive system to a position to be moved.

  According to the present invention, it is possible to divert existing transport equipment, and further, forward / reverse direction switching is performed stably, and forward / reverse direction switching frequency is saved by saving labor for forward / reverse direction switching. There are provided a transport apparatus and a transport system with improved performance. Furthermore, the conveyance efficiency can be increased and the productivity can be improved by improving the forward / reverse direction switching frequency.

It is explanatory drawing which shows an example of the conventional conveying apparatus. It is explanatory drawing of the conveying apparatus of this invention. It is sectional drawing which looked at the conveyance system of this invention from the conveyance direction front. It is the top view which looked at the conveyance system of the present invention from the upper surface. It is a schematic diagram explaining the state change of the nail | claw for forward feeding, and the nail | claw for reverse feeding. It is explanatory drawing of the conveyance state at the time of conveying a conveying material in a normal feeding direction. It is explanatory drawing explaining the conveyance state when a conveyance distance is long.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the present specification and drawings, components having substantially the same functional configuration are denoted by the same reference numerals, and redundant description is omitted.

  FIG. 2 is a cross-sectional view of the transport device 1 according to the present invention as viewed from the side in the transport direction. Here, FIG. 2 shows a case (a) where the conveying material 11 is conveyed in the forward direction and a case (b) where it is conveyed in the reverse direction. As shown in FIG. 2, the transport apparatus 1 transports a transport material 11, which is a rod-shaped steel material such as a prism or cylinder, along the upper surface of the transport skid 10. In the transport apparatus 1, the transport material 11 is transported by a dog car 20. Further, at the bottom of the dog car 20, wheels 12 for rail traveling are installed. Here, the dog car 20 is configured to be moved laterally by an external force from the transport wire 13. In the following description, the right direction of the transport skid 10 (the right direction in FIG. 2) will be referred to as the forward feed direction, and the left direction of the transport skid 10 (the left direction in FIG. 2) will be described as the reverse feed direction.

  A forward feeding claw 21 and a backward feeding claw 22 are attached to both ends of the dog car 20 in the forward feeding direction and the backward feeding direction. The forward feeding claw 21 and the reverse feeding claw 22 are attached to the dog car 20 by a claw pin 23. Here, the forward claw 21 and the reverse claw 22 have fallen about 45 degrees in the inner direction of the dog car 20 from the state of being vertically raised in the conveyance direction (21a and 22a in FIG. 2) (FIG. 2). It is supported by the claw rotating shaft 23 so that it can rotate to the inner 21b and 22b). Note that the angle at which the tip can be overturned here depends on the shape of the forward feeding claw 21 and the reverse feeding claw 22 and the shape of the dog car 20, and is not necessarily limited to about 45 degrees. Any angle may be used so long as 21 and the reverse feed claw 22 fall down sufficiently to the extent that they do not protrude above the transport skid 10.

  Further, on one end portion (upper end portion in the standing state) of the forward feeding claw 21 and the reverse feeding claw 22, conveying surfaces 21 ′ and 22 ′ facing the side surface of the conveying material 11 in the standing state are formed. . That is, for example, when transporting the transporting material 11 in the forward feeding direction, as shown in FIG. 2A, the side surface of the transporting material 11 facing the transporting surface 21 'of the forward feeding claw 21 is in contact. Become. Moreover, when conveying the conveying material 11 in the reverse feeding direction, as shown in FIG. 2B, the side surface of the conveying material 11 facing the conveying surface 22 'of the reverse feeding claw 22 is in contact. . On the other hand, the forward-feeding pawl 21 and the reverse-feeding pawl 22 are in a state in which the transport surfaces 21 ′ and 22 ′ are in contact with the inner side surface of the dog car 20, as shown by 21 b and 22 b in FIG. The dog car 20 is housed inside. Here, on the outer side surface of the dog car 20 with which the conveyance surface 21 ′ or 22 ′ is in contact, when the claw is stored, the pressing force (pressing force) of the compression spring 34 described below is applied to the claw (the forward feeding claw 21 and the reverse feeding). The liner plate 24 is provided so that the claw 22) can be received, and the claw (the forward feeding claw 21 and the reverse feeding claw 22) can always be kept horizontal when stored. It has a structure that can be done.

  A slide rod 30 extending in the transport direction is attached to the lower portion of the dog car 20, and a slide plate 31 is fixed to the center of the slide rod 30 downward by a fastener 32. The lower protrusion 31 ′ of the slide plate 31 has a planar shape perpendicular to the conveying direction. The lower end of a compression spring 34 as a holding mechanism is provided at the upper end of the slide plate 31 via a rotatable connection pin 33. It is connected. The upper end of the compression spring 34 is attached to the upper center of the dog car 20 by a rotatable connection pin 33. Here, a compression force is always applied to the compression spring 34.

  The slide rod 30 is supported by a rod bearing 35 so as to be horizontally movable in the transport direction, and a force is applied to a slide plate 31 fixed to the slide rod 30 from an arm 42 described later in the transport direction. Move in the forward and reverse directions. A rotatable roller 36 is installed at both ends of the slide rod 30. When the slide rod 30 moves horizontally in the forward and reverse directions, the roller 36 comes into contact with the side of the forward feeding claw 21 or the backward feeding claw 22 and then presses, thereby pressing the forward feeding claw 21. Alternatively, the reverse feeding claw 22 rotates around the claw rotating shaft 23, and the normal feeding claw 21 or the reverse feeding claw 22 that has been in a standing state (21a and 22a in FIG. 2) falls over (in FIG. 2). 21b and 22b). Here, when the forward feeding claw 21 is in the standing state, the backward feeding claw 22 is in a fall state, and when the forward feeding claw 21 is in the fall state, the backward feeding claw 22 is in a standing state. The opposite state is maintained.

  That is, for example, as indicated by the solid line in FIG. 2A, the conveying material 11 is moved in the reverse direction as indicated by the solid line in FIG. When the transport device 1 is switched to the carrying state, a position in the reverse direction of the slide rod 30 is applied to the slide plate 31 so that the slide rod 30 causes the reverse claw 22 to fall (position shown in FIG. 2A). Then, it moves to a position (position shown in FIG. 2 (b)) in which the forward feeding claw 21 is in the fall state. After the slide rod 30 is moved, the position after the slide rod 30 is moved by the compression spring 34 is maintained, and the forward feeding claw 21 shown in the solid line in FIG. Here, when the slide rod 30 moves, the impact reaction force from the conveying material 11 is directly applied to the slide rod 30 and the stopper 38 is provided at the lower center of the dog car 20 in order to prevent the slide rod 30 from being deformed. Is installed.

  Also, contrary to the above case, as indicated by the solid line in FIG. 2B, from the state in which the conveying material 11 is conveyed in the reverse feeding direction, as indicated by the solid line in FIG. When the transport device 1 is switched to the state where the transport material 11 is being transported, a force in the forward feeding direction is applied to the slide plate 31 to place the slide rod 30 in a state in which the reverse feed pawl 22 is turned over (FIG. 2). What is necessary is just to move to (position shown to (a)). Also at this time, the position of the slide rod 30 after the movement is held by the compression spring 34, and the fall state of the forward feeding claw 21 shown by the solid line in FIG.

  A weight 37 is fixed to the lower outer surface portion of the forward feeding claw 21 and the reverse feeding claw 22. The forward claw 21 and the reverse claw 22 are supported by the claw rotating shaft 23 so as to be in an upright state (21a and 22a in FIG. 2) when no other external force is applied by the load from the weight 37. Yes. Therefore, unless the slide rod 30 is held in an overturned state, the forward-feeding pawl 21 and the reverse-feeding pawl 22 try to maintain an upright state. Here, the length of the slide rod 30 is such that one of the forward feeding claw 21 or the reverse feeding claw 22 is always pressed by the slide rod 30 and the other is not pressed.

  By receiving a pressing force from the compression spring 34, the position of the slide rod 30 is fixed to one of a position where the forward feeding claw 21 is turned over and a position where the reverse feeding claw 22 is turned over, Along with this, the fall state of the forward feeding claw 21 or the reverse feeding claw 22 is maintained. In the transport device 1, in order to prevent the impact reaction force from the transport material 11 from being directly applied to the slide rod 30 and preventing the slide rod 30 from being deformed during transport, the stopper 38 and the pawl (the forward feed pawl 21 and The structure is such that the reverse feed claw 22) hits in advance.

  FIG. 3 is a cross-sectional view of the transport system 40 having the transport apparatus 1 of the present invention as viewed from the front in the transport direction. FIG. 4 is a plan view of the transport system 40 as viewed from above. A switching carriage 41, an arm 42, a cylinder 43, and a double rod cylinder 44 are provided on the side of the slide plate 31 of the transport device 1 as a drive device 39. The switching carriage 41 is provided with an arm 42 that expands and contracts vertically and horizontally with respect to the transport direction. The arm 42 is extended and contracted on the opposite side of the arm 42 with respect to the switching carriage 41. The arm 42 is expanded and contracted by a cylinder 43 connected to the arm 42. The cylinder 43 is supported by a double rod cylinder 44 attached to the switching carriage 41 so as to be movable in parallel with the transport direction. That is, the cylinder 43 and the arm 42 connected to the cylinder 43 are movable in parallel to the transport direction within the range supported by the rod type cylinders 44, and the arm 42 is perpendicular to the transport direction and horizontal. Stretch within the range of length. It should be noted that the predetermined length of the arm 42 only needs to be long enough to push the slide plate 31 by horizontal movement when extended.

In a state where the arm 42 extends to a predetermined length by the operation of the cylinder 43, the arm 42 moves in parallel with the transport direction by the operation of the double rod type cylinder 44, whereby the arm 42 moves the slide plate 31 of the transport device 1 in parallel with the transport direction. And it becomes possible to push in a horizontal direction. At this time, since it is possible to move the arm 42 in a contracted state in parallel with the transport direction, the position of the arm 42 can be positioned on either the forward feed direction side or the reverse feed direction side of the slide plate 31. It is possible to push the slide plate 31 in both the forward feed direction and the reverse feed direction.

  As described above, the slide plate 31 moves horizontally by applying a force in the forward feed direction and the reverse feed direction. At this time, when a force in the forward feed direction is applied to the slide plate 31, the slide rod 30 moves horizontally in the forward feed direction, and the slide rod 30 presses the reverse feed claw 22, so that the reverse feed claw 22 falls over. (State 22b in FIG. 2). On the other hand, the forward-feeding claw 21 that is not pressed from the slide rod 30 maintains the standing state (the state of 21 a in FIG. 2) by the load from the weight 37. Here, the overturning state of the reverse feeding claw 22 is maintained by the compression spring 34.

  On the other hand, when a force in the reverse feed direction is applied to the slide plate 31, the slide rod 30 moves horizontally in the reverse feed direction, the slide rod 30 presses the forward feed pawl 21, and the forward feed pawl 21 falls over (see FIG. 2 is in a standing state (the state of 22a in FIG. 2). Here, the overturning state of the forward feeding claw 21 is maintained by the compression spring 34.

  In other words, by operating the switching carriage 41 having the arm 42 in the transport system 40, the standing state and the overturning state of the forward feeding claw 21 and the reverse feeding claw 22 can be interchanged. Accordingly, either the forward feeding claw 21 or the reverse feeding claw 22 can be set up in an upright state in accordance with the transport direction. The switching carriage 41 may be provided in the entire conveyance direction in the conveyance system 40. However, the switching carriage 41 is a point for switching the conveyance direction of the conveyance device 1 (the standing state and the overturning state of the forward feeding claw 21 and the reverse feeding claw 22). It is desirable from the standpoint of equipment costs to be provided only in the vicinity of the point where the switch is made.

  An example of operation of the transport system 1 having the above-described configuration and the transport system 40 having the transport device 1 will be described below. FIG. 5 is a schematic diagram for explaining state changes of the forward feeding claw 21 and the reverse feeding claw 22 in the transport system 40. FIG. 6 is an explanatory diagram of a conveyance state when the conveyance material 11 is conveyed in the normal feeding direction.

  For example, when transporting the transport material 11 in the forward feed direction and then transporting the other transport material 11 in the reverse transport direction, the forward feed claws 21 are raised as shown in FIG. . And, for example, when the transport material 11 is a long steel material, depending on the length of the steel material, as shown in FIG. 6, from a transport wire (not shown) using a plurality of transport devices 1 (transport system 40). It is conveyed in the normal feeding direction (right direction in FIG. 6) using the external force. Since the normal feeding claw 21 is in the standing state, the conveyance device 1 is changed from the state shown in FIG. 6A to the state shown in FIG. 6B when the conveying material 11 is caught by the normal feeding claw 21. Is moved in the forward feed direction along with the movement of. After the transport material 11 is transported to a predetermined position, the transport system 40 moves from the state shown in FIG. 5A (the normal feeding claw 21 standing state) to the state shown in FIG. 5B (the reverse feeding claw 22 standing up). If necessary, it is moved in the reverse direction by a conveyance wire (not shown in FIG. 6). At this time, if there is a transport material 11 transported in the reverse feed direction, the transport material 11 is hooked on the reverse feed claws 22 and transported.

  According to the operation example of the transport system 40 described above, it is possible to save labor for switching the forward / reverse direction of the transport apparatus 1 and improve the forward / reverse direction switching frequency, thereby increasing transport efficiency and improving productivity. Improvement is achieved. In addition, since the existing conveyance device and equipment can be diverted, an increase in conveyance efficiency and an improvement in productivity can be realized at a low cost. Furthermore, since the conveyance claw is always fixed, stable conveyance of the conveyance material 11 is performed without problems such as lifting of the conveyance claw due to vibration.

  As mentioned above, although an example of embodiment of this invention was demonstrated, this invention is not limited to the form of illustration. It is obvious for those skilled in the art that various modifications or modifications can be conceived within the scope of the idea described in the claims, and these naturally belong to the technical scope of the present invention. It is understood.

  For example, as described in the above embodiment, the switching carriage 41 is not necessarily provided over the entire moving distance of the transfer device 1 in the transfer system 40 from the viewpoint of equipment cost and the like. FIG. 6 illustrates a case where the switching carriage 41 is provided over the entire length in the transport direction. For example, the start point and the end point when the transport material 11 is transported, such as point A and point B illustrated in FIG. 6. Is set in advance in the vicinity of the start point and the end point thereof, and the nail in the standing state in the transport device 1 is changed from the normal feed claw 21 to the reverse feed claw 22 (or the reverse feed claw). It is sufficient to change from 22 to the normal feeding claw 21).

  Further, when the transporting distance of the transporting material 11 is long, the single transporting device 1 requires a long time for the reciprocation, and the transport cycle time becomes long and the productivity is lowered. In such a case, the transport device 1 is installed at a plurality of locations in the transport direction, and transport of a long distance is performed by connecting the transport tracks of the plurality of transport devices 1. FIG. 7 is an explanatory diagram illustrating a transport state when the transport distance is long. As shown in FIG. 7, a plurality of conveying devices 1 are installed in the conveying direction (for example, two places in the conveying direction in FIG. 7) and conveyed by the dog car 20 from the point C that is the conveying start point of the conveying material 11, It is conceivable that the conveyance material 11 is transferred from the conveyance by the dog car 20 to another dog car 20 ′ at the point D, and further conveyed from the point D to the point E which is the conveyance end point. As described above, even when there is a limit in the transport distance in one transport device 1, it is possible to transport a long distance by connecting the transport tracks of the plurality of transport devices 1. Moreover, since the several conveyance material 11 can be conveyed simultaneously, conveyance efficiency improves. In the example shown in FIG. 7, it is assumed that two transport devices 1 are installed in the transport direction from point C to point E. However, the present invention is not limited to this, and the number of transport devices 1 corresponding to the transport distance is set. It is preferable to install in the conveyance direction.

  The present invention can be applied to a transport apparatus and a transport system that horizontally move a transport material installed in a transport line in the forward and reverse directions.

DESCRIPTION OF SYMBOLS 1 ... Conveyance apparatus 10 ... Conveyance skid 11 ... Conveyance material 12 ... Wheel 13 ... Conveyance wire 20, 20 '... Dog car 21 ... Forward claw 22 ... Reverse feed claw 30 ... Slide rod 31 ... Slide plate 32 ... Fastener 33 ... Connecting pin 34 ... Compression spring 35 ... Rod bearing 36 ... Roll 37 ... Weight 38 ... Stopper 40 ... Conveying system 41 ... Switching carriage 42 ... Arm 43 ... Cylinder 44 ... Double rod type cylinder 100 ... Conveying device 101 ... Nail 102 ... Dog car 103 ... rail for traveling 104 ... guide rail 105 ... rope for pulling dog car 106 ... guide roller 107 ... conveying skid 110 ... conveying material 111 ... stopper

Claims (4)

A transport device that is moved along the transport direction and transports the transport material by hooking it with a nail,
A forward claw and a reverse claw for conveying a conveying material in a standing state;
A slide rod that rotates the forward-feeding claw or the reverse-feeding claw to a fall state;
A conveying device comprising: a holding mechanism that holds the slide rod at a position where the forward feeding claw is in a fall state and a position where the reverse feeding claw is in a fall state. The transport apparatus according to claim 1, wherein the holding mechanism is a compression spring. The conveying device according to claim 1 or 2, wherein when one of the forward feeding claw and the reverse feeding claw is in an upright state, the other is in a fallen state. A forward claw and a reverse claw that are moved along the conveyance direction, hook the conveyance material with a nail and convey the conveyance material in a standing state, and the forward nail or the reverse nail. A slide rod that rotates in the overturned state, and a conveyance device that includes a holding mechanism that holds the slide rod in a position in which the forward feeding claw is in the overturned state and a position in which the reverse feeding claw is in the overturned state;
A drive mechanism disposed on a lower side of the transport device and configured to move the slide rod to a position where the forward feeding claw is turned over and a position where the reverse feeding claw is turned over. , Transport system.

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