JPS6021906B2 - Conveyance device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a conveyance device that is effective for conveying long objects and has a propulsion drive cart that self-propels along a conveyance path. A preferred embodiment will now be described.

In FIG. 1, 1 is a transport route, 2 is a working section within the transport route, 3 is a drive bogie detour route 4, 5 is a drive bogie route switching means, and 6 is a painting and drying oven provided in the work section 2. be.

Reference numeral 7 designates a driving vehicle for propulsion, 8 a front floating vehicle, 9 a rear floating vehicle, ID both front and rear floating vehicles, and 8 and 9 a conveyed object suspended at both front and rear ends.

As shown in FIGS. 2 and 3, the conveyance path 1 and the detour path 3 include an upper rail 12 and a lower rail 13 that are connected by a connecting plate 11, and the driving cart 7 is mounted on an iron rail on the upper rail 12. A friction drive wheel 14 that fits together, a motor 15 with a speed reducer that drives it, an electromagnetic brake 16 that brakes the friction drive wheel 14, a pair of front and rear rollers 17 that are iron-coupled to the lower rail 13 from below, and that support the roller 17. A spring 20 that urges the roller shaft support member 18 upward around the longitudinal pivot shaft 19 to press the roller 17 into contact with the lower rail 13, and a power supply and control signal exchanger attached to the coupling plate 11 between the upper and lower rails. It is equipped with a collector 22 for collecting current and transmitting and receiving control signals that is in sliding contact with a rail 21, a control box 23, and a stop proximity switch 25 attached to an arm 24 arranged at the front.

The front movable trolley 8 and the rear movable trolley 9 are shown in Figures 2 and 4.
As shown in the figure, a pair of front and rear upper rollers 26 iron-coupled on the upper rail 12, a pair of front and rear lower diagonal rollers 27 that contact the lower rail 13 from diagonally below, and this roller 2
A lower horizontal roller 28 that runs along the lower rail 13 from right side on the side opposite to the side where the bales are carried, and a hook 30 for hanging the transported object suspended via the vertical rotating shaft 29.
It is equipped with Further, the front floating carriage 3 has a pair of front and rear rollers 31 supported by a vertical shaft at the upper end, and the rear floating carriage 9 has a pair of left and right detection rollers attached to the connecting plate 11 between the upper and lower rails. A magnetic plate 33 for detection is provided to pass between the proximity switches 32. As shown in FIG. 2, connecting means 34, 35 are provided between each of the carriages 7-9. These connecting means include an engaged portion 37 consisting of a roller pivotally supported at the tip of an arm 36 protruding forward from the front end of the rear truck, and a rear end of the front truck that can freely swing up and down around a machine shaft 38. and a movable engagement piece 40 that is urged downward by a spring 39, and this movable engagement piece 40 has an iron hole that fits into the engaged portion 37, and the tip thereof is inclined diagonally upward. However, when both the front and rear trucks approach, the engaged portion 37 pushes up the movable engagement piece 40 and enters the engagement position,
The movable engagement piece 40 and the engaged portion 37 are configured to automatically engage with each other. Also, 4 movable engagement pieces, 2 horizontal shafts 38
The operated lever 41 for decoupling is interlocked with the horizontal shaft 3.
A lotus is placed downwards from 8. During conveyance work, the front floating carriage 8 is connected to the drive carriage 7 by the connecting means 34, but the rear floating carriage 9 is separated from the front floating carriage 8, and the front end of the transported object 10 is is engaged with the hook 30' of the front floating carriage 8, and its rear end is engaged with the hook 301 of the rear floating carriage 9, so that the transported object 10 is suspended by both the front and rear floating carriages 8 and 9. Then, the motor 15 of the drive truck 7 is operated by the electric power and control signal supplied from the power supply and control signal exchange rail 21 via the collector 22, and the friction drive wheel 14 is rotated to transport the drive truck 7. The object 10 to be transported is transported by moving it forward along the path 1. When there is a rear movable cart 9 stopped in front, as shown in FIG. 23, the driving cart 7 moves closer,
The Kinryo switch 25 located in front of it overlaps the upper side of the advance stop truck 9 with a gap, and the activation of the proximity switch 25 at this time cuts off the power to the motor 15 of the drive truck 7, and also cuts off the electromagnetic brake 1. 46 can be activated to automatically stop the driving truck 7 before a collision occurs. That is, the proximity switch 25 is provided at a forward position and height that allows it to carry out the above action, and at least a portion of the rear floating carriage 9 that corresponds to the proximity switch 25 is made of a magnetic material.
Or a magnetic plate is attached. According to such a configuration, even if the proximity switch 25 overlaps in a position that is shifted to the left or right from the center line of the front-stopped rear movable trolley 9, the proximity switch 25 operates accurately, so that the proximity switch 25 can operate accurately as shown by the imaginary line in FIG. Even on a curved path, the automatic stopping action when approaching is performed reliably, and the structure is simple. By using the above effect, it is possible to automatically store 0 items.

Alternatively, the proximity switch 25 may be provided with two switch parts spaced apart in the front and back direction, and the front switch may be operated to cut off the power to the motor 15, and the rear switch may be operated to activate the electromagnetic brake 16. can. Ta
When not used for transport work, the rear movable trolley 9 is connected to the front movable trolley 8 by the connecting means 35 as shown in Fig. 2, thereby shortening the total length of the trolley train and efficiently storing empty cargo. I can do it.

According to the layout shown in FIG. 1, the conveyed object 100 is carried into the painting and drying oven 6 and undergoes painting and drying operations. If the transport vehicle 7 enters the coating and drying oven 6 at this time, the equipment in the control box 23 and the motor 15 will be adversely affected by heat, so the drive vehicle 7 is separated and the detour route 3 is detoured. That is, the driving truck route switching means 4 causes the driving truck 7 to be transferred to the detour route 3, and as shown in FIG. It is composed of a mobile platform 43 that moves horizontally, a drive means 44 that reciprocates the horizontal platform 43, and two mutually parallel guide rails 45 and 46 supported by the horizontal platform 43. . The driving means 44 consists of a turning bar 49 which is turned by a motor 48 supported on a fixed machine frame 47, and a rail 51 to which a roller 50, which is supported on the tip of this lever, is iron-coupled. is attached to the movable base 43 in a direction perpendicular to its lateral movement, and one rotation of the lever 49 causes the movable base 43 to reciprocate once. The guide rails 45 and 46 have the same structure as the rails of the transport route 1 and the detour route 3, and when the horizontal work table 43 is in the original position, the guide rail 45 is in the rail connection position of the transport route 1, and the lever 49 is in the rail connection position of the transport route 1. When the horizontal work table 43 is moved to a predetermined position by rotating half a turn, the guide rail 45 is displaced to the position where it connects to the rail of the detour route 3, and the guide rail 46 moves to the rail connection position of the conveyance route 1. When the lever 49 is rotated by another half turn, the mobile platform 43 returns to its original position, and the guide rails 45 and 46 return to their original positions. Immediately before the driving truck route switching means 4, a connecting means 34 between the driving truck 7 and the front floating truck 8 is provided.
The operated lever 41 is rotated rearward and upward by a fixed cam using the movement of the drive cart 7, and the movable engagement piece 40 is moved upward against the spring 39 to be disengaged from the engaged portion 37. Due to the situation, the transported object 10 along with the front and rear rain floating carts 8 and Z9
is stopped, and only the driving cart 7 is moved to the top of the guide rail 45 of the bonito route switching means 4 and stopped. In this state, the lever 49 is rotated half a turn to connect the guide rail 45 to the rail of the detour route 3, and the driving cart 7 is started and the detour route 3 is started.
Run J. On the other hand, the conveyed object 1 that was stopped
0 is fed into the working section 2 by the pusher 53 of the feeding means 52 shown in FIGS. 6 and 7 pushing the hook hanging vertical rotation shaft 29 of the front floating cart 8.

That is, the pusher 53 is of an anti-back type, which is pivotally supported by a vertical shaft 56 on a sliding body 55 which is loosely attached to a guide rod 54, and is biased by a spring 57 into a pushing posture that touches a stopper 58. When the vertical rotating shaft 229 of the partial floating carriage 8 pushes the pusher 53 forward and to the side against the spring 57 and reaches a position in front of the pusher 53, the partial floating carriage 8 is separated from the drive carriage 7 and stops. 59 is a camshaft, and a movable body 6 is iron-engaged with the camshaft.
It has an endless screw cam groove for reciprocating the 0.

The movable body 6 and the sliding body 55 are connected to each other by a vertical pin 61, and by rotating the camshaft 59 by a motor 62, the sliding body 55 reciprocates together with the movable body 60, and in the forward stroke, the pusher 53 moves forward. 3 floating trolleys 8
Promote. In this way, the feeding means 52 moves the working section 2
Both the front and rear floating carts 8, 9 sent to the front and rear movable carts 8, 9 pass through the guide rail 46 of the route switching means 4, and then the lever 49 of the means 4 is rotated half a turn, and the guide rails 45, 46 are returned to their original positions. However, when the guide rail 45 is returned to its original position after the driving trolley 7 has transferred to the detour route 3, and then the floating trolleys 8 and 9 are sent to the work section 2, the guide rail 46 is not necessary. All you have to do is move the book guide rail 45.

- The conveyed object 10 sent into the working section 2 is transported by a propulsion means 63 shown in FIGS. 8 and 9.
As a result, the front movable trolley 8 is propelled, and as a result, moves within the work section 2 at a predetermined speed.

That is, the propulsion means 63 includes a screw feeder 65 supported by a plurality of bearings 64 in parallel to the moving direction of the floating cart, a drive motor 66, and a gear pair 67, 68 that transmits the rotation of the motor 66 to the screw feeder 65. It is composed of a chain 69 and a pair of gears 70 and 71, and the driven roller 31 of the front floating truck 8 is backed by the vane plate 72 of the rotating screw feeder 65. Normally, the front roller of the pair of front and rear driven rollers 31 is backed by the blade plate 72, but while passing the bearing 64, the rear roller is backed by the blade plate 72 on the upper side of the bearing 64. . Before the idle movable carts 8 and 9 moved by the above-mentioned propulsion means 63 finish passing through the work zone 2, the drive cart 7 self-propelled along the detour route 3 is moved by the route switching means 5 as shown in FIG. It has reached the outer end position of work section 2 and is waiting.

That is, this route switching means 5 is also similar to the route switching means 4, and the driving cart 7 is waiting on the movable guide rail at the rail connection position of the transport route 1. When the rail is on a lateral movement guide rail and moves, the electromagnetic brake 1
6 is working and the drive truck 7 is braked, but the transport route 1
When the lateral movement guide rail finishes displacing to the rail connection position,
The electromagnetic brake 16 is released. When the floating carts 8 and 9 are pushed out of the work zone 2 by the propulsion means 63 in this state, the rear driven roller 31 of the front floating cart 8 is pushed out from the screw feeder 65, and immediately before the rear driven roller 31 is pushed out from the screw feeder 65, the front floating cart 8 and the driving The coupling means 34 with the truck 7 automatically engages and connects, further pushing the driving truck 7 a certain distance. By detecting the movement of the driving cart 7 and operating the motor 15 of the driving cart 7 to move the driving cart 7 forward, the moving carts 8, 9, 0 conveyed objects 1, and the driving cart 7 are moved again.
It moves along the conveyance route 1 while being towed by. The conveyance device of the present invention can be implemented and used as described above, and its characteristics include a propulsion drive truck that runs along the conveyance route, and a drive truck that can be freely connected to and detached from the drive truck. A detour route for detouring only the driving cart that has been detached from the floating object support vehicle, with respect to a work section set in the transport route, the conveyance device comprising a floating object support vehicle. are arranged in parallel, and a driving trolley route switching means is provided before and after the working section for switching the driving trolley between the detour route, and in the working section, another propulsion means for propelling the floating trolley is provided. The point is that they are arranged side by side.

According to the device of the present invention having such features, the drive cart is separated from the idle cart before the entrance of the work section and enters the detour route so that the drive cart does not enter the work section. Only the movable cart that supports the object to be transported enters, and is propelled at a predetermined speed by a propulsion means dedicated to the floating cart installed in parallel to this work zone to transport the object in the work zone. The floating truck that has been propelled to the end of the road is connected again to the driving truck waiting at the exit of the work area via the detour route, and the transported object supported by the floating truck is transported by the driving truck. I can do it.

Therefore, when the work zone is used as a zone for painting and drying objects to be transported, when the propelling trolley enters the work zone, the control equipment and motors of the drive trolley cannot be used. -Events- may be affected by adverse thermal effects, or in cases where it is preferable not to install a rail for power supply and control signal transmission/reception to the drive vehicle in the work section, or when carrying out work on transported objects. In relation to this, the system of the present invention is extremely effective in cases where objects must be moved at extremely low altitudes that cannot be stably achieved with self-propelled drive carts. It is something that can be put to good use.

Moreover, since the object to be transported can always be transported while being supported by the floating cart for supporting the transported object, it is possible to transport the object in a state where it is always supported by the floating cart for supporting the object. There is no need to load and unload the objects to be transported onto the transport means, and there is no need to reduce work efficiency.

Brief Description of the Drawings Figure 1 is a plan view showing an example of a lift-out, Figure 2 is a side view showing how the carts are connected to each other, and Figure 3 is a longitudinal sectional front view showing the driving cart and guide rail. , FIG. 4 is a longitudinal sectional front view showing the rear floating bogie and guide rail, FIG. 5 is a partially cutaway plan view of the driving bogie route switching means, FIG. Figure 7 is a longitudinal front view of the same.
Figure 8 is a partially cutaway side view of the vicinity of the floating bogie propulsion means, Figure 9
The figure is a longitudinal sectional rear view of the same.

1... Conveyance route, 2... Work section, 3
...... Drive bogie detour route, 4, 5... Small/drive bogie route switching means, 6... Painting and drying oven, 7...
・Drive truck, 8...Front floating truck, 9...
・・Rear movable trolley, 10・・Transferred object, 12・
...Top rail, 13...Bottom rail,
14... Friction drive theory, 15... Motor, 16
......Electromagnetic brake, 21...Rail for power supply and control signal transfer, 22...Collector for current collection and control signal transfer, 25...Proximity switch for stopping, 30...Hook for hanging the transported object, 34, 35
......Connection means, 37...Engaged portion, 4
0...Movable engagement piece, 41...Operated lever for disconnection, 52...Idle carriage feeding means, 63...Propulsion means.

Figure 1 Figure 3 figure N vertical figure 〇 ship figure to ship Figure 4 Figure 5 figure 〇 ship figure ○ rudder

Claims (1)

[Claims] 1. A transport device comprising a propulsion drive cart that travels along a transport route, and a floating trolley for supporting a transported object that can be freely connected to and detached from the drive trolley, the work section being set in the transport route. In contrast, a detour route is provided in parallel for detouring only the drive vehicle that has been detached from the floating vehicle for supporting the transported object, and a drive vehicle is provided in which the drive vehicle is transferred between the detour route and the front and back of this work section. A conveyance device comprising a route switching means and a separate propulsion means for propelling the movable cart arranged in parallel in the work section.