JPS6153287B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cart with a turn mechanism for loading and unloading molds in an injection press machine, a die-casting machine, or the like.

When transporting molds into and out of various molding machines as movable molds and fixed molds, a transport mechanism such as a crane or chain block is generally used. However, this type of mold is quite heavy, and maintaining it in balance while aligning and installing it at a predetermined installation position requires a high degree of skill and requires a considerable amount of setup time. . For this reason, in those using the conventional conveying mechanism, there is a drawback that a reduction in the operating rate of various molding machines is unavoidable. Particularly in the case of producing a wide variety of products, molds must be replaced frequently, resulting in a huge amount of time lost.

Therefore, as a result of various studies in order to overcome all the problems when using the conventional mold transport mechanism described above, the inventor of the present invention has provided a traveling means configured to be able to travel in two orthogonal directions. A trolley is provided, and a roll unit that can selectively change the conveying direction of the article according to the moving direction of the trolley is provided on the upper surface of the trolley, and the traveling means and the roll unit are each held by a common jack with a reduction gear. This jack with a reduction gear is driven by an appropriate drive source to move the traveling means and roll unit positioned in a desired direction of movement up and down under the action of the jack, thereby engaging the wheels with the rails and moving the wheels onto the top surface of the bogie. By configuring the roll unit to protrude, it is possible to obtain a cart with a turn mechanism that can improve the space utilization rate and improve the efficiency of transporting and loading various heavy objects. I figured it out.

Therefore, an object of the present invention is to enable a trolley to run in two orthogonal directions, and also to enable the conveying means provided on the trolley to be changed in the same way as the traveling means of the trolley, and to convert these traveling means and conveying means. To provide a cart with a turn mechanism whose operations can be controlled by a common operating means and which can carry in and out various heavy articles such as molds in a narrow space with a simple control system.

In order to achieve the above-mentioned object, the present invention comprises a bogie equipped with a traveling means each having a pair of axles each having wheels capable of running in two directions orthogonal to the bottom, and a bogie on the top surface of the bogie. two types of roll units each acting in a direction corresponding to the moving direction of the traveling means are provided, and a common reduction gear jack is attached to each bearing device supporting each pair of axles of the traveling means and the corresponding roll unit, By driving the jack with a reduction gear with a predetermined drive source, the wheels in one direction are engaged with the rail, and one roll unit acting in the same direction is positioned to protrude above the other roll unit. It is characterized by

Next, embodiments of a cart with a turn mechanism according to the present invention will be described in detail below with reference to the accompanying drawings.

FIG. 1 is a plan view showing an embodiment of a cart with a turn mechanism according to the present invention. That is, in FIG. 1, reference numeral 10 indicates a frame of a bogie, and 12 indicates a rail for running the bogie criss-crossing in the X direction and the Y direction. The upper surface of the frame 10 of the truck has roll units 14 and 16 that can transport molds for loading and unloading in the X direction and the Y direction.
are provided respectively. X direction roll unit 1
4 includes a small roll 18 that is pivotally supported perpendicular to the X direction, and is arranged so as to be able to move up and down independently on the upper surface of the frame 10. Also, Y
The direction roll unit 16 is arranged so as to be able to move up and down independently on the upper surface of the frame 10, which is provided with a long roll 20 that is pivotally supported perpendicular to the Y direction.

Next, details of the drive mechanism of the truck according to the present invention will be explained with reference to FIGS. 2 to 4. Second
The figure is a front view of the main part of the trolley shown in Fig. 1 as seen from the direction of the arrow, Fig. 3 is a bottom view of the main part of the trolley shown in Figs. 1 and 2, and Fig. 4 is a - FIG. 3 is an end view of a main part seen from a line cross section. In FIGS. 2 and 3, drive motors 24A, 24B, 24C, which have drive shafts 22 extending in the X direction and Y direction, respectively, are centered on the back side of the upper surface of the frame 10,
24D is provided. These drive motors 24A-2
Each of the 4D drive shafts 22 is connected to a reduction gear jack 26A, 26B, 26 via a coupling.
C, axially connected to 26D. These gear reducer jacks 26A to 26D each have a reducer 28,
A pair of jacks 30, 30 are provided which are spaced apart in a direction perpendicular to the drive shaft 22 and are axially coupled to each other. Therefore, the rotational driving force from the drive motors 24A to 24D is transmitted to the reducer 2 via the drive shaft 22.
8 and is decelerated, and each corresponding jack 3
The control shafts 0 and 30 (not shown) are rotated to displace the adjustment shafts 32 and 32 of the jacks 30 and 30 in the vertical direction. However, in parallel with these reduction gear jacks 26A to 26D, axles 34A, 34
B, 34C, 34D are arranged, and these axles 34
Bearing devices 36 are provided at both ends of A to 34D, respectively.
Wheels 38, 38 are pivoted via 36. Note that these axles 34A to 34D are supported in a vertically movable manner by fixing bearing devices 36, 36 supporting the axles to the lower ends of the adjustment shafts 32, 32 of the jacks 30, 30, respectively.

In addition, the reduction gear jacks 26A to 26D each have a reduction gear 28 and jacks 30, 30 fixed to the back side of the upper surface of the frame 10, and each jack 3
The supporting end portions 40, 40 which are displaced relative to the adjusting shafts 32, 32 of 0 and 30 are coupled and fixed to the corresponding roll unit 14 or 16. That is, the support ends 40, 40 of the respective jacks 30, 30 of the jacks 30, 30 of the jacks 30, 30 of the jacks 26A, 26B with reduction gears, which correspond to a pair of axles 34A, 34B equipped with wheels 38, 38 for moving the truck in the X direction, are shown in FIG. It is connected to one roll unit 14 as shown in FIG. Further, the supporting ends 40, 40 of each jack 30, 30 of the jacks 30, 30 of the reduction gear jacks 26C, 26D, which correspond to a pair of axles 34C, 34D equipped with wheels 38, 38 for moving the truck in the Y direction, Combined with unit 16. Therefore, since the adjustment shafts 32, 32 and the support ends 40, 40 of the jacks 30, 30 are relatively displaced in the vertical direction, for example, the adjustment shaft 3
2, 32 is displaced downward, the axle moves down and the wheel engages on the rail, whereas the support ends 40, 40 are displaced upward and the wheel 38 engages on the rail 12. The roll units 14, 16, which can be transported in the same direction as the traveling direction, can be lifted above the upper surface of the frame 10. As a result, when the truck can move in the X direction, the roll units 14, 14 that can be moved in the X direction move upward, and when the truck can move in the Y direction, the roll units 16 that can be transferred in the Y direction move upward. , 16 moves upward.

FIG. 4 shows a drive mechanism for the axles 34A to 34D. In this embodiment, the axle 3
4A and the axle 34C are configured as a drive shaft.
That is, a truck drive motor 42 is attached to one side of the frame 10, and a drive shaft 44 of the truck drive motor 42 and an input shaft 48 of a speed reducer 46 are coupled by a chain transmission means 50. This reducer 46 has an output shaft 52 parallel to the axles 34A and 34C, respectively.
54 and corresponding output shafts 52, 54, respectively.
and the axles 34A, 34C form the chain transmission means 5.
6,58. In this case, the truck drive motor 42 is driven continuously, and the speed reducer 46 rotates between the output shafts 52 and 5 depending on the traveling direction and stop of the truck.
It is preferable if the configuration is such that the operation switching, rotation direction switching, and operation stop of No. 4 can be performed as appropriate.

Next, the operation of the cart with a turn mechanism of the present invention having the above-described structure will be explained.

First, when moving the cart in the X direction, the third
As shown in the figure, if the drive motors 24A, 24B are driven and the axles 34A, 34B are moved downward from the frame 10 under the action of the reduction gear jacks 26A, 26B, the corresponding wheels 38, 38 It engages on the directional rail 12 (see FIG. 2). In this case, wheels 38 corresponding to axles 34C and 34D,
38 will be separated from the Y direction rail 12. On the other hand, the gear reducer jacks 26A, 26B
Due to this action, the roll units 14, 14 move upward, making it possible to transfer the mold onto the carriage from the X direction. At this time, the axle 34A can be rotationally driven by the output shaft 52 of the reducer 46 (see FIG. 4), and the truck can be moved forward, backward, and stopped in the X direction.

Next, when moving the cart in the Y direction,
After moving the cart to a position where the rails in the direction and Y direction intersect, as shown in FIG.
Drives 4C, 24D, jack 26 with reducer
The axles 34C and 34D are moved downward from the frame 10 under the action of the wheels C and 26D, and the corresponding wheels 3
8, 38 onto the Y-direction rail 12. At the same time, the drive motors 24A, 24B are driven in reverse, and the axles 34A, 34B are moved upward from the frame 10 under the action of the gear reducer jacks 26A, 26B, and the corresponding wheels 38, 38 are moved onto the X direction rail 12. to move away from As a result, in the same manner as described above, the roll units 16, 16 move upward and the roll units 14, 14 move downward, making it possible to transfer the mold from the Y direction onto the carriage. At this time, the axle 34C can be rotationally driven by the output shaft 54 of the reducer 46 (see FIG. 4), and the truck can be moved forward, backward, and stopped in the Y direction.

As is clear from the above-mentioned embodiments, the truck according to the present invention not only allows the running direction of the entire truck to be changed by 90 degrees, but also allows the roll unit on the top of the truck to change at the same time as the running direction is changed. Direction changes are automatically performed to enable loading and unloading of articles according to the direction of travel. Therefore, the trolley of the present invention can be suitably applied to loading and unloading articles that require careful handling, such as heavy molds or high-precision molds. Further, since the operation of the truck can be performed entirely by an electric control system such as an electric motor and an electromagnetic clutch, starting and stopping can be easily controlled by providing an appropriate operation panel. In particular, the trolley of the present invention can efficiently carry molds into and out of a molding machine, etc., in cases where mold storage space or running space is narrow, etc., and improves the work efficiency of mold exchange. It is possible to improve the operating rate of various molding machines.

Although preferred embodiments of the present invention have been described above, within the scope of the spirit of the present invention,
Of course, various design changes can be made.

[Brief explanation of the drawing]

FIG. 1 is a plan view showing an embodiment of a cart with a turn mechanism according to the present invention, FIG. 2 is a front view of the main part of the cart shown in FIG. 1 as seen from the direction of the arrow, and FIG. The bottom view of the cart shown in FIG. 4 is a sectional view taken along the - line in FIG. 2. 10...Truck frame, 12...Rail, 1
4, 16... Roll unit, 18... Small roll, 20... Long roll, 22... Drive shaft, 24
A~24D... Drive motor, 26A~26D...
Jack with speed reducer, 28... Speed reducer, 30... Jack, 32... Adjustment shaft, 34A to 34D... Axle, 36... Bearing device, 38... Wheel, 40...
Support end portion, 42... Cart drive motor, 44... Drive shaft, 46... Speed reducer, 48... Input shaft, 50...
...Chain transmission means, 52, 54...Output shaft, 5
6,58...Chain transmission means.

Claims (1)

[Claims] 1. Consisting of a bogie equipped with a traveling means having a pair of axles each having wheels capable of running in two directions perpendicular to the bottom, and acting on the top surface of the bogie in a direction corresponding to the moving direction of the bogie. a common reduction gear jack is attached to each bearing device supporting each pair of axles of the traveling means and the corresponding roll unit, and the reduction gear jack is driven by a predetermined drive source. A trolley with a turning mechanism, characterized in that the wheels in one direction are engaged with the rails, and one roll unit acting in the same direction is positioned to protrude above the other roll unit.