JPS6015538B2 - Box reversing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a box reversing device, and more particularly to a box reversing device that can accommodate boxes of different sizes.

As is well known, the uncaser automatically takes out the contents inside the box, and after opening the flap on the top surface of the box with a flap opening mechanism, it is reversed with a reversing mechanism and transferred onto the contents conveyor. Next, the box body and the contents are separated by pulling up only the box body by a box lifting conveyor diagonally intersecting the contents conveyor.

The reversing mechanism of such an anchor is such that the outer guide member and the inner guide member are formed in an arc shape forming the same D circle, and the box body is passed between the two guide members by a feeding material to be reversed. However, in the reversing mechanism of conventional devices, it is necessary to replace the attachments in order to accommodate boxes of different sizes, which makes the mechanism complicated.
Furthermore, replacing attachments requires a considerable amount of time and effort. For this reason, most were considered specialized machines that were only used for cases of a certain size. The present invention has been made to eliminate the above-mentioned drawbacks, and by making the radius of the inner guide section in the reversing mechanism variable, it can be used for cases of different sizes, and moreover, it has improved operability. The present invention provides a box reversing device with good performance. Hereinafter, the present invention will be explained with reference to illustrated embodiments. FIG. 1 shows the entire reversible anchor. 1 is a supply conveyor, 2 is a synchronized conveyor, and is composed of a feeding member and a box-like guide section which are stretched between chains on both sides at a required interval. A control mechanism (not shown) is disposed between both conveyors 1 and 2, and the boxes continuously conveyed from the supply conveyor 1 are supplied one by one to each material to be sent on the synchronous conveyor 2 by the control mechanism. Reference numeral 3 denotes a well-known flap opening mechanism disposed on the synchronous conveyor, which opens each flap on the top surface of the box as the box is transferred.

Reference numeral 4 denotes an inverting device that inverts the box with the top flap opened by the flap opening mechanism 3 while holding the contents.

Reference numeral 5 denotes a content transport conveyor disposed at the outlet of the reversing device 4, and 6 a side flap receiving guide extending upward obliquely to the conveyor 5. The box body is pulled up by the synchronous conveyor 2 along the side flap receiving guide 6. Both conveyors 2, 5 and guide 6 transport the separated contents and the box, respectively. Therefore, the reversing device 4
As shown in the figure, it consists of an outer guide member 7- and an inner guide part 8, and both guide members 7 and 8 form an arc-shaped D circle centered on a fixed shaft 10, and a feed member 9 is used to move between the guide members 7 and 8. The pushed box can pass through and be reversed.

The outer guide member 7 also serves as a part of the outer frame of the anchor, and is formed of an arc-shaped plate member spanning about 18 inches. On the other hand, the inner guide member 8 is formed as shown in FIGS. 2 and 3.

That is, two disk-shaped fulcrum shaft mounting plates 11 are fixed to the fixed shaft 10 at a predetermined interval, and a cam plate 12 is supported on the outside of one of the mounting plates 11 via a bearing 13. There is. The cam plate 12 is
A portion less than 1'2 of the disc is formed into an arcuate shape with imperfections, and a plurality of long holes 14 are bored radially at equal intervals. In addition, at the center of the inner surface of the cam plate 12,
A worm wheel 15 is provided coaxially and integrally,
Further, the worm wheel 15 is meshed with the worm 16. Therefore, by rotating the worm 16, the cam plate 12 can be rotated. The long hole 14 is located near the circumference of the fulcrum shaft mounting plate 11.
The same number of fulcrum shafts 17 are supported at equal intervals. Further, a fulcrum member 19 is attached to both ends of the fulcrum shaft 17 via an arm 18, and the center portion thereof forms a freely rotatable free loft. A cam roller 20 is provided at the end of the fulcrum member 19 on the cam plate side, and each cam roller 20 is engaged in each elongated hole 14 of the cam plate 12, respectively. Therefore, the cam roller 20 is
The arm 81 can be moved along the outermost hole 14 in response to relative movement between the cam plate 12 and the fulcrum member 19 attached to the arm 81. Reference numeral 9 denotes a feeding section that extends between the chains 21 on both sides, and one side of the chain 21 is connected to the cam plate 1.
The other is supported by a support member 22 provided within the outer frame.

By configuring the inner guide member as described above, when the worm 16 is rotated, the cam plate 12 integrated with the worm wheel 5 is rotationally displaced, and the fulcrum shaft 17 supported by the fulcrum shaft mounting plate 11 is rotated. Since the cam rollers 20 are in fixed positions, the cam rollers 20 engaged in the respective elongated holes 14 move along the outermost holes 14 as the arms 18 supporting the rollers 20 change in orientation. By simultaneously moving the positions of all the cam rollers 20 in the same direction, the outer diameter of the inner guide member formed by the entire fulcrum member 19 changes. Therefore, by operating the worm 16 and changing the outer seat of the inner guide member 8 according to the size of the box to be passed between the guide members 7 and 8, it can be used for boxes of different sizes. It becomes possible.

That is, in the case of a large box, the cam roller 20 is moved toward the center of the long hole 14, and in the case of a small box, the cam roller 20 is moved outside the long hole 14.
By changing the radius of the inner guide village 8 formed by the entire fulcrum member 19, the distance between the outer guide member 7 and the inner guide village 8 can be significantly changed within the length of the outermost hole 14, The versatility of the case is greatly improved, and its operation is extremely easy, and fine adjustments can be made during operation. FIG. 4 shows another embodiment.

The outer guide member 7 and the inner guide member 8 basically have the same configuration as in the first embodiment, and furthermore, a motor and a pulley 23 are provided horizontally inward of the fixed shaft 10.
A flat belt 24 is wrapped around the center of the pulley 23 and the free rollers of each fulcrum member 19. The motor and pulley 23 can move freely in the horizontal direction, and by moving them horizontally in response to changes in the radial position of the fulcrum member 19, the tension of the flat belt 24 can be kept constant. It has become. Further, this flat belt 24 is rotated by the motor 23 in synchronization with the feeding member 9. Therefore, the reversing device according to this embodiment can be used for boxes of different sizes, and since the flat belt 24 that supports the bottom of the box rotates synchronously with the feeding member 19, the reversing device can be used for boxes of different sizes. can be transferred and reversed more smoothly.

Incidentally, it is also possible to synchronously rotate the flat belt 24 by the same motor as the feeding member 9 without using a separate motor for the pulley 23. As described above, the box reversing device according to the present invention is provided with a constriction mechanism that allows the guide member defining the arc diameter of the inner guide section to move in the radial direction. It can also be used as a case, and has the effect of significantly improving operability.

[Brief explanation of the drawing]

FIG. 1 is a side view showing one embodiment of the present invention, and FIG. 2 is a side view showing an embodiment of the present invention.
3 is a longitudinal cross-sectional view of the same embodiment, the upper half shows the state where the radius of the inner guide member is maximized, and the lower half shows the state where the radius is reduced. FIG. 3 is taken along line mm in FIG. 2. Cross section, 4th
This figure is a longitudinal sectional view showing a state similar to that of FIG. 2 of another embodiment. 7... Outer guide member, 8... Inner guide member, 9... Feed capital material, 19... Fulcrum member. Figure 1 Figure 2 Figure 3 Figure 4

Claims (1)

[Claims] 1 A box in which an outer guide member and an inner guide member form concentric arcs, and is provided with a feeding member for transporting the box, and the box is passed between the two guide members and reversed by the feeding member. In the body reversing device, the inner guide member includes a plurality of fulcrum members arranged along an arc, and is provided with a mechanism for expanding and contracting the diameter of the arc, which allows each of the fulcrum members to move in a radial direction. A box reversing device.