JPH0555427B2 - - Google Patents

Description

[Detailed Description of the Invention] a) Industrial Application Field This invention relates to the orientation of articles on a table,
In other words, it relates to a device that stacks and transports newspapers by changing the facing direction, and more specifically, in a stacker that counts, sorts, and stacks newspapers that have been printed and folded, the table is rotated to stack the newspapers on top of the pile. It relates to a device that changes direction, accumulates and carries out. However, the articles targeted by the present invention are not limited to the above-mentioned newspapers, but also extend to similar articles.

b) Prior Art As is well known, a folded newspaper is thick and raised on the fold side and thin on the non-fold side. Therefore, if they are stacked in the same direction, the cargo will collapse. Therefore, in order to prevent this, it is customary to stack and transport a predetermined number of containers by alternating their orientation by 180 degrees. In this way, the table for accumulating newspapers is provided with an alternate 180° turning mechanism and a delivery mechanism.

In conventional newspaper stacking tables, an ejecting mechanism was built into the redirection mechanism. Therefore, the unloading mechanism was forced to perform the same reversing motion in unison with the table each time the table was redirected.

U.S. Patent No. 4,068,567 discloses that the area of the table,
In particular, the area on both sides has been expanded, and an endless chain drive mechanism with a gate and sweeping rod attached to the expanded table has been installed. Therefore,
The widthwise footprint of the table is considerably larger than that of the stacks, which are rotated in unison.

In contrast, U.S. Patent No. 4103785
A turntable for stacking newspapers is divided into two large and small irregularly shaped members by a path that is offset from the center of rotation, and an endless chain drive is installed on the rotary body integrated with the table so that a push rod can run along the path. Incorporate mechanisms. Therefore, the width of the turntable could be made narrow enough to be approximately equal to that of the stack, but the endless chain drive mechanism is mounted eccentrically on the rotating body.

c) Problems to be Solved by the Invention As described above, conventional table devices have incorporated an unloading mechanism onto the orientation changing mechanism. Therefore, the total mass of the rotating body is large and heavy compared to the accumulated objects, and the space and driving force required for rotation are also large, and the inertial force is large, so when the rotation stops, The damping and braking means required also required corresponding equipment.
Furthermore, due to the unbalanced weight distribution of the rotating body, there was a concern that durability would be lacking due to vibration and uneven wear.

The purpose of this invention is to reduce the total mass and inertia of a rotating body, thereby saving space, time, driving force, damping and braking means, etc. required for rotation, and to save energy quickly and efficiently, and to distribute the weight of the rotating body. It is an object of the present invention to provide a device for changing and carrying out a newspaper stack, etc., which can equalize the rotational speed and improve the durability of a rotating support part.

d) Means for Solving the Problems In order to achieve the above-mentioned object, the present invention consists in disposing the carrying-out member and its driving mechanism completely separate and independent from the table and its rotating mechanism on the machine base. . In other words, a rotatable table is divided into a plurality of members by a passage passing through its center of rotation, and the drive mechanism is installed as a machine so that the carrying-out member can move along the passage. and as a mechanism for synchronously rotating the plurality of table members, an arc-shaped pedestal having a circular shape centered on the rotation center, but the circular part is separated by the passage, is provided on the machine pedestal, The pedestal rotatably guides and supports the plurality of table members, while fan-shaped gears centered on the rotation center are provided protruding from the lower part of each of the table members, and a drive that transmits synchronous rotation to each of the sector-shaped gears. A mechanism is disposed on the machine base.

e) Effect Since the table is divided into multiple members by a passage passing through its center of rotation, the relative position of the passage with respect to the machine base at the table's initial position and 180° rotation position is the same, although in opposite directions. position. Therefore, the unloading member and its drive mechanism installed to pass through the passage do not need to be installed on the rotating body as in the past, but are placed on an immovable base separate from the rotating body. It becomes possible to do so.

The table, which is divided into a plurality of members by a passage, is maintained in a state in which the passage is maintained by being guided and supported by an arcuate pedestal and by transmitting synchronous rotation to a fan-shaped gear provided for each member. Rotational displacement is possible.

Therefore, the unloading member moved by the drive mechanism provided on the immovable machine base can be moved to the initial position of the table and
In both 180° rotational positions, the table can be smoothly moved along a path provided in the rotating body including the table.

f) Examples Table 1 shows articles not shown, for example:
A receiving plate on which a folded newspaper is placed, which has a passage 3 passing through its center of rotation 2.
For example, two members 1a and 1b
It is divided into.

A pair of carrying out members, e.g. upright bars 4 and 5
are supported at equal intervals by a pair of identical endless chains 8 and 9 that circulate horizontally between the upper and lower machine stands 6 and 7, and they move along the passage 3 as the chains rotate. Due to this movement, the articles on the table 1 are carried out to the outside. The pair of endless chains 8, 9 have front and rear sprockets 10, 11 and 1, respectively.
Further, the shafts 14 and 15 of each sprocket are rotatably supported by the upper and lower machine stands 6 and 7, respectively. For example, in FIG. 4, the drive system includes a relay sprocket 16 attached to the lower end of the shaft 14, and a lower machine stand 7.
A drive source, such as a geared motor 17 with a brake, is provided on the lower surface of the motor, and a power side sprocket 18 and the relay sprocket 1 are provided on the output shaft of the geared motor 17.
6 and an endless chain 19 for power transmission. Thus, the pair of upright bars 4 and 5 are moved in the direction of the arrow shown in FIG.
The articles on the table 1 are carried away as it passes through the passage 3.

In addition, as shown in FIGS. 1 to 3, the opposite surfaces of the table members on both sides forming the passage 3 are made of a material having elasticity to the extent that it does not interfere with the movement of the carrying-out members 4 and 5, for example. , brush 20,2
0 to prevent foreign matter from entering the passageway 3.

Now, an example of a rotating mechanism for the table 1 divided into a plurality of members 1a and 1b is as follows.

First, the plurality of table members 1a and 1b are each rotatably guided and supported by a circular arc-shaped pedestal 21 projecting from the upper machine pedestal 6. The pedestal 21 is composed of two circular arcs centered on the rotation center 2 and separated by the passage 3. A large number of followers 22 that are guided in contact with the arcuate base 21 are pivotally supported on the lower surfaces of the plurality of table members 1a and 1b. Therefore, the plurality of table members 1a and 1b have their followers 2
2 is brought into contact with and guided by the arcuate base 21, thereby making it possible to rotate around the rotation center 2.

The plurality of table members 1a and 1b rotate synchronously with each other while maintaining the interval of the passage 3 between them. An example of the synchronous rotation drive mechanism is as follows.

A semicircular fan-shaped gear 23 centered on the rotation center 2 is provided at the bottom of each of the table members 1a and 1b.
23 protruding from each other, and the passage 3 is formed between the rear surfaces of the pair of sector gears.

In FIGS. 2 to 4, each fan-shaped gear 23, 23
are engaged with two gears 24, 25 and 26, 27 at different phases, respectively, and are driven by their rotation. The reason why the two gears are engaged in different phases for each sector gear is that even if the engagement with one gear is disengaged due to the passage 3 between the sector gears and power is no longer transmitted, Since the engagement from the other gear is maintained and power is transmitted through it, there is no rotational slowness in each sector gear, and both sector gears are always synchronous and capable of driven rotation.

The shafts 28, 29 and 30, 31 of each gear are rotatably supported by the upper and lower machine bases 6 and 7, respectively, and their respective lower ends reach below the lower machine base 7, and their lower ends reach below the lower machine base 7. pulleys 32, 33 and 34,
35 are attached to each pulley, and an endless timing belt 36 is stretched around these four pulleys, and the belt 36 is constantly stretched between the four pulleys by the action of a tension pulley 37.

In FIGS. 2 and 4, the four shafts 2
An arm 38 is provided on one of the shafts 8, 29 and 30, 31, e.g.
The other end of the air cylinder 39 is rotatably supported by the machine base F.

In the above configuration, when the rod 40 of the air cylinder 39 is retracted from the extended position shown in FIG. 4 to the contracted position and then continuously extended to the extended position again, the rod 40 passes through the dead center of the contracted position due to inertia force. It is possible,
Thus, the arm 38 reaches a position displaced by 180 degrees in the direction of the hour hand with respect to the shaft 29, and accordingly,
pulley 33, endless timing belt 36,
Since the gears 24, 25, 26, 27 rotate 1/2 at the same time via the other pulleys 32, 34, 35, the pair of fan-shaped gears 23, 2 that engage with them
3 also rotates 1/2 in synchronization, and the table members 1a and 1b integral with each sector gear rotate 1/2, that is, change direction by 180 degrees in the counterclockwise direction. After a predetermined number of newspapers have been accumulated, the signal is input and the air cylinder 39 is activated again, and the rod 40 takes one stroke, that is, shortens from the extended position and returns to the extended position again, as shown in FIG. Returning to the position, the table members 1a and 1b rotate 1/2 turn in the opposite direction, that is, change their direction by 180° in the direction of the hour hand.

In FIGS. 2 and 4, an example of shock mitigation means that occurs when the table 1 stops rotating is as follows.
An arm 41 for braking when rotating 180° in the hour hand direction is protruded from one of the shafts of the gears 24, 25, 26, and 27, for example 28, and a braking member, for example a shock damper, is provided at the corresponding position of the machine base 7. On the other hand, an arm 43 for braking when rotating 180 degrees in the counterclockwise direction is provided protruding from the shaft 31, and a braking member, for example, a shock damper 44 is provided in a corresponding position on the machine base 7. In this way, the impact generated when the table stops rotating is alleviated by the contact between the arms 41 or 43 and the corresponding dampers 42 or 44. Braking members may be provided at positions corresponding to bidirectional rotation of one or both of the arms 41 and 43 so as to come into contact with each other.

On the other hand, a predetermined space is defined on the table 1 in which an article is placed around the center of rotation of the table 1, and when the article is a collection of newspapers, for example, the space is defined as in the illustrated embodiment. A pair of side members, e.g., plates 45 and 46, regulating both sides of the accumulated articles are fixed on the table members 1a and 1b, respectively, while members, e.g., a pair of gate plates 47, each regulating the front and rear sides of the accumulated articles, respectively. 48
and 49, 50 are provided. The gate plates in the article carry-out direction, that is, the gate plates indicated by numerals 49 and 50 in FIG. Although a fixed type is sufficient, in the illustrated embodiment, all gate plates on both the front and rear sides are made openable and closable in order to accommodate changes in the delivery direction. In addition, the passage 3 is made so that it is not blocked when each gate plate is in the closed position or in the open position.
The length of each gate plate is limited.

As illustrated in FIGS. 5 and 6, the opening/closing means for each gate plate 47, 48, 49, 50 is the side plate 45 on the table members 1a and 1b.
and a base shaft 51 at a predetermined position outside of 46, respectively.
52, 53, and 54 are attached freely to rotate, and arms 55, 5 are attached in the front or rear direction from each base axis.
The gate plates 47, 48, 49, 50 are attached to the free ends of each arm via brackets 59, 60, 61, 62, respectively.

Furthermore, in FIG. 5, the left base axes 51 and 5
Arms 63 and 64 are protruded from the lower ends of each of the arms 63 and 64, and a link 6 is connected between the free ends of the pair of arms.
5, a second arm 66 is provided protruding from one of the base shafts 51 and 53, for example, the lower end of 53, and is attached to the free end of the second arm in the direction of closing the gate plate. tension spring 67
and an actuator, such as an air cylinder 68, for displacing the gate plate in the opening direction against the bias.

Similarly, in FIG. 5, arms 69 and 70 are provided protruding from the lower ends of the base shafts 52 and 54 on the right side, respectively, and the free ends of the pair of arms are connected by a link 71. For example, a second arm 72 is attached to the lower end of 52.
A tension spring 7 is provided at the free end of the second arm to bias the gate plate in the direction of closing the gate plate.
3, and an actuator such as an air cylinder 74 for displacing the gate plate in the direction of opening the gate plate against the bias thereof.

Therefore, when each air cylinder 68 and 74 extends its rod by the unloading command signal, the second
At the same time, the gate plates 49 and 48 are opened from the solid line position to the two-dot chain line position via the arms 66 and 72, the arms 64 and 70, and the base shafts 53 and 52, and the operations of the air cylinders 68 and 74 are linked respectively. 65 and 71, arms 63 and 6
9. Open the gate plates 47 and 50 from the solid line position to the two-dot chain line position via the base shafts 51 and 54.
When the conveyance of the article is completed and the next article is about to be conveyed onto the table, each of the air cylinders 68
and 74 rods are shortened, and the tension spring 67
and 73, each of the gate plates 47, 4
8, 49, and 50 are closed all at once, and articles, such as folded newspapers, are stacked one after another in the box regulated by them.

When the number of stacked newspapers reaches a predetermined quantity,
The air cylinder 39 is activated and the table member 1
a and 1b begin to rotate, and when the rotation stops, the dampers 42 and 44 for impact mitigation act, and furthermore, the table members 1a and 1b rotate a predetermined number of times, for example, 3 times, and then the fourth rotation occurs. As described above, when the accumulation is completed, the geared motor 17 with a brake is activated, the carrying-out member 4 or 5 moves along the path 3, and the articles on the table are carried out.

g) Effects of the Invention As described in detail above, the present invention allows the table 1 to be connected to the plurality of members 1a and 1 in the passage 3 passing through the center of rotation 2.
It is possible to apply synchronous rotational drive to the plurality of members while maintaining the passage 3, and the machine base of the passage 3 can be divided into two parts, both at the initial position of the table 1 and at the 180° rotation position. Since the relative positions with respect to 6 and 7 are in the same position although in opposite directions, the drive mechanisms 8 to 19 of the carrying out members 4 and 5 provided to pass through the passage 3 are connected to the rotary body including the table 1. It became possible to install it on an immovable base and 7 separate from the aircraft.

Therefore, the total mass of the rotating body can be reduced, and the weight distribution can be made approximately equal.
The space required for rotation is minimized, the time required for rotation can be shortened, a small driving force is sufficient, and the inertial force is reduced, so the shock mitigation means 42 and 44 when rotation is stopped can be simplified and small. Overall small size, light weight, quick,
It was possible to achieve increased energy saving and improved durability.

[Brief explanation of the drawing]

The drawings show a specific embodiment of the invention. Fig. 1 is a plan view, Fig. 2 is a longitudinal sectional front view taken along line 2-2 in Figs. 1, 3, and 4;
Figure 3 shows the 3rd part in Figures 1, 2 and 4.
4 is a cross-sectional side view taken along line 3; FIG. 4 is a cross-sectional plan view taken along line 4-4 in FIGS. 2 and 3;
5 is a plan view illustrating the operating state of the gate plate of the table portion in FIG. 1; FIG. FIG. 6 is a left side view of FIG. 5. DESCRIPTION OF SYMBOLS 1...Table, 1a, 1b...Divided table members, 2...Rotation center, 3...Passway, 4 and 5...Members for carrying out, e.g. upright rod, 6 and 7...
Upper and lower machine base, F... Machine base, 8 and 9... Endless chain, 10, 11 and 12, 13... Sprocket, 14 and 15... Shaft, 16... Sprocket for relay, 17... Drive source For example, a geared motor with a brake, 18... a sprocket on the power side, 19... an endless chain for power transmission,
20 and 20... Brush, 21... Arc-shaped pedestal,
22... Follower, 23, 23... Semicircular sector gear, 24, 25 and 26, 27... Gear, 28,
29 and 30, 31... shaft of each gear, 32, 33
and 34, 35... pulley, 36... endless timing belt, 37... tension pulley,
38... Arm, 39... Actuator, e.g. air cylinder, 40... Its rod, 41 and 43... Rotating brake arm, 42 and 44... Shock damper, 45 and 46... Pair of side members, e.g. plate, 4
7, 48 and 49, 50...Gate members such as plates, 51, 52 and 53, 54... Their respective pivot axes, 55, 56, 57, 58... Arms, 59,
60, 61, 62...Bracket, 63 and 64
... Arm, 65 ... Link, 66 ... Second arm, 67 ... Tension spring, 68 ... Actuator, e.g. air cylinder, 69 and 70 ... Arm,
71...Link, 72...Second arm, 73...
... tension spring, 74 ... actuator, for example an air cylinder.

Claims (1)

[Scope of Claims] 1. A rotatable table divided into a plurality of members along a passage passing through the center of rotation, and a rotatable table disposed on a machine base so that the carrying-out member can move along the passage. a drive mechanism for the carrying-out member; and an arc-shaped pedestal separated by the passageway and centered on the rotation center provided on the machine pedestal, the pedestal rotatably guiding and supporting the plurality of table members; A plurality of table members, each of which has a fan-shaped gear projecting from the lower part of each table member and whose center is the rotation center, and further includes a drive mechanism that transmits synchronous rotation to each of the sector-shaped gears, and which is disposed on the machine base. A device for changing the orientation of newspaper piles, etc., and having a synchronous rotation mechanism. 2. Claim 1, wherein the table is divided into two symmetrical members by a single path passing through its center of rotation, and a 1/2 circular sector gear is provided protruding from the lower part of each member. equipment. 3. In order to transmit synchronous rotation to all sector gears, at least one gear is always engaged with each sector gear, and a drive system is provided that rotates the gears in the same direction all at once. The device according to item 1.