JPS6213251B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a material reversing machine used, for example, when changing a sheet from one side (front side) to the other side (back side) in a double-sided printing operation.

Conventionally, there have been devices of this type as shown in FIGS. 1 and 2. That is, in FIG. 1, reference numeral 1 denotes a paper discharge section of a printing machine, where printed sheets 3 are stacked on a pallet 5 carried by grips 2 of a chain conveyor. Reference numeral 4 denotes a carrier, onto which the pallet 5 is scooped up together with the stacked sheets 3, and the carrier is pulled out of the machine. Reference numeral 6 denotes another pallet to be placed on the paper, and with the pallet thus placed, the above-mentioned carrier is placed at the stationary reversing machine 7 configured as shown in FIG. carried by 4. In the reversing machine 7, the carrier 4 is inserted into a pair of forks 8, 8' positioned as shown. When an operating lever (not shown) is operated, the hydraulic machines 9, 9' are activated, and the forks 8, 8' are moved up and down, respectively, to clamp the paper 3 together with the pallets 5, 6. After the paper is held and the carrier 4 is pulled out, the drive motor 10 is activated by turning on an operating switch (not shown), and an H-shaped holding frame 11 is fixed, and has pulleys 12a at both ends. The rotating shaft 12 is rotated via a gear 13a fixed to both ends of the connecting shaft 13 and a chain belt 14, and the paper 3 is rotated 180 degrees in the direction of the arrow shown in the figure together with the holding frame 11, as shown in FIG. Moved to an inverted position. After the carrier 4 is inserted between the forks 8, 8' of the reversing machine 7, when the hydraulic devices 9, 9' are activated by operating the operating lever, the forks 8, 8' move up and down. is driven in the opposite direction,
The held paper is released, and the paper 3 is placed on the carrier 4 together with the pallets 5 and 6. Thereafter, the paper 3 is conveyed to the paper feed section 15 of the printing press 1 by the carrier 4.

Since the paper reversing machine used for double-sided printing work is configured as described above, the paper loading and unloading ports face each other, so the radius of movement is large, and it occupies a specific area. Considering the frequency of use, it requires a large amount of dead space, and the equipment cost is high. Moreover, since the paper is of a fixed type, a transport vehicle is required, and reloading operations must be carried out frequently. Not only is it extremely difficult to perform reversing operations, but there is also a risk that the paper may collapse.

This invention was made with attention to the above-mentioned circumstances, and it reduces the clamping pressure of materials as much as possible, eliminates the possibility of load collapse, makes reversing operations easy, has a small radius of movement, and facilitates reloading of materials. It is an object of the present invention to provide a material reversing machine that requires fewer operations and can shorten the time required for reversing work.

An embodiment of the present invention will be described below with reference to the drawings. 3 to 6, reference numerals 20a and 20b are a pair of wheel supports mounted on both sides of the aircraft body 21, and front wheels 22a and 20b are respectively attached to the tips of the respective wheels.
22b is provided. Reference numeral 23 denotes a rear wheel provided on the front surface of the fuselage 21, and 24 is a rotating body provided on the upper part of the fuselage 21 and rotatably supported on a support shaft 25. axis 26
is rotatably mounted, and a rod 28 of a hydraulic device 27 is connected to the other free end. Reference numeral 29 denotes an H-shaped frame provided at the rear part of the main body 21, which is composed of a pair of C-shaped frames 29a and 29b and a connecting plate 29c that connects both frames, and a substantially central portion of the connecting plate 29c is connected to the rotating frame 29. shaft 26 and disk 3
0 and are fixed in a sandwich shape. 31,
Reference numeral 32 denotes an L-shaped fork provided at the upper and lower portions of the one C-shaped frame 29a.
2a, rollers 3 are installed in the frame 29a, respectively.
It is slidably attached via 3. 34,3
Reference numeral 5 denotes an L-shaped fork provided at the upper and lower portions of the other C-shaped frame 29b, with pieces 34a and 35
a is provided with rollers 36 within the frame 29b, respectively.
The other pieces 34b and 35
b is the other piece 31b, 32 of the fork 31, 32
They each extend substantially parallel to b. 37a, 3
7b is the fork 31, 34 and fork 3 mentioned above.
2 and 35 connecting rods, 3
Hydraulic devices 8a and 39a are provided adjacent to the center of the C-shaped frame 29a, and are connected to the forks 31 and 32 via rods (not shown), respectively. 38b, 39b
is a hydraulic device installed adjacent to the center of the other C-shaped frame 29b;
4 and 35 via a rod 38c. 40 and 41 are the C-shaped frames 29a and 29
The side plate 42 fixed between both ends of b is a lock bar pivoted to one side plate 40, and
It is in contact with the outer peripheral surface of 0. Reference numerals 43 and 44 indicate an operating lever 45 provided on one side of the body 21, which is a manual handle provided on the body 21.

Next, the operation of the material reversing machine configured as described above will be explained based on the printing operation shown in FIG.
That is, the sheets 3 discharged from the paper discharge section 1 of the printing machine are stacked on the pallet 5, and when the number of sheets reaches a predetermined amount, the discharge from the paper discharge section is stopped, and then the paper 3 is discharged from the paper discharge section 1 of the printing machine. The above-mentioned mobile material inverter 200 is inserted into the container by means of the hand handle 45. At that time, first, when the operating lever 43 is tilted to the left, the hydraulic devices 38a, 38b, 39a, and 39b are activated, and the forks 31, 32, 34, and 35 are moved up and down at the same time, and the fork is fully opened as shown in the figure, and the pallet 5 is moved downwards. Insert the forks 32 and 35 into. Next, when the lever 43 is moved upward, the hydraulic devices 39a and 39b are
is activated, and only the forks 32 and 35 are raised, so that the paper 3 is raised together with the pallet 5.
After placing the pallet 6 on the paper 3, when the operating lever 43 is moved downward, the hydraulic device 38
a, 38b, the forks 31, 34
Since the paper 3 is lowered, the paper 3 is moved by the upper and lower fork 3
1, 32, 34, and 35. In this way, the paper 3 is held and the manual handle 45
When the operating lever 44 is pushed downward, the H-shaped frame 29 is rotated 90 degrees around the support shaft 25 by the action of the hydraulic device 27, so that it is horizontal. The paper is moved to the position and stands up. When the lock bar 42 is pulled out after the H-shaped frame 29 is brought into a horizontal state in this manner, the lock of the H-shaped frame 29 is released. Next, the H-shaped frame 29 is manually rotated horizontally through 180 degrees together with the rotation shaft 26 about one free end of the rotating body 24, and when the rotation reaches the end position, it is automatically locked by the lock bar 42. Next, when the operating lever 44 is tilted upward, the H-shaped frame 29 is rotated downward by 90 degrees by the action of the hydraulic device 27, so that it is returned to the vertical state, and the surface reversal operation of the paper 3 is completed. become. After that, the reversing machine 2 is rotated by the hand handle 45.
00 to the paper feed section 1 of the printing machine, and the paper is unloaded by operating the operating lever 43 using the upper and lower forks 31,
If the forks 32, 34, and 35 are moved up and down at the same time, the upper and lower forks will all be fully open, and the paper unloading operation will be completed.

Therefore, by performing the above-described series of operations, the reversing, transporting, and unloading operations of the sheet can be performed simply and easily using the reversing machine.

In the above embodiment, the reversing machine is used for reversing the printing paper, but the reversing machine is not limited to this. This invention can also be applied to the case where an item is turned over, etc., and the same effect as that of this application can be achieved.

As described above, according to the present invention, the material is turned over by holding the holding means horizontally and holding the material vertically so that it approaches a self-supporting state, and then turning over, that is, turning the material. It does not depend on the holding pressure of the material, therefore, the holding pressure of the material, that is, the clamping pressure, may be small.Moreover, it is in a self-supporting state and the load on the holding means (for example, H-shaped frame) changes constantly while the weight is being swiveled. Since it is supported without any problem, there is no need to worry about the load shifting.Furthermore, since the material loading and unloading ports are in one place, there is no need to move transport equipment, etc., making reversing work simple and easy. This is the result. In addition, because the radius of action is small, work can be done in a small space, improving work efficiency and making installation space more effective. In addition, by configuring a mobile material reversing machine that has both reversing and transporting functions, it is possible to easily move to the relevant department and perform reversing work when necessary, and the work of reloading materials is reduced. This has the effect of shortening the processing time and also eliminating the possibility of materials collapsing.

[Brief explanation of the drawing]

Fig. 1 is a work flow diagram showing the work process using a conventional material reversing machine, Fig. 2 is a perspective view showing the structure of the material reversing machine shown in Fig. 1, and Fig. 3 is a diagram showing the material reversing machine of the present invention. Work system diagram showing the work process used, Part 4
Figures to Figures 7 all show the structure of the material reversing machine shown in Figure 3 above. Figure 4 is its front view, Figure 5 is its side view, Figure 6 is its top view, and The figure is a partially enlarged side view. In the figure, 3 is paper, 21 is the machine body, 20a,
20b is a wheel support stand, 22a, 22b are front wheels, 2
3 is a rear wheel, 24 is a rotating body, 26 is a pivot shaft, 27 is a hydraulic device, 29 is an H-type frame, 31, 32, 3
4, 35 are Folk, 38a, 38b, 39a,
39b is a hydraulic device. Note that the same reference numerals in the figures indicate the same or equivalent parts.

Claims (1)

[Claims] 1. A frame having a support shaft and rotatably supported on the aircraft body via the support shaft, and one end of which is attached to the frame so as to be movable in a direction perpendicular to the support shaft. a pair of forks, which takes in and takes out the material by sandwiching the material between the forks in a vertical position, and supports the weight of the material with the frame in a horizontal position; vertical rotation means reciprocating between a vertical position and said horizontal position;
and a material reversing machine comprising horizontal rotation means for reversing the holding means by half a rotation in the horizontal state. 2. The vertical rotation means includes a rotating shaft fixed to approximately the center of the holding means, a rotating member rotatably supported on the fuselage and having the rotating shaft rotatably supported at one end, and the rotating member. The material according to claim 1, further comprising a reciprocating device connected to the other end and rotating the rotating member. 3. The material reversing machine according to claim 2, wherein the horizontal rotation means manually rotates the holding means horizontally using one end of the rotating member as a fulcrum. 4. The material reversing machine according to any one of claims 1 to 3, wherein the material is double-sided printing paper.