JPH021050B2 - - Google Patents

Description

[Detailed Description of the Invention] Conventionally, an automatic paper sorting assisting device for feeding stacked paper has provided two rows (two holes) of communicating holes in a support body and fitted a paper suction cylinder that moves vertically with a spring. Then, by vertical movement of the two-hole paper suction cylinder, when the automatic lifting due to paper suction stops, the first hole side is brought into matching communication with the perforation leading to the outside, and the intake air on the first hole side is released. , is related to a means for generating suction air pressure on the other hole side based on the release, promoting the release of all paper absorption, and performing rotor paper feeding. In its function, this device with a two-hole configuration One hole side stops suction and immediately releases the paper, but the other hole side is released under reduced suction pressure, so strong paper suction resistance remains against the rotor feeding, making the paper feeding operation less smooth. However, if the start of paper feeding is adjusted to the timing when paper suction resistance is weakened, the paper feeding speed will be reduced by that amount.Furthermore, the conventional single-hole device has a complicated and large mechanism. In addition, there are drawbacks such as strong paper absorption resistance and poor paper feeding operation.

The present invention reliably eliminates the above-mentioned conventional drawbacks, and has a configuration in which large and small double pipes are combined and fitted to the support body, so that the suction force for absorbing paper is increased by the cylinder body of the outer cylinder. The strong paper absorption force of the area is strong and reliable, and when the rotor feeds the paper, the large paper absorption force is automatically converted to the small paper absorption force of the small area of the small diameter outer cylinder.
The rotor paper feeding work is made very light and easy with less suction resistance for the paper to separate from the paper, and it is possible to speed up the cylinder paper handling by automatically converting the large and small suction forces without any unreasonable force. By making the single-hole mechanism simple and easy to manufacture, the device can be made smaller and more economical, and the drawbacks of the conventional two-hole device can be overcome, making it less likely to break down. The purpose of this device is to provide a device with excellent performance in a small amount of space.The purpose of this device is to provide a support body with a ventilation chamber and a stepped circular hole running vertically from the center bottom of the chamber, and an air intake path from a vacuum pump into the chamber. A wide ventilation hole is drilled in the center of the bottom wall of the circular hole, and a cylinder body of the required length that protrudes downward from the circular hole with the upper part as a stopper edge is slid up and down. It is movably inserted and inserted into the main ventilation path from the intake path to the wide ventilation hole of the cylinder body and into the ventilation chamber from the cover plate portion that covers the cylinder body. A fixing device in which a small-diameter ventilation hole is opened toward the ventilation chamber, and a ventilation pipe of a required length and small diameter is connected in a manner that allows the wide ventilation hole of the cylinder to fit in and open/close as the cylinder moves up and down. A coil spring is fitted between the cylindrical body and the lid plate part of the ventilation lid body, so that the ventilation pipe opens and closes the wide ventilation hole of the cylindrical body at its tip by lifting and lowering the spring of the cylindrical body. In this way, two paths are provided from the intake path to the small-diameter ventilation hole of the ventilation pipe, and the small-diameter ventilation hole of the cylinder body related to the double combination fitting pipe is provided. This is characterized in that the large intake air in the main passage and the small intake air in the secondary passage are automatically converted into each other by fitting and opening/closing the air pipe into and out of the ventilation pipe.

An example of the embodiment of the present invention will be described with reference to the drawings. A ventilation chamber 2 is provided, and the ventilation chamber 2 is
An air intake passage 4 communicating from the main body 1 to the vacuum hose 3 is opened into the upper part of the chamber 2, and a stepped circular hole 6 into which a cylindrical metal 5 is fitted is fitted from the center bottom of the chamber 2 to the bottom surface of the main body 1. Vertical penetration, said metal 5
The cylinder hole 7 is a cylinder with an upper opening and a bottom that is slid into the cylinder hole 7, and a wide ventilation hole 9 is provided in the center of the bottom wall 8.
The metal is provided with a suction opening recessed groove part 10 of a suitable stepped recessed groove that communicates with the ventilation hole 9, and a stopper edge 11 that comes into contact with the upper surface of the metal 5 in the chamber 2 is provided on the upper opening edge of the metal. A cylinder body 1 of a required length that protrudes to a considerable length below 5.
2 is inserted so as to be able to slide up and down, and a cylinder cylinder is inserted into the upper opening of the chamber 2 from the center bottom of the stepped portion 14 that is inserted into the chamber 2 while keeping the gap 13 around it. A ventilation hole 15 having the same length as the body 12 and having a small diameter is opened outside the stepped portion 14 to open the cylindrical body 1.
A fixed ventilation lid body 17, which is made up of a series of narrow-diameter ventilation pipes 16 that fit through the wide ventilation holes 9 of No.
A coil spring 18 is interposed and inserted between the bottom surface of the pipe 1 and the ventilation pipe 16 through the spring 18.
The distal end of the cylindrical metal 5 is covered so that it projects slightly further downward than the cylindrical metal 5.

In the figure, reference numeral 19 indicates a connecting member that connects the air intake path 4 and the vacuum hose 3 of the main body 1, K indicates a holding claw that suppresses the rear end of the stacked paper P, and P' indicates the separated paper that has been sucked.

Note that the stepped portion 14 of the lid 17 is a design feature; the stepped portion 14 is omitted, and the above-mentioned narrow-diameter ventilation pipe 16 is provided directly in the center of the lid plate, and the ventilation hole 15 is used for ventilation. It can be designed to open into the room 2.

In addition, the small-diameter ventilation pipe 16 and the cylinder body 12
In addition to the above-mentioned illustrations, embodiments of combination fitting with
As shown in FIGS. 4-6, various designs are possible. That is, the bottom wall 8 of the cylinder body 12
Of course, when the vent pipe 16 is made into a normal bottomed part without providing the stepped suction groove part 10, it is necessary to make the vent pipe 16 so that its tip protrudes to a required length beyond the wide vent hole 9 of the bottom wall 8. The length of the ventilation pipe 16 can be made long or short (Fig. 4), or conversely, short enough so that the tip fits inside the ventilation hole 9 (Fig. 5). Alternatively, the tip of the ventilation pipe 16 may be finely stepped, and the ventilation hole 9 may be formed on the stepped surface.
The purpose of the design is to make the ventilation pipe 16 into a shape that closes the air hole 9 (FIG. 6).
As long as the shape and length are such that the tip of the ventilation pipe 16 can be opened and closed freely, various design changes are possible.
Further, depending on the case, the air intake path 4 provided from the main body 1 may be opened to the ventilation chamber 2 not from the main body 1 but from the lid 17.

Moreover, since the cylindrical metal 5 into which the cylinder body 12 is fitted is only a collar for the vertical movement of the cylinder body 12, it is omitted and the stepped circular hole 6 is made to have a hole diameter that matches the cylinder diameter. The cylindrical body 12 may be directly fitted into the vertical hole.

After the present invention is constructed as described above, the cylinder body 12 slides down into the cylindrical hole 7 of the cylindrical metal 5 by the coil spring 18, and the stopper edge 11 abuts the upper surface of the metal 5 to prevent the cylinder from sliding downward. body 1
The lower part of the metal 5 protrudes below the metal 5 and is in a stopped state.

In this case, air intake by the vacuum pump is as shown by the arrow in FIG. In the main ventilation path, a large amount of air is taken in from the wide ventilation hole 9, and at the same time, air is also drawn into the ventilation chamber 2 from the small diameter ventilation hole 15 of the narrow ventilation pipe 16 located within the cylinder body 12.
A two-way intake is carried out, with a small intake passage passing through the inside and leading to the intake passage 4, and this cylinder body 1
Due to the simultaneous intake of air from the main and secondary channels through the single wide ventilation hole 9 of 2, the cylindrical body 12 not only descends due to the spring pressure of the coil spring 18, but also the cylindrical body 12
2 becomes a rise-blocking cylinder due to the paper absorption blockage of the wide ventilation hole 9 as described later, even when the ventilation is changed to only the secondary passage from the small-diameter ventilation hole 15 of the ventilation pipe 16, the cylinder body No negative pressure in 12 and the ventilation hole 15
In relation to ventilation, the spring force will also cause the spring to fall.

Thus, the spring-loaded cylinder body 12 is adjusted to a position above the rear end of the single stacked paper P on the surface of the stacked paper P through the wide ventilation holes 9. Once set, the paper will be absorbed by the wide vent hole 9 of the cylinder body 12 which has been lowered by the spring, and the paper will be absorbed by the large suction force of the large suction area of the vent hole 9. It is truly powerful and reliable.

When the ventilation hole 9 of the cylinder body 12 is blocked by this absorbing paper, the cylinder cylinder body 12 will have a rising force greater than the spring pressure due to the strong intake force of the two-way intake.
The paper rises as it absorbs, and due to its strong adsorption, the stacked paper P
is reliably separated from the bottom paper. In this case, although not shown, a well-known air blower is used to
By blowing air to the rear end, paper separation is performed up to the front end of the paper, ensuring that each sheet can be separated one by one.

Then, the cylindrical body 12 automatically rises in a paper-absorbing state,
When the wide ventilation hole 9 fits into the tip of the narrow-diameter ventilation pipe 16 of the lid body 17 and becomes closed, the intake air from the ventilation hole 9 is cut off, and the paper absorbs large amount of air from a large area. It is opened, but the absorbent paper is vent pipe 1
The paper is automatically converted to a light absorbent paper in a small area due to the small suction force in the secondary ventilation path in the small diameter ventilation hole 15 of No. 6.

This light conversion and absorption in a small area results in very good paper separation compared to rotor paper feeding, so rotor paper feeding can be carried out easily with small paper feeding force and small resistance.

The rise of the cylindrical body 12 is stopped when the stopper edge 11 hits the bottom surface of the stepped portion 14 of the lid 17, and the rotor feeding of the separation paper P is completed.

When the cylindrical body 12 rises to the highest level, communication between the cylindrical body 12 and the ventilation chamber 2 is cut off, and the main ventilation passage is completely closed (see FIG. 2). next,
When the separation paper P is separated from the small-diameter ventilation hole 15 of the ventilation sub-path due to paper feeding and the sub-path opens, the negative pressure inside the cylinder body 12 is released and the cylinder body 12 is opened. As mentioned above, the paper is quickly and automatically lowered by the spring force, and the intake of air from the wide ventilation hole 9 is started, and a strong paper absorption action is started, and the large suction force per hole continuously and smoothly assists in paper sorting. Iterated at high speed.

In this way, in the device of the present invention, due to the vertical movement of the spring as the cylinder body 12 opens and closes the air intake, the stacked paper P can be adsorbed by a large area and large intake air from one hole in the wide cylinder, and instantly by the small air intake from the small hole. As a result of automatic conversion to light absorbent paper, the rotor feeds the absorbent paper with this small suction force, and since the suction resistance is extremely low, the rotor feeds the paper reliably and smoothly with a very small paper feed force, and the paper absorbent part Since no strain is placed on the paper feeding section, there is no need to cause any malfunction of related devices, and safe paper sorting assistance and rotor paper feeding work can be guaranteed.In addition, the combination fitting mechanism of the double ventilation tubes By using the mutual conversion of large and small suction forces based on The defects of the two-hole device can be reliably eliminated, and the mechanism of the one-hole device is simple and easy to manufacture. In addition, the simplification of the mechanism allows for miniaturization, the residual adsorption force is small, and the instantaneous change in large and small adsorption forces speeds up and down movement of the cylinder, making cylinder paper handling even faster. It has excellent effects such as contributing to speeding up paper feeding work.

[Brief explanation of drawings]

The drawings show an embodiment of the device of the present invention,
Fig. 1 is a longitudinal cross-sectional view of the cylinder body in a descending paper-absorbing state with a part of the supporting body omitted, and Fig. 2 is a longitudinal cross-sectional view of the same cylinder body when it stops rising.
FIG. 3 is a bottom view of the combination of the cylinder body and the vent pipe portion, and FIGS. 4 to 6 are partial sectional views showing other embodiments of the vent pipe for the vent hole portion of the cylinder body. shows the case of the long form, FIG. 5 shows the case of the short form, and FIG. 6 shows the case of the stepped form. 1... Support body, 2... Ventilation chamber, 3... Vacuum pump, 4... Intake path, 6... Step circular hole, 8
... Bottom wall, 9 ... Wide ventilation hole, 11 ... Stopper edge, 12 ... Cylinder body, 15 ... Small diameter ventilation hole, 16 ... Ventilation pipe, 17 ... Fixed ventilation cover, 18 ... coil spring.

Claims (1)

[Claims] 1. A stepped circular hole is inserted vertically through the support body from the ventilation chamber and the center bottom of the chamber, and an air intake passage from the vacuum pump is opened in the chamber. A cylindrical body of a required length, which has a ventilation hole and a stopper edge at the upper part and projects downward from the circular hole, is slid and inserted so as to be able to move up and down, and the wide ventilation hole of the cylindrical body is inserted from the intake path. and the center of the cylinder body from the center bottom of the stepped part that is inserted into the ventilation chamber with a gap around the upper opening of the ventilation chamber. A ventilation pipe of a required length and small diameter, which is inserted into the interior and opens a small diameter ventilation hole toward the ventilation chamber, and which allows the wide ventilation hole of the cylinder to be opened and closed by the vertical movement of the cylinder. A coil spring is fitted between the cylindrical body and the bottom surface of the stepped portion of the lid, so that the ventilation pipe can be moved up and down by the negative pressure of the cylindrical body and the spring force. The wide ventilation hole of the cylindrical body is covered at the tip so that it can be opened and closed by fitting and disengaging, and two paths are provided from the intake path to a subventilation path related to the path of the small diameter ventilation hole of the ventilation pipe. The large air intake in the main passage and the small air intake in the secondary passage are automatically converted into each other by fitting and opening/closing the wide ventilation hole of the cylinder body related to the combination fitting pipe to the small diameter ventilation pipe. Features an automatic paper handling assist device for paper feeding.