JPS5836552Y2 - Automatic cutter device of printing press - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an automatic cutter device for a printing press that prints stamps on recording paper and cuts and partially cuts the recording paper.

The purpose of the present invention is to create a compact and inexpensive device with a small number of parts by integrating stamp printing and auto-cutting, which were conventionally separate devices, into a series of devices and operations.

Another object of the present invention is to provide an autocutter device that can easily and freely select autocutting and partial cutting.

Still another object of the present invention is to provide an autocutter device that operates with low power consumption because stamp printing and autocutting are performed by the biasing force of a spring member.

An example of a conventional mechanism in which stamp printing and autocut are linked will be explained with reference to FIG.

In FIG. 1, the hammer 2 is rotated about the fulcrum 3 in the direction of arrow A by the suction of the plunger 1, and printing is performed by pressing the recording paper 5 against the intervening plate 6 via the ink ribbon 4. .

The cutter blade 7 is engaged with the hammer 2 through a connecting plate 8, and is rotated in the direction of the arrow about a fulcrum 9 by the suction of the plunger 1, thereby cutting the recording paper 5.

In this way, in the past, stamps were printed on recording paper and the recording paper was cut by suction using a plunger.
Generally, cutting recording paper requires a large cutting force, and clear stamp printing requires a large printing pressure, so a large current had to be passed through the plunger as a driving source.

Furthermore, since the plunger has a strong suction force, the noise generated when the plunger shaft is suctioned is also large.

Furthermore, the operating range of the cutter and stamp is limited to a certain extent by the suction stroke when the plunger shaft is suctioned by the plunger, so it is only used for cutting recording paper when issuing receipts, and is only used for partial cutting. It was not possible to issue receipts or tickets with (stub cut) applied.

Further, by interlocking the hammer 2 and the cutter blade 7, uneven stamp printing or double printing occurred.

It had drawbacks such as.

The present invention eliminates such drawbacks, and the second embodiment
This will be explained using FIG.

FIG. 2 is a mechanical diagram showing the operating principle of the auto-cut device.

In Figure 2, 10 is the maximum diameter of the two locations 10-1°1
0-3, a drive cam having a minimum diameter portion 10-2 and an intermediate diameter portion 10-4 and constantly rotating, 11 a drive lever rotating about a shaft 21, 13 a cutter blade, 14 a stamp, 15 is a stamp holder with a slit through which the cutter blade passes.

To explain the principle of operation, the drive cam 10 constantly rotates in the direction of arrow H. When the drive lever 11 is locked by the locking lever 16, only the drive cam 10 rotates and does not apply force to anything else. .

When desired characters or symbols are stamped on the recording paper 25 and the recording paper 25 is to be cut, when the electromagnet 17 is energized, the engagement lever 16 is attracted against the tension of the spring member 18, and the locking lever 16 is the engaging portion 11- of the drive lever 11.
2, and the drive lever 11 enters the operating state.

The drive cam 10, which constantly rotates continuously, rotates in the direction of arrow H,
The junction point with the drive lever 11 is the maximum diameter part 1 of the drive cam 10
When changing from 0-1 to the smallest diameter portion 10-2, the drive lever 1
1 is rotated in the direction of arrow B by a spring member 20 about a shaft 21 as a rotation center.

A portion 11-1 of the drive lever 11 and a portion 12-1 of the driven lever 12 are engaged, and when the drive lever 11 rotates in the direction of arrow B, the driven lever 12 rotates around the shaft 22 in the direction of the arrow. Rotate to .

The elongated hole 12-2 of the driven lever 12 engages with the pin 23 provided on the cutter blade 13, and the elongated hole 12-2 of the driven lever 12 engages with the pin 23 provided on the cutter blade 13.
-3 and a pin 24 provided on the stamp 14, and when the driven lever 12 is rotated in the direction of the arrow F by the drive lever 11, the cutter blade 13 and the stamp 14 are operated in the direction of the arrow F.

The cutter blade 13 operates in the direction of arrow F to remove the stamp holder 1.
The toothed portion 13-1 of the cutter blade 13 passes through the slit 15-1 provided in the cutter blade 13, and cuts the recording paper 25 at this time.

At the same time, the stamp 14 also operates and drives in the direction of arrow F, and the drive cam 10 rotates in the direction of arrow H, causing the rotation lever 11 to rotate.
While the stamp 14 is connected to the minimum diameter portion 10 - 2 of the drive cam 10 , the stamp 14 presses the recording paper 25 against the stamp holder 15 and prints a stamp on the recording paper 25 .

The drive cam 10 rotates in the direction of arrow H, and the drive lever 11
When the joining portion changes from the minimum diameter portion 10-2 to the maximum diameter portion 10-3, the drive lever 11 rotates in the direction of arrow C against the biasing force of the spring member 20.

When the drive lever 11 rotates in the direction of the arrow C, the driven lever 12 engaged with the part 11-1 of the drive lever 11 rotates in the direction of the arrow E due to the biasing force of the spring member 19, and the driven lever 12 rotates in the direction of the arrow E. Elongated hole part 12-2.12-3 and pin 23.2
The cutter blade 13 and the stamp 1 are engaged through 4.
4 operates in the direction of arrow G at the same time.

When the drive lever 11 reaches the maximum diameter part 10-1 of the drive cam 10, it engages with the locking lever 16, and even if the drive cam 10 continuously rotates, the drive lever 11 does not rotate and the cutter blade 1
3. The stamp 14 also remains in a standby state without operating.

Further, when the electromagnet 17 is energized and the joint part of the drive cam 10 with the rotary lever 11 changes from the second maximum diameter part 10-3 to the intermediate diameter part 10-4 in the direction of the arrow H, the operation principle is similar to that described above. The cutter blade 13 and the stamp 14 operate in the direction of arrow F, from the second maximum diameter portion 10-3 to the intermediate diameter portion 10-4.
Since the stroke from the first maximum diameter section 10-1 to the minimum diameter section 10-2 is smaller than the stroke from the first maximum diameter section 10-1 to the minimum diameter section 10-2, the tooth section 13-1 of the cutter blade 13 is a sleeve of the stamp holder 15).
15-1, the stamp 14 does not move up to the stamp holder 15, the recording paper 25 is partially cut (stub cut), and the drive lever 11 is moved to the first maximum diameter portion 10 of the drive cam 10. When it reaches -1, it enters a standby state.

Thereafter, by the same operation, the recording paper is cut, a stamp is printed on the recording paper, or a portion of the recording paper is cut (stub cut).

As described above, according to the present invention, the drive lever, which starts operating when the electromagnet is energized, is rotated by the biasing force of the spring member and the continuously rotating drive cam, and the cutter blade and stamp are simultaneously operated. Since the recording paper is cut and the stamps are printed by cutting the recording paper, the plunger does not directly cut or print the stamps, so a small electromagnet with a small excitation current can be used, simplifying the mechanism and saving power.

Furthermore, since cutting of the recording paper and stamp printing on the recording paper are performed at the same time, the stamp printing quality is improved.

Furthermore, since it is operated by a spring member, operation is reliable, and even if the cutter and stamp malfunction due to the use of thick paper that cannot be cut, there is no chance of damaging the printing press itself. Since the drive means is constantly rotating, the drive force is increased by inertia, the drive source can be made smaller, and cutting and stamp printing are stable.

In addition, depending on when the electromagnet is energized, it is possible to freely select whether to cut the recording paper, print a stamp, or partially cut (stub cut), and can not only issue receipts but also partially cut (stub cut) the recording paper with one printing machine. Tickets can be issued easily through one mechanism.

By adjusting the position of the stamp, it is possible to easily select whether or not to print the stamp during partial cutting (stub cutting).

FIG. 3 is a mechanical diagram in which a cutter blade and a stamp are integrated using only a drive lever as a drive member.

In FIG. 3, reference numeral 26 denotes a cutter blade with a stamp, which is engaged with the drive lever 11. When the drive lever 11 rotates in the direction of arrow B according to the operating principle explained in FIG. 27 operates in the direction of arrow J,
Cut the recording paper and print a stamp, or perform partial cutting (stub cut).

As described above, the present invention is an industrially useful invention and can be applied to other mechanisms, and the scope of the claims is not limited.

[Brief explanation of drawings]

FIG. 1 is a plan view of a conventional embodiment.
...Plunger, 2...Hammer, 3...
...Stamp fulcrum, 4...Ink ribbon, 5
... Recording paper, 6 ... Stamp printing plate, 7
...Cutter blade, 8...Connection plate, 9.
...Cutter fulcrum. FIG. 2 is a perspective view showing an embodiment of the present invention.
... Drive cam, 11 ... Drive lever, 12
...Followed lever, 13...Cutter blade, 14...Stamp, 15...Stamp holder, 16...Lock lever, 17...
・Electromagnet, 18.19.20...Spring member, 2
1.22...shaft, 23.24...pin, 25...recording paper. FIG. 3 is a plan view showing another embodiment of the present invention.

Claims (2)

[Scope of utility model registration request] (1) In a printing machine that prints characters or symbols on recording paper, if the electromagnet activated by a signal, the locking lever activated by the electromagnet, and the locking lever become disconnected, the spring member a drive member driven by a biasing force, a stamp member driven by the drive member to print on the recording paper, and a cutter member that cuts the recording paper, continuously rotating and engaging with the drive member; The driving member has two lengths and a short length.
An automatic cutter device for a printing press, characterized in that it is comprised of a cam member that provides a seeding stroke. (2) When printing and cutting stamps on the recording paper at the same time using the stamp member and the cutter member, the electromagnet is energized at the long stroke supply timing of the cam member so that the locking lever and the drive member When disengaging the engagement and partially cutting the recording paper with the cutter member,
2. The automatic cutter device for a printing press according to claim 1, wherein the electromagnet is energized at the short stroke supply timing of the cam member to disengage the locking lever and the drive lever.