JPS62166648A - Facsimile equipment - Google Patents

Abstract

PURPOSE:To improve the recording paper cutting speed of a rotary cutter so as to make communication time shorter, by installing plural pieces of cutting blades to the rotary cutter at intervals in the rotating direction of the cutter. CONSTITUTION:A rotary cutter 11 is provided with two cutting blades 12 and 12 at regular intervals, namely, at an interval of 180 deg. in the rotating direction of the cutter 11. When one page quantity of picture information is recorded on recording paper 2 by means of a recording head 5, the recording paper 2 is fed to a cutting device 7 by a platen roller 4. When the recording paper 2 arrives at the cutting position of the cutting device 7, a step motor which drives the rotary cutter 11 is started to rotate and the recording paper 2 is cut off at the point of contact of one cutting blade 12 of the rotary cutter 11 and a fixed cutter 8. After cutting, the rotary cutter 11 rotates 180 deg. from the position before rotation and stops, and then, this facsimile equipment starts the next operation.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention performs recording on continuous paper, and as shown in the continuous paper, a continuous recording paper 2 drawn out from a recording paper roll 1.
A guide roller 3 that guides the recording paper during recording, a platen roller 4 that supports the recording paper during recording, a recording head 5 and its press spring 6 that records the received information on the recording paper, and a cutting device that cuts the recording paper after recording into a predetermined size. It has a rank of 7. Cutting device 7
The cutter 8 is composed of a fixed cutter 8 that is fixed at a fixed position and a rotary cutter 9 that rotates at a fixed position, and one cutting blade 10 is attached to the rotary cutter 9.

In the cutting device 7, when a recording paper cutting command is issued to the cutting device 7 from the control unit controlling the facsimile device, the rotary cutter 9 starts rotating, and the fixed cutter 8
Cut the recording paper at the point of contact. Thereafter, the rotary cutter 9 rotates to the initial position and stops. In other words, the rotary cutter 9 needs to rotate 360 degrees to perform one cut.

Problems to be Solved by the Invention However, with this configuration, in order to increase the communication speed, the rotation speed of the rotary cutter must be increased,
For this purpose, it is necessary to increase the size of the motor for driving the rotary cutter, which poses a problem in that it is expensive.

The above problem arises for the following reasons. In other words, the actual cutting time with a rotary cutter is an extremely short time between the rotational force and the cutting blade of the vine contacting the fixed cutter to cut, but in the case of a facsimile machine, there is a communication procedure with the other machine. However, the cutting is complete only after the rotary cutter rotates 360 degrees and returns to its original position, and the next operation begins. Therefore, in order to shorten the communication time, it is necessary to shorten the cutting processing time (time for the rotary cutter to rotate once). If you use the same motor and increase its rotational speed, the torque will decrease. Since a certain amount of torque is required to cut the recording paper, a large and expensive motor is required.

The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a facsimile device that can increase recording paper cutting processing speed and shorten communication time without increasing the rotation speed of a rotary cutter. do.

Means for Solving the Problems In order to solve the above-mentioned problems, the present invention provides a rotary cutter with a structure in which a plurality of cutting blades are arranged at intervals in the rotational direction of the rotary cutter. .

Function: Due to the above-described configuration, the present invention eliminates the need to rotate the rotary cutter 360 degrees for one cutting process. In other words, when the number of cutting blades is n, the rotary cutter is simply rotated by 1/n.
It is only necessary to rotate the cutter, and therefore, it is possible to shorten the time required for one cutting process without increasing the speed of the rotary cutter.

Embodiment FIG. 1 is a schematic sectional view of a recording system of a facsimile machine having a two-blade rotary cutter according to an embodiment of the present invention. The recording system of this facsimile machine is similar to that shown in FIG.
A guide roller 3 that guides the recording paper during recording, a platen roller 4 that supports the recording paper during recording, a recording head 5 and its press spring 6 that records the received information on the recording paper, and a cutting device that cuts the recording paper after recording into a predetermined size. It has a rank of 7. Cutting device 7
is composed of a fixed cutter 8 that is fixed in a fixed position and a rotary cutter 11 that rotates in a fixed position.The rotary cutter 11 of this embodiment differs from the rotary cutter 9 in FIG. at regular intervals, i.e. 180
Two cutting blades 12.12 are attached with a degree interval between them. Note that the number of cutting blades 12 used in the rotary cutter is not limited to two, but may be three or more.

Next, the operation of the above device will be explained.

When image information for one page is recorded on the recording paper 2 by the recording head 5, the recording paper 2 is sent to the cutting device 7 by the platen roller 4. When the recording paper reaches the cutting position, a step motor (not shown) that drives the rotary cutter 11 starts rotating, and one cutting blade 1 of the rotary cutter 11 starts rotating.
The recording paper is cut at the contact point between the cutter 2 and the fixed cutter 8. After cutting, the rotary cutter 11 rotates from the position before starting rotation to a position rotated by 180 degrees, and then stops, and the facsimile machine moves on to the next operation.

FIG. 2 is a processing flow schematically showing the receiving side transmission speed control in the case of serial transmission according to an embodiment of the present invention. The flow of processing will be explained using this diagram.

The receiving facsimile machine is in standby state 21 while in phase A.
22 (call setup), phase B23 (pre-message procedure)
After that, phase C24 (message transmission) is entered. After receiving the image signal for one page, there is a control return signal (RTo) that indicates that the transmitting side will switch to a control signal, and a multi-page signal (MPS) that indicates that there is still a document to be sent without changing the parameters. will be sent. After receiving them (see step 25), the receiving side performs operations to cut the recording paper and set the recording paper position (see step 26). After the operation is completed, a message confirmation signal (MOF) is sent from the receiving side (see step 27), and the process moves to phase C.

Here, RTO, MPS, MOF are CCITT Recommendation T,
This is a control signal determined by No. 30. Furthermore, since the time for the MPS receiver to transmit MCI' is also determined by Recommendation T, 30, the shorter the time for the recording paper cutting and recording paper recording position setting operations, the smoother the communication.

Effects of the Invention As is clear from the above description, the present invention has a rotary cutter with a plurality of cutting blades (zero blades), thereby making it possible to complete -times of cutting process in 1/n rotation of the rotary blade. As a result, the cutter processing time can be shortened without increasing the rotation speed of the motor that drives the rotary cutter, so the transmission time of the facsimile machine can be shortened. This has the advantage that a relatively inexpensive and low speed motor can be used.

[Brief explanation of drawings]

FIG. 1 is a schematic cross-sectional view of the recording system of a facsimile machine showing an embodiment of the present invention, FIG. 2 is a schematic processing flow showing the transmission procedure of the same main part, and FIG. 3 is a conventional facsimile machine recording system. FIG. DESCRIPTION OF SYMBOLS 1... Recording paper roll, 2... Recording paper, 4... Platen roller, 5... Recording head, 7... Cutting device,
8... Fixed cutter, 9.11... Rotating cutter,
10.12... Cutting blade. Agent's name Patent attorney Satoshi Nakao Male and 1 other person figure

Claims (1)

[Claims] A plurality of rotary cutters arranged at intervals in the rotational direction, comprising means for continuously receiving image information over multiple pages and recording it on continuous recording paper, and a rotary cutter for cutting the recording paper, and a plurality of rotary cutters arranged at intervals in the rotation direction. A facsimile machine characterized by having a cutting blade.