JPS59203042A - Rolled paper feeder - Google Patents

Abstract

PURPOSE:To feed and cut rolled paper, which is to be fed, without allowing the paper to touch another set of rolled paper that is not to be fed by installing an air nozzle, which ejects air, at a junction of middle and lower baffles. CONSTITUTION:Air is ejected in parallel with a lower baffle 9 into a common baffle section 11 via a pipe 17, which is connected to the discharge side of a compressor 16, a joint 15, a nozzle 14, and an opening 10b, thereby forming an air curtain 18. Next, when a feed roll 4 is driven after in rotation, paper from the first roll 2, which is sandwiched between the feed roll 4 and a pinch roll 6, passes through a space between an upper baffle 8 and a middle baffle 10 and reaches a common baffle section 11. Then, it is fed as it is pressed against the tip portion of the upper baffle 8 by the air curtain 18 formed by the nozzle 14. When the predetermined length of the paper has been fed, a rotary blade 13 is rotated in accordance with a signal from a control device in order to cut the paper from the first roll 2.

Description

[Detailed description of the invention] ・“For '1 above Satomoto Invention G, electrophotographic copying machine, Roaxis S 14 etc. 0
Multiple rolls of paper in the device q] Any one roll of paper?
This relates to a roll paper feeding device G that selectively feeds paper by switching.

A conventional roll paper feeding device of this type is constructed as shown in FIG.

That is, the fuselage frame 11 has roll paper of different widths 2.3.
are rotatably supported, and feed rolls 4.5 are disposed above each paper roll 2.3, and the feed rolls 1.5G are in contact with each other.
/l/ 5.7 is a pivot 21t, upper and lower pairs of feed roll 4, pinch roll 6 and feed roll 5.8
Also, the upper panfle 8 and the lower baffle 9 are arranged adjacent to the pinch roll 7.
A middle baffle 1 ( ) is arranged at a predetermined distance from this four-sided pan full 8.9, and the roll paper 2.3 is placed next to it.'Jt feed roll 1.5
Pinch roll 6.7 and feed roll 4.5's rotation G with pinch roll 6.7.
and middle baffle 10 questions (r between lower baffle 9 and middle baffle 10).

'Er= , upper baffle 8 and lower pan full 9σ
) A fixed blade 12 and a rotary blade 1 are disposed adjacent to the tip, and either one of the roll paper 2.3 sandwiched between the blades 12 and 13 is rotated by the rotation of the rotary blade 13. "It's ready to cut.

In the conventional σ roll paper picture paper table 100 shown in FIG. The length of 3 is slightly longer than the straight line distance, so (1) the result is, for example,
10th - When paper 2 is selected and fed, the amber pan full 8 that is not facing the middle baffle IO Q E
Shared baffle part 11 sandwiched with the lower pan full 9α
, the 20th paper 3 is pulled in the supply direction due to the gentle contact (as the 10th paper 2 moves), and the 20th paper 2
- A so-called double cut is performed in which the round paper 3 of the round paper 3 is also cut at the same time.

However, when a double cut is performed, the power required to rotate the rotary blade 13 doubles, the motor for driving the rotary blade 13 becomes larger and costs increase, and the power consumption also increases. In comparison, the life of the cutting edge is significantly shortened, and moreover, paper waste is generated from the roll paper on the side that does not require a paper feeder, and this removal work is required. The purpose of improving the rolled paper introduction device is to provide a simple roll paper introduction device with a structure (6) that prevents double cuts.

In the configuration of the invention, an air nozzle is disposed at the merging portion of each baffle to eject air in the paper feeding direction from the merging portion of the baffles that guide each roll paper, respectively. It is possible to feed and cut the roll paper on the side to be fed without contacting the roll paper on the side to not be fed.

Examples 21. This invention q)
- An example will be explained.

At the tip 8 and flow part tOa, a hole ta b extends in the width direction,
The tip of the nozzle 14, which is pierced at regular intervals and in large numbers, is oriented in the direction of the three sheets of paper, and the tip of the nozzle 14 is oriented in the direction of the paper.
Attachment 11. ing.

The nozzles 14 are arranged parallel to each other, and the base end 14h of each nozzle 140 is connected to the joint 1 of N11il.
One end of the pipe 17 is connected to the discharge side, and the other end of the pipe 17 is connected to the front end surface 15α of the joint 15. There are two built-in fuselage frames.

The full 14 is arranged substantially parallel to the lower baffle 9.

FIG. 2 to FIG. 3 GI: Since the illustrated embodiment is constructed as described above, when the side light beam 10-2 is selected, the control device built in the fuselage frame 1・The compressor 16 and a motor (not shown) operate at the same time, and the discharge side of the compressor 16 is connected to the vibrator 17, the joint I5, the nozzle 14, and the hole 10#Y in the common pan full part 11, parallel to the lower pan full 9. An air curtain 185 is created in the shared panful portion 11.

In addition, a motor (not shown) rotates and the motor is rotated.
The feed ho-/l/ 4 is rotationally driven, and the 10th roll paper 2, which is sandwiched between the feed roll 4 and the pinch roll 6, passes between the upper panfull 8 and the middle baffle 10, and is passed through the shared panfull portion. The paper is fed by an air curtain I8 of the nozzle 14 so as to be roughly pressed against the tip 8α of the upper baffle 8.

After a certain amount of paper has been fed, the rotary blade 13 is rotated based on the signal from the built-in control device, and the 10th paper is fed.
- The paper 2 is cut.

In this way, the 10th sheet 2 is introduced without contacting the 20th sheet 3, so the frictional resistance caused by the contact causes the 20th sheet 3 to be pulled in the paper feeding direction G. It is possible to prevent a double cut in which the 10th line paper 2 and the 20th line paper 3 are cut at the same time without being cut out.

In the embodiment marked mJ, the middle baffle 100 confluence section 1. A large number of holes to b yi were drilled in Oa, and a nozzle 14 was attached to each hole G, and it continued to eject while paper was being fed. 14 nozzles each having one hole may be provided, or the ejection may be performed intermittently during paper feeding.

Effects of the Invention Since the present invention is configured as described above, the supplied roll paper is 3.The roll paper that is not fed is fed without contacting it, so the roll paper that is not fed is
The paper is not pulled out in the feeding direction due to the frictional resistance caused by the contact, and it is possible to prevent a double cut in which the fed roll paper and the unfed roll paper are cut at the same time.

Since the double cut of the octopus can be effectively prevented, the motor for driving the cutter can be made smaller and lighter, power consumption can be reduced, and the life of the cutter can be extended.

Since it is possible to prevent the occurrence of paper waste (σ) caused by rough double cuts, it is possible to prevent malfunctions of the roll paper feeding device due to accumulation of paper waste. You can do a simple G.

Furthermore, since paper jams can be reliably suppressed, the operating rate can be increased.

[Brief explanation of drawings]

Figure 1 is a vertical side view of a conventional roll paper feeder σ);
The figures are a longitudinal sectional side view and an enlarged perspective view of the main part of FIG. 1...In-flight frame, 2.3...Roll paper, 4.5
... Feed roll, 6.7 ... Pinch roll, 8
...Upper baffle, 9...Lower baffle, 10
...Middle baffle, 11°゛s baffle part, 1
2... Fixed blade, 13... Rotating blade, 14... Nozzle, 15... Joint, 16... Compressor, 17...
...Vibe, 18...Air curtain.

Claims (1)

[Claims] 7 Features and 1- The nozzle nozzle 11 is arranged at the confluence of each baffle in the roll paper feeder 0 which switches and selects any one of the plurality of roll papers for @paper waste.
Roll paper feeding device.