JPS61267651A - Automatic paper seaming device for paper roll - Google Patents

Abstract

PURPOSE:To eliminate the use of both tabs and brushes preventing troubles from being made in paper seaming and succeeding process by providing a pair of paper seaming rollers which allows a new paper roll to be pressed against a running paper with pressure permitting them to be seamed together. CONSTITUTION:An acceleration belt 10 is installed between a take-up reel 11 and a new paper roll 6. Under this condition, when a paper seam preparation command is directed from an approaching sensor 7, a motor 12 is driven allowing the take-up reel to rotate to the direction B. This causes the acceleration belt 10 to start being winded allowing the new paper roll 6 to start being fed followed by the accelerated feeding. Then, when the feeding speed of the new paper roll discribed above is found to identical to that of a new paper roll 8 by a speed sensor 13, and when it is also detected by an approaching sensor 14 that the forward end of the new paper roll 6 passes through, a movable roller 17 for paper seaming is moved over to a stationary roller 18 for paper seaming allowing the running paper 8 together with the paste portion of the new paper roll (6) tip end to be held between the movable and the stationary rollers 17 and 18 where both of paper are pressed together and are seamed.

Description

[Detailed description of the invention] (Industrial application field) The present invention relates to an automatic web splicing device.

(Prior Art) A conventional automatic paper splicing device for web paper will be explained with reference to FIGS. 3 and 4. (01) is a paper splicing roller;
) is activated by the air cylinder (02), and when paper is spliced,
It descends to the position shown by the solid line in Figure 3, when the paper is not spliced.

It is designed to rise to the position indicated by the chain line. Further, each of the left and right pair of paper roll support arms (03) is rotatable about a shaft (04). Furthermore, the old roll paper (05) and the new roll paper (06) are mounted on two of the three arms of each roll paper support arm (03). In addition, a proximity sensor (roll paper diameter detection sensor) (0
7) is installed and constantly detects the diameter of the old web (05) by comparing it with the speed of the running paper (08). Then, when the diameter of the old web (05) reaches a preset value, a one-sheet splicing preparation command is sent.

Also, when this paper splicing preparation command is sent, the air cylinder (
02) is activated, the paper splicing arm (01) rotates around the pivot part and descends, bringing the running paper (08) close to the new web (06), and the running paper (08) approaches the new web (06). ), the photocell device (09) is activated and the paper joint arm (
01) stops, then the air cylinder (011) operates, and the new web accelerator (010) rotates around the pivot and descends, reaching the end of the shaft supporting the new web (06). The new web (06) is accelerated by contacting the attached accelerating roller (012) until its circumferential speed reaches the running speed of the running paper (08). On the other hand, a proximity sensor (paper splicing position detection sensor) is installed at the end of the shaft supporting the new roll paper (06).
(013) is installed, and it is detected that the new roll paper (06) is set at the splicing position. In addition, the proximity sensor (roll paper diameter detection sensor) (07) continues to detect the diameter of the old roll paper (05),
When it is detected that the diameter of 05) has become smaller than a preset value, the brush (014) is activated on the condition that a detection signal is sent from the proximity sensor (roll paper diameter detection sensor) (07). Then, the running paper (08) is pressed against the new web (06), and the new web (06) is bonded with the paste applied or the double-sided tape (015) attached to the tip of the new web (06). The tip is running paper (
The tip tab (016) is glued to the old roll paper (08).
) is cut, and then the knife (017
) is activated, the running paper (08) is cut, and then the paper splicing arm (01) and the new web accelerator (010) are raised to complete the paper splicing work.

(Problems to be Solved by the Invention) In recent years, there has been a trend in automatic paper splicing devices for two rolls of paper to increase the splicing speed and improve the efficiency of one work.

Accordingly, it is required to increase the strength of the tab (016) itself and increase the adhesive force of the tab (016), but in the conventional paper splicing device shown in FIGS. 3 and 4, the paper splicing speed is Due to the rise, the operating time of the brush (O12) becomes relatively short.

The adhesive strength of the tab (016) is insufficient, making paper splicing difficult. In addition, in recent years, paper quality 1 has become higher quality, but for paper quality 9 to become higher quality, it is necessary to increase the set tension of the running paper, and it is now necessary to increase the surface pressure of the brush (Ω14). Increasing the surface pressure of the brush (014) is preferable for joining the new and old paper webs (paper splicing), but on the other hand.

It becomes necessary to manage the surface pressure of the brush (014) over maintenance, and the frictional resistance increases as the surface pressure of the brush (014) increases, increasing the tension of the running paper (08). As a result, the fluctuation width of the tension becomes large, and the accompanying increase/decrease in frictional resistance causes wrinkles, causing printing failures in the primary process, such as the printing process, increasing the paper loss rate, and in the worst case, paper breakage. becomes the state of Also, when changing the width of the web,
It is necessary to change the surface pressure of the brush (014), which makes paper splicing work troublesome.

As mentioned above, in conventional paper splicing devices, it is strongly desired to increase the strength and adhesive force of the tab (016) itself due to an increase in paper running speed, etc., but on the other hand, it is difficult to It is required to be peeled off, and the tab (,
016), there were many operational problems, and an early fundamental solution was strongly desired.

(Means for Solving the Problems) The present invention addresses the above-mentioned problems, and includes an acceleration belt attached to and extending from the leading end of a new web, and a winding of the leading end side of the accelerating belt. A take-up reel that unwinds the new web and accelerates it to the same speed as the running paper that is being unwound from the old web, and presses the new web that has been accelerated to the same speed as the running paper against the running paper. It relates to an automatic paper splicing device for web paper, characterized by comprising a pair of paper splicing rollers for splicing new web paper and running paper, and its purpose is to eliminate the need for tabs and brushes. An object of the present invention is to provide an improved automatic paper splicing device for web paper that can eliminate the troubles occurring in the first paper splicing process and the next process.

The automatic web splicing device of the present invention has an accelerating belt attached to the leading end of a new web and extending therefrom, and winding up the leading end of the accelerating belt to feed out the new web and replace it with an old web. A take-up reel accelerates to the same speed as the running paper being unwound from the roll, and a new roll paper accelerated to the same speed as the running paper is pressed against the running paper to join the new roll paper and the running paper. It is equipped with a pair of paper splicing rollers, which eliminates the need for tabs and brushes, eliminates tension fluctuations, etc. when splicing two sheets, and eliminates the troubles that occur in the nine-sheet splicing process. Also, a pair of paper splicing rollers presses the new web onto the running paper (old web).

Since the new web and running paper are spliced, there is no sliding friction between each splicing roller and the two webs.

Wrinkles do not occur in the new web, and printing failures that occur in the primary process, such as the printing process, are prevented. Furthermore, since the paper splicing roller performs the paper splicing, no management is required.

(Example) Next, the automatic web splicing device of the present invention will be explained using an example shown in Fig. 1.2. (3) is the web support arm, (4) is the arm shaft, and (5) is the old The roll paper, (6) is the new roll paper, (7) is the proximity sensor (roll paper diameter detection sensor), (
8) is the running paper of the old roll paper (5), and (9) is the running paper of the new roll paper (6).
) running paper, (10) is acceleration bell), (11) is take-up reel, (12) is DC motor, (13) is speed sensor, (14) is proximity sensor, (15) is paste or double-sided tape , (17) is a moving roller for paper splicing,
(18) is a fixed roller for paper splicing, (19) (20)
is the guide roller, (21) and (22) are the knives, (2
3) is the paper roll support shaft, and (24) is the electromagnetic clutch.

(25) is an AC motor, and (26) is a reduction gear mechanism.

(Function) Next, the function of the automatic web splicing device shown in FIGS. 1 and 2 will be described. During normal printing operations,
Running paper (8) unwound from the roll of old paper (5)
is guided by a splicing fixed roller (18) and a guide roller (20) and sent toward the printing unit. In this state, one end of the acceleration belt (10) let out from the first take-up reel (11) is connected to the tip (29) of the new roll paper (6).
) (see Figure 2).

The tip (29) of the roll paper (6) is covered with reinforcing tape (30).
The support shaft (23) of the first roll paper support arm (3) is reinforced by
) is turned on, the rotation of the AC motor (25) is transmitted to the support shaft (23) of the new web (6) via the reduction gear mechanism (26), and the support shaft (23)
Then rotate the new web (6) in the direction of arrow A, and wrap the acceleration belt (10) around the new web (6) by a predetermined length 2.
Once it is wrapped, stop the AC motor (25). Thus, the accelerating belt (10) is passed between the nine take-up reel (11) and the new web (6). In addition, when a paper splicing preparation command is output from the proximity sensor (7) in this state, the DC motor (12) starts, the first take-up reel (11) rotates in the direction of arrow B, and the acceleration bell I-(10) begins to be wound up.

, the new web (6) begins to be unwound and is accelerated.

When the speed sensor (13) detects that the new web (6) has reached the same speed as the running paper (8) (old web (5)).

In addition, a proximity sensor (14) detects the passing of the tip of the new roll paper (6).
) detects the paper splicing moving roller (17) moves in the direction of the paper splicing fixed roller (18), and moves the running paper (8) (old roll paper ( 5)) and the tip paste (or double-sided tape) of the new roll paper (6) are sandwiched and pressed against each other to perform nine paper splices. In addition, in Figure 2 (
27) is an acceleration bell provided on the paper splicing moving roller (17))
(10) is the relief groove. Immediately after paper splicing is performed, the knife (
21) (22) is activated to cut off the excess paper ends of the old web (5) and the new web (6) before and after the first paper splicing position. What is the power to operate the knives (21) and (22)?

It is transmitted from the drive device of the paper splicing device. Also the same knife (
21) (22) returns to the chain line position after cutting is completed. In addition, instead of the tip paste (or double-sided tape) of the new roll paper (6) used for paper splicing, use the proximity sensor (14).
A paste spray nozzle (2
The paste of 8) may also be used.

(Effects of the Invention) As described above, the automatic paper splicing device for web paper of the present invention uses an acceleration belt attached to the leading end of a new web paper and extending therefrom, and winds up the leading end side of the accelerating belt. A take-up reel that unwinds a web and accelerates it until it reaches the same speed as the running paper that is being unwound from the old web, and a new web that has been accelerated to the same speed as the running paper and presses against the running paper and runs with the new web. It is equipped with a pair of paper splicing rollers that splice the paper, eliminating the need for tabs and brushes, eliminating tension fluctuations, etc. when splicing 9 sheets, and solving problems that occur during the paper splicing process. Also, a pair of paper splicing rollers presses the new web onto the running paper (old web).

Since the new web and running paper are spliced, there is no sliding friction between each splicing roller and the two webs.

Since wrinkles do not occur in the new web, printing problems that occur in the primary process, such as the printing process, can be prevented. Furthermore, since the paper splicing roller performs the paper splicing, there is an effect that management is unnecessary.

Although the present invention has been described above with reference to examples, it goes without saying that the present invention is not limited to these examples, and can be modified in various ways without departing from the spirit of the present invention. .

[Brief explanation of drawings]

FIG. 1 is a side view showing an embodiment of an automatic web splicing device according to the present invention, FIG. 2 is a perspective view showing a new web and a splicing roller, and FIG. 3 is a conventional automatic web splicing device. FIG. 4 is a side view showing the new paper roll, and FIG. 4 is a perspective view showing the leading end of the new web. (6)...New roll paper, (10)...Acceleration belt, (11)...Take-up reel, (17 ((18)
...Gitsugu Law sub-representative patent attorney Shigefumi Okamoto and two others Figure 1

Claims (1)

[Claims] An acceleration belt is attached to the leading end of the new web and extends from there, and by winding up the leading end of the acceleration belt, the new web is fed out until it reaches the same speed as the traveling paper being fed out from the old web. An accelerating take-up reel,
Automatic web paper characterized by comprising a pair of splicing rollers for press-contacting a new web accelerated to the same speed as the running paper to the running paper to splice the new web and the running paper. Relay device.