JPS5944906B2 - rotating roller - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a rotating roller used in a gluing machine or the like.

Gluing machines have long existed in which a part of the outer periphery of a gluing roller is positioned inside a gluing tank, and a cloth or wallpaper is passed between the gluing roller and a pressure roller installed above it to apply glue to one side of the gluing roller. .

In such a conventional gluing machine, the sheet (cloth, wallpaper) after gluing passes between the gluing roller and the presser roller.
Since the sheet length is measured before cutting, it takes time and effort to cut the sheet, and measurement errors may occur, resulting in loss. It was difficult to form sheets.

In view of the above-mentioned points, the present invention provides a rotating roller capable of detecting the length of a sheet fed out or pulled out.

As shown in FIGS. 2 and 3, an insertion hole 2 is formed in each of the pair of brackets 1, 1 arranged in parallel, and the center of the fixed wheels 3, 3 is placed in the center of each insertion hole 2. The end face of the boss 4 of the wheel 3 is fixed to the bracket 1 so as to match.

A bearing 5 is fitted on the outer periphery of the boss 4 of the fixed wheel 3, and an inner race 5' of the bearing 5 is fixed to the boss 4. An end of the cylindrical roller main body 6 is fitted on the outer periphery of the bearing 5 to form the bearing 5. is fixed to the outer race 5'. With this configuration, the roller main body 6 is rotatably supported by the bracket. A deceleration motor T is fixed to the end face of one of the fixed wheels 3, and the rotation of a rotating shaft 8 of this motor T is transmitted to the roller body 6 via an overdrive mechanism 10.

The overdrive mechanism 10 has a planetary gear 13 attached between a sun gear 11 fixed to the rotating shaft 8 of the motor T and an internal gear 12 fixed to the inner periphery of the roller body 6, and is free with respect to the rotating shaft 8. Ratchet wheel 14 fitted to
The cylindrical body 15 which rotatably supports the planetary gear 13 and is fitted around the outer periphery of the ratchet wheel 14 is connected to the motor T.
It is fixed to the case 7' of the wheel 14, and an engager IT made of a roller or the like is installed in the cam groove 16 formed on the outer periphery of the wheel 14.
has been established.

The cam groove 16 extends long in the circumferential direction, and the depth of the groove gradually increases in the direction of rotation of the rotating shaft 8 of the motor 7 (in the direction of the arrow in FIG. 4).

Note that the cam groove 16 may be formed on the inner circumference of the cylindrical body 15 in some cases.

A ring 20 is fixed to the inner circumference of the roller body 6, and a large number of protrusions 21 are provided on the inner circumference of the ring 20 at equal intervals in the circumferential direction. It is located inside.

Although a micro switch, a Hall element, etc. can be employed as the sensor 22, a micro switch is shown here.

The micro switch 22 is attached to the fixed bracket 3, and the tip of the detection piece 23 is in contact with the inner periphery of the ring 20. The signal from this micro switch 22 is
When the required number of pulses is counted, the deceleration motor 7 is stopped by a signal from the counting means. The electromagnetic brake 30 is activated. The electromagnetic brake 30 includes an electromagnetic coil 3
1, and when this coil 31 is energized, a pair of swingably provided L-shaped plates 32 swing around a pin 33,
An arcuate brake plate 34 passed between the ends of the L-shaped plate 32 is enlarged in diameter so that its outer periphery comes into pressure contact with the inner periphery of the roller body 6.

Note that this electromagnetic brake 30 is attached to the fixed wheel 3.

The rotating roller shown in the embodiment has the above-described structure, and FIG. 1 shows an example of use in which the rotating roller A is provided on the sizing roller 41 of the sizing machine 40.

Now, in the gluing machine 40 shown in FIG. 1, for example, wallpaper S is passed between the gluing roller 41 and the rotating roller A, and in this state, the deceleration motor 7 located inside the roller body 6 is operated to rotate the rotating shaft 8. When rotated in the direction of the arrow in FIG. 4, the roller main body 6 is rotated in the direction of the arrow in FIG. 1 via the overdrive mechanism 10. That is, when the rotating shaft 8 rotates in the direction of the arrow in FIG. 4, the planetary gear 13 revolves around the rotating shaft 8 in the same direction as the rotating shaft 8.
4 also rotates in the same direction as shown by the arrow in FIG. Therefore, the shallow portion of the cam groove 16 corresponds to the engaging element 17, and the ratchet wheel 14 is fixed. Since the planetary gear 13 is supported by this fixed ratchet wheel 14,
The planetary gear 13 rotates in the opposite direction to the sun gear 11,
The internal gear 12 that meshes with this planetary gear 13 is the planetary gear 1
3, the roller main body 6 rotates, and the wallpaper S is fed out at a speed corresponding to the rotational speed of the main body 6. Since a ring 20 is fixed to the inner periphery of the roller main body 6 when the wallpaper S is fed out, the switch 22 operates together with the ring 20, and the number of pulses by the signal from the switch 22 reaches the set value. When you reach
Since the deceleration motor 6 stops and the electromagnetic brake 30 operates at the same time, the roller body 6 stops.

In this way, the roller body 6 rotates at a constant speed until the number of pulses emitted from the switch 22 reaches the set value, so the wallpaper is accurately rotated by the length corresponding to the number of rotations of the roller body 6. It is rolled out. When the wallpaper is fed out by the deceleration motor 7 as described above, if you hold the tip of the wallpaper S that has been fed out and pull it out at a speed faster than the speed at which it is fed out by the deceleration motor 7, the speed will correspond to the speed at which the wallpaper is drawn out. The roller body 6 rotates at the same speed as the ratchet wheel 14 that supports the planetary gear 13.
rotates in the same direction as the main body 6, the deep part of the cam groove 16 faces the position of the engaging element 17, and the roller main body 6 can be rotated regardless of the drive of the deceleration motor 7.

When manually pulling out wallpaper, the deceleration motor 7
The micro switch 22 operates in the same way as when the wallpaper is fed out by
When the amount of withdrawal reaches the required length, the electromagnetic brake 30
is activated, and the roller body 6 stops.

In the case of the example, the electromagnetic brake was activated when the signal from the sensor that detects protrusions was counted by the counting means and reached the set value. It is also possible to digitally display the wallpaper unrolling length, and the wallpaper can be pulled out to the required length by stopping the deceleration motor while watching this display value, or by manually stopping the unrolling, so a brake device may be omitted. There is also.

Further, although the rotation of the rotating shaft 8 of the deceleration motor 7 is transmitted to the roller body 6 via the overdrive mechanism 10, the ratchet wheel mechanism is omitted and the planetary gear is rotatably supported by the motor case. Since it is also possible to rotate the main body, the above-mentioned overdrive mechanism may be omitted in some cases.

In some cases, the deceleration motor may be omitted. The use of the rotating roller according to the present invention is not limited to pasting machines, but can be used in other machines and appliances.

As described above, according to the present invention, a ring is fixed to the inner periphery of the roller body, a sensor is provided for detecting the protrusions arranged at equal intervals formed on the inner periphery of the ring, and the signal from the sensor is counted by the counting means. Since the counting was performed by , it is possible to accurately measure the length of the sheet of wallpaper or the like brought into contact with the outer periphery of the roller body, or the length of the sheet to be drawn out. Since the length of the glued sheet can be accurately determined, the glued sheet can be accurately cut to a set length, and this can greatly improve the efficiency of sheet cutting work.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a gluing machine using a rotating roller according to the present invention, Fig. 2 is a longitudinal sectional front view showing an embodiment of the above rotating roller, with a portion omitted, and Fig. 3 is an exploded view of the same above. Perspective view,
FIG. 4 is a sectional view taken along the - line in FIG. 2. 6...Roller body, 20...Ring,
21...Protrusion, 22...Sensor.

Claims (1)

[Claims] 1. A ring is fixed to the inner periphery of a cylindrical roller body that is rotatably provided with both ends supported, and a plurality of protrusions are formed at equal intervals in the circumferential direction on the inner periphery of the ring, and the roller body is A rotating roller characterized in that a sensor for detecting the protrusion is provided inside the roller, and the detection signal from the sensor is counted by a counting means.