JPH0338186B2 - - Google Patents

Description

Detailed Description of the Invention The present invention involves folding and discharging base paper that is continuously supplied from a roll or the like using a pair of folding rollers, and cutting the folded and discharged base paper from the center. This invention relates to a constant sorting device for origami products such as tissue paper, which separates origami products and then sorts the origami products to be discharged into predetermined numbers.

Conventionally, the base paper that is continuously supplied from the roll is folded in a zigzag pattern by a pair of folding rollers and discharged to the output section, and then the zigzag folded base paper is cut and separated from the center using a cutter. When origami products are made into origami products and the origami products are divided into a predetermined number, a chain conveyor having claws arranged at predetermined intervals is used to divide the continuously conveyed origami into a predetermined number. That's what I was doing.

However, in this case, the distance between the nails is always a fixed pitch of the same width, so changes in humidity,
If the thickness of the paper changes slightly due to differences in paper quality, etc., there is a problem in that the number of origami products that are sorted into predetermined numbers increases or decreases.

The present invention solves these conventional problems by folding continuously supplied base paper in a zigzag manner using a pair of folding rollers and then discharging the paper, and then folding the base paper in the central part of the base paper folded by the rollers. In a zigzag folding machine, a predetermined number of folded sheets are placed on the carry-in side of the roller to be folded in a zigzag manner. A lifting part is provided to detect and lift the base paper upward to be fed to the roller, and the lifting part forms a protruding part of the paper every predetermined number of sheets folded in a zigzag manner, and the paper comes into contact with the protruding part of the paper and folds in a zigzag manner. A pressing member is provided to form a gap in the zigzag-shaped row of paper that is pressed against the folded paper and carried out to the carry-out unit, and a dividing member is provided in the gap so that it can move forward and backward, and the paper is carried out to the carry-out unit. This invention provides a constant sorting device for origami products, which is provided with a locking member that locks the front end of a zigzag-shaped paper row, and a product take-out member that faces the front end of the paper row and performs vacuum suction. be.

An embodiment of the device of the present invention will be described below based on the drawings.

In FIGS. 1 and 2, reference numeral 1 denotes a tissue base paper fed out from a roll (not shown). The longitudinal side portions of the base paper 1 are continuously folded in the longitudinal direction by folding plates (not shown). Thereafter, the folded base paper 1 is supplied to a pair of folding rollers 4, 4 via a roller 2, which serves as a base paper lifting member, and an idle roller 3, which are intermittently raised upward by a predetermined amount. ing.

The roller 2 is rotatably held by a shaft 6. This shaft 6 is installed in a flat plate 5, and the base of this flat plate 5 is supported by a frame (not shown) so as to be movable up and down. As shown in FIG. 2, a rod of a solenoid cylinder 7 provided above the plate 5 is connected to the free end of the plate 5 to normally hold the plate 5 in a fixed position. The base side of the solenoid cylinder 7 is supported by an upper frame of the zigzag machine body (not shown).

The number of rotations of the rollers 4, 4 is counted by a detector (not shown) and a counter connected to the detector. This detector includes roller 4,
It may be a proximity switch directly connected to 4,
Alternatively, it may be a slit plate interlocked with the rollers 4, 4, and a light emitting element and a photoelectric conversion element that cooperate with the slit plate, or a mechanical counter may be connected to the rollers 4, 4.
4, and the counter may output a signal every predetermined number of counts. The number of rotations of the rollers 4, 4 detected by such a detector corresponds to the number of folds of the base paper 1 folded thereby.

The counter connected to this detector and the solenoid cylinder 7 are arranged so that when the count number of the counter reaches a predetermined number, the solenoid cylinder 7
The rod is activated, and the flat plate 5 is slightly moved (about 5 mm).
While the base paper 1 that is moved upward and is pressed against the rollers 2 is folded once by the rollers 4, 4, the paper continues to maintain its position. Therefore, the base paper 1 is transferred to the roller 4,
Each time the base paper 1 is folded a predetermined number of times, it moves slightly (approximately 5 mm) upwards as the roller 2 moves upward, and in this state it is folded by the rollers 4, 4, so that one part of the base paper 1 is folded every predetermined number of times. The portion protrudes, is folded up, and is discharged to a discharge section 8 provided in front of the rollers 4, 4.

Reference numeral 9 shown in FIG. 1 is a cutter disposed approximately parallel to the axes of the rollers 4, 4, and this cutter 9 is used to cut the zigzag-folded base paper 1 discharged from the rollers 4, 4 to the discharge section 8. The center part of the folded base paper 1 is cut and separated by contact with the center part, and the two origami products 10, 10 are sequentially discharged in two columns toward the front end side of the discharge part 8.

Reference numeral 11 denotes a shaft disposed on the discharging side of the origami products 10, 10 of the discharging section 8, that is, on the upper front side of the discharging section 8. This shaft 11
As shown in Figures to Figures 4, origami products 10, 1
It is provided perpendicularly to the conveyance direction of the zigzag machine, and its both ends are rotatably supported by the frame of the zigzag machine body.

Furthermore, a pair of pressing members 12, 12, 13, and 13 are attached to the intermediate portion of the shaft 11, respectively, facing downward.

The pressing members 12, 12, 13, 13 are formed to have a length that presses the protruding portions 10a, 10a of the origami products 10, 10 in a direction opposite to the conveying direction thereof as the shaft 11 rotates. .

Reference numerals 14, 14 shown in FIGS. 1 to 3 are a pair of solenoid cylinders located directly below the shafts 11, 11 and arranged substantially parallel to the shafts 11. The base sides of the cylinders 14, 14 are each fixed to the frame of the zigzag folding machine main body, and plate-shaped dividing plates 15, 15 are attached to the free ends of the rods facing each other.

Note that the pressing members 12, 12, 13, 13 press the protruding portions 10a, 10a into the origami products 10, 10.
When the sensor is pressed in the opposite direction to the conveyance direction, a detector (not shown) different from the detector detects this and de-energizes the solenoid cylinders 14, 14, so that the dividing plates 15, 15 move into the cylinders. The origami products 10, 10 located at the leading edge of a predetermined number of origami products 10..., 10... on the discharge end side of the discharge section 8 and the second foremost part counted from the distal end side of the discharge section 8 are moved by a spring (not shown) inside. It is arranged to protrude into a gap formed between the protruding origami products 10, 10.

Reference numerals 16, 16 denote a pair of solenoid cylinders, which are arranged on the discharge end of the discharge section 8, substantially parallel to the cylinders 14, 14, and which carry a predetermined number of origami products 10..., 10... Solenoid cylinders 14, 14 so that they can be transported
are provided at a predetermined distance from each other. The base sides of the pair of solenoid cylinders 16, 16 are fixed to the frame of the zigzag folding machine, and the rod end sides of the solenoid cylinders 16, 16 are locking members for locking the plate-shaped origami products 10, 10. 17, 17 are attached.

Solenoid cylinder 16 is energized when solenoid cylinder 14 is de-energized.

As a result, the locking member 17 is retracted toward the solenoid cylinder 16 side.

18 is a belt conveyor that conveys a predetermined number of origami products 10. This belt conveyor 18
is located near the tip of the discharge section 8, and
It is arranged horizontally.

In FIG. 1, reference numerals 19, 19 are product take-out members for sucking and holding products by a vacuum, and are provided for conveying a predetermined number of origami products 10, 10, . . . to the belt conveyor 18. The product take-out members 19, 19 handle a predetermined number of origami products 10..., 1.
0... is clamped between the partition plate 14 of each solenoid cylinder 14, 16 and the locking member 17, and when the locking member 17 is released from the origami product 10, it is activated and a predetermined number of The origami products 10,... are sucked by the bagiyuum, and the sucked origami products 10,... are conveyed to the belt conveyor 18, and the bagiyums 19, 19 are rotated 90 degrees downward to release the suction force. Origami products 10 are placed on top.

In the apparatus of the present invention thus constructed, first, the base paper 1 is continuously supplied from a roll to a pair of folding rollers 4, 4 via the roller 2, and is folded one after another by the rollers 4, 4. At this time, a counter connected to the detector counts the number of folds of the base paper 1, and when the predetermined number of folds of the base paper 1 is completed, the solenoid cylinder 7 is activated to press the roller 2 and the base paper 1 against the roller 2. The folding portion moves upward, and the base paper 1 is supplied to the rollers 4, 4 in this state while the base paper 1 is folded once by the rollers 4, 4.

Therefore, the rollers 4, 4 fold up a predetermined number of base sheets 1 with a portion thereof protruding, and transport them to the forward discharge section 8. Then, the folded base paper 1 conveyed to the discharge section 8 is cut and separated from the center by a cutter 9, and two origami products 10..., 10 each having a predetermined number of partially protruding end portions 10a, 10a protrude. ... and is transported toward the discharge side end of the discharge section 8.

Next, the origami product 10 that is transported in this way
..., 10..., when the origami product 10 with the first protruding end 10a protruding reaches the ejection side end of the ejection section 8, the pair of solenoid cylinders 16, 16 are actuated to engage the tip of the rod. The first origami product 10 is locked by the locking members 17, 17.

By locking the leading end of the paper row discharged to the discharge section 8 with the locking member 17, the zigzag folded paper is compressed with a predetermined force and the posture of the paper row is maintained. It is held and aligned on the discharge section 8.

After that, two of the protruding ends 10a..., 10a...
The protruding ends 10a, 10a of the origami product 10 conveyed the second time are the pressing members 12, 12, 13, 1.
3, a gap is created between the origami products 10, 10, and a solenoid cylinder 14,
14 sorting members 15, 15 are inserted to ensure that a predetermined number of origami products 10 are sorted.

The paper folded in a zigzag pattern like this is the dividing material 15.
Since the parts are separated while being sandwiched between the two and the locking member 17, the parts are separated while maintaining the alignment position on the discharge part 8.

Next, a pair of solenoid cylinders 16, 16
is activated, the locking members 17, 17 are retracted, and one section, that is, a predetermined number of origami products 10..., 10
... is sucked in by the product take-out members 19, 19 and carried to the top of the belt conveyor 18, and the product take-out members 19, 19 are rotated 90 degrees downward to release the suction, as shown in Fig. 2. It is placed on the belt conveyor 18.

During transfer to the belt conveyor 18, the paper folded in a zigzag manner causes so-called spring back due to the elastic force of the paper, and the sorted state is disturbed. Since the material is sucked by the material, the material is transferred to the belt conveyor 18 in a short time without any disturbance.

In this way, a predetermined number of origami products 10 placed one after another on the belt conveyor 18 are transported to the next packaging location or the like (not shown).

Therefore, even if the thickness of the origami products 10 changes slightly due to changes in humidity, differences in paper quality, etc., the number of origami products 10, . . . in one category will not change accordingly.

In this embodiment, the rollers 2 are used as a means for moving the continuously supplied base paper 1 upward, but the invention is not necessarily limited to this. 1 is folded, it may be counted by a counter connected to a detector, and then a hook or the like may be activated to lift the base paper upward.
In short, any material that can supply the base paper 1 to the rollers 4 with a predetermined number of origami products 10 protruding from the discharge section 8 may be used.

Although three detectors are used in the first embodiment, only the detector is used to measure the rotational speed of the rollers 4, 4, and the detector, shaft 11, and solenoid cylinders 14, 16 are operated as described above. As in the above embodiment, the shaft 11,
The solenoid cylinders 14 and 16 may also be operated.

A, B, C, and D in Fig. 5 are the second
An example is shown. Note that the same reference numerals are used for the same parts as those described in the first embodiment.

In FIG. 5A, the pressing members 20 and 21 are moved in parallel in a direction opposite to the conveying direction of the origami products 10, and are configured to press the protruding end portion 10a of the origami products 10. That is, among the origami products 10..., 10... being conveyed, the protruding ends 10
Pressing members 20 and 21 for pressing the parts a and 10a are integrally attached to the shaft 24 via attachment members 22 and 23. Both ends of the shaft 24 are rotatably supported by sliders 25 (one not shown), and the sliders 25 are supported by a receiving part 27 (one of which is not shown) fixed to the frame A of the zigzag machine main body 26 as shown in FIG. one is slidably attached to the other (not shown).

A rack 25a is formed below the middle of the slider 25 on the left side of the figure, and a shaft 28 rotatably provided below the rack of the slider 25.
It is formed so as to mesh with the pinion 29 of. A transmission lever 3 is attached to one end of the shaft 28.
0 is fixed integrally, and its transmission lever 30
A long hole 30a is bored in the longitudinal direction. The rod end of a solenoid cylinder 31 is fixed to the elongated hole 30a so that its mounting position can be adjusted. Further, the base side of the solenoid cylinder 31 is pivotally connected to a part of the frame (not shown) of the zigzag folding machine main body 26.

32 is a sliding rod whose base is integrally attached to the shaft 24, and a follower 32a provided on the free end side.
is adapted to slide within a cam groove 33a formed on the side of the cam plate 33 shown in FIGS. 5A and 5C. As shown in FIG. 5D, the cam groove 33a has a parallel portion 33c formed parallel to the conveyance direction of the origami product 10, and an upwardly inclined slope portion 33d connected to the parallel portion 33c.

Therefore, in the case of this embodiment, the transmission lever 30 rotates due to the operation of the solenoid cylinder 31, the shaft 28 rotates, and this rotation is transmitted to the rack 25a via the pinion 29, so that the slider 25 is longitudinally displaced. At this time, the follower 32a of the sliding rod 32 attached to the shaft 24 moves along the cam groove 33a.

Since this embodiment is configured as described above, the pressing members 20 and 21 are moved in parallel in the direction opposite to the conveyance direction of the origami products 9 by the operation of the solenoid cylinder 31, and the origami products 10 are moved in parallel. Since the protruding end portion 10a is pressed, the predetermined number of origami products 10 can be sorted more reliably than the pressing members 12, 12, 13, 13 of the embodiment.

The various solenoid cylinders used in the first and second embodiments are not limited to only solenoid cylinders as long as they are configured to be activated by a signal from a detector; for example, oil cylinders, etc. May be used.

As is clear from the above explanation, the apparatus of the present invention uses a lifting member to project a predetermined number of sheets of paper from a row of paper products, and a pressing member to press the projecting portions.
A space is created, a separating material is inserted between the two, and the separated rows of paper products are held between the separating material and the locking member, so the rows of paper products can be sorted without disturbing them. . The paper products thus sorted are then sucked up by the product take-out member and transferred to the belt conveyor, so the lined and sorted paper products can be transferred in a short time without disturbing their posture. . In this way, the paper products are held between the sorting material and the locking member, and the paper products are transferred by suction by the product removal member, so even paper folded in a zigzag manner can be sorted while maintaining its posture without causing spring back. In addition, the transfer can be carried out in a short time, and the next process of bagging can be completely automated, and the transfer time can be shortened and the throughput per unit time can be improved. Moreover, this makes it possible to reliably obtain a predetermined number of origami products even if the thickness of the base paper changes due to changes in humidity, differences in paper quality, etc.

[Brief explanation of drawings]

FIG. 1 is a plan view of the first embodiment of the device of the present invention without the pressing member, and FIG. 2 is a plan view of the first embodiment of the device of the present invention.
FIG. 3 is a front view of FIG. 2, FIG. 4 is a side view showing the state of contact between the pressing member and origami product in FIG. 3, and FIG. 5A is a diagram of FIG. FIG. 5B is an enlarged vertical cross-sectional view showing the fitted state of the slider and the receiving part of FIG. 5A, and FIGS. FIG. 5 is a longitudinal cross-sectional view showing the fitted state of the sliding member and the inducer member in FIG. 5A; 1...Base paper, 2...Roller (lifting member), 4,
4...Folding roller, 8...Discharge section, 9...
Cutter, 10... Origami product, 12, 13, 2
1, 22...pressing member, 26...zigzag folding machine.

Claims (1)

[Claims] 1 A cutter that folds continuously supplied base paper in a zigzag manner using a pair of folding rollers and discharges the same, and arranges the center portion of the base paper folded by the rollers approximately parallel to the axis of the rollers. In a zigzag folding machine that continuously cuts and separates paper sheets and transports them to a delivery section, a predetermined number of folded sheets is detected on the input side of the roller that folds the paper in a zigzag manner, and the paper sheet to be fed to the roller is lifted upward. A lifting part is provided for holding the paper, and the lifting part forms a protruding part of the paper every predetermined number of sheets folded in a zigzag manner, and the paper comes into contact with the protruding part of the paper, presses the zigzag folded paper, and carries it out to the carrying out part. A pressing member is provided to form a gap in the zigzag-shaped paper rows that have been carried out, and a dividing member is provided in the gap so that it can move forward and backward. 1. A constant sorting device for origami products, characterized in that a locking member is provided to stop the paper row, and a product take-out member facing the front end of the paper row and vacuum-chucking the product is provided.