JPH072385B2 - Slot device for forming multi-stage ball boxes - Google Patents

Description

TECHNICAL FIELD The present invention relates to a slotter device during a corrugated board box molding process,
In particular, by controlling the elevator drive mechanism of the slotter knife that forms cut grooves at the leading end and the trailing end in the transport direction of corrugated paper that is transported horizontally, the length of the corrugated paper is limited. The present invention relates to a device capable of forming desired cut grooves at the front end and the rear end of corrugated paper.

2. Description of the Related Art Generally, a corrugated board box forming process includes a paper feeding process for supplying corrugated paperboard cut into a predetermined shape, a printing process for performing necessary printing on a predetermined portion of the corrugated paperboard, a predetermined notch groove and a folding process. The process of forming the curved portion, the gluing process of connecting the body parts, the folding and gluing process of the paper after gluing, the process of stacking a predetermined number of the obtained products, and the stacked products The main work process is the process of sending the product to the binding machine and the process of binding the product that has been sent in.

FIG. 4 shows a corrugated paper 1 having a predetermined length L and width W, and FIG. 5 shows a state in which the notch grooves 2, 2 ... Are formed at predetermined portions of the corrugated paper 1. is there. Reference numeral 3 is a joint flap formed by the cut groove 2 for gluing.

In order to form the cut grooves 2, 2, ... In the slotter conveyance path formed by the slotter upper pieces 4, 5, the slotter lower pieces 6, 7, the creaser pieces 8, 9 and the feed roller 10 as shown in FIG. Insert the corrugated cardboard paper 1 in the direction of arrow A, and rotate the slotter pieces 4, 5, 6, 7 to attach the slotter knives 11 and 12 attached to the peripheries of the slotter upper pieces 4, 5 to the corrugated cardboard paper 1
When pressed into contact with each other, the cut grooves 2, 2 ... Are formed. That is, the slotter knife 11 forms the cut grooves 2, 2 ...
The cut grooves 2, 2 ... Are formed at the rear end portion in the transport direction. The creaser pieces 6 and 7 form ruled lines 13 in the lengthwise direction that form the bent portions.

Therefore, the lengths L1 and L3 of the cut grooves 2, 2 shown in FIG. 5 are determined by the dimensions of the slotter knives 11, 12, and the maximum dimension thereof is the slotter to which the slotter knives 11, 12 are mounted. It is determined by the circumferential dimensions of the upper pieces 4 and 5. Further, the dimension of the interval L2 in the length direction of the cut grooves 2, 2 ... Is determined by the lengths L1 and L3 of the cut grooves 2, 2 ... And exceeds the circumferential dimension of the slotter upper pieces 4, 5. I can't. This is because the slotter knife 11 is attached to the peripheral edge of the slotter upper piece 4, so that the slot groove is inevitably pressed against the corrugated cardboard sheet 1 when the slotter upper pieces 4 and 5 make one rotation.

The lengthwise interval L2 between the cut grooves 2, 2 ... Determines the height dimension of the body of the corrugated cardboard box B formed as shown in FIG. 6, and in the conventional slotter device as described above. However, the height dimension L2 of the body portion can be formed only within the range of the circumferential dimension of the slotter upper pieces 4, 5. Therefore, in order to manufacture a corrugated cardboard box in which the height L2 of the body is increased, it is necessary to use a slotter device having the slotter upper pieces 4 and 5 having a circumferential dimension matching the dimension, and the same slotter is used. It was impossible to use the upper pieces 4 and 5 to arbitrarily form the height dimension L2 of the body portion beyond the circumferential dimension thereof.

On the other hand, cardboard boxes are manufactured in a standardized shape, but the height dimension L2 of the body varies depending on the application and type of the cardboard box, and various sizes are manufactured according to demand. There is a need. Therefore, if the height dimension L2 of the body exceeds the circumferential dimension of the slotter upper pieces 4, 5 of the slotter device to be used, a large-sized slotter apparatus with a larger circumferential dimension of the slotter upper pieces 4, 5 is separately provided. It is necessary to prepare such as equipment cost will be incurred and the cost will be high,
In addition, there is a drawback in that a very troublesome work is required in the line of the corrugated board molding process in which the slotter device to be used must be changed each time.

Therefore, the present invention solves the above-mentioned drawbacks of the conventional slotter device, and eliminates the circumferential dimension of the slotter upper piece and the dimension of the slotter knife. It is intended to provide a slotter device capable of forming a notch groove at a desired position regardless of the length of corrugated cardboard paper by arbitrarily setting the height dimension of the body part in the above). is there.

Means for Solving the Problems In order to achieve the above-mentioned object, the present invention has a disk shape provided with a first slotter knife for forming a first cut groove at a predetermined portion of a corrugated cardboard sheet conveyed in a horizontal direction. An upper piece is fixed and is arranged in parallel to a first appa lotter shaft arranged above the corrugated paperboard conveying path and a position separated from the first appa lotter shaft by a predetermined length along the corrugated paper board conveying direction. The second upper slotter shaft to which the disk-shaped upper piece having the second slotter knife for forming the second cut groove at the predetermined position of the corrugated paper is fixed, and is located below the corrugated paper conveyance path. And a disc-shaped lower piece disposed at a position corresponding to each of the first and second upslotter shafts, and the stepped bow conveyed by the first and second slotter knives. In a slotter device for forming a corrugated board box in which cut grooves are formed at the leading end and the trailing end in the transport direction of the sheet, the first and second upslotter shafts can be independently moved up and down. And a plurality of sensors for detecting the moving state of the corrugated paperboard are provided in the corrugated paperboard conveyance path, and the first and second upslotters are provided based on the signals detected by the respective sensors. The shaft drive mechanism is independently controlled to form a slot machine for corrugated cardboard boxes that forms a notch with a preset length at the leading and trailing edges of the corrugated cardboard to be transported. There is.

According to such a slotter device, a sensor provided in the corrugated paperboard conveyance path detects the movement state of the corrugated paperboard, and when it is detected that the corrugated paperboard has reached a predetermined position on the conveyance path, The second upslotter shaft and the second upslotter shaft independently move up and down, and the corrugated cardboard paper is produced based on the pressure contact action between the first and second upslotter knives attached to the peripheral edge of the disc-shaped upper piece and the disc-shaped lower piece. A cut groove having a predetermined length is formed at the front end and the rear end of the.

Therefore, by presetting the steady state and the skipped state of the first and second upslotter shafts, either one of the upslotter shafts skips upward and feeds the corrugated cardboard paper to form the notch formation of the corrugated cardboard paper. When this position is reached, the operation mode is obtained in which the Appros lotter shaft descends and an incision of a predetermined length is formed by the Appros lotter knife fixed to the peripheral edge of the upper piece. It is possible to arbitrarily set the interval in the length direction of the cut grooves formed at the front end portion and the rear end portion of the.

EXAMPLES The present invention will be described below based on an example shown in the drawings.
In the slotter device generally shown in FIG.
Reference numerals 4 and 15 and 15 are vertically slidable bearings, on which the first and second up-slotter shafts 16 and 17 arranged at appropriate intervals are arranged. There is. The first and second upslotter shafts 16 and 17 are used to convey the corrugated paper 1 in the conveying direction (A).
Are arranged parallel to each other and separated by a predetermined length.
Disc-shaped upper pieces 18 and 19 are fixed to predetermined positions of the first and second Appalos-rodter shafts 16 and 17, respectively, and the first upper-plotter knife 20 is provided on the periphery of the disc-shaped upper pieces 18 and 19.
And a second Applots knife 21 is attached.

Brackets 22, 22, 23, protruding above the bearings 14, 14, 15, 15
The cam 23 is provided with cam insertion holes 24, 24, 25, 25, and eccentric cams 26, 26, 27, 27 are fitted therein. A first drive connecting shaft 28 is rotatably inserted between the eccentric cams 26, 26, while a second drive connecting shaft 29 is rotatably inserted between the eccentric cams 27, 27. . Joints 30 and 30 are fixed to the first drive connecting shaft 28.
While the first drive air cylinders 31, 31 are connected to
Joints 32, 32 are fixed to the second drive connecting shaft 29, and the second drive air cylinders 33, 33 are connected thereto.

The first drive air cylinders 31, 31 and the second drive air cylinders 3 constituting the lifting drive mechanism for the first and third up-pass lotter shafts 16 and 17, respectively.
Fixing brackets 34, 34 are interposed between 3, 33, and axially support the ends of the respective air cylinders. 35,35,35,35
Is a balancing air cylinder.

The expansion and contraction operation of the first drive air cylinders 31, 31 is the first
While being transmitted to the drive connecting shaft 28 to rotate it, the expansion and contraction operation of the second drive air cylinders 33, 33 is transmitted to the second drive connecting shaft 29 to rotate it. Therefore, the bearings 14, 14 and the bearings 15, 15 move up and down by the action of the eccentric cams 26, 26 and the eccentric cams 27, 27 attached to the ends of the drive connecting shafts 28, 29, so that the bearings 14, 14 and A first upslotter shaft 16 and a second upslotter shaft 17 pivotally supported by the bearings 15 and 15 move up and down. In addition, the above-mentioned first and second up-pass lotter shafts 16 and
Up and down movements with 17 can be performed independently.

Below the conveyance path of the corrugated cardboard sheet 1 conveyed in the direction of arrow A, although not shown in FIG. 1, it corresponds to the above-mentioned first and second upslotter shafts 16 and 17, respectively, as will be described later in detail. A disk-shaped lower piece is arranged at a position where Further, a plurality of sensors (not shown) for detecting passage of the corrugated paperboard 1 are provided on the conveyance path of the corrugated paperboard 1. Based on the signals sensed by these sensors, each of the first drive units is driven. The air presetting cylinders 31 and 31 and the second preset pneumatic cylinders 33 and 33 are provided with a digital preset counter for issuing a driving signal.

The first and second up-slotter shafts 16 and 17, the disc-shaped lower piece, and a feed roller for corrugated paper 1 described later are configured to rotate in conjunction with a drive gear. Instead of this drive gear, a chain drive, a timing belt drive or the like may be used.

Further, a running register is provided on each of the first and second upslotter shafts 16 and 17, and each upslotter shaft is provided to form a cut groove at a predetermined position.
16 and 17 rotate independently in the circumferential direction to position the first and second appa lotter knives 20 and 21. Therefore, the two front and rear upslotter shafts 16 and 17 arranged along the transportation direction of the corrugated paper 1 can move up and down, and the rotation power is transmitted from the drive gear by the universal joint to the up and down movement. Has become. During operation, the peripheral velocities of all the pieces that make up the slotter device and the feed roller are synchronized, and the first and second upslotter shafts 1
Only 6,17 is not the one that rotates or shifts independently.

The operation of the slotter device for forming a corrugated board box according to the present invention having such a configuration is as follows. First, prior to the start of work, the cutting dimension is preset in the digital preset counter 42 shown in FIG. 2 (A). Then, when the corrugated paper 1 is conveyed in the direction of arrow A,
The first sensor 36 senses the passage of the leading edge of the corrugated paper 1 and at the same time, the digital preset counter 42 starts counting by a signal emitted from the second sensor 37.
While the above counting continues, the disc-shaped upper piece 18 as shown in FIG.
Also, the first Approt lotter knife 20 is idling and the corrugated paperboard 1 does not have a cut groove.

Next, when the digital preset counter 42 reaches the initially set preset value, the first drive air cylinder 31 starts to operate and the upper piece 18 is lowered as shown by an arrow C in FIG. 2 (C). Excuse me. Therefore, as shown in FIG. 3D, the upper piece 18 is in contact with the corrugated paperboard 1, and when the corrugated paperboard 1 is continuously conveyed, the first upper slotter knife 20 as shown in FIG. The first notch groove is formed in the rear end portion of the corrugated paper 1 on the basis of the pressure contact action with the disk-shaped lower piece (see lower pieces 6 and 7 in FIG. 7). In the same figure (F), the completion of cutting of the first cutting groove is shown in the third.
The sensor 38 detects the signal, and the signal of the third sensor 38 is transmitted to the first drive air cylinder 31 to raise the first upper piece 18 as shown by arrow F. ,
The cutting operation of the first cutting groove is completed.

Next, the operation of the disc-shaped upper piece 19 and the second appa lotter knife 21 fixed to the second appa lotter shaft 17 will be described with reference to FIG. First, the fourth sensor 39 senses the passage of the leading edge of the corrugated paper 1 and the second drive air cylinder.
33 starts to operate, the upper piece 19 rotates, and the second upslotter knife 21 is driven to move downward to form a second cut groove at the leading end of the corrugated paper 1 as shown in FIG. . Then, as shown in FIGS. 6C and 6D, the upper piece 19 is in a skipped state, the corrugated paper sheet 1 is being conveyed, and the fifth sensor 40 senses the position of the second upslotter knife 21.
When the fourth sensor 39 senses the end of the corrugated paper 1 as shown in FIG. 7E, the second drive air cylinder 33 starts to operate and the upper piece 19 is driven downward as shown by arrow F. The cutting operation of the second cutting groove is started for the corrugated cardboard paper 1.

In the above description of the operation, it is not necessary to synchronize the timings of feeding and conveying the corrugated cardboard paper 1, and only the corrugated corrugated paper sheets 1 that are conveyed exceed the normal length. The Appalos Rotta Knife 20,21
It is an operational feature of the present application that one of the Appalos rotter knives is skipped upward so as not to cut one corrugated cardboard sheet twice by moving up and down.

As is clear from the above description of the operation, the first and second upslotter shafts 16 and 17 are respectively provided in the drive air cylinder 3
Driven independently by 1 and 33, the upper piece 18 to which the first and second upslotter knives 20 and 21 are fixed
Up and down movements of 19 and 19 can be performed. Therefore, upper piece 18,1
Circumferential dimensions of 9 and the first and second Appalos knives 20,21
L2 regardless of the dimension of the notch groove 2,2 ...
(Height dimension of body part in molded cardboard box) can be arbitrarily set, and any length dimension L of corrugated cardboard paper 1
Even in this case, the cut groove can be formed at a desired position.

Corrugated paper 1 depending on the use and type of cardboard box
Even if the gap in the length direction of the notch groove formed at the front end portion and the rear end portion of the above is set to a length that cannot be formed by the conventional device, the positions of the various sensors and the first and second upslotter shafts 16 , 17 intervals, the Approslotta knife 2
This can be dealt with by changing the shapes of 0 and 21.

Furthermore, the vertical movement mechanism provided on the first and second up-slotter shafts 16 and 17 is not limited to the cam mechanism, but can be changed to other mechanical means.

EFFECTS OF THE INVENTION As described in detail above, according to the corrugated board box forming slotter device of the present invention, the drive mechanism that allows the first upslotter shaft and the second upslotter shaft to move up and down independently is provided. In addition, a plurality of sensors for detecting the moving state of the corrugated paper are provided on the corrugated paper conveyance path, and the lifting mechanism for the first and second upslotter shafts is independently designed based on the signals detected by the sensors. When the corrugated cardboard paper reaches a predetermined position on the conveyance path based on the sensor detection signal, one of the first and second up-slotter shafts is driven downward by the vertical movement mechanism to drive the disk into a disk. The upper part of the corrugated cardboard is located at the front or rear end of the corrugated cardboard that is transported in the slotter transport path based on the pressure contact between the disk-shaped lower block and the upper block. It can be formed notches long.

Therefore, even if the above-mentioned notch is at a position and a length that cannot be formed by the conventional device, the position of the sensor, the interval between the first and second upslotter shafts, and the operation control of the vertical drive mechanism are dealt with. It is possible to form desired cut grooves at the front end and the rear end of any corrugated paper of any length without being limited to the length of the corrugated paper.

Therefore, it is not necessary to prepare a dedicated slotter device according to the shape of the cardboard box, so the versatility of the device can be enhanced, and even for corrugated paper sheets with different length dimensions, the replacement work of the appa slotter knife etc. It is possible to achieve high-speed operation of the apparatus, improve operability, and reduce costs.

[Brief description of drawings]

FIG. 1 is a perspective view for explaining an essential part of a slotter device for forming a corrugated board box according to the present invention, FIGS. 2 and 3 are explanatory views of its operation, and FIG. 4 is a corrugated paper sheet before forming a cut groove. FIG. 5 is a plan view showing the corrugated cardboard paper after forming the cut grooves, and FIG. 6 is a perspective view showing the corrugated board box.
FIG. 7 is a schematic diagram showing a conventional notch forming means. 1 ... Corrugated cardboard 2 ... Notch grooves 14, 15 ... Bearings 18, 19 ... Upper piece 16 ... 1st upslotter shaft 17 ... 2nd upslotter shaft 20 ... 1st upslotter knife 21 …… Second Appalos knife 27,27 …… Eccentric cam 28,29 …… Drive connecting shaft 31,33 …… Air cylinder for drive 36,37,38,39,40 …… Sensor 42 …… Digital preset counter

Claims (1)

[Claims] 1. A disk-shaped upper piece having a first slotter knife for forming a first cut groove is fixed at a predetermined position of a corrugated paper sheet conveyed in a horizontal direction, and is above a corrugated paper sheet conveyance path. The first upslotter shaft disposed in parallel with the first upslotter shaft and the second incision groove at a predetermined position of the corrugated cardboard sheet in parallel with a position separated from the first upslotter shaft by a predetermined length in the transport direction of the corrugated sheet. And a second upslotter shaft, which is below the corrugated paper sheet transporting path and to which a disk-shaped upper piece having a second slotter knife for forming It comprises a disk-shaped lower piece arranged at a corresponding position, and cuts at the leading end and the trailing end in the carrying direction of the corrugated cardboard paper carried by the first and second slotter knives, respectively. In a slotter device for forming a corrugated board box in which a groove is formed, a drive mechanism is provided for individually lifting and lowering the first and second upslotter shafts, and the corrugated paperboard is conveyed. A plurality of sensors for detecting the moving state of the corrugated cardboard paper are provided on the path, and the elevating and lowering drive mechanism of the first and second upslotter shafts is independently driven and controlled based on the signals detected by the respective sensors to convey the corrugated paper. A slotter device for forming a corrugated cardboard box, characterized in that a notched groove having a preset length is formed at a front end portion and a rear end portion of the corrugated cardboard paper to be formed.