JPH0815963B2 - Paper roll supply and recovery system for corrugating machine - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a supply / recovery system for raw paper rolls in a corrugated machine.

[0002]

2. Description of the Related Art A corrugating machine has a plurality of mill roll stands, each of which has the same number of paper layers as a cardboard sheet. A slat conveyor is connected to this mill roll stand, and the necessary base paper rolls are taken out of the warehouse by a forklift according to the production plan regarding the type and length of corrugated sheet paper, and are arranged on the slat conveyor in the order in which they will be used. .

[0003]

The index of the base paper roll having the paper type and the remaining amount corresponding to the production plan of the corrugated sheet has been conventionally performed by relying on the experience and intuition of the operator. It is difficult to index the optimum amount of base paper roll. For this reason, the number of so-called remaining base paper rolls increases, pressing down the warehouse space, and in order to produce one type of corrugated sheet, there is no choice but to use a small number of base paper rolls. There was also a problem with work efficiency.

An object of the present invention is to automate the indexing of an optimum base paper roll corresponding to a corrugated sheet production plan and the conveyance of the roll to a mill roll stand.

[0005]

A feature of a base paper roll supply and recovery system according to the present invention is that the supply and recovery of base paper rolls connected to the base paper roll supply and recovery positions of a plurality of mill roll stands of a corrugating machine. Aisle,

Conveying means for conveying the base paper roll from the base paper roll warehouse to the inlet of the supply passage and from the outlet of the recovery passage to the warehouse.

With respect to each of the base paper rolls and the detection means for detecting the consumption length of each base paper roll in each mill roll stand,
For the unused new base paper roll, the consumption length is set to zero and the initial length is calculated as the current length, and for the remaining base paper roll that has not been used, the initial length or the remaining length at the previous supply and the detection result (consumption length) of the detection means. Based on and, the current length calculating means for calculating the current length of each base paper roll,

Calculation result of the current length calculation means (current length)
A storage means for storing with the paper type of each base paper roll,
Based on the calculation result (paper type and current length) for each base paper roll stored in the storage means, the arrangement combination of the base paper rolls relating to the paper type and the current length in the supply passage,
Array combination calculation means for calculating to correspond to the production plan of the type and length of corrugated sheet,

And a control means for controlling the carrying means according to the calculation result of the array combination calculating means.

[0010]

The current length of each base paper roll is calculated by the detecting means for detecting the consumed length and the current length calculating means and stored in the storage means together with the type of paper. When the production plan of the type and length of the corrugated sheet is determined, the index of the optimum base paper roll required in the production order of the corrugated sheet is calculated based on this by the arrangement combination calculating means, and the conveying means is controlled according to the calculation result, The optimum base paper roll is supplied from the base paper roll in the warehouse to the base paper roll supply passage of the mill roll stand, and the unused base paper roll is returned to the warehouse by the transport means.

[0011]

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic plan view showing a supply / recovery configuration of a raw paper roll of a corrugating machine (main body is not shown). In the figure, 2 is a warehouse where the base paper roll 4 is stored, 6 is a forklift, 8a and 8b are supply chutes for supplying the base paper roll 4, 10a and 10b are supply slat conveyors connected to the supply chutes 8a and 8b, and 12 Is a rectangular annular passage 14a, 14b arranged around the corrugating machine
Is a trolley provided in the annular passage 12, 16 (16a, 16
b), 17 (17a, 17b), 18 (18a, 18)
b) is a slat conveyor as a supply and recovery passage for the base paper rolls 4 in a total of 6 rows of 3 pairs, each of which is a pair of left and right arranged in parallel across the inside of the annular passage 12, 20 is a slat conveyor drive motor, 22 is a slat conveyor for collecting the raw paper roll 4 connected to the outside of the annular passage 12, 24 is a collecting chute connected to the collecting slat conveyor 22, and 25 is a computer.

A supply and recovery position P for the base paper roll 4 is set at the center of each slat conveyor 16-18, and the base paper roll 4 is placed between the supply and recovery positions P as shown in FIGS. 2 and 3. A mill roll stand 26 is provided which can be rotatably held. The mill roll stand 26 has a built-in detection means 39 (see FIG. 6) for detecting the length of the paper sheet fed from the base paper roll 4.

The carriages 14a and 14b are shown in detail in FIG.
As shown in FIG. 5 and FIG. 5, a base plate 28 and wheels 30 attached to the four corners of the lower surface of the base plate 28 and moving in the track grooves 29.
A pair of left and right drive wheels 32 arranged in the center of the lower surface of the base plate 28, a drive motor 36 for driving the drive wheels 32 via a chain 34, and a pair of slats arranged on the upper surface of the base plate 28. It is composed of conveyors 38a and 38b. The slat conveyors 38a, 38b are capable of stacking one roll of the base paper roll 4 each, and the slat conveyors 38a, 38b.
The distance b is equal to the distance between the supply slat conveyors 10a and 10b and the distance between the pair of slat conveyors 16a and 16b inside the annular passage 12 (the same applies to the slat conveyors 17 and 18).

The computer 25 has a block configuration shown in FIG. 6 in detail. That is, regarding each of the base paper rolls 4, the unused length of the new base paper roll is calculated as the consumption length of zero and the initial length is calculated as the current length. Based on the detection result (consumption length) of the present paper, the current length calculation means 40 for calculating the current length of each base paper roll, and the calculation result (current length) of the current length calculation means are stored together with the paper type of each base paper roll. Based on the storage means 42 and the calculation result (paper type and current length) for each base paper roll stored in the storage means 42, the arrangement combination of the base paper rolls relating to the paper type and the current length on the slat conveyors 16 to 18 is calculated. , Array combination calculation means 44 for calculating to correspond to the production plan of the type and length of the corrugated sheet, and as a conveyance means according to the calculation result of the array combination calculation means 44. Okurifuto 6 and carriage 14a, and a control unit 46 to issue a command to 14b.

Next, the operation of this embodiment will be described. Three
The pair of arms 26a, 26b of the mill roll stands 26, 26, 26 of the stand respectively rotatably grips the base paper roll 4 by one roll as shown in FIGS. 2 and 3, and only one of the base paper rolls 4 is held. Paper sheets are fed out. In this embodiment, a total of three paper sheets fed from the mill roll stand 26 are laminated by a gluing device 48 to produce a three-layer corrugated sheet.

Supply and recovery of the base paper roll 4 to the mill roll stand 26 are performed as follows. First, when the type, length and production sequence of the corrugated sheet to be produced are determined, this production information is input to the array combination computing means 44 of the computer 25. The array combination calculation means 44 collates the production information with the paper type and current length information of each base paper roll 4 accumulated in the storage means 42 to determine the base paper roll 4 of a desired paper type, and The arrangement combination of the base paper rolls 4 on the slat conveyors 16 to 18 is calculated so that the base paper roll 4 having the optimum remaining amount (current length) is used from the viewpoint of minimizing the number of the unused base paper rolls 4. To do. Based on the result of the above calculation, the operator of the forklift 6 is instructed to take out the predetermined base paper roll 4 from the warehouse 2 in a predetermined order and place it on the supply chutes 8a, 8b. Various methods can be adopted as this instructing method. For example, the display device on the driver's seat of the forklift 6 displays the shelf number in the warehouse 2 where the target raw paper roll 4 is located.

The base paper roll 4 supplied to the supply chutes 8a, 8b is conveyed to the side of the annular passage 12 by the supply slat conveyors 10a, 10b, and the two base paper rolls 4 as a set are slats of the carriages 14a, 14b. It is transferred onto the conveyors 16a and 16b, conveyed by the carriages 14a and 14b to the entrances of the slat conveyors 16 to 18, and then transferred onto the slat conveyors 16 to 18.

The base paper rolls 4 transferred on the slat conveyor 16 (to 18) are sequentially sent to the supply and recovery position P, and the arms 26a and 26b of the mill roll stand 26 are provided.
It is rotatably gripped. In this state, the paper sheet is fed out only from one of the base paper rolls 4, and when the remaining amount of the base paper roll 4 becomes almost zero, or when the production is switched to a different corrugated sheet, the paper sheet that has been fed up to now. Is cut to stop the feeding from one of the base paper rolls 4, and is switched to the feeding from the other base paper roll 4 instead. While using the other base paper roll 4, the slat conveyor 16
The new roll 4 is transported to the supply / recovery position P while being held by the mill roll stand 26. The base paper roll 4 conveyed to the exit side is transferred to the carriages 14a and 14b and conveyed to the recovery slat conveyor 22, where it is transferred to the recovery slat conveyor 22 and then discharged to the recovery chute 24. After that, it is returned to a predetermined position in the warehouse 2 by the forklift 6. The carts 14a, 14b are base paper rolls 4
Since the unused base paper roll 4 is received after unloading, the distance traveled by the empty carriage is small, which is efficient.

An example of an arrangement combination of the base paper rolls 4 on the slat conveyor 16 (17, 18) will be described with reference to FIG. The figure shows a 10,000m long corrugated sheet A,
This is a case where 8,000 m long corrugated sheets B are sequentially produced. From the supply and recovery position P on the slat conveyor 16a, 2000 m, 4000 m, 4000 in the front direction
The base paper rolls 4 having a remaining amount of m are arranged in order. Further, from the supply / recovery position P on the slat conveyor 16b on the opposite side, 4000 m, 3000 m, 1000 m in the front direction
The remaining base paper rolls 4 are arranged in order.

When the corrugated sheet A is produced, first, the base roll is used on the mill roll stand 26, the base roll is used up, and then the base roll is switched to the base roll while the base roll is used. The core material of the roll is removed and the base paper roll is supplied and collected at position P
To the mill roll stand 26, and after the base paper roll is used up, the use of the base paper roll is changed to remove the core material of the base paper roll.

Next, in order to prepare for production of the corrugated sheet B, the base paper roll is advanced to the supply and recovery position P, and the base roll is held by the mill roll stand 26 while the base roll is used. Then, after the base paper roll is used up, it is switched to use of the base paper roll. After that, as in the case of the corrugated sheet A, the slat conveyor 16
The corrugated sheet B is produced by alternately using the base paper rolls 4 of a and 16b. In addition, other slat conveyor 1
The same sequence combination is performed on Nos. 7 and 18.

An example of the arrangement combination is the case where the base paper roll is completely used up. However, when the base paper roll 4 that is used up is not in the warehouse 2 and the base paper roll 4 that is used up is unavoidably produced, the corrugated sheet to be produced later. The production plan of 1 is pre-read, and the optimum amount of the base paper roll 4 is indexed and supplied to the mill roll stand 26 so that as many residual base paper rolls as possible can be used up in the production.

Although one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment and various modifications can be made. For example, in the above embodiment, the annular passage 12
Although the annular passage 12 is abolished, the carriage 14 is provided between the warehouse 2 and the entrances and exits of the slat conveyors 16-18.
You may make it a and 14b reciprocate directly. In addition, the warehouse 2 is a fully automated warehouse, and the warehouse and the mill roll stand 2
It is also possible to directly connect the sheet feeding roller 6 and the sheet feeding means 6 with a supply and recovery passage, and to supply and recover the base paper roll 4 by running a plurality of automatic guided vehicles (AGV) in the passage.

In the above embodiment, the slat conveyor 38 is used.
Although the carriages 14a and 14b with a and 38b are used, when the slat conveyor is equipped, the mounting surface height of the base paper roll 4 is increased by at least the vertical thickness of the slat conveyors 16a and 16b with reference to the traveling surface of the carriage. Therefore, the slat conveyor 1 connected to the mill roll stand 26
In order to match the height position with 6a, 16b, etc., it is necessary to take measures such as lowering the traveling surface of the carriage. However, this requires a high equipment cost, so that it is preferable to use the dolly 15 as shown in FIGS. 8 and 9A and 9B. This dolly 15 has a cylinder 50 that expands and contracts in the horizontal direction,
A vertical guide 52 is attached to the tip of the cylinder 50, and a pair of forks 54 that support the raw paper roll 4 are arranged on the side surfaces of the vertical guide 52 so as to be able to move up and down. Therefore, the carriage running surface 56 and the slat conveyor 16 (17, 1
Even if 8) is the same height, there is no problem in transferring the base paper roll 4.

[0025]

As described above, according to the present invention, the current length of each base paper roll is calculated by the detection means and the current length calculation means and stored in the storage means together with the paper type, and the production plan of the type and length of corrugated sheet is produced. The base paper roll required for the calculation is calculated by the array combination calculation means, the conveyance means is controlled according to the calculation result, and the optimum quantity of the base paper roll from the base paper roll in the warehouse is the raw paper roll supply passage of the mill roll stand. The number of remaining base paper rolls can be minimized to effectively utilize the space in the warehouse, and the number of base paper rolls required for corrugated sheet production can be minimized to replace the number of base paper rolls. Can be reduced and production efficiency can be increased.

[Brief description of drawings]

FIG. 1 is a schematic plan view of a corrugating machine in which a main body is omitted.

FIG. 2 is a plan view of a mill roll stand.

FIG. 3 is a sectional view taken along the line III-III of FIG.

FIG. 4 is a plan view of the truck.

FIG. 5 is a sectional view of a dolly.

FIG. 6 is a block configuration diagram of a base paper roll supply and recovery system.

FIG. 7 is a plan view around a mill roll stand showing an example of an arrangement combination of base paper rolls.

FIG. 8 is a side view showing a modified example of the truck.

FIG. 9A is a front view of a trolley for transporting a base paper roll,
(B) is the same front view when the base paper roll is unloaded onto the slat conveyor.

[Explanation of symbols]

 2 Warehouse 4 Base paper roll 6 Forklift 8a, 8b Supply chute 10a, 10b Supply slat conveyor 12 Annular passage 14a, 14b Truck 15 Truck variant 16-18 Slat conveyor 22 Collection slat conveyor 24 Collection chute 25 Computer 26 Mill roll stand 40 current length calculation means 42 storage means 44 array combination calculation means 46 control means

Claims (1)

[Claims] 1. A raw paper roll supply and recovery passage connected to a raw paper roll supply and recovery position of a plurality of mill roll stands of a corrugating machine, and a raw paper roll from a raw paper roll warehouse to an inlet of the supply passage. , And a transport means for transporting from the exit of the recovery passage to the warehouse, a detection means for detecting the consumption length of each base paper roll in each mill roll stand, for each base paper roll, for an unused new base paper roll Calculates the initial length as the current length with a consumption length of zero, and the remaining length of the remaining base paper roll is the initial length or the remaining length at the time of the previous supply, and the detection result (consumption length) of the detection means,
Current length calculation means for calculating the current length of each base paper roll, storage means for storing the calculation result (current length) of the current length calculation means together with the paper type of each base paper roll, and base paper roll stored by the storage means Based on the calculation result (paper type and current length) for each, the arrangement combination of the base paper rolls related to the paper type and current length in the supply passage,
It is characterized by having an array combination computing means for computing so as to correspond to the production plan of the type and length of corrugated sheet, and a control means for controlling the carrying means according to the computation result of the array combination computing means. Paper roll supply and recovery system for corrugated machines.