JP2013079125A - Conveying system of roll base paper - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a conveying system of roll base paper which can reduce the number of pieces of the roll base paper waiting in the vicinity of a mill roll stand to improve an operation environment, and supply the roll base paper efficiently.SOLUTION: The system includes: a time calculation means for calculating a paper feeding termination time of the roll base paper W loaded on the mill roll stands 3A, 3B, and 3C on the basis of a paper base length of the roll base paper W loaded on the mill roll stands 3A, 3B, and 3C; and a conveyance drive control means for starting conveying the roll base paper W from a charging part 7 on the basis of a conveying required time and the paper feeding termination time of the roll base paper W in a first conveyance path 5 in order to carry in the roll base paper W to a waiting part 11 simultaneously with the carry-out of the roll base paper W at the waiting parts 11 and 12 toward the mill roll stands 3A, 3B, and 3C.

Description

  The present invention relates to a roll base paper transport system that supplies roll base paper to a plurality of mill roll stands provided in a corrugating machine.

  A corrugating machine that manufactures a corrugated cardboard sheet includes a mill roll stand that supports a roll base paper in which a belt-like base paper sheet is wound into a roll shape (see, for example, Patent Document 1).

  A plurality of mill roll stands are provided according to the number of laminated cardboard sheets, and two roll base papers are loaded per one mill roll stand. The base paper sheet is fed out from one roll base paper loaded on the mill roll stand. Then, when the remaining amount of the base paper of one roll base paper is reduced, the old base paper sheet fed out from one roll base paper is separated from the roll base paper, and the end of the old base paper sheet is drawn from the other roll base paper. Bonded to the leading edge of the sheet and spliced. Thereby, the stop time of the corrugating machine with paper splicing can be shortened. The roll base paper whose remaining base paper amount is low is removed from one side of the mill roll stand and discharged, and a roll base paper is newly loaded there to prepare for the next paper splicing.

  The roll base paper is transported along the transport path and supplied to each mill roll stand. Conventionally, this type of conveyance path includes an input unit that inputs roll base paper, a first conveyance path that conveys the roll base paper input from the input unit along the arrangement direction of each mill roll stand, and the first conveyance There is known one constituted by a plurality of second transport paths that branch from the path and transport the roll base paper toward each mill roll stand (for example, see Patent Document 2).

  In this case, the roll base paper can be distributed and supplied from the first transport path to each second transport path without introducing the roll base paper from the vicinity of each mill roll stand. It is not necessary to provide an input space by a forklift or the like, and the space of the factory can be saved.

  However, since the conveyance distance by the 1st conveyance path which connects between an input part and a 2nd conveyance path is comparatively long, there exists a possibility that supply to the roll base paper to each mill roll stand cannot be performed rapidly. For this reason, a plurality of roll base papers are made to wait on the first transport path and the second transport path, and there is a disadvantage that the work space of the worker is pressed and the work environment is lowered.

JP-A-5-318633 Japanese Patent Laid-Open No. 2002-167086

  In view of the above points, the present invention can improve the working environment by reducing the number of roll base papers waiting in the vicinity of the mill roll stand, and can further efficiently supply the roll base paper. The purpose is to provide a system.

  The present invention is a roll base paper transport system for supplying roll base paper to a plurality of mill roll stands provided in a corrugating machine, wherein the roll base paper is input into the roll base paper and the roll base paper supplied from the input section is A first conveyance path that conveys along the arrangement direction of the mill roll stands, a plurality of second conveyance paths that branch from the first conveyance path and convey the roll base paper toward each mill roll stand, and each second conveyance A standby unit that is provided in the path and waits for the roll base paper to be loaded on the mill roll stand; and a transport control unit that controls the transport of the roll base paper in the first transport path and the second transport path, the transport control means, A time calculating means for calculating a paper feed end time of the roll base paper loaded in the mill roll stand based on the base paper length of the roll base paper loaded in the mill roll stand; In order to carry the roll base paper into the standby section in accordance with the timing when the roll base paper is carried out toward the mill roll stand, the input section is based on the required time for transporting the roll base paper in the first transport path and the paper feed end time. And a conveyance drive control means for starting the conveyance of the roll base paper from.

  In the present invention, by providing the above configuration, when the roll base paper of the standby unit is carried out toward the mill roll stand, the roll base paper is carried into the standby unit in accordance with the timing. Thereby, in order to save space in the factory, even if the input unit is provided at a position relatively away from the mill roll stand via the first conveyance path, the roll base paper is efficiently supplied without causing time loss. be able to. And it is not necessary to wait for the roll base paper at a position other than the standby section, and the standby quantity of the roll base paper in the vicinity of the mill roll stand can be reduced, so that the work space for the operator is widened and the working environment is improved. be able to.

The top view which shows typically the conveyance system of one Embodiment of this invention.

  An embodiment of the present invention will be described with reference to the drawings. As schematically shown in FIG. 1, the transport system in the present embodiment transports a roll base paper W that is provided in a corrugating machine that manufactures a corrugated cardboard sheet and on which a base paper that is a material of the corrugated cardboard sheet is wound so as to be unrolled Is.

  The corrugating machine is not shown in its entirety, but includes a single facer 1 and a double facer 2 as a part of the configuration. Single facer 1 produces a single-sided cardboard sheet by laminating a liner on one side of the corrugated core, and double facer 2 then double-sides another liner on the other side of the core of the single-sided cardboard sheet. Corrugated sheet is manufactured.

  First to third mill roll stands 3 </ b> A, 3 </ b> B, and 3 </ b> C are respectively provided before and after the single facer 1 and in front of the double facer 2. Each of the mill roll stands 3A, 3B, 3C is well known and will not be described in detail, but includes a pair of base paper support portions 4 that support the base paper roll W in a detachable and rotatable manner.

  Each of the mill roll stands 3A, 3B, 3C has a pair of base paper support portions 4 because when the base paper is fed out from the roll base paper supported by one base paper support portion 4, the roll base paper is fed by the other base paper support portion 4. This is because the corrugating machine is continuously operated by preparing and automatically splicing.

  A roll base paper W for the front liner is alternately supplied in two lines to the first mill roll stand 3A disposed in front of the single facer 1, and the second mill disposed in the rear of the single facer 1. The core roll base paper W is alternately supplied to the roll stand 3B in two lines. The third mill roll stand 3C arranged in front of the double facer 2 has two lines of roll liner paper W for the back liner. Alternately supplied.

  Next, the conveyance path of the roll base paper W in this embodiment will be described. A carry-in conveyor 5 (first conveyance path) that conveys the roll base paper W at a predetermined speed in a certain direction (the arrow direction in the figure) along the arrangement direction of the first to third mill roll stands 3A, 3B, 3C. And a carry-out conveyor 6 are provided. The carry-in conveyor 5 and the carry-out conveyor 6 are extended in parallel via the mill roll stands 3A, 3B, 3C.

  Three input tables 7 (input units) are connected to the upstream end of the carry-in conveyor 5. Roll base paper W stored in a storage (not shown) is transferred to each input table 7 by a forklift or the like based on the order sheet. At this time, the roll base paper W is sorted and placed on the three input tables 7 for the front liner, the core, and the back liner, respectively.

  Each loading table 7 has a bottom plate inclined toward the carry-in conveyor 5 so that the roll base paper W can be loaded into the carry-in conveyor 5 at a predetermined timing by opening and closing the stopper 8.

  A transfer conveyor 9 (second transport path) extending in a direction orthogonal to the carry-in conveyor 5 is provided between the base paper support 4 and the carry-in conveyor 5 of each mill roll stand 3A, 3B, 3C.

  When the roll base paper W is conveyed by the carry-in conveyor 5 and the carry-in conveyor 5 is stopped at a position corresponding to the upstream end of the transfer conveyor 9, the rolls are provided along the carry-in conveyor 5 corresponding to each transfer conveyor 9. The kicker 10 presses the roll base paper W toward the transfer conveyor 9. As a result, the roll base paper W rolls on the transfer conveyor 9.

  Each transfer conveyor 9 is provided with first and second standby units 11 and 12 for waiting for the roll base paper W. The first standby unit 11 located upstream of the transfer conveyor 9 includes a lifter 13 that can be raised and lowered on which the roll base paper W is placed. The lifter 13 forms a predetermined gap in the floor surface in a state where the roll base paper W is lifted, and prevents the roll base paper W from rolling to stand by.

  Although not shown, the second standby unit 12 includes a lifter similar to that of the first standby unit 11, forms a predetermined gap in the floor surface in a state where the roll base paper W is lifted, and rolls the roll base paper W. Prevent and wait.

  The transfer conveyor 9 places and transfers the roll base paper W on the carriage as the carriage (not shown) travels. Since the roll base paper W of the first standby unit 11 and the second standby unit 12 is in a standby state with a predetermined gap between it and the floor surface, the cart is the first standby unit 11 or the second standby unit. It is possible to enter under the 12 roll base papers W. The carriage is pulled back and forth between the base paper support unit 4 and the first standby unit 11 by being pulled by a pulling chain (not shown) provided on the transfer conveyor 9.

  Moreover, the transfer conveyor 9 continues to the delivery conveyor 14 from the position of the base paper support 4 of each mill roll stand 3A, 3B, 3C. The delivery conveyor 14 sends the roll base paper W removed from the base paper support portions 4 of the mill roll stands 3A, 3B, 3C toward the carry-out conveyor 6.

  Here, when the roll base paper W removed from the base paper support section 4 is sent out along the delivery conveyor 14, the roll base paper W of the second standby section 12 is placed on the carriage by the lowering of the lifter, and the base paper support section 4 It is transferred to the position. When the roll base paper W is loaded on the base paper support section 4 and the carriage is released, the carriage moves below the roll base paper W of the first standby section 11 and the lifter 13 descends to place the first standby section on the carriage. Eleven roll base papers W are placed. Thereafter, the carriage transports the roll base paper W to the second standby unit 12. During the transport, the carriage is rotated by a rotating means (not shown) so that the axis of the roll base paper W and the axis of the base paper support unit 4 coincide with each other. Is done.

  When the roll base paper W is no longer on the lifter 13 of the first standby unit 11, the roll base paper W from the carry-in conveyor 5 is supplied to the first standby unit 11.

  In the present embodiment, the roll base paper W is set so that the axis of the roll base paper W coincides with the axis of the base paper support section 4 during the transfer of the roll base paper W from the first standby unit 11 to the second standby unit 12 of the transfer conveyor 9. Therefore, for example, it is not necessary to provide a large mechanism such as a rotary table on the carry-in conveyor 5, and the apparatus configuration can be simplified and space saving can be realized.

  The roll base paper W removed from the base paper support unit 4 is placed on a cart (not shown) of the delivery conveyor 14 and sent out onto the carry-out conveyor 6. At this time, the carriage is rotated by a rotating means (not shown) so that the axis of the roll base paper W is rotated along the carrying direction of the carry-out conveyor 6. The roll base paper W conveyed downstream of the carry-out conveyor 6 is discharged to the discharge table 16 through the turntable 15. The roll base paper W on the discharge table 16 is transported to a predetermined position in the storage by a forklift or the like and stored.

  The conveyance of the roll base paper W in the conveyance path configured as described above is controlled by the conveyance control means 17. The conveyance control means 17 is composed of a computer that is communicably connected to the operation control means of the single facer 1 and the double facer 2, and is not shown, but is connected to the base paper support 4 of each mill roll stand 3A, 3B, 3C. First calculation means for calculating the feed end time for each loaded roll base paper W (corresponding to the time calculation means of the present invention), and base paper support for each mill roll stand 3A, 3B, 3C from each input table 7 The second calculation means for calculating the time required for transporting the roll base paper W to the first standby section 11 of the transfer conveyor 9 corresponding to the section 4, and the transport drive control for controlling the driving of the stopper 8 of the input table 7 and the carry-in conveyor 5. Means as part of the function.

  Further, the conveyance control means 17 collects the type of the roll base paper W and the remaining base paper length (base paper length) when it is placed on the input table 7, and the individual roll base paper W on the input table 7 is sent to any transfer conveyor 9. Decide whether to supply. The type and length of the roll base paper W collected at this time are stored in the storage means.

  Here, the control by the transport control means 17 according to the gist of the present invention will be described. When the roll base paper W is loaded on one base paper support section 4 of the first mill roll stand 3A, first, the transport control means 17 reads the base length of the roll base paper W stored in the storage means, and sends it to the corrugating machine. The set base paper supply speed of the first mill roll stand 3A (speed at which the base paper is fed from the roll base paper W) is sampled, and the calculation by the first calculation means is performed. In the first calculation means, the paper feed end time of the roll base paper W loaded on the base paper support unit 4 (predicted required time from the start of supply of the roll base paper W to the end of supply) is calculated.

  Next, the conveyance control means 17 collects the conveyance speed of the roll base paper W set in the carry-in conveyor 5 and passes the value to the second calculation means. The second computing means holds the distance to the position corresponding to the upstream end of each transfer conveyor 9 of each mill roll stand 3A, 3B, 3C in the carry-in conveyor 5 in the data table, and the carrying speed of the carry-in conveyor 5 And the transport distance are used to calculate the required transport time (the estimated required time until the roll base paper W loaded from the loading table 7 arrives at the upstream end of the transfer conveyor 9).

  It is possible to cope with a change in the transfer speed of the carry-in conveyor 5 by calculating the required transfer time by the second calculation means. However, if the transfer speed of the carry-in conveyor 5 is not changed, the loading table 7 is used. The required time until the roll base paper W arrived at the upstream end of each transfer conveyor 9 may be collected in advance, and these times may be held in a data table and used.

  On the other hand, the supply of the base paper to the single facer 1 proceeds from the roll base paper W loaded on one base paper support portion 4 of the first mill roll stand 3A, and the base paper remaining amount of the roll base paper W decreases. During this time, the conveyance control unit 17 monitors the supply elapsed time of the roll base paper W by the conveyance drive control unit. Then, the conveyance drive control means subtracts the supply elapsed time from the paper feed end time calculated by the first calculation means, and when the remaining time becomes the required conveyance time calculated by the second calculation means, The roll base paper W is rolled onto the carry-in conveyor 5 with the stopper 8 opened, and the carry-in conveyor 5 is further driven to start conveying the roll base paper W.

  Thereby, when the supply of the base paper from the base paper W loaded in one base paper support portion 4 of the first mill roll stand 3A is completed, a new base roll W can be brought into a position where it can be carried toward the transfer conveyor 9. It is in a state of being conveyed. Then, when the roll base paper W of the second standby unit 12 is transferred to the base paper support unit 4 and the roll base paper W of the first standby unit 11 is transferred to the second standby unit 12, the conveyance drive control means immediately The kicker 10 is driven, and the roll base paper W is transferred from the carry-in conveyor 5 to the first standby unit 11.

  The above-described operation of the conveyance control means 17 is performed for conveyance of the roll base paper W to all the mill roll stands 3A, 3B, 3C.

  According to this, since the quantity of the roll base papers W waiting on each transfer conveyor 9 can be reduced, the work space of the worker in the vicinity of the mill roll stands 3A, 3B, 3C is compressed by a large number of roll base papers W. The work environment is improved. Moreover, since the roll base paper W can be quickly supplied by the control of the conveyance control means 17, the corrugated board sheet can be manufactured efficiently.

  W ... roll base paper, 3A, 3B, 3C ... mill roll stand, 5 ... carry-in conveyor (first transport path), 7 ... loading table (feeding section), 9 ... transfer conveyor (second transport path), 11 ... first Standby section (standby section), 17... Transport control means.

Claims (1)

A roll base paper transport system for supplying roll base paper to a plurality of mill roll stands provided in a corrugating machine,
An input unit for supplying roll base paper, a first transport path for transporting roll base paper input from the input section along the arrangement direction of the mill roll stand, and a branch base paper branched from the first transport path A plurality of second conveyance paths that convey toward the mill roll stand, a standby unit that is provided in each second conveyance path and waits for the roll base paper loaded in the mill roll stand, and the first conveyance path and the second conveyance path A transport control means for controlling the transport of the roll base paper,
The transport control means includes a time calculation means for calculating a paper feed end time of the roll base paper loaded on the mill roll stand based on a length of the base paper of the roll base paper loaded on the mill roll stand; In order to carry the roll base paper into the standby unit in accordance with the timing of carrying out toward the mill roll stand, the roll from the input unit is based on the time required for transporting the roll base paper in the first transport path and the paper feed end time. A roll base paper transport system comprising transport drive control means for starting transport of base paper.

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