JPH0272035A - Unpacking method and apparatus for pulp - Google Patents

Abstract

PURPOSE:To prevent troubles of a centering device on operation, by moving back a pulp bail in the up-stream of a wire-cutting-off means and striking the rear part of the pulp bail at the base position protruded from the conveyor face and hereafter by feeding it again to the wire-cutting-off means. CONSTITUTION:When pulp bails 1 are transferred in the condition that those pulp bails are falsely aligned and shifted from the center on a conveyor in a first receiving process, the deviated rear of one pulp bail 1 from a conveyor 11a of an unstacker 11 is checked by a passing detector 11d of the pulp bail like a photosensor and a connection conveyor 12 is driven reversely to move back the pulp bail 1 placed on it and then striking the rear part of the pulp bail 1 at the base position 11e of the rear part of the conveyor 11a for example, such as the position protruded upwardly from the connection conveyor surface 12. The deviated position is corrected by the correct arrangement of the base position 11e along the conveyor width and the pulp bail is again transferred in due order to be delivered to the centering device 14.

Description

[Detailed description of the invention]

``Industrial Application Field'' The present invention relates to a pulp unpacking method and apparatus for cutting and removing binding wires in a package such as a pulp bale and peeling off the wrapping paper to expose the contents. "Prior Art" Generally, when pulp manufacturing equipment is not connected to a paper manufacturing plant, sheet-like pulp is disintegrated by a pulper and then used as a raw material for paper manufacturing. As shown in FIG. 1O, the sheet-like pulp is often provided as a so-called pulp veil 1, which is wrapped from above and below with wrapping paper 1a-1b and tied in a criss-cross pattern with wires Ic. Therefore, when putting pulp into a pulper and disintegrating it, it is necessary to cut and remove the bundled wires lc and peel and remove the wrapping paper 1a-1b. BACKGROUND ART Conventionally, as paper manufacturing plants become larger in size, in order to efficiently supply large amounts of pulp raw materials, a technique has been developed in which the unpacking of the pulp bale 1 is automatically carried out by a machine without relying on manual labor. Examples of related technologies are: (1) JP-A No. 134844 (ii) JP-A-61-047330 (ii) JP-A-61-047331 (iv) JP-A-62-10
9732 (V), JP-A-62-109733, etc. Based on these technical examples, the outline of pulp bale unpacking work is explained. While the pulp bale is being conveyed by a roller conveyor, the pulp bale is sandwiched from both sides by a centering device to prevent deviation in the width direction of the roller conveyor. After performing the alignment to be corrected, the wire is cut by a wire cutting machine, and the wire is pulled out and removed by a wire removing machine, and then the wrapping paper is sucked and peeled off using vacuum pressure by a suction machine. The content, pulp, is exposed. By automating the entire unpacking process, unpacking capacity is dramatically increased, labor is saved, and safety is achieved.Furthermore, pulp is automatically fed in according to the operating status of the pulper, and the entire line is improved. It has features such as being able to improve efficiency. [Problem to be solved by the invention] However, even with this pulp unpacking technology,
The following points remain that require improvement. (a) Pulp bales can be aligned to the center of the width of the conveyor using a centering device during transport, but the pulp bales may bend when loaded onto the conveyor or due to differences in resistance when taking over the conveyor. If a pulp veil is also applied, trouble may occur when the centering device operates, or the direction may not be corrected sufficiently.
There is a possibility that it will hinder the subsequent pulp unpacking work. (b) It is advantageous to load the pulp bale so that the width direction of the conveyor and the longitudinal direction of the pulp bale are aligned, because the loading length can be shortened. Troubles tend to occur frequently. (C) A technique for compensating for the misalignment of equipment from the time the wire is detected to the time when the position is set for wire cutting or wire removal work has not yet been resolved. (d) If the binding wire is misaligned or bent unevenly, detection errors are likely to occur. (1) Binding wires to the pulp bale may be hung out of position, and during the wire cutting and removal process, wire detection by the wire cutting machine and the wire pulling machine may be performed in an irregular state. In many cases, the above-mentioned conventional techniques are insufficient in compensating for this deviation. (1) In cases where the binding wire is greatly misaligned or bent, and is about to come off the pulp bale,
Wire detection becomes difficult. (

[) If the wire is pulled out without being cut, the pulp bale may be dragged and come off the conveyor line. (h) If the sizes of supplied pulp bales vary, unpacking becomes difficult. ([) If the wire that has been pulled out has large bends, it becomes difficult to cut the wire and many troubles occur. (J) Troubles tend to occur when the wrapping paper cannot be suctioned or when the suction device does not operate sufficiently. (k) If the types of pulp bales are mixed, it will be difficult to unpack the pulp bales, and the process of supplying pulp to necessary locations and the process of wrapping paper will likely become inaccurate. The present invention solves the problems of the prior art as described above. (a) Achieves automation of a series of work lines during the unpacking process and the processes before and after the unpacking process. (b) Especially to improve the efficiency of unpacking work. (c) To improve the reliability of unpacking work by reducing the causes of trouble. The purpose is to "Means for Solving the Problems" The pulp unpacking method and device according to the present invention are a method applied to each process in a series of work lines in the unpacking process and its preceding and following processes, or a method for implementing the process. This includes equipment, equipment, etc. The first invention is a pulp unpacking method in which the wires binding wrapping paper are cut and removed while the pulp bale is being transported by a conveyor, and the upper and lower wrapping papers are suction removed. This pulp unpacking method is characterized in that the pulp bale is retreated at an upstream position of the wire cutting and removing means, the rear part of the pulp bale hits a reference part protruding from the conveyor surface, and then the pulp bale is transferred again and sent to the wire cutting and removing means. . The second invention is a pulp unpacking device that cuts and removes the wires binding the wrapping paper while transporting the pulp bale by an unpacking conveyor, and removes the upper and lower wrapping papers by suction. A reference part located above the conveyor surface of the unpacking conveyor is provided on the downstream side of the connected conveyor that transfers the information to the unpacking conveyor, and a wire cutting and removing means is installed in the drive system of the unpacking conveyor. A pulp unpacking device, characterized in that an unpacking operation control section is connected to the pulp bale for retracting the pulp bale until it hits the reference section at an upstream position, and then transporting the pulp bale again to the wire cutting and removing means. It is. In these first and second inventions, when the posture of the pulp bale being transported by the conveyor is tilted with respect to the conveying direction, the posture is corrected by backing up and hitting a reference part protruding from the conveyor surface. be done. Thereafter, by transferring the pulp bale again, the pulp bale is placed in the correct posture and sent to the downstream process. The third invention comprises a step of correcting the posture of the pulp bale to be transferred horizontally, and a step of measuring the pulp bale dimension in the transfer direction or width direction after the direction is corrected by the posture correction step. It is the composition. Mainly, the pulp bales that are being transported horizontally one by one are corrected in their orientation with respect to the transport direction during transport, and the dimensions of the pulp bales in the corrected state are measured. It is used for pulp bale unpacking work. The fourth invention relates to a pulp unpacking device, which includes a centering device that corrects the position of the pulp bale on the conveyor to the center of grip by gripping it from both sides, and a centering device located downstream of the centering device that adjusts the position of the pulp bale to the center of the grip by gripping the pulp bale on the conveyor from both sides. The apparatus includes a wire cutting and removing device that cuts and removes the pulp, and a measuring device that measures the length of the pulp bale in the transport direction is provided between the centering device and the wire cutting and removing device. Then, by gripping operations from both sides by the centering device, the pulp bale is moved in the gripping direction, that is, in the width direction with respect to the conveyor, and the pulp bale is positioned at the center of the conveyor. The measurement is performed in the direction in which the bale is transported, and then used as data when the binding wire of the pulp bale is cut and removed in the wire cutting and removing device. A fifth invention operates the measuring means when a part of the conveyor receives the load of the pulp bale, and stops the measuring means when the part of the conveyor is in a load-released state, and the conveyor moves during that time. t i: J: This configuration includes a step of measuring the length of the pulp bale in the transport direction. Then, the operation of the measuring means is controlled depending on when a part of the conveyor receives a load due to the passage of the front part of the pulp bale and when the load is released due to the passage of the rear part of the pulp bale, The size of the pulp bale in the transport direction is detected and used as control data for the pulp bale unpacking operation in subsequent steps. The sixth invention relates to a measuring device in a pulp unpacking device, and is configured to include means for detecting the amount of rotation of a roller rotated by passage of a pulp bale. and,
A roller provided at a location where the pulp bale passes is rotated, and the amount of rotation is detected and converted into the dimension of the pulp bale in the transport direction. A seventh invention relates to a measuring device in a pulp unpacking device, and a configuration is added to the pulp unpacking device according to the seventh invention, which includes a means for detecting the width dimension of the pulp bale during transportation. The structure is as follows. Then, the width dimension of the pulp bale in the position corrected state is also measured and used as control data for the pulp bale unpacking operation in the subsequent process. The eighth invention relates to a centering device in a pulp unpacking device, and the pulp unpacking device according to the fourth invention includes:
This is a configuration in which a configuration is added that includes a pair of restraining plates that sandwich the pulp bale in the width direction, and a means for detecting the distance or movement amount of the pair of restraining plates. Then, almost simultaneously with the process of correcting the position of the pulp bale, the width dimension of the pulp bale is detected and used as control data for the pulp bale unpacking operation in the subsequent process. The ninth invention relates to a pulp unpacking device, which includes a measuring device and a wire cutting and removing device, and the wire cutting and removing device detects the tip position of the pulp bale by the measuring device, and then Control means for stopping the pulp bale when the pulp bale is transported at a distance equal to the separation distance from the measuring means and the reference center position of the wire cutting and removing device plus half the length of the pulp bale in the transport direction. This is a configuration where there is Then, the pulp bale transfer means is controlled using the measuring means, and the passage detection of the leading end of the pulp bale by the measuring means is correlated with the position of the measuring means and the wire cutting/removal device. It is to be stopped at the center of the cutting and removing device. The tenth invention detects the position of the binding wire of the pulp bale by parallel movement in the transport direction of the conveyor with respect to the pulp bale fed in for wire cutting and removal, and detects the wire by the parallel movement. This configuration has a step of changing the vertical position and detecting the wire again if the wire is not detected. Assuming that the detection of the wires binding the pulp bales is not performed normally, by changing the wire detection position vertically and repeating the detection, we can detect the inside of the wrapping paper of the pulp bales. The accuracy of detecting wires that are biting into the wire or hidden behind wrapping paper is improved by changing the position. The eleventh invention relates to a pulp unpacking device, and includes a turner that lifts a pulp bale supported on a conveyor and turns it 90 degrees, and a turner that moves the pulp bale on the turner in the conveying direction of the conveyor. wire detection means for detecting the position of the binding wire of the pulp bale by parallel movement;
This configuration includes a control means for changing the vertical position of the wire and detecting the wire again. If the wires binding the pulp bales are not detected correctly, the wire detection position is changed vertically by operating a turner, and the detection is repeated at the changed position.
In addition to increasing the accuracy of wire detection, similar wire detection is performed by rotating each side of the pulp bale by 90 degrees using a turner. The twelfth invention is a step of detecting the position of the binding wire of the pulp bale by scanning a pair of wire detection means spaced apart in the direction of conveyance by the conveyor in parallel to the direction of conveyance;
This configuration includes a step of switching to relatively low-speed scanning after the wire is detected by the front wire detecting means and stopping between the pair of wire detecting means, and a step of cooling the wire at the stopped position. In the wire detection step, a pair of wire detection means are activated by scanning in one direction, and when one of the wire detection means in front of the scan detects a wire, low-speed scanning is performed and stop position control and braking are performed. It facilitates A thirteenth invention is a configuration obtained by adding a configuration to the configuration of the twelfth invention in which scanning of a pair of detection means is performed by a servo motor. Then, scanning is performed by a servo motor, and when one of the wire detection means in front of the scan detects a wire, the rotation of the servo motor is changed to a low speed scan, and the stop position is controlled and braking is performed. It is something. Invention H is a pulp unpacking method in which wires binding wrapping paper are cut and removed while conveying a pulp bale on a conveyor, and upper and lower wrapping papers are removed by suction. When the wire detection means and the wire detection means are scanned in the same direction as the wire detection means and the wire detection means do not operate at almost the same time, the operation range of the wire detection means located on the non-wire detection side is expanded and wire detection is performed within an allowable range. This pulp unpacking method is characterized by activating a wire pulling machine when the wire is detected, and if wire detection is not performed at approximately the same time, it is assumed that there is no wire in the initial detection range. , detects the wire at another location, and then continues cutting that wire. A fifteenth invention provides a pulp unpacking method for cutting and removing the wires binding the wrapping paper while transporting the pulp bale by a conveyor, and sucking and removing the upper and lower wrapping papers, including a wire cutting machine, a wire puller, Scanning in the same direction with the wire detection means of the pulling machine starts from one left and right end of the pulp bale, and if the number of wires detected in one outgoing scan differs from the set number of wires, the wires are detected in the return pass and the wires are removed. This pulp unpacking method is characterized by operating a cutting machine and a wire pulling machine, and only when the number of detected wires on the wire cutting side and the wire pulling side match, the wire is cut and removed, thereby removing uncut wires. This is to prevent the material from being pulled out. The 16th invention relates to a pulp unpacking device, and includes a wire cutting machine that cuts a wire on one side of a pulp bale;
A wire pulling machine that grasps and pulls out the wire on the other side cut by the wire cutting machine with a clamp member, and the wire pulling machine performs the wire pulling operation under torque control by a servo motor, and the torque increases significantly. The structure is equipped with a means to stop the extraction in case of an abnormality. Then, without cutting the wire,
When the wire pulling machine operates, a servo motor performs torque control to detect that the torque has increased significantly and to stop the wire pulling. The 17th invention relates to a pulp unpacking device, and the 16th invention includes a structure in which a clamp member for grasping the wire is provided with a shearing blade portion that cuts the wire when the torque increases sharply during pulling. It is a configuration that is added to. If the wire pulling machine operates without cutting the wire, it detects that the torque of the servo motor increases significantly and stops the wire pulling. This is to deepen the intersection and cut the wire. In this case, even if the wire is not pulled out and remains, both sides of the wire are cut, leading to a state where the wrapping paper can be removed. The 18th invention includes a step of driving a wire detecting means in a wire removing device by a servo motor toward the pulp bale, a step of detecting contact pressure with the torque of the servo motor, and a scan for wire detection after detecting the contact torque. This configuration includes a step of starting the process. In the wire cutting and removal process, when the wire detection means is brought into contact with or in close proximity to the surface of the pulp bale, torque control by a servo motor facilitates detection of the contact and then scans the surface. be. The 19th invention relates to a pulp unpacking device, in which a wire pulling machine includes a moving means for pulling out the wire in a horizontal direction perpendicular to the conveyor transport direction, and a wire is provided in the middle of the moving means to prevent side slipping through the wire. The configuration includes a comb-shaped guide. Then, when pulling the wire outward from the side, if it passes through the comb-shaped guide,
It suppresses the lateral deflection of the wire, making it possible to pull it out in a straight line, and when the wire has curls,
By passing between the comb teeth, the shape is corrected to a nearly straight line. The 20th invention includes a step of removing the wrapping paper of a pulp bale in a state where the wire has been removed by vacuum suction using a plurality of suction pads, and a step of detecting the vacuum pressure during the suction operation at a certain time; This structure includes a step of closing the vacuum flow path of the suction pad that causes a large vacuum drop and performing suction using another suction pad. When suctioning the wrapping paper left on the pulp bale using multiple pads, if some of the pads have poor suction and the vacuum pressure does not increase,
The suction work is continued by blocking the vacuum flow path of the item with a large vacuum drop and suctioning with other pads. The 21st invention allows a plurality of suction pads to approach the wrapping paper of a pulp bale from which wires have been removed by operating a fluid pressure actuator, and adjusts the speed at the time of approach by the amount of operating fluid of the actuator to reduce the speed. The suction pad is brought into contact with the pal/veil in this state. At the time of suction, the amount of fluid sent to the actuator is adjusted while the suction pad approaches the valve veil by actuation of the actuator, and the suction pad in a decelerated state is brought into contact with the wrapping paper to perform suction. The 22nd invention relates to a pulp unpacking device, which includes means for adsorbing and removing wrapping paper located above the pulp bale from which wires have been removed, using vacuum pressure, and a length of the pulp bale in the conveyor transport direction. A pair of position sensors having an interval set in accordance with the size of the pulp bale, and a means for flipping the pulp bale upside down while gripping a portion near the interval when the pulp bale is present within the range of the position sensor. It is the composition. When one of the pair of position sensors is detecting the presence of a pulp bale, the reversing means is activated, and when one of the pair of position sensors is not detecting the pulp bale, the reversing means is deactivated. This prevents the pulp bale from being turned over in a cantilevered state. The 23rd invention is a pulp unpacking device that cuts and removes the wires binding the wrapping paper while transporting the pulp bale by an unpacking conveyor, and also suctions and removes the upper and lower wrapping papers. The pulp bale is equipped with a measuring device that measures the dimensions of the pulp bale while it is being moved by a conveyor, and a wrapping paper removing device that sets the suction release position of the sucked wrapping paper based on the measuring data of the measuring device. It is the composition. Considering that the vertical and horizontal dimensions of pulp bales differ depending on the arrival light, and the type of wrapping paper also differs, the release position of the wrapping paper is changed based on measurement data to separate the wrapping paper from the contents. If it is made of the same material as pulp, the aim is to reuse it. ``Example'' Hereinafter, an example of the pulp unpacking method and apparatus according to the present invention will be described based on FIGS. 1 to 9. First, the general structure of the entire pulp unpacking device will be explained with reference to FIG. This pulp unpacking device has many parts in its basic configuration similar to (i) to V) described above as examples of related technology, but improvements have been made in each part. Below, the unpacking process will be explained in order. In Figure 1, as shown by the symbols (a) to li), the general process of the entire pulp unpacking work is (a) the receiving process (the receiving is the department), and (b) the upper and lower separation process (the upper and lower separation process). part), (c) transfer direction separation process (transfer direction separation part), and (d) posture correction process (
(e) Measuring process (measuring part); (f) Wire cutting process (wire cutting part); (G) Wire removing process (wire removing part); (H) Wrapping paper. It is formed by organically combining a removal process (wrapping paper removal section) and a post-processing process (post-processing section). [Receiving is a process] In the receiving section (a), one pulp bale as shown in Fig. 10, pulp bales stacked one by one, or a pulp bale unit with two stacking rows are used. As shown in FIG. 1, the cargo is processed by loading it onto a conveyor 10 using a forklift or the like and sending it downstream. In this case, if the stacked pulp bales 1 or between each row are tied together in units, the cargo receiver is mounted on the conveyor 10 with the tied parts removed. If the vertical and horizontal dimensions of pulp bale 1 are different, the longitudinal dimensions should be
Although it is optional whether the conveyance direction is 0 or the width direction, the following description will be made assuming that the pulp bale 1 is mounted so that the longitudinal direction of the pulp bale 1 is aligned with the width direction of the conveyor 10 in order to improve handling. Further, as shown in FIG. 1, when a plurality of pulp bales l (forming a plurality of rows) are loaded onto the conveyor 10 at one time, they are loaded with the direction of the rows aligned with the transport direction. In addition, the conveyor IO for receiving goods is composed of a steel slat conveyor or the like. [Upper/lower separation process] In the upper/lower separation section (b), a plurality of stacked pulp bales l are removed from the bottom one by one, separated one by one, and then sent to the next process. There is. In other words, as an upper and lower separating means, an unstacker 11 is provided downstream of the conveyor 1O for receiving goods, and the unstacker 11
At this time, one or two rows of stacked pulp bales 1 are fed into the receiver from a conveyor IO. The unstacker j1, as shown in FIGS. 2 and 3,
Conveyor part I11, grip part 11b, and lift part 11c
The conveyor section 11 is made of, for example, a steel slat conveyor. When the pulp bales 1 are stacked on the conveyor section IIs, one or two rows of pulp bales 1 in the second stage from the bottom are gripped by the gripping part 11b, and the pulp bales 1 in the first stage from the bottom are gripped by the gripping part 11b. are vertically separated by lowering them with the lift part 11c, and the separated pulp bale 1 is transferred downstream, and then the upper surface height of the lift part 11c is returned to the original height to support the pulp bale 1 that was being gripped. do. The same process is repeated to sequentially send out the pulp bales 1 from the second stage to the next stage. [Transfer direction separation step] In the transfer direction separation section (c), the pulp bales l separated vertically in the unstacker 11 are separated in the transfer direction, and the conveyor speed of the next stage is relatively increased (for example, By making the transfer speed of the connected conveyor 12 that takes over the pulp bale 1 downstream faster than the transfer speed of the conveyor section 111 of the unstacker 11, multiple rows of The pulp bales 1 are spaced apart to prevent pulp bales 1 from coming into contact with each other in the transport direction from the unstacker 11 or from being sent in a row to the process after the attitude correction process. Note that the connecting conveyor 12 is made of, for example, a steel slat conveyor, and the conveyor section 11
This is a configuration in which the drive is controlled independently from the point a. [Posture correction process] In the posture correction section (d), the posture of the pulp bale 1,
In other words, the work of correcting the inclination with respect to the transport direction and the centering work of correcting the positional deviation in the width direction are performed.
The pulp bales 1 are sent out in a controlled manner 1 m at a time from the unstacker 11, and are transferred from the connected conveyor 12 to the unpacking conveyor 13, which is connected to a series or separately installed and operated at the same transfer speed. sent to. This conveyor 13 for unpacking work, the inclination correction means provided near it, the centering device 1 (and the reference numeral in FIG.
Control of each part shown in d) to d) is performed by commands from the unpacking operation control section 15. The unpacking work control unit 15 is, for example, a small computer,
It is composed of a sequencer, etc. The tilt correction work is carried out when the pulp bale 1 is transferred with bends or misalignments left during the loading process, or when the pulp bale 1 is transferred to the unstacker II conveyor. Assuming that when the pulp bale 1 is transferred from the section I11 to the connecting conveyor 12, the distance between the rear parts of the pulp bale 1 varies from side to side, and the horizontal posture is bent due to the difference in resistance between the left and right sides, 1. The rear part of pulp bale 1 is unstacker i! The separation from the conveyor section 11g is detected by the pulp bale passage detection means lid such as an optical sensor shown in FIG.
2 in the opposite direction and remove the loaded pulp bale 1.
is moved backward as shown by arrow A in FIG. The part of the roller set to
is correctly set along the width direction of the conveyor, correct the curvature of the posture, and then transfer it again in the forward direction as shown by arrow B in Fig. 3, and then transfer it to the centering device H. It will be implemented as follows. In this case, if the pulp bale 1 is mounted so that its longitudinal direction is aligned with the width direction of the conveyor, it is possible to make corrections when pushing past the reference portion 11e with relatively high accuracy. In addition, the unpacking conveyor 13 located downstream of the connecting conveyor 12 is equipped with a centering device as shown in FIGS. 14 is provided, and in the centering device 14, it is detected by an optical sensor etc. that the pulp bale has been fed to the reference position of the centering device 14, and this detection signal causes the pair of holding plates 14a in the centering device 14 to be moved to the centering device 14. By performing an operation of approaching in opposite directions and gripping the pulp bale 1 interposed therebetween, the gripping center and the center of the pulp bale I are aligned. In this case, by arranging the pair of restraining plates a parallel to each other along the transport direction, it is possible to correct the case where the direction of the pulp bale 1 is bent with respect to the transport direction. In addition, it is preferable that the unpacking work conveyor 13 is a roller conveyor, for example, and that it can be operated independently of the connected conveyor 12 in order to control the following steps. [Measurement process] As shown in FIG. 5, the measurement part (E) is provided so as to be located between the posture correction part (D) and the wire cutting part (E) or the wire removal part (G). , measurement in the transport direction and measurement in the width direction are performed. The measuring means (measuring device) 16 in the transfer direction is operated, for example, following the centering operation by the centering device port described above, and is provided on the downstream side of the centering device H. As shown in FIGS. 1 and 5, the measuring means 16 in the transfer direction includes a protruding roller 16s provided on a part of the unpacking conveyor 13, and a rotation amount detection device rotated by the protruding roller 16M. Rotary encoder +
6b, and the unpacking operation control section 15,
The protruding roller 16a protrudes upward from the conveyor surface in the middle of the unpacking conveyor 13, moves downward when the load of the pulp bale 1 is applied, and moves upward when the load of the pulp bale l is released. The rotation amount detection rotary encoder 16b is set to move to the protruding roller I6! The detection signal is transmitted to the unpacking operation control unit 15 and used as control data for the following steps. The measuring means 16 in the width direction is attached, for example, to the part of the pair of restraining plates 41 at the opening of the centering device, and includes an encoder (which detects the amount of linear movement or rotation) that operates in conjunction with the movement of the pair of restraining plates +41. Encoder with functions)
is provided, and the output signal of the encoder is transmitted and stored in the aforementioned unpacking operation control section 1s, and is used as control data for the unpacking operation of the pulp bale 1 in subsequent steps. [Wire cutting and removal process] The wire cutting and removal process includes a wire detection process (wire detection part), a wire cutting process (wire cutting part), a wire drawing process (wire drawing part), and a pulp bale turning process (swivel part). It has a process that combines
The wire cutting machine 17 and the wire pulling machine 18 are both equipped with a wire detecting means 19, and the wire cutting machine 17 and the wire pulling machine 18 are partially similar in structure. As a technical example, (i) (
ijXv), but in addition to these basic techniques, various improvements have been made in each part as described below. <Position of pulp bale subject to wire removal> By measuring the dimension l of the pulp bale 1 in the transport direction using the measuring means 16 described above, data of the dimension α is stored in the unpacking operation control unit 13. shall be taken as a thing. On the other hand, measuring means 16
The separation distance L (see Fig. 5) between the wire cutting and removing device (general term for the wire cutting machine 17, wire pulling machine 18, etc.) is specific to the unpacking work line, and is set regardless of the dimensions of the pulp bale 1. Since the distance is constant, the measuring means 16 detects the tip position of the pulp bale 1 and then stops the unpacking conveyor 13 at a timing when the movement amount of the unpacking conveyor 13 is L+l/2. control. By performing such control, the center position of the pulp bale l can be adjusted by the wire cutting machine 17 and the wire drawing machine 1.
The reference center position of 8 is set. The reference center position and the rotation center position of the turner 20 are set to match. <Settings of wire detection means> The wire cutting machine 17 and the wire pulling machine 18 used in the wire cutting and removal process have the above-mentioned related technology example (V).
According to t; a wire detection means (for example, a magnetic sensor) 9 is provided, but in addition to this technique, the wire detection means 19 is used to drive the unpacking conveyor 13 in the transport direction and to reciprocate opposite the conveyor. The drive is a servo motor 19!
+9b is activated to move the wire detection means 19 toward the pulp bale 1 above the turner 20;
The unpacking operation control unit 15 detects a change in the torque of the servo motor 19b due to the pressure caused by the contact and stops the unpacking operation. Further, after the wire detection means 19 contacts the surface of the pulp bale l, the torque of the servo motor +9b is similarly detected and the contact pressure is maintained constant. Further, the wire detection means 19 is connected to the unpacking work conveyor 1.
A pair of sensor parts 1 spaced apart in the transfer direction on both sides of 3.
As shown in FIG. 8, the interval between the sensor parts 19c is set appropriately depending on the size of the pulp bale 1, the interval between the binding wires IC, etc., and is approximately the same as that of the pulp bale l. The process degree is several minutes of the length dimension. <Scanning of the wire detection means> With respect to the pulp bale 1 on the turner 20, the wire detection means 19 is approached from both sides in opposite directions, and the wire detection means 19 is brought into contact with the surface of the pulp bale 1 with a constant pressure. While holding this, the wire detecting means 19 is moved in parallel in the transport direction of the unpacking conveyor 13 by the servo motor 91 to detect the position of the binding wire 1c of the pulp bell l. As shown in FIG. 10, the wires lc binding the pulp bale 1 are located at two locations on each side.If the wire detecting means 19 is moved by the dimension α of the pulp bale 1, the normal case In this case, two wires are detected. Therefore, when the wire ICs on both sides are bundled in parallel to each other and have the same length 6, when the wire on one side is detected, the wire on the other side is also detected at the same time. However, when wires on one side are detected, wires on the other side are not detected at about the same time. Considering this case, the following processing is performed. In response to the wire detection signal from one wire detection means 19, the scanning speed of the wire detection means 19 on the side where the wire has been detected is made relatively low, and the wire detection means 19 on the side where the wire has been detected is made to relatively slow down and stopped at the center of the pair of sensor sections 19c in the scanning direction. Further, the other wire detection means 19 on the side where wire detection is not performed continues to perform wire detection. In this case, the operating range of the undetected wire detection means 19 is half the distance between the pair of sensor sections 1gC in the scanning direction. If the wire on the other side is detected within this interval, according to one wire detection means ■9,
It is stopped at the center position between the pair of sensor parts 19c. These two-stage scans are performed by driving the servo motor 19a, and in particular, a low-speed scan is performed after wire detection to facilitate control of the stop position and braking. <Processing when wires are not detected by scanning When wires are detected by scanning on both sides of the pulp bale l, if wires are detected only on one side,
The pulp bale 1 is lifted up by the turner 20 to change its vertical position, and the wire 1c is detected again. There are supposed to be two wire ICs on the left and right sides that bind the pulp bales l, but for example, when the wires lc are biting into the wrapping paper of the pulp bale 1,・When the wire LC is hidden behind the lb, the detection of the wire lc may not be performed properly. Therefore, by changing the wire detection position in the vertical direction and repeating the detection, the wire detection is ensured. It is something. Cutting of Position Detection Wire> The wire 1c whose position has been detected is cut by the wire cutting machine 17 of the known related art described above. Pulling out the cut wire> The opposite side of the wire 1c to be cut by the wire cutting machine 17 is gripped by the clamp member 18♂ of the wire drawing machine 18, and upon receiving the wire cutting completion signal, the servo motor +8b is
The wire is pulled out using torque control. When the wire IC is pulled out by the clamp member 18a, if the torque increases significantly due to the pulling out, for example, the wire pulling machine 18 may fail to cut the wire.
is activated, by implementing torque control using the servo motor +gb, it is detected that the torque increases significantly during the pulling operation, and the pulling operation is stopped, and the pulp bale 1 is transferred to the unpacking conveyor 13. This can prevent accidents such as being accidentally dragged down. As a countermeasure in this case, as shown in FIG. 9, the clamping member 181 in the wire pulling machine 18 is equipped with a shearing blade section that cuts the wire lc when it is gripped, so that the wire is not cut. Or, if the pulling resistance is abnormally large, a significant increase in the torque of the servo motor 18b is detected and the pulling is stopped, and the shearing blade of the clamp member 18m deepens the intersection to tighten the wire. This is to put Ic in a disconnected state. That is, as shown in FIG. 9(A), the clamp member 18a is brought close to the wire 1c in an open state, and as shown in FIG. 9(B), the clamp member 18a is brought close to the wire 1c. By closing 8 &, the wire can be pulled out, as shown in Figure 9 (
As shown in C), the wire 1c is cut by further deepening the intersection, and is installed in the wire cutting machine 17 and the wire pulling machine 18, respectively. In addition, even if the wire 1c is left without being pulled out, if both sides of the wire 1c are cut, the wrapping paper 1i and 1b covered from above and below can be removed, and the wrapping paper removal described below In the process, the wire 1c is removed together with the suction wrapping paper. <Wire Detection, Cutting, and Removal> As shown in FIG. Regarding 1c, the above-described scanning of the wire detection means 19, cutting of the position detection wire, pulling out of the cutting wire, etc. are performed,
Next, with the turner turned 90 degrees, similar wire detection, cutting, and pulling steps are performed on other sides of the pulp bale I. [Wire shredding process] By the operation of the wire drawing machine 18, the pulp bale 1
The wire lc pulled out from the removal wire shredding device 2
1, it is shredded into short pieces and processed. The removal wire shredding device 21 includes an air cylinder mechanism 21.
1, and a pair of pinch rolls 21 whose vertical spacing is changed by the air cylinder mechanism 21a and for pulling out the wire lc in the horizontal direction away from the unpacking conveyor 13.
b, a vertical movable cutter 21c for finely cutting the wire 1c held by the pair of pinch rolls 2To, and a wire 1 between the pair of pinch rolls 21h.
A useless wire passage detection means to detect whether or not c exists! 1d, and a wire lc located near the pair of pinch rolls Hb and pulled out by the wire pulling machine 18.
The pinch roll 21b1, the wire passage detection means 21d1, the guide 21e, etc. are set to have approximately the same width dimension. The pair of pinch rolls 21b vertically pinch the wire 1c pulled out in the horizontal direction perpendicular to the conveyor transfer direction, and clamp the wire 1c in the wire pulling machine 18.
8! The released wire lc is subsequently moved away from the unpacking conveyor 13,
Vertical moving cutter 2! c is for cutting the released wire lc into pieces, for example, into lengths of about 2001 mm at the released end of the pinch roll Hb. Also, wire passage detection means! 1d is, for example, an optical sensor, a magnetic sensor, etc., which detects the presence of the wire 1c passing between the upper and lower pinch rolls Hb, and transmits a detection signal to the unpacking operation control section 15, Performs the following controls. That is, the wire detection means 19 activated in the wire cutting and removal process detects that the wire has been pulled out after cutting and is being held between the pinch rolls 21b, and the series of wires 1c is Assuming that the detection, cutting, and pulling operations have been completed, detection of the next wire IC in the wire cutting and removal process is started. With these settings, wire 1
It is possible to prevent an accident in which the wire 1c is pulled out without being cut due to a mistake in cutting the wire 1c or the generation of an erroneous signal due to electromagnetic or radio wave interference. Furthermore, the comb-shaped guide 21e is connected to the pinch roll 21b.
By passing the wire Ic through the comb-shaped guide 21e, which is provided in the middle of the movement path of the wire Ic, it is possible to prevent the wire Ic from slipping, to make it possible to pull it out in a straight line, and to prevent the wire 1c from bending. If it is attached, it can be corrected to a shape close to a straight line by passing it between the comb teeth. Therefore, the pulp bale 1 is less affected by the bending caused when bundling it, and troubles in the wire cutting operation can be eliminated. Note that the shredded wire 1c is dropped onto a conveyor and stored in a waste box or the like. C Wrapping Paper Removal Step In the wire cutting and removal step, all the wires 1c hanging on the pulp bale 1 are cut and removed, and the wrapping paper 1 is attached to the pulp from above and below!・The pulp bale 1, which is simply covered with 1b, is moved by the unpacking conveyor 13 to the position where the wrapping paper removing device 22 and the turning machine 23 are installed (the distance explained in the section of the wire cutting and removing device) The paper is sent to a position set according to the distance control method), and the wrapping paper 1a and 1b are removed to expose the pulp. The wrapping paper removing device 22 and the reversing machine 23 are used to adsorb the wrapping paper Ia and 1b using vacuum pressure and to remove the pulp bale 1.
The above-mentioned related technology example is applicable to the point of vertically inverting the device while holding the device vertically. The wrapping paper removing device 22 is moved by the unpacking conveyor 13.
The pulp bale 1 sent into the working area is detected by the working position sensor 22! The wrapping paper removing device 22 is activated by the detection signal. The suction head Hb of the wrapping paper removing device 22 near the side of the unpacking conveyor 13 moves from the standby position to the center of the unpacking conveyor 13, that is,
Positive direction + above the pulp veil 1: Turns and descends from the stopping position directly above the pulp veil 1, and stops when a contact signal with the pulp veil 1 is detected. At the same time as contact signal detection,
The vacuum valve in the communication path with the vacuum generator is opened, and the inside of the plurality of vacuum suction pads 22c in the suction head 22b is in a vacuum state, and a strong suction force is generated to remove the wrapping paper in the upper half of the pulp bale 1. Suction. In this vacuum suction operation, the vacuum pressure of each suction pad Nc during suction operation is detected at some time after the start of suction operation, and if there is a case where the vacuum decrease is large, the vacuum valve of the corresponding communication path is closed. The vacuum pressure of the other suction pads 22e is increased, and the wrapping paper 1 is
Vacuum suction of 1·lb is performed. Therefore, even if some of the plurality of suction pads 22c are in a suction failure state, the wrapping paper suction operation can be performed normally. In addition, when a plurality of suction pads Hc are brought close to the wrapping paper 1a and 1b of the pulp bale 1 from which the wire IC has been removed by operating a fluid pressure actuator, the suction head 22b is operated by the actuator to adsorb the paper. At the beginning of the descent of the head 22b, the head 22b descends at high speed, and in the later stages of the descent, the operating fluid amount of the actuator is adjusted, and the suction pad Hc is gently moved to the wrapping paper 1 of the pulp bale 1 in a decelerated state. - Contacting Ib is performed. This setting prevents the wrapping papers 1a-Ib from being inadvertently damaged and resulting in poor suction. Next, when the suction head 22b is raised, the suction wrapping paper 11.Ib is pulled away from the pulp bale 1, and after the suction head 22b reaches its upper limit, it is rotated in the opposite direction and moved to the unpacking conveyor. 13 positions away from each other, wrapping paper 1!・The lb receiver is guided to the take-up position, and the vacuum suction pad 22 is closed by closing the vacuum valve of the communication path at this position.
The wrapping paper 11.Ib that was adsorbed in step c is dropped. In parallel with the turning movement of these wrapping papers 11 and 1b, the carcass 23 is activated, and one pair of forks 23a provided on the upper and lower sides grasp the pulp bale 1 from above and below. While holding the bale l, rotate it 180 degrees. Wrapping papers 1a, 1b and tabs in the inverted pulp bale], the lower half of the wrapping paper 1b is removed by repeating the same operation as the upper half of the wrapping paper 1a. As a result, the pulp is completely exposed and the unpacking operation is completed. In addition, the reversing machine 23 is provided with a pair of work position sensors 22a, which are spaced apart from each other in accordance with the length of the pulp bale 1 in the conveyor transport direction.
The pair of position sensors 221 are set so that the reversal a23 can be operated when the pulp bale 1 is present in the range of the working position sensor 221. If the pulp bale l is not set within the interval of the sensor 22a, the operation of the reversing machine 23 is stopped. 5. With these settings, the position of the pulp bale l is
Only when the pulp bale l is located in the center, the fork 23a grips the pulp bale l and inverts it, thereby preventing the pulp bale l from being gripped in a so-called cantilevered state. [Later steps] The wrapping paper removal step is connected to each subsequent step. When the unpacking work is completed, the exposed state and the sales valve are transferred from the traverse conveyor 24 to the storage conveyor 25.
The materials are transported to the storage conveyor 24, where they are managed and stored by material type and brand, and are transferred from the storage conveyor 24 to the traverse conveyor 25 according to the blending ratio and blending ratio by brand according to instructions from the pulper 26. A certain amount of pulp is taken out and put into the tray 26. In addition, in the wrapping paper removal step and each of the subsequent steps, a pulper 26 may be installed at a position where the wrapping papers 1 & 1b fall, and the dropped wrapping papers 11 & 1b may be continuously slurried. In the pulp unpacking means, method, and apparatus of one embodiment described so far, the following embodiment can be adopted. i. In the appearance correction section (d), the reference section is formed by an arbitrary member projecting upward from the transfer surface of the connecting conveyor. 0. On the unpacking work conveyor, the unpacking work control unit and various sensors automatically confirm that there is no preceding pulp bale in the next process, and the pulp bales are sequentially advanced one stage (- process) at a time. Make settings. On the stone and unpacking conveyor, a temporary storage section (stagnation section) for pulp bales is installed at the delimitation point of the process, and the next pulp bale is placed on standby. - Unpacking by driving the pulp bale step by step. iv. The wire detection means is constituted by non-contact detection means such as optical pattern recognition means and color identification means. j Effects of the Invention According to the pulp unpacking method and apparatus according to the present invention, the following effects are achieved. (A) According to the pulp unpacking method according to the first invention, the first step of the unpacking work step and 1. By moving the pulp bale in the opposite direction, it hits the reference part and corrects the posture when the pulp bale is tilted with respect to the transport direction. can be sent downstream to accurately correct positional deviations in alignment with the center in the width direction during the centering process. (2) In the wire detection step, the scanning operation of the wire detection means is facilitated by aligning the side surface of the pulp bale with the transport direction, thereby reducing malfunctions during wire detection. (B) According to the pulp unpacking device according to the second invention, the first
In addition to the effects of the invention, since a reference portion is provided at the rear of the upstream conveyor at the conveyor joint, separation control of the conveyor drive system can be easily switched. (C) According to the pulp unpacking method according to the third invention, the dimensions in the transport direction or the width direction are measured after correcting the orientation of the pulp bale to be transported horizontally, so that accurate dimension measurement is possible. In addition, the measured data can be used for subsequent unpacking work, making it easier to automate each process. (D) According to the pulp unpacking device according to the fourth invention, a measuring means for measuring the length of the pulp bale in the transport direction is provided between the centering device and the wire cutting and removing device downstream thereof. Therefore, ■ After setting the pulp bale at the center of the transfer and correcting its orientation, the length of the pulp bale can be adjusted without causing any deviation in orientation during the short distance it is sent to the wire cutting and removal device. It can be measured. ■It is possible to accurately measure the dimensions of the pulp bale just before it is sent to the wire cutting and removing device, and the measured data can be used for subsequent wire detection, etc., making it easier to automate each process. Can be done. . (E) According to the pulp unpacking method according to the fifth invention, a part of the conveyor receives the weight of the pulp bale, so that
Since the measuring device is operated, it is possible to easily measure the length of the pulp bale passing over the conveyor by using a part of the conveyor. ■Since the measuring device can be installed at any location, automation can be easily implemented by using the measured data in subsequent unpacking operations in each downstream process. (F) In the pulp unpacking device according to the sixth aspect of the invention, since the amount of rotation is obtained by passing the pulp bale, it is possible to easily convert the dimensions of the pulp bale in the transport direction. (G) The pulp unpacking device according to the seventh invention is the same as the pulp unpacking device according to the sixth invention by adding means for detecting the width dimension of the pulp bag +1 during transportation. ■In addition to the effect of the sixth invention, the width dimension can be measured without stopping the transport of the pulp τ'' pearls. ■Data on both vertical and horizontal dimensions of the pulp bale can be used for subsequent unpacking work. (H) The pulp unpacking device according to the eighth invention detects the distance or the amount of movement between the pair of holding plates of the centering device. Therefore, the pulp bale can be accurately detected in the width direction at the same time as the centering device operates. Since the positional relationship is related, it is possible to accurately stop and set the pulp bale at the target reference center position of the wire cutting and removing device, and improve the subsequent wire cutting and removing workability. (J) Tenth In the pulp unpacking method according to the invention, if the binding wire cannot be detected in the scanning operation for wire detection, the wire is detected again by changing the vertical position of the pulp bale. Even if there are places where the wires are digging into the pulp bale or hidden behind wrapping paper, reducing detection sensitivity, the system will not automatically switch to detecting the wires at other positions. This enables highly accurate wire detection and improves the continuous operation of the wire cutting and removal device. (K) In the pulp unpacking device according to the eleventh invention, in the scanning operation when detecting the wire, If the binding wire is not detected normally, the wire detection position is changed by raising and lowering the pulp bale by operating the turner, and the wire is detected again. In addition to obtaining the same effect as the 90-degree turn of the turner, the same wire detection can be performed on each side of the pulp bale, further improving the continuous operation of the wire cutting and removing device. (L) The unpacking method according to the twelfth invention operates a pair of wire detection means spaced apart in the scanning direction when performing a scan at the time of wire detection in cutting and removing the wire, and detects the wire at the front position. When the wire detection means detects a wire, it switches to low-speed scanning, so it is easy to control the setting of the wire cutting and removal means between the pair of wire detection means, and the wire cutting and removal work is ensured. can be implemented. (M) Since the pulp unpacking method according to the thirteenth invention uses a servo motor to scan the pair of detection means in the twelfth invention, in addition to the effects of the twelfth invention, When one of the detection means detects a wire, by changing the rotation of the servo motor, it becomes easy to perform low-speed scanning, and braking and stopping positions can be set accurately. (N) If the wire detection means of the wire cutting machine and the wire drawing machine according to invention I are scanned in the same direction, and the wire detection means are not scanned at almost the same time, non-detection within the permissible range occurs. Since the sensor operates on the side, it is possible to guarantee errors in the wire binding state, and it is possible to avoid erroneous operation due to unnecessarily expanding the wire detection range. (0) In the pulp unpacking method according to the fifteenth invention, the wire detection means starts scanning from one end of the left and right ends, and if the number of detections in one outbound scan is different, the return scan is performed. It is possible to improve the detection accuracy, and it is also possible to easily detect cases where the binding state of the wires varies. (P) In the pulp unpacking device according to the 16th invention, the wire pulling machine that grips and pulls out the wire on the other side cut by the wire cutting machine with a clamp member performs the wire pulling operation under torque control by a servo motor. In addition, since it is equipped with a means to stop the withdrawal when the torque increases significantly, the wire can be cut without being cut.
When a problem occurs such as the wire pulling machine operating, it is detected that the torque of the servo motor increases significantly and the wire cannot be pulled out. By stopping, it is possible to reduce the causes of trouble such as the pulp bale being dragged down from the unpacking conveyor line with difficulty, and improve the reliability of the unpacking work. (Q) According to the seventeenth invention In the pulp unpacking device, in the drawing machine according to the 16th invention, a shearing blade part is added to the clamp member for grasping the wire, which deepens the intersection with the wire and cuts the wire when the torque increases sharply during drawing. ■ If the wire pulling machine operates without cutting the wire, stop pulling, cut the wire with the shearing blade of the clamp member, and continue pulp unpacking work. ■As a result of the above, the wires left on the surface of the pulp bale wrapping paper are sent downstream with both sides cut, and can be removed from the pulp together with the wrapping paper when the wrapping paper is adsorbed. As a result, it is possible to avoid wire pulling failure from becoming an obstacle to the pulp unpacking work. Since the detection means is brought close to the surface of the pulp bale by a servo motor, and the contact pressure is detected by controlling the torque of the servo motor, ■The contact timing can be easily set. ■Increase in the contact pressure (S) The pulp unpacking device according to the 19th aspect of the present invention is capable of suppressing damage to the pulp bale and smoothly performing a scan for wire detection. When the wire is pulled out by a moving means, it is passed through a comb-shaped guide, so that ■ Lateral wobbling of the wire being pulled out is suppressed and the wire can be pulled out in a straight line.■ There is no bend in the wire. If the pulp bale is crooked, it can be corrected to a nearly straight shape by passing it between the comb teeth to improve handling. (T) The unpacking method according to the 20th invention When removing wrapping paper by vacuum suction using multiple suction pads, the vacuum pressure at the time of suction operation is detected at intervals, and if there is a suction pad with a large vacuum drop, that vacuum flow path is removed. ■ Even if a part of the wrapping paper on top of the pulp veil is damaged and the vacuum pressure does not increase, other suction pads will be able to absorb the wrapping paper. The pad allows wrapping paper suction work to be carried out without any hindrance. ■Even if some of the pads are damaged or a foreign object is present in the suction area of the pad, suction work can be continued by suctioning with other pads. (U) In the pulp unpacking method according to the twenty-first invention, when the wrapping paper of a pulp bale is removed by vacuum suction using a plurality of suction pads, the suction pads are brought close to the pulp bale by actuation of a fluid pressure actuator, and During the process up to suction, the approach speed is adjusted depending on the amount of operating fluid of the actuator, and the suction pad is brought into contact with the pal/veil in a decelerated state. ■ The suction bath IJ is gently contacted with the wrapping paper. By doing so, it is possible to reduce the impact upon contact and prevent damage to the wrapping paper. (2) By gently bringing the suction pad into contact with the suction pad, the pulp veil can be prevented from shifting and the wrapping paper removal work can be carried out smoothly. (2) The above allows the plurality of suction pads to be evenly adsorbed onto the wrapping paper. (V) The pulp unpacking device according to the 22nd invention includes means for adsorbing and removing the wrapping paper located above the pulp/bale using vacuum pressure, and corresponds to the length dimension of the pulp bale in the conveyor transport direction. a pair of position sensors whose spacing is set by
The pair of position sensors detects the presence of a pulp bale because the device is equipped with means for flipping the pulp bale upside down while gripping a portion near the distance when a pulp bale is present within the range of the position sensor. Then, only when the pulp bale is fed into the operating range of the reversing machine, the reversing machine turns the pulp bale upside down.If the position of the pulp bale shifts (G), the reversing machine Since the operation is restricted, the pulp bale is not turned over correctly,
Accidents such as being turned over in a cantilevered state can be prevented. (W) The pulp unpacking device according to the 23rd invention measures the dimensions of the pulp bales during transportation and sorts the pulp bales by changing the release position of the wrapping paper based on the measurement results. Wrapping paper can be sorted by source and reused.

[Brief explanation of the drawing]

Figures 1 to 9 show an embodiment of the pulp unpacking method and apparatus according to the present invention. 3 is a front view of the vertical separation section, FIG. 4 is a plan view of the posture correction section, measuring section, and wire cutting/removal section, FIG. 5 is a front view of the section shown in FIG. 4, and FIG. 7 is a front view of the wrapping paper removing section, FIG. 8 is a plan view of the wire detection section in the wire cutting and removing section, and FIG. 9 (A) to C) are the clamp members. A partial plan view, FIG. 1Q, is a perspective view of the pulp bale before unpacking to which the present invention is applied. A: Load receiving part, Opening: Vertical separation part, C: Transfer direction separation part, 2: Posture correction part, H: ...Measurement section, G...Wire cutting section, G...Wire pulling section, CH...Wrapping paper removal section, Su...Post-processing section , 1...Pulp Veil, 1!・LB...Wrapping paper, LC...Wire, 1G...Conveyor for receiving cargo, 11...Unstacker, 11 Hatake...Conveyor Part, 11b...Gripping part, 11c...Lift part, +1d...Pulp bale passage detection means, IIe
...Reference part, 12...Connection conveyor, 13...Conveyor for unpacking work, 14...
- Centering device, 14M... Holding plate, 15... Control unit for unpacking work, 16... Measuring means (measuring device), 16a...
... Protruding roller, +6b ... Rotary encoder for detecting rotation amount, 17 ... Wire cutting machine, 18 ... Wire pulling machine, 18a ... Clamp Members: +Rb... Servo motor, 19... Wire detection section (wire detection means), 1
9a・+ob... Servo motor, 19c...
...Sensor part, 20...Turner 21...Removal wire shredding device, 21 Nin...
...Air cylinder mechanism, 21b...Pinch roll, 21c...Vertical movement cutter, 21d...Wire passage detection means, 21e...
. . . Guide, 22 . . . Wrapping paper removal device, 22 & . . . Pair of working position sensors, 226.
...Suction head, 22c...Suction pad, 24...Traverse conveyor, 25...
・Storage conveyor, 26...Pulper

Claims (1)

[Claims] 1. In a pulp unpacking method in which wires binding wrapping paper are cut and removed while the pulp bale is being transported by a conveyor, and the upper and lower wrapping papers are removed by suction, the pulp is transported by a conveyor. A pulp unpacking method characterized in that the bale is retreated at a position upstream of the wire cutting and removing means, the rear part of the pulp bale is brought into contact with a reference part protruding from the conveyor surface, and then the pulp bale is transferred again and sent to the wire cutting and removing means. . 2. While the pulp bales are being transported by an unpacking conveyor, the wires that bind the wrapping paper are cut and removed, and the upper and lower wrapping papers are suctioned off. A reference section is placed above the conveyor surface of the unpacking conveyor on the downstream side of the connected conveyor that takes over to the unpacking conveyor and adjusts its height. The pulp dismantling method is characterized in that an unpacking operation control unit is connected to the pulp bale for retracting the pulp bale until it hits the reference part at an upstream position of the removing means and then transporting the pulp bale again to the wire cutting and removing means. Packing equipment. 3. It is characterized by comprising a step of correcting the posture of the pulp bale to be transferred horizontally, and a step of measuring the dimension of the pulp bale in the transfer direction or the width direction after the direction is corrected by the posture correction step. How to unpack pulp. 4. A centering device that adjusts the position of the pulp bale on the conveyor to the center of gripping by gripping it from both sides;
A wire cutting and removing device located downstream thereof cuts and removes the binding wire of the pulp bale, and a length dimension of the pulp bale in the conveying direction is measured between the centering device and the wire cutting and removing device. Pulp unpacking equipment equipped with a measuring device. 5. When a part of the conveyor receives the load of the pulp bale, the measuring means is operated, and when the part of the conveyor is in a load-released state, the measuring means is stopped, and the pulp bale is determined by the amount of movement of the conveyor during that time. A pulp unpacking method comprising the step of measuring the length in the transport direction. 6. The pulp unpacking device according to claim 4, wherein the measuring device includes means for detecting the amount of rotation of a roller that rotates as the pulp bale passes. 7. The pulp unpacking device according to claim 4, wherein the measuring device includes means for detecting the width dimension of the pulp bale during transportation. 8. The pulp unpacking device according to claim 4, wherein the centering device includes a pair of holding plates for holding the pulp bale in the width direction, and means for detecting the distance or movement amount of the pair of holding means. 9. The wire cutting and removing device is equipped with a measuring means and a wire cutting and removing device. A pulp unpacking device comprising a control means for stopping a pulp bale when the amount of transfer is equal to the separation distance from a center position plus half the length of the pulp bale in the transfer direction. 10. When the pulp bale sent in for wire cutting and removal is moved in parallel in the transport direction of the conveyor to detect the position of the binding wire of the pulp bale, and the wire is not detected due to the parallel movement. The pulp unpacking method includes the step of changing the vertical position and detecting the wire again. 11. A turner that lifts the pulp bale supported on the conveyor and turns it 90 degrees, and a wire that moves parallel to the pulp bale above the turner in the transport direction of the conveyor to detect the position of the binding wire of the pulp bale. A pulp unpacking device comprising a detection means and a control means for changing the vertical position of the turner and detecting the wire again when the wire is not detected due to parallel movement. 12. A step of detecting the position of the binding wire of the pulp bale by scanning a pair of wire detection means spaced apart in the direction of conveyance by the conveyor in parallel to the direction of conveyance, and a step of detecting the wire binding wire by the front wire detection means at a relatively low speed. A pulp unpacking method comprising the steps of switching to scanning and stopping between a pair of wire detection means, and removing the wire at the stopping position. 13. The pulp unpacking method according to claim 12, wherein the scanning of the pair of detection means is performed by a servo motor. 14. While transporting the pulp bale by the conveyor,
In addition to cutting and removing the wires that bind the wrapping paper,
In the pulp unpacking method that suction removes the upper and lower wrapping paper,
The wire detecting means of the wire cutting machine and the wire pulling machine are scanned in the same direction, and if the wire detecting means do not operate at almost the same time, the operating range of the wire detecting means located on the side where no wire is detected is expanded and the tolerance is increased. A pulp unpacking method characterized by activating a wire puller when a wire is detected within a range. 15. While transporting the pulp bale by conveyor,
In addition to cutting and removing the wires that bind the wrapping paper,
In the pulp unpacking method that suction removes the upper and lower wrapping paper,
The wire detection means of the wire cutting machine and the wire pulling machine start scanning in the same direction from one end of the left and right ends of the pulp bale, and if the number of wires detected in one outgoing scan differs from the set number of wires, the number of wires detected in the return pass is different. A pulp unpacking method characterized by detecting and operating a wire cutting machine and a wire pulling machine. 16. A wire cutting machine that cuts the wire on one side of the pulp bale, and a wire drawing machine that grasps and pulls out the wire on the other side cut by the wire cutting machine with a clamp member, the wire drawing machine A pulp unpacking device, characterized in that the wire pulling operation is performed by torque control using a servo motor, and a means is provided for stopping the wire pulling when the torque increases significantly. 17. The pulp unpacking device according to claim 16, wherein the clamp member for gripping the wire is provided with a shearing blade portion that cuts the wire when the torque increases sharply during extraction. 18. A step of driving the wire detection means in the wire removal device by a servo motor toward the pulp bale, a step of detecting the contact pressure with the torque of the servo motor, and a step of starting a scan for wire detection after detecting the contact torque. A method for unpacking pulp, comprising: 19. A pulp dismantling device in which the wire drawing machine is equipped with a moving means for drawing out the wire in a horizontal direction perpendicular to the conveyor transport direction, and a comb-shaped guide provided in the middle of the moving means to limit side slipping through the wire. Packing equipment. 20. The process of removing the wrapping paper of the pulp bale from which the wire has been removed by vacuum suction using multiple suction pads, the process of detecting the vacuum pressure during suction operation after a period of time, and the process of suction with a large vacuum drop. 1. A pulp unpacking method comprising the step of closing a vacuum channel of a pad and performing suction using another suction pad. 21. A plurality of suction pads are brought close to the wrapping paper of the pulp bale with the wires removed by operating a fluid pressure actuator, and the speed at which the suction pads approach is adjusted by the amount of operating fluid of the actuator, and suction is performed in a decelerated state. A pulp unpacking method characterized by bringing a pad into contact with a pulp bale. 22. A means for adsorbing and removing the wrapping paper located on the upper side of the pulp bale from which the wire has been removed by using vacuum pressure, and a pair of positions with an interval set corresponding to the length dimension of the pulp bale in the conveyor transport direction. A pulp unpacking device comprising: a sensor; and means for flipping the pulp bale upside down while gripping a portion near the interval when the pulp bale is present within the range of the position sensor. 23. In a pulp unpacking device that cuts and removes the wires that bind the wrapping paper while transporting the pulp bale using the unpacking conveyor, and removes the upper and lower wrapping paper by suction, the pulp bale is moved by the unpacking conveyor. A pulp bale comprising: a measuring device that measures the dimensions of a pulp bale midway; and a wrapping paper removing device that sets a suction release position for suctioned wrapping paper based on measuring data of the measuring device. Unpacking equipment.