JP2770955B2 - Pulp unpacking method and equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a pulp unpacking method for cutting and removing a binding wire in a package such as a pulp bale and peeling a wrapping paper to expose contents. It concerns the device.

[Prior Art] Generally, when a pulp manufacturing facility is not installed continuously with a papermaking plant, sheet-like pulp is pulverized by a pulper and then used as a papermaking raw material.

As shown in FIG. 10, the sheet pulp is often provided as a so-called pulp veil 1 wrapped from above and below by wrapping paper 1a and 1b and tied up and down by wires 1c. Therefore, when the pulp is put into the pulp and subjected to the disintegration processing, the work of cutting and removing the bound wire 1c and the work of peeling and removing the wrapping papers 1a and 1b are required.

Conventionally, in order to efficiently supply a large amount of pulp raw material with a large-scale papermaking plant, pulp veil 1
A technology has been developed that automatically unpacks the garbage by using a machine without relying on availability. Examples of related technologies include (i) JP-A-58-134844 (ii) JP-A-61-047330 (iii) JP-A-61-047331 (iv) JP-A-62-109732 Gazette (v) JP-A-62-109733.

Based on these technical examples, the outline of the unpacking operation of the pulp bale will be described.While the pulp bale is transported by the roller conveyor, the pulp bale is sandwiched from both sides by the centering device, and the deviation in the width direction of the roller conveyor is described. After performing the alignment to correct, while cutting the wire with a wire cutting machine, pulling out and removing with a wire removing machine, and then suctioning the wrapping paper using vacuum pressure with a suction machine to peel off, The pulp as the content is exposed.

And by automating the entire unpacking operation,
It has the features of dramatically improving unpacking capacity, saving labor and safety, and automatically improving the efficiency of the entire line by automatically loading pulp in accordance with the operating state of the pulp. ing.

"Problems to be Solved by the Invention" However, even with such a pulp unpacking technique, there is a need for the following improvement.

(A) The pulp bale can be aligned with the center of the width of the conveyor by the centering device during the transfer, but the bend caused by the difference in resistance at the time of loading on the conveyor and the resistance at the time of taking over the conveyor. If pulp veil is also provided, troubles will occur during the operation of the centering device, and the orientation will be insufficiently corrected,
This may hinder the subsequent pulp unpacking operation.

(B) It is advantageous to mount the pulp bale so that the width direction of the conveyor and the longitudinal direction of the pulp bale are aligned with each other, which is advantageous because the mounting length can be shortened. Troubles are likely to occur.

(C) A technique for compensating for the deviation of the device from the detection of the wire to the position setting for the wire cutting or wire extracting operation has not been solved.

(D) If the displacement or bending of the binding wire is not uniform, a detection error is likely to occur.

(E) The binding wire to the pulp bale may be hung in a displaced position, and in the wire cutting and removing process, the wire detection of the wire cutting machine and the wire extracting machine may be performed in an irregular state. In many cases, the above-described conventional techniques do not sufficiently compensate for the deviation.

(F) In the case where the binding wire is largely displaced or bent and comes off the pulp veil, etc.,
Wire detection becomes difficult.

(G) If the wire is pulled out in a state where the wire has not been cut, the pulp bale may be dragged and fall off the conveyor line.

(H) When the size of the supplied pulp veil varies, the unpacking process becomes difficult.

(I) In the case where the drawn wire has a large bend, the wire cutting operation becomes difficult and troubles increase.

(J) Trouble is likely to occur when the wrapping paper cannot be adsorbed or when the operation of the adsorber is insufficient.

(K) When the types of pulp bale are mixed, the unpacking operation of the pulp bale is hindered, and the pulp supply processing to a required portion and the processing of the wrapping paper are likely to be inaccurate.

The present invention is to solve such problems of the prior art. (A) To achieve automation of a series of work lines during the unpacking work process and before and after the unpacking work process.

(B) Improving the unpacking work efficiency.

(C) To reduce the causes of trouble and increase the reliability of unpacking work.

And so on.

"Means for Solving the Problems" The pulp unpacking method and the apparatus according to the present invention is a method applied to each step in a series of work lines in the unpacking work process and the processes before and after the unpacking work process, or It includes devices, equipment, and the like.

The first invention cuts and removes the wire binding the wrapping paper while transferring the pulp bale in the forward direction by the connecting conveyor and the unpacking operation conveyor, and sucks and removes the upper and lower wrapping paper to remove the pulp. A method of unpacking pulp in an exposed state, in which the conveyor is operated in the reverse direction to retreat the pulp bale mounted thereon, and at that time, the reference portion at the rear of the upstream conveyor portion is operated by the lift portion. The pulp bale is pressed against the reference part projecting upward, and the pulp bale is corrected for bending.Then, the pulp bale is transported again in the forward direction and downstream. It is a pulp unpacking method characterized by sending.

The second invention cuts and removes the wire binding the wrapping paper while transferring the pulp bale in the forward direction by the connecting conveyor and the unpacking work conveyor, and removes the pulp by sucking and removing the upper and lower wrapping paper. A pulp unpacking device to be exposed, in the middle of transportation by these conveyors, operating the conveyor in the reverse direction to retreat the loaded pulp bale, and only at that time, the reference of the rear part of the upstream conveyor part The pulp bale, and lift the pulp bale to correct the bending of the posture of the pulp bale. After the pulp bale attitude has been corrected, the unpacking operation control unit that transports the pulp bale in the forward direction and sends it in the downstream direction again is connected. It is a pulp unpack equipment to.

In the first and second aspects of the invention, when the posture of the pulp bale being conveyed by the conveyor is inclined with respect to the conveyance direction, the pulp bale is retreated by abutting the reference portion projecting from the conveyor surface. The posture bending is corrected. Thereafter, the pulp bale is transported again in the forward direction so that the pulp bale is in a correct posture and sent to a downstream process.

In the third invention, after correcting the posture of the pulp veil,
This is a configuration in which a technique for measuring the pulp bale size in the transport direction or the width direction is added to the first invention.

In addition to the operation according to the first aspect of the invention, the pulp bale that is horizontally transferred one by one is correctly corrected in the transfer direction during the transfer, and the pulp bale in the corrected state is corrected. The dimensions are measured and used for the following pulp bale unpacking operations.

A fourth invention is a centering device for correcting the position of the pulp bale on a conveyor from both sides to thereby correct the position of the pulp bale at the center of gripping, and a wire cutting machine and a wire withdrawing device located downstream thereof for cutting and pulling out a binding wire of the pulp bale. And a centering device,
This is a configuration in which a technology in which a measuring device for measuring the length of the pulp bale in the transfer direction is provided between the wire cutting machine and the wire drawing machine is added to the second invention.

In addition to the operation according to the second aspect of the present invention, the pulp bale is moved in the holding direction, that is, in the width direction with respect to the conveyor by the holding operation from both sides by the centering device, and the pulp bale is aligned with the center of the conveyor. At the same time, the transfer direction of the pulp bale in the aligned state is measured, and then the data is used as data for cutting and pulling out the binding wire of the pulp bale in a wire cutting machine and a wire drawing machine.

According to a fifth aspect of the present invention, the measuring means is operated when a part of the conveyor receives the load of the pulp bale, and the measuring means is stopped when the part of the conveyor is in the load released state, and the conveyor is moved during the operation. This is a configuration in which a technology having a step of measuring the length of the pulp veil in the transfer direction based on the amount is added to the first invention or the third invention.

In addition to the operation according to the first or third aspect of the present invention, when a part of the conveyor receives a load accompanying the passage of the front part of the pulp bale, and when a part of the conveyor releases the load accompanying the passage of the rear part of the pulp bale. Depending on the time, the operation of the measuring means is controlled to detect the dimensions of the pulp bale whose posture has been correctly corrected in the transfer direction, and use it as control data for unpacking work of the pulp bale in the subsequent process. is there.

According to a sixth aspect of the present invention, there is provided a configuration in which a technology in which the measuring device includes means for detecting a rotation amount of a roller which rotates when the pulp veil passes therethrough is added to the fourth aspect.

Then, in addition to the operation according to the fourth aspect of the present invention, a roller provided at a location where the pulp veil passes is rotated, and the amount of rotation is detected, thereby converting the pulp veil into a dimension in the transport direction of the pulp veil. Even in this case, the dimensions of the pulp veil with the correct posture are correctly measured.

According to a seventh aspect of the invention, a technique in which the measuring device includes means for detecting the width dimension of the pulp veil during the transfer is added to the fourth aspect.

In addition to the operation according to the fourth aspect of the present invention, the width of the pulp bale is also measured for the pulp bale in the position corrected state, and is used as control data for the unpacking operation of the pulp bale in the subsequent steps. is there.

According to an eighth aspect of the present invention, there is provided a technique in which a centering device is provided with a pair of holding plates for holding a pulp veil in a width direction, and means for detecting an interval or a moving amount of the pair of holding means. This is a configuration that is added to.

In addition to the operation according to the fourth aspect of the present invention, the width dimension of the pulp veil is detected almost simultaneously with the step of correcting the position of the pulp veil, and is used as control data for the unpacking operation of the pulp veil in the subsequent steps. It is.

According to a ninth aspect of the present invention, the pulp is provided with a measuring means, a wire cutting machine, and a wire pulling machine, and the pulp is detected by the wire cutting machine and the wire drawing machine after the tip position of the pulp bale is detected by the measuring means. A control means for stopping the pulp bale when the bale has a transfer amount obtained by adding half of the length of the pulp bale in the transfer direction to the distance from the reference center position of the measuring means and the wire cutting machine and the wire drawing machine. This is a configuration in which the technology provided is added to the fourth, sixth, seventh, or eighth invention.

In addition to the functions according to the inventions described above, the pulp bale transfer means is controlled by using the measuring means, and the passage of the pulp veil tip is detected by the measuring means, and the measuring means, the wire cutting machine and the wire are used. By associating the position of the drawing machine, the pulp bale is stopped at the center of the wire cutting machine and the wire drawing machine.

According to a tenth aspect of the present invention, the pulp bale fed for cutting and pulling out the wire is moved in parallel in the conveying direction of the conveyor to detect the position of the binding wire of the pulp bale, and the wire is moved by the parallel movement. A technique in which a technique of changing the vertical position and detecting a wire again when detection is not performed is added to the first, third, or fifth invention. .

Then, in addition to the operation according to the above inventions, assuming that the detection of the wire binding the pulp veil was not performed normally, the wire detection position is changed vertically to repeat the detection. Accordingly, the detection accuracy of the wire penetrating into the wrapping paper of the pulp veil or the wire hidden behind the wrapping paper is improved by changing the position.

An eleventh invention is directed to a turner that lifts and turns a pulp bale supported on a conveyor by 90 degrees, and a position of a binding wire of the pulp bale that is moved in parallel with the pulp bale on the turner in a conveying direction of the conveyor. The second invention and the fourth invention provide a technique comprising: a wire detecting means for detecting the position of the turner; and a control means for changing the vertical position of the turner and executing the detection of the wire again when the wire is not detected due to the parallel movement. This is a configuration added to the invention, the sixth invention, the seventh invention, the eighth invention, or the ninth invention.

In addition to the operation according to each of the above-mentioned inventions, when the detection of the wire binding the pulp bale is not performed normally, the turner is operated to change the wire detection position in the up-down direction and to change the position. By repeating the detection of the pulp veil, the detection accuracy of the wire is increased, and the same wire detection is performed on each side surface of the pulp veil by turning 90 degrees with a turner.

A twelfth aspect of the present invention is to detect the position of the binding wire of the pulp veil by scanning a pair of wire detecting means separated in the transport direction by the conveyor in parallel with the transport direction,
A step of switching to a low-speed scan at a low scan speed after the wire detection means detects the wire at the front position in the scanning direction to stop the wire cutting machine and the wire pulling machine at the position of the binding wire of the pulp bale; and cutting the wire at the stop position And a step of performing a pulling-out process is added to the first invention, the third invention, the fifth invention, or the tenth invention.

In addition to the operation according to each of the above-described inventions, in the wire detection step, a pair of wire detection units are operated in one-direction scan, and when the wire detection unit at a front position in the scan direction detects a wire, The stop position is controlled by performing low-speed scanning to facilitate the position setting of the wire removing means.

The thirteenth invention has a configuration in which a technique of scanning a pair of detection means by a servomotor is added to the twelfth invention.

Then, in addition to the operation according to the twelfth aspect, the scan is performed by the servo motor, and when the wire detection unit at the front position in the scan direction detects the wire, the rotation of the servo motor is changed to the low-speed scan,
Further, the control of the stop position and the braking are facilitated.

A fourteenth invention is a pulp unpacking method for cutting and pulling out the wire binding the wrapping paper while transferring the pulp bale by a conveyor and sucking and removing the upper and lower wrapping papers. And
The pulp bale is disposed on both sides of the conveyor so as to face each other with the pulp veil being sandwiched, and scanning in the same direction is performed by wire detection means provided on both the wire cutting machine and the wire pulling machine. Starting from the section, when the number of detected wires of the pulp veil obtained by the one-way scan is different from the number of wires binding the pulp veil, the return wire is detected and only when the number of detected wires matches It is a pulp unpacking method characterized by operating a wire cutting machine and a wire drawing machine.

Then, only when the number of detected wires on the wire cutting side and the detected wire number on the wire pulling side match, the wire is cut and pulled out, thereby preventing the uncut wire from being pulled out.

The fifteenth invention includes a wire cutting machine that cuts a wire on one side of the pulp bale, and a wire pulling machine that grips and pulls out the wire on the other side cut by the wire cutting machine with a clamp member. The eleventh aspect of the present invention is the eleventh aspect in which a technology is provided in which the wire puller performs a wire pulling operation by torque control by a servomotor and includes means for stopping the pulling when the torque rise is remarkable.

In addition, in addition to the operation according to the eleventh aspect, when the wire puller is operated in a state where the wire is not cut, the torque control by the servomotor is performed to detect that the torque rise becomes remarkable. Then, the drawing is stopped.

A sixteenth aspect of the present invention is a configuration obtained by adding a technique in which a clamping member for grasping a wire is provided with a shearing blade portion for cutting the wire when the torque at the time of pulling is sharply increased, to the fifteenth aspect. .

In addition, in addition to the operation of the fifteenth aspect, when the wire pulling machine is operated in a state where the wire is not cut, it is detected that the torque of the servomotor is significantly increased, and the pulling is stopped. At the same time, the wire is cut by deepening the intersection of the clamp member with the shearing blade portion. In this case, even if the wire is left without being pulled out, cutting the wire leads to a state where the wrapping paper can be removed.

A seventeenth invention is a wire drawing machine, a moving means for drawing a wire in a horizontal direction orthogonal to a conveyor transfer direction,
A technique provided with a comb-shaped guide provided in the middle of the moving means to limit side slip through a wire, to the eleventh invention, the fifteenth invention or the sixteenth invention. .

And, in addition to the operation according to the above inventions, when the wire is pulled out in the lateral direction, if the wire is passed through a comb-shaped guide, the lateral deflection of the wire is suppressed and the wire can be pulled out linearly, When the wire has a bend, it is corrected to a shape close to a straight line by passing between the comb teeth.

The eighteenth invention is a means for sucking and removing the wrapping paper positioned above the pulp bale from which the wire has been removed using vacuum pressure, and setting an interval corresponding to the length of the pulp bale in the conveyor transfer direction. A technology comprising: a pair of position sensors, and means for turning upside down while gripping a portion near the gap when pulp veil is present in the range of the position sensor. This is a configuration added to the fifteenth invention, the sixteenth invention, or the invention of FIG.

In addition, in addition to the operation according to the above inventions, when the pair of position sensors is detecting the presence of the pulp veil, the reversing means is operated, and one of the pair of position sensors does not detect the pulp veil. In the state, the operation of the reversing means is stopped to prevent the pulp bale from being reversed in the cantilever state.

A nineteenth invention provides a pulp unpacking device that cuts and pulls out the wire binding the wrapping paper while transferring the pulp bale by a conveyer for unpacking, and sucks and removes the upper and lower wrapping paper. And a wrapping paper removing device for setting a suction release position of the wrapping paper sucked based on the measuring data of the pulp bale during the movement of the pulp bale during the movement by the conveyor. The eleventh invention, the fifteenth invention, the sixteenth invention, the seventeenth invention, and the eighteenth invention are added to the configuration.

And, in addition to the effect of each of the above-mentioned inventions, the length and width of the pulp veil differ depending on the destination of the pulp veil,
In consideration of the different types of wrapping paper, the release position of the wrapping paper is changed and classified according to the scale data, and when the wrapping paper is made of the same material as the pulp as the contents, the wrapping paper is reused. is there.

Embodiment An embodiment of the pulp unpacking method and apparatus according to the present invention will be described below with reference to FIGS. 1 to 9.

First, the schematic configuration of the entire pulp unpacking apparatus will be described with reference to FIG. This pulp unpacking device, in the basic configuration,
As related art examples, many of the parts according to (i) to (v) described above are included, but each part is improved. Hereinafter, the unpacking operation process will be described in order.

In FIG. 1, as shown by reference numerals (a) to (i), the schematic steps of the entire pulp unpacking operation are: (a) a load receiving step (load receiving section); and (b) a vertical separating step (vertical separating section). (C) transfer direction separating step (transfer direction separating section), (d) posture correcting step (posture correcting section), (e) measuring step (metering section), and (f) wire cutting step ( (G) wire removing step (wire cutting section), (h) wrapping paper removing step (wrapping paper removing section), and (iii) post-processing step (post-processing section). It is a combination.

[Receiving Step] In the receiving section (a), the pulp bale 1 as shown in FIG. 10, the pulp bale stacked in a plurality of bales, or the pulp bale unit having two stacked rows is processed. As shown in FIG. 1,
It is processed by being mounted on the receiving conveyor 10 by a forklift or the like and sending it downstream.

In this case, when the pulp bales 1 in a stacked state or between the rows are tied in units, the pulp bale 1 is mounted on the receiving conveyor 10 with the tied portion removed. If the pulp veil 1 has different vertical and horizontal dimensions, the longitudinal dimension is set to the receiving conveyor 10.
Although it is optional whether the transfer direction or the width direction is used, the following description will be made on the assumption that the longitudinal direction of the pulp bale 1 is aligned with the width direction of the load receiving conveyor 10 in order to improve the handleability.

In addition, as shown in FIG. 1, when a plurality of units (a plurality of rows) of pulp bale 1 are mounted on the receiving conveyor 10 at one time, the pulp bale 1 is mounted with the direction of the rows aligned with the transfer direction. Note that the receiving conveyor 10 is constituted by a steel slat conveyor or the like.

[Up / Down Separation Step] In the up / down separation section (b), a plurality of pulp bales 1 in a stacked state are removed one by one from the bottom to separate them one by one, and then sent to the next step. I have.

That is, an unstacker 11 is provided downstream of the load receiving conveyor 10 as a vertical separating means, and the unstacker 11 is provided with one row or 2
A row of pulp bale 1 is fed in.

The unstacker 11, as shown in FIGS. 2 and 3,
It has a conveyor section 11a, a grip section 11b, and a lift section 11c, and the conveyor section 11a is made of, for example, a steel slat conveyor. And the conveyor section 11a
When the pulp bale 1 is stacked on the
According to 11b, the second-stage pulp bale 1 from the bottom is held in one or two rows, and the first-stage pulp bale 1 from the bottom is held.
Is lowered vertically by the lift unit 11c to separate the pulp veil 1 in the separated state downstream, and then,
The height of the upper surface of the lift portion 11c is returned to the original position, and the pulp veil 1 that has been gripped is supported. By repeating the same process, the pulp veil 1 in the second and subsequent stages is sequentially sent out to the next process.

[Transfer Direction Separation Step] In the transfer direction separation unit (c), the pulp bale 1 separated vertically in the unstacker 11 is separated in the transfer direction, and the conveyor speed of the next stage is relatively increased (for example, By increasing the transfer speed of the connecting conveyor 12 that takes over the pulp bale 1 downstream from the transfer speed of the conveyor section 11a of the unstacker 11, the transfer portion of the conveyor has a plurality of rows according to the speed difference. Spacing of pulp veil 1 was implemented, and unstacker
From 11, the state where the pulp veil 1 is in contact with the transfer direction,
It is prevented that two or more pieces are continuously sent to a process after the posture correcting process.

The connecting conveyor 12 is made of, for example, a steel slat conveyor, and has a conveyor section 11a.
Are controlled independently of each other.

[Position Correction Step] In the posture correction unit (d), the posture of the pulp bale 1, that is, the work of correcting the inclination with respect to the transfer direction and the centering work of correcting the positional deviation in the width direction are performed. The pulp bale 1 sent out one by one from the unstacker 11 is connected to a conveyer 12 connected to the conveyer 12 at a speed same as that of the pulp bale 1, or a separate unpacking work conveyor 13. Sent to.

The control of the unpacking work conveyor 13, the inclination correcting means provided in the vicinity thereof, the centering device 14, and the components indicated by reference numerals (d) to (h) in FIG. Done. Control unit for unpacking work
15 is composed of, for example, a small computer, a sequencer, or the like.

Correction of the inclination is performed when the pulp bale 1 is transported in a state where bending or displacement at the time of loading in the initial receiving process is left, or when the pulp bale 1 is transferred to the conveyor section of the unstacker 11. At the time of being taken over from 11a to the connection conveyor 12, the separated portion of the rear part of the pulp bale 1 varies to the left and right, and due to a difference in resistance between the left and right, a case in which a horizontal posture is bent or the like occurs,
The pulp bale passage detecting means 11d such as an optical sensor shown in FIG. 1 detects that the rear portion of one pulp bale 1 is separated from the conveyor portion 11a of the unstacker 11, and the driving system of the connection conveyor 12 causes the connection conveyor to operate. 12 is operated in the reverse direction, the loaded pulp veil 1 is retreated as shown by the arrow A in FIG. 3, and the rear part of the pulp veil 1 projects above the conveyor surface of the connecting conveyor 12, For example, the reference portion 11e such as a rear portion of the conveyor portion 11a (a roller of a portion set at an upper position by the operation of the lift portion 11c) is abutted, and the reference portion 11e is correctly set along the width direction of the conveyor. After correcting the bending of the posture by using, the transfer is performed again in the forward direction as shown by the arrow B in FIG. In this case, if the longitudinal direction of the pulp bale 1 is mounted in the width direction of the conveyor, correction at the time of abutting against the reference portion 11e can be performed with relatively high accuracy.

The unpacking work conveyor 13 located downstream of the connecting conveyor 12 has a centering device as shown in FIGS. 1, 4 and 5 according to (i) described above as a related art example. The sensoring device 14 detects that the pulp bale 1 has been fed to the reference position of the centering device 14 by an optical sensor or the like, and detects a pair of holding plates 14a in the centering device 14 by this detection signal. Perform the operation to approach in the opposite direction,
By gripping the pulp veil 1 interposed therebetween, the gripping center and the center of the pulp veil 1 are aligned.

In this case, by arranging the pair of holding plates 14a in parallel along the transport direction, it is possible to correct and correct the case where the direction of the pulp bale 1 is bent with respect to the transport direction.

The unpacking work conveyor 13 is, for example, a roller conveyor, and is preferably operable independently of the connection conveyor 12 in order to control the following steps.

[Measurement process] As shown in Fig. 5, the measure portion (e) is composed of a posture correcting portion (d) and a wire cutting portion (f) or a wire removing portion (g).
And a scale in the transfer direction and a scale in the width direction are provided.

The measuring means (measuring device) 16 in the transfer direction is operated, for example, following the centering operation by the centering device 14 described above, and is provided on the downstream side of the centering device 14. As shown in FIGS. 1 and 5, the measuring means 16 in the transfer direction includes a projecting roller 16a provided on a part of the unpacking work conveyor 13 and a detecting device for detecting a rotation amount rotated by the projecting roller 16a. It comprises a rotary encoder 16b and the unpacking operation control unit 15, and includes a protruding roller 16a.
Moves upward when the load on the pulp veil 1 is applied, and moves upward when the load on the pulp veil 1 is applied, and moves upward when the load on the pulp veil 1 is released. The rotation amount detection rotary encoder 16b is configured to detect the rotation amount of the projecting roller 16a, transmit a detection signal to the unpacking operation control unit 15, and use the detection signal as control data in the following steps. It is.

The width-wise measuring means 16 is, for example, added to a portion of the pair of holding plates 14a in the centering device 14, and operates in conjunction with the movement of the pair of holding plates 14a (a function for detecting a linear movement amount or a rotation amount). The output signal of the encoder is transmitted to and stored in the unpacking operation control unit 15, and is used as control data for the unpacking operation of the pulp bale 1 in the subsequent steps.

[Wire cutting and removing step] The wire cutting and removing step includes a wire detecting step (wire detecting section), a wire cutting step (wire cutting section), a wire extracting step (wire extracting section), and a pulp bale turning step (turning section). In addition, a wire detecting means 19 is provided on both the wire cutting machine 17 and the wire pulling machine 18 and a wire cutting machine.
17 and a part of the wire drawing machine 18 are similar to each other in that they have a similar structure.
Although it is assumed to have a configuration according to (v), in addition to these basic techniques, various improvements have been made in each section as described below.

<Position of Pulp Veil for Wire Removal> The measuring unit 16 described above measures the dimension 1 of the pulp bale 1 in the transport direction, and thereby the unpacking operation control unit 13
It is assumed that data of the dimension 1 is stored in the. on the other hand,
The separation distance L (see FIG. 5) between the measuring means 16 and the wire cutting and removing device (general term for the wire cutting machine 17 and the wire extracting machine 18) is specific to the unpacking operation line, and the pulp bale 1
Is set regardless of the size of the
After detecting the tip position of the pulp veil 1 at 16,
Control is performed to stop the unpacking work conveyor 13 at a timing when the moving amount of the unpacking work conveyor 13 is L + 1/2.

By performing such control, the pulp veil 1
The center position of the wire cutting machine 17 and the wire extracting machine 18
Is set to the reference center position. The reference center position and the rotation center position of the turner 20 are set so as to match.

<Setting of Wire Detecting Means> The wire cutting machine 11 and the wire pulling-out machine 18 used in the wire cutting and removing step are provided with wire detecting means (for example, a magnetic sensor) 19 according to the related art example (v) described above. However, in addition to this technology, the wire detecting means 19 is configured such that the driving in the transfer direction of the unpacking work conveyor 13 and the reciprocating drive facing the conveyor are performed by the operation of the servo motors 19a and 19b, The detection means 19 is approached toward the pulp bale 1 on the turner 20, and the unpacking operation control unit 15 detects a change in torque of the servomotor 19b due to the pressure when the contact is made, and stops.

Further, after the wire detecting means 19 comes into contact with the surface of the pulp veil 1, the torque of the servomotor 19b is similarly detected so that the contact pressure is kept constant.

Further, the wire detecting means 19 is provided on the conveyor 13 for unpacking work.
A pair of sensor sections 19c spaced in the transport direction
Are arranged, as shown in FIG.
The interval between the sensor portions 19c is appropriately set according to the size of the pulp veil 1, the interval between the binding wires 1c, and the like, and is approximately a fraction of the length of the pulp veil 1.

<Scan of Wire Detecting Means> Regarding the pulp veil 1 on the turner 20, the state where the wire detecting means 19 is approached from both sides in the facing direction and the wire detecting means 19 is brought into contact with the surface of the pulp veil 1 at a constant pressure. While holding the wire, the wire detecting means 19 is moved in parallel with the transport direction of the unpacking work conveyor 13 by the servo motor 19a, and the position of the binding wire 1c of the pulp bale 1 is detected.

As shown in FIG. 10, the wire 1c binding the pulp veil 1 is provided at two places on one side, so that the wire detecting means
When the pulp bale 1 is moved by the dimension 1 of the pulp veil 1, two wire detections are normally performed. Therefore, if the wires 1c on both sides are bound in parallel to each other at the same length, when the wire detection on one side is performed, the wire detection on the other side is also performed at the same time.

However, the following processing is performed in consideration of the case where the wire detection on one side is not performed almost simultaneously when the wire detection on the other side is performed.

The scanning speed of the wire detection unit 19 on the side where the wire detection has been performed is made relatively low by a wire detection signal from one of the wire detection units 19, and stopped at the center of the pair of sensor units 19c in the scanning direction. Further, the other wire detecting means 19 on the side where no wire is detected continuously performs wire detection. In this case, the operating range of the wire detection means 19 on the non-detection side is a pair of sensor units in the scanning direction.
The interval of 19c is halved. When the wire detection on the other side is performed within the range of this interval, the detection is stopped at the center position of the interval between the pair of sensor portions 19c according to the one wire detection means 19. These two-stage scans are performed by driving the servo motor 19a. In particular, a low-speed scan is performed after wire detection to facilitate control of a stop position and braking.

<Processing when wire is not detected by scanning> When wire detection is performed by scanning both sides of pulp veil 1 and only one side is detected, the pulp veil 1 is lifted up with the turner 20 and the vertical position is adjusted. Then, the wire 1c is detected again.

The wires 1c binding the pulp veil 1 should be present at two places each on the left and right. For example, when the wire 1c is digging into the wrapping paper of the pulp veil 1, or when the wire 1c is・ When hidden behind 1b, wire 1c may not be detected properly.Therefore, change the wire detector up and down and repeat the detection to ensure wire detection. Things.

<Cutting of Position Detection Wire> The wire 1c whose position has been detected is cut by the wire cutting machine 17 of the related art described above.

<Pulling of the cutting wire> The opposite side of the wire 1c cut by the wire cutting machine 17 is gripped by the clamp member 18a of the wire pulling machine 18, and upon receiving the wire cutting end signal, the wire pulling operation is performed by torque control by the servo motor 18b. Perform

When the wire 1c is pulled out by the clamp member 18a, when the torque rise accompanying the pulling is remarkable, for example, when the wire cutting machine 18 is operated in a state where the wire cutting has failed, by performing the torque control by the servo motor 18b. By detecting that the torque during the pulling-out operation increases significantly, the pulling-out operation is stopped, and the occurrence of an accident in which the pulp bale 1 is accidentally dragged down from the unpacking work conveyor 13 can be prevented.

As a measure in this case, as shown in FIG. 9, the clamp member 18a of the wire pulling machine 18 is provided with a shearing blade portion for cutting the wire 1c at the time of gripping, and the wire is not cut. If the pull-out resistance is abnormally large, it is detected that the torque of the servo motor 18b is significantly increased, and the pull-out is stopped, and the intersection of the clamping member 18a due to the shearing blade portion is deepened. 1c is cut. That is, as shown in FIG.
Is brought close to the wire 1c in an open state, and as shown in FIG. 9 (B), the clamp member 18a is closed to allow the wire to be pulled out, and as shown in FIG. 9 (C), the wire crosses further. By deepening, the wire 1c is cut, and is installed in the wire cutter 17 and the wire puller 18, respectively.

Even if the wire 1c is left without being pulled out, if both sides of the wire 1c are cut, the wrapping paper 1a and 1b overlaid from above and below can be removed, and the wrapping paper removal described later will be performed. In the process, the wire 1c is removed together with the adsorption wrapping paper.

<Wire detection, cutting, and removal> As shown in FIG. 10, when the wire 1c is hung at two places on one side of the pulp veil 1 and a total of eight places, the second wire on one side is provided. For 1c, the above-described scanning of the wire detecting means 19, cutting of the position detecting wire, pulling out of the cutting wire, and the like are performed, and then the turner is turned by 90 degrees, and the other side of the pulp veil 1 is subjected to the same process. Wire detection, cutting, and pulling-out steps are performed.

[Wire Shredding Process] The pulp bale 1 is operated by the operation of the wire drawing machine 18.
The wire 1c pulled out of the wire is cut into short pieces by the removal wire cutting device 21 and processed.

The removing wire shredding device 21 includes an air cylinder mechanism 21a.
The air cylinder mechanism 21a changes the vertical distance, and the pair of pinch rolls 21b for pulling out the wire 1c in the horizontal direction separated from the unpacking work conveyor 13 are sandwiched by the pair of pinch rolls 21b. A vertically moving cutter 21c for finely cutting the wire 1c, a wire passage detecting means 21d for detecting whether the wire 1c exists between the pair of pinch rolls 21b, and a position close to the pair of pinch rolls 21b. Guide for passing the wire 1c drawn out by the wire drawing machine 18
The pinch roll 21b, the wire passage detecting means 21d, the guide 21e, and the like are set to have substantially the same width.

The pair of pinch rolls 21b vertically hold the wire 1c drawn in the horizontal direction orthogonal to the conveyor transfer direction, and continuously release the wire 1c released by the clamp member 18a in the wire drawing machine 18 for unpacking work. The vertically moving cutter 21c cuts the released wire 1c to a length of, for example, about 200 mm at the release end of the pinch roll 21b.

Further, the wire passage detecting means 21d includes the upper and lower pinch rolls 2.
For example, an optical sensor, a magnetic sensor, or the like that detects the presence of the wire 1c that passes while being clamped between 1b, transmits a detection signal to the unpacking operation control unit 15, and performs the following control. That is, it is detected that the detection wire by the wire detection means 19 operated in the wire cutting and removing step is pulled out after cutting and is in a state of being pinched by the pinch roll 21b, and a series of detection of the wire 1c is detected. , And the detection of the next wire 1c in the wire cutting and removing step is started.
If you make such settings, mistakes in cutting wire 1c,
It is possible to prevent the wire 1c from being pulled out without causing the wire 1c to be cut due to the occurrence of an erroneous signal due to an electromagnetic or radio wave interference.

Furthermore, the comb-shaped guide 21e is provided in the middle of the movement path of the wire 1c by the pinch roll 21b, and prevents the side slip by passing the wire 1c through the comb-shaped guide 21e, and linearly. While being able to pull out,
When the wire 1c is bent, the wire 1c is corrected to a shape close to a straight line by passing between the comb teeth. Therefore, the pulp veil 1 is less affected by the bending set when the pulp bale 1 is bound, and the trouble of the wire cutting work can be eliminated.

The shredded wire 1c is dropped on a conveyor and stored in a waste box or the like.

[Wrapping Paper Removing Step] In the wire cutting and removing step, the pulp bale 1 which is hung on the pulp bale 1 and the pulp is simply covered with the wrapping papers 1a and 1b from above and below is removed from the unpacking work conveyor 13. Is sent to the position where the wrapping paper removing device 22 and the reversing machine 23 are installed (the position set according to the separation distance control method described in the section of the wire cutting and removing device), and the wrapping paper 1a and 1b is removed. As a result, the pulp is exposed.

The wrapping paper removing device 22 and the reversing device 23 are the same as those described above in that the wrapping papers 1a and 1b are sucked using vacuum pressure and that the pulp veil 1 is vertically inverted while being held up and down. Technical examples apply.

The pulp bale 1 sent into the working range of the wrapping paper removing device 22 by the unpacking work conveyor 13 is detected by the working position sensor 22a.
Activate 2 The suction head 22b in the wrapping paper removing device 22 near the side of the unpacking operation conveyor 13 is moved from the standby position to the center of the unpacking operation conveyor 13, that is, the pulp bale 1.
, And descends from the stop position immediately above the pulp veil 1 and stops when a contact signal with the pulp veil 1 is detected. Simultaneously with the detection of the contact signal, the vacuum valve in the communication path with the vacuum generator is opened, the inside of the plurality of vacuum suction pads 22c in the suction head 22b is evacuated, and a strong suction force is generated. Suction the upper half of the wrapping paper.

In this vacuum suction operation, the suction pressure of each suction pad 22c is detected at a certain time after the start of the suction operation, and if there is a large vacuum drop, the vacuum valve of the corresponding communication path is closed, The vacuum pressure of the other suction pads 22c is increased, and these suction pads 22c cause the wrapping paper 1a.
-Vacuum suction of 1b is performed. For this reason, even when some of the plurality of suction pads 22c are in a suction failure state, the suction operation of the wrapping paper is normally performed.

When a plurality of suction pads 22c are brought close to the wrapping paper 1a, 1b of the pulp bale 1 from which the wire 1c has been removed by operating a fluid pressure actuator, the suction head 2
2b is performed by the operation of the actuator, and the suction head
At the beginning of the descent of 22b, a fast descent is performed,
In the latter part of the descent, the operating fluid volume of the actuator is adjusted,
In the deceleration state, the suction pad 22c is gently brought into contact with the wrapping paper 1a, 1b of the pulp veil 1. With this setting, it is possible to prevent the packaging papers 1a and 1b from being inadvertently damaged and causing poor suction.

Next, when the suction head 22b is raised, the suction wrapping paper 1a, 1b is separated from the pulp pail 1, and after the suction head 22b reaches the upper limit, the suction wrapping paper 1a, 1b is turned in the reverse direction to operate the unpacking conveyor. Position away from 13, wrapping paper 1a
-The wrapping paper 1a and 1b sucked by the vacuum suction pad 22c is dropped by guiding to the receiving position of 1b and closing the vacuum valve of the communication passage at this position.

In parallel with the turning movement of these wrapping papers 1a and 1b, the reversing machine 23
, The pulp bale 1 is gripped from above and below by four forks 23a provided one by one at the top and bottom, and the pulp bale 1 is rotated by 180 degrees while being held. The wrapping paper 1a, 1b in the inverted pulp bale, that is, the lower half wrapping paper 1b is removed by repeating the same operation as the upper half wrapping paper 1a, so that the pulp is completely exposed, Unpacking is completed.

In addition, in the part of the reversing machine 23, the above-mentioned pair of work position sensors 22a having intervals set in accordance with the length dimension of the pulp bale 1 in the conveyor transfer direction are provided and used, and the pair of position sensors 22a are used. Is set, for example, as an optical sensor, so that when the pulp bale 1 exists in the range of the work position sensor 22a, the reversing machine 23 can be operated, and is set within the range of the interval between the pair of work position sensors 22a. When the position of the pulp bale 1 is not set, the operation of the reversing machine 23 is stopped. With such a setting, the pulp bale 1 is gripped by the fork 23a to be inverted only when the pulp bale 1 is located at the center of the reversing machine 23. This prevents the bail 1 from being gripped.

[Subsequent Steps] The subsequent steps are connected to the wrapping paper removing step. Upon completion of the unpacking operation, the exposed pulp is transferred from the traverse conveyor 24 to the storage conveyor 25, where the pulp is managed and stored for each material type and brand, and a command from the pulpper 26 is issued. Accordingly, a required amount of pulp is taken out from the storage conveyor 24 via the traverse conveyor 25 according to the compounding ratio and the compounding ratio by brand, and is supplied to the pulper 26.

In each of the wrapping paper removal process and the subsequent processes, the pulper 26 is installed at a position where the wrapping papers 1a and 1b fall,
The dropped wrapping papers 1a and 1b can be made into a continuous slurry.

The following embodiments can be adopted in the pulp unpacking means, method and apparatus of one embodiment described so far.

i. In the posture correction part (d), the reference part is formed by any member protruding upward from the transfer surface of the connecting conveyor.

ii. In 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 bale is sequentially moved one stage (one process) at a time. Make settings to postpone.

iii. On the conveyor for unpacking work, a temporary storage section (stagnant section) of pulp bale is installed at the break point of the process, the next pulp bale is kept on standby, and the command of the unpacking work control section, Unpacking by driving the pulp bale one step at a time.

iv. The wire detecting means is constituted by a non-contact detecting means such as an optical pattern recognizing means and a color recognizing means.

[Effects of the Invention] The pulp unpacking method and apparatus according to the present invention have the following effects.

(A) According to the pulp unpacking method according to the first aspect of the invention, as a first step of the unpacking operation step, the pulp bale is moved in the reverse direction to abut against the reference portion, and the pulp bale is moved with respect to the transfer direction. Since the posture is corrected when the pulp bale is inclined, the pulp bale having the correct posture can be sent downstream, and the misalignment to be centered in the width direction in the centering process can be accurately corrected.

In the wire detecting step, the scanning operation of the wire detecting means can be facilitated by adjusting the side surface of the pulp bale to the transfer direction, and the malfunction at the time of detecting the wire can be reduced.

(B) According to the pulp unpacking device according to the second invention, the control unit for unpacking work is connected to the drive system of the conveyor, so that in addition to the function and effect of the first invention, Switching between reverse transfer and forward transfer can be easily performed.

(C) According to the pulp unpacking method of the third invention,
In addition to the technique of the present invention, after the posture of the pulp bale is corrected, the dimension in the transfer direction or the width direction is measured. In addition to the operation and effect of the first invention, accurate dimension measurement is possible. In addition to this, the measured data can be used for the subsequent unpacking operation to facilitate automation of each process.

(D) According to the pulp unpacking device according to the fourth invention,
In addition to the technique of the invention of the above-mentioned invention, since there is provided a measuring means having a length in the transfer direction of the pulp veil between the centering device and the wire cutting machine and the wire drawing machine downstream thereof, In addition to the effect of the invention, the pulp bale is set at the center of transfer, and after correcting the direction, the length of the pulp bale is adjusted during the short distance sent to the wire cutting machine and the wire drawing machine. Can be measured without causing a shift in the position.

The pulp bale on the verge of being sent to the wire cutting machine and wire pulling machine can be measured accurately, and the measured data can be used for subsequent wire detection and the like, facilitating the automation of each process. .

(E) According to the pulp unpacking method according to the fifth invention,
In addition to the technique of the third invention or the third invention, the measuring device is operated by a part of the conveyor receiving the weight of the pulp bale.
In addition to the functions and effects of the invention, the length of the pulp bale passing therethrough can be easily measured by using a part of the conveyor.

The installation location of the measuring instrument becomes optional, and in each process downstream thereof, the measured data is used for the subsequent unpacking operation, and automation can be easily performed.

(F) In the pulp unpacking device according to the sixth invention, in addition to the technology of the fourth invention, the rotation amount can be obtained by passing the pulp bale. In addition, the conversion of the size of the pulp bale in the transfer direction can be easily performed.

(G) The pulp unpacking apparatus according to the seventh aspect of the present invention includes a means for detecting the width dimension of the pulp bale during the transfer in addition to the technique of the fourth aspect. In addition to the functions and effects of the fourth or fourth invention, the width can be measured without stopping the transfer of the pulp veil.

Accurate control or automation of each process can be easily performed by utilizing both the vertical and horizontal dimension data of the pulp bale for subsequent unpacking operations.

(H) The pulp unpacking device according to the eighth invention detects the distance or the amount of movement of the pair of holding plates of the centering device in addition to the technology of the fourth invention. In addition to the functions and effects of the fourth aspect, the widthwise detection of the pulp bale can be accurately performed simultaneously with the operation of the centering device.

(I) A pulp unpacking apparatus according to a ninth invention is a pulp unpacking apparatus according to the fourth, sixth, seventh, or eighth invention, and further includes a measuring means, a wire cutting machine, and a wire. The positional relationship with the drawing machine is related, and in addition to the effects of the second invention or each of the above inventions, the pulp bale is accurately stopped at the target reference center position of the wire cutting machine and the wire drawing machine, It is possible to improve the workability of cutting and pulling out the wire after setting.

(J) The pulp unpacking method according to the tenth invention is a method of unpacking pulp according to the first invention, the third invention, or the fifth invention,
In the scan operation for wire detection, if the binding wire cannot be detected, the pulp bale is moved up and down and the wire is detected again. Therefore, even if the wire is biting into the pulp bale or there is a place where the detection sensitivity is impaired behind the wrapping paper, it is automatically switched to wire detection at another position. In addition, it is possible to detect the wire with high accuracy, and it is possible to improve the continuous operation of the wire cutting machine and the wire pulling machine.

(K) The pulp unpacking device according to the eleventh invention is in addition to the technology of the second invention, the fourth invention, the sixth invention, the seventh invention, the eighth invention or the ninth invention. In the scanning operation for detecting the wire, if the detection of the binding wire is not performed normally, the pulp bale is moved up and down by the operation of the turner to change the wire detection position and detect the wire again. Since it is performed, in addition to the effects of the above inventions,
By turning 90 degrees, the same wire detection can be performed on each side of the pulp bale, and the continuous operability of the wire cutting machine and the wire pulling machine can be further improved.

(L) The unpacking method according to the twelfth invention is similar to the method of the first invention,
In addition to the technique of the fifth, tenth, or tenth invention, a pair of wire detection means spaced apart in the scanning direction is activated when scanning for wire detection at the time of cutting and pulling out a wire. When the wire detection means at the front position in the scanning direction detects the wire,
Since the scan is switched to the low-speed scan, in addition to the functions and effects according to the inventions described above, the control for setting the wire cutter and the wire puller between the pair of wire detectors is easily performed. The pull-out operation can be reliably performed.

(M) In the pulp unpacking method according to the thirteenth invention, in addition to the technique of the twelfth invention, the scanning of the pair of detecting means is performed by a servomotor.
In addition to the functions and effects of the fifth, twelfth or twelfth invention, when the wire detection means at the front position in the scanning direction detects a wire, the rotation of the servomotor is changed to perform low-speed scanning. And the braking and stopping positions can be set accurately.

(N) In the pulp unpacking method according to the fourteenth invention, the wire cutting machine and the wire pulling machine are arranged on both sides of the conveyor so as to face each other with the pulp bale to be transferred therebetween.
Scanning in the same direction is started from the left and right ends of the pulp bale by the wire detection means disposed on both the wire cutting machine and the wire pulling machine, and-the number of detected wires and the pulp bale of the pulp bale obtained by the forward scan. When the number of bound wires is different, the return wire is detected, and the wire cutter and the wire puller are operated only when the detected wire numbers match,
The detection accuracy of the wire can be improved, and the detection when the binding state of the wire varies can be facilitated.

(O) The pulp unpacking device according to the fifteenth invention is, in addition to the technology of the eleventh invention, a wire puller that pulls out the other side of the wire cut by the wire cutter with a clamp member, Since the wire pulling operation is performed by the torque control by the servomotor and the means for stopping the pulling when the torque rise is remarkable is provided,
In addition to the functions and effects of the fourth, sixth, seventh, eighth, ninth and eleventh aspects of the present invention, a wire pulling machine is provided in a state where the wire is not cut. When a malfunction such as the occurrence of a malfunction occurs, it is detected that the torque of the servomotor has increased significantly, and it is determined that the wire cannot be pulled out. It is possible to reduce the occurrence of troubles such as inadvertently dragging and unloading the bale from the unpacking conveyor line, thereby improving the reliability of the unpacking operation.

(P) The pulp unpacking apparatus according to the sixteenth aspect of the present invention, in addition to the technique of the fifteenth aspect, further provides a clamping member for grasping the wire to deepen the intersection with the wire when the torque at the time of pulling out increases sharply. Since the shearing blade portion for cutting the wire by the addition is added, the second invention, the fourth invention, the sixth invention, the seventh invention, the eighth invention, the ninth invention, the eleventh invention or Fifteenth
In addition to the functions and effects of the invention, in the case where the wire pulling machine operates without cutting the wire, the pulling is stopped, the wire is cut by the shearing blade portion of the clamp member, and the pulp unpacking operation is performed. You can continue.

By the above, the wire left on the surface of the wrapping paper of the pulp veil is sent downstream in a cut state, and can be removed from the pulp together with the wrapping paper when the wrapping paper is adsorbed. Leakage can be prevented from hindering the pulp unpacking operation.

(Q) The pulp unpacking device according to the seventeenth invention is characterized in that, in addition to the technology of the eleventh invention, the fifteenth invention or the sixteenth invention, when a wire is pulled out by a moving means in a wire drawing machine, Since the wire is made to pass through a comb-shaped guide, the second invention, the fourth invention,
In addition to the functions and effects of the sixth, seventh, eighth, or ninth invention, or each of the above-described inventions, the wire can be pulled out linearly with the lateral deflection of the wire being pulled out suppressed.

When the wire is bent, by passing between the comb teeth, the shape can be corrected to a shape close to a straight line, and the handleability can be improved.

(R) A pulp unpacking apparatus according to an eighteenth aspect of the present invention is the pulp unpacking apparatus according to the eleventh aspect, the fifteenth aspect, the sixteenth aspect, or the seventeenth aspect, further comprising: Means using a vacuum pressure to remove by adsorption, a pair of position sensors spaced according to the length dimension of the pulp bale in the conveyor transfer direction, and when there is pulp bale in the range of the position sensors Means for reversing the upside-down state while gripping the vicinity of the space, the second invention, the fourth invention, the sixth invention, the seventh invention, and the eighth invention. Or, in addition to the functions and effects of the ninth invention or each of the above-described inventions, the presence of the pair of position sensors pulp bale is detected, and the operation of the reversing machine is performed only when the pulp bale is fed into the operation range of the reversing machine. When you turn the pulp veil upside down In particular, when the position of the pulp bale is shifted, the operation of the reversing machine is restrained, so that an accident such as the pulp bale being correctly inverted and being inverted in a cantilever state can be prevented.

(S) The pulp unpacking device according to the nineteenth invention is a pulp bale in addition to the technology of the eleventh invention, the fifteenth invention, the sixteenth invention, the seventeenth invention or the eighteenth invention. Is measured in the middle of the transfer, and according to the measurement result, the release position of the wrapping paper is changed so as to be divided. Therefore, the second invention, the fourth invention, the sixth invention, the seventh invention, and the eighth invention In addition to the functions and effects of the ninth invention or the respective inventions described above, the wrapping paper can be classified according to the source of the pulp veil, and the pulp veil can be reused.

[Brief description of the drawings]

1 to 9 show an embodiment of the pulp unpacking method and the apparatus according to the present invention. FIG. 1 is a schematic configuration diagram of the entire pulp unpacking apparatus, and FIG. FIG. 3 is a front view of an upper / lower separating unit, FIG. 4 is a plan view of a posture correcting unit, a measuring unit, and a wire cutting and removing unit, and FIG.
FIG. 6 is a front view of FIG. 7, FIG.
FIG. 8 is a front view of the wrapping paper removing section, FIG. 8 is a plan view of the wire detecting section in the wire cutting and removing section, FIGS. 9A to 9C are plan views of the clamp member portion, and FIG. FIG. 2 is a perspective view of a pulp bale before unpacking operation to which is applied. B. Loading receiving part, B. Vertical separating part, C. Transfer direction separating part, D. Posture correcting part, E. Measuring part, F .. Wire cutting part, G .. Wire drawing part, H … Wrapping paper removal section, ri… post-processing section, 1… pulp veil, 1a ・ 1b…
… Wrapping paper, 1c …… wire, 10 …… loading conveyor, 11…
… Unstacker, 11a …… Conveyor part, 11b …… Grip part,
11c ... lift section, 11d ... pulp bale passage detection means,
11e Reference part, 12 Conveyor, 13 Conveyor for unpacking work, 14 Centering device, 14a Holding plate, 15 Control part for unpacking work, 16 Measure means ( Measuring device), 16a: Projecting roller, 16b: Rotary encoder for detecting rotation amount, 17: Wire cutting machine, 18: Wire pulling machine, 18a: Clamping member, 18b: Servo motor, 19 ... Wire detector (wire detector), 19a / 19b
... Servo motor, 19c Sensor part, 20 Turner, 21 Removal wire shredding device, 21a Air cylinder mechanism, 21b Pinch roll, 21c Vertical cutter, 21
d: wire passage detecting means, 21e: guide, 22: wrapping paper removal device, 22a: pair of work position sensors, 22b:
Suction head, 22c ... Suction pad, 24 ... Traverse conveyor, 25 ... Storage conveyor, 26 ... Pulper.

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Satoshi Mamiya 501 Honjuku, Nagaizumi-cho, Sunto-gun, Shizuoka Prefecture Inside Special Paper Manufacturing Co., Ltd. (72) Inventor Kiyoshi Miyajima 3-1-117 Nihonbashi, Chuo-ku, Tokyo Ishikawashima Sangyo (56) References JP-A-52-70690 (JP, A) JP-A-49-126488 (JP, A) JP-A-62-109733 (JP, A) JP-A-57-87098 (JP, A) , U) (58) Field surveyed (Int. Cl. ⁶ , DB name) B65B 69/00 B65G 47/00-69/28

Claims (19)

(57) [Claims] 1. A pulp bale is transported in a forward direction by a connecting conveyor and an unpacking operation conveyor, while cutting and removing the wires binding the wrapping paper, and removing the upper and lower wrapping paper by suction to expose the pulp. A pulp unpacking method to be in a state, in which the conveyor is operated in the reverse direction to retreat the pulp bale mounted thereon, and at that time, the reference portion at the rear of the upstream conveyor portion is moved by the operation of the lift portion. After being raised, the rear part of the pulp bale is abutted against the reference part projecting upward to correct the bending of the posture of the pulp bale, and then the pulp bale is transported in the forward direction again and sent downstream. A pulp unpacking method, characterized in that: 2. While transferring the pulp bale in a forward direction by a connecting conveyor and an unpacking operation conveyor, the pulp is exposed by cutting and removing the wires binding the wrapping paper and suctioning and removing the upper and lower wrapping papers. A pulp unpacking device to be put into a state, in the middle of transportation by these conveyors, the conveyor is operated in the reverse direction to retreat the pulp bale mounted thereon, and only at that time, the rear reference portion in the upstream conveyor portion Is raised to make it protrude above the conveyor surface of the conveyor, and a lift section is arranged to abut the rear of the pulp bale to correct the bending of the pulp bale attitude. After the correction of the pulp bale posture, the unpacking operation control unit that transfers the pulp bale in the forward direction and sends it in the downstream direction again Pulp unpack apparatus according to symptoms. 3. The pulp unpacking method according to claim 1, wherein the pulp bale size in the transfer direction or the width direction is measured after correcting the posture of the pulp bale. 4. A centering device for correcting the position of the pulp bale on the conveyor from both sides to thereby correct the position of the pulp bale at the center of gripping, and a wire cutting machine and a wire pulling machine located downstream thereof for cutting and pulling out the binding wire of the pulp bale. 3. A pulp unpacking device according to claim 2, further comprising: a measuring device for measuring a length of the pulp bale in the transfer direction, between the centering device and the wire cutting machine and the wire drawing machine. apparatus. 5. A measuring means is operated by receiving a load of a pulp bale on a part of the conveyor, and the measuring means is stopped when a part of the conveyor is in a load released state, and the amount of movement of the conveyor during the operation. 4. The pulp unpacking method according to claim 1, further comprising a step of measuring a length of the pulp bale in a transfer direction by using a pulp bale. 6. The pulp unpacking device according to claim 4, wherein the measuring device is provided with means for detecting the amount of rotation of a roller which rotates as the pulp bale passes. 7. The pulp unpacking device according to claim 4, wherein the measuring device is provided with means for detecting the width of the pulp bale during the transfer. 8. The unpacking pulp according to claim 4, wherein the centering device comprises a pair of holding plates for holding the pulp bale in the width direction, and means for detecting a distance or an amount of movement of the pair of holding members. apparatus. 9. A pulp bale is provided with a measuring means, a wire cutting machine, and a wire pulling machine, and the pulp bale is measured by the wire cutting machine and the wire drawing machine after the tip position of the pulp bale is detected by the measuring means. Control means for stopping the pulp bale when the transfer amount is obtained by adding half of the length of the pulp bale in the transfer direction to the separation distance from the reference center position of the measuring means and the wire cutting machine and the wire drawing machine. The pulp unpacking device according to claim 4, 6, 7, or 8. 10. A pulp bale fed for cutting and pulling out a wire is moved in parallel in a conveying direction of a conveyor to detect a position of a binding wire of the pulp bale, and the wire is detected by the parallel movement. 6. The pulp unpacking method according to claim 1, further comprising the step of re-detecting the wire by changing the vertical position when the pulp is not performed. 11. A turner that lifts and turns a pulp bale supported on a conveyor by 90 degrees, and moves the pulp bale on the turner in parallel with the conveyor in the transfer direction of the pulp bale to position the binding wire of the pulp bale. 5. A wire detecting device comprising: a wire detecting means for detecting; and a control means for changing the vertical position of the turner and executing the wire detection again when the wire is not detected due to the parallel movement.
The pulp unpacking device according to 6, 7, 8 or 9. 12. A step of detecting a position of a binding wire of a pulp veil by scanning a pair of wire detecting means separated in a transporting direction by a conveyor in parallel with the transporting direction, and using a wire detecting means at a forward position in the scanning direction. A step of switching to a low-speed scan having a low scan speed after detecting the wire to stop the wire cutting machine and the wire pulling machine at the position of the binding wire of the pulp veil, and a step of cutting and pulling the wire at the stop position. Item 1. The pulp unpacking method according to Item 1, 3, 5, or 10. 13. The pulp unpacking method according to claim 12, wherein the scanning of the pair of detecting means is performed by a servomotor. 14. A pulp unpacking method for cutting and pulling out the wire binding the wrapping paper while transferring the pulp bale by a conveyor, and suctioning and removing the upper and lower wrapping papers. Machines are arranged on both sides of the conveyor so as to face each other across the pulp bale to be transferred, and pulp scanning is performed in the same direction by wire detection means provided on both the wire cutting machine and the wire pulling machine. Starting from the left and right ends of the bale, if the number of detected wires of the pulp bale obtained by one-way scanning is different from the number of wires binding the pulp veil, the return wire is detected and the number of detected wires matches. A pulp unpacking method characterized by operating a wire cutting machine and a wire pulling machine only when the pulp is removed. 15. A wire cutting machine for cutting a wire on one side of a pulp bale, and a wire pulling machine for gripping and pulling a wire on the other side cut by the wire cutting machine with a clamp member. 12. The pulp unpacking device according to claim 11, wherein the drawing machine performs a wire drawing operation under torque control by a servomotor, and includes means for stopping the drawing when the torque rises significantly. 16. A clamp member for holding a wire,
16. The pulp unpacking device according to claim 15, further comprising a shearing blade portion for cutting the wire when the torque at the time of pulling out is sharp. 17. A wire pulling machine comprising a moving means for drawing a wire in a horizontal direction orthogonal to a conveying direction of a conveyor, and a comb-shaped guide provided in the middle of the moving means and restricting a side slip through the wire. 17. The pulp unpacking device according to claim 11, 15 or 16. 18. A means for adsorbing and removing the wrapping paper positioned above the pulp bale from which the wire has been removed by using vacuum pressure, and an interval corresponding to the length of the pulp bale in the conveyor transfer direction. 18. A pair of position sensors, and means for inverting upside down while gripping a portion near the interval when pulp bale is present in the range of the position sensors. Pulp unpacking equipment. 19. A pulp unpacking apparatus for cutting and pulling out a wire binding a wrapping paper while transferring a pulp bale by a conveyer for unpacking work and sucking and removing the upper and lower wrapping papers. 2. A measuring device for measuring a size of a pulp bale in the middle of movement by a conveyor, and a wrapping paper removing device for setting a suction release position of wrapping paper sucked based on measuring data of the measuring device.
The pulp unpacking device according to 1, 15, 16, 17 or 18.