JPH0132092B2 - - Google Patents

Description

[Detailed Description of the Invention] "Industrial Application Field" The present invention relates to a pulp unpacking device that improves the unpacking efficiency by cutting and removing wires binding the pulp without manual intervention. It is.

"Prior Art" Generally, in paper manufacturing plants that do not have pulp manufacturing equipment, sheet-like pulp transported from the pulp manufacturing plant is separated by a pulper and then used as a raw material.

As shown in FIG. 13, the sheet-like pulp is transported as a so-called pulp bale 1 wrapped in wrapping paper 1a and 1b from above and below and tied vertically in a criss-cross pattern with wires 1c. Since the pulp is stored, when this pulp is fed into a pulper and disintegrated, it is necessary to manually remove the wire 1c of the pulp bale 1 and the wrapping papers 1a and 1b. has been done.

By the way, in recent years, the scale of paper manufacturing plants has increased significantly, and in order to efficiently supply large amounts of pulp raw materials, it is necessary to automatically perform the pulp unpacking process described above without manual intervention. There is a request to do so. In order to meet this demand, methods and devices for unpacking pulp have been proposed in Japanese Patent Application No. 57-9752 and the like.

That is, as shown in FIG. 14, this unpacking device aligns the pulp bale 1 being conveyed by the roller conveyor 2 in the width direction of the roller conveyor 2 using the centering device 3, and cuts the wire. The wire 1c is cut by the machine 4, and the cut wire 1c is pulled out and removed by the wire removing machine 5. A first suction machine 6 is provided movably in a direction intersecting the roller conveyor 2.
A, the upper wrapping paper 1a is removed, the pulp bale 1 is turned over by the reversing machine 7 provided so as to surround the roller conveyor 2, and the lower wrapping paper 1b is turned upward, and further, The lower wrapping paper 1 is placed on the second suction machine 6B provided downstream of the reversing machine 7.
b is adsorbed and removed.

However, in such a pulp unpacking device, since it is necessary to provide two suction machines 6A and 6B, the roller conveyor 2
Since the upper and lower wrapping papers 1a, 1b are removed at different positions by the first and second suction machines 6A, 6B, the removed wrapping papers 1a, 1b tend to be longer. There is a problem in that it takes a lot of time to clean up afterwards. In addition, particularly in high-quality paper manufacturing lines, if the wrapping papers 1a and 1b are fed into the pulper together with the pulp and mixed into the raw materials, it may cause a decline in the quality of the product. In order to prevent this, wrapping paper 1a,
There is a demand for collecting 1b in one place and collecting it reliably.

"Problems to be Solved by the Invention" The present invention has been made in view of the above circumstances, and aims to streamline the work of supplying raw materials to the pulper by improving the pulp unpacking device, and to solve the problem in the shortest possible time. The purpose of this invention is to facilitate the packing work and also to facilitate the recovery of wrapping paper removed from the pulp bale.

"Means for Solving the Problems" In order to achieve the above object, the present invention provides a wire cutting machine and a wire removing machine facing each other on both sides of a roller conveyor that conveys pulp bales, and a wire cutting machine and a wire removing machine are provided on the downstream side thereof. A reversing machine is installed above the roller conveyor to make forks appear and retract, and the pulp is held between the forks and rotated vertically. A wrapping paper removal machine is installed that moves to a position above the conveyor or above the roller conveyor, and the reversing machine and suction machine are operated alternately to allow one suction machine to remove the wrapping paper. be.

"Embodiment" Hereinafter, an embodiment of the present invention will be described with reference to FIGS. 1 to 12.

First, the overall layout of the pulp unpacking device will be explained with reference to FIG. 8, a wire cutting machine 4A installed on one side of the wire cutting machine 4A for cutting the wire;
A wire removing machine 5A is provided at a position facing the wire removing machine 5A for pulling out the wire, and a reversing machine 7A is provided downstream of the wire removing machine 4A and the wire removing machine 5A for vertically rotating the pulp 1 while holding it therebetween. It is installed in a position facing machine 7A, and
The wrapping paper removing machine 9 is provided in a section between the wrapping paper removing machine 9, which rotates above the inverted pulp and adsorbing the wrapping paper, and the position where the wire cutting guide 4A and the wire removing machine 5A face each other, and the wrapping paper removing machine 9. Wrapping paper 1a, 1b
cleaning nozzle 10 that sprays air onto the surface of
The basic structure includes an air blowing nozzle 11 that blows air between the pulp and wrapping paper 1a, 1b to promote separation between the two.

The pulp turner 8 is provided by cutting out a part of the roller conveyor 2, as shown in FIGS. It has a configuration in which a cross-shaped rotating frame 8b is provided to support it from below.

The wire cutting machine 4A has a roller conveyor 2.
A cutting head 14 is provided on a movable frame 13 that moves along rails 12, 12 arranged parallel to the traveling direction of the roller conveyor 2 (hereinafter referred to as the X-axis direction). It is designed to move horizontally in the Y-axis direction (hereinafter referred to as the Y-axis direction). The cutting head 14 includes a contact plate 16 attached to the tips of a pair of support shafts 15 that can move forward and backward in the Y-axis direction, magnetic sensors 17, 17 attached to the contact plate 16, and a contact plate 16 provided on the contact plate 16. The cutter 18 moves forward and backward in the Y-axis direction through the opening 16a.
8 performs cutting by crossing a pair of blades. Further, the contact plate 16 is connected to the support shaft 15,
15 at both ends in the width direction, and supported vertically by support pins 19, 19. By adopting such a support method, it is possible to adjust the posture of the pulp or the unevenness of the side surface of the pulp. The angle is changed accordingly. In addition,
In the figure, numeral 20 is a fluid pressure cylinder that operates the cutter 18, numeral 21 is a motor that drives the moving frame 13 in the X-axis direction, and numeral 22 is the cutting head 1.
4 in the Y-axis direction.

The wire removing machine 5A is composed of a guide frame 23 and a main frame 24, as shown in FIGS. 5 to 7.

The guide frame 23 includes guide rails 25,
25, the fixed side guide rolls 26A, 26A are supported movably from above and below in the X-axis direction and their movement in the vertical direction is regulated, and the fixed side guide rolls 26A, 26A guide the wires that bind the pulp, and the movable side that is movable up and down. It has guide rolls 26B, 26B, and a guide plate 27 having a sliding surface for guiding and centering the wire at the widthwise central part of these guide rolls 26A, 26B, and further has a guide plate 27 for guiding and centering the wire, and also for movement in the X-axis direction. The brake device 28 has a brake device 28 for regulating the brake speed, and a brake release mechanism 29 for operating the brake device 28.

The brake device 28 is configured such that a brake pad 31 is brought into contact with a plate member 30 provided along the X-axis direction.
is attached to the tip of a brake shaft 32 that is vertically movable. Further, the lower end of the brake shaft 32 is connected to a link 3 that forms part of the brake release mechanism 29.
3, and by bringing an actuating rod (described later) into contact with a swing arm 34 forming a part of this link 33, the brake shaft 32 is lowered and the brake is released.

The main frame 24 is mounted on rails 35, 35 provided along the Y-axis direction,
Furthermore, rails 36, 36 are mounted on the main frame 24 along the X-axis direction. and,
A moving frame 38 that supports the extraction head 37 is mounted so as to be movable along the rails 36, 36.

The drawing head 37 consists of a clamp 39 for gripping the wire and a contact plate 16 configured similarly to the contact plate 16 of the wire cutting machine 4A. It is supported by the tips of support shafts 15, 15 so as to be movable forward and backward in the Y-axis direction, and also supported by pins 19, 19 so as to be vertically rotatable.

Further, the clamp 39 is provided in an inclined state as shown in FIG. 7 in order to prevent the wire from getting caught when the wire is pulled out. Furthermore, the main frame 24 (or moving frame 38)
An operating rod 40 is protruded from the front of the
This actuating rod 40 moves the main frame 24
By moving forward in the axial direction (movement toward the roller conveyor 2), the swing arm 34 of the guide frame 23 is pressed, and the brake of the guide frame 23 is released. Further, the actuating rod 40 engages with a portion of the guide frame 23 to connect the guide frame 23 and the main frame 24, allowing them to move together in the X-axis direction.

In addition, in FIGS. 5 to 7, the reference numeral 41
42 is a motor that moves the main frame 24 in the Y-axis direction; 42 is a motor that moves the moving frame 38 in the X-axis direction; 43 is a motor that moves the extraction head forward and backward in the Y-axis direction; 44 is a clamp 38
This is a drive device that operates the

On the other hand, the reversing machine 7A installed downstream of the wire cutting machine 4A and the wire pulling machine 5A has two upper and lower forks 49 mounted on a rotating frame 48 that is vertically rotated by a motor 46 about a shaft 47 ( Note that the lower fork is not shown),
This fork 49 rotates while holding the pulp from above and below. Further, the fork 49 is retracted to a position above the operating range of the wrapping paper removing machine 9.

The wrapping paper removing machine 9 also includes four adsorbers 5.
0 is mounted on a rotating frame 51, and by rotating these adsorbers 50 to the position shown by the solid line or the position shown by the chain line in FIG. 1, the wrapping paper covering the upper part of the pulp is adsorbed. can be removed.

Next, the operation of the unpacking device configured as above will be explained.

(i) The pulp bale 1 is conveyed in the X-axis direction by the roller conveyor 2, and is positioned at the center in the width direction of the roller conveyor 2 by a centering device (not shown).

(ii) Stop the roller conveyor 2 and position the pulp bale 1 above the pulp turner 8.

(iii) When the contact plate 16 of the wire cutting machine 4A is brought into contact with the side surface of the pulp bale 1 and the cutting head 14 is moved in the X-axis direction, the contact plate 16
moves along the unevenness of the side surface of the pulp bale 16 while shaking its head, and when the magnetic sensor 17 detects the metal wire 1c, the cutting head 1 moves at a certain timing from the time of this detection.
4 is stopped, and the cutter 18 is placed in a position facing the wire 1c.

(iv) Move the cutter 18 in the Y-axis direction and cut the wire 1c as shown in FIG.

(v) Repeat steps (iii) to (iv) above to
Cut the main wire 1c.

(vi) When the main frame 24 is advanced to engage the actuating rod 40 with the guide frame 23 and the swing arm 34 is rotated to release the brake, the guide frame 23 and main frame 24 move together in the X-axis direction. It becomes possible to do so.

(vii) Move the drawing head 37 forward to bring the contact plate 16 into contact with the side surface of the pulp bale 1, and move the guide frame 23 and the moving frame 38 in the X-axis direction to position the cutting head 14. Similarly, pull out head 3.
A clamp 39 of No. 7 is disposed at a position facing the wire 1c.

(viii) As shown in FIG. 11, the movable guide roll 26B is lowered, the wire 1c is gripped by the clamp 39, and the clamp 39 is moved back in the Y-axis direction.

(ix) The wire 1c pulled by the clamp 39 is
As shown in FIG. 12, both guide rolls 26A, 2 on the fixed side and the movable side are guided by the guide plate 27.
Enter between 6B and squeeze Y while being squeezed by both rolls.
It is pulled axially outward. At this time, wire 1
The vertical force generated by the tension c is applied to the guide roll 26B and the guide frame 2.
3, and is supported by the upper rail 25 via the clamp 39, so that almost no force other than the Y-axis direction is applied to the clamp 39, and the wire 1c can be pulled out by a simple pull in the horizontal direction. .
Further, the main frame 24 to which the clamp 39 is attached will not be lifted off the rail due to vertical force being applied to the main frame 24.

(x) After repeating the operations (vii) to (ix) above to pull out the two wires 1c, operate the pulp turner 8 to horizontally rotate the pulp bale 1 through 90 degrees, and then perform the steps (iii) above. Return to , cut the remaining two wires 1c, and pull them out.

() The roller conveyor 2 is operated to stop the pulp bale 1 at a position between the reversing machine 7A and the wrapping paper removing machine 9, and air is blown from the cleaning nozzle 9 onto the surface of the wrapping paper 1a to blow away dust.

() After turning the wrapping paper removing machine 9 to the position shown by the chain line in FIG. 1, as shown in FIG. and remove it, and then move it to the position indicated by the solid line.

() The pulp bale 1 is held between the forks 49 of the reversing machine 7A and vertically rotated through 180 degrees.

() Remove the wrapping paper 1b in the same manner as in () above.

() When the roller conveyor 2 is operated to send the pulp bale 12 downstream, the unpacking operation is completed.

Note that the configuration of the wire cutting machine, wire removing machine, reversing machine, or wrapping paper removing machine that forms part of the unpacking device is not limited to the one embodiment described above. For example, a reversing machine may be retracted from a position above the roller conveyor as long as it does not interfere with the operation of the wrapping paper removal machine, and a wrapping paper removal machine may be retracted from a position above the roller conveyor and removed from the wrapping paper removal machine. Any material that can absorb from above is sufficient.

"Effects of the Invention" As is clear from the above description, the present invention provides a reversing machine having a fork that can advance and retreat above a roller conveyor on the downstream side of a wire cutting machine and a wire removing machine, and A wrapping paper removing machine having a suction mechanism that can move forward and backward is placed above the roller conveyor facing each other, and an air blowing nozzle is provided at a position on the upstream side of the wrapping paper removing machine on the roller conveyor. (a) The upper and lower wrappers can be removed while the pulp bale remains in a specific position on the roller conveyor, thus reducing the length of the line required to unpack the pulp. At the same time, it is possible to reliably recover the wrapping paper removed from the pulp bale and prevent the wrapping paper from being mixed into the raw material.

(b) by blowing air from a cleaning nozzle onto the surface of the wrapping paper prior to its removal;
Dust on the pulp bale surface can be removed.

(c) By blowing air between the pulp and the wrapping paper when removing the wrapping paper by adsorption, the wrapping paper can be easily peeled off from the pulp.

It has excellent effects such as

[Brief explanation of drawings]

1 to 12 show an embodiment of the present invention, in which FIG. 1 is a plan view of the entire device, FIG. 2 is a plan view of the wire removing machine, and FIG. 3 is a plan view of the wire removing machine.
4 is a view taken along the second - line, FIG. 5 is a plan view of the wire cutting machine, and FIG. 6 is a view taken along the - line of FIG. Figure 7 is the fifth
Fig. 8 is a detailed view of the cleaning nozzle, Fig. 9 is a detailed view of the air blowing nozzle, Figs. 10 to 12 are illustrations of the operation of the wire removing machine, and Fig. 14 is a perspective view showing a conventional example of a pulp bale, and FIG. 14 is a plan view showing a conventional example of a pulp unpacking device. 1...Pulp bale, 1a, 1b...Wrapping paper,
1c...Wire, 2...Roller conveyor, 4A
...Wire cutting machine, 5A ...Wire removing machine, 7A
... Reversing machine, 8 ... Pulp turner, 9 ... Wrapping paper removal machine, 10 ... Cleaning nozzle, 11 ...
... Air blowing nozzle, 14 ... Cutting head, 1
6...Contact plate, 18...Cutter, 26A, 26
B... Guide roll, 28... Brake device, 3
7... Pull-out head, 39... Clamp, 40
...Operating rod, 50...Adsorption device, 51...Swivel arm.

Claims (1)

[Scope of Claims] 1. A pulp bale made by wrapping sheet-like pulp accumulated in the vertical direction with wrapping paper from the upper and lower sides, respectively, and binding it with a wire wound in the vertical direction. a roller conveyor for conveying the wire; a wire cutting machine installed on one side of the roller conveyor for cutting the wire; and a wire cutting machine installed at a position facing the wire cutting machine across the roller conveyor and gripping the wire. A wire removing machine that moves horizontally toward the outside of the roller conveyor, and a wire removing machine that is installed on one side of the roller conveyor downstream of the wire removing machine and the wire cutting machine, and that is installed at a position above the roller conveyor and that moves horizontally on the roller conveyor. A reversing machine that clamps the pulp between forks and rotates it vertically, and a reversing machine that is installed at a position facing the reversing machine across the roller conveyor, and a retracting position that sucks the wrapping paper on the upper side of the pulp from above the roller conveyor. and a wrapping paper removing machine that moves to a position where air is supplied between the wrapping paper and the pulp between a point where the wire cutting machine and the wire removing machine are provided and a point where the reversing machine is provided. A pulp unpacking device characterized by being provided with an air blowing nozzle that promotes the separation of the two. 2. Between the point where the wire cutting machine and wire removing machine are installed and the point where the reversing machine is installed,
The pulp unpacking device according to claim 1, further comprising a cleaning nozzle that blows air onto the surface of the wrapping paper to remove dust.