JPH09226993A - Structure for facilitating loading of base paper roll - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate loading of even a small diameter base paper roll in a base paper feeder and to reduce costs. SOLUTION: A pair of rails 36 and 36 are disposed in a pit 24 so as to be separated from each, other in a width direction and in parallel with each other and carrier trucks 28 are disposed in both rails 36 and 36 so as to be freely traveled. Each rail 36 is constructed in such a manner that a first horizontal part 38 positioned in the upstream of a base paper feed-in direction more than a base paper loading position and a second horizontal part 40 positioned in the base paper loading position and horizontally extended in an upper side more than the first horizontal part 38 by a specified height are successively provided in a slope part 42 inclined upward from the first horizontal part 38 to the second horizontal part 40. The height dimension of the paper tube center of a small diameter base paper roll 18 placed on the table 32 of a carrier truck 28 facing the second horizontal part 40 of the rail 36 from a floor surface is set larger than the height position of the center of a center block 22 closet to the floor surface.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for facilitating loading of a base paper roll, and more specifically, when loading a base paper roll into a base paper supply device, the base paper roll is carried into a base paper loading position by a carrier. The present invention relates to a structure for facilitating the loading of a base paper roll that can be easily loaded into the base paper supply device even if the diameter is small.

[0002]

2. Description of the Related Art A corrugated paper having a required pitch is imparted to a core paper, a corrugated corrugated top portion and a liner are glued and bonded to each other to produce a single-sided corrugated board sheet, and a back liner is attached to the single-sided corrugated board sheet. Corrugating machines for producing double-sided corrugated sheets are widely used. In this corrugating machine, a single facer for manufacturing a single-sided cardboard sheet and a double facer for bonding a back liner to the obtained single-sided cardboard sheet are used as main devices. Furthermore, as ancillary equipment, a base paper supply device that continuously supplies webs such as core paper and liners and other back liners (these webs are hereinafter referred to as “base papers”) to the single facer or double facer is indispensable. I have.

A so-called swing arm type mill roll stand shown in FIG. 9 is widely known as the base paper supply device. The mill roll stand 10 has two pairs of left and right swing arms 16 and 16 which are respectively spline-coupled to horizontal rotating shafts 12 and 14, and the paper tubes of the base paper roll 18 are provided at the tips of the arms 16 and 16. Center blocks 22 and 22 which can be inserted into both end portions of 20 are mounted so as to face each other.

Both swing arms 1 adjacent to the mill roll stand 10 and on the mill roll stand 10.
A transport device for transporting the raw paper roll 18 is disposed at a position below the swing loci of 6,16. Conventionally, a so-called trolley-type conveyor is suitably used as the transfer device. That is, as shown in the figure, on the floor surface of the factory premises adjacent to the mill roll stand 10, the rotating shaft 1
A pit 24 extending in parallel with 2, 14 is dug down to a required depth, and inside the pit 24, a pair of rails 26, 26 spaced apart in the width direction are arranged in parallel to face each other. . A transport carriage 28, which is movably driven by a driving unit (not shown), is movably disposed on both rails 26, 26 via rollers 30, 30 (see FIG. 10). The transport carriage 28 is provided with a table 32 on which the base paper roll 18 is placed, and only the table 32 is exposed above the pit 24.

In the mill roll stand 10, for example, in order to load the base paper roll 18 on the swing arms 16 on one side supported by the right rotation shaft 12, the carrier cart on which the base paper roll 18 is placed is loaded. 28 to pit 2
4 to move the carriage 28 to the swing arm 1
It is made to arrive at the base paper loading position below the rocking locus of 6,16. At this time, the two swing arms 16 and 16 are separated from each other, and in this state, the right rotation shaft 12 is rotated clockwise so that the center blocks 22 and 22 and the paper tube 20 of the base paper roll 18 are separated from each other. Stop at the position where the centers of the are aligned.

Then, the swing arms 16 and 16 are moved close to each other to move the center blocks 22 and 22.
Pinch the paper tube 20 of the base paper roll 18 (chucking)
After that, by rotating the arms 16 and 16 counterclockwise upward, the base paper roll 18 is loaded (“base paper hooking”).
(Also called).

[0007]

As described above, in the swing arm type mill roll stand 10, as described above, the raw paper roll 18 placed on the carrier 28 is loaded on the swing arms 16, 16. In addition, the center blocks 22 and 22 are attached to the paper tube 2 in the base paper roll 18.
It is designed to face the position where 0 can be inserted.

The center block 22 attached to the tip of the swing arm 16 has a base paper roll 1
In order to adjust the tension of the base paper fed out from No. 8, a tension controller 34 is coaxially arranged to apply braking to the rotation of the center block 22. Since the tension controller 34 has an extremely large diameter due to its structure, there is naturally a limit to the distance that can be maximally close to the floor surface of the factory site.
0, for example, the center C _{1 of the} center block 22
And the height of the floor of the factory site cannot be less than h ₁ . However, the height dimension h ₂ between the paper tube center C _{2 of the} small diameter (small winding) raw paper roll 18 whose diameter is greatly reduced by the consumption of the raw paper and the floor surface of the factory site is the height dimension h ₁ as shown in the figure. When it becomes smaller than the above (h ₂ <h ₁ ), the center of the center block 22 cannot reach the same level as the center of the paper tube of the base paper roll 18 placed on the table 32 of the transport carriage 28. That is, since the base paper roll 18 cannot be chucked at the level as it is, an operator manually lifts the base paper roll 18 to a required level and inserts each end of the paper tube 20 into the corresponding center block 22. It requires complicated and heavy work.

The tension controller 34 is arranged at a position separated from the tip of the swing arm 16 toward the swing fulcrum, and the controller 34 and the center block 2 are arranged.
It is conceivable that the two are connected via a transmission means such as a gear or a chain-sprocket. However, in this case, there is a problem that a large mechanical pressure is applied to the transmission means, accurate control cannot be performed, and the mechanism becomes complicated, causing a failure or the like.

Therefore, as a means for coping with this, it has been proposed to dispose a lifter at the base paper loading position and move the base paper roll up and down by the lifter. In this case, the center of the center block and the center of the paper tube of the base paper roll can be brought to the same level regardless of the diameter of the base paper roll. However, there is a problem in that the operation of transferring the base paper roll conveyed from the stock yard by the conveyance trolley to the lifter is complicated and requires heavy labor. Also,
It is pointed out that a new lifter must be installed adjacent to the mill roll stand, which increases the equipment cost.
Further, after the base paper roll is carried into the base paper loading position, the chucking work must be waited while the base paper roll is raised to the required level position by the lifter, which causes a lot of time loss in the base paper mounting work. In other words, in the corrugated board manufacturing industry, where it is necessary to deal with order changes associated with frequent small-lot production as it is now, it is extremely important to shorten the cycle time when replacing the base paper roll. The device did not fully meet the demand.

[0011]

SUMMARY OF THE INVENTION The present invention has been proposed in view of the above-mentioned drawbacks inherent in the loading operation of the base paper roll described above, and has been proposed in order to solve the problem, and even a base paper roll having a small diameter, An object of the present invention is to provide a structure that facilitates loading of a base paper roll, which can be easily loaded into a base paper supply device, at low cost.

[0012]

In order to solve the above-mentioned problems and preferably achieve the intended purpose, a structure for facilitating loading of a base paper roll according to the present invention is formed on a floor surface. Adjacent to the pit of the required depth extending in the direction, a pair of swing arms with center blocks that can chuck the paper core of the base paper roll are oscillated in a direction intersecting the extending direction of the pit. The base paper roll, which is movably provided and is placed on a table facing above the pit of a transporting vehicle that is movably arranged in the pit and is carried into a base paper loading position below the swing arm swing, In the base paper supply device that is chucked by a block and loaded, a pair of rails for guiding and guiding the transport carriage are arranged in parallel in the inside of the pit at predetermined intervals. A first horizontal portion located upstream of the raw paper loading position in the raw paper loading direction, and a second horizontal portion positioned at the raw paper loading position and extending horizontally above the first horizontal portion by a required height. The lower end of the base paper roll and the base paper loading position of the base paper roll mounted on the table of the carriage that faces the second horizontal part are formed by connecting the first horizontal part to the second horizontal part. It is characterized in that a gap is formed between the floor surface and the floor surface so as to prevent the tip of the swing arm swinging to chuck the base paper roll at the center block from interfering with the floor surface.

In order to preferably achieve the above-mentioned object, a structure for facilitating loading of a base paper roll according to another invention of the present application is provided adjacent to a pit of a required depth formed on a floor surface and extending in a required direction. , A pair of swing arms having center blocks projecting oppositely that can chuck the paper tube of the base paper roll are swingably provided in a direction intersecting the extending direction of the pit,
The base paper roll, which is placed on a table facing the pit of a transporting vehicle movably arranged in the pit and carried into a base paper loading position below the swinging of the swing arm, is chucked by the center block. In the base paper supply device configured to be loaded by loading on the floor surface of the base paper loading position,
A recess is formed with a required depth to prevent interference with the floor surface of the tip of the swing arm swinging to chuck the base paper roll placed on the table of the transporting dolly facing the base paper loading position with the center block. It is characterized by

In order to preferably achieve the above object, a structure for facilitating the loading of a base paper roll according to still another invention of the present application is adjacent to a pit having a required depth formed on a floor surface and extending in a required direction. In addition, a pair of swing arms having center blocks capable of chucking the paper tube of the base paper roll are provided so as to be swingable in a direction intersecting with the extending direction of the pit, and are arranged in the pit so that they can run freely. A raw paper roll placed on a table facing above the pit of an installed carriage and carried to a raw paper loading position below the swing of a swing arm is chucked by the center block to be loaded. In the supply device, inside the pit, a pair of rails for guiding and guiding the transport vehicle at a lower portion thereof are provided at predetermined positions at a position where an upper surface thereof is substantially the same as a floor level of a floor surface. Swing arms that are arranged in rows and are notched in the upper part of the rail facing the base paper loading position, and are swung to chuck the base paper roll placed on the table of the transport carriage facing the base paper loading position at the center block. A notch is formed to prevent interference with the rail at the tip of the.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION Next, a preferred embodiment of the structure for facilitating the loading of a base paper roll according to the present invention will be described.
This will be described below with reference to the accompanying drawings. Since the configuration of the mill roll stand (base paper supply device) according to the embodiment is the same as that described in the related art with reference to FIGS. 9 and 10, the same members are designated by the same reference numerals. The detailed description thereof will be omitted.

[0016]

[First Embodiment] As shown in FIG. 1, a pair of swing arms 16 and 16 in a mill roll stand 10 is provided.
A pit extending in a direction intersecting the swinging direction of the swing arm 16 (direction parallel to the rotating shaft 12) on the floor surface (installation surface of the mill roll stand 10) of the factory site below the swinging locus of 24 are dug down to the required depth. Inside the pit 24, as shown in FIG. 2, a pair of rails 36, 36 having a U-shaped cross section are arranged in parallel in a spaced manner in the width direction. 36a
A carrier truck 28 is movably disposed on the roller 30 via rollers 30. The transport carriage 28 includes a table 32 facing above the pit 24, and the base paper roll 18 is mounted on the table 32 in a posture in which the paper tube 20 of the raw paper roll 18 is parallel to the traveling direction. . The table 32
1, the length dimension of is set shorter than the width dimension of the base paper roll 18 (dimension in the axial direction of the paper tube 20),
When the base paper roll 18 is loaded on the swing arms 16 and 16, the arms 16 and 16 do not interfere with the table 32.

As shown in FIG. 1, each rail 36 has a first horizontal portion 38 located upstream of the raw paper loading position of the mill roll stand 10 in the raw paper loading direction, and a first horizontal portion located at the raw paper loading position. A second horizontal portion 40 that extends horizontally above the required height 38 from the first horizontal portion 38 is connected to an inclined portion 42 that is inclined upward from the first horizontal portion 38 toward the second horizontal portion 40. . The first horizontal portion 38 of the rail 36 is located below the floor level FL of the floor by a required level, and the carrier truck 28 that faces the first horizontal portions 38 and 38 via the rollers 30 and 30 is shown in FIG. As shown in, the lower surface of the table 32 facing above the pit 24 is set so as not to be greatly separated from the floor level FL. On the other hand, the second horizontal portion 40 of the rail 36, as shown in FIG.
The upper horizontal part 36b of 6 is disposed at a position substantially the same as the floor level FL. And the second horizontal portion 4
The lower end of the base paper roll 18 placed on the table 32 of the carriage 28 facing the 0, 40 and the floor surface ((floor level F
L) is defined so as to define a gap S having a required height. Although the inclination angle of the inclined portion 42 is exaggeratedly illustrated in the drawing, the actual inclination angle is set to about 1 ° to 2 °.

Here, the second horizontal portion 40 of the rail 36.
The height level (dimension of the gap S) of the base paper roll 18 placed on the table 32 of the transport carriage 28 facing the second horizontal portion 40 is the minimum diameter used in the mill roll stand 10. in case those, than the height h ₁ which can maximally close to the center C ₁ floor surface of the center block 22, a paper tube center C ₂ of the material roll 18 which is mounted on the table 32 The height h ₂ with respect to the floor is set to be larger (h ₁ <h ₂ ). That is, even for the base paper roll 18 having a small diameter (small winding) whose diameter is greatly reduced by the consumption of the base paper, the swing arms 16, 16 of the mill roll stand 10 are swung to move the center C _{1 of the} center blocks 22, 22. a paper core of material roll 18 the center C ₂
Can reach the same level as (see Fig. 3).
Thus, the operator does not have to manually lift the base paper roll 18 carried into the base paper loading position by the transport carriage 28, and the worker can be released from heavy labor. Moreover, since it is possible to deal with such a simple configuration by changing the shapes of the rails 36, 36 arranged inside the pit 24, the equipment cost can be kept low. Further, since the loading operation can be started from the time when the raw paper roll 18 is carried into the raw paper loading position by the transport carriage 28, the time required for hanging the raw paper can be shortened and the cycle time can be shortened.

The upper surface of the upper horizontal portion 36b of the second horizontal portion 40 of the rail 36 has a floor level FL.
Need not be substantially the same as the base paper roll 1 placed on the table 32 of the carriage 28 facing the second horizontal portion 40.
When the 8 is chucked by the center blocks 22, 22, the tension controllers 34, 34 arranged at the tips of the swing arms 16, 16 are positioned at a position where the tension controllers 34, 34 can be chucked without interfering with the floor surface of the factory site. It may be above or below the floor level FL as long as the roll 18 can face the center of the paper tube. Further, at the base paper loading position, the table 32 of the transport carriage 28 is located above the floor surface by a required height, so that a step (not shown) corresponding to the height of the table 32 should be installed on both sides of the pit 24. In this case, the operator can easily roll the base paper roll 18.

[0020]

[Second Embodiment] FIGS. 4 to 6 show a structure for facilitating loading of a base paper roll according to a second embodiment of the present invention.
The floor surface above the rails 44, 44 at the base paper loading position of the mill roll stand 10 is dug down to the required depth. That is, each rail 44 according to the second embodiment is located below the floor level FL by a predetermined height over the entire length thereof (the first horizontal portion 3 of the rail 36 of the first embodiment).
(The same position as 8), and the lower horizontal portion 44 of the rails 44, 44.
The lower surface of the table 32 of the carriage 28, which is movably disposed on the rollers a and 44a via the rollers 30 and 30, is configured so as not to be largely separated from the floor level FL (see FIGS. 5 and 6). Then, as shown in FIG. 6, the floor surface at the base paper loading position has a required depth (rail 44 in the embodiment).
The concave portion 46 is formed by digging down only to the level of the upper horizontal portion 44b), and the tips of the swing arms 16, 16 and the tension controllers 34, 34 can be exposed in the concave portion 46. The recess 4
When the swing arms 16 and 16 are swung to chuck the small diameter base paper roll 18 placed on the table 32 of the carriage 28 facing the base paper loading position with the center blocks 22 and 22, the depth dimension of 6 is set. The arm 16,1
Tension controller 3 arranged at the tip of 6
Allowing the rocking of 4,34 below the floor level FL, the center C ₁ of the center block 22 and the base paper roll 1
It is set to a value that allows the paper tube center C _{2 of} 8 to be located at the same level.

That is, the base paper roll 1 is consumed by the consumption of the base paper.
Even if the diameter of 8 becomes small, by exposing the tip of the swing arm 16 and the tension controller 34 into the recess 46, the center of the center block 22 is placed on the table 32 of the carriage 28, and the base paper roll 1
It is possible to face the same level as the center of the paper core of No. 8. Therefore, it is not necessary for an operator to manually lift the base paper roll 18 carried into the base paper loading position by the transport carriage 28 or to move up and down using a lifter.
It is possible to easily carry out the loading work of the above, and the equipment cost can be kept low.

[0022]

[Third Embodiment] FIGS. 7 and 8 show a structure for facilitating the loading of a base paper roll according to a third embodiment of the present invention. The rail 4 is provided in the pit 24 of the third embodiment.
The upper surfaces of the upper horizontal portions 48b and 48b of the valves 8 and 48 are set to be substantially the same as the floor level FL of the floor surface. Then, the lower horizontal portions 48a, 48a of the rails 48, 48
The lower surface of the table 32 of the carriage 28, which is movably arranged on the floor via rollers 30 and 30, is a floor level FL.
Is configured so as not to be largely separated from. Further, the upper horizontal portions 48b, 4 facing the base paper loading position of the rails 48, 48
As shown in FIG. 7, 8b is notched over a required length, and the swing arm 16 is cut through the notch 50.
The tip and tension controller 34 are in the pit 24
To be able to see inside.

That is, as shown in FIG. 8, when loading a small diameter roll 18 of which the diameter has become small due to the consumption of the raw paper, the tips of the swing arms 16, 16 and the tension controllers 34, 34 are provided with the cutout portions. By swinging below the floor level FL via 50, the center C ₁ of the center block 22 is the same as the center C ₂ of the paper tube 18 of the base paper roll 18 placed on the table 32 of the carrier 28. You can reach the level. Therefore, even if the base paper roll 18 has a small diameter, it is not necessary for the operator to manually lift it at the base paper loading position, and the base paper roll 18 can be easily loaded.
The labor of workers can be reduced.

As in the third embodiment described above, the top surface of the rail is set to be substantially the same as the floor level of the floor, and the base paper loading position is faced via the inclined portion as in the first embodiment. By positioning the rail above the floor by the required height, it is possible to adopt a configuration that prevents interference between the tip of the swing arm and the tension controller and the floor.

[0025]

As described above, according to the structure for facilitating the loading of the base paper roll according to the present invention, when the base paper roll placed on the table of the carrier is loaded into the base paper supply device, Since the tip of the swing arm does not interfere with the floor of the base paper supply device, even a base paper roll having a small diameter can be loaded without being lifted by the operator. That is, there is an advantage that the worker can be freed from dangerous heavy labor and the cycle time required for replacing the base paper roll can be effectively shortened. Further, without arranging a complicated and expensive device such as a lifter, it is possible to easily load the base paper roll by processing or exchanging rails or processing the floor surface,
Extremely economical. Since the loading operation can be started immediately by loading the base paper roll to the base paper loading position by the carrier, it is not necessary to provide a waiting time as in the case of using a lifter, and the cycle time can be further shortened. .

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram showing a structure that facilitates loading of a raw paper roll according to a first embodiment of the present invention.

FIG. 2 is a schematic cross-sectional view showing the structure according to the first embodiment, which is vertically cut at a position of a first horizontal portion of a rail.

FIG. 3 is a schematic cross-sectional view showing the structure according to the first embodiment in a vertical cross section at a position of a second horizontal portion of the rail.

FIG. 4 is a schematic configuration diagram showing a structure for facilitating loading of a base paper roll according to a second embodiment of the present invention.

FIG. 5 is a schematic cross-sectional view showing a structure according to a second embodiment in a vertical section at a position separated from a base paper loading position on a rail.

FIG. 6 is a schematic cross-sectional view showing a structure according to a second embodiment in a vertical section at a position of a base paper loading position on a rail.

FIG. 7 is a schematic configuration diagram showing a structure that facilitates loading of a raw paper roll according to a third embodiment of the present invention.

FIG. 8 is a schematic cross-sectional view showing a structure according to a third embodiment in a vertical cross section at a position of a base paper loading position on a rail.

FIG. 9 is a schematic perspective view showing a mill roll stand.

FIG. 10 is an explanatory diagram showing a relationship between a center block in a mill roll stand and a base paper roll placed on a transport carriage.

[Explanation of symbols]

16 Swing Arm 18 Base Paper Roll 20 Paper Tube 22 Center Block 24 Pit 28 Transport Carriage 32 Table 36 Rail 38 First Horizontal Section 40 Second Horizontal Section 42 Sloping Section 46 Recess 48 Rail 50 Notch S Clearance FL Floor Level

Claims (3)

[Claims] 1. A paper tube of a base paper roll (18) adjacent to a pit (24) having a required depth formed on a floor surface and extending in a required direction.
A pair of swing arms (16, 16) having oppositely projecting center blocks (22) that can chuck (20) are installed in pits (2
The table (32) facing the upper side of the pit (24) of the transport carriage (28), which is provided so as to be swingable in a direction intersecting the extending direction of (4) and is movably arranged in the pit (24). Feeding a raw paper roll (18) placed on the swing arm (16, 16) below the swinging position of the swing arm (16, 16) and chucked by the center block (22, 22). In the apparatus, inside the pit (24), a pair of rails (36, 36) for guiding the transport vehicle (28) to travel are arranged in parallel at a predetermined interval, and each rail (36) is A first horizontal portion (38) located upstream of the raw paper loading position in the raw paper loading direction, and a first horizontal portion located at the raw paper loading position and extending horizontally above the first horizontal portion (38) by a required height. 2 horizontal parts (40) from the first horizontal part (38) to the second
The table (32) of the carrier vehicle (28) facing the second horizontal portion (40), which is continuously provided with the inclined portion (42) inclined upward toward the horizontal portion (40).
Place the base paper roll (18) in the center block (2) between the bottom of the base paper roll (18) placed on the
Swing arm swung to chuck at (22)
A structure for facilitating loading of a base paper roll, characterized in that a gap (S) is formed so as to prevent the tip of (16, 16) from interfering with the floor surface. 2. A paper tube of a base paper roll (18) adjacent to a pit (24) of a required depth formed on a floor surface and extending in a required direction.
A pair of swing arms (16, 16) having oppositely projecting center blocks (22) that can chuck (20) are installed in pits (2
The table (32) facing the upper side of the pit (24) of the transport carriage (28), which is provided so as to be swingable in a direction intersecting the extending direction of (4) and is movably arranged in the pit (24). Feeding a raw paper roll (18) placed on the swing arm (16, 16) below the swinging position of the swing arm (16, 16) and chucked by the center block (22, 22). In the apparatus, the base paper roll placed on the table (32) of the carriage (28) facing the base paper loading position on the floor surface of the base paper loading position.
The recess (46) that prevents the tip of the swing arm (16, 16) swinging to chuck (18) with the center block (22, 22) from interfering with the floor surface is formed to the required depth. A structure that facilitates loading of the characteristic base paper roll. 3. A paper tube of a base paper roll (18) adjacent to a pit (24) having a required depth formed on a floor surface and extending in a required direction.
A pair of swing arms (16, 16) having oppositely projecting center blocks (22) that can chuck (20) are installed in pits (2
The table (32) facing the upper side of the pit (24) of the transport carriage (28), which is provided so as to be swingable in a direction intersecting the extending direction of (4) and is movably arranged in the pit (24). Feeding a raw paper roll (18) placed on the swing arm (16, 16) below the swinging position of the swing arm (16, 16) and chucked by the center block (22, 22). In the device, inside the pit (24), at the lower part thereof, the transport carriage (28)
A pair of rails (48, 48) for guiding the traveling of the rails are arranged in parallel at a position where the upper surface of the rails is substantially the same as the floor level (FL) of the floor, and the rails (48, 48). The upper part facing the base paper loading position is cut out, and the base paper roll (18) placed on the table (32) of the carriage (28) facing the base paper loading position is chucked by the center block (22, 22). A structure for facilitating loading of a base paper roll, characterized in that a notch (50) is formed to prevent interference with the rail (48, 48) at the tip of the swinging arm (16, 16).