JP2673250B2 - Raw paper carrier - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a base paper transport device, and more particularly, to loading a base paper roll into a base paper supply device regardless of fluctuations in diameter of the base paper roll. The present invention relates to a conveying device that can smoothly perform automatic loading of the above.

Prior art A corrugated paper is provided with a required pitch waveform, the corrugated corrugated top and the liner are glued and bonded to produce a single-sided corrugated cardboard sheet, and a back liner is attached to the single-sided corrugated cardboard sheet to form a double-sided corrugated cardboard sheet The corrugating machine that manufactures is widely spread. In this corrugating machine, a single facer for producing a single-sided corrugated board sheet and a double facer for laminating a back liner on the obtained single-sided corrugated board sheet are mainly used. Further, as ancillary equipment, a base paper feeding device that continuously feeds webs of core paper, liner and other back liners (these webs will be referred to as “base paper” hereinafter) to the single facer and double facer is indispensable. There is.

The base paper is distributed in the form of a roll having a predetermined diameter (hereinafter referred to as "base paper roll") wound around a core paper tube. Then, the stencil roll transport device for transporting the stencil roll from a predetermined stock yard to the stencil supply device and returning the stencil roll detached from the stencil supply device by order change or the like to the stock yard again is provided. It is located adjacent to the device. That is, the stencil roll conveyed to the position where the stencil supply device is disposed is loaded into the stencil supply device, where the stencil sheet is fed and supplied. Further, with the change in the order of the corrugated cardboard sheets, the stencil roll is removed from the stencil supply device, transferred to the transport device again, and carried out to a predetermined stock yard.

A so-called swing arm type mill roll stand shown in FIG. 8 is widely known as a base paper supply device used in a corrugating machine. This mill roll stand 10
Has two pairs of left and right swing arms 13 and 13 which are respectively spline-coupled to horizontal rotary shafts 11 and 12, and each arm 13,
Center blocks 16 and 16 which can be inserted into both ends of the paper tube 15 in the raw paper roll 14 are respectively attached to the tip of 13 so as to face each other.

A conveying device for advancing the raw paper roll 14 at a position adjacent to the mill roll stand 10 and below the swing loci of the swing arms 13, 13 in the mill roll stand 10.
17 are arranged. As the transport device 17, a so-called trolley type conveyor is preferably used conventionally. For example, as shown in the drawing, a loading / unloading path 18 for loading and unloading the base paper roll 14 is formed on the left and right sides of the factory premises sandwiching the mill loin stand 10. This delivery
The carry-out path 18 is formed by a pit that is dug down to the surface of the factory at a required depth and extends in parallel with the rotary shafts 11 and 12. It is installed in. The trolley 19 is a base paper roll 14
A table 20 for mounting the above is provided on the upper part, and only this table 20 is exposed above the pit.

In this mill roll stand 10, for example, in order to load the base paper roll 14 on the swing arms 13 on one side supported by the rotary shaft 12 on the right side, the cart 19 on which the base paper roll 14 is placed is placed on the right side. The carriage 19 is made to travel on the carry-in / carry-out path 18 and arrives below the swing locus of the swing arms 13, 13. At this time, the two swing arms 13, 13 are separated from each other, and in this state, the right rotation shaft 12 is rotated clockwise, so that the center blocks 16, 16 and the paper tube 15 of the base paper roll 14 are in contact with each other. Stop at the position where the centers of are aligned.

Next, the two swing arms 13, 13 are moved close to each other, and the center block 16, 16,
After pinching (chucking) the paper tube 15 of
The base paper roll 14 is loaded (also referred to as "base paper hook") by rotating the 3, 13 counterclockwise upward.

As described above, in the swing arm type mill roll stand 10, in order to load the base paper roll 14 placed on the carriage 19 into the swing arms 13 and 13, as described above,
It is necessary to align the center blocks 16 and 16 with the center of the paper tube 15 in the base paper roll 14. Here, the center of the center block 16 moves on a circular arc locus having the radius of the length dimension of the arm 13 with the rotating shaft 12 as the center. For this reason, it is impossible to always match the center of various base paper rolls 14 with different roll diameters mounted on the carriage 19 with the center of the center block 16, and the conventional center block 1
The work of aligning the cores 6, 16 and the paper tube 15 is manually performed, and thus automation is extremely difficult.

Further, as shown in FIG. 9, the base paper is consumed and the base paper roll is
Regarding the diameter of 14 which is greatly reduced, there is a drawback that the automatic loading itself cannot be performed. That is, the center block 16 attached to the tip of the swing arm 13 is provided with the brake means 21 coaxially in order to prevent excessive feeding of the base paper due to inertia during rotation of the base paper roll 14. Braking is applied to the rotation of the block 16. Since this braking means 21 has an extremely large diameter due to its structure, there is naturally a limit to the distance that can be maximally close to the factory site, for example, the height of the center C ₁ of the center block 16 and the factory site. It cannot be said that the size is less than h ₁ . However, the height dimension h ₂ between the paper tube center C ₂ of the raw paper roll 14 whose diameter has largely decreased due to the consumption of the raw paper and the factory site surface is smaller than the height dimension h ₁ (h ₂ <h ₁ ) When it comes to the center block 16
The center of the paper cannot reach the center of the paper core of the base paper roll 14 placed on the carriage 19. At this time, automatic chucking cannot be performed, and a worker manually lifts the base paper roll 14 and inserts the end portion of each paper tube 15 into the corresponding center block 16, which requires a complicated and heavy work.

SUMMARY OF THE INVENTION The present invention has been proposed in view of the above-mentioned drawbacks inherent in the above-described base paper replacement work, and is proposed to suitably solve this problem, and to replace and replace the base paper roll accompanying frequent order changes. An object of the present invention is to provide a base paper transporting device that can be placed and automatically loaded regardless of the diameter dimension of the base paper roll and can easily achieve automation.

Means for Solving the Problems In order to overcome the above-mentioned problems and achieve an intended object, the present invention provides a base paper which is arranged adjacent to a base paper supply device and conveys a base paper roll to a position where the base paper supply device can be loaded. In the transport device, the endless cords are separably mounted on a pair of endless cords that are reciprocally movable and extend in a direction intersecting the feed direction with a predetermined distance in the base paper supply direction by the base paper supply device. A pallet for a base paper roll which is engaged with and is conveyed along with its reciprocating motion, an engaging means provided on the endless rope and an engaging means for the endless rope provided on the pallet for the paper roll A pallet, which is located between the pair of endless filaments adjacent to the engaging / disengaging means and the raw paper supply device, and on which the raw paper roll is placed is set according to a required command to the pair of endless filaments. Separate up and down It is characterized by being configured with a lifter.

Embodiments Next, the base paper conveying apparatus according to the present invention will be described below with reference to the accompanying drawings with reference to preferred embodiments. The purpose of the present invention is to automatically load the base paper roll into the base paper supply device regardless of the diameter of the base paper roll. However, in order to contribute to the overall understanding, the base paper transport device of the present invention is used. First, the schematic configuration of the base paper supply device in which the above is suitably arranged will be described.

(Regarding Base Paper Supply Device) As shown in FIG. 5, the base paper supply device 10 according to the embodiment is
It is configured as a swing arm type mill roll stand, and is installed below a known splicer 22 for splicing base paper. The swing arm mechanism that constitutes the mill roll stand 10 is provided with a pair of swing arms that are rotatable left and right by a required angle about a perpendicular line extending upward. However, in the illustrated example, two left and right swing arm mechanisms 23 and 24 are provided in order to perform automatic paper splicing using a splicer, and these two swing arm mechanisms have mechanical configurations. Since they are exactly the same, only the swing arm mechanism 23 arranged on the left side of the drawing will be described, and the description of the swing arm mechanism 24 arranged on the right side will be omitted.

For example, on the pedestal 25, a pair of bearings 26, 26 (only one of which is shown) are arranged to face each other at a predetermined interval in a direction orthogonal to the feed direction of the base paper, and the bearings 26, 26 are provided at respective ends of the rotary shaft 11. The part is pivotally supported. A base of a pair of swing arms 13, 13 (only one of which is shown) is spline-connected to the rotary shaft 11, and a hydraulic cylinder (not shown) is urged in forward and reverse directions, thereby relatively moving in a direction toward and away from each other. It is configured to be movable in the direction. Further, the rotating shaft 11 is rotated at a predetermined angle together with the pair of swing arms 13 by a hydraulic cylinder (not shown).
Therefore, as will be described later, the swing arms 13 and 13 can be stopped by tilting above one of the base paper transporting devices that extend in parallel on both sides of the swing arm mechanism.

At the tip of each swing arm 13, a center block 16 projecting toward the tip of the other swing arm 13 of the pair is fixed, and both center blocks 16, 16 are fixed.
Thereby, the paper tube 15 of the base paper roll 14 can be chucked from both sides. The center block 16 is provided with the above-mentioned brake means 21 coaxially in order to prevent excessive feeding of the base paper due to inertia when the base paper roll 14 is rotated, so that the center block 16 can be rotated. It is configured to provide anti-braking.

(Regarding the base paper conveying device) On the floor surface of the factory site where the splicer 22 is installed and the mill loin stand 10 is installed, the swing arms 13 and 13 are respectively supported with respect to the rotating shafts 11 and 12. 3 parallel to each other (direction orthogonal to the paper feed direction)
A pit 27 of a book is drilled at a required depth. And
In each of these pits, a base paper transporting device 17 proposed as the present invention is housed and installed.

As shown in FIG. 1, a pair of frames 28, 2 are placed in the pit 27.
8 are arranged in parallel at a predetermined interval, and the frame 28
Is bent horizontally inward (toward the facing frame). Rails 29, 29 are provided on these horizontal portions 28a, 28a.
Are erected parallel to each other, and a plurality of rollers 53 arranged on a pallet 51 described later can be movably mounted on the upper end surface thereof. As shown in FIG. 3, a plurality of support plates 62 for supporting the lid 61 (only part of which is shown) are provided at predetermined positions in the longitudinal direction of the rails 29, 29, which obstructs passage of workers. There is no consideration. Between the lid 61 and the frames 28, 28, there are two hanging parts 51 of a pallet 51 which will be described later.
A gap through which a and 51a can pass is defined.

As shown in FIG. 3, a driven shaft 30 is rotatably supported by the rails 29, 29 at a predetermined left position.
Sprockets 31, 31 are arranged at both ends of the rail 29, 29 projecting outward in the rail 30. Further, a drive shaft 32 is rotatably supported by rails 29, 29 spaced apart from the driven shaft 30 by a predetermined distance to the right, and the sprocket 33, 33 arranged at both ends of the drive shaft 32 and the driven shaft 30. Endless roller chain 3 forming a conveyor drive system with the sprockets 31, 31 arranged.
4,34 are wrapped around. Further, on the outside of the rail 29 (the side facing the frame 28), an endless roller chain 34
A support member 35 is arranged along the traveling route of the guide rail 36 of the endless roller chain 34.

The guide rail 36 of the endless roller chain 34 is also arranged on the horizontal portion 28a of the frame 28 located below the support member 35. That is, as shown in FIG. 4, the endless roller chain 34 wound around the sprockets 31 and 33 travels along the upper and lower guide rails 36 and 36 arranged outside the rail 29.

The driven shaft 30 is adjusted in space with the drive shaft 32 through the adjusting bolts 64, 64, that is, the endless roller chain 3
It is configured to adjust the tension of 4,34.

As shown in FIG. 3, a motor 37 equipped with a reduction gear is installed between both rails 29, 29 in the vicinity of the drive shaft 32, and a sprocket 38 provided on the rotary shaft of the motor 37 and the drive shaft 32.
A chain 40 is wound around a sprocket 39 provided on the. Then, by rotating the motor 37 in a required direction, linear reciprocal traveling is given to the endless roller chains 34, 34 via the drive shaft 32 and the sprockets 33, 33, and as will be described later, the endless roller chains 34, 34, The pallet 51, which engages with the 34, can be carried in and out of a position where the lifter 54 (described later) is arranged.

As shown in FIGS. 2 and 3, the endless roller chain 34 is provided with a plurality of engaging means protruding over a predetermined length in the longitudinal direction thereof to the upper surface side serving as a conveying surface of the pallet 51 described later. The engaging roller 50 is rotatably supported at predetermined intervals. That is, a part of the endless roller chain 34
The link plates 34a and 34b having different shapes are alternately connected to each other.
The engagement roller 50 is pivotally supported by a protrusion formed at the center of b. In the embodiment, the engaging roller 50 is arranged only in a part of the endless roller chain 34 (a distance longer than the length of the pallet 51), but the entire endless roller chain 34 is provided. Alternatively, the engaging roller 50 may be provided.

As shown in the drawing, the position detecting means 63 of the endless roller chain 34 is arranged at the right end of the rail 29. That is, the reduction gear 42 is arranged on the rails 29, 29 via the bracket 41, and the chain 45 is provided on the sprocket 43 arranged on the rotation shaft 42a of the reduction gear 42 and the sprocket 44 arranged on the drive shaft 32. Is wrapped around. A pulse generator 46 is connected to the other end of the rotary shaft 42a via a coupling.

As shown in FIG. 4, the speed reducer 42 is provided with another rotary shaft 42b connected to the rotary shaft 42a, and a rotary disk 47 having a plurality of dogs 48 attached to the rotary shaft 42b. There is. Further, a limit switch 49 for detecting the dog 48 is arranged at a position close to the rotary disk 47, and when the base paper roll 14 is replaced, the engagement roller 50 in the endless roller chain 34 is provided.
It is possible to control so that the installation site of the above always stops above the installation position of the lifter 54.

Here, as shown in FIG. 1, the pallet 51 is formed in a cross-sectional shape, and is movably mounted on the upper surfaces of the rails 29, 29 on the inner surface sides of the two hanging parts 51a, 51a facing each other. A plurality of rollers 53 are rotatably supported. As shown in FIG. 2, a tooth portion 52 as an engaging means for engaging a plurality of engaging rollers 50 arranged in the endless roller chain 34 is formed at the lower end of the hanging portion 51a. The pallet 51 can be transported by moving the roller chain 34. That is, the load of the pallet 51 and the base paper roll 14 placed on the pallet is equal to that of the plurality of rollers.
The endless roller chain 34, which is supported by 53 and drives the pallet 51, is not overloaded. Therefore,
The durability of the endless roller chain 34 is improved and the cost can be reduced. At the center of the pallet 51, two valley-shaped inclined surfaces 51 on which the base paper roll 14 can be stably placed.
b and 51b are formed.

As shown in FIG. 3, a pantograph type lifter 54 is housed between the rails 29, 29 adjacent to the mill roll stand 10. As shown in FIG. 1, the lifter 54 supports a table 55 by a pantograph mechanism and raises and lowers it while maintaining a horizontal posture, and its basic structure is known. For example, a frame 56 is fixedly installed in the pit 27, and a lower end portion of a patograph 58 pivotally supported by a pin 57 at an intermediate portion is supported by the frame 56. The upper end of the pantograph 58 is supported on the back surface of a rectangular table 55 and driven by a required drive source such as a hydraulic cylinder (not shown) to move up and down. It should be noted that on the upper surface of the table 55, a support base 59 formed so as to follow the shape of the back surface of the pallet 51 is provided with a plurality of bolts.
It is arranged through 60.

That is, when the lifter 54 is driven upward, the rail 2
First, the support table 59 comes into contact with the pallets 51 placed on the 9, 29 from below. Then, the pallet 51 is separated from the endless roller chains 34, 34 and raised by a required distance. When the drive source is reversely biased, the support base 59 of the lifter 54 is lowered, the pallet 51 is again stably placed on the rails 29, 29, and further lowered to a fixed position below and stopped.
At this time, the tooth portions 52, 52 formed on both hanging parts 51a, 51a of the pallet 51 and the engaging rollers 50, 50 of the endless roller chains 34, 34 are formed.
And engage with each other, and the state becomes transportable.

FIG. 6 shows another embodiment of the conveyor drive system shown in FIG. 2, in which the chain 34 is connected with an engagement member 65 longer than the length of the pallet 51. . The engaging member 65 is formed with a plurality of engaging portions 50 projecting to the upper surface side that is the conveying surface of the pallet 51, and by engaging the engaging portions 50 and the tooth portions 52 of the pallet 51, The pallet 51
Is configured to carry. The engaging member 65 is connected to a pulling means such as a wire, and the engaging member is connected through the pulling means.
Of course, the 65 may be moved back and forth.

Next, FIG. 7 shows another embodiment of the base paper conveying apparatus according to the present invention, which is constructed so that the load of the pallet 51 is supported by the endless roller chains 34, 34. That is,
As in the embodiment shown in FIG. 1, an endless roller chain is provided on the facing surfaces of the pair of frames 28, 28 disposed inside the pit 27.
34, 34 are arranged in parallel so that they can travel freely, and can continuously circulate in a required direction. The pit 27 extending from the operation side of the corrugating machine is covered with a cover (not shown) so as not to hinder the passage of workers, and the pair of endless roller chains 34, 34 faces the cover. The groove of the line is opened.

Further, as shown in the figure, the pallet 51 has two valley-shaped inclined surfaces on which the base paper roll 14 can be stably placed on the central portion thereof.
51b, 51b are formed, and on the back surface of the pallet 51, the protrusion 5 that can be placed on the two roller chains 34, 34 is formed.
1c and 51c are formed to project downward.

In this way, the pallet 51 is configured to be placed on the endless roller chains 34, 34 so as to be separable,
The lifter 54 accommodated in the pit 27 adjacent to the mill roll stand 10 can separate and raise and lower.

Operation of Embodiment Next, the operation of the base paper transporting apparatus according to the embodiment thus configured will be described with respect to the case where the swing paper roll 14 is loaded into the swing arm mechanism 23 of the mill roll stand 10. For convenience of explanation, both swing arm mechanisms 2
A conveying device arranged in the middle of 3, 24 is used as a raw paper roll carry-out conveyor EX, and a conveying device arranged outside the swing arm mechanisms 23, 24 is designated separately from the raw paper roll carry-in conveyor IN.

Swing arm 1 provided on the left swing arm mechanism 23
As shown by the chain double-dashed line in FIG. 5, 3, 13 are stopped above the unloading conveyor EX in a tilted rightward posture. At this time, it is assumed that the pallet 51 has not arrived at the lifter installation position on the carry-in conveyor IN located on the left side of the swing arm mechanism 23. The left and right swing arms 13, 13 forming each pair are axially separated from each other to open the center blocks 16, 16.

Next, the base paper roll 14 is placed on the pallet 51 standing by at a position separated from the mill roll stand 10, and the motor 37 is driven to convey the pallet 51 to the conveyor.
Drive to IN. Then, the limit switch 49,
Rotating disk 47 that rotates as the endless roller chain 34 travels
When the dog 48 disposed at is detected, the motor 37 is stopped and controlled. At this time, the pallet 51 conveyed by the endless roller chains 34, 34 stops right above the lifter 54 and waits for chucking. In this state, the hydraulic cylinder provided in the swing arm mechanism 28 is urged to swing the swing arms 13, 13
Is rotated counterclockwise and stopped above the carry-in conveyor IN in a tilted posture to the left diagonally.

In this case, it is assumed that the diameter of the raw paper roll 14 becomes small due to the consumption of the raw paper, and the swinging of the swing arms 13 and 13 makes it impossible to chuck the paper tube 15. At this time, as shown in FIG. 1, the lifter 54 is operated to raise the pallet 51 together with the base paper roll 14 by a required distance from the endless roller chains 34, 34, and the paper tube 15 of the base paper roll 14 and Center the swing arms 13 and 13 with the center blocks 16 and 16. After a while
The hydraulic cylinders are energized synchronously and the swing arms 13,13
Center blocks by placing them close to each other
16 and 16 can be used to chuck the base paper roll 14.

Next, by urging the lifter 54 in the reverse direction, the pallet 51 descends, and the plurality of rollers 53 arranged on the pallet 51 are moved.
Are movably mounted on the rails 29, 29. At this time,
The tooth portions 52, 52 formed at the lower end portions of the hanging parts 51a, 51a of the pallet 51 are engaged with a plurality of engaging rollers 50 provided in the endless roller chains 34, 34, respectively, to react with each other. It becomes a state. Then, by driving the motor 37, the pallet 51 retracts from the lifter installation position.

In this embodiment, the base paper transporting device according to the present invention is arranged adjacent to a swing arm mechanism having a pair of swing arms which can be rotated right and left by a required angle about a perpendicular line extending upward. Although the case has been described, the present invention is not limited to this, and even the mill roll stand having the configuration shown in FIG. 8 can achieve the same effect by using the base paper conveying device according to the present invention. It is a thing.

EFFECTS OF THE INVENTION As described above, according to the base paper conveying apparatus of the present invention, the pallet is placed on the pair of endless ropes so as to be able to move up and down, and the pallet is moved up and down by the lifter. When the base paper roll placed on the pallet is delivered to the arm, the center block of the arm and the paper core of the base paper roll can be automatically centered regardless of the diameter of the base paper roll. As a result, it is possible to achieve automation of the operation of exchanging the base paper rolls, thereby relieving the operator from heavy labor with danger, and at the same time, advantageously reducing the cycle time required for exchanging the base paper rolls.

Further, by engaging the engaging means of the pallet for rolls of paper with the engaging means of the endless cords in a disengageable manner, the pallet can be reliably conveyed by the reciprocating motion of the endless cords. Further, by placing the pallet on the rail so that the pallet can travel via the plurality of rollers, the load of the pallet and the base paper roll placed on the pallet can be supported by the plurality of rollers and the rail, and the pallet is transported. No excessive load is applied to the endless cords for carrying.
Therefore, the durability of the endless cord can be improved and the cost can be reduced.

[Brief description of the drawings]

FIG. 1 is a front view showing a cross section of a raw paper sheet conveying apparatus according to a preferred embodiment of the present invention, FIG. 2 is a perspective view schematically showing a main part of the raw paper sheet conveying apparatus shown in FIG. 1, and FIG. 1 is a plan view of the base paper transporting device shown in FIG. 1 partially broken away, FIG. 4 is a side view of the base paper transporting device shown in FIG. 3, and FIG. 5 is a base paper supply using the base paper transporting device according to the embodiment. FIG. 6 is a front view of the apparatus, FIG. 6 is a schematic perspective view of an essential part of another embodiment of the conveyor drive system shown in FIG. 2, and FIG. 7 is a schematic front view of another embodiment of the base paper conveying device according to the present invention. FIG. 8 is a perspective view showing a schematic configuration of a mill roll stand according to the prior art, and FIG. 9 is an explanatory view showing a state in which the mill roll stand shown in FIG. . 10 …… Mill roll stand 14 …… Base paper roll, 34 …… Endless roller chain 51 …… Pallet, 54 …… Lifter

Claims (2)

(57) [Claims] 1. A base paper feeding device which is arranged adjacent to a base paper feeding device (10) and which feeds a raw paper roll (14) to a position at which the raw paper feeding device (10) can be loaded. Removably mounted on a pair of endless cords (34, 34) that are reciprocally movable and that extend in a direction intersecting the feed direction at a predetermined distance from each other,
A pallet (51) for a base paper roll which is engaged with the endless cords (34, 34) and is conveyed along with the reciprocating movement thereof, and an engagement means (50) provided on the endless cords (34, 34). , 50)
And an engagement means (52, 52) provided on the pallet (51) for the base paper roll and engageable with and disengageable from the engagement means (50, 50) of the endless rope (34, 34), and the base paper supply device. A pallet (51), which is located between the pair of endless cords (34, 34) adjacent to the (10) and on which the base paper roll (14) is placed, is provided as a pair of endless cords (34, 34). In contrast to the above, the base paper transporting device is composed of a lifter (54) for separating and ascending and descending and returning according to a required command. 2. A pair of rails (29, 29) arranged in parallel with each other at a predetermined distance in the paper feed direction, and a pair of rails (29, 29) reciprocally movable so as to be reciprocated at predetermined intervals. A pair of endless ropes (34, 34) provided with a large number of engaging portions (50) projecting outside the row, and the rails (29, 29) can travel via a plurality of rollers (53). The pallet (51), which is placed and has a tooth portion (52, 52) formed at a lower portion thereof, which is engageable with each engaging portion (50) of the endless rope (34, 34). Raw paper transport device.