JP2580156Y2 - Paper tube feeder - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paper tube feeding device attached to a winding device of a printing press.

[0002]

2. Description of the Related Art In a rotary press, a roll paper wound up in a cylindrical shape is usually used as a base paper for printing, and a predetermined printing is performed on the base paper while the base paper is pulled out.
The printed portion is wound as a printed sheet by a predetermined winding device to form a printed roll. FIG. 6 is a side view showing an example of such a winding device, and FIG. 7 is a plan view thereof. As shown in these figures, the winding device 1
Is basically composed of a pair of support walls 11 erected on the base B and a pair of turret arms 2 sandwiched between the support walls 11. The pair of turret arms 2 are pivotally supported around a central axis 12 supported by a support wall 11 so as to rotate together with the central axis 12.
Is rotated by a rotational drive of a driving means (not shown).

[0003] On both sides of such a turret arm 2, a pair of cone shafts 21 each having a pair of sharpened tips are opposed to each other.
A cylindrical paper tube 3 serving as a core for winding the printed paper P is sandwiched between each pair of cone shafts 21. These cone shafts 21 are configured to be able to move horizontally, and can correspond to the length of the paper tube 3 to be clamped.

[0004] The turret arm 2 is positioned between the winding position B 1 of the printed paper P in the direction of the printing unit U and the center shaft 12.
The rotation stops at the roll R removal position B2 on the opposite side of the roll R.

The cone shaft 21 at the winding position B1 is configured to be rotatable via a rotation shaft (not shown) fitted into the center shaft 12 which is a hollow tube and other power transmission means such as a chain or a belt. Have been. Accordingly, the cone shaft 21 located at the winding position B1 is rotated, and the paper tube 3 held therebetween is rotated. As shown in FIG. 6, the printed paper P is transferred to the paper tube 3 held by the cone shaft 21. The roll R is formed.

The roll R (not shown) located at the removal position B2 is moved so that the cone shafts 21 provided opposite to the turret arm 2 at that position are separated from each other, and are clamped between the cone shafts 21. The roll R that has been removed is removed from the turret arm 2 and carried out to the next step.

Therefore, as shown in FIG. 7, the paper tube 3 has been removed between the cone shafts 21 located at the removal position B2. Conventionally, as shown by an arrow in FIG. 7, a new paper tube 3 is mounted at this position by a human operator.

[0008]

By the way, the conventional manual mounting of the paper tube by the manual operation is performed by a required number of paper tubes 3.
Is transported to the vicinity of the removal position B2 of the roll R, and when the printed paper P is wound around another paper core 3, the paper core 3 is manually moved.
Has been operated so as to be held between the cone shafts 21.

However, such an operation must be performed on the front line where various moving parts of the machine are arranged.
It is not always safe to say that the operation is safe, and the operation itself is somewhat complicated, which has been a bottleneck during the printing process.

The present invention has been made to solve the above problems, and has as its object to contribute to labor saving by eliminating manual work.

[0011]

According to a first aspect of the present invention, a turret arm having a pair of paper tube holding members at target positions sandwiching a center shaft is supported by the turret arm. The turret arm is rotatable about a central axis so that the respective paper tube holding members are alternately located at a winding position where the printed paper is wound around the printed paper and a paper tube supply position where a new paper tube is supplied. In the winding device for printed paper configured in
A paper tube supply arm is provided rotatably about an axis, and a holding portion for holding the supplied paper tube is provided at the tip of the paper tube supply arm, and paper for supplying the paper tube toward the holding portion is provided. A tube supply means is provided, and drive means for reciprocatingly rotating the holding portion between the paper tube supply means and the paper tube holding member located at the paper tube supply position is provided. It is characterized in that the paper tube held by the holding unit is moved to the paper tube supply position only by the rotation operation of the holding unit from the paper tube supply means by driving.

[0012] The paper tube feeding device according to the second aspect of the present invention comprises:
2. The paper tube supply device according to claim 1, wherein said paper tube supply means holds a plurality of paper tubes in a side-by-side state, and falls down toward a holding portion of said paper tube supply arm at a paper tube receiving position. The paper tube guide has a slope, and a tip end of the paper tube guide is provided with a retractable stopper for preventing sliding movement of the paper tube in front of one paper tube. is there.

According to a third aspect of the present invention, there is provided a paper tube feeding device.
3. The paper tube feeding device according to claim 1, wherein a cylinder is provided as the driving unit.

[0014]

According to the paper tube supply device of the first aspect, the paper tube supply arm is held by the paper tube supply means by rotating the paper tube supply arm around the axis so that the holding portion faces the paper tube supply means. Can be transferred to the holding portion of the arm.

Then, in a state where the roll and the paper tube holding member from which the paper tube has been removed are located at the paper tube supply position,
By rotating the paper tube supply arm holding the new paper tube around the axis and positioning the holding portion on the paper tube holding member, thereafter operating the paper tube holding member in the same manner as before. Thereby, the paper tube held by the holding portion can be mounted on the paper tube holding member.

When the installation of the new paper tube to the paper tube holding member is completed, the paper tube supply arm is rotated around the axis in the opposite direction to the above, and returned to the position facing the paper tube supply means. For the supply of paper tubes.

According to the paper tube feeding device of the present invention, the plurality of paper tubes held by the paper tube guide move while sliding naturally due to the downward inclination of the paper tube guide. The further movement is prevented by projecting the.

In a state where the holding portion of the paper tube supply arm is opposed to the paper tube supply means, one paper tube is held downstream of the stopper by the holding portion so as not to slide down. Even if the paper tube supply arm is rotated around the axis toward the paper tube holding member in this state, the paper tube held in the paper tube guide by the stopper does not slide down.

After the paper tube held by the holding portion is mounted on the paper tube holding member, the paper tube supply arm is again rotated about the axis to a position facing the paper tube guide, and the stopper is retracted in this state. If this is done, only one paper tube will pass through the stopper, face the holding portion of the paper tube supply arm, and will be held there.

When the stopper is again projected, the paper tube on the upstream side of the paper tube held by the holding portion is prevented from sliding down by the stopper, so that the supply arm moves around the axis in the direction of the paper tube holding member. , The paper tube on the paper tube guide does not slide down and is maintained thereon.

According to the third aspect of the present invention, since the cylinder is provided as the driving means, the cylinder is suitably operated to rotate the paper tube supply arm forward and reverse around the axis. The holding portion of the arm can be appropriately positioned on the paper tube guide or the paper tube holding member.

[0022]

FIG. 1 is a partial cross-sectional side view illustrating a state in which a paper tube feeding device according to the present invention is attached to a winding device for printed paper. The take-up device 1 includes a pair of support walls 11 erected on a base B (however, only one of the pair of support walls 11 is shown in FIG. 1; the same applies to the turret arm 2 described below). It is basically composed of a pair of turret arms 2 sandwiched between walls 11. The pair of turret arms 2 are fixed to a center shaft 12 supported by a support wall 11, rotate together with the center shaft 12, and set a position around the center shaft 12. The center shaft 12 is rotated by the rotation of a driving unit (not shown).

On both sides of such a turret arm 2, first cone shafts 21 a having sharpened tips as paper tube holding members and facing each other at target positions around the center shaft 12.
And a second cone shaft 21b. In FIG. 1, the first cone shaft 21a
Is located at the paper tube supply position A1 where a new paper tube 3 is supplied, the second cone shaft 21b winds up the printed paper P,
Further, it is located at a winding position A2 where the roll R formed by winding is removed.

N is a paper tube gluing device for gluing the surface of the paper tube 3 mounted on the cone shaft 21 located at the paper tube supply position A1. Usually this paper tube gluing device N
Are accommodated in a position where they do not hinder the rotation of the turret arm 2, and are configured to protrude only during gluing to perform the gluing operation.

The first and second cone shafts 21a, 21
b is provided at both ends of the turret arm 2 such that each pair faces each other, and a cylindrical paper tube 3 serving as a core for winding the printed paper P is sandwiched between the opposing cone shafts 21. ing. These cone shafts 21 are configured to be able to move horizontally, and can correspond to the length of the paper tube 3 to be clamped.

The cone shaft 21 located at the winding position A2 (in FIG. 1, the second cone shaft 21b is located) is driven by a driving means (not shown) to form a central shaft which is a hollow tube. 12, continuously rotating through a power transmission means such as a drive shaft and other gears and belts provided inside 12,
As a result, the paper tube 3 sandwiched between the cone shafts 21 also rotates continuously, and the printed paper P is wound around the paper tube 3.

A roll conveying means M is provided below the winding position A2. The roll transporting means M includes a vertically movable platform M1 that moves up and down by a predetermined driving unit, and a fixed platform M2 provided on the downstream side.
A large number of rollers M4, which are rotated by a driving means (not shown), are provided on both of the mounts M1 and M2 in equilibrium with the cone shaft 21. The roller M4 is wound around a paper tube 3 on the rollers M4. A roll mounting table M3 for receiving the formed roll R is mounted.

In FIG. 1, the vertically movable base M1 is raised, and the upper surface of the roll mounting table M3 is in contact with the lower part of the roll R wound around the second cone shaft 21b. In this state, when the roll R is detached from the second cone shaft 21b and the roller body M4 is rotated clockwise, the roll mounting table M3 mounted thereon moves rightward. The roll R placed on M3 is conveyed to the fixed base M2. Note that the vertically movable pedestal M1 is normally lowered so as not to hinder the rotation of the turret arm 2.

A column 41 is erected on the base B below the paper tube supply position A1. The column 41 is provided with a paper tube supply arm 4 which is rotatably mounted around an axis 43 by driving a cylinder 42 as a driving means. A holding portion 44 for holding the supplied paper tube 3 is provided at the tip of the paper tube supply arm 4, and a paper tube supply means 5 for supplying the paper tube 3 toward the holding portion 44 is provided.

FIG. 2 is a partially enlarged view of FIG. 1 showing the paper tube supply arm 4 and the paper tube supply means 5 in detail. As shown in this figure, a connecting arm 4a is provided at the base end of the paper tube supply arm 4 so as to protrude upward. This connecting arm 4
A is provided with a long hole 4b. On the other hand, cylinder 42
The tip of a cylinder rod 42a projecting from
And the shaft 42b is connected to the connecting arm 4a.
The paper tube supply arm 4 and the cylinder 42 are connected to each other in a state of being fitted into the long hole 4b.

When the cylinder rod 42a protrudes from the cylinder 42, as shown by the solid line in FIG. 2, the paper tube supply arm 4 maintains a substantially horizontal posture, which is the paper tube receiving position. When the rod 42a is pulled back, it is set to be in the upright posture as shown by the two-dot chain line in FIG.

On the side of the paper tube supply arm 4, a cylinder 4 for finely adjusting the amount of protrusion of the holding portion 44 from the paper tube supply arm 4 is provided.
5 are provided. The cylinder rod of the cylinder 45 is connected to a receiving base 44a in which the movement of the paper tube supply arm 4 in the width direction is restricted, and a holding part 44 is attached to a distal end of the receiving base 44a.

As shown in FIG. 2, the holding portion 44 is L
The holding portion 44 holds the paper tube 3 in a state where the paper tube 3 is fitted between both sides of the L-shape. Then, in a state where the paper tube supply arm 4 holding the paper tube 3 by the holding portion 44 is rotated clockwise around the shaft 43 to be in an upright posture, the paper tube 3 held by the holding portion 44 is The dimensions are set so as to substantially correspond to the cone shaft 21 of the turret arm 2 located at the tube supply position A1.

The paper tube supply means 5 holds a large number of paper tubes 3 in a side-by-side state and has a taper guide inclined downward toward the holding portion 44 of the paper tube supply arm 4 at the paper tube receiving position. The paper tube guide 51 basically includes a retractable stopper 52 provided at the distal end of the paper tube guide 51.

The stopper 52 has a rod shape, and is provided in a casing 53 attached to the tip of the paper tube guide 51 so as to penetrate the casing 53 up and down. A rack 52 a is formed on the side surface of the stopper 52, and a pinion 54 that meshes with the rack 52 a is provided in the casing 53. The pinion 54 is connected to a rotation driving means (not shown). By operating the rotation driving means, the pinion 54 can be arbitrarily rotated forward and reverse, and the stopper 52 meshing with the pinion 54 can be moved up and down. it can.

Therefore, if the stopper 52 is made to protrude upward from the casing 53, the paper tube 3 on the upstream side thereof is blocked by the stopper 52 and is kept on the paper tube guide 51.

The upper surface of the casing 53 downstream of the stopper 52 is set to have a length substantially equal to the diameter of the paper tube 3. One side of the holding portion 44 of the paper tube supply arm 4 is dimensioned such that it can be placed on this surface.

A second stopper 55 is provided upstream of the stopper 52 by one paper tube. As shown in FIG. 2, the second stopper 55 has an L-shape when viewed from the side, and one side thereof has a shaft 55 a provided on the paper tube guide 51.
It is pivotally supported around it. The other side of the second stopper 55 projects upward from the paper tube guide 51. The paper tube 3 is prevented from sliding down on the paper tube guide 51 with the other side projecting above the paper tube guide 51.

A branch arm 55b is provided below the shaft 55a of the second stopper 55 so as to project downward. A cylinder rod 56a of a cylinder 56 is connected to the branch arm 55b. Then, the cylinder 56 is operated so that the rod 56a extends and retracts, and the second stopper 55
Is rotated around the shaft 55a in the normal and reverse directions, so that one side of the second stopper 55 protrudes and retracts from the surface of the paper tube guide 51.

Therefore, when the second stopper 55 projects upward from the paper tube guide 51 as shown by the solid line in FIG. 2, the paper stocked on the paper tube guide 51 on the upstream side of this portion. The pipe 3 is prevented from sliding down by the second stopper 55, and the second stopper 55 and the stopper 52
Is in a state where it is not subjected to the pressure caused by the sliding down of a large number of the paper tubes 3 stocked upstream thereof.

The operation of the paper tube feeding device according to the present embodiment will be described below with reference to FIGS. First, FIG. 3 shows a state in which the printed paper P is being wound on the second cone shaft 21b located at the winding position A2. The printed paper P is wound around the second cone shaft 21b, and the roll R is already formed. The vertically movable base M1 is still set at the lowered position.

In this state, as shown in the figure, the roll R of the other first cone shaft 21a has already been removed, and a new paper tube 3 has not yet been mounted here. Further, the cylinder rod 42a of the cylinder 42 is protruded, and as a result, the protrusion amount of the rod 42a is
is transmitted to the paper tube supply arm 4 via a, and the paper tube supply arm 4 rotates counterclockwise around the axis 43 so that the holding portion 44 at the tip thereof is opposed to the tip of the paper tube guide 51. Has become.

In this state, both the stopper 52 and the second stopper 55 are projected upward, and the paper tube 3 on the downstream side of the stopper 52 is held by the holding portion 44.

Next, FIG. 4 shows the state of supply of a new paper tube 3 to the first cone shaft 21a, and the second cone shaft 21b.
5 shows a state in which the roll R formed in the turret arm 2 is removed from the turret arm 2.

In this state, first, the cylinder rod 42a
The cylinder 42 is operated so as to be immersed, and the amount of operation is transmitted to the cylinder 42 via the connecting arm 4a, so that the paper tube supply arm 4 rotates clockwise around the axis 43 to be in the standing posture. . At this time, the paper tube 3 held by the holding portion 44 at the end of the paper tube supply arm 4 is located between the pair of first cone shafts 21a. In this state, by driving a driving device (not shown) to move the tips of the pair of first cone shafts 21a closer to each other, the paper tube 3 is clamped between the pair of first cone shafts 21a. It will be in the state of being attached to.

Then, in order to make the holding unit 44 correspond to the size of the paper tube 3 in advance, if necessary, a drive mechanism 45 shown in FIG.
4 is finely adjusted from the paper tube supply arm 4.

Note that, even if the paper tube supply arm 4 rotates clockwise around the shaft 43 and the holding portion 44 at the leading end of the arm 4 comes off the leading end of the paper tube guide 51, the stopper 52 of the paper tube guide 51 will not move. Since it protrudes upward from the surface, the paper tube guide 5
A large number of paper tubes 3 loaded in 1 are prevented by the stopper 52 and do not slide down.

The mounting of the new paper tube 3 on the first cone shaft 21a is performed during the operation of winding the printed paper P by the second cone shaft 21b. When this winding operation is completed, the vertically movable base M1 is raised, and the roll mounting base M
The roll R is removed from the second cone shaft 21b in a state where the roll R is mounted on the roll 3, and the roll R on the roll mounting table M3 is rotated by the clockwise rotation of the roller body M4 shown in FIG.
Is transported to the next process via the lower fixed stand M2.

When the attachment of the paper tube 3 to the second cone shaft 21b is completed, the cylinder 42 is moved so that the rod 42a projects.
Is driven, and the paper tube supply arm 4 rotates counterclockwise around the shaft 43 to be in a state shown by a dashed line. In this state, the vertically movable gantry M1 is lowered, and the turret arm 2 is rotated clockwise around the central axis 12, so that the second cone shaft 21b is moved to the paper tube supply position A as shown in FIG.
1 and the first cone shaft 21a is located at the winding position A2.

That is, FIG. 5 shows a state in which the printed paper P is newly wound on the paper tube 3 of the first cone shaft 21a located at the winding position A2. In this state, the paper tube supply arm 4 has already been moved to the shaft 4 by the operation of the cylinder 42.
3, the holding portion 44 at the end thereof is opposed to the end of the paper tube guide 51. In this state, the stopper 52 is immersed in the paper tube guide 51 (more precisely, because it is immersed in the casing 53 provided at the tip of the paper tube guide 51), and is located upstream of the stopper 52. The paper tube 3 slides down and is held by the holding portion 44 of the paper tube supply arm 4.
Is held in the state.

Since a large number of paper tubes 3 stocked upstream of the paper tube guide 51 are prevented from sliding down by the second stopper 55 projecting upward from the paper tube guide 51, the leading edge of the paper tube 3 is prevented. The tube 3 can slide into the holding portion 44 without being pressed by the sliding of the plurality of paper tubes 3,
This is convenient because it is not deformed by the pressing.

After the leading end of the paper tube 3 on the paper tube guide 51 is held by the holding portion 44 of the paper tube supply arm 4, the stopper 52 is again projected upward from the paper tube guide 51. Thereafter, the second stopper 55 is immersed in the paper tube guide 51, and one paper tube 3 on the upstream side of the second stopper 55 slides down to the upstream side of the stopper 52, and then the second stopper 55 is again It is projected upward and returns to the initial state shown in FIG.

In the state where the second stopper 55 is rotated clockwise around the shaft 55a, and the paper tube 3 located thereon is slid down to the downstream side of the second stopper 55 of the paper tube guide 51. Since the left end of the second stopper 55 jumps up above the paper tube guide 51 to prevent the succeeding paper tube 3 from slipping down, the paper tube 3 on the second stopper 55 also has a large number of subsequent paper tubes. The paper tube 3 can slide down without being pressed by the sliding of the paper tube 3, and the paper tube 3 is convenient because it does not hit the stopper 52 with a strong force.

As described above, the paper tube feeding device according to the present invention comprises a pair of cone shafts 2 provided at both ends of the turret arm 2.
First, the paper core 3 is automatically supplied to the paper core 3 alternately, which is effective in saving the manual work which has a safety problem as in the related art and in saving the printing work.

[0055]

As described above, the paper tube supply device according to the present invention is provided with a paper tube supply arm rotatably around an axis in a printed paper winding device, and a tip of the paper tube supply arm. Is provided with a holding unit for holding the supplied paper tube,
Paper tube supply means for supplying a paper tube toward the holding portion is provided, and the holding portion is reciprocated between the paper tube supply means and the paper tube holding member located at the winding position. And a paper tube held by the holding unit is moved to the paper tube supply position only by the turning operation of the holding unit from the paper tube supply unit by the driving of the driving unit. It is characterized by having.

Accordingly, the paper tube held by the paper tube supply means is transferred to the holding portion of the arm by rotating the paper tube supply arm around the axis and making the holding portion face the paper tube supply means. In a state where the paper tube holding member from which the roll and the paper tube have been removed is located at the paper tube supply position, the paper tube supply arm holding the new paper tube is rotated around the axis. The paper tube held by the holding portion is mounted on the paper core holding member by moving the paper core holding member to position the holding portion on the paper core holding member, and thereafter operating the paper core holding member in the same manner as in the related art. It can be convenient.

When the installation of the new paper tube to the paper tube holding member is completed, the paper tube supply arm is rotated around the axis in the opposite direction to the above, and returned to the position facing the paper tube supply means again. ,
For example, the operation of supplying the paper tube to the turret arm, which has been conventionally performed manually, can be completely automated, such as being ready for the supply of the next paper tube. This is extremely excellent in terms of work safety and labor saving.

The paper tube supply means is formed by a paper tube guide in which a large number of paper tubes are held in a parallel state, and which has a downward slope toward the holding portion of the paper tube supply arm at the paper tube receiving position. By providing a stopper that can slide out of the paper tube guide to prevent sliding movement of the paper tube at the front end of the paper tube guide, a large number of paper tubes held by the paper tube guide can be used. Although the paper tube guide moves while sliding naturally due to the downward inclination of the paper tube guide, further movement is prevented by projecting the stopper.

When the holding portion of the paper tube supply arm is opposed to the paper tube supply means, one paper tube is held downstream of the stopper by the holding portion so as not to slide down. Even if the paper tube supply arm is rotated in the direction of the paper tube holding member about the axis in this state, the paper tube held in the paper tube guide by the stopper does not slide down, which is convenient.

As described above, the paper tube feeding device of the present invention has a pair of cone shafts provided at both ends of the turret arm.
The paper tube is automatically supplied alternately. The use of this paper tube supply device frees the user from manual work that has safety problems and reduces the labor required for printing work. The above is also valid.

[Brief description of the drawings]

FIG. 1 is a partial cross-sectional side view illustrating a state in which a paper tube feeding device according to the present invention is attached to a printed paper winding device.

FIG. 2 is a partially enlarged view of FIG. 1 showing a paper tube supply arm and a paper tube supply means in detail.

FIG. 3 is an explanatory side view showing a state in which a printed sheet is being wound around a first cone shaft of a turret arm positioned at a winding position.

FIG. 4 is an explanatory side view showing a state in which the winding of the printed paper by the first cone axis is completed, and the turret arm is rotated clockwise by 180 ° around the central axis.

FIG. 5 is an explanatory side view showing a state in which the mounting of the paper tube on the second cone shaft is completed, and a printed sheet is newly wound around the paper tube;

FIG. 6 is a side view illustrating an example of a conventional winding device.

FIG. 7 is an explanatory view in plan view of FIG. 6;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Winding device 11 Support wall 12 Center axis 13 Driving means 2 Turret arm 21 Cone axis 3 Paper tube 4 Paper tube supply arm 4a Connecting arm 41 Post 42 Cylinder 42a Cylinder rod 43 Axis 44 Holder 45 Cylinder 5 Paper tube supply means 51 Paper tube guide 52 Stopper 52a Rack 53 Casing 54 Pinion 55 Second stopper A1 Paper tube supply position A2 Winding position B Base

Claims (3)

(57) [Scope of request for utility model registration] 1. A turret arm having a pair of paper tube holding members at target positions sandwiching the center shaft is supported by the center shaft. The turret arm is configured such that each of the paper tube holding members winds a printed sheet. In a winding device for printed paper, which is configured to be rotatable around a central axis so as to be alternately located at a winding position to be taken and a paper tube supply position at which a new paper tube is supplied,
A paper tube supply arm is provided rotatably about an axis, and a holding portion for holding the supplied paper tube is provided at the tip of the paper tube supply arm, and paper for supplying the paper tube toward the holding portion is provided. tube supply means are provided, and the paper tube delivery means the holding portion, the driving means for reciprocating rotation between the paper tube holding member which is located above the paper tube delivery position is provided, the drive means
Only the rotation of the holding part from the paper tube supply means by the drive of
Moves the paper core held by the holder to the paper core supply position.
A paper tube supply device characterized in that it is configured to be operated. 2. The paper tube guide means for holding a plurality of paper tubes in a side-by-side state, and having a downwardly tapered slope toward a holding portion of the paper tube supply arm at a paper tube receiving position. 2. The paper tube supply according to claim 1, wherein a stopper is provided at the front end of the paper tube guide so as to be able to protrude and retract to prevent sliding movement of the paper tube by one paper tube. apparatus. 3. The paper tube feeding device according to claim 1, wherein a cylinder is provided as the driving means.