JPH08113405A - Sorting device for sheet member - Google Patents

Abstract

PURPOSE: To prevent a jam of sheet members between a roller and a conveying face by rotating the roller in the direction opposite to the rotating direction of a belt at the same speed as a rotating speed of the belt in a sorting device in which sequentially fed sheet members are placed while partially overlapping to each other so as to be sorted. CONSTITUTION: A roller 4 is rotated in the direction opposite to the rotating direction of the first belt 3 at the same speed as the rotating speed of the first belt 3, and the number of sheets of fed blanks 2 is detected by means of a measuring sensor 25 while the blanks 2 are pulled into between the roller 4 and the belt 3. When the number of the fed blanks 2 reaches the predetermined sorting number, an air cylinder 24a is oscillated downward by means of a solenoid 24b, and the following blank 2 is overlaid on a partitioning plate 24c. Then, a driving device 26 is driven, and a movable member 23 is moved, while the circulating speed of the second belt 20 is increased more than that of the first belt 3, so that the blanks 2 are separated by the fixed distance in every fixed number of sheets and are sorted.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for sorting a sheet-shaped member into a predetermined number of sheets, and can be used, for example, in a carton blank manufacturing line.

[0002]

2. Description of the Related Art A conventional sorting device 100 shown in FIG.
In the production line of the carton blank (sheet-shaped member) 104 for manufacturing a paper box, the blanks 104 are divided into a predetermined number of sheets, and the belt 101 is driven to rotate in the direction of the arrow in the figure, and the conveyance surface of the belt 101. A roller 102 disposed above and a support member 103 that rotatably supports the roller 102 are provided. That roller 1
02 is an axis 102a parallel to the width direction of the belt 101
It can be rotated around the center. The support member 103 is swingably supported about a shaft 103a parallel to the rotation shaft 102a of the roller 102. The swing shaft 103a of the support member 103 is located downstream of the rotary shaft 102a of the roller 102 in the transport direction. This allows the roller 1
02 is displaceable in a direction away from the conveying surface of the belt 101, and at the same time, the belt 101 is displaced by its own weight.
Is urged in the direction toward the transport surface. On the transport surface, blanks 104 sequentially inserted between the belt 101 and the roller 102 can be placed in a state of being offset from each other and overlapping.

The conveying surface of the belt 101 and the roller 102
When the number of blanks 104 inserted between and reaches a certain number, the revolution speed of the belt 101 is temporarily increased. As a result, on the transport surface, the blank 104 is separated from the subsequent blank 104 before being put in, and the blank 104 is sorted into a predetermined number of sheets.

[0004]

DISCLOSURE OF THE INVENTION The sorting device 10 described above.
0, as shown in (1) of FIG.
Blank 1 inserted between the conveyance surface of the roller and the roller 102
When 04 is curved, it collides with the roller 102 without entering between the conveyance surface and the roller 102.
Further, when the blank 104 is divided, the orbiting speed of the belt 101 is increased to separate the blank 104 on the conveying surface from the subsequent blank 104 before being fed, the roller 10
The number of blanks 104 sandwiched between the roller 2 and the transport surface is reduced, and the roller 1 at the position indicated by the phantom line in (2) of FIG.
02 is displaced to the position indicated by the solid line, and the gap between the roller 102 and the transport surface is reduced, so that the subsequent blank 104 collides with the roller 102.

Since the blank 104 that has collided with the roller 102 cannot smoothly enter between the roller 102 and the conveying surface, the amount of deviation from the succeeding blank 104 is small. As a result, the blank, which is about to enter the gap between the roller 102 and the conveyance surface, has an increased overlapping thickness, so that the blank may not be able to pass between the roller 102 and the conveyance surface and may be clogged. Further, the blank 104 is the roller 10
When it collides with the roller 2, a moment acts to direct the roller 102 toward the transport surface with the swing shaft 103a of the support member 103 as the center, and the passage of the blank 104 is blocked, so that the roller 102 is clogged between the transport surface. There was an occasion.

Further, as shown in FIG. 7, each blank 10
4 is a notch 104 according to the assembling shape of the carton
A plurality of ears 104 'defined by a are formed. The amount of deviation between the blanks is the same as the preceding blank 10.
Even if the ears 104 ′ of 4 are warped, their ears 10
It is set so that the end surface of the ear 104 'of the subsequent blank 104 does not collide with the end surface of 4'. However, when the preceding blank 104 collides with the roller 102 and the deviation amount from the succeeding blank becomes small, as shown in FIGS. 8 and 9, the trailing blank 104 is attached to the end face of the ear portion 104 ′ of the preceding blank 104. In some cases, the end surface of the ear portion 104 ′ collided with each other and the blank 104 was damaged.

An object of the present invention is to provide a sheet-shaped member sorting apparatus which can solve the above problems.

[0008]

A feature of the present invention is that it includes a belt that is driven to rotate, and a roller that is rotatable about an axis parallel to the width direction of the belt, and the roller is the belt. Is supported so as to be displaceable in a direction toward the conveying surface and away from the conveying surface, and is urged in a direction toward the conveying surface, and the conveying surface is a sheet-like member sequentially inserted between the roller and the conveying surface. In a device that is capable of being placed in a state where the members are offset from each other and overlaps each other, and is provided with a unit that divides the sheet-shaped members into a predetermined number of sheets,
The belt is rotationally driven in the opposite direction to the belt winding direction at the same speed as the belt winding speed.

The sheet-like member is preferably sorted after being discharged from the belt. In this case, a second belt, which is driven to rotate in the same direction as the belt, is provided on the downstream side of the belt in the transport direction, and the sheet-shaped member to be transported forward and backward in the transport direction of the sheet-shaped member is provided. A partition member movable in the direction toward and away from the sheet member is provided, and counting means for counting the number of the sheet-shaped members is provided. When the sheet-shaped member is displaced to a position that partitions the member into an upstream side and a downstream side, and the sheet-shaped member upstream of the partitioning member is on the belt and the sheet-shaped member downstream of the partitioning member is on the second belt, It is preferable that the conveyance speed of the sheet-shaped member by the second belt can be made higher than the conveyance speed of the sheet-shaped member by the belt.

A support member for rotatably supporting the roller is provided, and the support member is swingably supported about an axis parallel to the rotation axis of the roller, and the swing center of the support member is It is preferably located upstream of the plane including the rotation axis of the roller and perpendicular to the conveyor surface of the belt in the conveyor direction.

[0011]

According to the structure of the present invention, since the roller is driven to rotate in the direction opposite to the belt winding direction at the same speed as the belt rotating speed, the sheet-like member colliding with the roller is repelled. It can be retracted between the roller and the transport surface without causing it. As a result, it is possible to prevent the sheet-shaped members from being clogged between the roller and the transport surface, and to properly offset the sheet-shaped members during transport, so that the sheet-shaped members can be prevented from being damaged.

By separating the sheet-shaped member after it has been carried out from the belt, it is necessary to increase the orbiting speed of the belt to separate the sheet-shaped member on the conveying surface from the subsequent sheet-shaped member before the feeding, as in the conventional case. There is no. Accordingly, since the gap between the roller and the transport surface does not change, it is possible to prevent the sheet-shaped member from colliding with the roller, prevent the sheet-shaped member from being clogged between the roller and the transport surface, and It is possible to prevent the sheet-shaped members from being damaged because the sheet-shaped members can be properly displaced when being conveyed. In this division, a second belt, which is driven to rotate in the same direction as the belt, is provided on the downstream side of the belt in the conveying direction, and the sheet-like member is conveyed forward and backward in the conveying direction of the sheet-like member. This can be performed by providing a partition member that can move in the direction toward and away from the direction and providing a counting means for counting the number of the sheet-shaped members. That is, the partition member is moved toward the sheet-shaped member every time a certain number of sheet-shaped members are counted, the sheet-shaped member on the belt is partitioned into the upstream side and the downstream side, and then the partition member is moved to the sheet-shaped member. The sheet-like member on the upstream side of the partition member is positioned on the belt, and the sheet-shaped member on the downstream side is positioned on the second belt. After that, by increasing the conveying speed of the sheet-shaped member by the second belt with respect to the conveying speed of the sheet-shaped member by the belt, the upstream sheet-shaped member and the downstream sheet-shaped member are separated by a constant distance. Separated and separated.

The swing center of the roller support member swingably supported about an axis parallel to the rotation axis of the roller is upstream of the plane including the rotation axis of the roller and perpendicular to the transport surface of the belt in the transport direction. When the sheet-shaped member collides with the roller by being located on the side, a moment acts to separate the roller from the transport surface about the swing axis of the support member. As a result, it is possible to prevent the sheet-shaped members from being clogged between the roller and the transport surface, and to properly offset the sheet-shaped members during transport, so that the sheet-shaped members can be prevented from being damaged.

[0014]

Embodiments of the present invention will be described below with reference to the drawings.

The sorting device 1 shown in FIGS. 1 and 2 is for sorting carton blanks (sheet-shaped members) 2 for producing a paper box into a predetermined number of sheets, and a drive sprocket 3a supported by a frame F indicates an arrow in the figure. The first belt 3 is driven to rotate in the A direction. A plurality of rotatable rollers 4 are provided around a shaft 4a parallel to the width direction of the first belt 3, and each roller 4 is rotatably supported by a support member 5 via a bearing 6. Each support member 5
Is supported by a drive shaft 8 via a bearing 7 so as to be swingable about an axis parallel to the rotation axis 4a of each roller 4. The drive shaft 8 is rotatably supported at both ends by a support mechanism 27.

The conveying surface of the first belt 3 on the upstream side in the conveying direction is an inclined surface 3 ′ that is directed upward in the conveying direction, and each roller 4 of the first belt 3 is located above the inclined surface 3 ′. They are arranged side by side along the width direction. Its drive shaft 8
The shaft center of is arranged on the upstream side in the transport direction with respect to the plane including the rotary shaft 4a of each roller 4 and perpendicular to the transport surface of the first belt 3. As a result, each roller 4 is connected to the drive shaft 8
By swinging about the axis center of the first belt 3, the first belt 3 can be displaced in the direction toward the conveying surface and away from it, and is urged in the direction toward the conveying surface of the first belt 3 by its own weight. .

A first pulley 9 is provided on each roller 4 so as to integrally rotate about the same axis, and a second pulley 10 corresponding to each first pulley 9 is integrally formed on the drive shaft 8 about the same axis. It is provided to rotate. A timing belt 11 is wound around the first pulley 9 and the second pulley 10. The drive shaft 8 is rotationally driven by a rotary drive device 12 attached to the support mechanism 27, and the rotation is transmitted to each roller 4 via each timing belt 11. As a result, each roller 4 is rotationally driven at the same speed as the rotation speed of the first belt 3 in the direction opposite to the rotation direction of the first belt 3 (direction of arrow B in FIG. 1).

The support mechanism 27 has a pair of brackets 13 supported by the frame F so as to be capable of reciprocating along the conveying direction of the first belt 3, and both brackets 13 support the drive shaft 8 at both ends. Each bracket 13
A bolt 15 is screwed into a nut 14 attached to the shaft 14, a shaft 16 connected to one end of each bolt 15 via a gear mechanism 17 is rotatably supported by a frame F, and a handle 18 is attached to one end of the shaft. . The rotation of the handle 18 is transmitted to each bolt 15 through the gear mechanism 17, and the rotation of each bolt 15 causes each support bracket 13 to move together with each nut 14. The swing center of each support member 5 is displaced by the movement of each support bracket 13 so that the blanks 2 of various sizes can be accommodated.

Four blank feeding devices 19 are arranged along the width direction of the first belt 3 on the upstream side of the first belt 3 in the conveying direction. Each charging device 19 has a pair of belts 19a and 19b that are driven to rotate in opposite directions. The blank 2 created by the printing process and the punching process is the first between the belts 19a and 19b.
It is sequentially inserted between the belt 3 and each roller 4. The inserted blanks 2 are placed on the conveyance surface of the first belt 3 in a state of being offset from each other and overlapping. In addition, between each pair of belts 19 a and 19 b and the first belt 3, a measurement sensor 25 for the number of inserted blanks 2 from each insertion device 19 is provided.

A sectioning mechanism 28 for the blank 2 is supported by a frame F on the downstream side of the first belt 3 in the conveying direction. The sorting mechanism 28 includes a second belt 20 that is driven to rotate in the same direction as the first belt 3 by a rotation driving device 21, and the first belt and the second belt 2 thereof.
And a partitioning mechanism 24 arranged above 0. The second belt 20 conveys the blank 2 unloaded from the first belt 3. The partitioning mechanism 24 includes a moving member 23 supported by the frame F so as to reciprocate in the conveying direction of the blank 2, a driving device 26 that reciprocally drives the moving member 23, and the moving member 23 causes each roller 4 to move.
Four air cylinders 24a swingably supported about a shaft 24a ″ parallel to the rotation shaft 4a of each of the air cylinders 2 and
A solenoid 24b for swinging and driving 4a and a partition plate (partition member) 24c attached to the tip of a rod 24a 'of each air cylinder 24a are provided. The circulating drive device 21 for the second belt 20, the drive device 26 for the moving member 23, the drive device (not shown) for each air cylinder 24a, and the solenoid 24b are connected to the control device 22. To the control device 22, a measurement sensor 25 for counting the number of inserted blanks 2 from each of the charging devices 19 is connected. The sorting mechanism 28 is controlled based on the program stored in the control device 22. The sorting mechanism 28 is in a standby state in the state shown in FIG. 1. In the standby state, the partition plate 24c is located above the first belt 3 and the second belt 20 orbits at the same speed as the first belt 3.

With reference to the flow charts shown in FIGS. 3 and 4 and the process explanatory diagram of FIG. 5, the procedure for sorting the blanks 2 by the sorting apparatus 1 will be described.

First, the measurement sensor 25 sends a signal indicating the number of inserted blanks 2 to the controller 22 (step 1). Next, it is determined whether or not the number of inserted blanks 2 reaches the number of classified sheets stored in advance (step 2). When the number of inserted sheets reaches the divided number, the control device 2
2 sends a drive signal to the solenoid 24b to swing the tip of the air cylinder 24a downward (step 3). As a result, as shown in (1) of FIG. 5, the tip of the partition plate 24c attached to the air cylinder 24a has the first
The blank 2 conveyed on the belt 3 is slightly pushed down. Then, the blank 2 on the upstream side of the pushing position in the transport direction rides on the partition plate 24c.
After a lapse of a certain period of time when a certain number of blanks 2 ride on the partition plate 24c, the control device 22 sends a signal to the drive device 26 to move the moving member 23 in the conveying direction at the same speed as the revolution speed of the first belt 3. (Step 4).
Next, as shown in (2) of FIG. 5, the partition plate 24c
Is reached between the first belt 3 and the second belt 20, the control device 22 sends a signal to the drive device 26 to stop the moving member 23 (step 5). Next, the control device 22 sends a signal to the revolving drive device 21 to make the revolving speed of the second belt 20 higher than the revolving speed of the first belt 3 (step 6). As a result, the blank 2 on the upstream side of the partition plate 24c in the transport direction and the blank 2 on the downstream side are separated by a certain distance. Next, the control device 22 sends a signal to the revolving drive device 21, and the second belt 2
The orbital speed of 0 is matched with the orbital speed of the first belt 3 (step 7). Next, as shown in (3) of FIG. 5, the control device 22 sends a signal to the drive device of the air cylinder 24a to contract the air cylinder 24a (step 8).
As a result, each partition plate 24c separates from the blank 2. Next, the controller 22 sends a signal to the solenoid 24b to swing each air cylinder 24a upward (step 9). Then, a signal is sent to the drive device of the air cylinder 24a to extend the air cylinder 24a, and a signal is sent to the drive device 26 to return the moving member 23 to the standby position (step 10). By repeating the above steps, the blanks 2 are divided into a certain number of sheets. The blanks 2 sorted into a fixed number of sheets are carried out from the second belt 20 and then sent to the next step.

According to the above construction, the roller 4 is rotationally driven at the same speed as the revolution speed of the first belt 3 in the direction opposite to the revolution direction of the first belt 3, so that the blank 2 colliding with the roller 4 is splashed. It can be drawn between the roller 4 and the conveying surface without returning. Thereby, the blank 2 can be prevented from being clogged between the roller 4 and the transport surface, and
It is possible to prevent the blanks 2 from being damaged because the blanks 2 can be properly displaced when being conveyed.

Further, since the blanks 2 are sorted out after being carried out from the first belt 3, the orbiting speed of the first belt 3 is increased and the blank 2 on the conveying surface of the first belt 3 is increased as in the conventional case. It is not necessary to separate it from the subsequent blank 2 before it is put. As a result, the gap between the roller 4 and the transport surface does not fluctuate, so that the blank 2 can be prevented from colliding with the roller 4, and the blank 2 can be prevented from being clogged between the roller 4 and the transport surface. Since the misalignment between the blanks 2 at the time of transportation can be made appropriate, the breakage of the blanks 2 can be prevented.

Further, the swing center of the roller support member 5 swingably supported about an axis center parallel to the rotation axis of the roller 4,
By being located on the upstream side in the transport direction with respect to the plane including the rotation axis of the roller 4 and perpendicular to the transport surface of the first belt 3,
When the blank 2 collides with the roller 4, a moment acts to separate the roller 4 from the transport surface about the swing axis of the support member 5. As a result, the blank 2 can be prevented from being clogged between the roller 4 and the transport surface, and the misalignment between the blanks 2 during transport can be made appropriate, so that the blank 2 can be prevented from being damaged.

The present invention is not limited to the above embodiment. For example, the present invention can be applied to a sheet-shaped member sorting device other than the carton blank 2 for producing a paper box.

[Brief description of drawings]

FIG. 1 is a side view for explaining a configuration of a sorting device according to an embodiment of the present invention.

FIG. 2 is a plan view for explaining the configuration of the sorting device.

FIG. 3 is a flowchart of a control procedure of the sorting device.

FIG. 4 is a flowchart of a control procedure of the sorting device.

FIG. 5 is an operation explanatory diagram of the sorting device.

6 (1) and (2) are explanatory views of problems of the conventional sorting device.

FIG. 7 is a plan view of carton blanks that are overlapped with each other while being properly displaced.

FIG. 8 is a plan view of carton blanks that overlap with each other in an improperly displaced state.

9 is a sectional view taken along line IX-IX in FIG.

[Explanation of symbols]

 2 Carton blank (sheet-like member) 3 First belt 4 Roller 5 Support member 28 Sorting mechanism

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Hiroshi Sanata 3-17 Amendocho, Nishinomiya City, Hyogo Prefecture

Claims (4)

[Claims] 1. A belt which is driven to rotate, and a roller which is rotatable around an axis parallel to the width direction of the belt, the roller being displaced in a direction away from a direction toward a conveying surface of the belt. It is supported so that it can be urged in the direction toward the transport surface, and the transport surface can be placed with the sheet-like members sequentially inserted between the roller and the transport surface in a state where they are offset from each other and overlap each other. In the apparatus provided with a means for sorting the sheet-shaped member into a predetermined number of sheets, the roller is rotationally driven in the opposite direction to the belt revolving direction at the same revolving speed of the belt. Device for separating the strip-shaped members. 2. The sheet member sorting apparatus according to claim 1, wherein the sheet member is sorted after being unloaded from the belt. 3. A second belt, which is driven to rotate in the same direction as the belt, is provided on the downstream side of the belt in the conveying direction, and the sheet-like member is conveyed in the front in the conveying direction and in the rear in the conveying direction. A partition member that is movable in a direction toward the member and in a direction away from the member is provided, and counting means for counting the number of the sheet-shaped members is provided. When the sheet-shaped member is displaced to a position where it is partitioned into an upstream side and a downstream side, and a sheet-shaped member upstream of the partition member is on the belt and a downstream sheet-shaped member is on the second belt. The sheet-shaped member sorting device according to claim 2, wherein the sheet-shaped member is conveyed at a higher speed than the sheet-shaped member is conveyed by the belt. 4. A support member for rotatably supporting the roller is provided, and the support member is swingably supported about an axis parallel to the rotation axis of the roller, and the swing center of the support member is The sheet-shaped member sorting device according to any one of claims 1 to 3, wherein the sheet-shaped member sorting device is located upstream of a plane including the rotation axis of the roller and perpendicular to the belt transport surface in the transport direction.