JPH0229501B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a method for disposing a plurality of rollers in the same row, such as a pick-up roller, a crease roller, and a slot roller in a pick-up cutter or crease slot machine for continuous sheet materials such as corrugated paperboard. The present invention relates to a mechanism for positioning processing tools for sheet-like materials, which are positioned at a predetermined distance from each other.

Conventionally, such a positioning mechanism is known in which one screw shaft is provided for each movable member and the required positioning is performed by rotating and stopping the screw shaft. However, in such a configuration, one screw shaft is required for each moving member as described above, which makes the structure extremely complicated and requires a large space, especially when there are a large number of moving members. In addition, since the positioning operation is complicated, it is easy to select the screw shaft to be operated or operate incorrectly, which is inconvenient in handling and causes a lot of time loss.

In view of the above, it is an object of the present invention to provide a positioning mechanism that has a simple structure and can perform positioning operations quickly and reliably despite the increase in the number of movable members.

Next, the present invention will be explained based on illustrated embodiments.

In the figure, drive shafts 2 and 3 are vertically supported by bearings in parallel to each other on a machine frame 1. As shown in FIG. These drive shafts 2, 3 have keyways 2a, 3a, respectively,
Moreover, gears 4 and 5 that mesh with each other are fixed outside the machine frame 1. Here, the drive shaft 5 located on the lower side is driven by a motor 6 via a chain 7, and therefore the drive shafts 2 and 3 perform synchronized rotation in mutually opposite directions. Further, above the drive shaft 2, there is a rotating screw shaft 8 (which may have left or right screws, or may have both) and a guide shaft 9 whose both ends are supported by the machine frame 1. The rotary screw shaft 8 is located parallel to the shaft 2, and a similar rotating screw shaft 10 and a guide shaft 11 are located below the drive shaft 3.
and the guide shaft 9, respectively. The rotating screw shaft 8 and the rotating screw shaft 10 are driven by a motor 12 via a chain 13, and perform synchronized rotation in the same direction. Furthermore, upper moving members 14 to 14 are provided on the drive shaft 2 located on the upper side, the rotating screw shaft 8, and the guide shaft 9, and the upper moving members 14 to 14 are provided on the drive shaft 2 located on the upper side, the rotating screw shaft 8, and the guide shaft 9. Similarly, lower moving members 15 to 15 are attached to the screw shaft 10 and the guide shaft 11.
is provided. These upper moving members 14~
14 and lower moving members 15-15 are cutter rollers 14a-14a and cutter roller 15, respectively.
a to 15a are provided at positions facing each other, and one set of each set is configured to cut sheet material. (In this embodiment, one set is provided on the left and right sides.) The structures of these upper moving members 14 to 14 and lower moving members 15 to 15 are the same, and the structure of the lower moving member 15 will be described below. A more detailed explanation will be given only regarding the following.

In FIG. 2, the cutter roller 15a is rotatable integrally with the drive shaft 3 and slidable in the axial direction by means of a sliding key 16 projecting into the key groove 3a of the drive shaft 3. Further, the cutter roller 15a is held by a concentric cylindrical support portion 18 provided at one end of the holder 17 via a bearing 19, and is configured to move together with the holder 17. The holder 17 also includes a cylindrical portion 20 that is slidable on the guide shaft 11 at the other end, and is threadedly engaged with the rotating screw shaft 10 at the center portion.
A cylindrical screw body 23 provided with clutch blades 21 and 22 at the front and rear is held via a bearing 24. Furthermore, the holder 17 has a support frame 26 that supports the air cylinder 25 in parallel with the rotating screw shaft 10. This support frame 26 is a side part of a rectangular parallelepiped-shaped frame 31 that includes a rear frame 28 that fixes the rear part of the cylinder body 25a via a nut 27, and a front plate 30 that fixes the tip of the piston rod 25b via a nut 29. The air cylinder 25 is held at approximately the center of the frame 31. The front plate 30 of the frame body 31 is located in front of the cylindrical screw body 23 and extends toward the rotating screw shaft 10, and as shown in FIG. A circular notch 30a is provided. Further, on both sides of the front plate 30, guides located on both sides in the diametrical direction are provided in an annular groove 34 provided in a ring-shaped front driven body 33 located on the rotational screw shaft 10 in front of the cylindrical screw body 23. A guide 36, 36 with a piece 35, 35, respectively, is attached. These guide tools 36, 36 each include a nut member 38 that is threaded into a threaded rod 37 whose one end is rotatably connected to the guide piece 35, and can be tightened via a nut 39. This allows the guide piece 35 to be set at any position. The above front driven body 33
has a sliding key 41 located in the keyway 40 of the rotating screw shaft 10, so that it can rotate as a unit with the rotating screw shaft 10 and can slide in the axial direction, and
The side facing the cylindrical screw body 23 has a clutch blade 42 that engages with the clutch blade 21 at the front of the cylindrical screw body 23. On the other hand, the rear plate 43 of the frame 31
is located rearward with respect to the cylindrical screw body 23, extends toward the rotating screw shaft 10 like the front plate 30, and is provided with a semicircular notch 43a concentric with the rotating screw shaft 10. There is. An annular rear driven body 44 is fixed to the end of the rear plate 43 and is located concentrically with the rotating screw shaft 10 and has an inner circumference larger than the shaft diameter of the rotating screw shaft 10. 44 is holder 1
It is possible to slide within a guide cylinder 45 fixed to 7. Further, the rear driven body 44 includes the front driven body 3.
3, the clutch blade 2 at the rear of the cylindrical screw body 23
A clutch blade 46 that meshes with 2 is attached.

The air cylinder 25, the cylindrical screw body 23, the front driven body 33, and the rear driven body 44 constitute a positioning mechanism 47, and when the piston rod 25b of the air cylinder 25 is extended as shown in the figure, the frame The rear plate 43 of the body 31 draws the rear driven body 44 forward, and the clutch blade 46 of the body 31 engages with the clutch blade 22 of the cylindrical screw body 23, and the cylindrical screw body 23 is locked and moves downward. The member 15 is movable back and forth as the rotating screw shaft 10 rotates. On the other hand, when the piston rod 25b of the air cylinder 25 is contracted, the clutch blade 46 of the rear driven body 44 and the clutch blade 2 of the cylindrical screw body 23
2 is disengaged, and the front driven body 3
3 is moved rearward by guide pieces 35, 35 of guide tools 36, 36 attached to the front plate 30, and the clutch blade 42 of the front driven body 33 and the clutch blade 21 of the cylindrical screw body 23 engage with each other. Therefore, the cylindrical screw body 2
3 is the front driven body 3 as the rotating screw shaft 10 rotates.
3 and rotate as one body, and the movement of the lower moving member 15 stops.

Further, the positioning mechanism 47 as described above
The present invention can also be applied to the ruled line/slot machine shown in FIG. 6 and FIG. 6, and this configuration will be explained below.

In the figure, an upper moving member 114 and a lower moving member 11
A plurality of units 5 are arranged in the width direction, forming a pair of upper and lower units. The structures of these upper moving member 114 and lower moving member 115 are almost the same, and first,
The lower moving member 115 will be explained. In FIG. 6, the yoke 117 is connected to the machine frame (not shown).
It is supported slidably in the axial direction by guide shafts 111a and 111b which are fixed to and arranged in parallel in the horizontal direction. Further, the yoke 117 is connected to a drive source (not shown) such as a motor, and is driven by drive shafts 103a and 103b arranged in parallel in the horizontal direction via sliding keys 116a and 116b, respectively.
1 are rotatably locked by guide pieces 152, 152 located at substantially diametrically opposite ends of each.
Moreover, guide rods 153 and 154 are provided at the upper part of the yoke 117 to support the lower surface of the fed sheet material. Furthermore, a rotating screw shaft 110 driven by a drive source (not shown) such as a motor is provided through the center of the yoke 117.
Furthermore, in conjunction with the rotating screw shaft 110, the yoke 117 can be switched between moving and stopping in the axial direction.
A positioning mechanism 147 is provided. On the other hand, the upper moving member 114 also has a guide shaft 109.
Yoke 1 that can slide in the axial direction with respect to a and 109b
18, and a ruling roller 155 and a slot roller which are driven by drive shafts 102a and 102b, respectively, and which are located corresponding to the ruling roller 150 and slot roller 151 of the lower moving member 115, and which act in pairs with these rollers. 156, and the positioning mechanism 148 allows the rotation screw shaft 108 to be
Move and stop along. Further, below the center of the yoke 118 of the upper moving member 114,
A feed roller 158 is pivotally supported via a support plate 159 for intermediately feeding the sheet material between it and a driven roller 157 that is pivotally supported on the machine frame.

The lower moving member 115 and the upper moving member 114
The structure of each of the positioning mechanisms 147, 148 is similar to the positioning mechanism 47 in the cutting machine, and this structure will be explained in relation to the positioning mechanism 147 of the lower moving member 115.

The positioning mechanism 147 includes a cylindrical screw body 123 which is supported by a bearing on the yoke 117 and is screwed into the rotating screw shaft 110 and has clutch blades at the front and rear, and an air cylinder 1 attached to the lower surface of the yoke 117.
25 and the guides 136 and 136 provided on the front plate 130 attached to this air cylinder 125 can be driven in the axial direction of the rotating screw shaft 110 via the annular groove 134, and the sliding key 141 allows the rotating screw shaft to be moved in the axial direction. 110 and is fixed to a front driven body 133 equipped with a clutch blade for the front clutch blade of the cylindrical screw body 123 and a rear plate 143 attached to the air cylinder 125, and is fixed to a rear plate 143 attached to the air cylinder 125 to guide the yoke 117. Cylindrical screw body 1 that is slidable on the cylinder 145
and a rear follower 144 with a clutch blade for 23 clutch blades. Therefore, the lower moving member 115 moves in the axial direction as the rotating screw shaft 110 rotates due to the expansion of the air cylinder 125, and stops moving when the air cylinder 125 contracts. Therefore, the lower moving member 115 and the upper moving member 114 are connected to the rotating screw shaft 110 on each side.
and move freely in the axial direction on the rotating screw shaft 108,
It is possible to stop and position.

The present invention is a positioning mechanism for a sheet material processing tool supported by a yoke movable along a guide shaft and for positioning a processing tool that performs a predetermined processing on a sheet material such as corrugated paper. a rotating screw shaft arranged parallel to the guide shaft and capable of forward and reverse rotation; and a rotating screw shaft that is threadedly engaged with the rotating screw shaft on its inner circumferential surface, is rotatable relative to the yoke by the yoke, and is rotatable with the yoke together with the rotating screw shaft. a cylindrical screw body supported movably in the axial direction; a pair of driven bodies having a clutch member that is engageable with the clutch member; a frame body that supports these driven bodies; a frame body that is attached to the yoke to move the frame body in the axial direction together with the driven body; and a drive device for engaging and disengaging the corresponding cylindrical screw body of the clutch member of the driven body with the clutch member, one of the driven bodies being in a free state with respect to the rotating screw shaft. is fixed to the frame body, and when the corresponding cylindrical screw body of the clutch member is engaged with the clutch member, the rotation of the cylindrical screw body with respect to the rotational screw shaft is locked, and the other side is fixed to the rotation screw body. attached to the screw shaft so as to be rotatable together with the rotating screw shaft and movable in the axial direction along the rotating screw shaft,
When the clutch member engages with the corresponding cylindrical screw body, the cylindrical screw body is configured to rotate together with the rotating shaft when the cylindrical screw body engages with the clutch member, and When the clutch member of any one of these driven bodies engages the clutch member of the corresponding cylindrical screw body, the clutch member of the other driven body is This is a positioning mechanism for a sheet material processing tool, characterized in that it is set to be in a disengaged state with respect to the clutch member.

The present invention achieves the following functions and effects with the above configuration.

(Operation) When the driven body is moved to one side by the drive device, the clutch member of one driven body engages with the clutch member of the corresponding cylindrical body, and the rotation of the cylindrical screw body about the rotation axis is engaged. will be stopped. Therefore, the cylindrical screw body moves in a direction corresponding to the rotation by being screwed into the rotating shaft, and the yoke that supports the processing tool moves along the guide shaft. When the driven body is moved from this state to the other side by the drive device, the clutch member of the one driven body is disengaged, and subsequently the clutch member of the other driven body is moved to the corresponding cylindrical shape. The cylindrical screw body is rotated together with the rotating shaft by engaging with the clutch member of the screw body. This stops the movement of the cylindrical screw body,
The yoke that supports the processing tool also stops at a fixed position. Next, when the driven body is moved in the opposite direction by the drive device, the yoke moves from the home position along the guide shaft, contrary to the above.

(Effects) (a) Even during continuous rotation of the rotating screw shaft, the processing tool can be stopped independently at any position or moved from the stopped position only by moving the driven body by the drive device. Even if there are a large number of processing tools arranged in a machine, it is no longer necessary to provide the same number of rotating screw shafts for each processing tool, and it is sufficient to provide a single rotating screw shaft common to them, simplifying the equipment. In addition, the positioning work of each processing tool can be performed by remotely controlling each drive device, thereby eliminating the need for direct manual work, thereby reducing wasted human resources and time.

(b) The processing tool moves together with the yoke along the rotating screw shaft by forward and reverse rotation of the rotating screw shaft,
Since the rotating screw shaft itself provides the power required for movement, a separate drive device for movement is not required, further simplifying the structure and facilitating maintenance.

C. The clutch member of the driven body and the clutch member of the cylindrical screw body are engaged and disengaged by simultaneously moving both driven bodies in the same direction, and this movement has the effect of disengaging the clutch member of one of the driven bodies. The action of engaging the clutch member of the other driven member can be performed simultaneously. As a result, the drive mechanism for operating the clutch and its associated members can be a single unit common to both driven bodies, which further simplifies the structure of the positioning mechanism, and further simplifies the switching operation of the clutch. Therefore, the control mechanism can be simple. Furthermore, when the clutch member of one driven body is in the engaged state, the clutch member of the other driven body is reliably maintained in the disengaged state, so that the processing tool can be stopped and moved reliably without malfunction. can.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, in which Fig. 1 is a schematic front view of a pick-and-cut cutting machine, Fig. 2 is an enlarged partial cross-sectional front view showing the lower moving member of Fig. 1 developed, and Fig. 3
The figure is a left side view of Fig. 2, Fig. 4 is a right side view of Fig. 2, Fig. 5 is a partially schematic front view of the ruled line/slot machine, and Fig. 6 is a sectional view taken along the - line in Fig. 5. It is. 1... Machine frame, 8, 10, 108, 110... Rotating screw shaft, 14, 114... Upper moving member, 15,
115...lower moving member, 17, 117, 118
... Yoke, 21, 22, 42, 46 ... Clutch blade, 23, 123 ... Cylindrical screw body, 25, 12
5...Air cylinder, 30,130...Front plate,
33,133...Front driven body, 34,134...
Annular groove, 36, 136... Guide tool, 43, 14
3... Rear plate, 44,144... Rear driven body.

Claims (1)

[Claims] 1 A positioning mechanism for a sheet material processing tool supported by a yoke movable along a guide shaft and for positioning a processing tool that performs a predetermined processing on a sheet material such as corrugated paper, wherein the guide shaft a rotating screw shaft that is arranged parallel to the yoke and capable of forward and reverse rotation; and a rotating screw shaft that is threadedly engaged with the rotating screw shaft on its inner circumferential surface, is rotatable relative to the yoke by the yoke, and is rotatable with the yoke together with the axis of the rotating screw shaft. a cylindrical screw body supported so as to be movable in a direction; and a clutch member disposed opposite to the front and rear of the cylindrical screw body and provided on the cylindrical screw body on each side facing the cylindrical screw body. a pair of driven bodies each having a clutch member that can be engaged with the driven body; a frame body that supports these driven bodies; and a frame body that is attached to the yoke to move the frame body in the axial direction together with the driven body; a driving device for engaging and disengaging the corresponding cylindrical screw body of the clutch member with the clutch member, one of the driven bodies being free from the rotating screw shaft and moving the frame body. the corresponding cylindrical screw body of the clutch member locks the rotation of the cylindrical screw body relative to the rotational screw shaft when the corresponding cylindrical screw body of the clutch member is engaged with the clutch member; The cylindrical screw body is attached to the clutch member so as to be able to rotate integrally with the rotation screw shaft and to be movable in the axial direction along the rotation screw shaft, and when the clutch member engages with the corresponding cylindrical screw body. The cylindrical screw body is configured to rotate together with the rotating shaft when engaged with the clutch member, and the distance between the driven bodies is set such that the distance between the driven bodies is set so that the distance between the cylindrical screw body and the clutch member corresponds to the cylindrical screw body. The sheet material processing tool is configured such that when the clutch member of the other driven body is engaged with the clutch member of the other driven body, the clutch member of the other driven body is disengaged from the clutch member of the corresponding cylindrical screw body. positioning mechanism.