JP2019126852A - Rotary processing device - Google Patents

Abstract

To provide a rotary processing device capable of easily adjusting a clearance between a die roll and an anvil roll.SOLUTION: In a rotary processing device 10, a die roll 22 is a fixed roll of not displacing a rotary shaft, and an anvil roll 32 is a position adjustment roller capable of displacing the rotary shaft. The anvil roll 32 is rotatably journaled to a support shaft 31. The support shaft 31 is journaled to a device frame 11 with a main center line CL1 as the rotational axis, and rotatably journals the anvil roll 32 with a sub-center line CL2 as the rotational axis. The support shaft 31 is rotatable to the device frame 11, and can adjust a clearance between the die roll 22 and the anvil roll 32 by changing the positional relationship of the sub-center line CL2 to the main center line CL1 by rotating the support shaft 31.SELECTED DRAWING: Figure 2

Description

  The present invention relates to, for example, a rotary processing apparatus for performing punching, half cutting, embossing, and the like on a processing target sheet such as a paper sheet or a plastic sheet (film).

  2. Description of the Related Art Conventionally, a rotary processing apparatus including a cylindrical die roll having a pressing blade on the outer peripheral surface and a cylindrical anvil roll disposed to face the die roll is known. In such a rotary processing apparatus, a sheet to be processed such as a film, a paper sheet, and a non-woven fabric is sandwiched between a die roll and an anvil roll, and a pressing / cutting edge of the die roll is pressed against the sheet to be processed. Perform punching and half cutting. Such a rotary processing apparatus is disclosed in Patent Document 1, for example.

JP 2012-56003 A

  In a rotary processing apparatus as disclosed in Patent Document 1, in some cases, there is a possibility to finely adjust the cutting amount to the processing target sheet. For example, when half-cutting is performed, scratches (biting into) a separator (peeling paper) in a processing target sheet are finely adjusted due to balance with an automatic label applicator in a subsequent process. In such a case, at present, it is necessary to change the height of the pressing blade in the die roll each time. Similarly, when the thickness of the separator changes, it is necessary to finely adjust the cut amount for the processing target sheet.

  When the above phenomenon occurs at the production site and the fine adjustment of the cutting amount is performed, the blade height (height of the blade) must be changed to recreate the die roll (or flexible die). The problem is that the time loss on

  An object of the present invention is to provide a rotary processing apparatus capable of easily performing fine adjustment of the cutting amount without changing the blade height of the die roll.

  In order to solve the above-mentioned problems, according to the present invention, a sheet to be processed is passed between a die roll having a press-cutting blade and an anvil roll facing the die roll, and as the die roll and anvil roll rotate. It is a rotary processing apparatus which gives a cut by the said press cutting blade to the said process target sheet, Comprising: One of the said die roll and an anvil roll is a fixed roller which a rotating shaft does not displace, The other of a die roll and an anvil roll can displace a rotating shaft The position adjusting roller is rotatably supported with respect to the support shaft thereof, and the support shaft is supported by the first rotation shaft with respect to the apparatus frame of the rotary processing apparatus. The position adjustment roller is supported by a second rotation shaft that is a shaft center different from the first rotation shaft. And the support shaft is rotatable with respect to the device frame, and rotates the support shaft to change the positional relationship of the second rotation shaft with respect to the first rotation shaft, thereby the die roll and The gap with the anvil roll can be adjusted.

  According to said structure, by rotating the support shaft of a position adjustment roller with respect to an apparatus frame, a 2nd rotating shaft displaces in parallel so that the surroundings of a 1st rotating shaft may be rotated, and accompanying this The position adjustment roller is also displaced. As described above, the clearance between the die roll and the anvil roll can be adjusted by displacing the position adjustment roller in parallel by only rotating the support shaft of the position adjustment roller, and the clearance between the die roll and the anvil roll can be easily made. Can be adjusted.

  Further, in the above-mentioned rotary processing apparatus, the anvil side bearer portion is rotatably supported by the support shaft with respect to the first rotation shaft, and the position adjusting roller is the Oldham joint from the anvil side bearer portion. It can be set as the structure to which a rotational drive force is transmitted via.

  According to said structure, even if the position adjustment roller is adjusted to any position, rotational driving force can be transmitted from an anvil side bearer part via an Oldham coupling.

  According to the rotary processing apparatus of the present invention, the gap between the die roll and the anvil roll can be adjusted simply by rotating the support shaft of the position adjustment roller, and the gap between the die roll and the anvil roll can be easily adjusted. There is an effect.

It is a figure which shows one Embodiment of this invention, and is a front view which shows schematic structure of a rotary processing apparatus. It is a figure which shows the clearance gap adjustment mechanism in the rotary processing apparatus of FIG. 1, and is a figure which shows the state which set the gap between rolls most widely. It is a figure which shows the clearance gap adjustment mechanism in the rotary processing apparatus of FIG. 1, and is a figure which shows the state which set the gap between rolls the narrowest. It is a figure which shows the locking mechanism in the rotary processing apparatus of FIG. 1, (a), (b) is a figure which shows an unlocked state, (c), (d) is a figure which shows a locked state. It is sectional drawing which shows the structure of the drive force transmission mechanism in the rotary processing apparatus of FIG. FIG. 6 shows the specific shapes of the anvil roll, the slider and the anvil side bearer portion which are components of the driving force transmission mechanism of FIG. 5; (a) is an end face view of the anvil roll facing the slider; (C) is an opposing surface end view with the anvil side bearer part in a slider, (d) is an opposing surface end view with a slider in an anvil side bearer part in a slider.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a front view showing a schematic configuration of a rotary machining apparatus 10 according to the present embodiment.

  As shown in FIG. 1, the rotary processing apparatus 10 is rotatably supported on the apparatus frame 11 so that a cylindrical die roll 22 and a cylindrical anvil roll 32 face each other.

  The die roll 22 is configured to be inserted into and fixed to the rotation shaft 21 together with the die side bearer portion 23 and the die side gear portion 24 so as to rotate integrally with the rotation shaft 21. As means for fixing the die roll 22, the die side bearer portion 23 and the die side gear portion 24 to the rotary shaft 21, known means such as shrink fitting, screwing, or press fitting may be employed.

  Although illustration is omitted in FIG. 1 for the sake of simplicity, a pressing blade formed in a cutting pattern (processing pattern) corresponding to the shape of the processed product protrudes from the outer surface of the die roll 22. The pressing and cutting blade may be formed directly on the outer surface of the die roll 22 or may be formed on a flexible die used by winding around a magnet roller. That is, when a flexible die is used, the die roll 22 is configured by the magnet roller and the flexible die. Since such a flexible die has a well-known configuration, a detailed description thereof is omitted here.

  The die-side bearer portions 23 are provided on both sides of the die roll 22 in the axial direction. The die side gear portion 24 is provided on the outer side of the die side bearer portion 23 on one end side in the axial direction of the die roll 22.

  The anvil roll 32 is inserted into and supported by the support shaft 31 together with the anvil side bearer portion 33 and the anvil side gear portion 34. The anvil roll 32, the anvil side bearer portion 33 and the anvil side gear portion 34 are configured to freely rotate with respect to the support shaft 31. The anvil side bearer part 33 and the anvil side gear part 34 are couple | bonded by the screw etc., and these become a structure which rotates integrally. Further, the anvil roll 32 is configured such that rotational force is transmitted from the anvil side bearer portion 33 coupled to the anvil side gear portion 34, and these are configured to rotate in the same phase.

  The anvil side bearer portion 33 is provided to be in contact with the die side bearer portion 23 on both sides in the axial direction of the anvil roll 32. The anvil side gear portion 34 is provided so as to mesh with the die side gear portion 24 outside the anvil side bearer portion 33 on one end side in the axial direction of the anvil roll 32.

  In the rotary processing apparatus 10, the rotary shaft 21 is a drive shaft rotationally driven by a motor (not shown), and when the rotary shaft 21 is rotationally driven, the die roll 22 is integrated with the rotary shaft 21. Rotate. On the other hand, the rotational driving force is transmitted to the anvil roll 32 via the die side gear portion 24, the anvil side gear portion 34 and the anvil side bearer portion 33. Thereby, the die roll 22 and the anvil roll 32 are rotationally driven by one motor.

  In the rotary processing apparatus 10, the die roll 22 and the anvil roll 32 are rotationally driven, and the processing target sheet is passed between the rotating rolls. At this time, punching and half cutting are performed by cutting a predetermined amount of a cutting edge formed on the die roll 22 into a sheet to be processed.

  The rotary processing apparatus 10 also has an adjustment knob 41 for adjusting a gap between the die roll 22 and the anvil roll 32 (hereinafter referred to as an inter-roll gap). The adjustment knob 41 is connected and fixed to one end of the support shaft 31 of the anvil roll 32, and the support shaft 31 can be rotated with respect to the apparatus frame 11 by turning the adjustment knob 41.

  Further, the end of the support shaft 31 on the side to which the adjustment knob 41 is connected and fixed is axially supported via a bushing 42 with the apparatus frame 11. The bush 42 is fixed to the apparatus frame 11, and the support shaft 31 is rotatably supported with respect to the bush 42. Further, the bush 42 is provided with a lock handle 43, and the lock state / unlock state of a gap adjusting mechanism, which will be described later, can be switched by rotating the lock handle 43. Then, only when the gap adjusting mechanism is in the unlocked state, it is possible to adjust the gap between the rolls by turning the adjusting knob 41.

[Space adjustment mechanism]
The rotary processing device 10 has a gap adjusting mechanism for adjusting the gap between rolls. The clearance adjustment mechanism will be described in detail with reference to FIGS. 2 and 3. 2 and 3 are cross-sectional views of the anvil roll 32, the anvil-side bearer portion 33, the anvil-side gear portion 34, the adjustment knob 41, and the bushing 42. For the apparatus frame 11 and the die roll 22, virtual lines ( It has shown by the dashed-two dotted line). FIG. 2 shows a state in which the gap between rolls is set to be the widest, and FIG. 3 shows a state in which the gap between rolls is set to be the narrowest. In addition, although the rotary processing device 10 has a lock mechanism and a drive force transmission mechanism described later, the lock mechanism and the drive force transmission mechanism are not shown in FIGS. 2 and 3 for simplification of the drawings. ing. Further, in the rotary processing device 10, the movement of each member axially supported by the support shaft 31 is restricted using a ring stopper or the like, but in FIGS. 2 and 3, the illustration of the ring stopper is Omitted.

  In the rotary processing device 10, the die roll 22 is a fixed roller whose rotation axis is not displaced, whereas the anvil roll 32 is a position adjustment roller whose rotation axis can be displaced. The rotary processing device 10 is configured to adjust the gap between the rolls by displacing the rotation axis of the anvil roll 32.

  As shown in FIGS. 2 and 3, the anvil roll 32 and the anvil-side bearer portion 33 are pivotally supported with a bearing interposed between the support shaft 31 and can freely rotate with respect to the support shaft 31. . However, the center axis of the support shaft 31 is not one along the longitudinal direction of the support shaft 31, and the support shaft 31 has a main center line CL1 and a sub center line CL2 that is an axis different from the main center line CL1. It has become the composition which it possesses. That is, the sub center line CL2 is parallel to but slightly offset from the main center line CL1, and the sub center line CL2 is eccentric to the main center line CL1.

  Specifically, the support shaft 31 is pivotally supported on the apparatus frame 11 (and the bushing 42) with the main center line CL1 as a rotation axis (first rotation axis). That is, the support shaft 31 is rotatable around the main center line CL1. Therefore, even if the adjustment knob 41 is turned to rotate the support shaft 31, the position of the main center line CL1 does not change. Further, since the anvil side bearer portion 33 and the anvil side gear portion 34 are also pivotally supported on the support shaft 31 with the main center line CL1 as a rotation axis, the positions of the anvil side bearer portion 33 and the anvil side gear portion 34 do not change.

  On the other hand, the sub centerline CL2 is eccentric by a predetermined amount with respect to the main centerline CL1. Therefore, when the adjustment knob 41 is turned to rotate the support shaft 31, the sub center line CL2 is displaced in parallel so as to rotate around the main center line CL1. Further, in the rotary processing device 10, the anvil roll 32 is pivotally supported by the support shaft 31 with the sub center line CL2 as a rotation axis (second rotation axis). For this reason, when the support shaft 31 is rotated to displace the sub center line CL2, the anvil roll 32 is also displaced accordingly.

  Specifically, as shown in FIG. 2, when the sub center line CL2 is positioned immediately below the main center line CL1 (so that the sub center line CL2 is farthest from the rotating shaft 21 of the die roll 22), the anvil roll 32 is also moved. It will leave | separate from the die roll 22, and the gap between rolls can be adjusted widely. Further, as shown in FIG. 3, when the sub center line CL2 is positioned immediately above the main center line CL1 (the sub center line CL2 is closest to the rotation axis 21 of the die roll 22), the anvil roll 32 also contacts the die roll 22. The gap between the rolls can be adjusted narrowly.

  In this gap adjustment mechanism, for example, if the eccentric amount of the sub center line CL2 with respect to the main center line CL1 is 0.05 mm, the gap between rolls can be adjusted within a range of ± 0.05 mm.

  Thus, the clearance adjustment mechanism of the rotary machining apparatus 10 according to the present embodiment only adjusts the gap between the rolls by rotating the adjustment knob 41 and rotating the support shaft 31 to displace the anvil roll 32 in parallel. It can be carried out. For this reason, when adjusting the gap between the die roll 22 and the anvil roll 32, the gap can be adjusted very easily as compared with the conventional gap adjusting method that requires adjustment on both sides in the axial direction.

[Lock mechanism]
The gap adjusting mechanism described above adjusts the gap between rolls by rotating the adjusting knob 41 to rotate the support shaft 31 and changing the positional relationship between the main center line CL1 and the sub center line CL2. However, during operation of the rotary processing apparatus 10 (that is, during processing of the processing target sheet), it is necessary to lock the support shaft 31 without rotating so that the adjusted gap between rolls does not fluctuate. For this reason, the rotary processing device 10 has a lock mechanism for locking the rotation of the support shaft 31. This locking mechanism will be described in detail with reference to FIG.

  FIGS. 4A and 4B are diagrams showing a locked state in which the rotation of the support shaft 31 is locked to make it impossible to adjust the gap between the rolls, and FIGS. 4C and 4D are the gaps between the rolls. It is a figure which shows the unlocking state which enables adjustment of. FIGS. 4B and 4D are cross-sectional views taken along line AA in FIGS. 4A and 4C, and FIGS. 4A and 4C are FIGS. 4B and 4D, respectively. It is a BB sectional view.

  As can be seen from the comparison between FIGS. 4B and 4D, in this locking mechanism, the unlocking state and the locking state can be switched by rotating the lock handle 43. Specifically, as shown in FIGS. 4A and 4C, the lock handle 43 is connected to the externally threaded lock shaft 44. The lock shaft 44 is fitted with a wedge member 45 having a female thread. In the above lock mechanism, it is possible to move the wedge member 45 along the lock shaft 44 by rotating the lock handle 43.

  In the locked state shown in FIGS. 4A and 4B, the wedge member 45 is moved so as to be drawn toward the support shaft 31 so that the wedge member 45 is pressed against the support shaft 31. The support shaft 31 cannot be rotated by the frictional force between the support shaft 31 and the support shaft 31. On the other hand, in the unlocked state shown in FIGS. 4C and 4D, the wedge member 45 is moved away from the support shaft 31 so that the wedge member 45 is not in contact with the support shaft 31. .

  That is, the lock mechanism in the rotary processing device 10 switches contact / non-contact between the wedge member 45 and the support shaft 31 by rotation of the lock handle 43. In the locked state in which the wedge member 45 and the support shaft 31 are in contact with each other, the support shaft 31 cannot be rotated by the frictional force between the small diameter portion 44 a and the support shaft 31.

  However, the structure of the locking mechanism described above is merely an example, and the present invention is not limited to this.

[Drive force transmission mechanism]
In the rotary processing apparatus 10 described above, the rotary shaft 21 of the die roll 22 is used as a drive shaft, and the anvil roll 32 is passed from the rotary shaft 21 via the die side gear portion 24, the anvil side gear portion 34, and the anvil side bearer portion 33. The rotational driving force is transmitted. However, while the anvil-side bearer portion 33 has the main center line CL1 as the rotation axis, the anvil roll 32 has the sub-center line CL2 as the rotation axis, and the anvil-side bearer portion 33 and the anvil roll 32 have the same rotation axis. Because it is not, it can not be rotated integrally. For this reason, the rotary processing apparatus 10 has a driving force transmission mechanism for transmitting a rotational driving force between the anvil side bearer portion 33 and the anvil roll 32. This driving force transmission mechanism will be described in detail with reference to FIGS.

  FIG. 5 is a cross-sectional view showing a configuration of the driving force transmission mechanism according to the present embodiment. In FIG. 5, the support shaft 31 is not shown. This drive force transmission mechanism has a structure known as a so-called Oldham coupling, and transmits a drive force between the anvil side bearer portion 33 and the anvil roll 32 via the slider 35.

  FIG. 6 shows the specific shapes of the anvil roll 32, the slider 35 and the anvil side bearer portion 33 which are components of the driving force transmission mechanism, and (a) shows the end face of the anvil roll 32 facing the slider 35. (B) is an end surface view of the slider 35 facing the anvil roll 32, (c) is an end surface view of the slider 35 facing the anvil side bearer portion 33, (d) is a slider 35 in the anvil side bearer portion 33. Is an end view of the opposite surface of Moreover, the cross section of each component shown by FIG. 5 is also CC cross section of FIG.

  As shown in FIGS. 6 (b) and 6 (c), the slider 35 is formed in an annular shape, and on the surface of the slider 35 facing the anvil roll 32, it extends radially from the center and is 180 ° circumferentially. Two key grooves 35a arranged at intervals are formed. Similarly, on the surface of the slider 35 facing the anvil-side bearer portion 33, two key grooves 35b extending in the radial direction from the center and arranged at intervals of 180 ° in the circumferential direction are formed. Further, the key groove 35a and the key groove 35b are arranged at intervals of 90 ° in the circumferential direction.

  As shown in FIG. 6A, on the surface of the anvil roll 32 facing the slider 35, two protrusions (for example, square keys) 32a arranged at intervals of 180 ° in the circumferential direction are formed. Further, as shown in FIG. 6D, two protrusions (for example, square keys) 33a arranged at intervals of 180 ° in the circumferential direction are formed on the surface of the anvil-side bearer 33 facing the slider 35. Has been. The width of the protrusions 32a and 33a in the circumferential direction is slightly smaller than the width of the key grooves 35a and 35b. For example, a pin may be inserted into the end face of the anvil roll 32 or the anvil-side bearer 33 and the pins 32a and 33a may be used as the protrusions 32a and 33a.

  Between the anvil side bearer portion 33 and the slider 35, as shown in FIG. 5, the protrusion 33a of the anvil side bearer portion 33 engages with the key groove 35b of the slider 35, and the rotation of the anvil side bearer portion 33 is a protrusion It is transmitted to the slider 35 via the portion 33a and the keyway 35b. Further, since the protrusion 33a can move along the key groove 35b, the slider 35 can rotate while sliding in the radial direction with respect to the anvil side bearer 33.

  On the other hand, between the anvil roll 32 and the slider 35, the projection 32a of the anvil roll 32 engages with the key groove 35a of the slider 35, and the rotation of the slider 35 is via the key groove 35a and the projection 32a. Is transmitted to. Further, since the protrusion 32 a can move along the key groove 35 a, the slider 35 can rotate while sliding in the radial direction with respect to the anvil roll 32.

  Thus, the slider 35 can rotate while sliding in the radial direction with respect to both the anvil side bearer portion 33 and the anvil roll 32, and the key groove 35a and the key groove 35b are arranged in the circumferential direction. Since they are arranged at intervals of 90 °, the rotational driving force can be transmitted via the slider 35 even if the rotational axis of the anvil-side bearer portion 33 and the rotational axis of the anvil roll 32 are shifted.

  In addition, the rotary processing apparatus 10 in the said description illustrated the structure which adjusts the gap between rolls by displacing the rotating shaft of the anvil roll 32, without displacing the rotating shaft of the die roll 22. FIG. However, the present invention is not limited to this, and the rotation axis of the die roll 22 may be displaced to adjust the gap between the rolls without displacing the rotation axis of the anvil roll 32.

  Moreover, the rotary processing apparatus 10 in the said description illustrated the structure which transmits a driving force from the die side gear part 24 to the anvil side gear part 34 by making the rotating shaft 21 into a drive shaft. However, the present invention is not limited to this, and the driving force is first transmitted to the anvil side gear portion 34 and the driving force is transmitted from the anvil side gear portion 34 to the die side gear portion 24. Good.

  The embodiments disclosed herein are illustrative in all respects and do not serve as a basis for limited interpretation. Therefore, the technical scope of the present invention is not interpreted only by the above-mentioned embodiment, and is defined based on the statement of a claim. Moreover, all the changes within the meaning and range equivalent to a claim are included.

DESCRIPTION OF SYMBOLS 10 Rotary processing apparatus 11 Apparatus frame 21 Rotating shaft 22 Die roll (fixed roller)
23 Die side bearer portion 24 Die side gear portion 31 Support shaft 32 Anvil roll (position adjustment roller)
32a Protruding portion 33 Anvil-side bearer portion 33a Protruding portion 34 Anvil-side gear portion 35 Slider 35a Key groove 35b Key groove 41 Adjustment knob 42 Bush 43 Lock handle 44 Lock shaft 44a Small diameter portion CL1 Main center line (first rotation shaft)
CL2 sub center line (second rotation axis)

Claims (2)

A rotary that passes a processing target sheet between a die roll having a pressing blade and an anvil roll facing the die roll, and cuts the processing target sheet with the pressing blade as the die roll and anvil roll rotate. Processing equipment,
One of the die roll and the anvil roll is a fixed roller that does not displace the rotating shaft, and the other of the die roll and the anvil roll is a position adjusting roller that can displace the rotating shaft,
The position adjustment roller is rotatably supported on its support shaft,
The support shaft is pivotally supported by a first rotation shaft with respect to a device frame of the rotary processing device, and the position adjustment roller is disposed on a second rotation shaft having an axis different from the first rotation shaft. To be rotatably supported.
The support shaft is rotatable with respect to the device frame, and the support shaft is rotated to change the positional relationship of the second rotation shaft with respect to the first rotation shaft, whereby the die roll and the anvil roll A rotary processing apparatus capable of adjusting a gap. The rotary processing apparatus according to claim 1, wherein
The anvil side bearer portion is rotatably supported by the support shaft with respect to the first rotation shaft,
The position adjusting roller has a configuration in which a rotational driving force is transmitted from the anvil-side bearer portion via an Oldham joint.

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