JP2020090371A - Roller unit - Google Patents

Abstract

To provide a roller unit nonobstructive in attachment/detachment of a winding core and a roller, etc.SOLUTION: A take-up device 22 comprises a roller unit 32 including adjustment rollers 28, 30 which displace with respect to a winding shaft 24 corresponding to a change of thickness of a roll 14. The roller unit 32 is so constituted that a unit frame 88 supporting the adjustment rollers 28, 30 is arranged on the side of an unwinding part 18 for unwinding a web 12 from the winding shaft 24 to move toward the unwinding part 18 side.SELECTED DRAWING: Figure 15

Description

The present invention relates to a roller unit provided in a winding device that forms a roll by winding a web on a winding shaft in a web processing machine such as a slitter.

The winding device that winds the web to form a roll limits the air that is caught in the roll by rolling the web while the touch roller is in contact with the peripheral surface of the roll, and prevents slipping and deformation. (For example, see Patent Document 1).

JP 2001-151392 A

In addition to the main touch roller, the winding device may be provided with an auxiliary touch roller used depending on the properties of the web. In this case, it is required that both the main touch roller and the auxiliary touch roller do not interfere with the attachment/detachment of the winding core or the roll.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems of the conventional technique, and has been proposed in order to solve these problems. An object of the present invention is to provide a roller unit that does not interfere with the attachment and detachment of a winding core or roll.

In order to overcome the above problems and achieve the intended purpose, the roller unit of the invention according to claim 1 of the present application is
A roller unit that is provided in a winding device that forms a roll by winding a web on a winding shaft in a web processing machine and that has an adjusting roller that is displaced with respect to the winding shaft according to a change in the thickness of the roll. hand,
A unit frame for supporting the adjusting roller in the roller unit is arranged on the unwinding portion side for unwinding the web with respect to the winding shaft,
The unit frame is provided so as to be linearly movable from a position close to the winding shaft toward the unwinding portion side,
As the adjusting roller,
A first adjusting roller provided on the unit frame, which is linearly displaced with respect to the winding shaft with linear movement of the unit frame;
And a second adjusting roller provided at the other end of a roller arm whose one end is rotatably supported around the axis orthogonal to the flow direction of the web with respect to the unit frame. ..

According to the invention of claim 1, the unit frame in the roller unit is provided on the side of the unwinding portion that is opposite to the front side of the winding device with respect to the winding shaft, and the unit frame moves to the unwinding portion side. Therefore, the unit frame does not obstruct the access from the front side of the winding device. Further, since the first adjusting roller and the second adjusting roller are provided on the unit frame and move together as the unit frame moves to the unwinding portion side, the first adjusting roller and the second adjusting roller move when the unit frame is accessed from the front side. The adjusting roller and the second adjusting roller do not interfere. Therefore, the roller unit does not interfere with the work performed from the front side of the winding device, such as when the winding core is attached to the winding shaft or when the roll is removed from the winding shaft.

In the invention according to claim 2, the first adjusting roller and the second adjusting roller move to the side opposite to the front surface of the winding device as the unit frame moves to the unwinding portion side, and The gist is to withdraw to a position away from the roll supported by the winding shaft.

According to the second aspect of the invention, the first adjusting roller and the second adjusting roller move to the side opposite to the front side of the winding device as the unit frame moves to the unwinding portion side, so that the winding shaft is attached to the winding shaft. Since it retracts to a position away from the supported roll, it does not hinder access from the front side of the winding device.

In the invention according to claim 3, the gist is that the unit frame is arranged below a cutting mechanism for cutting the web in a pass line configured to guide the web formed by a main body roller.
According to the invention of claim 3, since the unit frame is arranged below the cutting mechanism that cuts the web in the pass line that guides the web constituted by the main body rollers, the front side of the winding device. Out of the way when accessing the cutting mechanism from.

According to the roller unit of the present invention, it does not interfere with the attachment/detachment of the winding core or the roll.

It is explanatory drawing which shows roughly the slitter which concerns on embodiment of this invention. It is a side view which shows the unwinding part of the slitter of embodiment. It is a schematic perspective view which shows the unwinding part of the slitter of embodiment from the front side of this unwinding part. It is a schematic perspective view which shows the unwinding part of the slitter of embodiment from the back side of this unwinding part. It is a schematic perspective view which shows the guide unit and linkage means of the unwinding part of the embodiment from the front side of the unwinding part. It is a perspective view which shows roughly the positioning structure of the arm of the unwinding part of embodiment from the front side of this unwinding part. It is a perspective view which shows roughly the positioning structure of the arm of the unwinding part of embodiment from the back side of this unwinding part. It is sectional drawing which fracture|ruptures the arm of embodiment and shows the positioning structure of this arm, (a) is in a fixed position, (b) is in a releasing position. It is a perspective view which shows the cutting mechanism of embodiment roughly. It is a side view which shows the cutting mechanism of embodiment, (a) is the state which attached the cutter holder to the shaft, (b) shows the state which attaches and detaches the cutter holder to the shaft. It is a side view which shows the cutter holder of embodiment from the opposite side to FIG. 10, (a) has a cutter holder in a cutting position, (b) has a cutter holder in a retracted position. It is a top view which notches and shows a cutter holder of an embodiment. It is a perspective view which shows roughly the adjustment roller unit of embodiment from the front side of the winding part. It is a perspective view which shows schematically one of the adjustment roller units of embodiment. It is a side view which shows schematically the adjustment roller unit of embodiment, (a) shows the state at the time of winding of a web, (b) shows the state which retracted the adjustment roller unit from the processed roll.

Next, a roller unit according to the present invention will be described below with reference to the accompanying drawings with reference to preferred embodiments.

As a web processing machine for performing a predetermined treatment on a web, a slitter for cutting the web into a required width and winding it into a roll, a finishing web for a web once wound on a processing line, a secondary processing, etc. Examples include a rewinder that rewinds after processing. In the following embodiments, a slitter will be described as an example. Examples of the web include a film made of a synthetic resin, paper, and a metal foil such as aluminum, and a roll-shaped product obtained by winding the web around a winding core is called a roll. Then, in particular, when the web is unrolled, the roll before the treatment is referred to as "raw roll", and the roll formed by winding the web after the predetermined treatment is referred to as "treated roll".

(Outline of slitter)
As shown in FIG. 1, a slitter (web processing machine) 10 according to an embodiment includes an unwinding portion (roll supporting device) 18 that supports a raw roll 14, and a cutter 20 that cuts the web 12 with a predetermined width. And a winding unit (winding device) 22 that winds the web 12 cut into a predetermined width to form a processed roll 16. In the slitter 10, a plurality of main body rollers R installed between the unwinding section 18 and the winding section 22 constitute a pass line along which the web 12 travels from the unwinding section 18 toward the winding section 22. ing. Further, the slitter 10 is provided with an adjusting roller unit (roller unit) 32 having adjusting rollers 28 and 30 for adjusting the web 12 to be wound around the winding core 13 held by the winding shaft 24 in the winding portion 22. Then, the slitter 10 cuts the web 12 unwound from the original roll 14 supported by the unwinding part 18 in the flow direction of the web 12 by the cutter 20 in the middle of the pass line to obtain a web having a predetermined width. The roll 12 is divided into a plurality of portions by the winding portion 22 and wound around the winding core 13 to obtain a treated roll 16 around which the web 12 having a predetermined width is wound.

In the following description, in the slitter 10, the side in which the unwinding portion 18 is provided is referred to as the front side, and the side in which the winding portion 22 is provided is referred to as the rear side. Therefore, in the embodiment, the front side of the unwinding section 18 where the worker accesses the unwinding section 18 is the front side of the slitter 10, and the front side of the winding section 22 where the worker accesses the winding section 22 is , The rear surface of the slitter 10. In the slitter 10, the horizontal direction intersecting the front-rear direction is referred to as the left-right direction, and the raw roll 14 and the processed roll 16 are supported so that the left-right direction is the axial direction of the winding core 13, and the width of the web 12 is increased. The direction is left and right. The traveling direction of the web 12 from the unwinding portion 18 to the winding portion 22 via the pass line is referred to as the flow direction of the web 12. The flow direction of the web 12 is guided to the main body roller R as shown in FIG. The direction is changed.

(Unwinding part)
As shown in FIGS. 2 to 4, the unwinding unit 18 includes a raw roll supporting portion 34 that supports the raw roll 14 and two guide rollers that guide the web 12 unwound from the raw roll 14. And a guide roller unit 36 having 38, 38. In the unwinding portion 18, the raw fabric roll 14 supported by the raw fabric roll supporting portion 34 and the guide rollers 38, 38 (guide roller unit 36) are synchronized with each other to move in the left-right direction (the winding core 13 in the raw fabric roll 14). It is configured to move in the axial direction). The unwinding unit 18 determines the lateral displacement of the web 12 by detecting the edge of the web 12 pulled out from the web roll 14 by a sensor (not shown), and based on this result, the web roll 14 is detected. The guide rollers 38, 38 are reciprocated in the left-right direction. As a result, the unwinding unit 18 prevents the web 12 drawn from the original roll 14 from meandering due to the displacement of the web 12 wound around the original roll 14 in the left-right direction. To prevent.

(Unwinding part-original roll supporting part)
As shown in FIGS. 2 to 4, the original roll support portion 34 is provided on the main body frame 11 of the slitter 10, and has an arm base 42 capable of changing its posture with respect to the main body frame 11 and a left and right direction on the arm base 42. It is provided with a pair of arms 44, 44 provided separately. Each arm 44 is provided so as to be movable in the left-right direction with respect to the arm base 42. The raw fabric roll support portion 34 supports the winding core 13 from the left and right sides by a pair of left and right arms 44, 44, and holds the raw fabric roll 14 rotatably around an axis between the arms 44, 44.

(Unwinding part-original roll supporting part-arm base)
As shown in FIG. 2, the arm base 42 has a pair of arms 44, 44 provided so as to project forward from the front surface of the plate-shaped arm base 42 so that the posture can be displaced so as to move in the vertical direction. There is. Specifically, the lower portions of the pair of base support pieces 42a provided on the rear surface of the arm base 42 in the left-right direction are attached to the body frame 11 via the base rotation shaft (rotation shaft) 43, respectively. There is. The rear end portion of the base support piece 42a is moved by the elevating actuator (first actuator) 46 so that the arm base 42 is attitudeally displaced around an axis extending in the left-right direction with the base rotation shaft 43 as a fulcrum. As a result, the arm base 42 has a rising posture (see FIG. 2A) in which the arm base 42 extends along the main body frame 11 and both arms 44, 44 horizontally extend forward. The arm base 42 is tilted forward so that both arms 44, 44 are lowered relative to the lowering posture (see FIG. 2B). The original fabric roll support part 34 lifts the original fabric roll 14 by sandwiching the conveyed original fabric roll 14 between both arms 44, 44 in the descending posture and displacing the original fabric roll 14 from the descending posture to the ascending posture. The web 12 is unwound from the original roll 14. As shown in FIG. 4, the elevating actuator 46 is connected to the left side base support piece 42a of the left and right base support pieces 42a, 42a, which is arranged outside the main body frame 11, and is installed outside the main body frame 11. Has been done.

(Unwinding part-source roll supporting part-arm)
As shown in FIG. 3, each arm 44 is supported by the arm base 42 via an arm slider 48 composed of a rail provided on the front surface of the arm base 42 so as to extend in the left-right direction and a core attached to the rail. ing. Each arm 44 can be moved in the left-right direction with respect to the arm base 42 by an arm slider 48. The arm 44 is provided with a gap between the front surface of the arm base 42 and the rear surface of the arm pedestal 44 a facing the front surface of the arm base 42 by the arm slider 48. Both arms 44, 44 are connected to each other by a linking means 52, and are integrally reciprocated in the left-right direction by a guide actuator (second actuator) 50. Further, both arms 44, 44 are configured such that the movement in the left and right direction is interlocked with the guide roller unit 36 by the linking means 52.

(Unwinding part-guide roller unit)
As shown in FIGS. 2 to 4, the guide roller unit 36 is located above the arm base 42 and installed on the base side of the arm 44. The guide roller unit 36 is provided so as to be parallel to the winding core 13 supported by both arms 44, 44, and has two guide rollers 38, 38 for guiding the web 12 drawn from the original roll 14. is doing. The guide roller unit 36 is provided on the main body frame 11 so as to be movable in the left-right direction via the unit slider 54, and is reciprocated in the left-right direction by the guide actuator 50 that moves the arm 44. Here, the guide roller unit 36 is configured such that the linkage means 52 links the movements of the arms 44, 44 in the left-right direction.

(Unwinding unit-coordinating means)
As shown in FIG. 3, the linking means 52 is linked to both arms 44, 44 and is linked to the guide roller unit 36 and a first linking portion 56 that is posture-displaced together with the arm base 42. The second link section 60 is connected to the first link section 56 via the allowable variable section 58. As shown in FIG. 5, the first linking portion 56 has a front supporting portion 56 a arranged on the front side of the arm base 42. The front support portion 56a is movably attached to the arm base 42 in the left-right direction via a linking slider 59 using a rail on the lower side of the front surface of the arm base 42 of the arm slider 48 (see FIG. 3). Further, the first linking portion 56 has a pair of arm locking portions 57, 57 provided so as to extend in the left-right direction from the upper portion of the front supporting portion 56 a, and a positioning structure described later with respect to the arm locking portion 57. The arm 44 is fixed by. The second linking portion 60 is a columnar member whose upper end is fixed to the guide roller unit 36 arranged above the arm base 42 and which is arranged on the rear side of the arm base 42 so as to extend vertically. 4). The variable portion 58 is a pivot that hinge-connects the lower end portion of the front support portion 56a of the first linkage portion 56 and the lower end portion of the second linkage portion 60 under the arm base 42. The linking means 52 is arranged such that the axis of the variable portion 58 extending in the left-right direction is coaxial with the base rotation shaft 43 that serves as a fulcrum of the attitude displacement of the arm base 42 (see FIG. 3).

As shown in FIG. 4, in the linking means 52, the second linking section 60 is reciprocated in the left-right direction by the guide actuator 50 installed between the main body frame 11 and the second linking section 60. As a result, the arm 44 fixed to the arm locking portion 57 of the first linkage portion 56 connected to the second linkage portion 60 and the guide roller unit 36 fixed to the upper end portion of the second linkage portion 60 are moved in the left-right direction. Move to. Further, in the linking means 52, the front support portion 56a of the first linking portion 56 is allowed to rotate about the variable portion 58 as a fulcrum with respect to the second linking portion 60 fixed to the guide roller unit 36, As the posture of the arm base 42 is changed, the first linkage portion 56 is changed in posture. In this way, both arms 44, 44 supported by the arm base 42 move in synchronization with the guide roller unit 36 in the left-right direction by the linking means 52, but the arm base 42 (both arms 44, 44) moves Independently of the roller unit 36, the posture can be changed between a rising posture and a descending posture.

(Operation effect of unwinding part)
The unwinding portion 18 described above is not moved in the left-right direction together with the arm base 42 that supports both arms 44, 44, but is supported by both arms 44, 44 and both arms 44, 44 with respect to the arm base 42. Only the original roll 14 is configured to move in the left-right direction. Accordingly, even if both arms 44, 44 are moved together with the guide roller unit 36, the load on the guide actuator 50 can be suppressed. In addition, the arm base 42 is displaced independently of the guide roller unit 36, and the arms 44, 44 are raised or lowered. Can be reduced. Therefore, it is possible to avoid the enlargement of the actuators 46 and 50 that move the arm base 42, the arms 44 and 44, and the guide roller unit 36, and to make the unwinding unit 18 compact as a whole. For example, when the elevating actuator 46 and the guide roller unit 36 that bring the arm 44 to the up and down positions are installed on the arm base 42, the arm base 42 becomes large, but the guide roller unit 36, the elevating actuator 46, and the guide actuator 50 are the main bodies. Since the arm base 42 is installed in the frame 11, the arm base 42 can be downsized, and the front-rear dimension of the unwinding portion 18 can be suppressed.

Since the unwinding portion 18 reduces the load on the guide actuator 50, it is possible to improve the responsiveness of the operation with respect to each of the arms 44, 44 and the guide roller unit 36 that accompany the driving of the guide actuator 50. .. As a result, the lateral movement of the arms 44, 44 and the lateral movement of the guide roller unit 36 are prevented from deviating from each other, and the meandering of the web 12 unwound from the original roll 14 can be appropriately corrected.

The unwinding section 18 is configured to transmit the drive of the guide actuator 50 to both the arms 44, 44 and the guide roller unit 36 by the linking means 52, but to the second linking section 60 on the guide roller unit 36 side, The variable portion 58 allows the first linking portion 56 on the arm 44 side to undergo posture displacement together with the arm base 42. In this way, the linking means 52 does not hinder the attitude displacement of the arm base 42. Since the variable portion 58 of the linking means 52 and the base rotation shaft 43 of the arm base 42 are coaxially arranged, the posture of the arm base 42 can be smoothly displaced. Further, since the linkage means 52 is moved by one guide actuator 50, the arms 44, 44 and the guide roller unit 36 are moved in the left-right direction, so that the number of parts can be reduced. Moreover, since the arms 44, 44 and the guide roller unit 36 are connected by the linking means 52, the synchronism is high, and the meandering of the web 12 unwound from the original roll 14 can be appropriately corrected.

Even when the arm base 42 is tilted forward such that both arms 44, 44 are in a lowered posture in which the original roll 14 is attached and detached, the unwinding portion 18 does not tilt forward but follows the main body frame 11. And is kept in a standing posture. Accordingly, the guide roller unit 36 does not interfere with the attachment/detachment of the original fabric roll 14, and the workability and safety of setting the original fabric roll 14 can be improved.

(Arm positioning structure)
Next, with reference mainly to FIGS. 6 to 8, each pair of arms 44, 44 is kept close to or away from each other in a contact/separation direction (position adjustment direction: left-right direction in the embodiment). A positioning structure for positioning the arm 44 will be described. Each of the left and right arms 44, 44 is provided with a positioning structure, but since the configuration is the same, only the positioning structure of the right arm 44 will be described.

(Arming structure-Outline)
As shown in FIGS. 6 to 8, the positioning structure of the arm 44 is provided so as to extend in the left-right direction along the front surface of the arm base 42, and has a plurality of receiving portions 57 a arranged in the left-right direction. It has a stop portion 57 and an arm fixing portion 62 which is provided on the arm 44 and can be engaged with and disengaged from the receiving portion 57 a of the arm locking portion 57. The arm fixing portion 62 is separated from the receiving portion 57a in a fixing position where the arm fixing portion 62 is caught by the receiving portion 57a so that the movement in the left-right direction with respect to the arm locking portion 57 is restricted (see FIG. 8A), and the arm fixing portion 62 moves in the left-right direction of the arm 44. Is movable in the front-rear direction (the protruding direction of the arm 44) between the release position (see FIG. 8B) that allows the movement of the arm. Further, the arm fixing portion 62 is elastically biased toward the arm base 42 side by an elastic member 64 such as a coil spring (embodiment) so as to be in a fixed position.

(Arm positioning structure-arm locking part)
As shown in FIGS. 5 to 7, the arm locking portion 57 is a rack in which the receiving portion 57a is configured by a tooth groove between a plurality of teeth 57b arranged in the left-right direction. The arm locking portion 57 is provided so as to pass between the arm base 42 and the arm pedestal 44 a of the arm 44 which is supported by the arm slider 48 at a distance from the arm base 42. Further, the arm locking portion 57 is arranged so that the teeth 57b are inserted into a pedestal recess 44b that is recessed from the surface of the arm pedestal 44a facing the arm base 42, and the bottom of the receiving portion 57a (bottom of the tooth groove) is located. It is located between the arm base 42 and the arm pedestal 44a. The left and right arm locking parts 57, 57 corresponding to the left and right arms 44, 44 are connected by the front support part 56 a, and the left and right arm locking parts 57, 57 are attached to the arm base 42 by the guide actuator 50. It can be moved integrally in the left and right directions. Therefore, the left and right arms 44, 44 fixed by the positioning structure move integrally in the left-right direction with respect to the arm base 42 while maintaining a distance between them in the left-right direction.

(Arming structure-Arm fixing part)
As shown in FIGS. 6 and 8, the arm fixing portion 62 is a rod-shaped member that is arranged so as to pass through the hollow portion of the cylindrical arm 44 in the front-rear direction. The arm fixing portion 62 is movable forward or backward along the protruding direction (front-rear direction) of the arm 44 protruding forward from the arm base 42. The arm fixing portion 62 passes through a pedestal through hole 45 formed in the arm pedestal 44a of the arm 44 so as to pass through the bottom of the pedestal recess 44b in the front-rear direction, and the base of the arm fixing portion 62 on the arm base 42 side. The end portion projects rearward, and the root end portion projects rearward from the release position (FIG. 8B) at the fixed position (FIG. 8A). Further, the arm fixing portion 62 is provided so as to be exposed to the outside of the arm 44 from the protruding end side of the arm 44, and can be operated so as to move the arm fixing portion 62 from the fixed position to the release position. It has an operation unit 63. The operation portion 63 of the embodiment projects forward from the protruding end surface (front end surface) of the arm 44, and by pulling the operation portion 63 forward, the arm fixing portion 62 is moved from the fixed position to the release position.

As shown in FIGS. 7 and 8, the arm fixing portion 62 is provided at the base end portion of the arm fixing portion 62, and the fitting piece 62a fitted to the receiving portion 57a and the base end portion of the arm fixing portion 62 are provided. The posture holding pieces 62b and 62c that are provided on the portion and project toward the arm base 42 side (rearward) with respect to the fitting piece 62a. The fitting piece 62a is a columnar member whose axis extends in the up-down direction (direction orthogonal to the position adjustment direction). For example, if a spring pin is used as the fitting piece 62a, it will be difficult to drop from the arm fixing portion 62. Therefore, it is preferable. At the fixing position of the arm fixing portion 62, the fitting piece 62a fits into the receiving portion 57a, and at the releasing position of the arm fixing portion 62, the fitting piece 62a slips out forward from the receiving portion 57a. The posture holding pieces 62b and 62c are arranged so as to overlap the upper surface or the lower surface of the arm locking portion 57 at the fixing position of the arm fixing portion 62, and in the embodiment, the arm holding portion 57 is sandwiched from above and below. A pair of posture holding pieces 62b and 62c are provided. The lower (one) first posture holding piece 62b of the pair of posture holding pieces 62b, 62c extends beyond the bottom of the receiving portion (tooth groove) 57a even when the arm fixing portion 62 is in the release position. It is formed so as to overlap the locking portion 57. The second (upper) second posture holding piece 62c of the pair of posture holding pieces 62b, 62c is located closer to the tip side of the tooth 57b than the bottom of the receiving portion (tooth groove) 57a at the release position of the arm fixing portion 62. Although it is arranged, it partially overlaps with the tooth 57b. A reference numeral 65 shown in FIG. 8 is a positioning piece that is hooked on the arm 44 and defines the front-back movement range of the arm fixing portion 62.

(Effects of arm positioning structure)
As described above, the arm 44 can be moved in the left-right direction by a simple operation of operating the operation portion 63 and moving the arm fixing portion 62 from the fixed position to the release position against the bias of the elastic member 64. Therefore, the position of the arm 44 and the interval between the left and right arms 44 can be adjusted. When the position of the arm 44 is adjusted, the arm 44 can be moved by holding the operated operation unit 63 and moving it in the left-right direction, and the position adjustment work is easy. Further, since the arm fixing portion 62 is biased by the elastic member 64 so as to be in the fixed position, the arm fixing portion 62 naturally returns to the fixed position and the arm 44 is positioned only by releasing the operation portion 63. It Since the arm fixing portion 62 is applied with a force by the elastic member 64, the arm 44 can be held in a state of being positioned with respect to the arm locking portion 57. Moreover, since the operation portion 63 is provided on the protruding end side of the arm 44, it is easy to perform an operation regarding the position adjustment of the arm 44. For example, if a pin that engages with the arm locking portion 57 is provided on the arm pedestal 44a, it is difficult for the arm 44 to manually operate the pin because it interferes with the arm 44. Therefore, the pin is driven by a cylinder or the like, and the positioning structure is complicated. Become. According to the positioning structure of the arm 44 according to the embodiment, the arm fixing portion 62 that is hooked on the arm locking portion 57 and the elastic member 64 that biases the arm fixing portion 62 can be easily formed without using a driving unit such as an actuator. The positioning structure of the position-adjustable arm 44 can be configured with a small number of parts. The cost can be reduced by using a general-purpose rack as the arm locking portion 57.

The arm fixing portion 62 is a round bar-shaped member, but the posture holding pieces 62b and 62c provided on the arm fixing portion 62 are caught by the arm locking portion 57 at the fixing position, so that the arm fixing portion 62 does not rotate. The posture can be maintained. Further, since the arm fixing portion 62 is kept in an appropriate posture, it is possible to avoid a fitting failure between the fitting piece 62a and the receiving portion 57a, and the fitting piece 62a is more surely fitted to the receiving portion 57a. be able to. Further, even when the arm fixing portion 62 is moved to the release position, the first posture holding piece 62b remains overlapped with the arm locking portion 57, so that the posture is maintained so that the arm fixing portion 62 does not rotate even in the release position. be able to. Moreover, the relationship between the first posture holding piece 62b overlapping the arm locking portion 57 and the arm locking portion 57 even at the release position also functions as a guide when moving the arm 44 in the left-right direction.

A gap is formed between the arm pedestal 44a of the arm 44 and the arm base 42 by an arm slider 48 that supports the arm 44 so as to be movable in the left-right direction. By arranging the arm locking portion 57 using this gap, the space is effectively used. By disposing the tooth 57b of the arm locking portion 57 so as to be inserted into the pedestal recess 44b of the arm pedestal 44a of the arm 44, the arm pedestal 44a and the arm base 42 can be brought close to each other. As a result, it is possible to prevent the arm 44 from largely projecting forward due to the arm locking portion 57 being installed between the arm 44 and the arm base 42, and to make the front-rear dimension of the unwinding portion 18 compact. it can.

(Cutting mechanism)
Next, a cutting mechanism for cutting the web 12 in the flow direction along the pass line will be described with reference to FIGS. 9 to 12. In the embodiment, the web 12 is cut by the four cutters 20 arranged apart from each other in the left-right direction so as to form the five processed rolls 16.

(Cutting mechanism-Outline)
As shown in FIG. 9, the cutting mechanism includes a shaft (bar-shaped member) 66 arranged to extend in the left-right direction (the width direction of the web 12 orthogonal to the flow direction of the web 12) and the web 12 in the flow direction. And a cutter holder 68 having a cutter 20 for cutting into. The cutter holder 68 is detachably attached to the shaft 66. Further, the cutter holder 68 can be changed between a fixed state in which the cutter holder 68 is fixed to the shaft 66 so as not to move in the left-right direction and an adjustment state in which the position can be changed in the left-right direction along the shaft 66, and cuts the web 12. The width can be changed. A plurality of cutter holders 68 are installed on the shaft 66 so as to be separated from each other in the left-right direction. Then, the shaft 66 is rotated around the axis in the left-right direction by an operation of an operation mechanism (not shown) to collectively change the postures of the plurality of cutter holders 68, and the cutting position where the cutter 20 intersects the web 12 and the cutting position. The cutter 20 can be switched to a retracted position in which the cutter 20 is retracted upward so as not to overlap the web 12 from the cut position.

(Cutting mechanism-Cutter holder)
As shown in FIGS. 9 to 12, the cutter holder 68 is attached to a shaft 66 having a round bar shape, and the first block 70 and the first block 70 are installed so that the position of the cutter holder 68 can be changed in the left-right direction along the shaft 66. To the fixed state or the adjusted state. Further, the cutter holder 68 includes a second block 74 which is provided in the first block 70 and whose position can be changed in the left-right direction with respect to the first block 70 by the second position adjusting means 76. The cutter 20 is provided in the second block 74. Further, the cutter holder 68 is provided on the cutter 20, and is provided with a pointing portion 78 that indicates the position of the cutter 20 in the left-right direction by pointing the scale of the gauge 67 provided in the left-right direction of the shaft 66.

(Cutting mechanism-Shaft)
The shaft 66 is installed between the left and right body frames 11, 11 and, as shown in FIGS. 10 and 11, the shaft 66 is provided with a positioning recess 66 a so as to be recessed from the peripheral surface of the shaft 66. .. A gauge 67 is provided in the positioning recess 66a. The positioning recess 66 a is formed by cutting out the peripheral surface of the shaft 66 in a V-shape that opens larger than the circumferential dimension of the pointer 78.

(Cutting mechanism-Cutter holder-First block)
As shown in FIGS. 9 to 11, in the first block 70, a mounting recess having an opening portion into which the round rod-shaped shaft 66 can be inserted and removed and a bottom portion formed in an arc shape in accordance with the peripheral surface of the shaft 66. 80 is provided. The first block 70 accommodates the shaft 66 in the mounting recess 80, and the first position adjusting means 72 provided on the upper side portion forming the mounting recess 80, and the lower portion forming the mounting recess 80. It is attached to the shaft 66 with the shaft 66 sandwiched between the sides.

(Cutting mechanism-Cutter holder-First position adjusting means)
As shown in FIGS. 11 and 12, the first position adjusting means 72 is provided with a holder fixing portion 82 configured by a chain link and a holder operating portion 84 that controls the holder fixing portion 82. The holder fixing portion 82 is bridged between a pair of link plates 82a, 82a arranged to face each other in the left-right direction, and a pair of link plates 82a, 82a, respectively, and a pair of link plates 82a provided apart from each other in the longitudinal direction of the link plate 82a. The shafts 82b and 82c are provided, and the links constituting a general chain are diverted. The holder fixing portion 82 sandwiches the upper side portion forming the mounting recess 80 in the first block 70 from the left and right with the pair of link plates 82a, 82a, and the first shaft portion (one shaft portion) 82b of the side portion. Through the first shaft portion 82b so that the first shaft portion 82b can be rotated about the axis in the left-right direction. In the holder fixing part 82, the second shaft part (the other shaft part) 82c is arranged on the opening side of the mounting recess 80, and the second shaft part 82c is arranged with respect to the peripheral surface of the shaft 66 housed in the mounting recess 80. Rotate so that they come into contact with and separate from each other. The second shaft portion 82c is provided with a roller-shaped pressing piece 82d, and the pressing piece 82d comes into contact with the peripheral surface of the shaft 66.

As shown in FIG. 10A, the holder operating portion 84 is a handle screwed into the upper side portion of the first block 70 forming the mounting recess 80, and the holder operating portion 84 can be rotated to one side. And pushes the pressing piece 82d downward toward the peripheral surface of the shaft 66. As shown in FIG. 10( b ), the holder operating portion 84 rotates to the other side and ascends to allow the pressing piece 82 d to move upward so as to separate from the peripheral surface of the shaft 66. The first position adjusting means 72 holds the pressing piece 82d by the holder operating part 84 to prevent the first block 70 from coming off from the shaft 66 housed in the mounting recess 80, and the peripheral surface of the shaft 66 on the pressing piece 82d. It can be changed to an adjustment state that allows movement in the direction away from. In the adjusted state, the pressing of the pressing piece 82d against the peripheral surface of the shaft 66 is released, so that the first block 70 (cutter holder 68) is allowed to move in the left-right direction along the shaft 66. Then, by loosening the holder operating portion 84 beyond the adjusted state, the pressing piece 82d can be retracted from the opening of the mounting recess 80, and the first block 70 (cutter holder 68) can be attached to and detached from the shaft 66.

(Cutting mechanism-Cutter holder-Second block, Second position adjusting means)
As shown in FIG. 12, the second block 74 is attached to the first block 70 so as to be movable in the left-right direction by two guide shafts 75, 75 that are passed through the first block 70 in the left-right direction. There is. The cutter 20 is attached to the second block 74 along a surface of the second block 74 opposite to the first block 70. The second position adjusting means 76 has a feed screw structure in which the second block 74 moves in the left-right direction when the knob 76a is turned. A coil spring 86 is arranged between the first block 70 and the second block 74 so as to surround the feed screw of the second position adjusting means 76, and the coil spring 86 causes the second block 74 to move from the first block 70. It is elastically biased away.

(Cutting mechanism-Cutter holder-Pointing part)
As shown in FIGS. 9 and 12, the pointing portion 78 is a projecting piece formed so as to project from the end portion of the cutter 20 facing the shaft 66 toward the shaft 66, and is provided in the positioning recess 66 a of the shaft 66. It is arranged to be plugged in. The pointing portion 78 is arranged on an extension line of the cutting edge of the cutter 20, and the position of the pointing portion 78 is the same as the position of the cutting edge of the cutter 20. The second block 74 is formed with an insertion protrusion 74a so as to protrude from the end of the second block 74 facing the shaft 66 toward the shaft 66, and includes a pointing portion 78 and an insertion protrusion 74a. Are overlapping. The pointing portion 78 points the scale of the gauge 67 attached to the left and right direction of the shaft 66, and the position of the blade of the cutter 20 in the left and right direction can be known by this.

As shown in FIG. 10, in the mounting recess 80 of the first block 70, a hooking portion 71 is provided at a position corresponding to the pointing portion 78 and the insertion projection 74a that is inserted into the positioning recess 66a like the pointing portion 78. It is provided. For example, a pin is used as the hooking portion 71, and the hooking portion 71 is disposed at a position that overlaps the pointing portion 78 and the insertion protrusion 74a in the left-right direction, and the dimension of the shaft 66 in the circumferential direction is larger than that of the pointing portion 78 and the insertion protrusion 74a. Is set to a large value. As shown in FIG. 11, when the hook portion 71 is inserted into the positioning recess 66a and the cutter holder 68 is rotated in the circumferential direction with respect to the shaft 66, the hook 71 is caught on the wall surface of the positioning recess 66a. The cutter holder 68 is regulated from rotating in the circumferential direction with respect to the shaft 66 by being caught by the hooking portion 71 and the wall surface of the positioning recess 66a, and can be positioned in the circumferential direction. The cutter holder 68 has a cutting position where the cutter 20 intersects the web 12 (see FIG. 11A) and a retracting position where the cutter 20 is retracted so as not to overlap the web 12 from the cutting position (see FIG. 11B. )), the positioning recess 66a is formed so as to allow the hooking portion 71 to move in the circumferential direction with respect to the shaft 66. As described above, the cutting mechanism not only collectively switches the plurality of cutter holders 68 attached to the shaft 66 between the cutting position and the retracted position by rotating the shaft 66, but also the individual cutter holders. 68 can be switched between the cut position and the retracted position independently of each other.

(Effect of cutting mechanism)
The cutting mechanism moves the first block 70 along the shaft 66 to roughly adjust the position, and then fixes the first block 70 to the shaft 66 by the first position adjusting means 72. Next, the position of the cutter 20 can be adjusted by operating the second position adjusting means 76 to move the second block 74 in the left-right direction with respect to the first block 70. As described above, the cutter 20 can be adjusted stepwise by adjusting the position of the first block 70 with respect to the shaft 66 and adjusting the position of the second block 74 having the cutter 20 with respect to the first block 70. By doing so, it is possible to facilitate fine adjustment of the position of the cutter 20. Moreover, since the pointing portion 78 provided on the cutter 20 points to the gauge 67 provided on the shaft 66, the position of the cutter 20 can be intuitively adjusted even if the position can be adjusted stepwise as described above. It is easy to determine and the position of the cutter 20 can be easily adjusted. The cost can be reduced by using a chain link as the first position adjusting means 72.

The cutter holder 68 can restrict rotation of the cutter holder 68 in the circumferential direction with respect to the shaft 66 by being caught by the hooking portion 71 and the wall surface of the positioning recess 66 a in the shaft 66, and the cutter in the direction intersecting the web 12. The position adjustment of 20 is easy. Moreover, the cutter holder 68 can position the cutter 20 at the cutting position where the cutter 20 intersects the web 12 by applying the hooking portion 71 to one wall surface of the positioning recess 66 a. Further, the cutter holder 68 can be positioned at the retracted position where the cutter 20 retracts from the web 12 by applying the hooking portion 71 to the other wall surface of the positioning recess 66a. In this way, the cut position and the retracted position can be easily set by the hooking portion 71 and the wall surface of the positioning recess 66a being caught.

(Adjusting roller unit)
Next, referring mainly to FIGS. 13 to 15, when the web 12 is wound in the winding unit 22, the adjusting rollers 28 and 30 that adjust the processed roll 16 by limiting the amount of air taken in are provided. The adjusting roller unit 32 will be described.

(Adjusting roller unit-outline)
As shown in FIG. 13, the adjusting roller unit 32 is provided in the winding unit (winding device) 22 that winds the web 12 around the winding shaft 24 to form the processed roll 16. The adjusting roller unit 32 includes a first adjusting roller 28 and a second adjusting roller 30 which are displaced with respect to the winding shaft 24 in accordance with a change in the thickness of the processed roll 16 in the unit frame 88. 28 and 30 control the amount of air taken in when the web 12 is wound. The winding section 22 is provided with two winding shafts 24 vertically separated from each other, and an adjusting roller unit 32 is installed corresponding to each of the upper and lower winding shafts 24, 24. Here, since the upper and lower adjusting roller units 32, 32 have the same configuration except that the number of second adjusting rollers 30 installed is different, only one side will be described.

(Adjusting roller unit-Unit frame)
As shown in FIG. 1, the unit frame 88 that supports the adjusting rollers 28 and 30 is arranged closer to the unwinding portion 18 that unwinds the web 12 than the winding shaft 24. The unit frame 88 is linearly movable with respect to the main body frame 11 from the position close to the winding shaft 24 toward the front toward the unwinding portion 18 (see FIG. 15 ). Specifically, as shown in FIG. 13, the unit frame 88 is configured by connecting a pair of unit plates 88a, 88a, which are opposed to each other on the left and right, by a unit stay 88b extending in the left-right direction. The unit frame 88 is supported from the left and right sides by linear motion guides 90 respectively provided on the outside of the unit plate 88a, and is configured to be linearly movable in the front-rear direction with respect to the main body frame 11. The unit frame 88 moves in the front-rear direction by the operation of the unit actuator 92 provided between the unit frame 88 and the main body frame 11. As shown in FIG. 14, the unit frame 88 has a swing shaft 96 in which unit racks 94 provided outside the unit plate 88a are supported so as to extend in the left-right direction between the left and right body frames 11, 11. And a pair of pinions 98, 98 that are spaced apart from each other in the left-right direction. As a result, in the unit frame 88, the left and right unit plates 88a, 88a move in synchronization.

As shown in FIG. 15A, the unit frame 88 is a main body that constitutes a pass line that guides the web 12 toward the first adjusting roller 28 between the unwinding portion 18 and the winding portion 22 of the slitter 10. It is arranged in the space below the roller R. Then, as shown in FIG. 15B, the unit frame 88 is displaced so as to enter the inside of the slitter 10 by the forward movement toward the unwinding portion 18, and the first adjusting roller 28 and the second adjusting roller 30 are moved. , So as to be located below the main body roller R.

(Adjusting roller unit-first adjusting roller)
As shown in FIGS. 13 and 14, the first adjusting roller 28 has left and right ends rotatably supported by the left and right unit plates 88a, 88a of the unit frame 88, respectively, and is rotatable about an axis extending in the left-right direction. Is configured. The first adjusting roller 28 is formed wide in the left-right direction so as to be able to deal with all of the processed rolls 16 that are wound up at a plurality of positions separated from each other in the left-right direction on the winding shaft 24. The first adjusting roller 28 is a so-called touch roller arranged so as to be pressed against the peripheral surface of the processed roll 16 formed by winding the web 12 around the winding shaft 24 when winding the web 12. .. The first adjusting roller 28 moves forward in response to a change in the thickness of the processed roll 16 due to the winding of the web 12 as the unit frame 88 linearly moves in the front-rear direction by the unit actuator 92 whose operation is controlled. The processed roll 16 is pressed with a predetermined pressing force while being linearly displaced (see FIG. 15(a)). The first adjusting roller 28 linearly moves to the opposite side of the front surface of the winding section 22 as the unit frame 88 moves forward, and moves away from the processed roll 16 supported by the winding shaft 24. It can be evacuated (see Fig. 15(b)). The first adjusting roller 28 is arranged so that its central axis is at the same height as the central axis of the winding shaft 24.

(Adjusting roller unit-second adjusting roller)
As shown in FIG. 13, the adjusting roller unit 32 is provided with a second adjusting roller 30 corresponding to each of the processed rolls 16 wound at a plurality of positions separated from each other in the left-right direction on the winding shaft 24. Has been. In the upper adjusting roller unit 32, three second adjusting rollers 30 are arranged side by side in the left-right direction corresponding to the processed rolls 16 wound in three places, and in the lower adjusting roller unit 32, two second adjusting rollers 30 are installed. Two second adjusting rollers 30 are arranged side by side in the left-right direction so as to correspond to the processed rolls 16 wound up at the points. The second adjusting roller 30 is a so-called touch roller arranged so as to be pressed against the peripheral surface of the processed roll 16 formed by winding the web 12 around the winding shaft 24 when winding the web 12. Is. The second adjusting roller 30 is arranged above the winding shaft 24 and comes into contact with the peripheral surface extending from the upper end to the front end of the processed roll 16.

As shown in FIGS. 13 and 14, each of the second adjusting rollers 30 is attached to the other end of the roller arm 102 whose one end is fixed to the arm shaft 100 spanning the left and right unit plates 88a, 88a of the unit frame 88. It is provided. The roller arm 102 is swingably displaceable at the other end with the arm shaft 100 having one end fixed as a fulcrum. The second adjusting roller 30 is rotatably supported about an axis extending in the left-right direction with respect to the roller arm 102, and is narrower than the first adjusting roller 28 in accordance with the left-right width of one processed roll 16. Is formed in. The arm shaft 100 is rotated by an arm actuator 104 installed on one of the unit plates 88a, whereby the second adjusting roller 30 is pivotally displaced about one end of the roller arm 102. As described above, the second adjusting roller 30 takes up the roller arm 102 by the operation-controlled arm actuator 104, so that the second adjusting roller 30 takes up the web 12 in accordance with the change in the thickness of the processed roll 16 as the web 12 is taken up. The processed roll 16 is pressed with a predetermined pressing force while being oscillated and displaced toward or away from the shaft 24 (see FIG. 15A). The second adjusting roller 30 is linearly displaced with respect to the winding shaft 24 as the unit frame 88 is linearly moved in the front-rear direction by the unit actuator 92 whose operation is controlled. In this way, the second adjusting roller 30 is displaced in a complex manner.

As shown in FIG. 15B, the second adjusting roller 30 can be retracted so as not to contact the peripheral surface of the processed roll 16 by rotating upward so as to be separated from the processed roll 16. Is. In addition, the second adjusting roller 30 linearly moves to the side opposite to the front surface of the winding section 22 as the unit frame 88 moves forward, and separates from the processed roll 16 supported by the winding shaft 24. It is possible to retract to the position. In this way, the adjusting roller unit 32 can retract the second adjusting roller 30 from the processed roll 16 while keeping the first adjusting roller 28 in contact with the processed roll 16. Further, the adjusting roller unit 32 can retract both the first adjusting roller 28 and the second adjusting roller 30 from the processed roll 16 by retracting the unit frame 88 forward.

(Adjusting roller unit-effect)
In the adjusting roller unit 32 described above, the unit frame 88 is provided on the unwinding portion 18 side that is opposite to the front side of the winding portion 22 with respect to the winding shaft 24, and the unit frame 88 moves to the unwinding portion 18 side. Since it is configured to move, the unit frame 88 does not interfere when accessing from the front side of the winding unit 22. Further, since the first adjusting roller 28 and the second adjusting roller 30 are provided on the unit frame 88 and move together as the unit frame 88 moves toward the unwinding portion 18, from the front side of the winding portion 22. The first adjusting roller 28 and the second adjusting roller 30 do not obstruct the access. Therefore, the adjusting roller unit 32 does not interfere with the work performed from the front side of the winding portion 22, such as when the winding core 13 is attached to the winding shaft 24 or when the processed roll 16 is removed from the winding shaft 24.

In the adjusting roller unit 32, both the first adjusting roller 28 and the second adjusting roller 30 move to the opposite side to the front side of the winding section 22 as the unit frame 88 moves to the unwinding section 18 side, Since it is retracted to a position away from the processed roll 16 supported by the winding shaft 24, there is no obstacle when accessing from the front side of the winding portion 22. Further, since the adjusting roller unit 32 has the unit frame 88 arranged below the cutting mechanism for cutting the web 12 in the pass line for guiding the web 12 constituted by the main body roller R, the adjusting roller unit 32 is wound up. It is unobtrusive when accessing the cutting mechanism from the front side of section 22.

Since the main first adjusting roller 28 is configured to move linearly, compared with the so-called pivot type touch roller which is attached to the tip of the swing arm and is displaced so as to swing, the processed roll 16 The change in the pressing force against can be reduced. Therefore, the amount of air can be limited by pressing the processed roll 16 with an appropriate force by the first adjusting roller 28, so that the processed roll 16 in which the web 12 is neatly wound can be obtained.

The adjustment roller unit 32 is configured such that the left and right unit plates 88a, 88a are connected by a unit stay 88b, and the rack and pinion mechanism provided on each of the left and right of the unit frame 88 allows the adjustment roller unit 32 to move right and left without displacement. There is. Therefore, each of the processed rolls 16 formed by winding the web 12 at a plurality of positions separated from each other in the left-right direction can be pressed by the adjusting rollers 28 and 30 with uniform force.

The slitter 10 effectively uses the space in the vertical direction so that the main body roller R is arranged in the upper part of the device and the space below it is used to install the adjusting roller unit 32 that moves back and forth. The front and rear dimensions of can be made compact.

(Example of change)
The present invention is not limited to the above-mentioned configuration, but may be modified as follows, for example.

(1) In the case of a rewinder, for example, the unwinding unit of the embodiment has a unwinding unit that unwinds a web from a supported original roll and a winding unit that winds the web to form a treated roll. It can be applied to both or either.

(2) The arm positioning structure of the embodiment may be applied, for example, as a structure for positioning and fixing the arm that supports the winding shaft in the winding unit.
(3) In the embodiment, the positioning structure is provided on both the left and right arms, but the positioning structure may be provided on only one of the arms.

(4) In the embodiment, the cutter holder can be positioned in the circumferential direction by catching the hooking portion and the wall surface of the positioning recess of the shaft. However, the present invention is not limited to this, and the pointing portion and/or the inserting projection portion are not limited thereto. The cutter holder may be positioned in the circumferential direction by being caught by the wall surface of the positioning recess of the shaft.

(5) The number of second adjusting rollers to be installed is not limited to the above-described embodiment, but may be changed as appropriate, and may be one, for example.
(6) In the embodiment, the touch roller arranged so that the adjusting roller comes into contact with the roll has been illustrated, but the present invention is not limited to this, and the adjustment roller is arranged with a gap so that the gap between the roll and the roll has a required width. It may be a so-called near roller controlled by the above.

(7) As the actuator of the embodiment, various actuators such as a fluid pressure cylinder such as a hydraulic cylinder, a pneumatic cylinder, and a hydraulic cylinder, or an electric cylinder, or an electric actuator such as a solenoid, an electric motor, or a servomotor can be used. In the embodiment, a direct acting cylinder is used.

10 slitter (web processing machine), 12 web, 16 processed roll (roll),
18 unwinding part, 22 winding part (winding device), 24 winding shaft,
28 first adjusting roller (adjusting roller), 30 second adjusting roller (adjusting roller),
32 adjusting roller unit (roller unit), 88 unit frame,
102 roller arm, R body roller

Claims (3)

A roller unit that is provided in a winding device that forms a roll by winding a web on a winding shaft in a web processing machine and that has an adjusting roller that is displaced with respect to the winding shaft according to a change in the thickness of the roll. hand,
A unit frame for supporting the adjusting roller in the roller unit is arranged closer to the unwinding portion side for unwinding the web than the winding shaft,
The unit frame is provided so as to be linearly movable from a position close to the winding shaft toward the unwinding portion side,
As the adjusting roller,
A first adjusting roller which is provided on the unit frame, and which is linearly displaced with respect to the winding shaft with linear movement of the unit frame;
A second adjusting roller provided at the other end of a roller arm whose one end is rotatably supported around the axis orthogonal to the flow direction of the web with respect to the unit frame. Roller unit. The first adjusting roller and the second adjusting roller move to the side opposite to the front surface of the winding device as the unit frame moves to the unwinding portion side, and are supported by the winding shaft. The roller unit according to claim 1, which is retracted to a position away from the roll. 3. The roller unit according to claim 1, wherein the unit frame is arranged below a cutting mechanism that cuts the web in a pass line that guides the web formed by a main body roller.