JP2019043729A - Winding core mechanism - Google Patents

Abstract

To provide a winding core mechanism that is easy to detach a winding roll, not required to sort a winding core and low in operation cost.SOLUTION: A winding core mechanism 1 constitutes a rotation axis of a winding roll 3 in a surface-drive type slit piece winding device 2 that presses a rotary drive shaft 5 against an outer peripheral surface of the winding roll 3, rolls up a winding object 7 and forms the winding roll 3. The winding core mechanism 1 comprises a plurality of or three core members 10, 11, 12 that contact an inner peripheral surface of an inner peripheral part of the winding roll 3 in order to roll up the winding object 7 and form the winding roll 3, a core-member moving part 20 that moves the three core members 10, 11, 12 from inner toward outer so that the three core members 10, 11, 12 can be pressed against the inner peripheral surface of the winding roll 3 under a prescribed pressure and moves the three core members 10, 11, 12 from outer toward inner so that the three core members 10, 11, 12 can be separated from the inner peripheral surface of the winding roll 3, and an operation part 30 that makes the core-member moving part 20 operable by a user's operation.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a winding core mechanism of a winding device in which a winding core of a winding shaft can be easily attached and detached in a surface-driven winding type slit piece winding device.

  The surface drive type slit piece winding device rotates when winding both ends of a base material which is cut by the slits and discharged from both ends of a wide web such as paper or plastic film as a winding roll. It is an apparatus that performs winding by pressing the drive shaft against the surface of the winding roll and rotationally driving the winding roll. Conventionally, in such a surface drive type slit piece winding device, in order to wind up the winding roll, a cylindrical core which is hard to deform such as a paper tube is used (see, for example, Patent Document 1).

JP 2002-037491 A

  However, in the case of the surface drive type slit piece winding device using the cylindrical core, the winding roll is removed from the slit piece winding device in a state where the winding core is attached to the winding roll after the winding is completed. It is supposed to be. Therefore, since a core is required for each winding roll, it is necessary to prepare a core having a uniform length, and there is also a problem that it is necessary to separate the core in the recycling process. Furthermore, since a core is used for each winding roll, there is a problem that the cost for the core is required during operation (for example, see Patent Document 1).

  The present invention has been made in view of these problems, and it is an object of the present invention to provide a winding core mechanism in which removal of the winding roll is easy, separation of the winding core is unnecessary, and operation cost is low.

  The present invention has been made to solve at least a part of the above-mentioned problems, and can be realized as the following application example. In addition, the reference numerals in the parentheses in the column, the supplementary explanation, and the like indicate the correspondence with the embodiments described later in order to aid the understanding of the present invention, and the present invention is not limited at all. .

Application Example 1
The core mechanism (1) in the present invention is
The rotation driving shaft (5) having a rotation axis parallel to the rotation axis of the winding roll (3) on the outer periphery of the winding roll (3) is pressed against the surface of the winding roll (3) A winding core mechanism (1) constituting a rotational shaft of the winding roll (3) in a surface-driven slit piece winding device (2) for winding the winding roll (3) by forming the winding roll (3) ,
A plurality of core members (10, 11, 12) contacting the inner peripheral surface of the winding roll (3) to wind the winding target (7) to form the winding roll (3) When,
The plurality of core members (10, 11, 12) are moved outward from the inner side, and the plurality of core members (10, 11, 12) are applied to the inner circumferential surface of the winding roll (3) at a predetermined pressure. Of the plurality of core members (10, 11, 12) from the outside toward the inside, and the plurality of core members (10, 11, 12) of the winding roll (3) A core member moving portion (20) which can be separated from the inner circumferential surface;
An operation unit (30) for operating the core member moving unit (20) by the operation of the user;
The point is that it is equipped with

  In such a core mechanism (1), when the user operates the operation unit (30), the plurality of core members (10, 11, 12) in contact with the inside of the winding roll (3) are wound. It is pressed with a predetermined pressure from the inside to the inside of the take-up roll (3). Therefore, since the plurality of core members (10, 11, 12) form the core of the winding roll (3) by the operation of the user, the object to be wound (7) can be wound.

  In addition, the user operates the operation unit (30) to move the plurality of core members (10, 11, 12) from the outside toward the inside, and the plurality of core members (10, 11, 12) are wound. It can be separated from the inner peripheral surface of the take-off roll (3). Therefore, the winding roll (3) in which the winding of the winding object (7) is completed can be easily removed from the core members (10, 11, 12).

  That is, since the take-up roll (3) can be easily removed and there is no need to use a core such as a paper tube, it is not necessary to separate the core and the operation cost is low cost. be able to.

Application Example 2
In the winding core mechanism (1) described in the application example 1,
The core members (10, 11, 12) are
It consists of three members (10, 11, 12) whose length in the central axis direction is the same as that of the winding roll (3) and whose radius of curvature in the circumferential direction is the same,
The core member moving unit (20) is
An operating shaft (22) having the same rotation axis as the rotation shaft of the core member (10, 11, 12), provided with a spiral groove on the outer peripheral surface, and rotated by the operation unit (30);
A fitting portion (23) which fits in the spiral groove of the working shaft (22) and moves in the direction of the rotation shaft of the working shaft (22) with the rotation of the working shaft (22);
A connecting portion (25) for connecting the fitting portion (23) and the three members (10, 11, 12) of the core members (10, 11, 12), respectively;
The point is that it is equipped with

  In such a core mechanism (1), the operating shaft (22) is rotated by operating the operation unit (30). Further, the fitting portion (23) is fitted into the spiral groove of the recovery of the actuating shaft (22), and moves in the direction of the rotation shaft of the actuating shaft (22) as the actuating shaft rotates.

Here, three members (10, 11, 12) forming the core members (10, 11, 12) are coupled to the fitting portion (23).
Therefore, when the operating portion (30) is rotated, the fitting portion (23) moves in the direction of the rotation axis of the actuating shaft (22), and the three pieces connected to the fitting portion (23) by the connecting portion (25) The members (10, 11, 12) move inward or outward.

That is, only by rotating the operation unit (30), the core members (10, 11, 12) are moved inward or outward to form the core of the winding roll (3), or the winding roll (3) It is possible to separate the core members (10, 11, 12) from each other and withdraw the winding roll (3) from the core members (10, 11, 12).

Application Example 3
In the winding core mechanism (1) described in Application Example 1 or Application Example 2,
The operation unit (30)
It is provided at one end of the core member moving part (20), and contacts the end face of the winding roll (3) when winding the object to be wound (7) to form the winding roll (3) The gist of the present invention is to have an end surface member (32) for forming the end surface flat.

  In such a core mechanism (1), when the core members (10, 11, 12) are removed, the end face of the winding roll (3) can be made flat.

It is a figure which shows the schematic structure of the surface drive type slit piece winding-up apparatus provided with the winding core mechanism. It is a figure which shows the schematic structure of a winding core mechanism. It is a figure which shows the internal structure of a winding core mechanism.

  Hereinafter, embodiments to which the present invention is applied will be described using the drawings. The embodiments of the present invention are not limited to the following embodiments at all, and may take various forms within the technical scope of the present invention.

(Configuration of slit piece winding device)
The configuration of the slit piece winding device 2 provided with the winding core mechanism 1 will be described based on FIG. FIG. 1 is a view showing a schematic configuration of a slit piece winding device 2 provided with a winding core mechanism 1.

  As shown in FIG. 1, the slit piece winding device 2 presses a rotation driving shaft 5 having a rotation axis parallel to the rotation axis of the winding roll 3 on the outer periphery of the winding roll 3 against the surface of the winding roll 3 This is a so-called surface drive type slit piece winding device which winds up the object to be wound 7 to form the winding roll 3. Further, in order to form a rotary shaft (winding core) of the winding roll 3, a winding core mechanism 1 and a disk-like member 33 are provided.

(Configuration of winding core mechanism)
Next, the winding core mechanism 1 will be described based on FIGS. 2 and 3. FIG. 2 is a view showing a schematic configuration of the winding core mechanism 1. Moreover, FIG. 3 is a figure which shows the internal structure of the winding core mechanism 1. As shown in FIG.
As shown in FIG. 2A, the winding core mechanism 1 includes three core members 10, 11, 12, a core member moving unit 20, and an operation unit 30.

The plurality of core members 10, 11, 12 are members that come into contact with the inner peripheral surface of the inner peripheral portion of the winding roll 3 in order to wind the winding target object 7 and form the winding roll 3, The length in the axial direction is the same as that of the winding roll 3 and the radius of curvature in the circumferential direction is the same.
In addition, the winding target object 7 means the both-ends ear part of the base material which is cut | disconnected by slit the both ends of wide webs, such as paper and a plastic film, and is discharged | emitted.

  Specifically, the length of the arc is divided into core members 10, 11, 12 by dividing a metal cylinder such as a SUS material or S45C material in the axial direction so that the lengths in the circumferential direction become the same. Are equal to less than one third of the circumference, and the radius of curvature in the circumferential direction is the same.

  The core member moving unit 20 has the following two functions (A) and (A) depending on the formation state of the winding roll 3.

(A) At the start of the formation of the winding roll 3 At the start of the formation of the winding roll 3, that is, when the winding of the winding target portion 7 is started, as shown in FIG. 2 (b) The members 10, 11 and 12 are moved from the inside toward the outside so that the core members 10, 11 and 12 can be pressed against the inner peripheral surface of the winding roll 3 with a predetermined pressure.

(A) At the time of removal of the winding roll 3 When the winding of the winding roll 3 is completed and the winding roll 3 is removed, as shown in FIG. 2 (b), a plurality of core members 10, 11, 12 Of the plurality of core members 10, 11, 12 can be separated from the inner circumferential surface of the winding roll 3.

(Configuration of core member moving unit 20)
As shown in FIG. 3, the core member moving part 20 includes an operating shaft 22, two fitting parts 23, a fitting part 24 and connecting parts 25 and 26.

  The actuating shaft 22 is a bar made of a metal such as SUS material or S45C, has the same rotation axis as the rotation axes of the three core members 10, 11 and 12, and the rotation direction is reverse on the outer peripheral surface Two spiral grooves are provided so as to intersect each other, and are parts rotated by the operation unit 30.

  The fitting portion 23 is a component that fits in one of the helical grooves of the actuating shaft 22 and moves in the direction of the rotational axis of the actuating shaft 22 as the actuating shaft 22 rotates. Further, the fitting portion 24 is a component that fits in another helical groove of the actuating shaft 22 and moves in the rotational direction of the actuating shaft 22 as the actuating shaft 22 rotates.

  The fitting portions 23 and 24 are cylindrical metal members such as SUS material and S45C, and a protrusion (not shown) fitted on a spiral groove formed on the outer peripheral surface of the operating shaft 22 is on the inner peripheral surface. The actuating shaft 22 is inserted in such a way that its projection engages in the helical groove of the actuating shaft 22 and forms a so-called lead screw.

  As described above, since the fitting portion 23 and the fitting portion 24 are fitted in the spiral grooves provided on the actuating shaft 22 in the opposite rotational direction, when the actuating shaft 22 rotates, the actuating shafts 22 are respectively rotated. Move in the opposite direction along the rotational axis direction of.

  The connecting portion 25 connects the fitting portion 23 and the three core members 10, 11 and 12 on the inner side surface in the vicinity of one end of each of the core members 10, 11 and 12 and made of a metal rod such as SUS material or S45C. It is a member, and the connection part 26 is a member which connects the fitting part 24 and the core members 10, 11, 12 of 3 sheets in the inner surface of the other end vicinity of the core members 10, 11, 12 respectively.

  The operation unit 30 is a component that operates the core member moving unit 20 by rotating the actuating shaft 22 of the core member moving unit 20 by the operation of the user, and is provided at one end of the core member moving unit 20. When the object to be taken 7 is wound up to form the winding roll 3, the handle 32 also serves as an end member for contacting the end face of the winding roll 3 and forming the end face flat.

  The handle 32 is a member formed of a metal material such as SUS material or S45C in a disk shape, and the central axis portion thereof is one end of the actuating shaft 22 of the core member moving portion 20 with respect to the actuating shaft 22 by a bolt or the like. It is fixed not to rotate.

  The inner side surface of the handle 32 is wound when the winding object 7 is wound around a winding core formed by the three core members 10, 11 and 12 in the unfolded state to form the winding roll 3. Since the end face of the take-up roll 3 is in contact, the end face of the take-up roll 3 is processed to be flat and smooth so as to be flat.

  The disk-like member 33 is a member formed of a metal material such as SUS material or S45C in the shape of a disk having the same diameter as the handle 32, and is a bolt not shown and operates on the table at the lower end of the slit piece winding device 2. It is attached so that it can rotate around the rotation center axis coaxial with 22.

  Similarly to the inner side surface of the handle 32, when the winding roll 3 is formed, the end face of the winding roll 3 is in contact with the inner side face of the disc-like member 33 so that the end face of the winding roll 3 becomes flat. It is processed to be flat and smooth.

(Operation of winding core mechanism 1)
Next, the operation of the winding core mechanism 1 will be described based on FIG. FIG. 3 (a) shows a state in which the three core members 10, 11 and 12 contract inwardly, and FIG. 3 (b) shows a state in which the three core members 10, 11 and 12 expand outward. It shows.

  When the handle 32 of the operation unit 30 is rotated clockwise, the fitting unit 23 fitted in one spiral groove of the actuating shaft 22 moves downward in FIG. 3A. On the other hand, the fitting portion 24 fitted in the other spiral groove of the actuating shaft 22 moves upward in FIG. 3A.

  Then, as shown in FIG. 3B, the connecting portion 25 connected to the fitting portion 23 and the connecting portion 26 connected to the fitting portion 24 are shown in FIG. The three core members 10, 11 and 12 expand outward, and form a core for winding the object to be wound 7 to form the winding roll 3.

  From this state, when the handle 32 of the operation unit 30 is rotated counterclockwise, the upper fitting portion 24 of the fitting portion 23 moves downward, and the connecting portion 25 and the connecting portion 26 are as shown in FIG. As shown in FIG. 4, the core members 10, 11 and 12 are separated from the inner surface of the winding roll 3 by contracting in a planar direction in plan view.

(Features of winding core mechanism 1)
In the winding core mechanism 1 as described above, the three core members 10, 11 and 12 move from the inside to the outside of the winding roll 3 by the user operating the handle of the operation unit 30 (clockwise rotation). It is pressed with a predetermined pressure. Therefore, since the three core members 10, 11, 12 form the core of the winding roll 3 by the operation of the user, the object 7 can be wound.

  In addition, the user operates the handle of the operation unit 30 (rotates left) to move the three core members 10, 11 and 12 from the outside to the inside, and the three core members 10, 11, 12 can be separated from the inner circumferential surface of the winding roll 3. Therefore, the winding roll 3 in which the winding of the winding object 7 is completed can be removed from the core members 10, 11, 12.

That is, since the take-up roll 3 can be easily removed and there is no need to use a core such as a paper tube, it is possible to provide the low cost core core mechanism 1 which does not require the separation of the core and the operation cost.
Furthermore, when the object to be wound 7 is wound, the inner side surface of the handle of the operation unit 30 is wound while being in contact with the end surface of the winding roll 3. Therefore, the end face of the winding roll 3 can be made flat.

Other Embodiments
(1) In the above embodiment, although the core mechanism 1 has been described as being used for the slit piece winding device 2, an apparatus having a mechanism for winding the winding roll 3 by a so-called surface drive type rotational drive shaft 5, for example , Rewinders, etc. Further, since the winding core mechanism 1 can be attached and detached, the present invention can be applied to a shaftless winding device.

(2) In the said embodiment, although the core members 10, 11, 12 of 3 sheets were used, you may increase the number of core members further.
(3) In the above embodiment, a plurality of (three) core members 10, 11 and 12 having the same curvature radius in the circumferential direction are used, but bars such as metal and hard resin are equally distributed on the circumference. It may be arranged at intervals of

(4) In the above embodiment, the operation unit 30 is used as a member for flattening the end of the handle 32 and the winding roll 3 for operation, but a disk of the operation unit 30 is used as a pulley and a surface drive type The driving force from the rotational drive shaft 5 of the slit piece winding device may be transmitted.
(5) In the above embodiment, in order to feed the fitting portions 23 and 24 to the actuating shaft 22 on the inner circumferential surface of the fitting portions 23 and 24, a feed screw is used. It is also possible to use a so-called ball screw in which steel balls fitted in the spiral grooves are arranged.

  DESCRIPTION OF SYMBOLS 1 ... Core mechanism 2 ... Slit piece take-up device 3 ... Winding roll 5 ... Rotation drive shaft 7 ... Winding object 8 ... Table 10, 11, 12 ... Core member 20 ... Core member moving part 22 ... Working shaft 23 , 24 ... Coupling part 25, 26 ... Coupling part 30 ... Operation part 32 ... Handle 33 ... Disc-like member

Claims (3)

A surface drive for pressing a rotation drive shaft having a rotation axis parallel to the rotation shaft of the take-up roll on the outer periphery of the take-up roll against the surface of the take-up roll to take up an object to form a take-up roll. In a die slit piece winding device, a winding core mechanism constituting a rotary shaft of the winding roll, wherein
A plurality of core members in contact with the inner circumferential surface of the winding roll to wind the object to be wound to form the winding roll;
The plurality of core members are moved from the inside toward the outside to make it possible to press the plurality of core members against the inner circumferential surface of the winding roll with a predetermined pressure, and the plurality of core members from the outside to the inside A core member moving part which is moved toward the center so that the plurality of core members can be separated from the inner circumferential surface of the winding roll;
An operation unit for operating the core member moving unit by the operation of the user;
A winding core mechanism characterized by comprising. In the core mechanism according to claim 1,
The core member is
Consisting of three members whose length in the central axis direction is the same as that of the winding roll and whose circumferential radius of curvature is the same,
The core member moving unit is
An operating shaft having the same rotating shaft as the rotating shaft of the core member, provided with a spiral groove on the outer peripheral surface, and rotated by the operating portion;
A fitting portion which engages with the spiral groove of the actuating shaft and moves in the direction of the rotational shaft of the actuating shaft with the rotation of the actuating shaft;
A connecting portion for connecting the fitting portion and the three members of the core member;
A winding core mechanism characterized by comprising. In the winding core mechanism according to claim 1 or 2,
The operation unit is
An end face member provided at one end of the core member moving part, for contacting the end face of the winding roll when forming the winding roll by winding up the object to be wound, and forming the end face flatly Winding core mechanism characterized by having.