Rotating body support device

Abstract

To provide a coupling device which can connect a first connecting member to a second connecting member with a simple structure, and a support device for a rotator using the same.SOLUTION: A first connecting member 72 includes: a first body 76 formed in a circular columnar shape and having a left rotating shaft 2 attached thereto; and a first protrusive piece 78 having a semi-circular shape in a vertical cross section protruding from the first body 76 along an axial direction. A second connecting member 74 includes: a second body 86 formed in a circular columnar shape and having an output shaft 26 attached thereto; and a second protrusive piece 88 formed in a semi-circular shape in a vertical cross section protruding from the second body 86 along the axial direction. A first abutment surface 82 of the first protrusive piece 78 and a second abutment surface 92 of the second protrusive piece 88 are made to abut on each other, facing one another.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention provides times This relates to a support device for a rolling body. [Background technology]

[0002] 2. Description of the Related Art Coupling devices are used to connect the rotating shaft of a rotating body, such as a roll that transports a web or a core around which a web is wound, to the output shaft of a motor or a reducer.

[0003] A conventional coupling device comprises a first connecting member and a second connecting member, with the cylindrical first connecting member fixed to the rotating shaft and the cylindrical second connecting member fixed to the output shaft. The first connecting member has a circular insertion hole opening in the axial direction, and the second connecting member has an insertion protrusion that can be inserted into the insertion hole. The insertion protrusion of the second connecting member is inserted into and engaged with the insertion hole of the first connecting member, coupling (connecting) the rotating shaft and output shaft so that they rotate together. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2000-257647 Summary of the Invention [Problem to be solved by the invention]

[0005] However, in order to insert the insertion protrusion of the first connecting member into the insertion hole of the second connecting member, it is necessary to retract the first connecting member, which has an insertion hole, to the opposite side of the second connecting member by an amount equal to the length of the insertion protrusion, which creates problems in that the structure of the coupling device becomes complicated and the connection work is time-consuming.

[0006] In view of the above problems, the present invention provides a method for connecting a first connecting member and a second connecting member with a simple structure. times The object is to provide a support device for a rolling body. [Means for solving the problem]

[0007] An embodiment of the present invention comprises: a pair of left and right support legs placed on a horizontal surface; a rotating body arranged horizontally between the pair of left and right support legs and consisting of a roll for transporting a web or a core around which a web is wound; a pair of left and right rotating shafts protruding in the left and right directions from both left and right sides of the rotating body; a left bearing provided on the left rotating shaft; a right bearing provided on the right rotating shaft; a left bearing portion provided on an upper part of the left support leg and rotatably supporting the left bearing; a right bearing portion provided on an upper part of the right support leg and rotatably supporting the right bearing; and a coupling device that connects the rotating shaft and the output shaft of a motor or a reducer, wherein the left bearing portion comprises a left bearing support portion that can receive the left bearing and a left bearing lid portion that covers the peripheral surface of the left bearing, and the left bearing is fixed by being covered with the left bearing lid portion, and the right bearing portion comprises a right bearing support portion that can receive the right bearing and a right bearing lid portion that covers the peripheral surface of the right bearing, and the right bearing is fixed by being covered with the right bearing lid portion, and the coupling device is attached to one of the rotating shafts to connect one of the rotating shafts and the output shaft. The motor comprises a first connecting member and a second connecting member attached to the output shaft, the first connecting member having a cylindrical first body and a first protruding piece having a semicircular cross section protruding from the first body along the axial direction of the first body, one of the rotation shafts being fixed coaxially with the first body to a circular surface opposite to the surface from which the first protruding piece protrudes, the first protruding piece having a semicircular first end surface at an end of the first protruding piece and a flat first abutment surface formed along the axial direction of the first protruding piece, and the second connecting member a cylindrical second body and a second protruding piece having a semicircular cross section protruding from the second body along the axial direction of the second body, the output shaft being fixed coaxially to the second body on the circular surface opposite to the surface from which the second protruding piece protrudes, the second protruding piece having a semicircular second end surface at an end of the second protruding piece and a flat second abutment surface formed along the axial direction of the second protruding piece, the first abutment surface of the first protruding piece and the second abutment surface of the second protruding piece being abutted against each other so as to face each other. Rotating body support device is. [Effects of the Invention]

[0009] According to the present invention, the first connecting member and the second connecting member can be connected simply by abutting the first abutment surface of the first protrusion of the first connecting member and the second abutment surface of the second protrusion of the second connecting member so that they face each other. [Brief explanation of the drawings]

[0010] [Figure 1] FIG. 2 is a rear view of the unwinding device showing one embodiment of the present invention. [Figure 2] FIG. [Figure 3] FIG. 2 is an enlarged vertical cross-sectional view of the vicinity of a coupling device. [Figure 4] FIG. 4 is a cross-sectional view taken along line AA in FIG. [Figure 5] FIG. 10 is a right side view showing the left bearing portion, the left rolling base, and the left moving base. DETAILED DESCRIPTION OF THE INVENTION

[0011] A support device for a winding core 1 using a coupling device 70 according to one embodiment of the present invention will be described below with reference to Figures 1 to 5. The support device of this embodiment is an unwinding device 10 that unwinds a long web W from a winding core 1, and the web W is a film, cloth, paper, or the like.

[0012] (1) Structure of the unwinding device 10 The overall structure of the unwinding device 10 will be described with reference to Figures 1 to 3 and 5. In this specification, the web W is transported in the front-rear direction from rear to front, and the left and right directions are determined when viewed from rear to front.

[0013] As shown in FIG. 2, the web W is fully wound around the core 1, and a left rotating shaft (first shaft) 2 and a right rotating shaft 4 protrude from both left and right ends of the core 1. The inner ring of a left bearing 3 is fixed to the left rotating shaft 2, and the inner ring of a right bearing 5 is fixed to the right rotating shaft 4.

[0014] 1 and 2, a rectangular parallelepiped motor fixing base 14, a left support leg 16, and a right support leg 18 are erected on a base 12 placed on a horizontal floor, in that order from the left. A motor 20 and a reducer 24 connected to a rotating shaft 22 of the motor 20 are provided on the upper surface of the motor fixing base 14. An output shaft (second shaft) 26 protrudes from the right side of the reducer 24.

[0015] As shown in Fig. 5, a pair of front and rear rails 30 and 32 are provided parallel to each other in the left-right direction on the upper surface of the left support leg 16. Furthermore, as shown in Figs. 1 and 3, a pair of left and right support parts 17, 17 protrude from the left and right upper surface of the left support leg 16 between the pair of front and rear rails 30 and 32, and a shaft 36 is provided horizontally in the left-right direction between the pair of left and right support parts 17, 17.

[0016] 1, 3, and 5, a plate-shaped left movable platform 28 is disposed on the upper surface of the left support leg 16 and is placed thereon so as to be movable left and right along a pair of front and rear rails 30 and 32. A shaft receiving portion 34 protrudes downward from the underside of the left movable platform 28, between the pair of front and rear rails 30 and 32, and a shaft 36 passes left and right through a shaft hole that opens left and right in this shaft receiving portion 34. When the left movable platform 28 moves left and right, the shaft receiving portion 34 moves left and right relative to the shaft 36.

[0017] 2 and 5, a plate-shaped left rolling table 38 that extends rearward is provided on the top surface of the left moving table 28. Side walls 37, 37 protrude from the left and right sides of the left rolling table 38. The rear end of the left rolling table 38 extends rearward beyond the rear of the base 12, and a left stop portion 40 protrudes upward from the rear end of the left rolling table 38.

[0018] As shown in Figure 5, a left bearing unit 42 is provided above the left moving table 28 and in front of the left rolling table 38. This left bearing unit 42 is capable of fixing the outer ring of the left bearing 3, which is fixed to the left rotating shaft 2 of the winding core 1. To explain in more detail, the left bearing unit 42 is made up of a left bearing support unit 44 that can support only the front lower peripheral surface of the left bearing 3, and a left bearing lid unit 46 that covers the upper and rear peripheral surfaces of the left bearing 3. A hinge shaft 48 is provided in the left-right direction at the front end of the left bearing support unit 44, and rotatably supports the left bearing lid unit 46. In this way, the left bearing 3 is fitted into the left bearing support unit 44, and then the left bearing lid unit 46 is rotated rearward about the hinge shaft 48 to close the lid and fix the left bearing 3.

[0019] As shown in FIG. 1 , like the left support leg 16, the right support leg 18 also has a right movable platform 50 disposed on its upper surface. This right movable platform 50 is also movable left and right on a pair of front and rear rails (not shown), and a screw receiving portion 52 protrudes from the underside of the right movable platform 50. A female threaded portion opens left and right in the screw receiving portion 52, and a male threaded portion 54 that penetrates the female threaded portion left and right is threadedly engaged with the female threaded portion. The male threaded portion 54 is rotatably supported by support portions 19, 19 protruding from both the left and right sides of the right support leg 18, and a male threaded portion 54 protrudes from the right support portion 19, and a handle 56 is attached to the tip of the male threaded portion 54.

[0020] As shown in Figure 2, a right rolling table 58 is provided on the upper surface of the right movable table 50, with the rear end of the right rolling table 58 extending rearward beyond the rear of the base 12 and a right stop portion 60 provided at its tip. Side walls 57, 57 protrude from the left and right sides of the right rolling table 58. A right bearing portion 62 is provided above the right movable table 50 at the front end of the right rolling table 58. Like the left bearing portion 42, the right bearing portion 62 also has a right bearing support portion 64 and a right bearing cover portion 66 provided rotatably relative to the right bearing support portion 64, and fixes the right bearing 5 of the winding core 1.

[0021] (2) Coupling device 70 Next, with reference to FIGS. 3 and 4, the coupling device 70 that connects the left rotating shaft 2 of the core 1 and the output shaft 26 of the reducer 24 will be described.

[0022] As shown in FIG. 3, the coupling device 70 comprises a first connecting member 72 fixed to the left rotating shaft 2 and a second connecting member 74 fixed to the output shaft 26.

[0023] 3 and 4, the first connecting member 72 has a cylindrical first main body 76 and a first protruding piece 78 with a semicircular vertical cross section that protrudes axially from the upper part of the semicircular left side surface of the first main body 76. A left-handed rotation shaft 2 with a square cross section is coaxially fitted into the circular right side surface of the cylindrical first connecting member 72.

[0024] The first protrusion 78 has a semicircular first end face 80 at the left end of the first protrusion 78, and a first abutment surface 82 which is a flat surface formed along the axial direction of the first protrusion 78.

[0025] As shown in Figures 3 and 4, a semicircular first body end surface 84 is present at the lower left side of the cylindrical first body 76, in the portion where the first protrusion 78, which has a semicircular cross section, does not protrude.

[0026] 3, the second connecting member 74 has a cylindrical second main body 86 and a second protruding piece 88 with a semicircular vertical cross section that protrudes axially from the lower part of the semicircular right side surface of the second main body 86. The output shaft 26, which has a circular cross section, is coaxially fitted into the circular left side surface of the cylindrical second connecting member 74.

[0027] The second protrusion 88 has a semicircular second end face 90 at the right end of the second protrusion 88 and a second abutment surface 92 which is a flat surface formed along the axial direction of the second protrusion 88.

[0028] Furthermore, a semicircular second main body end surface 94 exists at the upper right side surface of the cylindrical second main body 86, in a portion where the second protruding piece 88 with a semicircular vertical cross section does not protrude.

[0029] As shown in FIGS. 3 and 4, a resin portion 96 made of sheet-like MC nylon (monomer cast nylon) is attached to the surface of the second contact surface 92 of the second projecting piece 88.

[0030] 3 and 4, when coupling, i.e., connecting, the first connecting member 72 and the second connecting member 74, the first abutment surface 82 of the first protrusion 78 and the second abutment surface 92 of the second protrusion 88 are brought into opposing contact with each other so that the first connecting member 72 and the second connecting member 74 are integrated into a cylindrical shape. In this case, a small gap S is provided between the first end face 80 and the second main body end face 94, and similarly, a small gap S is provided between the second end face 90 and the first main body end face 84.

[0031] (3) When a fully wound core 1 is fixed to the unwinding device 10 Next, a case where a fully wound core 1 is rotatably fixed to the unwinding device 10 will be described.

[0032] First, the left bearing 3 and the first connecting member 72 of the coupling device 70 are fixed in advance to the left rotating shaft 2 of the winding core 1 on which the web W is fully wound. Also, the right bearing 5 is fixed in advance to the right rotating shaft 4. As shown by the two-dot chain line in FIG. 2 , the winding core 1 in the above state is placed between the pair of left and right rolling tables 38 and 58 by a crane or by human power. In this case, the left bearing 3 is placed on the left rolling table 38, and the right bearing 5 is placed on the right rolling table 58. At this time, the left rolling table 38 is provided with a left stop portion 40 and a pair of left and right side walls 37, 37, and the right rolling table 58 is provided with a right stop portion 60 and a pair of left and right side walls 57, 57, so the left bearing 3 and the right bearing 5 will not roll off the left rolling table 38 and the right rolling table 58.

[0033] As shown by the two-dot chain lines in FIG. 2 and FIG. 5, when the winding core 1 is pushed forward, the outer rings of the left bearing 3 and the right bearing 5 rotate, moving the left rolling table 38 and the right rolling table 58 forward. Note that because it is the outer rings that rotate, the fully wound winding core 1 and the first connecting member 72 do not rotate. The left bearing 3 then moves to the position of the left bearing support portion 44, and similarly, the right bearing 5 moves to the right bearing support portion 64. Note that the pair of left and right bearing covers 46 and 66 are left open. At this time, the first connecting member 72 also moves to the position of the second connecting member 74 without rotating. Then, as shown in FIGS. 3 and 4, the first contact surface 82 and the second contact surface 92 come into contact with each other so that they face each other and are integrated, forming a cylindrical connection. Note that if the first contact surface 82 and the second contact surface 92 are not facing each other, rotate the left rotating shaft 2 or the output shaft 26 to adjust them to facing each other.

[0034] Next, as shown in Figure 5, the pair of left and right bearing lids 46 and 66 are closed, and the left bearing 3 and right bearing 5 are fixed to the left bearing support 44 and right bearing support 64, respectively. This allows the fully wound winding core 1 to be rotatably supported between the pair of left and right bearings 42 and 62.

[0035] Next, as shown in Figure 5, in order to adjust the left-right position of the winding core 1 to match the unwinding position of the web W, the handle 56 is rotated, which moves the left moving table 28 and the right moving table 50 left-right. In this case, because a gap S is provided between the first connecting member 72 and the second connecting member 74, the winding core 1 can be moved left-right by the amount of this gap S.

[0036] Finally, when the motor 20 is rotated, the full winding core 1 rotates via the coupling device 70, and the web W can be unwound forward.

[0037] (4) Effects In the above embodiment, when connecting the first connecting member 72 and the second connecting member 74 of the coupling device 70, the connection can be achieved by abutting the first abutment surface 82 and the second abutment surface 92 so that they face each other. Therefore, there is no need to slide the coupling device in the axial direction as in the conventional case.

[0038] Furthermore, since the first connecting member 72 and the second connecting member 74 can be connected with a gap S, the position of the winding core 1 can be adjusted in the left-right direction by the gap S to match the unwinding position of the web W.

[0039] Furthermore, since the resin portion 96 is provided on the second contact surface 92, even if the resin portion 96 deteriorates due to contact, the resin portion 96 can be simply replaced.

[0040] In the above embodiment, the pair of left and right bearing portions 42 and 62 rotatably support the core 1, but instead, a roll that transports the web W may be rotatably supported.

[0041] Furthermore, in the above embodiment, the unwinding device 10 that unwinds the web W has been described, but instead, a winding device that winds the web W may be used.

[0042] Furthermore, in the above embodiment, the resin portion 96 is provided on the second end surface 90 of the second connecting member 74, but the resin portion 96 may be provided on the first end surface 80 of the first connecting member 72.

[0043] Although one embodiment of the present invention has been described above, this embodiment is presented by way of example and is not intended to limit the scope of the invention. These novel embodiments can be embodied in various other forms, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. These embodiments and their modifications are included within the scope and spirit of the invention, and are also included in the scope of the invention and its equivalents as defined in the claims. [Explanation of symbols]

[0044] DESCRIPTION OF SYMBOLS 1 Winding core, 2 Left rotating shaft, 3 Left bearing, 4 Right rotating shaft, 5 Right bearing, 10 Unwinding device, 20 Motor, 22 Rotating shaft, 24 Reducer, 26 Output shaft, 42 Left bearing portion, 58 Right bearing portion, 70 Coupling device, 72 First connecting member, 74 Second connecting member, 76 First main body, 78 First protruding piece, 80 First end face, 82 First contact surface, 86 Second main body, 88 Second protruding piece, 90 Second end face, 92 Second contact surface

Claims

1. A pair of left and right support legs installed on a horizontal surface; a rotating body arranged horizontally between the pair of left and right support legs, the rotating body being a roll for transporting a web or a core around which the web is wound; a pair of left and right rotating shafts protruding in the left and right directions from the left and right sides of the rotating body; a left bearing provided on the left rotating shaft; a right bearing provided on the right rotation shaft; a left bearing portion provided on an upper portion of the left support leg portion and rotatably supporting the left bearing; a right bearing portion provided on an upper portion of the right support leg portion and rotatably supporting the right bearing; a coupling device that connects either the left rotation shaft or the right rotation shaft to an output shaft of a motor or a reducer; and the left bearing portion includes a left bearing receiving portion that can receive the left bearing and a left bearing lid portion that covers the peripheral surface of the left bearing, and the left bearing is fixed by being covered with the left bearing lid portion; the right bearing portion includes a right bearing support portion that can receive the right bearing and a right bearing cover portion that covers the peripheral surface of the right bearing, and the right bearing is fixed by being covered with the right bearing cover portion; The coupling device comprises: a first connecting member attached to one of the rotating shafts and a second connecting member attached to the output shaft in order to connect the one of the rotating shafts and the output shaft; the first connecting member has a cylindrical first body and a first protruding piece having a semicircular vertical cross section protruding from the first body along the axial direction of the first body, one of the rotation shafts is fixed coaxially with the first body to a circular surface opposite to the surface from which the first protrusion protrudes, The first protrusion has a semicircular first end surface at an end of the first protrusion and a flat first abutment surface formed along the axial direction of the first protrusion, the second connecting member has a cylindrical second main body and a second projecting piece having a semicircular vertical cross section projecting from the second main body along the axial direction of the second main body, the output shaft is fixed coaxially to the second body on a circular surface opposite to the surface from which the second protrusion protrudes, the second protrusion has a semicircular second end surface at an end of the second protrusion and a flat second abutment surface formed along the axial direction of the second protrusion, The first abutment surface of the first protruding piece and the second abutment surface of the second protruding piece are brought into contact with each other so as to face each other. A supporting device for a rotating body characterized by:

2. A plate-shaped left rolling portion extending rearward from an upper portion of the left bearing portion so that the left bearing can roll from the left bearing support portion; a plate-shaped right rolling portion extending rearward from the right bearing portion so that the right bearing can roll from the right bearing support portion; The rotating body supporting device according to claim 1, further comprising:

3. a resin portion is provided on the first contact surface or the second contact surface; The support device for a rotating body according to claim 1 .

4. a gap is provided between the first end surface of the first connecting member and the second body of the second connecting member; a gap is provided between the first body of the first connecting member and the second end surface of the second connecting member; The pair of left and right bearing portions and the rotating body are movable together in the left-right direction by the distance of the gap. The support device for a rotating body according to claim 1 .

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