JP2011006261A - Carrying device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a carrying device which easily copes with various carrying objects with different sizes.SOLUTION: This carrying device 6 includes a first rotary body 11 having a first meshing object part 61, and one side sandwiching body 41 is arranged in the first rotary body 11. The carrying device 6 includes a second rotary body 12 having a second meshing object part 62, and the other side sandwiching body 46 is arranged in the second rotary body 12. The carrying device 6 includes a gear 66 having a first meshing part 71 meshing with the first meshing object part 61 and a second meshing part 72 meshing with the second meshing object part 62. When adjusting a separate distance between both sandwiching bodies 41 and 46, the first rotary body 11 and the second rotary body 12 rotate at the same rotation angle in the mutually different direction.

Description

  The present invention relates to a transport apparatus that transports an object to be transported.

  Conventionally, for example, a transfer device such as a star wheel device described in Patent Document 1 is known.

  This conventional conveying device conveys an object to be conveyed such as a container, and includes a rotating shaft, an upper flange and a lower flange attached to the rotating shaft, an upper star wheel engaged with the upper flange, and a lower flange. And a lower star wheel to be engaged. The upper star wheel and the lower star wheel are configured to be attachable and detachable, and are equally divided into four in the radial direction.

JP 2002-284343 A

  However, in the above-described conventional conveying device, the star wheel is certainly divided, so that the weight is reduced compared to the non-divided configuration and the replacement work is easy. Since the star wheel needs to be replaced every time the (diameter dimension) changes, it cannot be said that it is easy to cope with various objects to be conveyed having different sizes.

  SUMMARY An advantage of some aspects of the invention is that it provides a transport device that can easily cope with various types of transported objects having different sizes.

  The transport device according to claim 1 includes a first rotating body having a first meshed portion, a one-side clamping body provided on the first rotating body, a second rotating body having a second meshed portion, The other side holding body that is provided on the second rotating body and holds and conveys the object to be conveyed together with the one side holding body, the first meshing portion that meshes with the first meshing portion, and the second meshing portion. The first rotating body and the second rotating body in different directions when adjusting the separation distance between the one-side holding body and the other-side holding body. Are rotated by the same rotation angle.

  According to a second aspect of the present invention, there is provided the transport apparatus according to the first aspect, further comprising: a rotary drive shaft that rotates the first rotary body and the second rotary body, wherein the rotary drive shaft is the first rotary body and the second rotary body. It is arranged penetrating the rotating body.

  According to a third aspect of the present invention, in the conveying device according to the first or second aspect, the first rotating body and the second rotating body are arranged coaxially with each other and are rotatable about a common rotation center axis. The two gears are arranged at point-symmetric positions with the rotation center axis as the center.

  A conveying device according to a fourth aspect is the conveying device according to any one of the first to third aspects, wherein the gear is rotatable about a rotation central axis, and the first meshing portion is The second meshing portion is composed of a plurality of teeth positioned side by side on a virtual small circle centered on the rotation center axis. It is composed of teeth.

  According to the first aspect of the present invention, when the size of the transported object changes, it can be coped with by adjusting the separation distance between the one-side sandwiched body and the other-side sandwiched body. Easily accommodates transported items.

  According to the second aspect of the present invention, rotations other than the first rotator and the second rotator are utilized by utilizing the rotation drive shafts that are disposed through the first rotator and the second rotator. The body can be rotated.

  According to the third aspect of the invention, since the two gears are arranged at point-symmetric positions with the rotation center axis as the center, it is possible to prevent axial misalignment between the first rotating body and the second rotating body.

  According to the invention which concerns on Claim 4, a 1st meshing part is comprised by the several tooth located in a line on the virtual great circle centering on a rotation center axis line, and a 2nd meshing part has a rotation center axis line. Since it is composed of a plurality of teeth positioned side by side on a virtual small circle as the center, the first rotating body and the second rotating body can be appropriately rotated in different directions by the same rotation angle.

It is a top view of the lid attachment machine concerning one embodiment of the present invention. It is sectional drawing of the same lid attaching machine. It is sectional drawing of the same lid attaching machine. It is principal part sectional drawing of the 1st conveying apparatus of the same lid attachment machine. It is a principal part top view of a 1st conveying apparatus same as the above. It is principal part explanatory drawing of a 1st conveying apparatus same as the above. It is principal part sectional drawing of the 2nd conveying apparatus of the same lid attaching machine. It is a principal part top view of a 2nd conveying apparatus same as the above. It is a top view of the liquid filling machine which concerns on other embodiment of this invention. It is sectional drawing of a liquid filling machine same as the above. It is a top view of the upstream conveyance apparatus of a liquid filling machine same as the above. It is principal part sectional drawing of an upstream conveying apparatus same as the above. It is a principal part top view of an upstream conveying apparatus same as the above.

  An embodiment of the present invention will be described with reference to FIGS.

  In FIG. 1 to FIG. 3, reference numeral 1 denotes a lid attaching machine. The lid attaching machine 1 conveys a container a which is an object to be conveyed, and attaches a lid (cap) b to the upper end of the container a during the conveyance. It is.

  The container a is a bottle filled with a liquid which is a beverage such as wine, for example, and is a round beverage container having a substantially circular cross section. The lid b is attached to the thread groove on the outer peripheral side of the upper end of the container a by screwing.

  As shown in FIGS. 1 to 3, the lid attaching machine 1 receives a container a from a conveying means (not shown) such as a screw conveyor, and receives the received container a along a substantially arcuate guide portion 2. A first conveying device 6 to be conveyed and a screw groove portion on the outer peripheral side of the upper end of the container a while receiving the container a from the first conveying device 6 and conveying the received container a along the substantially arcuate guide portion 3 A second conveying device (conveying lid mounting device) 7 for attaching the lid b by screwing, and a container a with a lid from the second conveying device 7 and receiving the received container a into a substantially arcuate guide 4 And a third transport device 8 for transporting along. The container a unloaded from the third transport device 8 is transported toward the next process by a transport means (not shown) such as a screw conveyor.

  The first transport device 6 includes a rotary drive shaft 10 that is a rotary shaft in the vertical direction that rotates around a rotational center axis A in the vertical direction with power from a driving means (not shown) such as a motor, and the rotational drive. First to fourth rotating bodies 11, 12, 13, and 14 that are arranged coaxially with the shaft 10 and rotate integrally with the rotation drive shaft 10 about the rotation center axis A, and screws on the first rotating body 11 And a cover body 15 attached by an attachment member 18 such as the above.

  The rotary drive shaft 10 has a shaft portion 16 in the vertical direction and a flange portion 17 fixed to the middle portion in the vertical direction of the shaft portion 16.

  The first to fourth rotating bodies 11, 12, 13, 14 and the cover body 15 are all substantially plate-like and substantially circular annular, and have substantially circular holes 21, 22, 23, 24 at the center. , 25, and the shaft portion 16 of the rotary drive shaft 10 is inserted into these holes 21, 22, 23, 24, 25. That is, the rotary drive shaft 10 is rotatably disposed through the central portions of the first to fourth rotating bodies 11, 12, 13, 14 and the cover body 15.

  The first rotator (upper rotator) 11 and the second rotator (lower rotator) 12 are stacked one above the other, and the second rotator 12 is disposed on the upper surface of the flange portion 17. . The third rotating body (upper rotating body) 13 and the fourth rotating body (lower rotating body) 14 are positioned one above the other in a stacked manner. The first rotating body 11 and the third rotating body 13 are connected by the first connecting means 26, and the second rotating body 12 and the fourth rotating body 14 are connected by the second connecting means 27.

  The first connecting means 26 has a shaft-like connecting member 28, the lower end portion of the connecting member 28 is attached to the third rotating body 13 with an attaching member 29 such as a screw, and the upper end portion of the connecting member 28 is the first one. The rotating body 11 is attached by a mounting member 30 such as a screw.

  The second connecting means 27 has a shaft-like connecting member 31, and the lower end portion of the connecting member 31 is attached to the fourth rotating body 14 with an attaching member 32 such as a screw, and the screw hole in the upper end portion of the connecting member 31. A fastening member 34 such as a screw is screwed to the portion 33. Then, the first rotating body 11 and the second rotating body 12 are fixed to the flange portion 17 by the rotation of the tightening member 34 as the operation member in the tightening direction, and the tightening member 34 moves in the tightening release direction. The fixing is released by the rotation of.

  In the unlocked state, the first rotating body 11 and the second rotating body 12 can rotate about the rotation center axis A with respect to the rotation drive shaft 10, and the third rotating body 13 performs the first rotation. The fourth rotating body 14 is integrated with the second rotating body 12 with respect to the rotational driving shaft 10 and can be rotated about the rotational axis A with respect to the rotational driving shaft 10. It can be rotated around the rotation center axis A. That is, the third rotating body 13 and the fourth rotating body 14 are similarly interlocked according to the rotation of the first rotating body 11 and the second rotating body 12.

  A plurality of one-side holding bodies 41 are fixedly projected radially outward at the outer peripheral end of the first rotating body 11, and the plurality of one-side holding bodies 41 are arranged in the circumferential direction of the first rotating body 11. They are located side by side at equal intervals. The one-side clamping body 41 is integrally attached to the outer peripheral end of the first rotating body 11, and is attached to the lower surface of the plate part 42 by a mounting member 44 such as a screw so as to be detachable. It has a block-like contact portion 43 that comes into contact with the outer peripheral surface.

  At the outer peripheral end of the second rotating body 12, a plurality of other side holding bodies 46 that are spaced apart from the one side holding body 41 and hold the upper part of the container a together with the one side holding body 41 and convey it are directed radially outward. The plurality of other holding members 46 are fixedly projected, and are arranged side by side at equal intervals in the circumferential direction of the second rotating body 12. The other side sandwiching body 46 includes a plate portion 47 provided integrally with the outer peripheral end of the second rotating body 12, and is attached to the lower surface of the plate portion 47 by a mounting member 49 such as a screw so as to be detachable. It has a block-like contact portion 48 that comes into contact with the outer peripheral surface.

  A plurality of one-side clamping bodies 51 are fixedly projecting radially outward from the outer peripheral end of the third rotating body 13, and the plurality of one-side clamping bodies 51 are arranged in the circumferential direction of the third rotating body 13. They are located side by side at equal intervals. The one-side clamping body 51 is provided with a plate portion 52 provided integrally with the outer peripheral end of the third rotating body 13, and is attached to the upper surface of the plate portion 52 by a mounting member 54 such as a screw so as to be detachable. It has a block-like contact portion 53 that comes into contact with the outer peripheral surface.

  At the outer peripheral end of the fourth rotating body 14, a plurality of other side sandwiching bodies 56 that are spaced from and opposed to the one side sandwiching body 51 and sandwich and convey the lower part of the container a together with the one side sandwiching body 51 are directed radially outward. The plurality of other side sandwiching bodies 56 are fixedly projected, and are arranged side by side at equal intervals in the circumferential direction of the fourth rotating body 14. The other side sandwiching body 56 includes a plate portion 57 provided integrally with the outer peripheral end of the fourth rotating body 14, and is attached to the upper surface of the plate portion 57 by a mounting member 59 such as a screw so as to be detachable. It has a block-like contact portion 58 that comes into contact with the outer peripheral surface.

  As shown in FIGS. 1, 4, and 5, the first rotating body 11 has a plurality of, for example, two first meshed portions 61 on the inner peripheral portion. In other words, the first meshed portion 61 is formed in a segment gear shape at two opposing positions on the inner peripheral surface facing the hole 21 in the first rotating body 11. The first meshed portion 61 is composed of a plurality of teeth 61 a located side by side in the circumferential direction of the first rotating body 11.

  The 2nd rotary body 12 has the 2nd to-be-engaged part 62 spaced apart and opposed to the 1st to-be-engaged part 61 in an outer peripheral part. That is, the second rotating body 12 is fixed to the upper surface of the inner peripheral portion of the rotating main body 63 by welding or the like, and is installed in the hole 21 of the first rotating body 11, that is, the first rotation. A substantially circular annular gear portion 64 positioned inward of the body 11, and a second meshed portion 62 is formed on the outer peripheral surface of the gear portion 64 in a gear shape over the entire circumference. The second meshed portion 62 is configured by a plurality of teeth 62 a that are arranged side by side in the circumferential direction of the second rotating body 12 and are formed in the same shape as the teeth 61 a of the first meshed portion 61.

  A plurality of, for example, two substantially plate-like gears 66 are rotatably disposed between the first meshed portion 61 of the first rotating body 11 and the second meshed portion 62 of the second rotating body 12. The first meshed part 61 and the second meshed part 62 are spaced apart from each other via a gear 66.

  The gear 66 is attached to the upper surface of the flange portion 17 of the rotary drive shaft 10 by an attachment member (shaft member) 67 such as a screw so as to be rotatable about the attachment member 67. That is, the gear 66 is rotatable with respect to the flange portion 17 of the rotational drive shaft 10 about the vertical rotation center axis B passing through the axis of the mounting member 67. The rotation center axes (rotation fulcrums) B of the two gears 66 are positioned on a virtual circle centered on the rotation center axis A at intervals of about 180 degrees, and these two gears 66 are located at the rotation center axis A. Is disposed at a point-symmetrical position with respect to the center.

  Further, the upper portion of the gear 66 is located in the hole portion 21 of the first rotating body 11, the lower portion of the gear 66 is located in the gear hole portion 20 of the second rotating body 12, and the upper surface of the gear 66 is covered. Covered by body 15.

  The gear 66 has a first meshing portion 71 meshed with the first meshed portion 61 and a second meshing portion 72 meshed with the second meshed portion 62 on the outer peripheral portion.

  That is, the gear 66 is a large fan plate portion 74 formed in a substantially fan shape with the rotation center axis B as the center, and the gear 66 is provided substantially integrally with the large fan plate portion 74 and has the rotation center axis B as the center. A small fan plate portion 75 that is formed in a fan shape and has a radius dimension smaller than that of the large fan plate portion 74 is provided. The central angle of the large fan section 74 is, for example, 120 degrees, the central angle of the small fan section 75 is, for example, 240 degrees, and the central angle of the large fan section 74 is smaller than the central angle of the small fan section 75. Yes. And the 1st meshing part 71 is formed in the segment gear shape at the circular-arc-shaped outer peripheral part of the large fan board part 74, and this 1st meshing part 71 and the 1st meshed part 61 are always meshing | engaging each other. Further, a second meshing portion 72 is formed in a segment gear shape on the arcuate outer peripheral portion of the small fan plate portion 75, and the second meshing portion 72 and the second meshed portion 62 are always meshed with each other.

  As shown in FIG. 5, the first meshing portion 71 is composed of a plurality of teeth 71a positioned side by side on a virtual great circle C centered on the rotation center axis B, and the second meshing portion 72 is It is composed of a plurality of teeth 72a positioned side by side on a virtual small circle D centering on the rotation center axis B.

  The teeth 71a of the first meshing portion 71 and the teeth 72a of the second meshing portion 72 are formed in the same shape. That is, the teeth 71a of the first meshing portion 71, the teeth 72a of the second meshing portion 72, the teeth 61a of the first meshed portion 61, and the teeth 62a of the second meshed portion 62 are all the same shape. However, although not shown, the teeth 71a of the first meshing portion 71 (the teeth 61a of the first meshed portion 61) and the teeth 72a of the second meshing portion 72 (the teeth 62a of the second meshed portion 62) have different shapes. There may be.

Furthermore, as shown in FIG. 6, the distance between the rotation center axis B and the first meshing portion 71 (the radius of the virtual great circle C) r ₁ and the distance between the rotation center axis B and the second meshing portion 72 ( the ratio of the virtual ratio of the radius) r ₂ of the small circle D is the distance R ₂ between the distance R ₁ between the rotation center axis a and the first target engagement portion 61 the central axis of rotation a and the second target engagement portion 62 Is the same. That is, for example, in the example of FIG. 6, r ₁ : r ₂ = R ₁ : R ₂ = 2: 1, but is not limited to this value.

  And when adjusting the separation distance between the one side clamping bodies 41 and 51 and the other side clamping bodies 46 and 56 according to the magnitude | size of the container a, ie, the outer-diameter dimension of the container a, it shows to FIG. 5 and FIG. Thus, when the first rotating body 11 is rotated in one direction around the rotation center axis A with respect to the flange portion 17 of the rotation drive shaft 10, the gear 66 is moved according to the rotation of the first rotating body 11. It rotates about the rotation center axis B with respect to the flange portion 17. As a result, the rotational force is transmitted to the second rotating body 12 by the gear 66, and the second rotating body 12 rotates in the other direction opposite to one direction by the same rotation angle as the first rotating body 11. At the same time, the third rotating body 13 and the fourth rotating body 14 rotate by the same rotation angle in different directions.

  On the other hand, as shown in FIG. 2, the shaft portion 16 of the rotation drive shaft 10 protrudes upward from the hole portion 25 of the cover body 15, and this protrusion portion is integrated with the rotation drive shaft 10. A substantially plate-like rotating body 76 that rotates about the rotation center axis A is attached via an attaching means 78 so that the vertical position can be adjusted and exchanged.

  The rotating body 76 has a plurality of concave support portions 77 on the outer peripheral portion for supporting the neck portion (neck portion) a1 of the container a held by the one side holding members 41, 51 and the other side holding members 46, 56. ing.

  As shown in FIGS. 1, 2, 7, and 8, the second transport device 7 that also has a lid mounting function has a rotation center axis in the vertical direction by power from drive means (not shown) such as a motor. A rotary drive shaft 80 that is a rotary shaft that rotates in the vertical direction around A, and a rotary drive shaft 80 that is coaxially disposed with the rotary drive shaft 80 and rotates about the rotation center axis A. A first rotating body and second rotating bodies 81 and 82 are provided.

  The rotary drive shaft 80 has a shaft portion 86 in the vertical direction and a flange portion 87 fixed to the intermediate portion in the vertical direction of the shaft portion 86.

  Each of the first rotating body 81 and the second rotating body 82 is substantially plate-shaped and has a substantially circular annular shape, and has substantially circular holes 91 and 92 at the center. The shaft portion 86 of the rotation drive shaft 80 is inserted. That is, the rotation drive shaft 80 is rotatably disposed so as to penetrate through the central portions of the first rotating body 81 and the second rotating body 82.

  In addition, the first rotating body (upper rotating body) 81 and the second rotating body (lower rotating body) 82 are positioned one above the other in a stacked manner, and the second rotating body 82 is disposed on the upper surface of the flange portion 87. ing.

  Then, similarly to the first rotating body 11 and the second rotating body 12 of the first transport device 6, the first rotating body 81 and the second rotation are caused by the rotation of a tightening member (operation member) such as a screw in the tightening direction. The body 82 is fixed to the flange portion 87, and the fixing is released by the rotation of the tightening member in the tightening releasing direction. When the fixing is released, the first rotating body 81 and the second rotating body 82 rotate. The drive shaft 80 can be rotated about the rotation center axis A.

  A plurality of one-side holding bodies 101 are fixedly projecting radially outward from the outer peripheral end of the first rotating body 81, and the plurality of one-side holding bodies 101 are arranged in the circumferential direction of the first rotating body 81. They are located side by side at equal intervals. The one-side sandwiching body 101 has a plate portion 102 provided integrally with the outer peripheral end of the first rotating body 81, and is attached to the lower surface of the plate portion 102 by a mounting member 104 such as a screw so as to be detachable. It has a block-like contact portion 103 that comes into contact with the outer peripheral surface.

  At the outer peripheral end of the second rotating body 82, a plurality of other side holding bodies 106 which are spaced apart from the one side holding body 101 and hold the lower part of the container a together with the one side holding body 101 for conveyance are directed radially outward. The plurality of other sandwiching members 106 are fixedly projected, and are arranged side by side at equal intervals in the circumferential direction of the second rotating body 82. The other side sandwiching body 106 includes a plate portion 107 integrally provided at the outer peripheral end of the second rotating body 82, and is attached to the lower surface of the plate portion 107 by a mounting member 109 such as a screw so as to be detachable. It has a block-like contact portion 108 that comes into contact with the outer peripheral surface.

  Further, the first rotating body 81 has a plurality of, for example, two first meshed portions 111 as shown in FIGS. 1, 7, and 8. That is, the first meshed portion 111 is formed in a segment gear shape on the surface of the first rotating body 81 that faces each gear hole 94. The first meshed portion 111 is composed of a plurality of teeth 111 a positioned side by side in the circumferential direction of the first rotating body 81.

  The second rotating body 82 has a plurality of, for example, two second meshed portions 112 corresponding to the first meshed portion 111. That is, the second meshed portion 112 is formed in a segment gear shape on the surface of the second rotating body 82 facing each gear hole 95. The second meshed portion 112 is configured by a plurality of teeth 112 a that are arranged side by side in the circumferential direction of the second rotating body 82 and are formed in the same shape as the teeth 111 a of the first meshed portion 111.

  A plurality of, for example, two gears 116 are rotatably disposed between the first meshed portion 111 of the first rotating body 81 and the second meshed portion 112 of the second rotating body 82, and the first meshed portion The portion 111 and the second meshed portion 112 are opposed to each other with a gear 116 therebetween.

  The gear 116 is attached to the upper surface of the flange portion 87 of the rotation drive shaft 80 by an attachment member (shaft member) 117 such as a screw so as to be rotatable about the attachment member 117. That is, the gear 116 is rotatable with respect to the flange portion 87 of the rotation drive shaft 10 about the rotation center axis B in the vertical direction passing through the axis of the mounting member 117. Note that the rotation center axes (rotation fulcrums) B of the two gears 116 are positioned on a virtual circle centered on the rotation center axis A at an interval of about 180 degrees, and these two gears 116 are located at the rotation center axis A. Is disposed at a point-symmetrical position with respect to the center.

  The upper portion of the gear 116 is positioned in the gear hole 94 of the first rotating body 81, and the lower portion of the gear 116 is positioned in the gear hole 95 of the second rotating body 82. Is covered with a cover body 83.

  The gear 116 has a first meshing portion 121 that meshes with the first meshed portion 111 and a second meshing portion 122 that meshes with the second meshed portion 112 on the outer peripheral portion.

  That is, the gear 116 has a large fan plate portion 124 formed in a substantially fan shape with the rotation center axis B as the center, and a substantially integrated fan gear portion 124 that is provided integrally with the large fan plate portion 124 and has the rotation center axis B as the center. It has a small fan plate portion 125 that is formed in a fan shape and has a radial dimension smaller than that of the large fan plate portion 124. The central angle of the large fan section 124 is, for example, 120 degrees, the central angle of the small fan section 125 is, for example, 240 degrees, and the central angle of the large fan section 124 is smaller than the central angle of the small fan section 125. Yes. A first meshing portion 121 is formed in a segment gear shape on the arc-shaped outer peripheral portion of the large fan plate portion 124, and the first meshing portion 121 and the first meshed portion 111 are always meshed with each other. Further, a second meshing portion 122 is formed in a segment gear shape on the arcuate outer peripheral portion of the small fan plate portion 125, and the second meshing portion 122 and the second meshed portion 112 are always meshed with each other.

  Further, as shown in FIG. 8, the first meshing portion 121 is composed of a plurality of teeth 121a positioned side by side on a virtual great circle C centering on the rotation center axis B, and the second meshing portion 122 is It consists of a plurality of teeth 122a positioned side by side on a virtual small circle D centered on the rotation center axis B.

  The teeth 121a of the first meshing part 121 and the teeth 122a of the second meshing part 122 are formed in the same shape. That is, the teeth 121a of the first meshing portion 121, the teeth 122a of the second meshing portion 122, the teeth 111a of the first meshed portion 111, and the teeth 112a of the second meshed portion 112 all have the same shape. However, although not shown, the teeth 121a of the first meshing portion 121 (the teeth 111a of the first meshed portion 111) and the teeth 122a of the second meshing portion 122 (the teeth 112a of the second meshed portion 112) have different shapes. There may be.

Although not shown, the distance (the radius of the virtual great circle C) r ₁ between the rotation center axis B and the first meshing part 121, the rotation center axis B and the second meshing, as in the first transport device 6 described above. The ratio between the distance between the portions 122 (the radius of the virtual small circle D) r ₂ is the distance R ₁ between the rotation center axis A and the first meshed portion 111 and between the rotation center axis A and the second meshed portion 112. distance is the same as the ratio of R _2. That is, for example, in the example of FIG. 8, r ₁ : r ₂ = R ₁ : R ₂ = 5: 4, but is not limited to this value.

  Then, when adjusting the separation distance between the one-side holding body 101 and the other-side holding body 106 according to the size of the container a, that is, the outer diameter of the container a, as shown in FIG. When the first rotating body 81 is rotated in one direction around the rotation center axis A with respect to the flange portion 87, the gear 116 rotates relative to the flange portion 87 in accordance with the rotation of the first rotating body 81. It rotates around the movement center axis B. As a result, the rotational force is transmitted to the second rotating body 82 by the gear 116, and the second rotating body 82 rotates in the other direction opposite to the one direction by the same rotation angle as the first rotating body 81.

  On the other hand, as shown in FIG. 2, the shaft portion 86 of the rotation drive shaft 80 protrudes upward from the hole portion 91 of the first rotation body 81, and this protrusion portion is integrated with the rotation drive shaft 80. Thus, a rotating body 126 that rotates about the rotation center axis A is attached in a replaceable manner.

  The rotating body 126 includes a rotating main body portion 127 fixed to the upper end portion of the shaft portion 86, and a lid attaching portion 128 provided on the rotating main body portion 127 so as to be vertically movable and rotatable. Then, while the container a is being sandwiched and conveyed by the one-side sandwiching body 101 and the other-side sandwiching body 106, the lid mounting portion 128 is screwed onto the thread groove on the outer peripheral side of the upper end of the container a. Install.

  As apparent from FIG. 3, in the third transport device 8, unlike the first transport device 6, the hole 25 is not formed in the central portion of the cover body 15, and the shaft portion 16 of the rotary drive shaft 10 is not formed. The upper end surface is covered with the cover body 15, and the rotary body 76 is not attached to the rotary drive shaft 10. The other configuration of the third transfer device 8 is the same as that of the first transfer device 6.

  Next, the operation and the like of the above embodiment will be described.

  For example, when the container a filled with liquid is sequentially supplied from the upstream conveying means to the first conveying device 6, the container a includes the one-side holding bodies 41 and 51 and the other-side holding body 46, of the first conveying apparatus 6. 56, and is transported along the guide portion 2 with the neck portion a1 supported by the support portion 77 of the rotating body 76, and then the one-side sandwiched body 101 and the other-side sandwiched portion of the second transport device 7. It is conveyed along the guide portion 3 while being sandwiched from both sides by the bodies 46 and 56.

  During transport by the second transport device 7, the lid b is screwed to the outer peripheral side of the upper end portion of the container a by the lid mounting portion 128 of the rotating body 126.

  Next, the container a with the lid b is transported along the guide portion 4 while being sandwiched from both sides by the one side sandwiching bodies 41, 51 and the other side sandwiching bodies 46, 56 of the third transport device 8, Then, it is carried out to a downstream conveyance means.

  Here, for example, since the lid attaching operation for a predetermined number of containers a is completed, another container a that is thinner than one container a, that is, another container a that has an outer diameter smaller than that of one container a. In the case of performing the lid mounting operation (for example, the container s in FIG. 1), the separation distance between the sandwiching bodies is adjusted according to the outer diameter of the other container a.

  That is, for example, for the first transport device 6 and the third transport device 8, the one-side sandwiching body protruding from the first rotating body 11 in a state where the fixing of the rotating bodies 11, 12, 13, 14 to the flange portion 17 is released. 41 is held, and the 1st rotary body 11 is rotated to one direction with this one side clamping body 41. As shown in FIG.

  Then, the rotational force is transmitted to the second rotating body 12 through the gear 66, and the second rotating body 12 and the other side clamping body 46 have the same rotation angle as that of the first rotating body 11 in the other direction opposite to the one direction. Only turn. That is, the first rotator 11 and the second rotator 12 rotate in the different directions by the same rotation angle, and at the same time, the third rotator 13 and the fourth rotator 14 have the same rotation angles in the different directions. Only interlocking rotation.

  As a result, the one-side sandwiching bodies 41 and 51 and the other-side sandwiching bodies 46 and 56 that are opposed to each other are evenly rotated by the same rotation angle in the closing direction, which is a direction approaching each other about the rotation center axis A. . Thus, after adjusting the separation distance between the one side holding bodies 41 and 51 and the other side holding bodies 46 and 56, the rotating bodies 11, 12, 13, and 14 are fixed to the flange portion 17.

  Further, with respect to the second transport device 7, the one-side clamping body 101 is gripped by holding the one-side clamping body 101 protruding from the first rotating body 81 in a state where the fixing of the rotary bodies 81, 82 to the flange portion 87 is released. Together with 101, the first rotating body 81 is rotated in one direction.

  Then, this rotational force is transmitted to the second rotating body 82 through the gear 116, and the second rotating body 82 and the other side clamping body 106 have the same rotation angle as that of the first rotating body 81 in the other direction opposite to the one direction. Only turn.

  As a result, the one-side holding body 101 and the other-side holding body 106 that are spaced apart from each other are evenly rotated by the same rotation angle in the closing direction, which is a direction approaching each other, with the rotation center axis A as the center. Thus, after adjusting the separation distance between the one-side sandwiching body 101 and the other-side sandwiching body 106, the rotating bodies 81 and 82 are fixed to the flange portion 87.

  If necessary, the position adjustment operation of the guide portions 2, 3, 4 and the replacement operation of the rotating bodies 76, 126 are performed. Further, when changing to another container a that is thicker than one container a, the one side holding bodies 41, 51, 101 and the other side holding bodies 46, 56, 106 are rotated in the same direction in the opening direction, which is a direction away from each other. It will rotate evenly by the angle.

  Then, according to the transfer devices 6, 7, and 8 of the lid attaching machine 1, when the size (thickness) of the container a changes, the one side holding body 41, Since it can respond by adjusting the separation distance between 51, 101 and the other side clamping body 46, 56, 106, it is not necessary to perform the star wheel replacement work every time the size of the container a changes, It is possible to easily and appropriately handle various types of containers a having different sizes.

  Further, the rotary drive shafts 10 and 80 disposed through the first rotary bodies 11 and 81 and the second rotary bodies 12 and 82, that is, the rotary drive shafts 10 and 10 for rotating the rotary bodies 11, 12, 81 and 82, 80 can be used to rotate other rotators 76, 126 other than the rotators 11, 12, 81, 82, and therefore there is no need to provide a separate rotation drive shaft for rotating the rotators 76, 126. .

  Further, the first rotating bodies 11 and 81 and the second rotating bodies 12 and 82 are coaxially arranged so as to be rotatable around a common rotation center axis A, and two substantially circular gears 66 are provided. , 116 are arranged at point-symmetrical positions around the rotation center axis A, so that axial misalignment (center misalignment) of the first rotating bodies 11, 81 and the second rotating bodies 12, 82 can be prevented. The rotating bodies 11, 12, 81, 82 can be appropriately rotated around the rotation center axis A together with the rotation drive shafts 10, 80, and the container a can be smoothly conveyed.

  The first meshing portions 71 and 121 are composed of a plurality of teeth 71a and 121a positioned side by side on a virtual great circle C centered on the pivot center axis B, and the second meshing portions 72 and 122 are pivoted. Since the plurality of teeth 72a and 122a are arranged side by side on the virtual small circle D centered on the central axis B, the first rotating body 11 and 81 and the second rotating body 12 and 82 are arranged in different directions. Can be properly rotated by the same rotation angle.

  Next, another embodiment of the present invention will be described with reference to FIGS.

  9 and 10, 131 is a liquid filling machine, and this liquid filling machine 131 conveys a container a which is an object to be conveyed such as a bottle, and in the middle of the conveyance, a liquid such as wine, for example, It is for filling beverages. The container a is, for example, a round beverage container having a substantially circular cross section.

  The liquid filling machine 131 accepts a container a from a conveying means (not shown) such as a screw conveyor and conveys the received container a along a substantially arcuate guide part 132, and the upstream conveying device 136. The filling device 140 that receives the container a from the side conveying device 136 and fills the container a with liquid while conveying the received container a, and receives the liquid-filled container a from the filling device 140. and a downstream transfer device 137 for transferring a along a substantially arcuate guide portion 132. The container a carried out from the downstream side transport device 137 is transported toward the next process by a transport means (not shown) such as a screw conveyor.

  As is apparent from FIGS. 10 to 13, the upstream-side transport device 136 has the same basic configuration as the third transport device 8 of the lid attaching machine 1, but unlike the third transport device 8, The second rotating body 12 does not have the hole 22 at the center, and a substantially disc-shaped gear portion 64 is fixed to the upper surface of the center of the rotating main body 63 by bolting or welding.

  Further, the number of the holding bodies 41, 46, 51, 56, 101, 106 of the upstream transfer device 136 is larger than the number of the holding bodies 41, 46, 51, 56, 101, 106 of the third transfer device 8. Furthermore, the fastening member 34 of the upstream side transport device 136 has a lever portion 34a.

  The other configuration of the upstream side transport device 136 is the same as that of the third transport device 8. Further, the downstream side transport device 137 has the same configuration as the upstream side transport device 136.

  As shown in FIG. 10, the filling device 140 includes a transport unit 141 that supports the bottom surface of the container a and transports the container a, and a filling unit that fills the container a being transported by the transport unit 141 with liquid. 142. The transport unit 141 receives the container a from the upstream transport device 136 and then raises it to a predetermined height. After the filling by the filling unit 142 is completed, the transport unit 141 lowers the container a and passes it to the downstream transport device 137.

  According to the transfer devices 136 and 137 of the liquid filling machine 131, unlike the conventional case, it is not necessary to replace the star wheel every time the size of the container a changes, and the sizes of the outer diameter and the like are different. The same operational effects as those of the transfer devices 6, 7, and 8 can be achieved, such as being able to easily and appropriately deal with various containers a.

  In any of the above-described embodiments, the configuration including only the two gears 66 and 116 has been described. For example, the number of the gears 66 and 116 may be one, or three or four or more gears. May be arranged at intervals so as to be positioned on both sides of a virtual circle centered on the rotation center axis A.

  Moreover, the number (number of pockets) of each holding body 41, 46, 51, 56, 101, 106 is arbitrary, and may be other than five or ten.

  Furthermore, the container a that is the object to be conveyed is not limited to a round container having a circular cross section, and may be a rectangular container having a polygonal cross section or an article other than the container.

  In addition, the second meshed portion 62 is not limited to a configuration in which the second meshed portion 62 is formed in a gear shape over the entire circumference on the outer circumferential surface of the gear portion 64, and for example, the second meshed portion 62 is the first mesh on the outer circumferential surface of the gear portion 64. The structure etc. which were formed in the segment gear shape in the position corresponding to the to-be-engaged part 61 may be sufficient.

6 First transport device that is a transport device 7 Second transport device that is a transport device 8 Third transport device that is a transport device
10, 80 Rotation drive shaft
11, 81 1st rotating body
12, 82 Second rotating body
41, 101 One side clamp
46,106 The other side clamp
61,111 First meshed part
62,112 Second meshed part
66, 116 gear
71,121 1st meshing part
71a, 121a teeth
72,122 Second meshing part
72a, 122a teeth
136 Upstream conveying device as a conveying device
137 Downstream transport device as a transport device a Container to be transported A Rotation center axis B Rotation center axis C Virtual great circle D Virtual small circle

Claims (4)

A first rotating body having a first meshed portion;
One side clamping body provided in the first rotating body,
A second rotating body having a second meshed portion;
Provided on the second rotating body, the other side holding body for holding and transferring the object to be conveyed together with the one side holding body,
A gear having a first meshing portion meshing with the first meshed portion and a second meshing portion meshing with the second meshed portion;
The first rotating body and the second rotating body rotate in different directions by the same rotation angle when adjusting a separation distance between the one side holding body and the other side holding body. Conveying device. A rotation drive shaft for rotating the first rotating body and the second rotating body;
The conveying device according to claim 1, wherein the rotation drive shaft is disposed so as to penetrate through the first rotating body and the second rotating body. The first rotating body and the second rotating body are arranged coaxially with each other and are rotatable about a common rotation center axis.
The transport apparatus according to claim 1, wherein the two gears are disposed at point-symmetric positions with the rotation center axis as a center. The gear is rotatable around the rotation center axis,
The first meshing portion is composed of a plurality of teeth positioned side by side on a virtual great circle centered on the rotation center axis.
The conveyance according to any one of claims 1 to 3, wherein the second meshing portion is configured by a plurality of teeth positioned side by side on a virtual small circle centered on the rotation center axis. apparatus.

Images