JP2011246247A - Round conveyor apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a round conveyor apparatus which can prevent or suppress the scattering of dust when operating an apparatus and can stably rotate a conveyance belt.SOLUTION: The round conveyor apparatus is provided with: a pair of rollers 2, 3 which are arranged so that each extension of a center axis may mutually crosses at a predetermined angle; an endless conveyance belt 4 which has a planar sectorial shape and is rotatably wound around a pair of the rollers 2, 3, two or more engaging parts 5 which are projectingly provided at the outer peripheral part 40 of the conveyance belt 4 at a fixed interval; a guide 6 which is disposed along the outer peripheral part 40 at an inner direction side rather than the outer peripheral part 40 of the conveyance belt 4 and slidably comes into contact with the engaging part 5; and a drive part 7 which rotates the conveyance belt 4. The drive part 7 has teeth 95 engaged with engaging part 5 at its outer periphery and is provided with a rotary engaging part 70 in which a rotary shaft is arranged by being away from the outer peripheral part 40 of the conveyance belt 4, and a motive power part 71 which rotates the rotary engaging part 70.

Description

  The present invention relates to a round conveyor apparatus.

  Conventionally, when changing a conveyance direction in the conveyor which conveys a conveyed product, the round conveyor apparatus (curved conveyor) is used. As techniques related to such a round conveyor device, for example, there are the following Patent Documents 1 to 3.

  Patent Documents 1 and 2 include a flat fan-shaped conveyance belt, a transmission belt (V belt or the like) that circulates along the outer peripheral edge of the conveyance belt, a guide roller that guides the transmission belt, a conveyance belt, and a transmission belt. A round conveyor device is described which comprises a plurality of coupling tools spanned between them. Each of the coupling tools has one end connected to the conveying belt and the other end directly inserted into a hole formed in the transmission belt.

  In Patent Document 3, a flat fan-shaped conveying belt, rollers mounted on the outer peripheral portion of the conveying belt at predetermined intervals, a transmission belt hung on the driving side and the driven side, and a roller are in contact with each other. And a round conveyor device comprising a guide portion for preventing the inward bias of the conveyor belt. In the round conveyor device described in Patent Document 3, the conveying belt is rotated by bringing the back surface of the transmission belt into contact with the roller and transmitting the rotation of the transmission belt to the roller.

Japanese Patent Laid-Open No. 9-208023 JP 2009-83946 A JP-A-8-143122

  However, in the round conveyor apparatus described in Patent Documents 1 and 2, since the core wire is cut in the transmission belt to form a hole into which the connector is inserted, the strength of the transmission belt is reduced. Further, since the coupling tool is directly inserted into the hole of the transmission belt, there is a problem that the operation of the round conveyor device causes the hole diameter to be enlarged, the transmission belt to be stretched or broken, and the like. Furthermore, since the transmission belt is forcibly bent by the guide roller in order to circulate the transmission belt along the outer peripheral edge of the conveyor belt, a large amount of friction is generated between the transmission belt and the guide roller when the apparatus is in operation. As a result, there is a problem that the transmission belt is worn, and as a result, a lot of dust is scattered from the transmission belt due to the wear.

  Since the round conveyor apparatus described in Patent Document 3 is a friction transmission through the transmission belt, the rotation of the conveyor belt is caused by the scattering of dust due to the wear of the transmission belt and the transmission slip caused by the wear and elongation of the transmission belt. There is a problem that stability is lowered.

  As described above, in the round conveyor apparatus described in Patent Documents 1 to 3, since the transmission belt is worn by the operation of the conveyor, it is necessary to frequently replace the transmission belt which requires a lot of work time. There is a problem that the work burden is great. Moreover, when a conveyed product is a foodstuff, the dust scattered from the transmission belt may be mixed, and it was not preferable on food hygiene.

  Accordingly, the present invention has been made to solve the above-described problems, and the object of the present invention is to prevent and suppress dust scattering during operation of the apparatus and to stabilize the conveyor belt. Another object of the present invention is to provide a round conveyor device that can be rotated.

  In order to solve the above-mentioned problems, a round conveyor apparatus according to the present invention comprises a pair of rollers arranged so that the extension lines of the central axis intersect each other at a predetermined angle and a flat fan shape, and can be rotated by the pair of rollers. An endless conveying belt wound around the outer peripheral portion, a plurality of engaging portions projecting from the outer peripheral portion of the conveying belt at regular intervals, and on the inner side of the outer peripheral portion of the conveying belt. A guide portion disposed along an outer peripheral portion and slidably contacting the engaging portion; and a driving portion for rotating the conveying belt; and the driving portion meshes with the engaging portion. A rotating meshing portion having a rotating tooth disposed on the outer periphery of the conveyor belt and spaced apart from the outer peripheral portion of the conveyor belt, and a driving unit for rotating the rotating meshing portion. To do.

According to the above configuration, when the rotation meshing portion is rotated by the driving portion, the teeth of the rotation meshing portion are sequentially meshed with the engagement portions protruding at regular intervals on the outer peripheral portion of the conveyor belt, As a result, the conveyor belt is rotated. Further, during rotation of the conveyor belt, the engaging portion protruding from the outer peripheral portion of the conveyor belt comes into contact with the guide portion disposed along the outer peripheral portion on the inner side of the outer peripheral portion. Therefore, the inward deviation of the conveyor belt is prevented.
As described above, since the conveyor belt is rotated without using the transmission belt provided in the conventional apparatus, dust is radiated from the transmission belt, which has been a problem in the past, and the work burden associated with replacement of the transmission belt is reduced. It does not occur. Furthermore, since the conveyor belt is rotated by meshing the engaging portion protruding from the conveyor belt with the teeth of the rotary meshing portion, there is no transmission slip and the conveyor belt can be rotated stably. .

  Moreover, the round conveyor apparatus of this invention WHEREIN: The said rotating shaft of the said rotation meshing part in the said drive part may be arrange | positioned on the angle bisector between the said extension lines in a pair of said roller. According to said structure, the rotation transmission of the rotation meshing part to the engaging part protrudingly provided by the conveyance belt is made in the intermediate position of the circumferential direction of a conveyance belt. As a result, the feeding speed of the conveying belt between the intermediate position and each roller can be made the same. As a result, the feeding speed of the entire conveying belt can be made constant.

  Moreover, in the round conveyor apparatus of this invention, the said engaging part is further protrudingly provided by one pair from both the upper and lower surfaces of the said conveyance belt, and the said drive part is rotated by the said drive part synchronously. Two rotation meshing portions, and in the two rotation meshing portions, the teeth of the first rotation meshing portion mesh with one of the engagement portions of the pair of engagement portions, and the second rotation meshing portion of The tooth may be engaged with the other engaging portion of the pair of engaging portions. According to said structure, since a conveyance belt receives the transmission of the rotation from a rotation meshing part via the engaging part which protruded by facing from the upper and lower both surfaces of this conveyance belt, it is the conveyance belt. Compared with the case where transmission is received through the engaging portion protruding only from one side, the feeding of the conveyor belt can be made more reliable.

  Further, in the round conveyor apparatus of the present invention, the drive unit is disposed below the upper winding belt in the transport belt, and the teeth of the rotary meshing portion are from the lower winding belt in the transport belt. It may be engaged with the protruding engaging portion. According to said structure, the drive part is arrange | positioned below the upper winding belt, and at the time of rotation of a conveyance belt, the tooth | gear of a rotation meshing part is the engaging part projected from the upper winding belt. Not meshed. Thereby, since the movement of the conveyed product conveyed in an upper winding belt is not inhibited by a drive part, a conveyed product can be conveyed smoothly.

  Moreover, the round conveyor apparatus of this invention WHEREIN: The said rotating shaft of the said rotation meshing part in the said drive part may be arrange | positioned inside the said outer peripheral part of the said conveyance belt. According to the above configuration, the drive unit can be arranged on the inner side as compared with the case where the rotation shaft of the rotation meshing part is arranged on the outer side with respect to the outer peripheral part of the conveyor belt. The planar projection area of the conveyor device can be reduced, and as a result, the round conveyor device can be reduced in size.

  Dust scattering during operation of the apparatus can be prevented and suppressed, and the conveyor belt can be rotated stably.

It is a top view of the round conveyor apparatus which concerns on embodiment of this invention. It is a side view of the round conveyor apparatus which concerns on embodiment of this invention. It is an AA arrow directional view of FIG. It is a BB line arrow line view of FIG.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a plan view of a round conveyor device 1 according to an embodiment of the present invention. FIG. 2 is a side view of the round conveyor apparatus according to the embodiment of the present invention. 3 is a view taken along the line AA in FIG. 4 is a view taken in the direction of arrows BB in FIG.

(Round conveyor device 1)
As shown in FIG. 1, the round conveyor apparatus 1 of this embodiment receives a conveyed product W at a carry-in end from another belt conveyor device or the like (not shown), and conveys the received conveyed product W toward a carry-out end in a curved direction. And it is used in order to deliver the conveyed product W to other belt conveyors etc. which are not shown in figure.

As shown in FIGS. 1 to 4, the round conveyor device 1 includes a pair of rollers 2 and 3 attached to a main body frame 50, an endless conveyance belt 4 that is rotatably wound around the rollers 2 and 3, An engaging portion 5 that protrudes from the outer peripheral portion 40 of the conveying belt 4 at regular intervals, a guide portion 6 that abuts the engaging portion 5 so as to be slidable, and a driving portion 7 that rotates the conveying belt 4. I have.
(Main frame 50)
As shown in FIG. 1, the main body frame 50 connects an arcuate inner frame (not shown), an arcuate outer frame 51 disposed opposite to the inner frame, and ends of the inner frame and the outer frame 51. It is a substantially fan-shaped frame body composed of a pair of side beam frames 52 (52a, 52b). In the main body frame 50, a plurality of digit frames 53 connecting the inner frame and the outer frame 51 are disposed between the side digit frames 52. A plurality of crosspiece frames 54 that support the upper winding belt 4 a of the conveyor belt 4 are suspended on the side beam frame 52 and the beam frame 53. Further, an arcuate guide portion support frame 42 projects from the outer frame 51 toward the inner peripheral direction. The radius centers of the inner frame, the outer frame 51, and the guide support frame 42 are concentric.

  As shown in FIGS. 1 and 2, on the outside of the circumferential direction of the body frame 50 (hereinafter also referred to as the apparatus circumferential direction) in each side beam frame 52, as shown in FIGS. 55a, 55b), the interval adjusting means 56 (56a, 56b), the roller bearing portion 57 (57a, 57b) protruding from the roller position adjusting plate 55, and the rollers 2, 3 supported by the roller bearing portion 57, respectively. It is arranged. At both ends of the roller position adjustment plate 55, adjustment plate through holes 59 into which bolts 61 described later can be inserted are formed. The side beam frame 52 is formed with a frame through hole 58 into which a bolt 61 described later can be inserted at a position corresponding to the adjustment plate through hole 59 of the roller position adjustment plate 55.

  The roller bearing portion 57 is a bearing that protrudes outward from the roller position adjusting plate 55 in the circumferential direction of the apparatus and supports the rollers 2 and 3 rotatably.

  The interval adjusting means 56 is composed of a bolt 61 and a nut 60, and the bolt 61 is inserted into the frame through hole 58 of the side beam frame 52 and the adjustment plate through hole 59 of the roller position adjusting plate 55, and the nut 60 is bolted. By screwing to 61, the side beam frame 52 and the roller position adjusting plate 55 can be connected, and the distance L in the circumferential direction of the apparatus can be adjusted.

  Thus, by adjusting the distance L in the apparatus circumferential direction between the side beam frame 52 and the roller position adjusting plate 55 by the interval adjusting means 56, the distance in the apparatus circumferential direction between the rollers 2 and 3 can be adjusted. Therefore, the tension of the conveyor belt 4 wound around the rollers 2 and 3 can be optimized.

  In addition, four legs 41 are provided below the main body frame 50. Specifically, each leg position from each end position of the outer frame 51 and each position on the angle bisector between the central axes of a pair of rollers 2 and 3 to be described later in the inner frame and the outer frame 51 are provided. 41 is provided below.

(Rollers 2, 3)
The rollers 2 and 3 are driven rollers that have a function of winding and reversing the conveyor belt 4 and rotate as the conveyor belt 4 rotates (runs).

  As shown in FIG. 1, the pair of rollers 2 and 3 are arranged so that the extension lines of the central axes intersect each other at a predetermined angle (90 ° in the present embodiment). In other words, one roller 2 is arranged so as to have a predetermined opening angle (90 ° in the present embodiment) with respect to the other roller 3. The intersections of the extension lines of the central axes of the rollers 2 and 3 coincide with the radius centers of the inner frame, the outer frame 51, the guide portion support frame 42, and the conveyor belt 4. The central axis of the rollers 2 and 3 refers to the central axis of the roller disposed on the outermost side in the circumferential direction of the apparatus. In the present embodiment, the central axis of the upper roller group 20 described later in the roller 2; This refers to the central axis of the upper roller group 30 described later in the roller 3.

  As shown in FIG. 2, the roller 2 includes an upper roller group 20 in which a plurality of upper rollers 20a having the same diameter are arranged in series, and a lower roller group in which a plurality of lower rollers 21a having the same diameter are arranged in series. 21. Each of the upper roller 20a and the lower roller 21a is a roller that can rotate independently of each other, and the inner roller and the outer roller can rotate at different speeds. Therefore, even when the conveyor belt 4 traveling at different speeds on the outer side (outer peripheral side) and the inner side (inner peripheral side) is wound around the roller 2, the conveyor belt 4 is not slipped. Can be rotated. The lower roller group 21 is arranged closer to the inner side in the apparatus circumferential direction than the upper roller group 20.

  The roller 3 is composed of an upper roller group 30 and a lower roller group 31 in the same manner as the roller 2.

(Conveyor belt 4)
The conveyor belt 4 wound around the rollers 2 and 3 is a flat fan-shaped endless belt in which both ends of a belt-like belt are joined. Through holes 40a are formed in the outer peripheral portion 40 of the conveyor belt 4 at regular intervals.

(Engagement part 5)
The engaging portions 5 are provided so as to protrude from the upper and lower surfaces of the conveyor belt 4 at positions corresponding to the through holes 40 a of the conveyor belt 4. That is, the engaging portions 5 (5a, 5b) are provided to protrude from the upper and lower surfaces of the conveying belt 4 at regular intervals in the outer peripheral portion 40 of the conveying belt 4 at a predetermined interval.

  The engaging portion 5 is mainly composed of a bearing 81 that is a rotating body and bearing mounting means 82 that mounts the bearing 81 on the transport belt 4. The bearing mounting means 82 includes a mounting bolt 80 that is a mounting shaft and a nut 84. The mounting bolt 80 has a structure in which a shaft head 80b having a slightly larger diameter is provided on one end side of the shaft portion 80a and a screw portion 80c is provided on the other end side.

  In the present embodiment, the pair of engaging portions 5 (5a, 5b) protruding from both the upper and lower surfaces (both outer peripheral surface and inner peripheral surface) of the conveyor belt 4 are mounted by the same bearing mounting means 82. Yes. Specifically, as shown in FIG. 2, a pair of bearings 81 (81a, 81b) are arranged to face each other with the conveyance belt 4 interposed therebetween. The mounting bolt 80 is inserted from the outer peripheral surface side of the conveyor belt 4 in the order of the bearing 81a, the through hole 40a of the conveyor belt 4, and the bearing 81b. Bearings 81a and 81b are rotatably mounted on the shaft portion 80a of the inserted mounting bolt 80. Further, a nut 84 is screwed and tightened to the screw portion 80c. By doing so, the pair of engaging portions 5 (5a, 5b) are attached to the conveyor belt 4.

(Guide part 6)
The guide portion 6 is an arcuate guide rail disposed along the outer peripheral portion 40 on the inner side (inner peripheral side) than the outer peripheral portion 40 of the transport belt 4. This guide portion 6 slidably contacts a bearing 81a of the engaging portion 5 projecting from the conveyor belt 4 so that the inward bias of the conveyor belt 4 during operation of the round conveyor device 1 can be prevented. Blocking.

  The guide portion 6 includes two portions that come into contact with the engaging portions 5 protruding from the upper and lower surfaces of the upper winding belt 4a of the conveying belt 4, and the engaging portions 5 that protrude from the upper and lower surfaces of the lower winding belt 4b. There are a total of four locations in contact with each other, and they are attached to a guide support plate 43 fixed to the guide portion support frame 42. Incidentally, the two guide portions 6 that come into contact with the engaging portions 5 projecting from the upper and lower surfaces of the lower winding belt 4b are rotated so that the rotation mesh portion 70 described later does not come into contact with the rotation locus of the rotation mesh portion 70. It is not provided inside (within the rotation area).

(Driver 7)
The drive unit 7 rotates the conveyor belt 4, and includes two propeller-like rotation meshing portions 70 (70 a and 70 b) that are arranged to face each other with the conveyor belt 4 interposed therebetween, and a driving unit that rotates the rotation meshing portion 70. 71. The drive unit 7 is disposed below the upper winding belt 4 a in the transport belt 4.

  A plurality of teeth (four in this embodiment) are formed at equal intervals on the outer periphery of the rotating meshing portion 70 and meshed with the engaging portion 5 protruding from the conveyor belt 4. Further, the rotation meshing portions 70a and 70b have the same shape, and are rotated in synchronization by the driving portion 71 so that the planar projection areas substantially overlap during rotation.

  Further, the rotation meshing portions 70a and 70b are rotated in a rotation direction for moving the engaging portion 5 protruding from the lower winding belt 4b of the transport belt 4 from the carry-out end side toward the carry-in end side. When the rotary meshing portion 70 is rotated in this way, the lower winding belt 4b in the conveyor belt 4 travels from the carry-out end side toward the carry-in end side, and accordingly, the conveyed product W is placed thereon. The upper winding belt 4a travels from the carry-in end side toward the carry-out end side.

  The driving unit 71 includes a motor 72 with a speed reduction mechanism, a lower rotating shaft 73 that is a driving shaft of the motor 72, a sprocket 74 fixed to an intermediate portion of the lower rotating shaft 73, and an outer peripheral portion 40 of the conveyor belt 4. The auxiliary rotating shaft 75 provided on the shaft, the sprocket 76 fixed to the intermediate portion of the auxiliary rotating shaft 75, the sprocket 77 fixed to the upper end portion of the auxiliary rotating shaft 75, and the lower rotating shaft 73 are arranged coaxially. The upper rotary shaft 78, the sprocket 79 fixed to the shaft intermediate portion of the upper rotary shaft 78, the lower chain belt (not shown) attached to the sprocket 74 and the sprocket 76, and the upper chain belt attached to the sprocket 77 and the sprocket 79 (Not shown).

  The motor 72 is attached via a motor support member 90 to a leg 41 provided from a position on an angle bisector between the extension lines of the central axes of the pair of rollers 2 and 3 in the outer frame 51. . The auxiliary rotating shaft 75 is rotatably supported by a bearing 90a formed on the motor support member 90 at the lower end portion of the shaft. The upper rotary shaft 78 is rotatably supported by a bearing 91a formed on the upper rotary shaft holding plate 91 attached to the outer frame 51 at the upper end of the shaft.

  The lower rotating shaft 73 and the upper rotating shaft 78 are arranged on the angle bisector between the extension lines of the central axes of the pair of rollers 2 and 3 and are arranged at positions separated from the outer peripheral portion 40 of the conveyor belt 4. Has been. In the present embodiment, the lower rotating shaft 73 and the upper rotating shaft 78 are disposed on the inner side (inner circumferential direction side) than the outer peripheral portion 40 of the transport belt 4. In addition, a rotating meshing portion 70 a having a rotating shaft coaxial with the upper rotating shaft 78 is fixed to the lower end portion of the upper rotating shaft 78. Similarly, a rotation meshing portion 70 b having a rotation axis coaxial with the lower rotation shaft 73 is fixed to the upper end portion of the lower rotation shaft 73. That is, in this embodiment, the rotation shafts of the rotation meshing portions 70 a and 70 b are on the angle bisector between the extension lines of the central axes of the pair of rollers 2 and 3, and the outer peripheral portion 40 of the transport belt 4. It is arrange | positioned rather than the inward side.

  The teeth 95 of the rotary meshing portion 70a mesh with a bearing 81b of the engaging portion 5b that protrudes from the upper surface (inner peripheral surface) of the lower winding belt 4b of the conveyor belt 4. Further, the teeth 95 of the rotary meshing portion 70b mesh with a bearing 81a of the engaging portion 5a projecting from the lower surface (outer peripheral surface) of the lower winding belt 4b of the conveyor belt 4. In this way, the conveyor belt 4 receives the transmission of rotation from the rotary meshing portion 70 via the engaging portions 5 that project from the upper and lower surfaces of the conveyor belt 4 so as to face each other. Therefore, the feeding of the conveyor belt 4 can be made more reliable as compared with the case where transmission is received through the engaging portion protruding from only one side of the conveyor belt 4.

  When the motor 72 is driven, the lower rotary shaft 73 that is the drive shaft of the motor 72 is rotated, and the sprocket 74 and the rotary meshing portion 70b are rotated accordingly. Due to the rotation of the sprocket 74, the sprocket 76 is rotated through the lower chain belt, the auxiliary rotating shaft 75 is rotated, and the sprocket 77 is rotated. Then, by the rotation of the sprocket 77, the sprocket 79 rotates through the upper chain belt, the upper rotating shaft 78 rotates, and the rotating meshing portion 70a rotates. In this way, the rotary meshing portion 70 (70a and 70b) is rotated in synchronization by the driving portion 71. The rotation of the rotation meshing portion 70 is transmitted to the conveyor belt 4 through an engaging portion 5 protruding from the conveyor belt 4.

  As described above, the rotation shaft of the rotation meshing portion 70 a is disposed on the angle bisector between the extension lines of the central axes of the rollers 2 and 3, so that the engagement portion 5 protruding from the conveyor belt 4 is provided. The rotation of the rotation meshing portion 70 can be transmitted at an intermediate position in the circumferential direction of the conveyor belt 4. As a result, the feeding speed of the conveying belt 4 between the intermediate position and the roller 2 and the feeding speed of the conveying belt 4 between the intermediate position and the roller 3 can be made the same. The feed speed of the entire belt can be made constant. Furthermore, the rotation shaft of the rotation meshing portion 70 is disposed inward of the outer peripheral portion 40 of the conveyor belt 4, and the rotation shaft of the rotation meshing portion 70 is located outside the outer peripheral portion 40 of the conveyor belt 4. Compared with the case where it is arranged on the direction side, the drive unit 7 can be arranged on the inner side, so that the planar projection area of the round conveyor device 1 can be reduced, and as a result, the round conveyor device 1 It can be downsized.

  Further, the drive unit 7 is disposed below the upper winding belt 4 a in the conveyor belt 4, and the teeth 95 of the rotary meshing unit 70 are engaged with the lower winding belt 4 b in the conveyor belt 4. Since the movement of the conveyed product W conveyed by the upper winding belt 4a is not hindered by the driving unit 7 because the meshed portion 5 is engaged, the conveyed product W is smoothly conveyed from the carry-in end to the carry-out end. Can be made.

(Operation of the round conveyor device 1)
Next, operation | movement of the round conveyor apparatus 1 is demonstrated.

  First, when the round conveyor apparatus 1 is in operation, the rotation meshing unit 70 is rotated by driving the motor 72 of the driving unit 71. When the rotating meshing portion 70 rotates, the teeth 95 of the rotating meshing portion 70 are sequentially meshed with the engaging portions 5 protruding from the lower winding belt 4b of the conveyor belt 4, and the lower winding belt in the conveyor belt 4 is engaged. 4b travels from the carry-out end side toward the carry-in end side. Accordingly, the upper winding belt 4a travels from the carry-in end side toward the carry-out end side, and the conveyed product W placed on the upper roll belt 4a is carried from the carry-in end to the carry-out end. When the transport belt 4 is rotated, the engaging portion 5 protruding from the outer peripheral portion 40 of the transport belt 4 is disposed along the outer peripheral portion 40 inwardly of the outer peripheral portion 40. Further, since the sliding is performed while abutting against the guide portion 6, the inward deviation of the conveyor belt 4 is prevented.

  As described above, since the round conveyor apparatus 1 according to the present embodiment rotates the transport belt without using the transmission belt provided in the conventional apparatus, dust divergence from the transmission belt, which has been considered as a problem in the past, has occurred. In addition, there is no work burden associated with replacement of the transmission belt. Furthermore, since the conveyor belt is rotated by meshing the engaging portion protruding from the conveyor belt with the teeth of the rotary meshing portion, there is no transmission slip and the conveyor belt can be rotated stably. .

  The embodiments of the present invention have been described above, but only specific examples are illustrated, and the present invention is not particularly limited. Specific configurations and the like can be appropriately changed in design. In addition, the actions and effects described in the embodiments of the present invention only list the most preferable actions and effects resulting from the present invention, and the actions and effects according to the present invention are described in the embodiments of the present invention. It is not limited to things.

  For example, in the present embodiment, the round conveyor device 1 includes only one drive unit 7, but is not limited thereto, and may include a plurality. In this case, it is preferable that the central axes of the rotary meshing portions 70 included in each driving unit 7 are arranged at equal intervals on an arc centered at the intersection of the extension lines of the central axes of the rollers 2 and 3. By doing so, the feed speed of the conveyor belt 4 can be made constant.

DESCRIPTION OF SYMBOLS 1 Round conveyor apparatus 2 Roller 3 Roller 4 Conveying belt 4a Upper winding belt 4b Lower winding belt 5 Engagement part 6 Guide part 7 Drive part 70 Rotating meshing part 71 Driving part 95 Tooth

Claims (5)

A pair of rollers arranged such that the extension of the central axis intersects each other at a predetermined angle;
An endless conveyor belt that is formed in a flat fan shape and is rotatably wound around the pair of rollers;
A plurality of engaging portions protruding at regular intervals on the outer peripheral portion of the conveyor belt;
A guide portion disposed along the outer peripheral portion on the inner side of the outer peripheral portion of the transport belt and slidably contacting the engaging portion;
A drive unit that rotates the conveyor belt,
The drive unit is
A rotation meshing portion having teeth engaged with the engagement portion on an outer periphery, and a rotation shaft disposed away from the outer peripheral portion of the transport belt;
A round conveyor apparatus comprising: a driving unit that rotates the rotating meshing unit. The rotation shaft of the rotary meshing portion in the drive unit is
The round conveyor apparatus according to claim 1, wherein the round conveyor device is disposed on an angle bisector between the extension lines of the pair of rollers. The engagement portion is further provided to protrude from the upper and lower surfaces of the conveyor belt so as to face each other.
The drive unit includes two rotation meshing units that are rotated in synchronization by the driving unit,
In the two rotating meshing portions, the teeth of the first rotating meshing portion are meshed with one of the engaging portions of the pair of engaging portions, and the teeth of the second rotating meshing portion are engaged with the pair of engagements. The round conveyor device according to claim 1, wherein the round conveyor device is engaged with the other engaging portion of the portion. The drive unit is disposed below the upper winding belt in the conveyor belt,
The round conveyor according to any one of claims 1 to 3, wherein the teeth of the rotating meshing portion are meshed with the engaging portion protruding from a lower winding belt of the transport belt. apparatus.   5. The rotation shaft of the rotation meshing portion in the drive unit is disposed on the inner side of the outer peripheral portion of the transport belt, according to claim 1. Round conveyor device.

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