JP2019001559A - Curve belt conveyor - Google Patents

Abstract

To provide a curve belt conveyor capable of holding a winding state of a curve belt and preventing damage thereof while being able to normally convey a conveyance article; and capable of rapidly carrying out attaching/detaching work for the curve belt, and of further reducing a manufacturing cost.SOLUTION: An upstream side roller 2a and a downstream side roller 2b around which a curve belt 1 is wound are pivotally supported with difference of elevation from each other in a width direction of the curve belt; a conveyance surface of the curve belt is inclined within a range spread over the upstream side roller and the downstream side roller; and a driving rotation part 3 for endlessly rotating the curve belt is arranged so as to be inclined along inclination of the conveyance surface.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a curved belt conveyor, and relates to an endless curved belt conveyor having a slope for drawing a curve from one end to the other end.

  An endless curved belt conveyor having a slope from one end to the other end is an endless curved belt stretched between two tapered rollers in the vertical position, as described in Patent Document 1 below. The outer peripheral portion is locked by locking means, and two taper rollers are driven to rotate in the same direction by separate motors.

  The curved belt conveyor described in Patent Document 1 can be transferred from a low conveyor to a high conveyor while changing the direction, and the two taper rollers are driven and rotated. The whole area of the outer periphery of the belt is locked by locking means.

  As a result, even if the total rotational driving force of both taper rollers is large, the tensile force acting on the inner peripheral side acting on the curved belt can be reduced, and the moving force to the inside of the curved belt can be reduced. As a result, the curve belt can be prevented from coming off from the upper and lower taper rollers, and the curve belt can be prevented from being damaged.

Japanese Patent Publication No. 7-35202

  However, since the curved belt conveyor according to the prior art of Patent Document 1 rotates and drives two upper and lower taper rollers by separate motors, it is necessary to synchronize the rotation speed and rotation start / stop of each motor. If there is a difference in the rotation speed between the upper and lower taper rollers, the curved belt will be wavy or displaced, and this will cause problems such as not only the conveyed object being conveyed normally but also coming off from the taper roller or being damaged. .

  Further, since the locking means has a structure for locking the entire area of the outer periphery of the curve belt, there also arises a problem that a considerable time is required for the attachment / detachment work at the time of exchanging the curve belt or maintenance.

  In addition, since the two motors and each member constituting the locking means are necessary, there is a problem that the efficiency of the manufacturing work of the curved belt conveyor is low and the cost is increased due to the number of members.

  For this reason, the above-mentioned problems such as being able to normally transport the conveyed product, maintaining the winding state of the curved belt and preventing damage, detaching the curved belt quickly, and reducing the manufacturing cost can be solved. A curved belt conveyor is desired.

  In order to solve such problems, the present invention employs the following means.

  A curved belt provided with a planar arc-shaped conveyance surface and having an endless shape and an axis parallel to the radial line of the curved belt so as to wind the upstream end and the downstream end of the curved belt The endless rotation of the curved belt is performed by sandwiching a part of the large-diameter side peripheral edge of one or both of the upstream side roller and the downstream side roller and the forward side and the backward side of the curved belt. The upstream roller and the downstream roller are pivotally supported with a difference in height in the thickness direction of the curved belt, and the transport surface is connected to the upstream roller and the upstream roller. The curve belt conveyor is configured such that the curve belt is wound so as to be inclined in a range extending to the downstream roller, and the drive rotating portion is arranged to be inclined along the inclination of the transport surface.

  It is preferable that the drive rotation unit is disposed on a radial line between the upstream end and the downstream end of the curved belt so that the rotation direction is orthogonal to the radial line.

  The sandwiching roller is disposed upstream or downstream of the drive rotation unit, or upstream and downstream, so as to sandwich a partial range of the peripheral edge on the large-diameter side of the curved belt, It is preferable to have an axis parallel to the diameter of the curve belt.

  The curved belt is preferably formed by folding a planar circular band with the center line of the circular band as a fold line.

It is a front view of the curve belt conveyor of the embodiment concerning the present invention. It is a top view of FIG. It is a left view of FIG. It is A arrow directional view of FIG. It is a B arrow view of FIG. (a) is a development top view of a curve belt, (b) is a top view of a curve belt.

  Hereinafter, a curved belt conveyor A according to an embodiment of the present invention will be described with reference to FIGS.

  As shown in FIGS. 1 and 2, the curved belt conveyor A is disposed so as to extend between the downstream end of the low side conveyor B and the upstream end of the high side conveyor C, and is conveyed from the low side conveyor B. An object can be transferred to the high side conveyor C. (Conveyed along the direction of the white arrow in FIGS. 1 and 2)

  Here, the arrangement configuration of the low-side conveyor B and the high-side conveyor C is arranged with a difference in height in FIG. 1 and in plan view with the conveying directions (indicated by arrows) in FIG. Arranged in parallel, for example, an arrangement that can efficiently construct a transport system in a limited space.

  The curved belt conveyor A arranged so as to cover the low-side conveyor B and the high-side conveyor C having such an arrangement is conveyed from the low-side conveyor B to the high-side conveyor C while changing the direction at 180 degrees. Transport.

  Hereinafter, the configuration of the curved belt conveyor A will be specifically described. In addition, each embodiment described below does not limit the present invention.

  The curved belt conveyor A includes a curved belt 1 having a planar semicircular arc-shaped conveying surface 10, an upstream roller 2 a around which the upstream end of the curved belt 1 is wound, and the curved belt 1. A downstream roller 2b around which the downstream end is wound, a drive rotation unit 3 disposed so as to rotate the curve belt 1 endlessly while sandwiching the forward path 1A side and the return path 1B side of the curve belt 1, and drive rotation On the upstream side and the downstream side of the portion 3, clamping rollers 4 and 5 are provided so as to sandwich the forward path 1 </ b> A side and the return path 1 </ b> B side of the curved belt 1.

  Here, as shown in FIG. 6A, the curved belt 1 is folded as shown in FIG. 6B by folding the planar circular annular band 100 with the center line 101 of the annular band 100 as a fold line. Further, it is formed in an endless shape having a plane semicircular conveyance surface 10.

  In the annular band 100, a surface (surface that becomes the conveyance surface 10) from the peripheral end edge 102 on the small diameter side to the peripheral end edge 103 on the large diameter side is very slightly from the peripheral end edge 102 toward the peripheral end edge 103. It is formed in the shape of a truncated cone in an inclined side view.

  The inclination angle from the peripheral edge 102 toward the peripheral edge 103 is adjusted by the height difference between the low side conveyor B and the high side conveyor C. If the height difference is large, the inclination angle is large and the height difference is small. If so, the angle of inclination becomes smaller.

  The upstream roller 2a is rotatably supported so as to be parallel to the rotation shaft B1 of the low-side conveyor B, and the downstream roller 2b is rotatable so as to be parallel to the rotation shaft C1 of the high-side conveyor C. It is pivotally supported.

  The curved belt 1 wound around the upstream roller 2a and the downstream roller 2b that are pivotally supported in this way has a spiral inclined surface in which the conveying surface 10 extends from a low place to a high place.

  The drive rotation unit 3 is disposed on the radial line L located at the center between the upstream end 11 and the downstream end 12 of the curve belt 1 so that the rotation direction is perpendicular to the radial line L, and the drive mechanism 6 is driven. It is designed to rotate by force.

  The drive rotating unit 3 is composed of a pair of upper and lower rotating members 3a, 3b and 3a, 3c that sandwich the peripheral surface of the curved belt 1 on the forward path 1A side and the return path 1B side from the upper and lower sides. A drive mechanism 6 that drives and rotates 3a, 3b, and 3c is disposed.

  As the structure of the rotating members 3a, 3b, 3c, for example, the same structure as that of the rotating member disclosed in Japanese Patent No. 4871532 owned by the present applicant can be used.

  The structure of the rotating members 3a, 3b, and 3c and the outline of the drive mechanism 6 will be described. The rotating member 3a is wound so as to rotate endlessly over the two timing pulleys 30a and 31a. The timing belt 32 a and a plurality of magnets 33 a fixed to the outer surface of the timing belt 32 a with a predetermined interval in the circumferential direction are configured, and timing pulleys 30 a and 31 a are pivotally supported by the support plate 30.

  The rotation members 3b and 3c have the same configuration as the rotation member 3a. In the drawing, the rotation member 3b includes timing pulleys 30b and 31b, a timing belt 32b, and a plurality of magnets 33b. The timing pulleys 30c and 31c, the timing belt 32c, and the plurality of magnets 33c are provided, and the timing pulleys 30b and 31b and the timing pulleys 30c and 31c are pivotally supported by the support plate 30.

  Such rotating members 3a, 3b, and 3c sandwich the curve belt 1 by using the attractive force of the magnets 33a, 33b, and 33c.

  Further, as shown in FIG. 1, the rotating members 3b and 3c are rotatable in the direction (indicated by arrows) in which the rotating members 3b and 3c approach and separate from the rotating member 3a with the timing pulleys 31b and 30c as the center. Has been.

  The rotation of the rotating members 3b and 3c is guided along an arc-shaped long hole 30A which is long in the vertical direction and is opened in the support plate 30, and the knob bolt 30B is screwed into the rotating members 3b and 3c through the long hole 30A. By this, the position which can clamp the curve belt 1 of rotating member 3b, 3c is fixable.

  Further, by loosening the knob bolt 30B, the rotating members 3b and 3c can be rotated in a direction away from the rotating member 3a, and the rotation of the curved belt can be released by this rotation. The curve belt 1 can be attached and detached.

  Note that the magnet 33a may be used only for the rotating member 3a, and the rotating members 3b and 3c may be made of a material that is attracted to the magnet 33a, or the magnets 33a and 33b may be used for one of the rotating member 3a and the rotating members 3b and 3c. (33c) may be used, and the other material may be used that is attracted to the magnets 33a and 33b (33c).

  The drive mechanism 6 includes a motor 60 attached to the support plate 30 and a motor shaft 61 that pivotally supports the timing pulley 31a. The timing pulley 31a is driven to rotate by the rotation of the motor shaft 61, and the drive rotation causes The timing belt 32a is rotated endlessly, and the timing pulley 30a is driven to rotate via the timing belt 32a.

  That is, since the curved belt 1 is clamped by the magnetic force between the rotating member 3a and the rotating member 3b, and the curved belt 1 is clamped by the magnetic force between the rotating member 3a and the rotating member 3c, the rotating member 3a and the rotating member 3b Contact friction occurs between the rotating member 3a and the rotating member 3c, and the curve belt 1 can be rotated endlessly by driving rotation of the rotating member 3a by the drive mechanism 6 due to the contact friction. It has become.

  The rotating members 3a, 3b, and 3c are arranged at an angle along the inclination of the curved belt 1, and all of the magnets 33a located on the side facing the conveying surface 10 are in contact with the conveying surface 10. At the same time, all of the magnets 33 b and 33 c positioned on the side facing the surface of the curved belt 1 parallel to the conveying surface 10 are in contact with the surface of the curved belt 1 parallel to the conveying surface 10.

  The support plate 30 is supported by the frame F, and the support plate 30 is screwed into the frame F by passing a knob bolt 32 through a long circular arc-shaped hole 31 opened in the support plate 30 in the vertical direction. Attach to F.

  Further, by loosening the knob bolt 32, the support plate 30 can be swung with respect to the frame F along the arc of the long hole 31. By swinging the support plate 30, the rotating members 3a, 3b, 3c The angle can be adjusted.

  As shown in FIG. 4, the sandwiching roller 4 is disposed on the upstream side of the drive rotation unit 3, and is a pair of upper and lower rollers that sandwich the outer circumferential surface of the curved belt 1 on the forward path 1 </ b> A side and the return path 1 </ b> B side from above and below. The members 4a and 4b and the roller members 4c and 4d are configured such that the roller members 4a and 4b and the roller members 4c and 4d are rotatably supported with respect to the support plate 40.

  The sandwiching roller 4 is disposed so that the axes of the roller members 4a and 4b and the roller members 4c and 4d are parallel to the radial line L1 of the curved belt 1 and perpendicular to the radial line L1 as shown in FIG. ing.

  The roller members 4a and 4b and the roller members 4c and 4d are axially supported so as to be aligned on the upstream side and the downstream side, and are rotated by contact friction with the curve belt 1 that rotates endlessly by the drive rotating unit 3. Yes.

  The roller member 4 a and the roller member 4 c are movable with respect to the support plate 40, and the roller member 4 b and the roller member 4 d are not moved relative to the support plate 40.

  Specifically, as shown in FIG. 4, the roller member 4 a and the roller member 4 c are supported by a support plate 40 having an axis parallel to the axis of the roller member 4 a and the roller member 4 c. The roller member 4a and the roller member 4c are moved closer to and away from the roller members 4b and 4d by the rotation of the support rod 41.

  The support rod 41 is configured such that the roller member 4a, the roller member 4c, the roller member 4b, and the roller member 4d are moved to the roller member 4b and the roller member 4d by a tension spring 42 provided so as to extend between the support plate 40 and the support rod 41. The roller members 4a and 4b are brought into contact with the roller members 4c and 4d by this urging force, so that the roller members 4a and 4b are in contact with the roller members 4c and 4d. A clamping force is generated between them, and the curve belt 1 can be rotated while being clamped by this clamping force.

  The support plate 40 is provided with a plurality of latching portions 42a for latching the ends of the tension springs 42 in the vertical direction. By adjusting the latching position of the tension springs 42, the urging force is increased and decreased. The clamping force can be adjusted with the strength of the urging force.

  The curved belt is clamped by rotating the support rod 41 in the direction separating the roller member 4b and the roller member 4d from the roller members 4a and 4c (indicated by arrows) against the urging force of the tension spring 42. Can be released, and the curve belt 1 can be attached and detached in this pinching release state.

  Similarly to the support plate 30, the support plate 40 has an arc-shaped long hole 43 that is long in the vertical direction. By passing the knob bolt 44 through the long hole 43 and screwing it into the frame F, the holding roller 4 Is attached to the frame F.

  Further, by loosening the knob bolt 44, the support plate 40 can be swung along the arc of the long hole 43 with respect to the frame F, and the angle of the holding roller 4 is adjusted by the swing of the support plate 40. be able to.

  As shown in FIG. 5, the sandwiching roller 5 has the same structure as the sandwiching roller 4 and is disposed at a higher position than the sandwiching roller 4 on the downstream side of the drive rotation unit 3. In addition, the code | symbol of each component, such as the clamping roller 5, is set to the roller members 5a and 5b and the roller members 5c and 5d, the support plate 50, the support rod 51, the tension spring 52, the long hole 53, and the knob bolt 54.

  The drive rotation unit 3, the sandwiching roller 4, and the sandwiching roller 5 are rotated while sandwiching the peripheral surface on the large diameter side of the curve belt 1, thereby holding the large diameter side of the curve belt 1. As indicated by the arrow (the white arrow shown in FIG. 2), the curve belt 1 can be rotated endlessly while being pulled from the large diameter side of the curve belt 1 in the outer direction perpendicular to the diameter lines L and L1.

  As a result, the curved belt 1 that rotates endlessly can be tensioned, and the winding state of the curved belt 1 around the upstream roller 2a and the downstream roller 2b can be maintained.

  According to the curved belt conveyor A having such a configuration, all the rotating members 3a, 3b, 3c are driven by rotating the timing pulley 30a of the rotating member 3a in the driving rotating unit 3 by using one motor 60. The sandwiching rollers 4 and 5 and the curve belt 1 can be rotated.

  In addition, since the endless rotating curve belt 1 can be tensioned, the bending of the conveyance surface 10 of the curve belt 1 can be suppressed by the tension of the curve belt 1.

  In addition, the drive rotation unit 3 that rotates the curve belt 1 endlessly has a function of tensioning the curve belt 1 and maintaining the winding state, and sandwiches a part of the curve belt 1. The sandwiching roller 4 and the sandwiching roller 5 having a function of holding the curving belt 1 and sandwiching a part of the curving belt 1 are arranged at two locations on the upstream side and the downstream side. Therefore, the curved belt conveyor A can be configured with fewer components than the conventional curved belt conveyor according to the prior art.

  Therefore, a curved belt conveyor A that can normally convey a conveyed product, can hold the wound state of the curved belt 1 and prevent breakage, can quickly attach and detach the curved belt 1, and can reduce manufacturing costs. Can provide.

  In the illustrated curved belt conveyor A, the rotating members 3a, 3b, and 3c are configured as the driving rotating unit 3 in which the centers in the length direction (rotating direction) are shifted from each other in the rotating direction of the curved belt 1. The arrangement form of 3a, 3b, and 3c may be such that the rotation members 3a, 3b, and 3c are arranged such that the centers in the length direction (rotation direction) are aligned on the same line in the vertical direction (not shown). .

  The illustrated curved belt conveyor A is configured to include the drive rotation unit 3 and the two sandwiching rollers 4 and 5, but may include only the drive rotation unit 3 or the drive rotation unit 3 and one It is good also as a form provided with the clamping roller 4 (not shown).

  In the case where only the drive rotating unit 3 is provided, it is preferably disposed on the radial line L at the center of the curve belt 1, and in the case where the drive rotating unit 3 and one clamping roller 4 are provided, FIG. It is preferable to arrange on the two radial lines L1 shown in FIG.

  Further, the rotation direction of the drive rotation unit 3 and the sandwiching rollers 4 and 5 is not limited to the direction orthogonal to the diameter line L1 of the curve belt 1 (intersects at 90 degrees), but at an angle exceeding 90 degrees with respect to the diameter line L1. In any case, the curve belt 1 can be tensioned and the curve belt 1 can be normally rotated endlessly. Just cross over.

  The illustrated curved belt conveyor A has a shape in which the curved belt 1 has a flat semicircular shape (an arc having an opening angle of 180 degrees). However, the opening angle of the curved belt 1 is not limited to 180 degrees, and the lower side. It can be changed according to the arrangement form of the conveyor and the high side conveyor (not shown).

  Moreover, although the illustrated curved belt conveyor A is illustrated so as to convey the conveyed product from a low place to a high place, the conveyance direction may be conveyed from a high place to a low place.

  As described above, the embodiments of the present invention have been described in detail with reference to the drawings. However, the specific configuration is not limited to these embodiments, and the design can be changed without departing from the scope of the present invention. Is included in the present invention. In addition, the above-described embodiments can be combined by utilizing each other's technology as long as there is no particular contradiction or problem in the purpose and configuration.

A: Curve belt conveyor L: Diameter line 1: Curve belt 10: Conveying surface 11: Upstream end 12: Downstream end 1A: Outbound path 1B: Return path 2a: Upstream roller 2b: Downstream roller 3: Drive rotation unit 4: Nipping roller 5: clamping roller 100: annular belt 101: center line

Claims (4)

A curved belt formed with an endless shape with a plane arc-shaped conveying surface;
An upstream roller and a downstream roller having an axis parallel to the radial line of the curved belt, and pivotally supported so that an upstream end and a downstream end of the curved belt are wound;
A drive rotation unit arranged to endlessly rotate the curve belt, sandwiching a range of a part of the periphery of the large diameter side of one of the forward path side and the return path side of the curve belt, or both;
The upstream roller and the downstream roller are pivotally supported with a difference in height in the thickness direction of the curved belt, and the conveying surface is inclined in a range extending between the upstream roller and the downstream roller. The curved belt is wound,
A curved belt conveyor in which the drive rotation unit is arranged to incline along the inclination of the transport surface.   The curve belt conveyor according to claim 1, wherein the drive rotation unit is disposed on a radial line between an upstream end and a downstream end of the curved belt so that a rotation direction is orthogonal to the radial line.   The sandwiching roller is disposed upstream or downstream of the drive rotation unit, or upstream and downstream, so as to sandwich a partial range of the peripheral edge on the large-diameter side of the curved belt, The curved belt conveyor according to claim 1, wherein the curved belt conveyor has an axis parallel to a radial line of the curved belt.   The curved belt conveyor according to any one of claims 1 to 3, wherein the curved belt is formed by folding a planar circular belt with a center line of the circular belt as a folding line.

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