JP6577219B2 - Sorting device - Google Patents

Description

  The present invention relates to a switching device for a sorting conveyor.

  In the field of logistics, there are cases where articles with various shapes and dimensions of the object to be conveyed are mixed and sorted, and when sorting and transporting according to the direction of the rotating body, generally the larger the number of rotating bodies, the more Increasing the number of contact points with the object increases the conveyance effect, and the smaller the interval, the more stable and reliable sorting is possible up to a small conveyance object.

  Patent Document 1 discloses a sorting device using a rotating disk having a desired inclination angle, and Patent Document 2 discloses a plurality of specific configuration proposals in which a driving rotating body corresponding to the inclination propagates rotational force to the rotating disk. It is disclosed.

  As a specific rotating structure of a rotating disk in Patent Document 2, the side surface of a cylindrical rotating driving body or a drum-shaped driving rotating body having a small outer diameter at the center and a large outer diameter at both ends and an outer peripheral plane portion of the rotating disk There are three main cases: a first structure that is the same as that of Patent Document 1 that is in contact with the second structure, a second structure that includes a pulley, and a third structure that has the same inclination that is in pressure contact with the inclined surface. Has been raised.

  Here, in the first structure, the pressure contact surface is perpendicular to the rotation axis and a pressure contact force is applied in the surface direction of the rotating disk, and the second structure can transmit the rotation even if it has a slight angle, and the pulley By selecting the diameter of the rotating part, it is easy to obtain a large torque force, and unlike the former two, the third structure does not use a pulley and propagates the force by pressure contact with the driving rotating body with the same inclination angle The structure is such that a force is applied only to a part of the outer periphery of the inclined disk, but it has a feature that the rotating body is rotated only by a single axis drive.

Japanese Utility Model Publication No. 4-115820 Japanese Utility Model Publication No. 5-26921

  However, in the structure of the sorting device using these rotating disks, it is preferable to increase the number of rotating disks and reduce the interval in order to reliably sort the objects to be conveyed. There were restrictions on the distance dimensions, and there were limits to smooth conveyance and small objects.

  Further, when the number of rotating disks is increased, the number of driving units for driving the rotating disks must be increased at the same time, which involves the complexity of maintenance and inspection with a two-axis structure, and increases the initial cost and operational cost.

  In order to solve the above problems, the present invention reduces the interval between the rotating bodies and increases the number of the objects to be transported when transporting a wide variety of objects in the apparatus that sorts the rotating bodies when transporting articles. A sorting device with a structure that enables stable transport and simplifies the structure of the rotation drive unit, especially a structure that rotates multiple rotating bodies with a rotation drive mechanism that includes a power source. An object of the present invention is to provide a sorting apparatus that is greatly reduced and at the same time increases the number of contact points with the object to be conveyed, thereby improving the conveyance effect.

  In order to solve such a problem, the present invention provides a simple drive mechanism including a power source by rotating two annular rotators at the same time by a rotational drive body that is configured on one axis and symmetrical in the axial direction. Structure.

  In addition, the rotary drive body in the present invention is sandwiched with a certain pressure by the annular rotary bodies on both sides, and a moment is generated in the rotary drive body by applying a force from the opposite 180 degrees in the radial direction. However, it is possible to reduce the influence due to the moment by sufficiently securing the thickness of the rotary drive body and sufficiently reducing the clearance between the drive rotary body and the shaft.

Further, in the present invention, a structure to ensure sufficient inertia to obtain a rotation ring rotator is stabilized, in the contact region on the pressure contact portion of the rotary drive member and the annular rotary body to obtain a large frictional force By adopting a structure, it is possible to transmit effective rotational force even with a small pressing force.

  As described above, the structure having the uniaxial rotation drive body simplifies the structure of the sorting conveyor switching device, increases the number of rotation bodies, and reduces the gap between the rotation bodies. At the same time, it is possible to simplify the rotary drive mechanism including the power source, enabling smooth conveyance, and at the same time reducing member costs and maintenance and inspection costs.

  With these structures, it is possible to increase the number of contact points with articles without increasing the equipment cost in handling large and small articles on the sorting conveyor, and change the rotation position of the shaft unit appropriately according to the progress of the conveyed articles. By doing so, it is possible to reduce the impact on the goods and also reduce the clearance between the goods, so that the overall processing time can be made more efficient and safer, and the necessary maintenance is performed regularly. A structure that is easy to operate can be obtained.

It is a top view of the principal part of the conveying apparatus explaining arrangement | positioning and an effect | action of a sorting apparatus. It is a principle figure which shows the relationship between the rotary drive body and rotary disk in a conventional structure. FIG. 3A is a conceptual diagram for comparing a conventional structure and a structure according to an embodiment of the present invention, in which FIG. 3A is a conceptual diagram showing a configuration in which a plurality of single combination structures in the conventional structure are arranged, and FIG. It is a conceptual diagram which shows the structure which has arrange | positioned the rotation disk on the front and back both surfaces of the rotation drive body which concerns on embodiment of invention. FIG. 4 is a conceptual diagram showing contact points pressed by a rotary drive body and two annular rotary bodies according to an embodiment of the present invention, and FIG. FIG. 4 (b) shows a state of contact with the front side and the opposite side by 180 degrees, and FIG. 4 (b) is rotated 90 degrees from the state of FIG. 4 (a) to one side, with one side on the lower side and the other side on the upper side. 4 (c) shows a state rotated 90 degrees in the same direction from FIG. 4 (b), or a state rotated 180 degrees from FIG. 4 (a). FIG. 4 (c) shows a state rotated 90 degrees in the same direction, or a state rotated from FIG. 4 (a) 270 degrees. FIG. 5 is a diagram of a situation in which the fixing portion according to the embodiment of the present invention is rotated, and is a state diagram in which the state of FIG. 3 is viewed from directly above, and FIG. FIG. 5 (b) shows the state of the fixed part viewed from above, and FIG. 5 (c) shows the state of FIG. 4 (c). Fig. 5 (d) shows the state of the fixed part as viewed from directly above the state of Fig. 4 (d). It is a conceptual diagram of the state which attached the cyclic | annular rotary body to the outer periphery of the fixing | fixed part which concerns on embodiment of this invention. It is a figure which shows the state of the moment which arises by the pressing force which concerns on embodiment of this invention. FIG. 8A is a schematic diagram showing a relationship between force applied to the rotary drive body and the rotary body according to the embodiment of the present invention, and FIG. 8A shows a case where the width dimension of the rotary drive body is sufficiently large, and FIG. Indicates a case where the width dimension of the rotary drive is smaller than FIG. FIG. 9A is a schematic diagram showing a radial position of a region where a rotary drive body and two annular rotators according to an embodiment of the present invention are in pressure contact with each other, and FIG. 9A shows a large notch on the outer periphery of the annular rotator. FIG. 9 (b) shows an example of an improvement plan for FIG. 9 (a). FIG. 10A is a structural diagram showing the position of the rotation center axis of the annular rotator and the maximum outer shape value when the rotator rotates according to the embodiment of the present invention, and FIG. FIG. 10B shows a case where the rotation center axis of the annular rotator is biased to one of the thicknesses of the rotator. It is a block diagram which shows the positional relationship of the rotary part of the conveyor part and sorting apparatus which concern on embodiment of this invention. It is a schematic diagram of a shaft unit and a rotating body unit assembled with a rotating body according to an embodiment of the present invention.

  Hereinafter, a sorting device according to an embodiment of the present invention will be described with reference to the drawings. In the following, the range necessary for the description for achieving the object of the present invention is schematically shown, and the range necessary for the description of the relevant part of the present invention will be mainly described. According to a known technique.

  FIG. 1 shows the straight direction A and the sorting direction to the left and right, that is, to B or C, when the transported article 210 passes through the rotating body unit 220 in the transport apparatus 200 to which the sorting apparatus according to the present invention is applied. It is a typical top view of the principal part.

FIG. 2 shows the principle of rotating the rotary disk 1 while abutting the surface of the rotary drive body 4 positioned substantially at right angles, and the rotational force is transmitted by applying an axial force as indicated by F to each other. Structure.

  FIG. 3 is a conceptual diagram for comparing the conventional structure and the structure according to the embodiment of the present invention. In the conventional structure in FIG. 3A, the rotary drive body 41 and the rotary body 1 are one set, and a plurality of sets are incorporated in the shaft 2. (B), the structure which has arrange | positioned the rotary body 1 in the parallel state on the front and back both surfaces of the rotation drive body 42 which concerns on embodiment of this invention is shown.

FIG. 4 is a conceptual diagram showing contact points pressed by the rotary drive body 4 and the two annular rotary bodies 111 and 112 according to the embodiment of the present invention. In FIG. 4A, the rotary drive body 42 and one annular rotary body 111 are shown. There contact at the position of the contact point P ₁₁ on the front side of FIG respect to the rotation axis, and shows a state other one of the annular rotary body 112 is in contact with P ₁₂ opposite its 180 degrees. Further, in (b), it is rotated 90 degrees from the state of (a), and one annular rotator 111 is in contact with the lower P ₂₁ and the other annular rotator 112 is in contact with the upper P ₂₂ . Indicates the state. Further, (c) is a state rotated 90 degrees in the same direction from (b), or a state rotated 180 degrees from (a). In (d), it is further rotated 90 degrees in the same direction from (c). Or a state rotated by 270 degrees from (a), and shows that each contact is made at the contact point of P ₃₁ , P ₃₂ , and P ₄₁ , P ₄₂ .

FIG. 5 shows a fixing part according to an embodiment of the present invention, and is a diagram showing only the fixing part 3 overlooking the state of FIG. 4 from above, and shows the fixing part 3 attached integrally with the shaft 2. shows a state tilted disk 32 having an angle θ inclined obliquely by the rotation of the shaft 2, the conveying object is conveyed by the rotation of the annular rotary body, not shown. In the state of (a), the object to be transported is moved to the right side (direction B in FIG. 1) as indicated by the arrow, and in the state of (b) in which the fixing part is rotated 90 degrees, as shown in FIG. When a part of the maximum outer shape of the body 11 is lower than the height position of the conveyor or at the same surface position, it proceeds in the straight traveling direction (direction A in FIG. 1), and the fixed portion is further rotated 90 degrees ( In the state of c), the maximum outer shape portion of the annular rotator is brought to the left side (C direction in FIG. 1), and in the state of (d) in which the fixed portion is further rotated 90 degrees, as in the state of (b) above. Is partly lower than the height position of the conveyor or at the same surface position, it indicates that the vehicle travels in the straight direction (A direction in FIG. 1). Note that the arrow shown in FIG. 5 is in contact with the object to be conveyed on the outer peripheral surface of the annular rotating body 11 attached to the outer peripheral part, and is not in contact with the object to be conveyed on the illustrated surface. The conveyance direction in the state is shown.

  When the fixing part 3 is rotated to change the direction of the object to be conveyed, the shaft 4 integrated with the fixing part 3 is rotated to a desired angle by a pulley or a rack and pinion system, or a motor built-in type is used. Apply rotation control method.

  FIG. 6 is a diagram showing a concept of a state in which the annular rotator 11 is attached to the outer periphery of the fixed part 3 according to an embodiment of the present invention, and shows an attached state of the annular rotator 11 by a broken line around the fixed part 3. ing.

FIG. 7 is a view showing a state of moment generated by the pressing force according to the embodiment of the present invention, and the force and reaction in the contact portion generated by the forces F1 and F2 sandwiched in the axial direction with respect to the rotary drive body 42. (N11 and N12, and N21 and N22) shows the results in causing a moment (M1, M2) in your Keru moment (M) and rotating disk 111 to a rotary drive member 4 by the force occurs here moments It is necessary to consider the strength of each component that can sufficiently cope with the size.

FIG. 8 is a schematic diagram for comparing the width of the rotary drive body 4 according to the embodiment of the present invention, where (a) represents a case where the width (w) of the rotary drive body 42 is sufficiently large. shows a smaller (b), the force of the _{N 11} and _{N 21} is applied to the rotary drive member 42 by an external force _(F 1, _{F 2)} in FIG. 7, if there is a clearance between the shaft 2 rotating drive member 42 Therefore, a force is applied between the shaft 2 and the rotary drive body 42 at the action points N ₃₁ and N _{32 and} the action points N ₄₁ and N ₄₂ shown in the figure by the force of moment (M).

Here, the difference in the width (w ₁ , w ₂ ) of the rotary drive body 42 is that when the moment (M) is received by the shaft 2, the value of the force (N) applied to the point of action for the constant moment is:
M = wN
If the moment (M) is constant, the force of N ₃₁ and N ₄₁ (N ₃₂ and N _{42 in the} figure are reaction forces) increases as the position (w) from the action point serving as a fulcrum increases. It means to become smaller.

FIG. 9 is a schematic view showing a radial position of a region where the rotary drive body and the two annular rotators according to the embodiment of the present invention are in pressure contact with each other. In this case, as shown in (a), the substantial contact radius is smaller on the surface side having chamfering, and in the figure, the relationship is r1> r2. That is, as long as the rotary drive body 42 is a common drive body, the rotational speeds n1 and n2 of the annular rotary body depend on the size of the radius. Here, the ratio of n1 / n2 is ideally the same, but since there is always a slip with the load, there is virtually no problem with the load even if there is a difference of about 40%. It is important that the ratio of each pair is constant in a plurality of sets of arrangements. However, in order to reduce the difference positively, as shown in (b), in the rotational drive body 42, the above-mentioned difference is reduced by reducing the diameter of the side that contacts the non-chamfered side of the annular rotating body 111. It can be made smaller or equivalent. However, in this case, since the diameter of the contact portion becomes small, it is necessary to consider that the rotational force at the start-up is effectively propagated, such as increasing the frictional force.

FIG. 10 shows the position of the rotation center axis of the annular rotator 111, 112 according to the embodiment of the present invention and the maximum outer shape value when the rotator rotates. (A) shows the rotation of the annular rotator 111, 112. When the center axis O11 is located at the center (t1 / 2 ) of the thickness of the annular rotator, the maximum outer shape value when the rotator rotates is G1, and (b) is the rotation of the annular rotators 111 and 112. When the center axis O21 is biased to one of the thicknesses of the annular rotator as shown by t2, this indicates G2, which indicates that there is a relationship of G2> G1.

FIG. 11 is a diagram showing the height position relationship of the rotating body 1 in the conveyor unit 6 and the sorting apparatus according to the embodiment of the present invention (only the right half is shown here). The rotary drive body 4 fixed to the shaft 2 as the central axis, the fixed portion 3 having the inclined portion, the rotary body 1 in which the bearing 81 and the annular rotary body 11 are integrated are pressed against each other in the axial direction. As indicated by 5, a broken line arrow indicates that the height position of the maximum outer peripheral portion of the annular rotating body 11 is changed by changing the inclination direction of the fixed portion 3. The height shows the area | region D2 which protrudes from the height position of the conveyor part 6 for conveyance as an effective area | region (area | region of L1 as a width | variety). Incidentally, the effective area includes the thickness D1 of the conveyor section 6, the gap L between the conveyors, the maximum value D3 in which the annular rotating body 11 is buried from the surface position of the conveyor section 6, and the conveyor section with respect to the outer diameter of the driving rotating body 4 6 is determined by a margin gap D4 between the bottom surface 6 and the like.

  As shown in FIGS. 4 and 5, the amount of protrusion from the surface of the conveyor 6 can be gradually changed by rotating the fixed shaft 3. The impact on the article can be reduced by appropriately changing the rotational position of the shaft unit, and more effective impact reduction can be achieved by controlling the rotational angular velocity.

  FIG. 12 is a diagram schematically showing a rotator unit 220 and a shaft unit 221 in which a rotator according to an embodiment of the present invention is assembled. As an example, two rotary drive bodies 42 and 4 are provided on one shaft. The state of the shaft unit 221 that can be easily detached and the rotating unit unit 220 in which the shaft units are stacked in three stages is drawn, and the rotating unit 1 is also shown in FIGS. 4, 5, and 11. 11 is rotated at an arbitrary rotation angle so that the amount of protrusion from the conveyor surface position in the height direction of the rotating body shown in FIG. 11 can be changed simultaneously with the A, B, and C direction control. It becomes possible.

  Incidentally, the rotating body 1 attached to the shaft unit 221 may be one set or a plurality of sets, and the shaft unit 221 in the rotating body unit 220 is effective even if one or a plurality of shaft units 221 are arranged in a row.

  The transport apparatus according to the present invention is used in various places in various physical distributions and in various usage forms, but the simplification of the driving body structure reduces product costs and operation costs associated with maintenance and inspections. Therefore, the present invention has great applicability in various industries to which the transport device is applied. Furthermore, by appropriately changing the rotational position of the shaft unit, it is possible to reduce the impact on the articles, and the margin between the articles can be reduced, so that the utilization effect is increased.

1 rotating body 11 annular rotating body 12 sliding contact surface 111 first annular rotating body, 112 second annular rotating body 2 shaft 3 fixed portion shaft fixed to 31 shaft inclined portion inclined to shaft of 32 shaft 4 Rotation Drives 41 Rotation Drives for Single-sided Drives 42 Rotation Drives for Double-sided Drives 43 Other Structural Examples of Rotation Drives for Double-sided Drives 6 Conveyor Units 8 Slide-contacting Mechanisms such as Bearings 81 Contact mechanism 82 Sliding contact mechanism 200 between rotary drive body and shaft 200 Conveying device 210 Conveying article 220 Rotating body unit 221 Axis unit A, B, C Conveying direction F ₁ , F ₂ Pressing force N, N ₁₁ along the rotation axis N ₂₁ Force and reaction force on the point
N _31, N _32, N _41, N ₄₂ Force and reaction force between the rotary drive body and the shaft resulting from the pressing force n, n ₁ , n ₂ Rotation speed of the rotary drive body and rotation speed M, M _1, M ₂ moment force O ₁₁ , O ₂₁ Rotation center P ₁₁ , P ₁₂ , P ₂₁ , P ₂₂ , P ₃₁ , P ₃₂ , P ₄₁ , P ₄₂ in the rotation of the fixed part The contact point between the rotary drive surface and the annular rotator surface (The place hidden in the figure is indicated by a thin dot.)
t, t ₁ , t ₂ Thickness of the rolling drive body θ The angle of the inclined part of the fixed part relative to the shaft, or the angle of the annular rotating body

Claims (7)

A shaft that is substantially orthogonal to a transport direction in which a transport target is placed and transported on a transport path surface;
A drive rotator rotatably supported on the shaft;
A first fixed portion formed by integrating a first disk body having a predetermined angle with respect to the shaft on a first shaft fixed to one side of the drive rotating body in the axial direction of the shaft. When,
A second disk body, which is fixed or integrated with a second shaft fixed to the other side of the drive rotor in the axial direction of the shaft, is fixed or integrated with the shaft. A fixed part;
A first annular rotator that is arranged so as to be freely rotatable around the first fixed portion and has a sliding contact surface that is in pressure contact with the one side of the drive rotator;
And a second annular rotator having a sliding contact surface disposed so as to be freely rotatable around the second fixed portion and in contact with the other side of the drive rotator in a pressure contact state. . Said first, said second annular rotating body respectively first, sorting apparatus of claim 1 Symbol placement is placed through the second fixing portion and the sliding contact structure. The sorting device according to claim 1 or 2, wherein at least one of the first and second fixing portions is structurally integrated with the shaft. Each of the first and second fixing portions is fixed in a state where it is concentrically pressed against the shaft at a position sandwiched between the drive rotating body and the first and second annular rotating bodies. sorting device according one of claims 1 to 3. Sorting device according one of claims 1 to 4 further comprising a mechanism for rotating freely the shaft.   2. The first annular rotator includes a chamfer on a surface facing a surface in contact with the drive rotator, and the second annular rotator includes a chamfer on a surface in contact with the drive rotator. The sorting apparatus of thru | or 5.   The substantial contact radius of the first annular rotator with the drive rotator is set so that the substantial contact radius of the second annular rotator with the drive rotator is small. 7. The sorting apparatus according to claim 1, wherein the difference between the rotational speed of the second annular rotating body and the rotational speed of the second annular rotating body is substantially eliminated or substantially reduced.

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