JP2016210527A - Sorting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the problem that in a device with a rotating body for switching a conveyor, long service-life and stable operation in high-speed conveyance is desired, but it is difficult to achieve stable rotating operation because unreasonable force is applied when driving a plurality of rotating bodies simultaneously and therefore large force is required or the like.MEANS FOR SOLVING THE PROBLEM: The sorting device is configured so as to regularly give stable force to a rotating body, and allows the maximum protrusion amounts of an annular rotating body to increase and protrusion amounts to be controlled depending on objects to be conveyed without applying unreasonable force, by using an elastic body and a configuration of a rotating shaft, so as to perform stable rotation operation and perform sure conveyance.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a sorting conveyor switching device, and more particularly to a sorting device having a structure for obtaining stable rotation in a device that sorts by a rotating body when an article is conveyed at high speed.

  In the field of physical distribution, there are cases where articles with various shapes (outer shapes and sizes) are mixed and sorted, and there is a strong demand for high-speed transport to improve their work efficiency. For example, several years In the past, the conveyor speed, which was transported at about 40 m / min to 60 m / min, has recently become about 90 m / min to 100 m / min, and is expected to be further increased in the future.

  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 rotational driving body corresponding to the inclination propagates rotational force to the rotating disk. It is disclosed.

  Specifically, as a structure in which the rotating disk rotates, a method of rotating and driving in a state in which an annular rotating body having the same inclination angle as that of the rotating driving body is pressed is mentioned as one method.

Japanese Patent Laid-Open No. 4-115820 Japanese Utility Model Publication No. 5-26921

  However, in the conventional structure, only the basic conceptual structure is touched, and the outer shape of the annular rotating body has a rectangular cross section, and only a simple disk with an integrated structure is drawn. Therefore, it is impossible to find a condition regarding an efficient method of propagating rotational force by pressure contact driving.

  That is, when a rotary drive body having an inclination angle comes into pressure contact with an annular rotary body and propagates a rotational force, it is efficient and sufficient from the relationship between the strength of the constituent members, the friction coefficient of the material, and the magnitude of the inclination angle. I cannot find a specific method for propagation of rotational force.

  Furthermore, no effective technique has been found for carrying out reliable conveyance in which the outer shape of the annular rotating body protrudes greatly from the surface of a conveyor such as a belt conveyor.

  In the present invention, in order to obtain an efficient structural condition for the above unsolved parts, the optimum inclination angle of the rotary drive body and the annular rotary body, the condition for improving the frictional force, and the friction between the conveyance object and the annular rotary body The problem was to materialize the structural conditions for reliable transport using force.

  In order to solve such a problem, the present invention relates to the relationship between the positional dimensions of the components, the material of the sliding portion of the rotary drive body and the annular rotary body, and the object transport object for improving the rotational force transmission effect. The shape and material of the annular rotator for enhancing the conveying effect, and the structure and configuration for securing the dimensional margin in the height direction from the conveyor surface of the annular rotator were embodied.

  In the present invention, the inclination angle at which the rotary drive body and the annular rotary body are slidably contacted is set in an area centered at 35 degrees, so that the gap space of the conveyor means can be effectively used and the height margin from the conveyor surface can be obtained. It is possible to secure sufficient frictional force by applying engineering plastics having both structural strength and friction coefficient to the sliding contact area.

  Furthermore, by shifting the position of the rotation center axis from the center of the annular rotating body thickness via a bearing or the like that allows free rotation when the inclined disk of the fixed part that holds and fixes around the shaft rotates, It is possible to further increase the height margin at which the outer periphery of the annular rotator protrudes from the conveyor surface, thereby enabling efficient conveyance of the sorting device by the rotational drive body having an inclination and the annular rotator. Yes.

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 block diagram which shows the positional relationship of the rotary body of the conveyor belt which concerns on the 1st Embodiment of this invention, and a sorting device. It is a conceptual diagram which shows the press contact location of the rotary drive body and annular rotary body which concerns on the 1st Embodiment of this invention, and shows the state which the rotary drive body and annular rotary body are in contact with the rotating shaft on the point front side. FIG. It is a conceptual diagram which shows the press contact location of the rotary drive body and annular rotary body which concerns on the 1st Embodiment of this invention, and is a figure which shows the state rotated 90 degree | times from the state of FIG. 3A to one side. It is a conceptual diagram which shows the pressing contact location of the rotary drive body and annular rotary body which concerns on the 1st Embodiment of this invention, and is the state rotated further 90 degree | times from the state of FIG. 3B, or the state of FIG. 3A. It is a figure which shows the state rotated 180 degree | times. It is a conceptual diagram which shows the press contact location of the rotational drive body and annular rotary body which concerns on the 1st Embodiment of this invention, and is the state rotated further 90 degree | times from the state of FIG. 3C in the same direction, or the state of FIG. 3A. It is a figure which shows the state rotated by 270 degree | times. It is a figure of the condition which rotates the fixing | fixed part which concerns on the 1st Embodiment of this invention, and is the figure which looked down at the state of the said FIG. 3A from right above. It is a figure of the condition which rotates the fixing | fixed part which concerns on the 1st Embodiment of this invention, and is the figure which looked down at the state of the said FIG. 3B from right above. It is a figure of the condition which rotates the fixing | fixed part which concerns on the 1st Embodiment of this invention, and is the figure which looked down at the state of the said FIG. 3C from right above. It is a figure of the condition which rotates the fixing | fixed part which concerns on the 1st Embodiment of this invention, and is the figure which looked down at the state of the said FIG. 3D from right above. 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 the 1st Embodiment of this invention. It is a block diagram which shows the pressing force relationship in the rotary body of the sorting part which concerns on the 1st Embodiment of this invention. It is sectional drawing which shows the shape of the cyclic | annular rotary body which concerns on the 1st Embodiment of this invention. It is sectional drawing which shows the shape of the cyclic | annular rotary body which concerns on the 1st Embodiment of this invention. It is sectional drawing which shows the shape of the cyclic | annular rotary body which concerns on the 1st Embodiment of this invention. It is sectional drawing which shows the shape of the cyclic | annular rotary body which concerns on the 1st Embodiment of this invention. It is sectional drawing which shows the rotation center axis | shaft of the cyclic | annular rotary body which concerns on the 1st Embodiment of this invention, and is sectional drawing which shows the position of a fixing | fixed part and a cyclic | annular rotary body. It is sectional drawing which shows the rotation center axis | shaft of the cyclic | annular rotary body which concerns on the 1st Embodiment of this invention, and is a conceptual diagram which shows the largest outer-diameter value at the time of a rotary body rotating. It is another sectional view showing the rotation center axis of the annular rotator according to the first embodiment of the present invention, and is a sectional view showing the positions of the fixed part and the annular rotator. It is another sectional view which shows the rotation center axis | shaft of the cyclic | annular rotary body which concerns on the 1st Embodiment of this invention, and is a conceptual diagram which shows the maximum outer diameter value at the time of a rotary body rotating. It is a schematic diagram of the axis | shaft unit and rotary body unit with which the rotary body which concerns on the 1st Embodiment of this invention was assembled.

  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 is a schematic plan view of a main part showing a straight traveling direction (A) and a sorting direction to the left and right, that is, B or C, in a conveying apparatus to which a sorting apparatus according to the present invention is applied.

FIG. 2 is a diagram showing the positional relationship between the conveyor unit 6 and the sorting device, particularly the rotating body 1 according to the embodiment of the present invention. 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 4, 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. Its height is indicated as (L ₁ region as the width) of the region D ₂ which projects from the height position of the conveyor unit 6 for conveying the effective area. Incidentally, the effective area is relative to the thickness D ₁ of the conveyor unit 6, the gap L between the conveyors, the maximum value D ₃ where the annular rotator 11 is buried from the surface position of the conveyor unit 6, and the outer diameter of the drive rotator 4. It is determined by such margin gap D ₄ between the bottom surface of the conveyor unit 6.

  Since the amount protruding from the surface of the conveyor 6 can be gradually changed by the rotation of the fixed shaft 3 (details are shown in FIGS. 3A to 3D and FIGS. 4A to 4D), Accordingly, 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.

3A to 3D show pressing contact portions of the rotary drive body and the annular rotary body according to an embodiment of the present invention, and the rotary drive body and the annular rotary body are pressed by E ₁₁ and E ₁₂ at the position shown in FIG. 3A. In the figure of the annular rotator 11, it is shown that the force P ₁ is applied to the shaded portion.

Further, in the state of FIG. 3B is rotated 90 degrees to one from the state in FIG. 3A, the power of P ₂ is consuming in the position shown, while the further state rotated 90 degrees in the same direction or state of FIG. 3A, to the state of FIG. 3C rotated 180 degrees, the force P ₃ at the position shown is consuming, further state rotated 90 degrees in the same direction, or FIG. 3D is rotated 270 degrees to one from the state of FIG. 3A in the state indicates that the force P ₄ in the position shown it takes.

  FIGS. 4A to 4D show a fixing portion according to an embodiment of the present invention, and are views showing only the fixing portion as seen from directly above the states of FIGS. 3A to 3D, and are attached integrally with the shaft 2. The state of the inclined disk 32 which inclines the fixing | fixed part 3 with rotation of the shaft 2 is shown, and a conveyance target object is conveyed by rotation of the cyclic | annular rotary body which is not shown in figure. In the state of FIG. 4A, 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 FIG. 4B in which the fixing portion is rotated by 90 degrees, as shown in FIG. When the maximum outer shape portion is lower than the height position of the conveyor or at the same surface position, it proceeds in the straight direction (A direction in FIG. 1), and in the state of FIG. In the state shown in FIG. 4D, which is moved in the direction (C) in FIG. 1 and the fixing portion is further rotated 90 degrees, the maximum outer shape portion of the annular rotating body is lower than the height position of the conveyor as in the state shown in FIG. 4B. Or in the same surface position, it indicates that the vehicle travels in the straight direction (A direction in FIG. 1). The arrows shown in FIGS. 4A to 4D are 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 are not in contact with the object to be conveyed on the illustrated surface. Shows the transport direction when is in this state.

  In the rotation of the fixing portion 3, the shaft 4 integrated with the fixing portion 3 is rotated to a desired angle by a pulley or rack and pinion method, or a rotation control method with a built-in motor is applied.

  FIG. 5 is a diagram showing a concept of a state in which the annular rotator 11 is attached to the outer periphery of the fixed portion 3 according to an embodiment of the present invention, and shows an attached state of the annular rotator 11 by broken lines around the fixed portion 3. .

FIG. 6 is a view showing an example of means for maintaining the pressure contact state in the rotating body 1 of the sorting unit according to the embodiment of the present invention. The position in the state of FIG. 4A is shown, and the rotary driving body 4 and the fixing unit 3 are shown. A fixed opposing pressing force E ₁₁ , E ₁₂ is applied between the fixed portion 3 and the annular rotator 11, and the annular rotator 11 located on the outer peripheral portion in an integrated structure through a sliding contact mechanism such as a bearing 81. Only can rotate freely. Although the number of arrows E ₁₁ and E ₁₂ in FIG different, which was schematically by abutting structure, as the force is the same value that the relationship of action and reaction.

That is, the rotational drive body 4 and the annular rotator 11 receive the pressing forces E ₁₁ and E ₁₂ at the inclined portion, and the rotation of the rotational drive body 4 is constituted by the pressing force to the annular rotator 11 and both pressure contact portions. Since the friction coefficient propagates as a rotational force due to the friction coefficient of the elastic bodies 71 and 72, the friction coefficient increases due to the friction force due to the friction coefficient of the elastic body itself and the resistance force obtained by the shape deformed by the pressing force. is there.

  7A to 7D are diagrams showing examples of the shape and structure of the annular rotating body 11 according to an embodiment of the present invention. For example, a structure made of metal or engineering plastic, and a rotation of a bearing or the like not shown in the inner diameter portion thereof. The material rotates freely through a sliding structure, and the material can be synthetic rubber, wood, ceramics, etc., and is not limited to the above example.

  The region where the annular rotator 11 is in pressure contact with the rotary drive body 4 and the maximum outer diameter portion region of the annular rotator are made of engineering plastic such as polyacetal resin or polyurethane resin, and the outer shape thereof is flat or curved. The region in contact with the sliding surface and the object to be conveyed can be subjected to a large chamfering process regardless of the metal or resin material.

Here, the thickness (t ₂ ) of the fixed structure portion of the sliding contact mechanism that protrudes from the inner diameter portion (d ₂ ) to the inner diameter side with respect to the outer diameter (d ₁ ) of the annular rotating body 11 should be as small as possible. Thus, it is possible to obtain a large moment of inertia during the rotation of the annular rotator 11, and a smooth rotation can be obtained.

Further, the surface 12 that is in sliding contact with the rotary drive body is configured by an elastic body 71 in the region that is in contact with the rotary drive body, and the surface that is in contact with the conveyed article has a step (t ₃ ) as shown in FIGS. 7A and 7B. It is preferable to ensure.

  For example, an example in which the region corresponding to the sliding surface 12 of the annular rotating body 11 and the outermost peripheral surface 13 in contact with the object to be transported is made of an elastic body made of the engineering plastic and a rigid material such as metal is used. 7A in which the portion that does not contact the object to be conveyed is chamfered, FIG. 7B in which the whole is chamfered, and FIG. 7C in which the entire surface is rounded. The figure is shown.

FIG. 8A is a diagram showing a rotation center axis of the annular rotator 11 according to the first embodiment of the present invention. As shown in FIGS. 3A to 3D and FIGS. 4A to 4D, positions where the rotary drive body 4 is contacted are shown. The case where the rotation center position O ₁ of the fixed portion 3 to be replaced is located at a substantially central portion (t ₄ ) of the thickness (t ₁ ) of the annular rotator 11 is shown. when the diagonal straight line R ₁ shown in FIG. 8B shown in has reached the vertical position direction, the maximum protruding amount in this device.

On the other hand, FIG. 9A shows a case where the rotation center position O ₂ is at a position (t ₅ ) deviated to one side from the center surface of the thickness (t ₁ ) of the annular rotator 11. diagonal straight R ₂ shown in FIG. 9B schematically showing is when it reaches the vertical position direction, will get the maximum protruding amount in the apparatus, said the R _1, the R 1 _{<R 2} relationship become.

That is, when it is necessary to increase the amount of protrusion from the belt surface on the conveyor as much as possible, it is effective to bias the tilt rotation center position O ₂ .

  FIG. 10 is a diagram schematically showing the shaft unit 111 and the rotator unit 110 assembled with the rotator according to the first embodiment of the present invention. As an example, four rotators are provided on one shaft. A shaft unit that is easy to incorporate and remove and a state where the shaft unit is stacked in three stages are depicted.

  Incidentally, a plurality of rotating bodies attached to the shaft unit 111 are basic, but a single unit is also possible, and it is basic that the plurality of shaft units 111 are multi-staged within the rotating body unit 110 as well. Even one is effective.

  The conveying device according to the present invention can be easily attached and detached with a shaft unit in which a plurality of rotating bodies are arranged on one shaft in a situation where it is utilized in all areas of physical distribution at the same time as diversification of physical distribution forms. At the same time, it is possible to obtain an efficient conveying device by selecting the shape and material of the sliding contact portion and the rotation center axis, which has great applicability in various industries to which it is applied.

DESCRIPTION OF SYMBOLS 1 Rotating body 11 Annular rotating body 12 Surface in sliding contact with rotational driving body 13 Surface in contact with article to be conveyed 2 Shaft 3 Fixed portion 31 Fixed shaft fixed to shaft 32 Inclined disk having predetermined inclination 4 Rotating driving body 6 Conveyor Part 7 Elastic body (synthetic resin)
71 An elastic body fixed to the annular rotating body and slidably contacting the rotational driving body 72 An elastic body fixed to the rotational driving body and circumferentially contacting the annular rotating body 8 A sliding mechanism 81 The sliding portion can be slidably contacted with the fixed portion. Bearing structure 82 Bearing structure that enables sliding contact between the shaft and the rotary drive body 100 Sorting unit of the transport device 110 Rotating body unit 111 Axis unit 200 Article to be transported A, B, C Transport direction D Positional relationship between conveyor and rotating body D ₁ Thickness of the conveyor D ₂ Maximum amount of the annular rotating body protruding from the conveyor surface D ₃ Maximum amount of the annular rotating body buried from the conveyor surface D ₄ Margin gap between the rotating drive body and the conveyor bottom surface E Rotation force E ₁₁ maximum outer shape portion of the gap length L ₁ rotator between force L conveyor which presses the force E ₁₂ rotary drive member for pressing the fixing part U for generating a force Area O ₁ projecting from the bare surface, _{O 2} rotation center P ₁ of the rotating body with respect to the shaft, _P 2, _{P 3} contacts portion between the rotary drive member and the annular rotary body which is in pressure contact R _{1, R 2} rotating body relative to the shaft The length from the rotation center to the maximum outer shape portion d ₁ The outer diameter of the annular rotating body d ₂ The inner diameter of the annular rotating body t ₁ The thickness of the annular rotating body t ₂ The thickness of the portion holding the sliding contact mechanism portion in the annular rotating body T ₃ Step difference between the outer diameter portion of the annular rotator and the maximum outer shape of the elastic material t ₄ , t ₅ Position of the rotation center axis of the rotator in the thickness direction in the annular rotator θ Angle of the annular rotator relative to the shaft

Claims (8)

  The fixing portion having an inclined disk having an inclination angle of about 35 degrees with an axis fixed to a shaft substantially orthogonal to a conveyance direction in which a conveyance object is placed and conveyed on a conveyance path surface by a rotation drive mechanism, An annular rotator that is rotatably arranged around the inclined disk at the same angle and has an outer peripheral surface that is slidably contacted with the bottom of the object to be transported. A rotation driving body that contacts the side surface in the vicinity of the outer periphery at the predetermined angle, the sorting direction can be arbitrarily selected by arbitrarily rotating a shaft integrated with the fixed portion, and the driving rotation body and the The fixed portion is held in a pressure contact state by a pressure contact state maintaining means, so that the rotary drive body and the annular rotary body have a structure in which a smooth rotation state is always maintained in a constant pressure contact state on the concentricity of the shaft. This Sorting device according to claim.   The sorting device according to claim 1, wherein an outer peripheral portion of the annular rotating body that is in contact with an object to be conveyed is formed of an elastic body.   The sorting device according to claim 1 and 2, wherein an elastic body in contact with the object to be conveyed is the maximum outer diameter portion of the annular rotator.   The sorting apparatus according to claim 1, wherein at least one of the regions where the rotary drive body and the annular rotary body are pressed against each other is covered with an elastic body.   The sorting apparatus according to claim 1, wherein a corner chamfering or an R chamfering is provided except for the sliding surface of the outer peripheral portion of the annular rotating body.   The inclination angle of the annular rotating body and the inclination angle of the surface of the rotary driving body in contact with the annular rotating body are in the range of 20 degrees to 45 degrees, more preferably 30 degrees to 40 degrees, and still more preferably about 35 degrees. The sorting apparatus according to claim 1.   A shaft unit in which one or more sets of a combination of the rotary drive body and the rotary body are combined and installed on a single shaft, and a rotary unit in which the shaft units are combined in one or more stages. Sorting device characterized by comprising.   The sorting apparatus according to claim 7, wherein only a single shaft unit can be attached to and detached from the rotating body unit.

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