JP5492439B2 - Fluid shelf - Google Patents

Description

  The present invention relates to a fluid shelf for conveying articles, and more particularly to a fluid shelf having a switching shelf for changing the conveyance direction of articles.

  Conventionally, as a fluidized shelf, the direction of inclination can be switched and the switching shelf that can change the conveyance direction of goods between the receiving direction and the discharging direction, the supply shelf that is inclined downward toward the switching shelf, and the discharge from the switching shelf Some have a discharge shelf that is inclined downward toward the side, and a supply mechanism is provided with a stopper mechanism for controlling the conveyance of articles. Such a fluid shelf is used for parts supply in a factory, for example. This is because the parts for product assembly put in the case are transported from the supply shelf to the switching shelf, and the parts are supplied when the case temporarily stops on the switching shelf, and then only the case is transported to the discharge shelf. Is.

  For example, in the fluidized shelf described in Patent Document 1, a stopper mechanism for controlling the flow of articles is provided on the supply shelf, and the stopper mechanism is interlocked with the operation of a sensor rod that slides due to the flow of articles. . The sensor rod is slidably attached to a sliding rod provided above the switching shelf, and is pressed by the article when the article is received from the supply shelf to the switching shelf. When the article presses the sensor rod, the stopper mechanism operates to prevent the article from being conveyed to the switching shelf.

  Moreover, in the fluid shelf described in Patent Document 2, a stopper mechanism for controlling the flow of articles is provided on the supply shelf, and the stopper mechanism is composed of a connecting rod rotatably supported. The rotation of the connecting rod is linked to a linkage cable provided on the connecting rod. One end of the connecting cord is in contact with the connecting rod, and the other end is provided on the article stopper at the lower end of the discharge shelf, so that the article is conveyed from the switching shelf to the carry-out shelf and presses the connecting rope provided on the article stopper. It has become. When the article presses the connecting rope, the connecting rod rotates and the article is not conveyed to the switching shelf.

JP 2007-62888 A (Claim 1, [0014] to [0019]) JP-A-2005-298131 (Claims 1, [0009] to [0011])

  However, in the invention disclosed in Patent Document 1, since the stopper mechanism operates when the article presses the sensor rod, the stopper mechanism operates until the article presses the sensor rod when the switching shelf is in the receiving posture. do not do. Therefore, when the flow of the article on the switching shelf is slow, the next article may pass through the stopper mechanism earlier than the article presses the sensor rod.

  In addition, the invention disclosed in Patent Document 2 moves the article at the lower end of the discharge shelf when the switching shelf is in the discharge posture because the stopper mechanism operates when the article presses the connecting rope at the lower end of the discharge shelf. If this happens, the next article may flow down the supply shelf and fall to the switching shelf.

  This invention is made | formed in view of the situation mentioned above, and aims at providing the fluid shelf which can supply articles | goods one by one to a switching shelf.

In order to solve the above-described problems, the flow shelf according to the present invention includes a switching shelf capable of switching the conveyance direction of an article between an acceptance direction and a discharge direction by switching an inclination angle, and is inclined downward toward the switching shelf. A supply shelf and a discharge shelf inclined downward from the switching shelf toward the discharge direction, wherein the supply shelf is in a stopped state in which articles are not transported and in a released state in which articles are transported A stopper that can be controlled, and an operation mechanism that links the control operation of the stopper with the switching operation of the inclination angle of the switching shelf, and the switching shelf receives the article from one end side in the article conveying direction. And a support portion for discharging the article and supporting the article on the other end side in the conveyance direction of the article, and the operation mechanism shifts between the stop state and the release state of the stopper by the rotational movement of the switching shelf. Is intended to, the pivot shaft of the pivotal movement of the switching shelf, characterized in that provided approximately in the center position between said one end of the switching shelf the other end.

  In the conveyance direction of the article, the receiving direction is a direction from the supply shelf to the switching shelf, and the discharging direction is a direction from the switching shelf to the discharging shelf. The operation mechanism of the stopper is not related to the operation / state of the article (where the article is, etc.), and the stop state and the release state are controlled only by the switching operation of the switching shelf. Therefore, the state of the switching shelf (tilt angle) and the state of the stopper (stopped state, released state) have a certain correspondence.

  According to the present invention, it is possible to provide a fluidized shelf that can supply articles one by one from a supply shelf to a switching shelf with a simple configuration.

It is a front view which shows the structural example of a fluid shelf. It is a top view which shows the structural example of a fluid shelf. It is a right view which shows the structural example of a fluid shelf. It is a right view which shows the structural example of the stopper member of a fluid shelf. It is a schematic diagram which shows the conveyance state of the articles | goods by a fluid shelf. It is a schematic diagram which shows the conveyance state of the articles | goods by a fluid shelf. It is a schematic diagram which shows the conveyance state of the articles | goods by a fluid shelf.

  The best mode for carrying out the present invention will be described below with reference to the drawings. For the sake of convenience, the same reference numerals are given to the portions having the same operational effects, and the description thereof is omitted.

  1 is a front view of a fluidized shelf, FIG. 2 is a plan view thereof, and FIG. 3 is a right side view thereof. The flow shelf 1 can be switched in the direction of inclination, and can be switched to a switching shelf 20 that can change the conveyance direction of an article 10 (for example, an assembly part or the like in a conveyance case) between a receiving direction and a discharging direction. A supply shelf 40 that inclines downward toward the shelf 20 and a discharge shelf 60 that inclines downward from the switching shelf 20 toward the discharge side include, for example, a column 3 (3a to 3d) made of a pipe member and the column. It is configured to be supported by a support frame 8 including the beams 5 (5a to 5f) to be connected.

  The switching shelf 20 includes a bottom portion 21 formed by connecting pipe members in a rectangular shape, a support portion 23 made of a pipe member for supporting the article 10 in the receiving direction of the article 10, and the article 10 in a direction transverse to the conveying direction. It is composed of a lateral guide portion 25 provided so as not to slip. The lateral guide portion 25 has an L shape composed of two pipe members, and one end is connected to the support portion 23 and the other end is connected to the bottom portion 21. The bottom portion 21 is provided with roller portions 27 (27a, 27b, 27c) at the center and both sides along the conveyance direction, so that the article 10 is easily conveyed when the switching shelf 20 is inclined. Further, the support portion 23 is provided with a cushioning material 23a for relaxing the impact of the article 10 when the article 10 is received. This is done, for example, by putting a sponge cover or the like over the pipe member constituting the support portion 23. The lateral guide portion 25 is provided so as to become gradually narrower in the receiving direction (support portion side), and conversely, the supply shelf 40 side is wider than the width of the roller portion 27. For this reason, even when the article 10 is shaken when the article 10 is received, it is easily conveyed to the inside of the lateral guide portion 25.

  A rotation shaft 29 is provided at a substantially intermediate position in the transport direction of the bottom portion 21 in a direction orthogonal to the transport direction, and the rotation shaft 29 is rotatably supported with respect to the beam 5a of the support frame 8. . The rotation range of the switching shelf 20 is regulated by regulating members 7 a and 7 b provided on the support frame 8. When the discharge direction side rotates upward, the rotation is restricted by the restriction member 7a when the end on the discharge direction side becomes substantially the same height as the downstream end of the supply shelf 40. In this state (acceptance posture), the article 10 is conveyed from the supply shelf 40 to the switching shelf 20. When the discharge direction side rotates downward, the rotation is restricted by the restriction member 7b when the end on the discharge direction side becomes substantially the same height as the upstream end of the discharge shelf 60. In this state (discharge posture), the article 10 is conveyed from the switching shelf 20 to the discharge shelf 60.

  On the bottom 21 of the switching shelf 20, two operating rods 31, 31 that are protruded downward at a position closer to the receiving direction than the rotation shaft 29 are fixed to the left and right. The end of the shaft member 32 is rotatably supported at the ends of the operating rods 31, 31, and the tip of the rod 34 of the air cylinder 35 is rotatably supported at an intermediate position of the shaft member 32. Has been. Note that the lower end portion of the air cylinder 35 is rotatably supported by the support frame. In the air cylinder 35, for example, when an operator operates the foot switch 36, the rod 34 expands, and when the operator operates the foot cylinder 36, the rod 34 contracts. The switching shelf 20 is in the receiving posture with the rod 34 of the air cylinder 35 contracted. However, when the rod 34 of the air cylinder 35 is extended, the shaft member 32 and the operating rod 31 are pushed up by the rod 34 to discharge the switching shelf 20. Switch to. At this time, since the shaft member 32 draws an arc-shaped trajectory around the rotation shaft 29, the air cylinder 35 rotates about the lower end portion as a fulcrum.

  The supply shelf 40 includes roller portions 47 (47a, 47b, 47c) provided at the center and both ends along the transport direction with the switching shelf 20 side as the downstream. The roller portions 47a and 47c at both ends are provided with guides 48a and 48c for preventing the article 10 from moving during conveyance. The supply shelf 40 is fixed to the support frame 8 at an inclination angle of, for example, about 5 degrees on the downstream side.

  The discharge shelf 60 is configured by roller portions 67 (67a, 67b, 67c) provided at the center and both ends along the transport direction with the switching shelf 20 side as the upstream. The roller portions 67a and 67c at both ends are provided with guides 68a and 68c for preventing the article 10 from moving during conveyance. The discharge shelf 60 is fixed to the support frame 8 at an inclination angle of, for example, about 10 degrees on the downstream side. As described above, since the inclination angle of the discharge shelf 60 is larger than the inclination angle of the supply shelf 40, a reliable supply operation of the article 10 and a quick discharge operation can be performed.

  As shown in FIGS. 3 and 4, the supply shelf 40 is provided with a stopper member 100 for restricting the flow (conveyance) of the article 10. The stopper member 100 includes a first locking piece 110 that restricts the flow of the article 10 on the downstream side of the supply shelf 40 and a second engagement that restricts the flow of the article 10 on the upstream side of the first locking piece 110. A stop piece 120 is provided. The first locking piece 110 and the second locking piece 120 are provided on the left and right sides of the central roller portion 47b. When the locking pieces (110, 120) protrude above the roller portion 47, the article 10 is locked and the conveyance is restricted (stopped). On the other hand, when the locking pieces (110, 120) are positioned below the roller portion 47, the article 10 and the locking pieces (110, 120) do not come into contact with each other, and the conveyance of the article 10 is restricted. There is nothing to do. Hereinafter, the state in which the locking pieces (110, 120) protrude above the roller portion 47 is referred to as “stop state”, and the state in which the locking portions (110, 120) are below the roller portion 47 is referred to as “release state”. To do.

  The first locking piece 110 and the second locking piece 120 are connected by a pipe-like connecting portion 115. A rotation shaft 130 is fixed substantially at the center of the connecting portion 115, and the rotation shaft 130 is rotatably supported with respect to the beam 5 g of the support frame 8. In the embodiment, the first locking piece 110 is provided at a substantially right angle with respect to the connecting portion 115, the second locking piece 120 is provided at an obtuse angle, and the second locking piece 120 is provided at the first engagement. It is longer than the stop piece 110. As a result, the tip end portion 110 a of the first locking piece 110 is closer to the rotating shaft 130 than the tip end portion 120 a of the second locking piece 120. Moreover, the front-end | tip part of the 1st locking piece 110 is a position away from the center axis 115a of the connection part 115 from the front-end | tip part of the 2nd locking piece 120 (refer FIG. 4).

  The stopper member 100 operates in conjunction with the operation of the switching shelf 20. Hereinafter, the operation mechanism will be described in detail. A connecting rod 39 is fixed to a rotating shaft 29 provided on the bottom 21 of the switching shelf 20, and the connecting rod 39 extends downward from the rotating shaft 29. As a result, the connecting rod 39 rotates by the same angle with the rotation shaft 29 as a fulcrum as the switching shelf 20 rotates.

  Further, a connecting rod 139 is fixed to a rotating shaft 130 provided in the connecting portion 115 constituting the stopper member 100, and the connecting rod 139 moves downward from the rotating shaft 130 to the connecting portion 115. In contrast, it extends at a predetermined angle θ. As a result, the connecting rod 139 rotates by the same angle with the rotating shaft 130 as a fulcrum as the connecting portion 115 (stopper member 100) rotates.

  The lower end portion of the connecting rod 39 provided on the switching shelf 20 and the lower end portion of the connecting rod 139 provided on the connecting portion 115 are each loosely attached to the end portion of the interlocking rod 50. According to such a configuration, when the switching shelf 20 rotates from the receiving posture to the discharging posture, the connecting rod 39 rotates according to the rotation of the switching shelf 20, and the connecting rod 39 is rotated by the rotation. Pull the interlocking rod 50 while drawing the circular arc at the lower end of. Thereby, since the interlocking rod 50 rotates the connecting rod 139, the rotating shaft 130 rotates and the connecting portion 115 rotates. As the connecting portion 115 rotates, the leading end portion 110a of the first locking piece 110 provided in the connecting portion 115 protrudes above the roll portion 47 and is in a stopped state. The locking piece 120 is below the roll portion 47 and is released. Note that the positional relationship between the distal end portion 110a of the first locking piece 110 and the distal end portion 120a of the second locking piece 120 and the rotating shaft 130 is such that the first locking piece 110 is in a stopped state. The second locking piece 120 is adjusted so as to be released.

  Further, when the switching shelf 20 is rotated from the discharging posture to the receiving posture, the connecting rod 39 is rotated according to the rotation of the switching shelf 20, and the lower end portion of the connecting rod 39 is circularly arced by the rotation. Press the interlocking rod 50 while drawing. Thereby, since the interlocking rod 50 rotates the connecting rod 139, the rotating shaft 130 rotates and the connecting portion 115 rotates. When the connecting portion 115 is rotated, the tip end portion 110a of the first locking piece 110 provided in the connecting portion 115 becomes lower than the roll portion 47 and is in the released state, and the second state that has been in the released state until then. The leading end portion 120a of the locking piece 120 protrudes above the roll portion 47 and is stopped. Note that the positional relationship between the distal end portion 110a of the first locking piece 110 and the distal end portion 120a of the second locking piece 120 and the rotation shaft 130 is such that the second locking piece 120 is in a stopped state. The first locking piece 110 is adjusted so as to be released.

  As an initial state, as shown in FIG. 5, the switching shelf 20 is in the receiving posture, the article 10 a is placed on the switching shelf 20, and the second locking piece 120 that is in a stopped state on the supply shelf 40 The article transport mechanism will be described by taking as an example a case where the individual articles 10b and 10c are locked.

  First, when the foot switch 36 is operated by the operator, the rod 34 of the air cylinder 35 is extended, and the switching shelf 20 is rotated from the receiving posture to the discharging posture. As a result, the article 10 a placed on the switching shelf 20 is transported to the discharge shelf 60 and supported by the support portion 63 provided downstream of the discharge shelf 60. And the connection part 115 rotates in response to rotation of the switching shelf 20, and the 2nd locking piece 120 transfers to a cancellation | release state from a stop state. With the release of the second locking piece 120, the two articles 10b and 10c are transported on the supply shelf 40. When the second locking piece 120 is released, the first locking piece 110 has already been released. Since the articles 10b and 10c are in the stopped state, the articles 10b and 10c are locked by the first locking pieces 110 and the conveyance is stopped (see FIG. 6). In this state, the second locking piece 120 is located below the article 10b.

  Next, when the foot switch 36 is released by the operator, the rod 34 of the air cylinder 35 contracts, and the switching shelf 20 rotates from the discharging posture to the receiving posture. The connecting portion 115 rotates in conjunction with the rotation of the switching shelf 20, and the second locking piece 120 shifts from the released state to the stopped state. At this time, the bottom of the article 10b is pushed up by the second locking piece 120, and the article 10b is inclined in the transport direction. And since the 1st latching piece 110 transfers to a cancellation | release state from a stop state, the articles | goods 10b are conveyed from the supply shelf 40 to the switching shelf 20. FIG. When the first locking piece 110 is released, the second locking piece 120 has already shifted to the stopped state, so that the article 10c is locked by the second locking piece 120 (see FIG. 7). In this embodiment, regardless of the position of the switching shelf 20, at least one of the first locking piece 110 or the second locking piece 120 is in a stopped state, and both are simultaneously released. There is nothing.

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.
For example, the example in which the pipe member is used for the support frame, the switching shelf, the stopper member, and the like has been described. However, the present invention is not limited to this, and any member may be used as long as the same effect is obtained. Although the example which performs the operation | movement of a switching shelf by an air cylinder was shown, it will not be restricted to this, Other drive devices may be sufficient if a switching shelf can be rotated.

  DESCRIPTION OF SYMBOLS 1 ... Fluid shelf, 3 ... Support | pillar, 5 ... Beam, 7a, 7b ... Restriction member, 8 ... Support frame, 10 (10a-10c) ... Article, 20 ... Switching shelf, 21 ... Bottom part, 23 ... Support part, 25 ... Lateral guide part 27 ... Roller part 29 ... Rotating shaft 31 ... Actuation rod 32 ... Shaft member 34 ... Rod 35 ... Air cylinder 36 ... Foot switch 39 ... Connecting rod 40 ... Supply shelf 47 ... Roller part, 50 ... Interlocking rod, 60 ... Discharge shelf, 67 ... Roller part, 100 ... Stopper member, 110 ... First locking piece, 110a ... Tip part, 115 ... Connecting part, 120 ... Second locking Piece, 120a ... tip, 130 ... rotating shaft, 139 ... connecting rod

Claims (1)

A switching shelf that can switch the conveying direction of the article between the receiving direction and the discharging direction by switching the inclination angle, a supply shelf that is inclined downward toward the switching shelf, and downward from the switching shelf toward the discharging direction A fluid shelf having a discharge shelf inclined to
In the supply shelf, a stopper that can be controlled to a stopped state in which articles are not conveyed and a released state in which articles are conveyed;
An operation mechanism for interlocking the control operation of the stopper with the switching operation of the inclination angle of the switching shelf;
Is provided,
The switching shelf receives and discharges the article from one end side in the article transport direction, and includes a support unit for supporting the article on the other end side in the article transport direction,
The operation mechanism is to shift the stop state and the release state of the stopper by the rotational movement of the switching shelf,
The pivot shaft of the pivotal movement of the switching shelf, flow shelves, characterized in that provided approximately in the center position between the one end side of the switching shelf and the other end side.

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