JP6585550B2 - Sorting device - Google Patents

Description

  The present invention relates to a distribution device that distributes a conveyed product alternately left and right.

  A sorting device that sorts the transported material that is transported in a row by a conveyor driven for transporting, such as a belt conveyor, a roller conveyor, or a slat conveyor, and switches the transport route of the transported material upstream of the sorting part. It is often necessary in a transfer line that is arranged side by side.

  As an example of a sorting device that sorts bags to be packed in boxes or semi-finished steel products handled by a press machine as transported objects, the mounting surface on which the transported transported objects are placed is arranged at a predetermined phase angle on the outer peripheral surface. The drum formed in the above is rotated by a predetermined phase angle, forward rotation or reverse rotation by driving a motor to incline the mounting surface in either the left or right direction, and the transported object mounted on the mounting surface is Examples include a sorting device, and a device on which a table on which a conveyed product is placed is tilted forward or left and right by a plurality of tilting cylinders that support the table from below (Patent Document 1, Patent Document 2). reference).

Japanese Patent Laid-Open No. 7-40932 JP 2001-1089 A

  In the sorting device disclosed in Patent Document 1, when the drum is rotated forward or backward by a predetermined phase angle, the horizontal placement surface is tilted to the left or right, and at the same time adjacent to the tilted placement surface. Any one of the matching mounting surfaces is in a horizontal state. Accordingly, it is possible to increase the transport speed of the transported object compared to the sorting device that returns the horizontal state after tilting one placement surface in either the left or right direction. However, the sorting device disclosed in Patent Document 1 requires a device such as a sensor for detecting a conveyed product and a motor for rotating the drum forward or backward in accordance with detection of the conveyed product by the sensor. The responsiveness of the sensor that detects the position of whether the mounting surface of the drum once given a rotational speed is horizontal is required to be fast, and not only the motor but also the rotational torque caused by the conveyed object Motors that instantaneously rotate the rotational torque of the drum in the opposite direction are required to have very powerful capabilities and agility control.

  In addition, since the sorting device disclosed in Patent Document 2 can tilt the table on which the transported object transported by the plurality of tilting cylinders is placed forward or left and right, the transporting object 3 It becomes possible to sort in the direction. However, as with the sorting device disclosed in Patent Document 1, the sorting device disclosed in Patent Document 2 drives a sensor that detects a transported object and a tilting cylinder in accordance with the detection of the transported object by the sensor. The structure to be made is necessary. As the transport speed of the transported object increases, the tilting cylinder speed and the operating torque capability are extremely required, and this mechanism cannot immediately increase the transport speed.

  The present invention operates the distribution mechanism by the position head of the conveyed object that has been conveyed first, without using a sensor that detects the conveyed object, a drive mechanism that tilts the mounting surface on which the conveyed object is placed, and the like. It is an object of the present invention to provide a sorting device that can reliably sort a conveyed product.

  In order to solve the above-described problem, the sorting apparatus according to the present invention includes a first state in which one end portion in the width direction of the conveyor body is inclined downward toward the other end portion, and the other end portion is directed toward the one end portion. The distribution conveyor swings around the center in the width direction of the conveyor body in the second state where the conveyor body is inclined downward, and distributes the conveyed product to be conveyed, and the vibration in the conveying direction of the conveyed product. Provided on the upstream side of the distribution conveyor and pressed by a conveyed product conveyed toward the distribution conveyor; and when the pressing member is pressed by the conveyed product, the distribution And a switching mechanism for switching the inclined state of the conveyor.

  In addition, the pressing member is provided on the upstream side of the sorting conveyor in the transport direction of the transported object, and descends in response to the pressing of the transported object transported toward the sorting conveyor. After being delivered to the sorting conveyor, it is an activation conveyor that swings back to its original position by a weight provided at an upstream end in the transport direction of the transported object.

  In this case, it is preferable to have a roller that is rotated by a dynamic frictional force caused by the movement of the conveyed product caused by the position head of the conveyed product at a portion where the conveyed products of the sorting conveyor and the start-up conveyor come into contact with each other.

  In this case, the switching mechanism includes a first cam provided at one end in the width direction of the sorting conveyor, a second cam provided at the other end in the width direction of the sorting conveyor, and the start-up conveyor. And a pair of pressing pins that push down an upper cam of the first cam or the second cam when the starting conveyor is lowered.

  In addition, the pressing member is a start-up conveyor that is provided on the upstream side of the sorting conveyor in the transport direction of the transported object and is a gravity roller conveyor that transports the transported object toward the sorting conveyor. The conveyor further includes a sensing roller that moves between a position protruding from the gravity roller row that is a transfer surface and a position that is pressed by the transfer object and retracts from the transfer surface of the starting conveyor. To do.

  In this case, it is preferable to have a roller that is rotated by a dynamic frictional force caused by the movement of the conveyed product due to the position head of the conveyed product at a portion where the conveyed product of the sorting conveyor comes into contact.

  The switching mechanism includes a first cam provided at one end in the width direction of the sorting conveyor, a second cam provided at the other end in the width direction of the sorting conveyor, and the sensing roller. A pair of pressing pins that push down an upper cam of the first cam or the second cam when pressed by the transported object and retracted from the transport surface of the startup conveyor, the sensing roller, and the pair of It is preferable that it is comprised from the link mechanism which connects a press pin.

  The switching mechanism contacts the other cam that moves upward when one of the first cam and the second cam is pushed down by the pair of pressing pins, and rotates the other cam. It is further provided with a pair of cams.

  In this case, it is preferable that the pair of cams be rotated by one of the first cam and the second cam pushed down by the pair of pressing pins.

  In addition, the first roller conveyor to which the object conveyed by the sorting conveyor that is in the first state is delivered, and the vibration that is arranged in parallel to the first roller conveyor and that is in the second state. A second roller conveyor to which a conveyed product conveyed by the minute conveyor is delivered, and each of the first roller conveyor and the second roller conveyor has an end portion located close to the other roller conveyor arranged in parallel. The carry-out conveyor arranged so as to be inclined is provided on the downstream side of the sorting conveyor in the conveyance direction of the conveyed product.

  In addition, the first roller conveyor to which the object conveyed by the sorting conveyor that is in the first state is delivered, and the vibration that is arranged in parallel to the first roller conveyor and that is in the second state. And a second roller conveyor to which a product conveyed by the minute conveyor is delivered, wherein the first roller conveyor and the second roller conveyor are roller conveyors having a plurality of skew rollers.

  According to the present invention, the distribution mechanism is operated by the position head of the transported object first without using a sensor for detecting the transported object or a drive mechanism for inclining a mounting surface on which the transported object is placed. This makes it possible to reliably distribute the conveyed product.

It is a top view of the sorting apparatus of this invention provided on the conveyance path | route of a conveyed product. It is AA sectional drawing shown in FIG. (A) is a top view of a receiving conveyor part, (b) is a side view when the receiving conveyor part is seen from the downstream in the conveyance direction of a conveyed product. (A) is a top view of a starting conveyor part, (b) is a side view when the starting conveyor part which is an operation | movement state is seen from the upstream in the conveyance direction of a conveyed product. (A) Side view when starting conveyor part is in an inoperative state, (b) is a side view when starting conveyor part is in an operating position. (A) is a top view of a distribution conveyor part, (b) is a side view when the distribution conveyor part is seen from the upstream side in the conveyance direction of a conveyed product. It is a side view when a carry-out conveyor part is seen from the upstream side. It is a figure which shows the motion of a press pin and a cam when the roller conveyor unit of a distribution conveyor part switches from a right inclination state to a left inclination state. It is a figure which shows the motion of a press pin and a cam when the roller conveyor unit of a distribution conveyor part switches from a right inclination state to a left inclination state. It is a figure which shows the motion of a press pin and a cam when the roller conveyor unit of a distribution conveyor part switches from a left inclination state to a right inclination state. It is a figure which shows the motion of a press pin and a cam when the roller conveyor unit of a distribution conveyor part switches from a left inclination state to a right inclination state. It is a modification of the cam provided in the sorting conveyor part. It is a figure which shows the structure of the sorting apparatus in the case of switching the inclination state of a sorting conveyor part with a sensing roller. It is a perspective view which shows the structure of a sensing roller and a link mechanism. (A) The figure which shows the state of a link mechanism when a sensing roller protrudes from a conveyance surface, (b) The figure which shows the state of a link mechanism when a sensing roller retracts | saves from a conveyance surface.

  Hereinafter, the present embodiment will be described with reference to the drawings.

  FIG. 1 is a top view of the sorting apparatus 10, and FIG. 2 is a cross-sectional view taken along line AA in FIG. The sorting apparatus 10 shown in the present embodiment is a conveyor apparatus 12 to 1 that is a conveyor that is disposed on the upstream side of the sorting apparatus 10 and whose transport surface is driven for transport such as a belt conveyor, a roller conveyor, or a slat conveyor. In the conveyor device 13, which is a conveyor whose transport surface is driven for transporting the transported material 15 transported in a row, such as a belt conveyor, a roller conveyor, or a slat conveyor, disposed on the downstream side of the sorting device 10. It is arranged between the conveyor device 12 and the conveyor device 13 in order to be conveyed alternately in a row. Therefore, the width of the conveyor surface of the conveyor device 13 is wider than the width of the conveyor surface of the conveyor device 12, and the width of the conveyor surface of the conveyor device 13 is set to, for example, twice the width of the conveyor surface of the conveyor device 12. Further, when the sorting device 10 of the present embodiment is disposed between the conveyor device 12 and the conveyor device 13, the conveyor device 12 is arranged such that the conveyor surface of the conveyor device 12 is located above the conveyor surface of the conveyor device 13. And a conveyor device 13 are installed.

  Here, the conveyor device 13 located on the downstream side of the sorting device 10 is a conveyor device in which the width of the conveying surface is wider than the width of the conveying surface of the conveyor device 12, but has the width of the conveying surface of the conveyor device 12. It is also possible to arrange two conveyor devices in parallel in the width direction of the conveyor device. The conveyor device 12 and the conveyor device 13 may be belt conveyor devices, roller conveyor devices, or slat conveyor devices.

  The sorting apparatus 10 includes a receiving conveyor unit 21, an activation conveyor unit 22, a sorting conveyor unit 23, and a carry-out conveyor unit 24. Reference numeral 25 denotes a holding table that holds the receiving conveyor unit 21, the starting conveyor unit 22, the sorting conveyor unit 23, and the carry-out conveyor unit 24 on the upper surface. In addition, each conveyor part of the receiving conveyor part 21, the starting conveyor part 22, the distribution conveyor part 23, and the carry-out conveyor part 24 is a height from the holding stand 25 by an adjustment tool including, for example, a cutting bolt (long screw) and a nut. The inclination with respect to the sheath holding table 25 is adjusted. The holding table 25 is held in a state where the upper surface of the holding table 25 is inclined downward by, for example, 15 ° toward the downstream conveyor device 13 with respect to the horizontal plane (xy plane).

  As shown in FIG. 3, the receiving conveyor unit 21 includes roller conveyor units 31 and 32, a fixed plate 33, and a holding frame 34. The roller conveyor units 31 and 32 have, for example, a plurality of rollers whose rotation axes are arranged in the same direction and arranged in a matrix. As shown in FIG. 3A, the roller conveyor units 31 and 32 are arranged along the conveyance direction (x direction in FIG. 3) of the conveyance object 15. The roller conveyor units 31 and 32 are roller conveyor units in which a total of 44 rollers, 4 in the width direction of the unit body (y direction in FIG. 3) and 11 in the conveyance direction of the conveyed product, are arranged in a matrix. . In the present embodiment, two roller conveyor units 31 and 32 are described. However, a total of 88 rollers, four in the direction orthogonal to the transport direction and 22 in the transport direction of the transported object 15. May be a roller conveyor unit arranged in a matrix. Moreover, the roller conveyor unit which arranged 22 rollers in the conveyance direction may be sufficient. That is, the number of rollers arranged in the roller conveyor unit and the arrangement state of each roller are not limited to the above configuration. The rollers arranged in this roller conveyor unit are of a so-called gravity type, and are driven to rotate by the drop friction by the position head of the transported object on the upper surface whose rotational frictional resistance is minimized by a bearing provided on the rotating shaft.

  As shown in FIG. 3B, the roller conveyor units 31 and 32 are fixed to the upper surface of the fixed plate 33. The fixing plate 33 is fixed to the upper part of the holding frame 34 using bolts and nuts. Here, in FIG. 3A, reference numerals 35 and 36 indicate a constant position in the width direction (y direction) of the conveyed product 15 that protrudes from the receiving conveyor unit 21 toward the roller conveyor unit 41 of the activation conveyor unit 22. It is a guide rail for doing so. In addition, about the guide rails 35 and 36, it has shown with the dashed-two dotted line in Fig.3 (a).

  As shown in FIGS. 4 and 5, the activation conveyor unit 22 includes a roller conveyor unit 41, a fixed plate 42, bearing brackets 43 and 44, a support member 45, and a holding frame 46. The roller conveyor unit 41 has the same configuration as the roller conveyor units 31 and 32 provided in the receiving conveyor unit 21. The roller conveyor unit 41 is fixed to the upper surface of the fixed plate 42 and to the downstream end portion in the conveyance direction of the conveyed product 15. Here, the position of the roller conveyor unit 41 is set so that the center of the roller conveyor unit 41 is positioned on the flight locus in the vicinity of the center of the conveyed product 15 that has jumped out of the receiving conveyor unit 21.

  The bearing brackets 43 and 44 are fixed at positions shifted from the center in the longitudinal direction of the fixing plate 42 to the left in FIG. 5B. The bearing brackets 43 and 44 pivotally support the end portion of the shaft member 47 fixed to the holding frame 46 via a bearing (not shown). The fixing plate 42 is provided with a weight 48 on the lower surface of the other end portion in the longitudinal direction of the fixing plate 42.

  As described above, the shaft member 47 pivotally supported by the bearing brackets 43 and 44 is at a position shifted to the left in FIG. 5 from the longitudinal center of the fixed plate 42. A roller conveyor unit 41, a support member 45, and pressing pins 50 and 51 are provided at one end in the longitudinal direction of the fixed plate 42. On the other hand, a weight 48 is provided at the other end of the fixing plate 42 in the longitudinal direction. Here, when the fixed plate 42 is pivotally attached to the holding frame 46, the weight of the weight 48 is the other end where the weight 48 is disposed from the one end where the roller conveyor unit 41 is disposed in the longitudinal direction of the fixed plate 42. The weight is set so as to be balanced in a state where it is inclined downward by 20 ° toward the part. Hereinafter, the state of the fixed plate 42 when the fixed plate 42 is inclined downward by 20 ° with respect to the horizontal plane is referred to as a non-operating state. The fixed plate 42 rotates in the direction B in FIG. 5A when the conveyed product 15 jumping out from the receiving conveyor unit 21 presses the roller conveyor unit 41. When the fixed plate 42 is rotated by 20 °, it comes into contact with a stopper 49 provided below the downstream end of the fixed plate 42, and the rotation in the direction B in FIG. 5A is stopped. Here, the stress acting in the direction C in FIG. 5B on the fixed plate 42 when the fixed plate 42 is in an operating state is based on the biasing force of a winding spring 53 described later and the weight of the weight 48. The resultant stress can be mentioned.

  The support member 45 is fixed to the lower surface of one end portion to which the roller conveyor unit 41 is attached in the longitudinal direction of the fixed plate 42. The support member 45 has, for example, two pieces 45a and 45b extending downward, and the pressing pins 50 and 51 are fixed to the tip portions of the two pieces 45a and 45b, respectively. The pressing pin 50 presses the cam 75 provided in the sorting conveyor unit 23 when the starting conveyor unit 22 switches from the non-operating state to the operating state. Similarly, the pressing pin 51 presses the cam 76 provided in the sorting conveyor unit 23 when the starting conveyor unit 22 switches from the non-operating state to the operating state.

  In the present embodiment, the support member 45 having the two pieces 45a and 45b extending downward will be described as an example, but two support pieces that respectively support the pressing pins 50 and 51 may be used.

  The holding frame 46 is a member obtained by bending both end portions of the plate member in the same direction. The bent portions at both ends are referred to as bent pieces 46a and 46b. Each of the bent pieces 46a and 46b has an opening (not shown), and the shaft member 47 is inserted through each opening. Winding springs 52 and 53 are fixed to the bent pieces 46a and 46b by bolts 54 and 55, respectively. The tip of the winding spring 52 fixed to the bent piece 46 a comes into contact with a pin 56 fixed to the bearing bracket 43 from the downstream side in the transport direction of the transported object 15. The tip of the winding spring 53 fixed to the bent piece 46 b comes into contact with a pin 57 fixed to the bearing bracket 44 from the upstream side in the conveyance direction of the conveyed product 15.

  Here, the winding spring 52 is disposed so as not to generate a stress that presses the pin 56 fixed to the bearing bracket 43 when the activation conveyor portion 22 is in an inoperative state. Similarly, the winding spring 53 is arranged so that stress that presses the pin 57 fixed to the bearing bracket 44 does not occur when the starting conveyor portion 22 is in an inoperative state. The elastic force of the coil spring 52 and the elastic force of the coil spring 53 are preferably set so that the elastic force of the coil spring 53 is smaller than the elastic force of the coil spring 52.

  For example, when the starting conveyor unit 22 is in a non-operating state, when the conveyed product 15 that has jumped out of the receiving conveyor unit 21 presses the roller conveyor unit 41 fixed to the fixed plate 42, the roller conveyor unit 41 of the starting conveyor unit 22 is The balance between the stress applied to the fixed one end and the stress applied to the other end to which the weight 48 is fixed is lost, and the fixing plate 42 rotates in the middle direction of FIG. The winding spring 53 is pressed by the pin 57 in the bearing bracket 44 by the rotation of the fixing plate 42 in the B direction in FIG. Therefore, the winding spring 53 generates a biasing force that presses the pin 57. On the other hand, the winding spring 52 is not pressed by the pin 56 in the bearing bracket 43 when the fixing plate 42 rotates in the direction B in FIG.

  When the transported object 15 has finished passing while the starter conveyor unit 22 is in operation, the fixed plate 42 has a moment based on the weight of the roller conveyor unit 41, the support member 45, the pressing pins 50 and 51, and the weight described above. The stress due to the difference from the moment due to the weight of 48 and the urging force of the winding spring 53 are applied. Therefore, the fixed plate 42 rotates in the direction C in FIG. As a result, the starting conveyor unit 22 returns to the non-operating state.

  For example, when the starting conveyor unit 22 returns to the non-operating state, the fixed plate 42 may not be stopped at the position when the starting conveyor unit 22 is in the non-operating state, and may further rotate. In such a case, the winding spring 52 is pressed by the pin 56 provided on the bearing bracket 43. Therefore, the winding spring 52 generates a biasing force that presses the pin 56. In addition to the urging force of the winding spring 52, the fixed plate 42 includes a moment based on the weight of the roller conveyor unit 41, the support member 45, the pressing pins 50 and 51, and the moment due to the weight of the weight 48 described above. Stress based on the difference is applied. As a result, the fixed plate 42 rotates in the direction B in FIG. 5A, and the starting conveyor unit 22 becomes inoperative.

  Accordingly, the winding spring 53 serves as a means for returning the starting conveyor section 22 switched to the operating position to the non-operating state, and the winding spring 52 holds the starting conveyor section 22 returned to the non-operating state in the non-operating state. As a means for each, it is used.

As shown in FIGS. 6A and 6B, the sorting conveyor unit 23 includes roller conveyor units 60 and 61, a swing frame 62, a holding frame 63, and cam holding frames 64 and 65. Reference numerals 67 and 68 are guide members that prevent the conveyed product 15 that has reached the sorting conveyor unit 23 from deviating. Reference numerals 69 and 70 are stoppers that restrict the rotation of the holding frame 63.
The roller conveyor units 60 and 61 provided in the sorting conveyor unit 23 have the same configuration as the roller conveyor unit 31 provided in the receiving conveyor unit 21.

  The swing frame 62 fixes the two roller conveyor units 60 and 61 in a state where they are arranged along the transport direction of the transported object 15. The swing frame 62 is pivotally attached to the holding frame 63 via a shaft member 71 (see FIG. 2) whose rotation center is the conveyance direction of the conveyed product 15. The swing frame 62 swings between a state where the swing frame 62 is inclined downward to the right side (hereinafter referred to as a right tilt state) and a state where the swing frame 62 is inclined downward to the left side (hereinafter referred to as a left tilt state).

  The swing frame 62 approaching the cam holding frames 64 and 65 has a support plate 72 having two pieces 72a and 72b extending downward. The two pieces 72 a and 72 b of the support plate 72 are pivotally attached with cams 75 and 76 via pins 73 and 74. In the vicinity of the pins 73 and 74, restriction pins 77 and 78 for restricting the rotation amounts of the cams 75 and 76 are provided, respectively. The positions of the cam 75 and the regulation pin 77 provided on the one piece 72 a of the support plate 72 and the positions of the cam 76 and the regulation pin 78 provided on the one piece 72 b of the support plate 72 are in the width direction of the sorting conveyor portion 23. The positional relationship is axisymmetric with respect to the center.

  The cam 75 includes a pressed portion 75a at one end in the longitudinal direction and a contact portion 75b at the other end in the longitudinal direction. The pressed part 75a is pressed by the pressing pin 50 of the starting conveyor part 22 that switches from the non-operating state to the operating state when the swing frame 62 is tilted to the right. The contact portion 75b is in contact with the cam 81 when the swing frame 62 is switched from the right tilt state to the left tilt state. The abutting portion 75b is abutted against the cam 81 when the swing frame 62 that is tilted to the left is switched to the right tilted state, and is pressed by the cam 81 that is abutted. In response to the pressing by the cam 81, the cam 75 rotates in the direction F in FIG. 6B, and the movement path of the pressing pin 50 of the starting conveyor unit 22 that returns to the non-operating state is opened. The cam 75 has a central lower portion in the longitudinal direction cut out in an arc shape. The restriction pin 77 enters the region (recessed portion) 75c cut out in the arc shape. Here, the position of the rotation center in the cam 75 is eccentric from the position of the center of gravity. Therefore, the cam 75 is held in a state where the regulation pin 77 that has entered the recess 75c is in contact with the side surface 75d. Hereinafter, the position of the cam 75 when the restriction pin 77 contacts the side surface 75d of the cam 75 is referred to as an initial position.

  The cam 76 includes a pressed portion 76a at one end in the longitudinal direction and a contact portion 76b at the other end in the longitudinal direction. The pressed portion 76a is pressed by the pressing pin 51 of the starting conveyor portion 22 that switches from the non-operating state to the operating state when the swing frame 62 is tilted to the left. The contact portion 76b contacts the cam 85 and presses the cam 85 when the swing frame 62 switches from the left tilt state to the right tilt state. Further, the abutting portion 76b is brought into contact with the cam 85 and pressed by the cam 85 that is brought into contact with when the swinging frame 62 that is tilted to the right switches to the left tilted state. The cam 76 is rotated in the G direction in FIG. 6B in response to the pressing by the cam 85, and the movement path of the pressing pin 51 of the starting conveyor unit 22 that returns to the non-operating state is opened. The cam 76 has a central lower portion in the longitudinal direction cut out in an arc shape. The restriction pin 78 enters the region (concave portion) 76c cut out in the arc shape. Here, the position of the rotation center of the cam 76 is eccentric from the position of the center of gravity. Therefore, the cam 76 is held in a state where the regulation pin 78 that has entered the recess 76c is in contact with the side surface 76d. Hereinafter, the position of the cam 76 when the restriction pin 78 abuts on the side surface 76d of the cam 76 is referred to as an initial position.

  The cam holding frame 64 is provided with a pin 82 and a guide pin 83 on which a cam 81 is pivotally mounted. In the state where the cam 81 is pivotally attached to the pin 82, the rotation center of the cam 81 and the center of gravity of the cam 81 are eccentric. Therefore, the cam 81 is held in the state shown in FIG. The cam 81 has a guide hole 81a through which the guide pin 83 is inserted. Therefore, the cam 81 rotates between a position where one end of the guide hole 81 a comes into contact with the guide pin 83 and a position where the other end of the guide hole 81 a comes into contact with the guide pin 83.

  The cam holding frame 65 is provided with a pin 86 and a guide pin 87 on which the cam 85 is pivotally mounted. In the state where the cam 85 is pivotally attached to the pin 86, the rotation center of the cam 85 and the center of gravity of the cam 85 are eccentric. Therefore, the cam 85 is held in the state shown in FIG. The cam 85 has a guide hole 85a through which the guide pin 87 is inserted. Therefore, the cam 85 rotates between a position where one end of the guide hole 85 a comes into contact with the guide pin 87 and a position where the other end of the guide hole 85 a comes into contact with the guide pin 87.

  As shown in FIG. 7, the carry-out conveyor unit 24 includes roller conveyor units 90 and 91, inclined plates 92 and 93, and a holding frame 94. The roller conveyor units 90 and 91 have the same configuration as the roller conveyor unit 31 provided in the receiving conveyor unit 21. In the carry-out conveyor unit 24, the two roller conveyor units 90 and 91 are arranged along the width direction of the sorting apparatus 10. The two roller conveyor units 90 and 91 are provided so as to incline downward from the center in the width direction of the carry-out conveyor unit 24 toward the outside.

  The inclined plates 92 and 93 have one end in the width direction pivotally attached to the holding frame 94 and the other end bent upward. The bent portions of the inclined plates 92 and 93 function as guide pieces that prevent the conveyed product 15 reaching the carry-out conveyor unit 24 from deviating from the upper surfaces of the roller conveyor units 90 and 91. Reference numerals 95 and 96 denote stoppers that support the inclined plates 92 and 93 from below. The stoppers 95 and 96 are provided at both ends of the receiving member 97 provided on the holding frame 94, and the inclination angles of the inclined plates 92 and 93 are adjusted by the protruding amount of the stoppers 95 and 96 protruding upward from the receiving member 97. Is done.

  Hereinafter, the sorting device 10 for alternately sorting the transported material 15 transported in one row by the conveyor device 12 disposed on the upstream side into the left and right two rows with respect to the conveyor device 13 disposed on the downstream side. Will be described. Hereinafter, the case where the conveyance of the conveyed product 15 is started when the inclined state of the roller conveyor units 60 and 61 of the distribution conveyor unit 23 constituting the distribution device 10 is the right inclination state will be described. In addition, in the state in which the conveyed product 15 is not conveyed, the starting conveyor part 22 is hold | maintained at a non-operation state. Further, the cams 75 and 76 of the sorting conveyor unit 23 are held at their initial positions.

  The conveyed product 15 conveyed by the conveyor device 12 arranged on the upstream side is transferred from the conveyor device 12 to the sorting device 10. The conveyed product 15 is conveyed on the roller conveyor unit 31 and the roller conveyor unit 32 of the receiving conveyor unit 21 in the order of the roller conveyor unit 31 and the roller conveyor unit 32. Here, the sorting apparatus 10 is disposed so as to be inclined downward by, for example, 15 ° on the downstream side in the transport direction. Moreover, each roller of the roller conveyor units 31 and 32 of the receiving conveyor part 21 rotates for the first time by friction with the lower surface of the conveyed product 15 conveyed. Accordingly, the conveyed product 15 delivered to the roller conveyor unit 31 moves on the roller conveyor units 31 and 32 of the receiving conveyor unit 21 with the speed conveyed by the conveyor device 12 as an initial speed. And the conveyed product 15 conveyed by the roller conveyor unit 32 jumps out from the downstream edge part of the receiving conveyor part 21. FIG.

  The conveyed product 15 that has jumped out from the downstream end of the receiving conveyor unit 21 collides with the roller conveyor unit 41 of the starting conveyor unit 22 that is in an inoperative state while having an acute angle. When the conveyed product 15 collides with the roller conveyor unit 41 of the activation conveyor unit 22, the activation conveyor unit 22 is switched from the inoperative state to the activated state.

  Specifically, when the conveyed product 15 that has jumped out from the downstream end of the receiving conveyor unit 21 collides with the roller conveyor unit 41 of the starting conveyor unit 22 in an inoperative state, the roller conveyor unit 41 in the longitudinal direction of the fixed plate 42 is Stress related to the collided article 15 acts on the fixed end. Therefore, the fixed plate 42 rotates in the B direction in FIG. As shown in FIG. 8A, when the starting conveyor unit 22 is in an inoperative state, the pressing pin 50 of the starting conveyor unit 22 is positioned above the cam 75 and the pressing pin 51 is positioned above the cam 76. ing.

  When the starting conveyor section 22 is switched from the non-operating state to the operating state, the fixing plate 42 of the starting conveyor section 22 and the support member 45 fixed to the fixing plate 42 are shown in FIG. Rotate in the direction. As shown in FIG. 8B, in the process in which the pressing pins 50 and 51 provided on the support member 45 move downward, the pressing pin 50 comes into contact with the cam 75 (when viewed from above, FIG. ) In the plane relation below). Then, the pressing pin 50 presses the cam 75 downward. As described above, the cam 75 is in the initial position. Therefore, even if the pressing pin 50 presses the cam 75, the cam 75 does not rotate. As a result, the support plate 72 and the swing frame 62 on which the cam 75 is pivotally rotated rotate around the shaft member 71 in the H direction in FIG.

  As shown in FIG. 8 (c), when the pressing pin 50 presses the cam 75, the support plate 72 and the swing frame 62 on which the cam 75 is pivoted rotate in the H direction in FIG. The cam 76 fixed to the cam is brought into contact with a cam 85 pivotally attached to the cam holding frame 65. At this time, the cam 85 held by the cam holding frame 65 is prohibited from rotating in the direction opposite to the direction E in FIG. Therefore, the cam 76 abutted on the cam 85 by the rotation of the support plate 72 and the swing frame 62 in the H direction in FIG. 8 rotates in the G direction in FIG. By the rotation of the cam 76, the pressed portion 76a of the cam 76 is retracted from the movement locus of the pressing pin 51. Therefore, the pressing pin 51 does not come into contact with the cam 76 in the process in which the pressing pin 50 pushes down the cam 75.

  The pressing pin 50 presses the cam 75 even when the cam 76 rotates in the G direction in FIG. Therefore, the support plate 72 and the swing frame 62 rotate in the H direction in FIG. As a result, the cam 75 pushed down by the pressing pin 50 comes into contact with the cam 81 that is pivotally attached to the cam holding frame 64. As described above, the cam 75 cannot rotate in the direction opposite to the F direction in FIG. Therefore, the cam 75 pushed down by the pressing pin 50 presses the cam 81 while sliding on the cam 81. As shown in FIG. 8D, the cam 81 rotates in the direction D in FIG. 8 while being in sliding contact with the cam 75 pushed downward.

  When the sliding contact between the cam 75 and the cam 81 pushed down by the pressing pin 50 is released, the pressing of the cam 81 by the cam 75 pushed down by the pressing pin 50 is released. Therefore, the cam 81 returns to the original position.

  The cam 75 is pressed by the pressing pin 50 until the start conveyor 22 is switched to the operating state. Therefore, when the starting conveyor unit 22 is switched to the operating state, the roller conveyor units 60 and 61 in the right tilt state are switched to the left tilt state (see FIG. 9B).

  On the other hand, the conveyed product 15 that has collided with the roller conveyor unit 41 of the start-up conveyor unit 22 is transported on the roller conveyor unit 41 of the start-up conveyor unit 22, and then jumps out of the roller conveyor unit 41 of the start-up conveyor unit 22 and is distributed. It is delivered to the roller conveyor unit 60 of the section 23. The conveyed product 15 is conveyed on the roller conveyor unit 60 and the roller conveyor unit 61 of the sorting conveyor unit 23. Thereafter, the conveyed product 15 is transferred from the roller conveyor unit 61 of the sorting conveyor unit 23 to the roller conveyor unit 90 of the unloading conveyor unit 24. Finally, the conveyed product 15 is delivered from the roller conveyor unit 90 of the carry-out conveyor unit 24 to the conveyor device 13 on the downstream side. Therefore, in a state where the conveyed product 15 is delivered to the downstream conveyor device 13, the conveyed product 15 is conveyed on the conveyor device 13 at a position shifted to the left from the center in the width direction of the conveyor device 13.

  In the state where the conveyed product 15 is transferred from the roller conveyor unit 41 of the activation conveyor unit 22 to the roller conveyor unit 60 of the sorting conveyor unit 23, the activation conveyor unit 22 is in an operating state. In addition to the urging force of the winding spring 53, the fixed plate 42 of the starting conveyor unit 22 that is in an operating state has a moment based on its own weight such as the roller conveyor unit 41, the support member 45, and the pressing pins 50 and 51, as described above. The stress by the difference with the moment by the dead weight of the weight 48 is added. Therefore, when the conveyed product 15 is delivered from the roller conveyor unit 41 of the starting conveyor unit 22 to the roller conveyor unit 60 of the sorting conveyor unit 23, the fixed plate 42 rotates in the direction C in FIG. Accordingly, the pressing pins 50 and 51 each move upward. Here, the cam 76 has returned to the initial position. As a result, the pressing pin 51 presses the cam 76 in the process of moving upward. The cam 76 is retreated from the movement locus of the pressing pin 51 while rotating in the G direction in FIG. Thereafter, when the sliding contact with the pressing pin 51 is released, the cam 76 returns to the initial position again (see FIG. 9C).

  Here, it is general that the transported object 15 is transported at regular intervals. Therefore, after the next conveyed product 15 is conveyed on the upstream conveyor device 12, it is delivered from the upstream conveyor device 12 to the receiving conveyor unit 21. The conveyed product 15 conveyed on the roller conveyor unit 31 and the roller conveyor unit 32 of the receiving conveyor unit 21 jumps out of the roller conveyor unit 32 and presses the roller conveyor unit 41 of the starting conveyor unit 22. As a result, the starting conveyor unit 22 switches from the non-operating state to the operating state again.

  When the starting conveyor unit 22 switches from the non-operating state to the operating state again, the roller conveyor units 60 and 61 of the sorting conveyor unit 23 are held in a left-tilt state. Therefore, when the startup conveyor unit 22 in the non-operating state is switched to the operating state, the pressing pin 51 presses the cam 76 among the pressing pins 50 and 51 provided on the support member 45 of the startup conveyor unit 22.

  As shown in FIG. 10A, the pressing pin 51 comes into contact with the cam 76 in the process in which the pressing pin 51 provided on the support member 45 moves downward. The cam 76 is held at the initial position. Therefore, when the pressing pin 51 presses the cam 76, the cam 76 cannot rotate in the direction opposite to the G direction in FIG. As a result, as shown in FIG. 10B, when the pressing pin 51 presses the cam 76, the support plate 72 and the swing frame 62 on which the cam 76 is pivotally mounted are centered on the shaft member 71 in FIG. Rotate in the direction.

  As shown in FIG. 10C, when the pressing pin 51 presses the cam 76, the support plate 72 and the swing frame 62 on which the cam 76 is pivotally rotated rotate in the I direction in FIG. The cam 75 fixed to the cam 81 comes into contact with a cam 81 pivotally attached to the cam holding frame 64. Here, the cam 81 held by the cam holding frame 64 cannot rotate in the direction opposite to the direction D in FIG. Therefore, the cam 75 abutted on the cam 81 by the rotation of the support plate 72 and the swing frame 62 in the I direction in FIG. 10 rotates in the F direction in FIG. The cam 75 is retracted from the movement locus of the pressing pin 50 by the rotation of the cam 75 in the direction F in FIG. Therefore, the pressing pin 50 does not come into contact with the cam 75 in the process in which the pressing pin 51 pushes down the cam 76.

  The support plate 72 and the swing frame 62 are rotated in the direction I in FIG. 10 by the pressing of the cam 76 by the pressing pin 51. As a result, the cam 76 pushed down by the pressing pin 51 comes into contact with the cam 85 pivotally attached to the cam holding frame 65. As described above, the cam 76 cannot rotate in the direction opposite to the G direction in FIG. Therefore, the cam 76 pushed down by the pressing pin 51 presses the cam 85 pivotally attached to the cam holding frame 65. As a result, the cam 85 rotates in the direction E in FIG.

  As shown in FIG. 10D, when the sliding contact between the cam 76 pushed down by the pressing pin 51 and the cam 85 pivotally attached to the cam holding frame 65 is released, the cam 76 pushed down by the pressing pin 51 The pressing of the cam 85 is released. Therefore, the cam 85 pivotally attached to the cam holding frame 65 returns to the original position. Before and after the sliding contact between the cam 76 pushed down by the pressing pin 51 and the cam 85 pivotally attached to the cam holding frame 65 is released, the cam 75 and the cam 81 pivotally attached to the cam holding frame 64 are connected. The sliding contact is also released. Therefore, the cam 75 returns to the initial position.

  The pressing of the cam 76 by the pressing pin 51 is executed until the starting conveyor unit 22 is switched to the operating state. Therefore, when the starting conveyor unit 22 is switched to the operating state, the roller conveyor units 60 and 61 in the right tilt state are switched to the left tilt state (see FIG. 11A).

  On the other hand, the conveyed product 15 that has collided with the roller conveyor unit 41 of the start-up conveyor unit 22 is transported on the roller conveyor unit 41 of the start-up conveyor unit 22, and then jumps out of the roller conveyor unit 41 of the start-up conveyor unit 22 and is distributed. It is delivered to the roller conveyor unit 60 of the section 23. The conveyed product 15 is conveyed on the roller conveyor unit 60 and the roller conveyor unit 61 of the sorting conveyor unit 23. Thereafter, the conveyed product 15 is transferred from the roller conveyor unit 61 of the sorting conveyor unit 23 to the roller conveyor unit 90 of the unloading conveyor unit 24. Finally, the conveyed product 15 is delivered from the roller conveyor unit 90 of the carry-out conveyor unit 24 to the conveyor device 13 on the downstream side. Therefore, in the state where the conveyed product 15 is delivered to the downstream conveyor device 13, the conveyed product 15 is conveyed on the conveyor device 13 at a position shifted to the right side from the center in the width direction of the conveyor device 13.

  In the state where the conveyed product 15 is transferred from the roller conveyor unit 41 of the activation conveyor unit 22 to the roller conveyor unit 60 of the sorting conveyor unit 23, the activation conveyor unit 22 is in an operating state. In addition to the urging force of the winding spring 53, the fixed plate 42 of the starting conveyor unit 22 that is in an operating state has a moment based on its own weight such as the roller conveyor unit 41, the support member 45, and the pressing pins 50 and 51, as described above. The stress by the difference with the moment by the dead weight of the weight 48 is added. Therefore, when the conveyed product 15 is delivered from the roller conveyor unit 41 of the starting conveyor unit 22 to the roller conveyor unit 60 of the sorting conveyor unit 23, the starting conveyor unit 22 is switched from the operating state to the non-operating state.

  When the starting conveyor unit 22 is switched from the operating state to the non-operating state, the fixed plate 42 rotates in the direction C in FIG. Accordingly, the pressing pins 50 and 51 each move upward. Here, the cam 75 has returned to the initial position. As a result, the cam 75 is pressed in the process in which the pressing pin 50 moves upward. The cam 75 rotates in the direction F in FIG. When the pressing of the cam 75 by the pressing pin 50 is released, the cam 75 returns to the initial position (see FIG. 11B).

  Thus, every time the conveyed product 15 is conveyed, the starting conveyor unit 22 is switched from the non-operating state to the operating state, and the inclined states of the roller conveyor units 60 and 61 of the sorting conveyor unit 23 are changed to the right inclined state and the left inclined state. Switch alternately to one of the inclined states. As a result, in the conveyor device 13 located on the downstream side, the conveyed product 15 is conveyed in a state of being alternately arranged in two right and left rows.

  That is, in this embodiment, since the conveyed product 15 is distributed by switching the inclination state of the roller conveyor units 60 and 61 of the distribution conveyor unit 23 by the own weight of the conveyed product 15 to be conveyed, the drive motor is used as the distribution mechanism. Even if it does not use, the conveyed product 15 can be reliably distributed.

  Further, the start conveyor 22 that switches between the non-actuated state and the actuated state as the sorting device 10 receives the transported object 15 that has jumped out of the receiving conveyor 21, so that the rollers of the sorting conveyor 23 Since the inclined state of the conveyor units 60 and 61 is switched, it is possible to reliably distribute the conveyed product 15 without using a detection sensor that detects that the conveyed product 15 has been conveyed to the sorting device 10.

  In the present embodiment, as the sorting device 10, the receiving conveyor unit 21, the starting conveyor unit 22, the sorting conveyor unit 23, and the carry-out conveyor unit 24 are used, but the configuration of the receiving conveyor unit 21 and the carry-out conveyor unit 24 is used. It is good also as a sorting apparatus which does not have.

  In this embodiment, the roller conveyor units 90 and 91 provided in the carry-out conveyor unit 24 have a configuration in which a plurality of rollers whose axial direction is the width direction of the conveyor unit body are arranged in a matrix. It is also possible to use a roller conveyor unit composed of a plurality of skew rollers inclined toward the center in the width direction of the main body.

  In the present embodiment, the cams 75 and 76 of the sorting conveyor unit 23 and the cam holding frame 64 used as a mechanism for switching the tilted state of the roller conveyor units 60 and 61 of the sorting conveyor unit 23 between the right tilted state and the left tilted state. , 65 cams 81, 85 are cams whose rotation axis is the direction of conveyance of the conveyed product, but the cams 75, 76 of the sorting conveyor section 23 and the cams 81, 85 of the cam holding frames 64, 65 are sorting conveyors. It is good also as a cam which uses the width direction of a part as a rotating shaft.

  As shown in FIG. 12, for example, a cam provided in the sorting conveyor unit is a cam 100 having the rotation direction in the width direction of the sorting conveyor unit, and a cam provided in the cam holding frame is cam-mounted on the bracket 102. Consists of. Reference numeral 104 denotes a rotating shaft of the cam 103. The cam 103 pivotally attached to the bracket 102 provided on the cam holding frame can rotate in the S direction in FIG. 12, and is prohibited from rotating in the direction opposite to the S direction in FIG. Therefore, when the cam 100 provided on the sorting conveyor unit descends from above the cam 100 provided on the cam holding frame, the cam 103 provided on the sorting conveyor unit does not rotate, but the cam 100 provided on the cam holding frame. Rotates. On the other hand, when the cam 100 provided on the sorting conveyor unit rises from below the cam 103 provided on the cam holding frame, the cam 103 provided on the cam holding frame does not rotate and is provided on the sorting conveyor unit. The cam 100 rotates. Therefore, when the cam 100 provided in the sorting conveyor unit is lifted, the cam 100 provided in the sorting conveyor unit is rotated in contact with the cam 103 provided in the cam holding frame. The cam can be retracted from the movement locus of the member.

  Although the case where the cam is provided on the cam holding frame is described, a lever or the like can be provided instead of providing the cam on the cam holding frame. Although not shown in the figure, the lever is retracted from the cam trajectory by the cam pressing force when the cam provided on the sorting conveyor portion is lowered, and the lever is camped when the cam provided on the sorting conveyor portion is raised. It is set as the structure which cannot evacuate from on the movement locus | trajectory. Therefore, the cam does not rotate when the cam provided in the sorting conveyor unit is lowered, and the cam rotates when the cam provided in the sorting conveyor unit is raised. Therefore, when the cam provided on the sorting conveyor portion rises, the cam provided on the sorting conveyor portion rotates by being brought into contact with the lever provided on the cam holding frame, so that the pressing member that presses the cam moves. The cam can be retracted from the locus.

  In this embodiment, the tilting state of the roller conveyor unit provided in the sorting conveyor unit is switched between the right-tilting state and the left-tilting state by swinging the starting conveyor unit between the operating state and the non-operating state. Yes. However, it is possible to switch the roller conveyor unit of the sorting conveyor unit between the right-tilting state and the left-tilting state without providing the configuration of the starting conveyor unit.

  As shown in FIG. 13, the sorting device 111 includes an activation conveyor unit 112, a sorting conveyor unit 113, and a carry-out conveyor unit 114. Reference numeral 115 denotes a receiving conveyor unit disposed on the upstream side of the sorting device 111. The receiving conveyor unit 115 disposed on the upstream side of the sorting device 111 is installed such that the transport surface is inclined upward toward the sorting device 111. On the other hand, the roller conveyor unit 116 of the starting conveyor unit 112 is arranged so that the conveyance surface is a horizontal plane. Moreover, the distribution conveyor part 113 is installed so that it may descend and incline toward the downstream side. Moreover, the carry-out conveyor part 114 is arrange | positioned so that the height of an upstream edge part and a downstream edge part may become the same.

  Hereinafter, since the configuration of the sorting conveyor unit 113 and the carry-out conveyor unit 114 is the same as that of the sorting conveyor unit 23 and the carry-out conveyor unit 24 of the present embodiment, the details are omitted. In FIG. 13, a roller conveyor unit using a plurality of skew rollers is illustrated as a roller conveyor unit used in the carry-out conveyor unit 114.

  In the sorting apparatus 111 shown in FIG. 13, sensing rollers 117 and 118 are provided in a part of the roller conveyor unit 116 provided in the starting conveyor unit 112. The sensing roller 117 is provided, for example, in the central portion of the roller conveyor unit 116 in the transport direction. In addition, the sensing roller 118 is provided at the downstream end of the roller conveyor unit 116 in the transport direction. The sensing rollers 117 and 118 constitute a part of a switching mechanism that switches the inclined state of the roller conveyor unit 119 of the sorting conveyor unit 113 between a right-tilting state and a left-tilting state.

  As shown in FIG. 14, the switching mechanism 120 provided in the starting conveyor unit 112 includes rotating shafts 125, 126, 127, pressing members 128, 129, and weights 130 in addition to the sensing rollers 117, 118. In addition, although illustration is abbreviate | omitted, the rotating shafts 125, 126, and 127 are each attached to the base of the roller conveyor unit 116, and the rotating shafts 125, 126, and 127 can rotate separately.

  The sensing roller 117 is fixed to the rotating shaft 125 via support plates 135 and 136 attached to both ends in the longitudinal direction. Therefore, the sensing roller 117 rotates about the rotation shaft 125.

  Similarly, the sensing roller 118 is fixed to the rotating shaft 126 via support plates 137 and 138 attached to both ends in the longitudinal direction. Therefore, the sensing roller 118 rotates about the rotation shaft 126.

  The rotation shaft 125 fixes the first link 140 at the center in the axial direction. The first link 140 is connected to the second link 141 at a node 142. Further, the rotation shaft 126 fixes the third link 145 at the central portion in the axial direction. The third link 145 is connected to the fourth link 146 at a node 147. Further, the rotation shaft 127 is a central portion in the axial direction, and the fifth link 150 is fixed thereto. The fifth link 150 is connected to the second link 141 at the node 151 and connected to the fourth link 146 at the node 152.

  The rotating shaft 127 fixes the pressing members 128 and 129 to both ends. Further, the sixth link 153 is fixed to the rotating shaft 127 in the vicinity where the fifth link 150 is fixed. The sixth link 153 is connected to the weight 130 at the node 154. The weight 130 is provided to urge the rotating shaft 127 in the U2 direction in FIG.

  The rotary shafts 125, 126, 127, the support plates 135, 136, 137, 138, the first link 140, the second link 141, the third link 145, the fourth link 146, and the fifth link 150 constitute a link mechanism. The

  Next, operation | movement of the switching mechanism when a conveyed product is conveyed is demonstrated using FIG. Hereinafter, the transported object will be described with reference numeral 160. As the conveyed product 160, for example, a corrugated cardboard or a rice bag in which an article is included is cited.

  As shown in FIG. 15A, the sensing rollers 117 and 118 are held in a state of protruding from the conveyance surface 116 a of the roller conveyor unit 116 when the conveyed product 160 is not conveyed. When the conveyed product 160 is transferred from the receiving conveyor unit 115 disposed on the upstream side to the roller conveyor unit 116 of the start-up conveyor unit 112, the conveyed product 160 is a roller having the conveying speed conveyed by the receiving conveyor unit 115 as an initial speed. The conveyance surface 116a of the conveyor unit 116 is conveyed. When the transported object 160 transported on the transport surface 116a of the roller conveyor unit 116 presses the sensing roller 117, the sensing roller 117 rotates in the direction T1 in FIG. 15 (a) and retracts from the transport surface 116a of the roller conveyor unit 116. As the sensing roller 117 rotates in the T1 direction in FIG. 15A, the rotation shaft 125 also rotates in the T1 direction. Accordingly, the first link 140 fixed to the rotating shaft 125 also rotates in the T1 direction in FIG. As a result, the second link 141 connected to the first link 140 is pulled toward the first link 140 side.

  Since the second link 141 is connected to the fifth link 150, when the second link 141 is pulled toward the first link 140, the fifth link 150 together with the rotating shaft 127 moves in the U1 direction in FIG. Rotate. Since the fifth link 150 is connected to the fourth link 146, when the fifth link 150 rotates in the U1 direction in FIG. 15A, the fourth link 146 is pulled toward the fifth link 150 side. When the fourth link 146 is pulled toward the fifth link 150, the third link 145 rotates in the direction V1 in FIG. Due to the rotation of the rotating shaft 126 in the direction V1 in FIG. 15A, the sensing roller 118 to which the support plates 137 and 138 are fixed also rotates in the direction V1 in FIG. As a result, when the sensing roller 117 is retracted from the transport surface 116 a of the roller conveyor unit 116, the sensing roller 118 is also retracted from the transport surface 116 a of the roller conveyor unit 116.

  On the other hand, when the rotation shaft 127 rotates in the direction U1 in FIG. 15A due to the rotation of the sensing roller 117 in the T1 direction in FIG. 15A, the sixth link 153 fixed to the rotation shaft 127 and the pressing members 128 and 129. Also rotates in the U1 direction in FIG. As a result, the pressing pins 128 a and 129 a provided at the tips of the pressing members 128 and 129 press the cam of the sorting conveyor unit 113. Therefore, the inclined state of the roller conveyor unit 119 of the sorting conveyor unit 113 is switched.

  As described above, when the conveyed product 160 is conveyed on the conveying surface 116 a of the roller conveyor unit 116, the conveyed product 160 presses the sensing roller 117 and then the sensing roller 118. Therefore, the sensing roller 117 and the sensing roller 118 are each retracted from the conveying surface 116a of the roller conveyor unit 116.

  Then, when the conveyed product 160 is transferred from the roller conveyor unit 116 to the roller conveyor unit 119 of the sorting conveyor unit 113, the pressing of the sensing roller 118 by the conveyed product 160 is released.

  As described above, the weight 130 urges the rotating shaft 127 in the U2 direction in FIG. However, when the conveyed product 160 presses either the sensing roller 117 or the sensing roller 118, the rotation shaft 121 is prevented from rotating in the U2 direction in FIG. Therefore, when the pressing of the sensing roller 118 by the conveyed product 160 is released, the sixth link 153 rotates in the U2 direction in FIG. Therefore, the rotating shaft 127 and the fifth link 150 are also rotated in the U2 direction in FIG. 15B by the sixth link 153 rotating in the U2 direction in FIG. The fourth link 146 is pushed out to the third link 145 side by the rotation of the fifth link 150 in the U2 direction. Accordingly, the third link 145 connected to the fourth link 146 rotates in the direction V2 in FIG. As a result, the rotating shaft 126 also rotates in the direction V2 in FIG. 15B, and the sensing roller 118 fixed to the support plates 137 and 138 protrudes from the conveying surface 116a of the roller conveyor unit 116.

  Similarly, the second link 141 is drawn to the fifth link 150 side by the rotation of the fifth link 150 in the U2 direction in FIG. Therefore, the first link 140 connected to the second link 141 rotates in the direction T2 in FIG. As a result, the rotating shaft 125 also rotates in the T2 direction in FIG. 15B, and the sensing roller 117 fixed to the support plates 135 and 136 protrudes from the conveying surface 116a of the roller conveyor unit 116. Furthermore, the pressing members 128 and 129 are also rotated in the U2 direction in FIG. 15B by the rotating shaft 127 that rotates in the U2 direction in FIG. 15B, and return to the original positions.

  Also in this case, as in the present embodiment, the inclined state of the roller conveyor unit 119 of the sorting conveyor unit 113 is switched by pressing the conveyed product 160 being conveyed. As a result, the transported object 160 can be reliably sorted without using a drive motor as a sorting mechanism.

  In addition, since the sensing roller that switches between the non-operating state and the operating state is pressed as the sorting device 111, the inclined state of the roller conveyor unit 119 of the sorting conveyor unit 113 is switched, so that the transported object 160 Therefore, the transported object 160 can be surely sorted without using a detection sensor that detects that the paper has been transported to the sorting device 111.

  DESCRIPTION OF SYMBOLS 10,111 ... Sorting apparatus 22, 112 ... Starting conveyor part, 23, 113 ... Sorting conveyor part, 24, 114 ... Unloading conveyor part, 50, 51, 128a, 129a ... Pressing pin, 75, 76, 81, 85 ... cam, 117, 118 ... sensing roller

Claims (11)

The width of the conveyor body between a first state in which one end portion in the width direction of the conveyor body is inclined downward toward the other end portion and a second state in which the other end portion is inclined downward toward the one end portion. A sorting conveyor that oscillates about the center in the direction of rotation and sorts the conveyed object,
A pressing member provided on the upstream side of the sorting conveyor in the transport direction of the transported object and pressed by the transported object transported toward the sorting conveyor;
A sorting apparatus comprising: a switching mechanism that switches an inclined state of the sorting conveyor when the pressing member is pressed by the conveyed product. The sorting apparatus according to claim 1,
The pressing member is provided on the upstream side of the sorting conveyor in the transporting direction of the transported object, and descends in response to the pressing of the transported object transported toward the sorting conveyor, and the transported object is moved to the sorting conveyor. A sorting apparatus, which is a start-up conveyor that is returned to its original position by a weight provided at an upstream end portion in the transport direction of the transported object after being delivered to the split conveyor. The sorting apparatus according to claim 2,
A distribution roller characterized by having a roller that is rotated by a dynamic frictional force caused by the movement of the conveyed product caused by the position head of the conveyed product at a site where the conveyed products of the sorting conveyor and the start-up conveyor come into contact with each other. apparatus. The sorting apparatus according to claim 2,
The switching mechanism is
A first cam provided at one end in the width direction of the sorting conveyor;
A second cam provided at the other end in the width direction of the sorting conveyor;
A pair of pressing pins that are provided on the starting conveyor and press down an upper cam of the first cam or the second cam when the starting conveyor is lowered;
A sorting device comprising: The sorting apparatus according to claim 1,
The pressing member is a start-up conveyor that is provided on the upstream side of the sorting conveyor in the transport direction of the transported object and is a gravity roller conveyor that transports the transported object toward the sorting conveyor,
The activation conveyor further includes a sensing roller that moves between a position protruding from the gravity roller array that is a conveyance surface and a position that is pressed by the conveyed object and retracts from the conveyance surface of the activation conveyor. Characteristic sorting device. The distribution device according to claim 5,
2. A sorting apparatus according to claim 1, further comprising a roller that is rotated by a dynamic frictional force caused by movement of a conveyed product caused by a position head of the conveyed product at a portion where the conveyed product contacts the sorting conveyor. The distribution device according to claim 5,
The switching mechanism is
A first cam provided at one end in the width direction of the sorting conveyor;
A second cam provided at the other end in the width direction of the sorting conveyor;
When the sensing roller is pressed by the transported object and retracted from the transport surface of the start-up conveyor, a pair of pressing pins for pressing down the cam located above the first cam or the second cam;
A link mechanism for connecting the sensing roller and the pair of pressing pins;
A sorting device comprising: The distribution device according to claim 4 or 7,
The switching mechanism is
The cam further includes a pair of cams that abuts the other cam that moves upward when one cam of the first cam or the second cam is pushed down by the pair of pressing pins and rotates the other cam. A sorting apparatus characterized by. The distribution device according to claim 8,
The pair of cams rotate by one cam of the first cam or the second cam pushed down by the pair of pressing pins. The distribution device according to any one of claims 1 to 9,
The first roller conveyor to which the material conveyed by the sorting conveyor in the first state is delivered, and the sorting conveyor arranged in parallel to the first roller conveyor and in the second state And a second roller conveyor to which the transported material is transferred, so that each of the first roller conveyor and the second roller conveyor has an end portion close to the other roller conveyor arranged in parallel being positioned above. A sorting apparatus is provided, wherein a carry-out conveyor arranged to be inclined is provided downstream of the sorting conveyor in the carrying direction of the conveyed product. The distribution device according to any one of claims 1 to 10,
The first roller conveyor to which the material conveyed by the sorting conveyor in the first state is delivered, and the sorting conveyor arranged in parallel to the first roller conveyor and in the second state And a second roller conveyor on which the conveyed product conveyed by
2. The sorting apparatus according to claim 1, wherein the first roller conveyor and the second roller conveyor are roller conveyors having a plurality of skew rollers.

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