JP4721676B2 - Roller conveyor equipment - Google Patents

Description

  The present invention relates to a roller conveyor facility that is used to transport an article (conveyed object) across a plurality of zones.

  Conventionally, the following configuration is provided as this type of roller conveyor equipment. That is, it is a roller conveyor facility that conveys articles across a plurality of zones, and each zone has an accumulator unit that contacts and disconnects the conveyor driving means with respect to the roller group, and a contact and separation action with respect to the roller group. A brake unit for performing the operation and a load detection means including an on-off valve are provided. The inlet port of each on-off valve is connected to the main supply piping side of the working fluid, and an electromagnetic switching valve is provided in the most downstream zone, and a valve unit is provided in each zone excluding the most downstream zone. Yes.

This valve unit incorporates a first valve means, a second valve means, and a switching valve that reversibly acts the accumulator unit and the brake unit. The first valve means can supply the working fluid to the second valve means by opening the on-off valve in the same zone, and when the second valve means is supplied with the working fluid from the first valve means, The switching fluid can be supplied to the switching valve. Sub supply pipe for switching fluid can be selected and connected to the part of the distribution pipe from the main supply pipe to the on-off valve and the part of the supply pipe from the electromagnetic switching valve to the brake unit in one downstream zone (For example, refer patent document 1).
JP 2003-285909 A (2nd page, 1st, 2nd, 7th and 8th figures)

  However, according to the conventional configuration described above, some piping ports support multiple functions, so the piping is complicated, and a branch joint is required on the output port side from the switching valve, resulting in a complicated structure. It becomes. And a decorative board was needed to hide these pipes and branch joints.

Accordingly the invention described in claim 1 of the present invention, perform the piping orderly and clean it, together may eliminate the need for veneer is intended to provide a roller conveyor equipment which can reduce the installation area of the valve unit .

In order to achieve the above-mentioned object, the roller conveyor equipment according to claim 1 of the present invention is a roller conveyor equipment for conveying articles across a plurality of zones, and each zone includes a group of rollers. An accumulator unit for connecting and disconnecting the conveyor driving means, a brake unit that abuts and separates against the roller group, and a load detection means provided with an opening / closing valve are provided, and an inlet side port of each opening / closing valve is Connected to the main supply piping side of the working fluid, an electromagnetic switching valve is provided in the most downstream zone, and a valve unit for reversibly acting the accumulator unit and the brake unit in each zone except the most downstream zone. provided, said a queue Muyunitto, the brake unit is disposed inside side of the a queue Muyunitto, before and after each With pairs of actuators are arranged, the distance between the pair of actuators in the brake unit is set smaller than the interval of the pair of actuators in A queue Muyunitto, valve unit which is disposed inside side of the brake unit is actuated A receiving body connected to the main fluid supply pipe, a switching valve body for reversibly supplying the working fluid from the receiving body to the accumulator side and the brake unit side, and a working fluid from the switching valve body and sorting supplies joint body and the unit side and the brake unit side, the working fluid by opening motion of the opening and closing valve and a distributing valve body that can be supplied to the switching valve body in the same zone, the joint body, the conveyor transport path A first distribution path on the accumulator side that is shaped as a through-hole in a direction along The second distribution path on the key side is formed such that the second distribution path is positioned on the brake unit side with respect to the first distribution path. In each valve unit, the first distribution path is the same via the accumulation side tube. Connected to the actuator of the accumulator unit in the zone, and the second distribution path is connected to the actuator of the brake unit in the same zone via the brake side tube, and the valve unit is connected to the receiving body and the joint with the switching valve body in the middle. The body is arranged on both sides and integrated with each other, and the distribution valve body is arranged in an overlapping manner on this integrated structure, and a protrusion is erected on the upper surface side of the receiving body. An upward nut body is provided, and the sorting valve body is provided with a cylindrical fitting body that can be externally fitted to the projection body from above and a cylindrical body that communicates with the nut body. In the communication state, the bolt body passed through the cylindrical body from above is screwed into the nut body, so that the distributing valve body is integrated with the integrated component. It is characterized by.

Therefore, according to the first aspect of the present invention, the distributing valve body is placed in an overlapping manner on the integrated structure in which the receiving body and the joint body are arranged on both sides and integrated with the switching valve body in the middle. In this case, after positioning the cylindrical fitting body from the upper side with respect to the projection body, the bolted body passed from the upper side through the cylindrical body is screwed into the nut body, thereby superposing the integration. The component and the distributing valve body can be integrated to form a valve unit. Such a mounting posture of the valve unit group can be performed by reducing the installation area by the superposed configuration of the distributing valve body with respect to the integrated structure. Further, during operation, the switching valve body can be switched by the working fluid supplied from the side of the distributing valve body by operating the distributing valve body based on the operation of the on-off valve detected by the load detection means. The working fluid received from the main supply pipe to the receiving body can be reversibly supplied to the accumulator unit side and the brake unit side via the switching valve body, and further, the accumulator unit side and the brake unit side can be connected via the joint body. Can be distributed and fed. As a result, the brake unit and the accumulator unit are reversibly acted on the roller group, so that articles can be conveyed between the zones. At that time, the second distribution path is positioned on the brake unit side with respect to the first distribution path, and the distance between the pair of actuators in the brake unit is set smaller than the distance between the pair of actuators in the accumulator unit. Thus, the accumulator side tube and the brake side tube are in a state in which both the brake side tubes are positioned inside the accumulator side tubes, so that they can be arranged neatly and neatly without overlapping (intersecting) with each other. The use length can be shortened (as the shortest) and can be arranged at low cost. Furthermore, by providing a receiving body, a switching valve body, a joint body, and a sorting valve body with functions, that is, by separating the piping ports for each function, multiple pipes are neatly arranged neatly and neatly. In addition, piping can be made as a simple structure without requiring a branch joint.

Its to the roller conveyor equipment according to claim 2 of the present invention, in the configuration of claim 1, wherein the above, the upper surface side of the receiving member, a pair of protrusions are vertically provided, between both projections In addition, an upward nut body is provided at a position near one of the protrusions, and the distribution valve body is provided with a pair of cylindrical fitting bodies that can be externally fitted to the pair of protrusions from above, and both cylindrical shapes. A pair of cylindrical bodies are provided between the fitting bodies, and both the cylindrical fitting bodies are positioned by being externally fitted to both protrusions from both above when the front and back of the sorting valve body are changed. Further, the two cylindrical bodies are arranged so as to selectively communicate with the nut body when the front and back of the sorting valve body are changed, and in the communication state, the cylindrical bodies are disposed above the cylindrical body. by bolt member through the is screwed into the nut body, It is obtained by it said that in both superimposed position superimposed on integrated constructs by changing the front and back of the divided valve bodies are integrated capable constructed by a common connector Ri.

Therefore, according to the second aspect of the present invention, the sorting valve body is placed on the integrated structure integrated by disposing the receiving body and the joint body on both sides with the switching valve body in the middle, and the front and back sides thereof are changed and overlapped. When mounting in the shape, after positioning both cylindrical fitting bodies from both above with respect to both protrusions, the bolt body passed from above through the cylindrical body is screwed into the nut body Thus, the integrated unit that has been polymerized and the distributing valve body can be integrated via a common connector to form a valve unit. As a result, the distribution direction by the distribution valve body is reversed, so that one type of valve unit can correspond to the roller conveyor equipment in the left and right conveyor flow directions.

According to the first aspect of the present invention described above, the distributing valve body is mounted in an overlapping manner on the integrated structure in which the receiving body and the joint body are arranged on both sides and integrated with the switching valve body in the middle. When placing, the cylindrical fitting body was externally fitted to the projection body from above and positioned, and then the bolt body passed from above through the cylindrical body was screwed onto the nut body, thereby being polymerized. The integrated component and the distributing valve body can be easily integrated to constitute a valve unit. Such a mounting posture of the valve unit group can be performed by reducing the installation area by the overlapping configuration of the distributing valve body with respect to the integrated structure. Further, during operation, the switching valve body can be switched by the working fluid supplied from the distribution valve body side by operating the distribution valve body based on the operation of the on-off valve detected by the load detection means. The working fluid received from the main supply pipe into the receiving body can be reversibly supplied to the accumulator unit side and the brake unit side via the switching valve body, and further, the accumulator unit side and the brake unit side via the joint body. Can be distributed. As a result, the brake unit and the accumulator unit are reversibly acted on the roller group, and the articles can be smoothly and reliably conveyed between the zones. At that time, the second distribution path is positioned on the brake unit side with respect to the first distribution path, and the distance between the pair of actuators in the brake unit is set smaller than the distance between the pair of actuators in the accumulator unit. Thus, the accumulator side tube and the brake side tube are in a state where the both brake side tubes are positioned inside the accumulator side tubes, and thus can be arranged neatly and neatly without overlapping (intersecting) with each other. The length of use can be shortened (as the shortest) and can be installed at low cost. Furthermore, by providing a receiving body, a switching valve body, a joint body, and a sorting valve body with functions, that is, by separating the piping ports for each function, multiple pipes are neatly arranged neatly and neatly. In addition, the piping can be made as a simple structure without the need for a branch joint, so that a decorative plate can be dispensed with, and the overall cost can be reduced.

Further, according to claim 2 of the present invention described above, the sorting valve body over and in the switching Rikae valve body integrated by placing the receiving body and joint member on each side integrated construct, the When placing the front and back sides in a stacked form, after positioning both cylindrical fitting bodies from both above with respect to both protrusions, the bolt body passed through the cylindrical body from above is nut body. By screwing together, it is possible to easily integrate the polymerized integrated structure and the distributing valve body through a common connector to constitute a valve unit. As a result, the sorting direction by the sorting valve body is reversed, so that one type of valve unit can cope with the roller conveyor equipment in the left and right conveyor flow directions.

[Embodiment 1]
Below, Embodiment 1 of this invention is demonstrated based on FIGS. 1-12 as the state employ | adopted for the payout specification one by one.

  In FIG. 1 to FIG. 5, a frame main body 2 of a roller conveyor facility 1 that conveys articles between a plurality of zones includes a pair of left and right conveyor frames 3 and a connecting frame 4 provided between the lower portions of both conveyor frames 3. And leg members 5 are connected between a lower portion of the conveyor frame 3 and at a plurality of positions in the length direction. Between the two conveyor frames 3, rollers 6 are provided so as to be freely rotatable and located at a number of locations in the length direction. That is, the roller 6 group is supported so as to be freely rotatable between the conveyor frames 3 by positioning the hexagonal shaft portion of the roller shaft 7 in the hexagonal hole (or notch portion) formed in the conveyor frame 3. Yes. Thereby, the conveyor conveyance path | route 9 is formed above the roller 6 group.

A conveyor driving means 10 is disposed in the frame main body 2 and at a position on the one conveyor frame 3 side. In other words, reversal guide wheels 11 are disposed at both ends of the conveyor transport path 9 below the roller 6 group, and the reversing guide wheel bodies 11 are positioned below the roller 6 group. A unit base 20 is provided. An accumulator unit 30 is provided on the unit base 20 in a state in which the conveyor transport path 9 is divided into a plurality of zones Z _{1 to} Z _n , and a brake unit 40 is arranged in pairs inside each accumulator unit 30. It is installed.

  A box-shaped drive unit frame 12 is provided between the lower portions of both conveyor frames 3, and a motor 13 with a speed reducer is mounted on the drive unit frame 12, and a driving wheel 14 is provided on the output shaft of the motor 13. Is provided. Further, near the motor 13, one conveyor frame 12 is provided with a pair of reversing guide wheels 15, and the drive unit frame 12 is provided with a tension guide wheel 16 whose position is adjustable.

  An endless rotating body 18 composed of an endless belt for driving, etc. is hung from the upper side over both the reversing guide wheel body 11 and the accumulator unit 30 group, and is configured to contact the roller 6 group from below. At the same time, the rotational power is transmitted by the contact. Further, it is hung on the lower guide wheel body 17 group from above, and after being hung on both the reversing guide wheel body 15 and the tension guide wheel body 16, it is hung on the driving wheel body 14, thereby providing rotational power. It is configured to be. That is, many of the rollers 6 are configured to be driven and rotated by the endless rotating body 18 of the conveyor driving means 10 coming into contact with the lower side. An example of the conveyor driving means 10 is configured by the above 11 to 18 and the like.

  The unit base 20 includes a horizontal plate portion 21 and a vertical plate portion 22 that is bent upward from both ends of the horizontal plate portion 21 in the conveyor width direction, and is positioned above the connection frame 4. A spacer 23 is disposed between the horizontal plate portion 21 and the connection frame 4, and then coupled by a coupling tool (bolt / nut) 24. At that time, a return path 19 of the endless rotating body 18 is formed by an interval (gap) between the horizontal plate portion 21 and the connecting frame 4 determined by the height dimension of the spacer 23.

The roller 6 group is divided into a plurality of zones Z _{1 to} Z _n in the direction of the conveyor transport path 9, and the conveyor driving means 10 is connected to and disconnected from the roller 6 group for each zone Z _{1 to} Z _n. The accumulator unit 30 is disposed.

  The accumulator unit 30 includes a lifting guide means 31 provided between the unit base 20 and the horizontal plate portion 21, a lifting frame 32 guided by the lifting guide means 31, and the horizontal plate portion 21 and the lifting frame 32. And an air actuator 33 for raising and lowering, and upper guide wheels 34 provided at four places (a plurality of places) in the direction of the conveyor transport path 9 in the raising and lowering frame 32, and the like. The upper guide wheel group 34 is configured to be able to contact the endless rotating body 18 from below.

  Here, a pair of elevating guide means 31 is provided in the front and rear along the conveyor conveyance path 9, and a pair of air actuators 33 are positioned inside the elevating guide means 31 in the front and rear along the conveyor conveyance path 9. ) Is arranged. An example of the accumulation unit 30 is configured by the above 31-34 and the like.

The brake units 40 that abut against and separate from the group of rollers 6 are arranged in pairs on the inner side of each accumulator 30 and on the unit base 20 side. That is, in the direction of the conveyor transport path 9, the brake unit 40 disposed for each of the zones Z _{1 to} Z _n is connected to the lifting guide means 41 provided between the unit base 20 and the horizontal plate portion 21. The guided elevating body 42, the elevating air actuator 43 provided between the unit base 20 and the elevating body 42, and the roller 6 group provided on the elevating body 42 can freely operate from below ( The brake member 44 is configured to be freely contactable.

  The elevating body 42 is formed in a C-shaped rail shape having an open top by a horizontal plate portion 42a and a pair (a plurality) of rising portions 42b that are continuously bent upward from the left and right edge portions of the horizontal plate portion 42a. It is formed in a (C-shaped frame shape). The brake member 44 is formed in a rectangular block shape by rubber, for example. At this time, a groove 45 that can be fitted to the rising portion 42b from above is formed on the lower side so as to be opened downward and forward and backward.

  Here, a pair of elevating guide means 41 are disposed in the front and rear along the conveyor conveyance path 9, and a pair of air actuators 43 are disposed inside the elevating guide means 41 and are disposed in the front and rear along the conveyor conveyance path 9. ) Is arranged. The distance l between the pair of air actuators 43 is set to be smaller than the distance L between the pair of air actuators 33 in the accumulator unit 30, that is, l <L. At this time, the air actuator 43 of the brake unit 40 is positioned inside the air actuator 33 of the accumulator unit 30. An example of the brake unit 40 is configured by the above 41 to 45 and the like.

  The air actuator 33 of the accumulator unit 30 and the air actuator 43 of the brake unit 40 are switched between valve units (described later) provided on the lateral plate portion 21 of the unit base 20 inside the brake unit 40. By the operation, the roller 6 group is configured to reversibly act. Here, in order to attach and detach the valve unit at a predetermined position in the horizontal plate portion 21 of the unit base 20, one inner round hole (an example of a positioning portion) in the conveyor width direction in order from the inside to the outside. ) 25, two rectangular holes (an example of a locking part) 26 and one outer round hole (an example of a positioning part) 27 are formed in the direction of the conveyor conveyance path 9.

Each zone Z _{1 to} Z _n is provided with a stock detection means 50 having an on-off valve. That is, the load detection means 50 has bracket bodies 52 that can swing around the lateral axis 51 on both sides in the conveyor width direction. Here, the bracket body 52 is a Y-shaped link body in a side view, and the upper two places (at least two places) are formed in the attachment parts 52a and 52b, and the remaining lower one place is the operation part 52c. Is formed. A through hole 53 is formed in a central portion that is an intersecting portion of the bracket body 52, and the roller is fitted onto the round shaft portion of the roller shaft 7 of the target roller 6 through the through hole 53. It is formed to be swingable around a lateral axis 51 that is an axis.

  A sensing roller 54 that can be moved up and down between the rollers 6 is attached between the bracket bodies 52. That is, the sensing roller 54 is freely mounted between the first mounting portions 52a located on the downstream side (lower side) via the horizontal shaft 55 in the conveyor width direction. A rod-like weight body 56 is attached between the second attachment portions 52b located on the upstream side (upper side). At that time, the sensing roller 54 is configured to protrude from the conveyor conveying surface 8 by swinging both bracket bodies 52 by the weight biasing force of the weight body 56.

An example of the stock detection means 50 is configured by the above 51-56 and the like. Here, the arrangement position of the stock detection means 50 in the direction of the conveyance path 9 in each of the zones Z _{1 to} Z _n is set as appropriate according to the stride of the article being conveyed, and is appropriately changed. Is.

  Opposite to the operation portion 52c of one (at least one) bracket body 52, an on / off valve 68 that is normally shut off is provided on the conveyor frame 3 side, and the on / off valve 68 has a sensing roller 54 that resists the weight biasing force. Thus, the valve unit in the upstream zone is switched to the brake action side by being operated to communicate with the operation portion 52c.

  That is, a left and right target shape valve support 60 is provided, the valve support 60 is formed with a recess 61 opened upward and left and right in the central portion, and a valve support 62 is formed on the upstream side. In addition, a connecting portion 63 is formed on the downstream side. The valve support 60 is arranged in a state in which the operation portion 52c is fitted in the recess 61, and is fixed to the conveyor frame by a fixture (bolt / nut) 64 that is applied from the connecting portion 63 to the conveyor frame 3. It is fixed on the 3 side. The valve support 62 has a concave shape opened upward and forward / rearward, and is fixed by a fixture (bolt / nut) 65 after the on-off valve 68 is fitted.

  At this time, the front and rear surfaces of the recess 61 are formed on the protruding stopper surface 61a and the retreating stopper surface 61b. Normally, the operating portion 52c is brought into contact with the protruding stopper surface 61a by swinging due to the weight biasing force. Yes. In this state, the operating portion 52c is separated from the operating portion 69 of the on-off valve 68, and thus the on-off valve 68 is normally in a shut-off state.

In FIGS. 1, 2, 4, and 6 to 11, the accumulator unit 30 and the brake unit 40 are reversible in the zones Z _{2 to} Z _n excluding the zone Z ₁ at the front end (most downstream). A valve unit 70 is provided to act on the system. Here, the valve unit 70 includes a receiving body 71 connected to a main supply pipe 150 for pressurized air (an example of a working fluid) A, and the pressurized air A from the receiving body 71 is connected to the accumulator unit 30 side and the brake unit 40. A switching valve body 81 that is reversibly supplied to the side, a joint body 101 that supplies pressurized air A from the switching valve body 81 to the accumulator unit 30 side and the brake unit 40 side, and an on-off valve in the same zone The distribution valve body 111 is configured such that the pressurized air A can be supplied to the switching valve body 81 by opening 68.

  That is, the main body 72 of the receiving body 71 has a rectangular block shape, and a through-hole portion 73 is formed in the direction along the conveyor conveyance path 9 when attached to the unit base 20, and the inner end is the through-hole portion 73. A supply hole 74 is formed which communicates with the middle and is open at the outer end. Then, on the outer surface side facing downward, one round protrusion (an example of a positioned portion) 75 that can be fitted to the outer round hole 27 from above, and an action from above on the rectangular hole 26. Are provided with two (a pair of) locked pieces (an example of a locked portion) 76 that can be elastically engaged with each other.

  Here, both the locking pieces 76 are plate-shaped that can be elastically deformed in the adjacent direction. On the outer surface side of the free end, a guide inclined surface 76a that is on the outer side toward the upper side and an upper side of the guide inclined surface 76a. And a locking surface 76b extending in the adjacent direction. One example of the receiving body 71 is constituted by the above 72 to 76 and the like, and the receiving body 71 is integrally formed of resin, for example.

  The valve body 82 of the switching valve body 81 is in contact with the open side of the supply hole 74 in the body 72 of the receiving body 71. The valve body 82 is formed with a receiving valve chamber 83 communicated with the supply hole 74, and a pair of supply valve chambers, that is, an accumulator-side supply valve chamber 84A with the receiving valve chamber 83 in the middle. And the brake side supply valve chamber 84B are formed separately. And between the receiving valve chamber 83 and both supply valve chamber 84A, 84B is formed in valve seat 85A, 85B.

  A valve shaft 86 is disposed in a state of being inserted through the valve chambers 83, 84A, 84B. The valve shaft 86 is a valve that can be selectively brought into contact with and separated from the valve seats 85A, 85B. Body 87A, 87B is provided. A block body 91 in which a cylinder chamber 90 is formed is disposed on one end side of the valve body 82, and a cover body 92 is disposed on the other end side. A piston 88 positioned in the cylinder chamber 90 is provided at one end of the valve shaft 86, and a spring 89 that moves the valve shaft 86 toward the cylinder chamber 90 between the other end and the cover body 92. Is provided. The block body 91 is formed with a communication path 93 communicating with the cylinder chamber 90 and a supply path 94 communicating with the receiving valve chamber 83.

  The valve body 82 is formed on the receiving body 71 side with a receiving passage 95 that allows the supply hole 74 and the receiving valve chamber 83 to communicate with each other, and an accumulator-side exhaust passage 96A that can communicate with the accumulator-side supply valve chamber 84A. And a brake-side exhaust passage 96B that can communicate with the brake-side supply valve chamber 84B. On the opposite side of the valve body 82, an accumulator supply passage 97A communicating with the accumulator supply valve chamber 84A and a brake supply passage 97B communicating with the brake supply valve chamber 84B are formed separately. Yes.

  When the cylinder chamber 90 is in a non-pressurized state, the switching valve body 81 is moved to one end side by the urging force of the spring 89 as shown in FIG. 7, and the valve body 87B is moved to the valve seat 85B. Thus, the receiving path 95 and the accumulation side supply path 97A are configured to communicate with each other via the accumulation side supply valve chamber 84A. When the cylinder chamber 90 is in a pressurized state, the switching valve body 81 moves the valve shaft 86 to the other end side against the urging force of the spring 89, as shown in FIG. Acting on the seat 85A, the receiving path 95 and the brake side supply path 97B are configured to communicate with each other via the brake side supply valve chamber 84B.

  Members 98A and 98B for noise reduction and dust removal are provided outside the exhaust passages 96A and 96B. The valve body 82, the block body 91, and the cover body 92 are integrated by a bolt 99 or the like. An example of the switching valve body 81 is configured by the above 82-99 and the like.

  The main body 102 of the joint body 101 is in contact with the open side of the supply passages 97A and 97B in the valve main body 82 of the switching valve body 81. The main body 102 has a rectangular block shape, and a first receiving path 103A that can communicate with the accumulation side supply path 97A and a second receiving path 103B that can communicate with the brake side supply path 97B are formed in parallel. . The back portions of the receiving paths 103A and 103B are not open, and the back portion of the first receiving path 103A is branched to the first distribution path 104A, and the back portion of the second receiving path 103B is the second distribution path. A branch communication is made to 104B.

  Here, the distribution paths 104 </ b> A and 104 </ b> B are formed in a through-hole shape that is in the direction along the conveyor transport path 9 when attached to the unit base 20, so that a pair (plural) of front and rear along the conveyor transport path 9. It will be branched. Further, the distribution paths 104A and 104B are formed with a phase shifted in the conveyor width direction. Further, on the outer surface side of the joint body 101 that faces upward and downward, one round protrusion (an example of a positioned portion) 105 that can be fitted into the inner round hole 25 from above is provided. ing. An example of the joint body 101 is configured by the above 102 to 105 and the like.

  The receiving body 71, the switching valve 81, and the joint body 101 are integrated by appropriate means in a state where the receiving body 71 and the joint body 101 are disposed on both sides with the switching valve 81 in the middle.

  The distribution valve body 111 includes two low-pressure priority type shuttle valves 113 and 123 that share a valve body 112. That is, the two low-pressure priority type shuttle valves 113, 123 have a pair of valve chambers 115A, 115B, 125A, 125B communicated with each other via communication passages 114, 124, respectively. Valve shafts 116 and 126 are slidably provided in the communication passages 114 and 124, and valve bodies 117A, 117B, 127A, and 127B are provided at both ends of the valve shafts 116 and 126, respectively.

  Here, the wall surfaces forming the valve chambers 115A, 115B, 125A, 125B around the openings of the communication passages 114, 124 are formed in the valve seats 118A, 118B, 128A, 128B, and these valve seats 118A, 118B, 128A, 128B On the other hand, the valve bodies 117A, 117B, 127A, 127B are configured to be able to contact and separate alternatively. The valve chambers 115A, 115B, 125A, 125B are configured to be able to communicate with the communication passages 114, 124 through the outer periphery of the valve bodies 117A, 117B, 127A, 127B.

  The communication path 114 in the first low-pressure priority type shuttle valve 113 is communicated with the other valve chamber 125A in the second low-pressure priority type shuttle valve 123 via a communication path 119. The valve main body 112 is formed with a supply path 120 that opens to the outside. A communication path 129 from the communication path 124 in the second low-pressure priority type shuttle valve 123 communicates with the back end of the supply path 120. ing.

  The first low-pressure priority type shuttle valve 113 is provided with an outlet side connection tool 131B communicated with one valve chamber 115B and an inlet side connection tool 131A communicated with the other valve chamber 115A. An inlet-side connector 133 that communicates with one valve chamber 115 </ b> B through 132 is provided. Further, the second low-pressure priority type shuttle valve 123 includes an outlet side connector 134 communicated with one of the valve chambers 125B, and an inlet side connector 136 communicated with one of the valve chambers 125B via the joint channel 135. Is provided. An example of the sorting valve body 111 is configured by the above 112 to 136 and the like.

  As described above, the valve unit 70 having the above-described configuration is formed by integrating the receiving body 71 and the joint body 101 on both sides with the switching valve body 81 in the middle, and above the integrated structure. The distribution valve body 111 is arranged in a stacked manner. At that time, the distribution valve body 111 can be overlapped on an integrated component by changing the front and back sides, and can be integrated by a common connector 144 in both stacked postures.

  That is, on the upper surface side of the main body 72 in the receiving body 71, a pair of protrusions 141 are erected in the direction along the conveyor conveyance path 9, and between the protrusions 141 and near one protrusion 141. Is provided with an upwardly facing nut body 145. A pair of cylindrical fitting bodies 142 that can be externally fitted to the pair of protrusions 141 from above are provided at the end of the distribution valve body 111 on the supply path 120 side, and between the two cylindrical fitting bodies 142. Is provided with a pair of cylindrical bodies 146.

  At this time, both the cylindrical fitting bodies 142 are long, so that the both sides of the sorting valve body 111 are externally fitted to both protrusions 141 so that positioning is performed. It is configured. Further, both the cylindrical bodies 146 are arranged so as to selectively communicate with the nut body 145 when the front and back of the sorting valve body 111 are changed. In the communication state, the bolt body 147 passed through the cylindrical body 146 from above is screwed into the nut body 145 so that the distribution valve body 111 is integrated with the integrated structure. . An example of the common connector 144 is configured by the above 145 to 147 and the like.

As shown in FIG. 11, an electromagnetic switching valve 149 that performs the same operation as that of the switching valve body 81 is provided in the zone Z ₁ at the tip end portion (the most downstream side).
Below, the assembly operation | work of the roller conveyor installation 1 in above-described Embodiment 1 is demonstrated.

  First, the sorting valve body 111 is placed in an overlapping manner on an integrated structure in which the receiving body 71 and the joint body 101 are arranged on both sides and integrated with the switching valve body 81 in the middle. This placement is performed with the delivery side connectors 131B and 134 as the connecting path 93 side. At this time, after positioning the two cylindrical fitting bodies 142 from both above with respect to the two protrusions 141, the bolt bodies 147 passed through the cylindrical bodies 146 from above are screwed into the nut bodies 145. Thus, as shown in FIG. 10, the valve unit 70 can be configured by easily integrating the integrated integrated structure and the distributing valve body 111 via the connector 144.

  Next, in a state where both the locking pieces 76 on the valve unit 70 side are opposed to the rectangular hole 26 on the unit base 20 side from above, that is, the guide inclined surface 76a is formed on the edge forming the rectangular hole 26 from above. The valve unit 70 is pushed (lowered) in the contacted state. As a result, both of the locked pieces 76 are elastically deformed in directions approaching each other by guiding the guide inclined surface 76a to the edge, and elastically restored when the guide inclined surface 76a gets over the edge. The elastic engagement posture is such that the locking surface 76b faces the lower surface of the edge. During such operation, the respective round protrusions 75 and 105 on the valve unit 70 side are fitted into the outer round hole 27 and the inner round hole 25 on the unit base 20 side from above.

  In this way, as shown in FIG. 1, the valve unit 70 can be attached to the unit base 20, and at this time, on the integrated structure composed of the switching valve body 81, the receiving body 71, and the joint body 101. The valve unit 70 in which the distributing valve bodies 111 are mounted in an overlapping manner can be easily and quickly attached by one-touch operation from above without performing a large number of locking screws, thereby improving workability. obtain. The mounting posture is such that the locking piece 76 is elastically engaged with the edge on the rectangular hole 26 side so as not to come off, and the round protrusions 75 and 105 are fitted into the round holes 27 and 25. It can always be maintained favorably without being displaced. Further, the mounting posture of the valve unit 70 group can be reduced by a superposition configuration.

  After the valve unit 70 group is attached to the unit base 20 as described above, piping (air supply path) in the payout specification is sequentially performed. That is, in FIGS. 2, 4, 7, 8, and 11, the main supply piping is provided between the through hole portions 73 of the receiving bodies 71 in the adjacent valve units 70 in the direction along the conveyor conveyance path 9. 150 is connected. As a result, the main supply path of the pressurized air A can be formed in a straight line (in series) in the direction along the conveyor transport path 9. One of the open ends of the main supply path is connected to an air supply source (not shown) for supplying pressurized air A, and the other is closed.

Furthermore, the inlet port of the electromagnetic switching valve 149 is connected to the main supply pipe 150 via the supply pipe 151. And the supply piping 152 from the supply path 94 is connected to the inlet side port of the on-off valve 68 in the same zone. In the second zone Z ₂ from the downstream, the branch supply pipe 152 a from the supply pipe 152 is connected to the inlet side connection tool 133 corresponding to the first low-pressure priority type shuttle valve 113 in the distribution valve body 111 in the same zone. ing.

In each of the zones Z _{2 to} Z _n excluding the zone Z ₁ at the distal end portion (the most downstream), the outlet side port of the on-off valve 68 is connected to the supply pipe 153 on the inlet side connection tool 136 side of the distribution valve body 111 in the same zone. Connected through.

A communication pipe 154 for flowing pressurized air (an example of a switching fluid) is provided over each of the zones Z _{2 to} Z _n excluding the zone Z ₁ at the front end portion (the most downstream side). Reference numeral 154 connects the outlet side connector 131B in the first low-pressure priority type shuttle valve 113 and the inlet side connector 133 in the zone one upstream. Further, the outlet side port of the on-off valve 68 in the zone Z ₁ at the tip end portion is connected to the inlet side connection tool 131A in the one upstream zone via the communication pipe 155, and the inlet side port is connected to the main supply pipe 150. Is connected via a distribution pipe 155a.

Further, a sub supply pipe 156 for flowing pressurized air (an example of a switching fluid) is provided over each of the zones Z _{2 to} Z _n excluding the zone Z ₁ at the tip portion. The connection path 119 or the like is used by connecting the outlet side connector 134 of the second low pressure priority type shuttle valve 123 and the inlet side connector 131A of the first low pressure priority type shuttle valve 113 of the upstream zone. Configured. The supply path 120 of the distribution valve body 111 is connected to the communication path 93 of the switching valve body 81 via a supply pipe 158.

  In each valve unit 70 and the electromagnetic switching valve 149, the first distribution path 104A is connected to the air actuator 33 of the accumulation unit 30 in the same zone via the accumulation side tube 159, and the second distribution path 104B is connected to the brake side tube 160. Is connected to the air actuator 43 of the brake unit 40 in the same zone.

  At this time, as described above, the second distribution path 104B is positioned on the brake unit 40 side with respect to the first distribution path 104A, and the distance l between the pair of air actuators 43 in the brake unit 40 is equal to the pair in the accumulator unit 30. Therefore, the accumulator side tube 159 and the brake side tube 160 are in a state where the both brake side tubes 160 are positioned inside the accumulator side tubes 159. Therefore, they can be arranged neatly and nicely without overlapping (intersecting) with each other, and they can be arranged at low cost by shortening the use length (as the shortest).

  Further, as shown in FIG. 4, the main supply pipe 150, the communication pipe 154, the auxiliary supply pipe 156, etc. can be arranged simply and neatly, and can be simply constructed without requiring a branch joint. A board may be unnecessary.

  As described above, the attachment of the valve unit 70 to the unit base 20 and various pipes can be easily and quickly performed by operations from above. After that, the assembly of the roller conveyor group 1 is completed by incorporating the roller 6 group. The removal of the valve unit 70 and the like can be performed by the reverse action.

Next, the basic operation during the operation of the roller conveyor facility 1 will be described.
In the roller conveyor facility 1, the endless rotating body 18 can be rotated by driving the motor 13 in the conveyor driving means 10. At that time, the endless rotating body 18 is supported and guided by the upper guide wheel bodies 34 of the respective accumulator units 30 in the action path portion between the reversing guide wheel bodies 15, and the lower guide wheel bodies 17 group in the return path 19. It passes between the connection frame 4 and the unit base 20 while being supported and guided by.

  When the endless rotating body 18 is rotated in this manner, the endless rotating body 18 is raised by the upper guide wheel body 34 group by extending the air actuator 33 of the accumulator unit 30 and raising the elevating frame 32. Thus, the roller 6 group can be contacted from below. Thereby, the roller 6 group can be driven and rotated by the endless rotating body 18, and thus articles (folding container, container, cardboard, etc.) supported by the roller 6 group can be conveyed on the conveyor conveyance path 9.

  Further, the air actuator 33 of the accumulator unit 30 is contracted to lower the elevating frame 32, so that the endless rotating body 18 can be separated downward from the roller 6 group by the lowering of the upper guide wheel body 34 group. At this time, the air actuator 33 of the brake unit 40 that reversibly moves up and down with the air actuator 33 of the accumulator unit 30 is extended to lift the lifting body 42, so that the brake member 44 is moved to the roller 6 group. It can abut from below. As a result, a braking force is applied to the group of rollers 6 that have been idle due to the separation of the endless rotating body 18, thereby stopping the rotation of the group of rollers 6 and stopping the conveyance of the article.

Then, by the article conveyor in by the action of A queue Muyunitto 30, perform the payout of the article (feeding) from the zone Z ₁ of the tip portion (downstream). Further, by repeating the article conveyance with the accumulator unit 30 acting and the article stop with the brake unit 40 acting, the articles can be conveyed between the zones Z _{1 to} Z _n on the conveyor conveyance path 9. together may intermittently conveyed (forward transport), as described above, sequentially from the zone Z ₁ of the tip section, perform the payout of the article.

Next, in each zone Z ₁ to Z _n, including reversible action between the A queue Muyunitto 30 and the brake unit 40 based on the operation of the load presence detection means 50, the operation in the sequential payout specifications. At this time, the pressurized air A is supplied to the main supply pipe 150, and the pressurized air A flowing from the through hole 73 to the supply hole 74, the receiving path 95, the receiving valve chamber 83, and the supplying path 94 is supplied. , And supplied to the inlet side port of the on-off valve 68 in the same zone via the supply pipe 152.

In the second zone Z ₂ from the downstream side, the pressurized air A flowing from the supply pipe 152 to the branch supply pipe 152 a passes through the inlet connector 133 and the combined flow path 132, and the first low-pressure priority type shuttle valve 113. The valve chamber 115B is supplied to the inlet side connector 133B and the inlet side connector 133 in the upstream zones Z _{3 to} Z _n via the outlet side connector 131B and the connecting pipe 154.

  In such a state, for example, when there is no article on the conveyor conveyance path 9, the load detection means 50 causes the bracket bodies 52 to be moved by the weight biasing force of the weight body 56 as shown by the solid line in FIG. The sensing roller 54 is protruded from the conveyor transport surface 8 by swinging. This protruding posture can be maintained by the operation portion 52c coming into contact with the protruding stopper surface 61a. In this state, the operating portion 52c is separated from the operating portion 69 of the on-off valve 68, and thus the on-off valve 68 is in a shut-off state.

This makes it possible to block A (the main supply pipe pressurized air flows 150 from the distribution pipe 155a in the zone Z ₁ of the tip portion) pressurized air flowing from the supply passage 94 to the supply pipe 152 by opening and closing valve 68, Accordingly, the pressurized air A does not flow through the supply pipe 153, the communication pipe 155, and the sub supply pipe 156.

  Therefore, as shown in FIG. 12A, in the first low-pressure priority type shuttle valve 113, the pressurized air A flowing from the branch supply pipe 152a or the connecting pipe 154 to the combined flow path 132 flows into the valve chamber 115B. Thus, the valve body 117B is brought into contact with the valve seat 118B to block the inflow to the communication path 119. The second low pressure priority type shuttle valve 123 is inactive.

  As a result, in the switching valve body 81, the pressurized air A does not flow into the cylinder chamber 90 through the flow path including the communication path 129, the supply path 120, the supply pipe 158, and the communication path 93. As shown in FIG. 7, the piston 88 is moved to the connecting passage 93 side by the urging force of the valve, and the valve body 87B is applied to the valve seat 85B to shut off the brake side supply valve chamber 84B, and the receiving valve chamber 83 and the accumulator. The side supply valve chamber 84A is communicated.

  As a result, the pressurized air A reaching the through hole 73 of the receiving body 71 via the main supply pipe 150 is supplied to the supply hole 74, the receiving path 95, the receiving valve chamber 83, the accumulating supply valve chamber 84A, and the accumulator. The air supply channel 97A and the first receiving channel 103A are made to flow, and then flow into the air actuators 33 of the accumulator unit 30 through the pair of front and rear first distribution channels 104A and the accumulator side tube 159, and the air actuators 33 are extended. Accordingly, the roller 6 group can be driven and rotated by the endless rotating body 18 so that the article can be conveyed on the conveyor conveyance path 9.

  Note that the pressurized air A in both air actuators 43 of the brake unit 40 flows in reverse to the brake side tube 160, the second distribution path 104B, the second receiving path 103B, the brake side supply path 97B, and the brake side supply valve chamber 84B. After that, it can be discharged from the brake side exhaust passage 96B. At that time, the member 98B is passed to mute and remove dust.

Thereby, the articles supplied to the zone Z _n at the upstream end can be sequentially conveyed in the zones Z _{n to} Z ₁ . At that time, the stock detection means 50 in each of the zones Z _{n to} Z ₁ detects the article and the on-off valve 68 is opened. At this time, pressurized air A is instantaneously supplied to the supply pipe 153 and the combined flow path 135. The second low-pressure priority type shuttle valve 123 does not operate.

The article has been transported reaches the zone Z ₁ of the downstream end, for example, a stopper means (not shown.) When stopped by the electromagnetic switching valve is detected by the article detecting means (not shown.) 149 To switch. As a result, the pressurized air A to the air actuator 33 of the accumulator unit 30 is shut off, the air actuator 33 is contracted, and the elevating frame 32 is lowered, and the upper guide wheel body 34 group is lowered to endlessly. The rotating body 18 can be separated downward with respect to the group of rollers 6.

At the same time, the pressurized air A reaching the supply pipe 151 is caused to flow into both the air actuators 43 of the brake unit 40 via the brake side tube 160, and the air actuators 43 are extended. As a result, the brake member 44 is brought into contact with the roller 6 group from below, and the braking force is applied to the roller 6 group that has been idle due to the separation of the endless rotating body 18 to stop the rotation, thereby conveying the article. It may be located in the zone Z ₁ of the downstream end stop.

Further, when stopping the articles in the zone Z ₁ of the downstream end, load presence detector 50 in the zone Z ₁ of the downstream end, as shown in phantom lines in FIG. 5, against the weight bias force of the weight member 56 Then, both bracket bodies 52 are swung so that the upper surface of the sensing roller 54 is at the same level as the conveyor transport surface 8. Thereby, the operation part 52c contacts the operation part 69 of the on-off valve 68, and the on-off valve 68 is operated in a communicating state.

Then, pressurized air A from the distribution pipe 155a is contacted pipe 155, through a put side connector 131A, the other of the first low-pressure priority type shuttle valve 113 in one upstream of the valve unit 70 of the zone _{Z 2} Into the valve chamber 115A. Accordingly, as shown in FIG. 12B, the valve body 117A is brought into contact with the valve seat 118A to shut off the other valve chamber 115A, and the one valve chamber 115B is connected to the communication path 114 and the communication path 119. Via the other valve chamber 125A of the second low-pressure priority type shuttle valve 123.

  As a result, the pressurized air A in one valve chamber 115B flows into the other valve chamber 125A of the second low-pressure priority shuttle valve 123 via the communication path 114 and the communication path 119. Accordingly, in the second low-pressure priority type shuttle valve 123, as shown in FIG. 12C, the valve body 127A is brought into contact with the valve seat 128A to shut off the other valve chamber 125A, and one valve chamber 125B is communicated with the cylinder chamber 90 via the communication path 124, the communication path 129, the supply path 120, the supply pipe 158, and the communication path 93.

In such a state, when the next article is conveyed to the zone Z ₂ that is one upstream and the load detecting means 50 is detected and moved, the pressurized air A from the supply pipe 153 is merged with the inlet-side connector 136. through the road 135, and flows into the second one of the valve chamber 125B of the low-pressure priority type shuttle valve 123 in the same zone _{Z 2.} The pressurized air A flows into the cylinder chamber 90 through the communication path 124 to the communication path 93.

  As a result, in the switching valve body 81, as shown in FIG. 9, the piston 88 is moved against the biasing force of the spring 89, and the valve body 87A at the other end is made to act on the valve seat 85A. 83 communicates with the brake side supply valve chamber 84B. As a result, the pressurized air A to the air actuator 33 of the accumulator unit 30 is shut off and the elevating frame 32 is lowered, and the endless rotating body 18 is moved downward with respect to the group of rollers 6 by the lowering of the upper guide wheel body 34 group. Can be separated.

At the same time, the pressurized air A from the supply hole 74 is passed through the receiving path 95, the receiving valve chamber 83, the brake side supplying valve chamber 84B, the brake side supplying path 97B, the second receiving path 103B, and the brake side tube 160. Thus, the brake body 44 can be caused to flow into the air actuator 43 of the brake unit 40, thereby raising the elevating body 42 and bringing the brake member 44 into contact with the roller 6 group from below. By such an operation, it is possible to apply a braking force to the roller 6 group that has been idle due to the separation of the endless rotating body 18, thereby stopping the rotation of the roller 6 group and moving the conveyed article one upstream. It can be stopped in the zone _{Z 2.} In addition, the articles conveyed one after another can be sequentially stopped in the upstream zones Z _{3 to} Z _n in the same manner as described above.

Next, the operation of sequentially paying out the articles stopped (stored) in each of the zones Z _{1 to} Z _n as described above will be described.
First, the solenoid switching valve 149 provided in the zone Z ₁ of the downstream end, thereby switching motion by dispensing signal. As a result, the supply of the pressurized air A to the air actuator 43 of the brake unit 40 is cut off, and the pressurized air A is caused to flow into the air actuator 33 of the accumulator unit 30 and thus conveyed to the article as described above. You can pay out with power.

This payout, the load presence detecting means 50 corresponding to the zone Z ₁ of the downstream end-off valve 68 in a non-detection becomes off. In this way one upstream zone _{Z 2,} the first low-pressure priority type shuttle valve 113, the pressurized air A flowing into the merging path 132 from the branch supply pipe 152a and contact pipe 154 to the valve chamber 115B By only flowing in, the valve body 117B is brought into contact with the valve seat 118B to block the flow into the communication path 119, and the second low-pressure priority type shuttle valve 123 is deactivated (see a in FIG. 12). ).

As a result, the zone Z _{2 that} is one upstream is in a state in which the article can be conveyed, and thus the article is conveyed to the zone Z ₁ at the downstream end. Article and carried into the zone Z ₁ of the downstream end, in the same manner as described above, is stopped in the zone Z ₁ of the downstream end. Thus, load presence detection unit 50 corresponding to one upstream zone Z ₂ is the opening and closing valve 68 in the non-detection blocking state, thereafter is operated in the same manner as described above. That is, articles stopped in each of the zones Z _{2 to} Z _n can be sequentially transported to the zones Z _{1 to} Z _n-1 one downstream in sequence. By the above operation, the articles stopped on the conveyor conveyance path 9 can be sequentially paid out.
[Embodiment 2]
Next, Embodiment 2 of the present invention will be described based on FIGS. 13 and 14 as a state where it is adopted in the simultaneous payout specification.

In other words, shows a pipe in unison payout specifications (air supply channel), sequentially piping differs from the in payout specifications shown in the first embodiment, the charged side connector 133 in one upstream zone Z _2, the tip The portion of the brake side tube 160 from the electromagnetic switching valve 149 in the zone (most downstream) zone Z ₁ is connected via a branch supply pipe 162.

Next, in each of the zones Z _{1 to} Z _n , the action of the simultaneous dispensing specification including the reversible action of the accumulator unit 30 and the brake unit 40 based on the operation of the stock detection means 50 will be described.

That is, for example, when there is no article in the conveyor transport path 9, the stock detection means 50 is not detected as shown by the solid line in FIG. 5, and the on-off valve 68 is in a shut-off state. This makes it possible to block A (the main supply pipe pressurized air flows 150 from the distribution pipe 155a in the zone Z ₁ of the tip portion) pressurized air flowing from the supply passage 94 to the supply pipe 152 by opening and closing valve 68, Accordingly, the pressurized air A does not flow through the supply pipe 153, the communication pipe 155, and the sub supply pipe 156.

  Accordingly, as shown in FIG. 14A, the second low-pressure priority type shuttle valve 123 is inactivated. The electromagnetic switching valve 149 is also connected to the accumulator unit 30 side, and the pressurized air A does not flow through the branch supply pipe 162. Therefore, the first low-pressure priority type shuttle valve 113 is also inactivated.

  As a result, as shown in FIG. 7, the pressurized air A reaching the through hole 73 of the receiving body 71 through the main supply pipe 150 is supplied to the supply hole 74, the receiving path 95, the receiving valve chamber 83, the accumulator. The side supply valve chamber 84A, the accumulation side supply path 97A, and the first receiving path 103A are made to flow, and then flow into the air actuators 33 of the accumulation unit 30 through the pair of front and rear first distribution paths 104A and the accumulation side tube 159. The air actuator 33 is extended and driven, and the endless rotating body 18 drives and rotates the group of rollers 6 so that the article can be conveyed on the conveyor conveyance path 9.

Accordingly, the articles supplied to the zone Z _n in the upstream end may be sequentially carried in each zone Z _n to Z _1. At that time, the stock detection means 50 in each of the zones Z _{n to} Z ₁ detects the article and the on-off valve 68 is opened. At this time, pressurized air A is instantaneously supplied to the supply pipe 153 and the combined flow path 135. The second low-pressure priority type shuttle valve 123 does not operate.

The article has been transported reaches the zone Z ₁ of the downstream end, for example, a stopper means (not shown.) When stopped by the electromagnetic switching valve is detected by the article detecting means (not shown.) 149 To switch. As a result, as shown in FIG. 9, the pressurized air A to the air actuator 33 of the accumulator unit 30 can be shut off, and the endless rotating body 18 can be separated downward with respect to the group of rollers 6. Then, the pressurized air A reaching the supply pipe 151 can be caused to flow into the air actuator 43 of the brake unit 40, whereby the brake member 44 can be brought into contact with the roller 6 group from below. As a result, a braking force is applied to the group of rollers 6 that have been idle due to the separation of the endless rotating body 18, thereby stopping the rotation of the group of rollers 6 and stopping the conveyance of the article.

Then, when stopping the articles in the zone Z ₁ of the downstream end, to actuate the opening and closing valve 68 of the load presence detector 50 in the zone Z ₁ of the downstream end in communication with. Then, pressurized air A is contacted piping 155 from the distribution pipe 155a, through the put side connector 131A, a first low-pressure priority type shuttle valve 113 in one upstream of the valve unit 70 of the zone _{Z 2} other It flows into the valve chamber 115A. As a result, as shown in FIG. 14B, the valve body 117A is brought into contact with the valve seat 118A to shut off the other valve chamber 115A, and the one valve chamber 115B is connected to the communication path 114 and the communication path 119. Via the other valve chamber 125A of the second low-pressure priority type shuttle valve 123.

  At this time, the pressurized air A flowing through the brake side tube 160 flows from the branch supply pipe 162 and the connection pipe 154 to the combined flow path 132 and flows into one valve chamber 115B of the first low-pressure priority type shuttle valve 113. is doing. As a result, the pressurized air A in one valve chamber 115B flows into the other valve chamber 125A of the second low-pressure priority shuttle valve 123 via the communication path 114 and the communication path 119. Accordingly, in the second low-pressure priority type shuttle valve 123, as shown in FIG. 12C, the valve body 127A is brought into contact with the valve seat 128A to shut off the other valve chamber 125A, and one valve chamber 125B is communicated with the cylinder chamber 90 via the communication path 124, the communication path 129, the supply path 120, the supply pipe 158, and the communication path 93.

Note that the pressurized air A that has flowed into one valve chamber 115B of the first low-pressure priority shuttle valve 113 flows to the valve units 70 in the upstream zones Z _{3 to} Z _n one after another via the communication pipe 154. .

In such a state, when the next article is conveyed to the zone Z ₂ that is one upstream and the load detecting means 50 is detected and moved, the pressurized air A from the supply pipe 153 is merged with the inlet-side connector 136. through the road 135, and flows into the second one of the valve chamber 125B of the low-pressure priority type shuttle valve 123 in the same zone _{Z 2.} The pressurized air A flows into the cylinder chamber 90 through the communication path 124 to the communication path 93.

  As a result, in the switching valve body 81, as shown in FIG. 9, the piston 88 is moved against the biasing force of the spring 89, and the valve body 87A at the other end is made to act on the valve seat 85A. 83 communicates with the brake side supply valve chamber 84B. As a result, the pressurized air A to the air actuator 33 of the accumulator unit 30 is shut off and the elevating frame 32 is lowered, and the endless rotating body 18 is moved downward with respect to the group of rollers 6 by the lowering of the upper guide wheel body 34 group. Can be separated.

At the same time, the pressurized air A from the supply hole 74 can be caused to flow into the air actuator 43 of the brake unit 40 via the brake side tube 160 and the like, so that the brake member 44 can come into contact with the roller 6 group from below. . As a result, a braking force is applied to the group of rollers 6 that have been idle due to the separation of the endless rotating body 18, thereby stopping the rotation of the group of rollers 6, and transporting the article one zone upstream of Z _2. You can stop on. In addition, the articles conveyed one after another can be sequentially stopped in the upstream zones Z _{3 to} Z _n in the same manner as described above.

Next, the operation of dispensing the articles stopped (storage) in each of the zones Z _{1 to} Z _n as described above will be described.
First, the solenoid switching valve 149 corresponding to the zone Z ₁ of the downstream end, thereby switching motion by dispensing signal. As a result, the supply of the pressurized air A to the air actuator 43 of the brake unit 40 is cut off, and the pressurized air A is caused to flow into the air actuator 33 of the accumulator unit 30 and thus conveyed to the article as described above. You can pay out with power.

At the same time, the supply of pressurized air A through a branch supply pipe 162 is stopped, thereby the first low pressure priority type shuttle valve 113 in each zone Z ₂ to Z _n the upstream coupling pipe 154 The flow of the pressurized air A through is stopped.

As described above, when the payout articles from the zone Z ₁ of the downstream end, load presence detection means 50 of the zone Z ₁ of the downstream end becomes blocking off valve 68 in the non-detection, contact Te following The pressurized air A does not flow through the piping 155 for use. Thus, as shown in (d) of FIG. 14, the first low-pressure priority type shuttle valve 113 in each zone _Z 2 to Z _n upstream becomes inoperative. At this time, the pressurized air A flowing from the supply pipe 153 to the combined flow path 135 flows into one valve chamber 125B of the second low-pressure priority type shuttle valve 123, so that the valve body 127B is moved to the valve seat 128B. The inflow to the communication path 124 is blocked by contacting.

As a result, in the upstream zones Z _{2 to} Z _n , the switching valve body 81 does not move and maintains the state in which the pressurized air A is flowing into the air actuator 33 of the accumulator unit 30. A conveying force can be applied to the article. As a result, the group of articles that have been stopped in each of the zones Z _{2 to} Z _n can be sequentially transported to the downstream zone, and thus the group of articles can be delivered simultaneously.

As described above, the arrangement of the on-off valve 68 and the valve unit 70 is not changed, and the piping is merely changed by changing the connection position on the upstream end side in the branch supply piping 162 (152a), and the other is not changed. Switching from the sequential payout specification to the simultaneous payout specification, or switching from the simultaneous payout specification to the sequential payout specification can be performed easily and easily.
[Embodiment 3]
Next, Embodiment 3 of the present invention will be described with reference to FIGS.

  In the third embodiment, as compared with the first embodiment, the distribution valve body 111 is superposed on the integrated structure with the front and back sides changed. That is, the distribution valve body 111 is placed on the integrated component integrated by the receiving body 71 and the joint body 101 being arranged on both sides with the switching valve body 81 in the middle, and the insertion side connecting device 131A, 133 and 136 are placed on the connecting path 93 side in a stacked manner. Then, after positioning both tubular fitting bodies 142 from both above with respect to both protrusions 141, the bolt body 147 passed through the tubular body 146 from above is screwed into the nut body 145. The valve unit 70 can be configured by easily integrating the polymerized integrated component and the distribution valve body 111 via the common connector 144.

  According to the third embodiment, the distribution direction by the distribution valve body 111 is reversed, so that even if the conveyor flow direction is the reverse direction in the roller conveyor facility 1, it can be handled by one type of valve unit 70. .

In the above-described embodiment, various pipes such as the main supply pipe 150 may be made of metal, resin, rubber, or the like, or a combination thereof.

  In the above-described embodiment, as the valve unit 70, the distribution valve body 111 can be overlapped on an integrated component by changing the front and back sides, and can be integrated by the common connector 144 in both stacked postures. However, this may not be possible to change the front and back, and may be a form integrated in a fixed posture.

  In the embodiment described above, the valve unit 70 is mounted on the unit base 20 by a one-touch operation. This is because the valve unit 70 is mounted on the unit base 20 by a set screw type or the like. It may be a format.

  In the above-described embodiment, the air actuator 33 is used as the accumulator actuator and the air actuator 43 is used as the brake actuator. However, this may be an actuator using hydraulic pressure.

1 is a longitudinal front view of a roller conveyor facility according to a first embodiment of the present invention. FIG. It is a partially cutaway top view of the roller conveyor equipment. It is a partially cutaway side view of the roller conveyor facility. It is a partially cutaway top view of the principal part in the roller conveyor equipment. It is a partially cutaway side view of the load detection means part in the roller conveyor equipment. It is the disassembled perspective view seen from the valve unit part in the roller conveyor installation. It is a cross-sectional top view of the integrated structure in the valve unit part of the roller conveyor equipment. It is a cross-sectional top view of the distribution valve body in the valve unit part of the roller conveyor equipment. It is a cross-sectional top view of the principal part of the integrated structure in the valve unit part of the roller conveyor equipment. The valve unit of the roller conveyor equipment is shown, (a) is a plan view, (b) is a side view, and (c) is a front view. It is piping explanatory drawing in the sequential delivery specification of the roller conveyor equipment. It is operation | movement explanatory drawing of the valve unit part in the sequential delivery specification of the roller conveyor equipment. FIG. 9 is a diagram illustrating a pipe in a simultaneous delivery specification of a roller conveyor facility according to a second embodiment of the present invention. It is operation | movement explanatory drawing of the valve unit part in the sequential discharge | payout use of the roller conveyor equipment. It is the disassembled perspective view which showed Embodiment 3 of this invention and was seen from the upper direction of the valve unit part in roller conveyor equipment. It is a valve unit part of the roller conveyor equipment, (a) is a cross-sectional plan view of the integrated structure, (b) is a cross-sectional plan view of the sorting valve body.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Roller conveyor equipment 6 Roller 8 Conveyor conveyance surface 9 Conveyor conveyance path 10 Conveyor drive means 13 Motor 18 Endless rotating body 20 Unit base 25 Inner round hole (positioning part)
26 Rectangular hole (locking part)
27 Outside round hole (positioning part)
DESCRIPTION OF SYMBOLS 30 Accumulation unit 31 Elevating guide means 32 Elevating frame 33 Air actuator 34 Upper guide ring body 40 Brake unit 41 Elevating guide means 42 Elevating body 43 Air actuator 44 Brake member 50 Load detection means 54 Sensing roller 60 Valve support body 68 Opening / closing valve 69 Actuator 70 Valve unit 71 Receiving body 72 Body 73 Through hole 75 Round protrusion (positioned part)
76 Locked piece (locked part)
81 Switching valve body 82 Valve body 83 Receiving valve chamber 84A Accumulation side supply valve chamber 84B Brake side supply valve chamber 86 Valve shaft 88 Piston 89 Spring 90 Cylinder chamber 101 Joint body 104A First distribution path 104B Second distribution path 105 Round projection ( Positioned part)
111 Distributing valve body 112 Valve body 113 First low-pressure priority type shuttle valve 123 Second low-pressure priority type shuttle valve 144 Connector 145 Nut body 146 Tubular body 147 Bolt body 149 Electromagnetic switching valve 150 Main supply pipe 152 Supply pipe 152a branch supply pipe 156 sub-supply pipe 159 accumulator side tube 160 brake-side tube 162 branch supply pipe _Z 1 to Z _n zone A pressurized air (working fluid)

Claims (2)

Roller conveyor equipment for conveying articles across a plurality of zones, each zone having an accumulator unit that contacts and disconnects the conveyor drive means with respect to the roller group, and a contact and separation action with respect to the roller group A brake unit and a load detection means including an on-off valve are provided, and an inlet-side port of each on-off valve is connected to the main supply piping side of the working fluid, and an electromagnetic switching valve is provided in the most downstream zone. In addition, each zone except the most downstream zone is provided with a valve unit for reversibly acting the accumulator unit and the brake unit, and the accumulator unit and the brake unit disposed on the inner side of the accumulator unit are provided. Each has a pair of actuators on the front and rear sides and a pair of actuators in the brake unit. Spacing Chueta is set smaller than the distance between the pair of actuators in A queue Muyunitto, valve unit which is disposed inside side of the brake unit includes a receiving member connected to the main supply pipe of the working fluid, the receiving A switching valve body that reversibly supplies the working fluid from the body to the accumulation unit side and the brake unit side, and a joint body that distributes the working fluid from the switching valve body to the accumulation unit side and the brake unit side, It comprises a distribution valve body capable of supplying a working fluid to the switching valve body by opening an on-off valve in the same zone, and the joint body includes a first accumulator-side first through hole in a direction along the conveyor transport path. The distribution path and the second distribution path on the brake side are connected to the brake unit side with respect to the first distribution path. In each valve unit, the first distribution path is connected to the actuator of the accumulation unit in the same zone via the accumulator side tube, and the second distribution path is connected to the actuator in the same zone via the brake side tube. Connected to the actuator of the brake unit, the valve unit is integrated with the receiving body and the joint body arranged on both sides with the switching valve body in the middle, and the distributing valve body is superimposed on this integrated structure A protrusion is provided upright and an upwardly facing nut body is provided on the upper surface side of the receiving body, and the sorting valve body can be externally fitted to the protrusion from above. A tubular fitting body and a tubular body communicating with the nut body are provided, and in the communication state, the bolt body that is passed through the tubular body from above is the nut. A roller conveyor facility, characterized in that the distribution valve body is integrated with the integrated structure by being screwed to the body.   A pair of protrusions are erected on the upper surface side of the receiving body, and an upwardly facing nut body is provided between the two protrusions and at a position near one of the protrusions. A pair of cylindrical fitting bodies that can be externally fitted to the body are provided, and a pair of cylindrical bodies are provided between the two cylindrical fitting bodies. In either case, the nut body is configured to be fitted and positioned from above with respect to both protrusions, and when both the tubular bodies change the front and back of the sorting valve body, Are arranged so as to communicate selectively with each other, and in the communication state, the bolt body passed through the cylindrical body from above is screwed into the nut body, so that the front and back of the sorting valve body are changed and integrated. Integrated with a common connector in a double-stacked position superimposed on a chemical structure Capable to be composed roller conveyor equipment according to claim 1, wherein.

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