JP4778077B2 - Manifold solenoid valve - Google Patents

Description

  The present invention relates to a manifold solenoid valve in which a plurality of solenoid valves are assembled and attached.

  As a manifold solenoid valve, a plurality of solenoid valves are mounted on a manifold block in which a common air supply passage and exhaust passage are formed, and the air supply port and exhaust port of the solenoid valve are connected to the air supply passage and the exhaust flow respectively. A block type adapted to communicate with the passage, and a supply hole and an exhaust hole are formed in the main valve block of the solenoid valve. By stacking a plurality of solenoid valves, the supply hole and the exhaust hole of each main valve block Therefore, there is a stacking type in which a common air supply passage and exhaust passage are formed. Patent Document 1 describes the block type manifold solenoid valve described above.

JP-A-11-118053

  A manifold solenoid valve in which a plurality of solenoid valves are assembled and attached in this way is fixed to a support member using a screw member such as a bolt at the time of use, but the type of support member depends on the use form. There are various things.

  In addition, each of the assembled multiple solenoid valves may be inspected during maintenance, or if any of the solenoid valves fails, they may be replaced. There is a need.

  An object of the present invention is to make it possible to easily remove a solenoid valve during replacement or inspection of the solenoid valve.

The manifold solenoid valve according to the present invention includes a solenoid valve stack formed by stacking a plurality of solenoid valves having a main valve block in which an air supply hole and an exhaust hole are formed, and is disposed at both ends of the solenoid valve stack. wherein a respective air supply holes and the exhaust holes and the manifold solenoid valve having an end block air supply and exhaust ports are provided in communication with the, Rutotomoni is fixed to a mounting hole formed in the end block, the a first tie rod which passes through the receiving groove which is formed open to the bottom in the main valve block, fixed to a long hole formed in the end block Rutotomoni, said extend substantially perpendicular to the receiving groove a guide portion formed in the main valve block substantially coincides with the slot, and the said guide portion and the second tie rod extending through the engaging groove with a communicating portion for communicating to the bottom surface of said main valve block A, is characterized in that as the can disconnect the solenoid valve by displacing along the second the long hole by loosening the fastening rod.

  In the manifold solenoid valve of the present invention, the solenoid valve may be an indirectly operated solenoid valve having a pilot solenoid valve.

  According to the present invention, the solenoid valve is moved by shifting one fastening rod along the long hole as a loosened state without removing the two fastening rods screwed to the end blocks on both sides of the solenoid valve laminate. Can be easily removed from the end block, the solenoid valve can be easily replaced and inspected, and the manifold solenoid valve can be easily assembled.

It is a perspective view which shows an example of a manifold solenoid valve. It is a partially notched front view which shows an example of the fixed form with respect to the supporting member of a manifold block. It is a partially notched front view which shows another example of the fixed form with respect to the supporting member of a manifold block. It is a partially notched front view which shows another example of the fixed form with respect to the supporting member of a manifold block. It is a perspective view which shows the manifold solenoid valve which is one embodiment of this invention. FIG. 6 is a front view of FIG. 5 with the fastening rod removed. It is sectional drawing which follows the AA line in FIG.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. 1 to 4 show an example of a manifold electromagnetic valve, and the manifold electromagnetic valve shown in FIGS. 1 to 4 will be described as a related technique prior to describing the embodiment of the present invention.

  This manifold electromagnetic valve has a manifold block 11 and a plurality of electromagnetic valves 12 mounted thereon, and is a block type manifold electromagnetic valve. Each solenoid valve 12 has a main valve block 13 and a pilot portion 14, and two output ports 15 and 16 are provided on the upper surface of the main valve block 13. For example, as shown in Japanese Utility Model Laid-Open Nos. 7-16006 and 10-318424, the main valve provided in the main valve block 13 is moved in the axial direction by the operation of the pilot solenoid valve. It is an indirectly operated solenoid valve that is driven by

  The manifold block 11 has a common air supply passage 17 that communicates with an air supply port (not shown) formed in the valve hole of the main valve block of each solenoid valve 12 and a common air passage that communicates with an exhaust port (not shown). Exhaust flow paths 18 and 19 are formed, and each solenoid valve is a 5-port 2-position switching valve.

  Therefore, when the pilot solenoid valve in the pilot section 14 is energized, the air supply flow path 17 and one output port are in communication with each other, compressed air is supplied to the output port, and the compressed air flowing into the other output port is When the pilot solenoid valve is de-energized after being discharged to the exhaust passage, the air supply passage 17 and the other output port are in communication with each other, and compressed air is supplied to the output port.

  Each electromagnetic valve 12 is attached to a flat electromagnetic valve attachment surface 21 of the manifold block 11 by a screw member 20 attached to the main valve block 13, and the surface opposite to the electromagnetic valve attachment surface 21 is It is a fixed surface 22. The manifold block 11 is made of a light alloy such as an aluminum alloy, and has a cross-sectional shape shown in the figure by extrusion. The longitudinal direction of the manifold block 11 is perpendicular to the longitudinal direction of the solenoid valve 12, and the solenoid valve mounting surfaces 21 at both ends of the manifold block 11 are exposed to the outside.

  At both ends of the manifold block 11, screw member through holes 23 are formed that penetrate in the thickness direction from the solenoid valve mounting surface 21 to the opposite fixed surface 22. In FIG. 1, two screw member through holes 23 formed in one end portion of the manifold block 11 are shown, but two screw member through holes 23 are similarly formed in the other end portion of the manifold block 11. Is formed.

  FIG. 2 is a view showing a state in which the manifold block 11 on which a plurality of solenoid valves 12 are mounted is fastened to the support member 24a. The manifold block 11 is fastened to the support member 24a by screwing the screw member 25a into the screw hole. The head portion 26 a of each screw member 25 a is in contact with the electromagnetic valve mounting surface 21 of the manifold block 11. The screw member 25a may be screw-coupled to a nut disposed on the bottom surface of the support member 24a without being screw-coupled to the screw hole formed in the support member 24a.

  Two nut support grooves 27 are formed in the manifold block 11 in a longitudinal direction from one end surface to the other end surface thereof, and each nut support groove 27 communicates with the screw member through hole 23.

  FIG. 3 is a view showing a state in which the manifold block 11 on which a plurality of electromagnetic valves 12 are mounted is fastened to the support member 24b. A screw member 25b that penetrates a through hole formed in the support member 24b is formed in the nut support groove 27. The manifold block 11 is fastened to the support member 24b by being screwed to the attached nut 28a. The head portion 26b of each screw member 25b is in contact with the bottom surface of the support member 24b.

  The manifold block 11 is formed with two engagement grooves 29 extending in the longitudinal direction from one end surface to the other end surface, and each engagement groove 29 communicates with the nut support groove 27.

  FIG. 4 is a view showing a state in which the manifold block 11 on which a plurality of electromagnetic valves 12 are mounted is fastened to a rail-like support member 24c having a flange portion and having a U-shaped cross section, and this support member 24c. Is also called a DIN rail. In this case, the flange portion 30 of the support member 24c is engaged with the engagement groove 29, the screw member 25c is screwed to the nut 28b attached to the nut support groove 27, and the flange portion 30 of the support member 24c is tightened. Thus, the manifold block 11 is fastened to the support member 24c. The head 26c of each screw member 25c is in contact with the electromagnetic valve mounting surface 21 of the manifold block 11 in the case shown in FIG.

  Thus, when the manifold solenoid valve is used by forming the screw member through hole 23, the nut support groove 27, and the engagement groove 29 in the manifold block 11, the mounting form is shown in FIGS. 3 and one of the three types shown in FIG. 4 can be selected, and one type of manifold block 11 can correspond to three types of mounting forms.

  5 to 7 show a manifold solenoid valve according to an embodiment of the present invention. This manifold solenoid valve has a solenoid valve laminate 31 formed by laminating a plurality of solenoid valves 12, and end blocks 32 and 33 arranged at both ends of the solenoid valve laminate 31, and is a stacking type. Manifold solenoid valve. Each solenoid valve 12 has a main valve block 13 and a pilot portion 14 as in the solenoid valve shown in FIG. Two output ports 15 and 16 are provided on the end face of the main valve block 13, a pilot-actuated pilot solenoid valve is incorporated in the pilot section 14, and the main valve provided in the main valve block 13 is connected to the pilot solenoid valve. It is an indirectly operated solenoid valve that is driven in the axial direction by the operation of.

  As shown in FIG. 7, each main valve block 13 is formed with an air supply hole 34 and two exhaust holes 35 and 36, and the air supply hole 34 is formed to open to the valve hole of the main valve block 13. Each exhaust hole 35, 36 communicates with an exhaust port. By laminating the plurality of main valve blocks 13, a common air supply flow path is formed by the air supply holes 34, and two common exhaust flow paths are formed by the respective exhaust holes 35 and 36.

  An exhaust port 37 communicating with a common exhaust flow path formed by one exhaust hole is formed in the end block 32, and an exhaust port 38 communicating with a common exhaust flow path formed by the other exhaust hole is formed by the end block 33. Is formed. An air supply port 39 communicating with a common air supply passage formed by the air supply holes 34 is formed in each of the end blocks 32 and 33, and an air supply hose is connected to one of the air supply ports 39 in accordance with the use form. Can be done.

  Therefore, when the pilot solenoid valve in the pilot section 14 is energized, the air supply port 39 and one output port are in communication with each other, compressed air is supplied to the output port, and the compressed air flowing into the other output port is When the air is discharged to the exhaust passage and the pilot solenoid valve is de-energized, the air supply port 39 and the other output port are in communication with each other, and compressed air is supplied to the output port.

  As shown in FIG. 6, a circular mounting hole 41 and a long hole 42 are formed in the end block 32 so as to be separated from each other, and the long hole 42 extends in a direction substantially parallel to the longitudinal direction of the electromagnetic valve 12. Yes. A mounting hole 41 and a long hole 42 are formed at positions corresponding to the other end block 33.

  A first fastening rod 43 is fixed to the mounting holes 41 of both end blocks 32 and 33, and a second fastening rod 44 is fixed to the long hole 42. All the solenoid valves 12 are fastened by the two fastening rods 43 and 44 at the respective main valve block 13 portions. Each of the fastening rods 43 and 44 is composed of a hexagon socket head bolt and a nut that is screwed to the tip of the bolt.

  As shown in FIG. 7, each main valve block 13 is formed with a receiving groove 45 corresponding to the mounting hole 41, and this receiving groove 45 extends in the height direction of the main valve block 13 and has a bottom surface. Is open. Further, an engagement groove 46 is formed in the main valve block 13 so as to correspond to the long hole 42, and the engagement groove 46 extends in a direction substantially perpendicular to the housing groove 45 and substantially coincides with the long hole 42. The guide portion 46a has an L-shape having a guide portion 46a and a communication portion 46b for communicating the tip of the guide portion 46a with the bottom surface of the main valve block 13.

  Therefore, in order to assemble the manifold solenoid valve shown in FIG. 7, the fastening rods 43 are fitted into the respective mounting holes 41 with the two end blocks 32 and 33 being spaced apart from each other by a predetermined distance. The rod 44 is attached to the long hole 42, and the fastening rod 44 is shifted to the tip side of the long hole 42. Under this state, the solenoid valve 12 is pressed so that the fastening rod 43 enters the receiving groove 45 of each solenoid valve 12 and the fastening rod 44 enters the communication portion 46 b of the engagement groove 46. Thereafter, the fastening rod 44 is shifted along the elongated hole 42 to the opposite side, and the fastening rods 43 and 44 are screwed together. Thereby, the manifold solenoid valve which consists of the solenoid valve laminated body 31 and the two end blocks 32 and 33 can be assembled easily.

  On the other hand, when removing at least one of the plurality of solenoid valves 12, contrary to the above, after loosening the screws of the respective fastening rods 43, 44, the fastening rod 44 is moved to the distal end side of the long hole 42. Move and move. By this shifting movement, the fastening rod 44 is displaced to the position of the communication portion 46b. When the electromagnetic valve 12 is lifted in this state, the electromagnetic valve 12 can be easily removed.

  It goes without saying that the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the invention.

  For example, although the illustrated manifold solenoid valve is a 5-port 2-position switching valve, the number of ports is not limited to this and may be a 3-port switching valve.

11 Manifold block 12 Solenoid valve 13 Main valve block 14 Pilot section 15, 16 Output port 17 Air supply flow path 18, 19 Exhaust flow path 21 Solenoid valve mounting surface 22 Fixing surface 23 Screw member through holes 24a-24c Support members 25a-25c Screw Member 27 Nut support groove 28a, 28b Nut 29 Engaging groove 31 Solenoid valve stack 32, 33 End block 34 Air supply holes 35, 36 Exhaust holes 37, 38 Exhaust port 39 Air supply port 41 Mounting hole 42 Long hole 43 Fastening rod ( First fastening rod)
44 Fastening rod (second fastening rod)
45 Housing groove 46 Engaging groove

Claims (2)

A solenoid valve laminate formed by laminating a plurality of solenoid valves having a main valve block in which an air supply hole and an exhaust hole are formed, and the respective air supply holes and exhaust holes disposed at both ends of the solenoid valve laminate. A manifold solenoid valve having an air supply port communicating with the gas and an end block provided with an exhaust port,
A first tie rod passing through the fixed to the mounting hole formed in the end block Rutotomoni, accommodating groove formed open to the bottom in said main valve block,
Fixed to said elongated hole formed in the end block Rutotomoni, guide portion formed on said main valve blocks extend substantially perpendicular to the receiving groove substantially coincides with the long hole, and the guide portion and the main valve A second fastening rod penetrating through the engaging groove provided with a communicating portion communicating with the bottom surface of the block ;
A manifold solenoid valve characterized in that the solenoid valve can be removed by loosening the second fastening rod and shifting it along the elongated hole. 2. The manifold solenoid valve according to claim 1, wherein the solenoid valve is an indirectly operated solenoid valve having a pilot solenoid valve.

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