JPH0522967U - Multilayer fluid control element - Google Patents

Abstract

(57) [Summary] [Purpose] This is a laminated fluid control element that is selectively stacked on the manifold. If it is mounted in the wrong orientation when stacking, it can be discriminated from the outside. [Structure] A concave portion 5A is vertically continuous from the outside on one side surface 5 orthogonal to the upper surface 3 and the lower surface 3A through which the respective flow paths P, A, B, R1, and R2 of the main body 2 are standardized and opened. Then, the recess is provided between the upper surface 3 and the lower surface 3A.
As a result, when the upper surface 3 and the lower surface 3A are attached to each other while being stacked, the one side surface 5 having the concave portion 5A is opposed to the one side surface having the concave portion of another normally mounted laminated fluid control element. It is located on the side and can be discriminated from the outside.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a laminated fluid control element that is selectively laminated on a manifold.

[0002]

[Prior Art]

 Conventionally, as this type of laminated fluid control element, there is one as disclosed in Japanese Utility Model Publication No. 1-34721 filed by the present applicant. This is an operation control circuit in which a check valve, a flow control valve, a pressure reducing valve, and a pressure switch, which are layered fluid control elements, are selectively stacked on the manifold, and an electromagnetic directional control valve is installed at the top of the stack. Is made up of. Each laminated fluid control element is provided with a main body in a substantially rectangular parallelepiped polyhedron shape, a supply flow passage for supplying pressure fluid to the upper and lower surfaces of the main body, and two load flow passages connected to the fluid actuator side. The discharge channel connected to the low-voltage side is standardized and provided with a through opening.

[0003]

[Problems to be solved by the device]

 However, in the laminated fluid control element having such a configuration, one side surface orthogonal to the upper and lower surfaces where each flow path of the main body is opened and the other side surface facing this one side surface are provided in the same flat shape, When a person stacks each laminated fluid control element, even if one laminated fluid control element is mistakenly mounted with the upper surface and the lower surface reversed, it cannot be distinguished from the outside and a normal operation control circuit may not be constructed. There was a problem with sex. Therefore, attach a nameplate indicating the model, function, etc. of the laminated fluid control element to one specified side of the main body, and mount the laminated fluid control element in the wrong orientation with the nameplate. I tried to determine, but was still not satisfied. The present invention solves such a problem, and when it is mounted in the wrong direction when stacking, it can be clearly discerned from the outside, and a normal operation control circuit can be reliably constructed. Is provided.

[0004]

Therefore, according to the present invention, a supply flow passage for supplying a pressure fluid, two load flow passages connected to the fluid actuator side, and a discharge flow passage connected to the low pressure side are formed into a polyhedron shape. The upper and lower surfaces of the main body are standardized and provided with through openings, and at least one side surface of the main body orthogonal to the upper and lower surfaces is recessed continuously in the vertical direction so that it can be visually recognized from the outside. The name plate is attached to the inside of the recess to indicate the model and function of the laminated fluid control element.

[0005]

[Action]

 In the structure of the present invention, when the stacked fluid control element is selectively stacked on the manifold, if the operator mistakenly mounts one stacked fluid control element with the upper surface and the lower surface reversed, The reverse side of the laminated fluid control element has one side with a concave portion that is visible from the outside of the main body and the other side of the normally installed laminated fluid control element that faces the concave portion. Located on the side. For this reason, if the stacked fluid control elements are mounted in the wrong orientation when they are stacked, they can be discerned from the outside at a glance and a normal operation control circuit can be surely constructed.

[0006]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. In FIG. 1, reference numeral 1 denotes a flow control valve as a laminated fluid control element. Reference numeral 2 denotes a main body of the flow control valve 1, which is provided by casting in a substantially rectangular parallelepiped polyhedron shape. P is a supply flow path for supplying a pressure fluid, A and B are two load flow paths connected to the fluid actuator side, and R1 and R2 are discharge flow paths connected to the low pressure side. And the lower surface 3A are standardized and provided with through openings. Reference numeral 4 is a bolt hole through which a bolt is inserted, and four bolt holes are standardized on the upper surface 3 and the lower surface 3A of the main body 2 and are penetratingly opened. The upper surface 3, the lower surface 3A, the flow paths P, A, B, R1, R2, and the bolt holes 4 are formed by machining after the body 2 is cast. Reference numeral 5A denotes a concave portion formed on one side surface 5 orthogonal to the upper surface 3 and the lower surface 3A of the main body 2, and the central portion of the one side surface 5 is continuously recessed in the vertical direction so as to be visible from the outside, and is provided between the upper surface 3 and the lower surface 3A. The bottom surface of the recess 5A has a flat shape. 6A is a concave portion formed on the other side surface 6 facing the one side surface 5 of the main body 2, and similarly to the concave portion 5A, the central portion of the other side surface 6 is continuously depressed vertically to form the upper surface 3 And the lower surface 3A. The width L1 of the recess 5A is set shorter than the width L2 of the recess 6A so that the recess 5A and the recess 6A can be easily discriminated from each other. Reference numeral 7 is a name plate indicating items such as the model and function of the flow control valve 1, which is attached to the bottom surface of the recess 5A by two rivet members 8. The plate thickness T of the nameplate 7 is set smaller than the recess depth L of the recess 5A so that the head of the rivet member 8 is slightly protruded from the one side surface 5 with the nameplate 7 attached. Reference numeral 9 denotes an adjusting member for adjusting the flow rate setting of the flow rate control valve 1, which is provided on the main body 2 so as to be rotatable and projectable.

FIG. 2 shows a laminated fluid control device that constitutes an operation control circuit by using the flow control valve 1 of FIG. 1, and 10 is a manifold, which is a plurality of flow passages 10A, 10B through which fluid flows. 10C and 10D are formed, and a mounting seat is formed on the upper surface 10E. Reference numeral 11 is a check valve as a laminated fluid control element, 12 is a pressure reducing valve as a laminated fluid control element, and 13 is a pressure switch as a laminated fluid control element. It is laminated on the mounting seat of and the direction switching valve 14 for electromagnetic operation is installed on the uppermost stage. The check valve 11, the pressure reducing valve 12, and the pressure switch 13 are provided with main bodies 15, 16, 17 having the same shape as the main body 2 of the flow control valve 1, and the one side surfaces 18, 19, 20 of the main bodies 15, 16, 17 are provided. Is provided with recesses 18A, 19A, 20A having the same shape as the recess 5A of the flow control valve 1. In the recesses 18A, 19A, 20A, like the flow control valve 1, a nameplate 21 indicating items such as model and function is displayed. , 22, 23 are attached. Further, a concave portion having the same shape as the concave portion 6A of the flow rate control valve 1 shown in FIG. 1 is provided on the other side surface (not shown) facing the one side surface 18, 19, 20. 1. Each of the flow paths P, A, B, R1 and R2 and the bolt holes 4 shown in FIG. 24 is a bolt member, which is fixed on the manifold 10 from the direction switching valve 14 side so as to fix the check valve 11, the flow control valve 1, the pressure reducing valve 12, the pressure switch 13 and the direction switching valve 14 installed at the uppermost stage. It is provided by being screwed into the manifold 10 through the above-mentioned bolt holes.

FIG. 3 shows an operation control circuit of the laminated fluid control system of FIG. 2, in which the check valve 11, the flow control valve 1, the pressure reducing valve 12, the pressure switch 13, and the flow passages P and A of the direction switching valve 14 are shown. , B, R1, R2 are connected to each other, the supply flow path P is connected to the pressure source P1 via the flow path 10A of the manifold 10, and the two load flow paths A and B are connected via the flow paths 10B and 10C. It is connected to a fluid cylinder 25 as a fluid actuator, and the discharge flow paths R1 and R2 are connected to a tank T1 on the low pressure side via a flow path 10D. The check valve 11 has a function of allowing the pressure fluid in the supply passage P to flow from the pressure source P1 side to the direction switching valve 14 side and blocking the flow in the opposite direction. The flow rate control valve 1 has the function of controlling the flow rate of the load flow path B flowing from the fluid cylinder 25 side to the direction switching valve 14 side and making the flow in the opposite direction free flow. The pressure reducing valve 12 has a function of controlling the pressure fluid flowing through the supply passage P to a set pressure. The pressure switch 13 has a function of emitting an electric signal when the pressure of the pressure fluid flowing through the load passage A reaches a set value. The directional control valve 14 is in a neutral position that shuts off the passages P, A, B, R1, and R2, and connects the supply passage P and the load passage A, and the load passage B and the discharge passage R2. It has a switching position and a second switching position that communicates between the supply flow path P and the load flow path B and between the load flow path A and the discharge flow path R1, and has a function of enabling switching to each position by electromagnetic operation. ..

Next, the operation of this configuration will be described. FIG. 3 shows the laminated fluid control device in a non-operating state, in which the directional control valve 14 is in the neutral position and shuts off the passages P, A, B, R1 and R2, and the fluid cylinder 25 is stopped. There is. Now, when the direction switching valve 14 is switched to the first switching position by electromagnetic operation, the pressure fluid supplied from the pressure source P1 to the supply passage P is reduced to the set pressure of the pressure reducing valve 12 via the check valve 11. The fluid is controlled to flow through the load flow path A into the fluid cylinder 25, and the fluid discharged from the fluid cylinder 25 to the load flow path B is flow controlled by the flow rate control valve 1 to flow through the discharge flow path R2 to the tank T1. The fluid cylinder 25 is discharged, and the speed thereof is adjusted based on the flow rate control, and the fluid cylinder 25 operates rightward in the drawing. At this time, an electric signal is emitted when the pressure of the pressure liquid flowing through the load passage A rises to the set value of the pressure switch 13 due to the load applied to the fluid cylinder 25 from the outside. When the fluid cylinder 25 operates to the right end, the direction switching valve 14 is returned to the neutral position, and the fluid cylinder 25 stops.

From this state, when the direction switching valve 14 is switched to the second switching position by the electromagnetic operation, the supply flow path P and the load flow path B are communicated with each other, and the load flow path A and the discharge flow path R1 are communicated with each other. The fluid cylinder 25 operates to the left in the drawing without adjusting the speed. At this time, the pressure of the fluid flowing through the load flow path A drops and does not reach the set value of the pressure switch 13, so that no signal is emitted. Then, when the fluid cylinder 25 operates to the left end, the directional control valve 14 is returned to the neutral position, and the fluid cylinder 25 stops in the illustrated state.

When stacking the check valve 11, the flow control valve 1, the pressure reducing valve 12, and the pressure switch 13 on the manifold 10 in the laminated fluid control device that constitutes such an operation control circuit, an operator makes a mistake. For example, when the flow control valve 1 is mounted with the upper surface 3 and the lower surface 3A reversed, the flow control valve 1 has a check valve 11, a pressure reducing valve 12, and a pressure switch 13 in which one side surface 5 provided with a recess 5A is normally mounted. Is located on the side of the other side surface facing the one side surface 18, 19, 20 provided with the respective recesses 18A, 19A, 20A, and on the side of the one side surface 18, 19, 20 the width L2 from the recesses 18A, 19A, 20A. Since the other side surface 6 with the recessed portion 6A having a longer length is positioned, it can be clearly discerned from the outside if it is mounted in the wrong orientation when stacking, and a normal operation control circuit can be surely constructed. It Also, since the nameplate 7 is installed in the recess 5A provided on the one side surface 5, it is possible to prevent the nameplate 7 from being damaged when the operator handles the flow control valve 1, and the nameplate 7 can be displayed for a long time in good condition. Can be maintained. Furthermore, by providing the concave portion 5A and the concave portion 6A on the one side surface 5 and the other side surface 6 of the main body 2, it is possible to reduce the weight of the portion corresponding to the concave portion 5A and the concave portion 6A of the main body 2 as compared with the conventional element. The overall weight can be reduced. Furthermore, the concave portion 5A, the concave portion 6A and the name plate 7 can more reliably determine the mounting of the flow control valve 1 in the wrong direction. Furthermore, since the recess 5A and the recess 6A are formed by casting the main body 2, it is not necessary to form the recess 5A and the recess 6A specially by machining after the main body 2 is cast. It is possible to satisfactorily suppress the increase in the number of processing steps associated with the provision of the.

In the embodiment, the concave portions 5A and 6A are formed on the one side surface 5 and the other side surface 6 of the main body 2 in order to further reduce the weight. It is only necessary to form a concave portion on the side surface, or a concave portion may be formed on the side surface of the direction switching valve 14.

[0013]

[Effect of the device]

 As described above, according to the present invention, the laminated fluid control element is selectively laminated on the manifold having a plurality of passages through which the fluid flows, and the directional control valve is installed at the uppermost stage to operate. A laminated fluid control element in a laminated fluid control device that constitutes a control circuit, in which a supply passage for supplying a pressure fluid, two load passages connected to the fluid actuator side, and an exhaust flow connected to the low pressure side. The upper and lower surfaces of the main body of the polyhedron shape are standardized and provided with through-openings, and at least one side surface of the main body orthogonal to the upper and lower surfaces is formed with a concave portion continuously visible in the vertical direction from the outside. It is installed between the upper surface and the lower surface, and a nameplate indicating items such as the type and function of the laminated fluid control element is installed in this recess. You can distinguish it at a glance, The normally operating control circuit can be reliably configured definitely. Also, since the nameplate is installed in the recess provided on at least one side of the main body, it is possible to prevent the nameplate from being damaged when an operator handles the laminated fluid control element, and the nameplate display can be displayed for a long time. It can be maintained well. Further, by providing the concave portion on at least one side surface of the main body, the weight of the portion corresponding to the concave portion of the main body can be reduced and the weight of the entire element can be reduced as compared with the conventional element. .. Furthermore, there is an effect that the mounting of the laminated fluid control element in the wrong direction can be more surely determined by the recess and the name plate.

[Brief description of drawings]

FIG. 1 is a perspective view of a flow control valve as a laminated fluid control element according to an embodiment of the present invention.

FIG. 2 is a perspective view of a laminated fluid control device in which laminated fluid control elements of one embodiment are laminated.

FIG. 3 is an operation control circuit diagram of the laminated fluid control system shown in FIG.

[Explanation of symbols]

 1 flow control valve (laminated fluid control element) 2, 15, 16, 17 main body 3 upper surface 3A lower surface 5, 18, 19, 20 one side surface 5A, 18A, 19A, 20A recessed portion 7, 21, 22, 23 nameplate 10 manifold 10A, 10B, 10C, 10D flow path 11 Check valve (multilayer fluid control element) 12 Pressure reducing valve (multilayer fluid control element) 13 Pressure switch (multilayer fluid control element) 14 Directional switching valve P Supply flow path A, B load flow path R1, R2 discharge flow path

Claims (1)

[Scope of utility model registration request] 1. An operation control circuit is constructed by selectively laminating a laminated fluid control element on a manifold having a plurality of passages through which a fluid flows, and installing a directional control valve at the uppermost stage thereof. A laminated fluid control element in a laminated fluid control device, wherein a supply flow passage for supplying a pressure fluid, two load flow passages connected to a fluid actuator side, and a discharge flow passage connected to a low pressure side have a polyhedral shape. It is standardized on the upper and lower surfaces of the main body and provided with through openings, and at least one side surface of the main body orthogonal to the upper and lower surfaces is recessed vertically in a continuous manner so that it can be seen from the outside and extends between the upper and lower surfaces. A laminated fluid control element is provided in which a nameplate indicating the type, function, etc. of the laminated fluid control element is provided in the recess.