KR20040060694A - Check velve assembly of pump for water jet loom - Google Patents

Abstract

PURPOSE: A check valve assembly for a pump of a water jet loom is characterized by repeating bending and returning of a valve plate to open and close an inlet hole, selecting feed or interception of water, preventing deterioration of durability and quality, reducing a production cost, increasing efficiency of weaving, increasing efficiency of the loom and increasing quality of the loom. CONSTITUTION: A check valve assembly for a pump of a water jet loom comprises: an inlet body(102) containing an inlet hole(101) supplying water; an outlet body(104) which is connected with the inlet body(102), containing an outlet hole(103) supplying the water to a nozzle; a check valve(110) which is installed between the inlet hole(101) and the outlet hole(103), processing feed of the water smoothly and intercepting flowing backward; a valve plate(111) which is adhered closely to a bottom of the inlet body(102), opening the inlet body(102) with pressure of the water when the water is supplied and closing the inlet hole(101) by its own elasticity and the backed water when the water is intercepted; an on-off guide(120) which is set on a lower part of the valve plate(111), supporting the valve plate(111) to prevent the valve plate(111) from transforming and processing the backed water smoothly to minimize resistance; a bridge(112) which is formed at the rear of the valve plate(111), having thin plate type; an intercepting plate(113) which is formed on the fore part of the bridge(112), having diameter being bigger than diameter of the inlet hole(101) to intercept the inlet hole(101); a rotation preventing protrusion(115) formed at the rear of the bridge(112) and applied to a rotation preventing hole formed on the inlet body(102) or the outlet body(104); a fix hole(116) formed on the front of the rotation preventing protrusion(115) and fixed by a fixing protrusion and a protrusion hole formed on the inlet body(102) or the outlet body(104); and a hook protrusion(105) and a set ring-shaped prominence(106) adhering the inlet body(102) and the outlet body(104). The on-off guide(120) comprises: a supporting surface(121) of the intercepting plate(113) extended-protruded in one side of the outlet body(104) and formed downward slopingly at proper interval(L) from the other side of the outlet body(104); and a streamline guide(122) formed on a bottom of the supporting surface(121) not to receive resistance of the water.

Description

Check velve assembly of pump for water jet loom}

The present invention relates to a pump check valve assembly for a water jet loom, and more particularly, to an improvement in a check valve for supplying high pressure water to a nozzle for discharging the weft and blocking backflow. .

Water jet weaving machine is a kind of weaving machine for weaving textiles. It is a product of high productivity because it uses water that is spouted at high speed by using a hydraulic pump and a nozzle to supply the weft (weft) in the direction perpendicular to the inclination. It is used a lot for improvement and noise reduction.

The check valve assembly 100 used in the water jet loom as described above is mounted on the inlet portion 32 and the outlet portion 33 of the plunger 31 provided in the pump 30 as shown in FIG. When the plunger 31 is inhaled, the inlet part 32 is opened and the check valve assembly 100 of the outlet part 33 is blocked, and the plunger 31 is compressed to supply the weft yarn 34 ( When supplying water to the 35, the outlet part 33 is opened and the check valve assembly 100 of the inlet part 32 is blocked.

Conventionally, a check valve assembly for a jet jet loom has been used for this purpose, and a representative example is described below with reference to FIG. 8.

The check valve assembly 1 to which the prior art is applied combines an inlet body 3 in which an inlet hole 2 into which water is introduced and an outlet body 6 in which a plurality of outlet holes 4 and 5 are formed. It is configured by.

The inlet hole (2) is formed in the operating hole (7) formed at the intermediate point where the inlet body (3) and the outlet body (6) are coupled to the water sprayed back with water sprayed by the steel ball type (8) built-in By opening and closing the valve, water is supplied to the nozzle and the reverse flow is blocked.

In the prior art as described above, the water is supplied to the inlet hole and the outlet hole under high pressure, and the ball moves while flowing backward, thereby reducing the wear and tear of the ball, as well as the opening and closing responsiveness due to the weight of the ball. Due to the weakening of durability due to the wear of the outlet hole, the early replacement of the check valve assembly is inevitable, resulting in a problem that productivity is reduced due to waste of unnecessary materials and idle.

In particular, the outlet hole has a relatively small cross-sectional area as compared to the wide inlet hole in cross-section, which causes many problems such as the inability to easily supply high-pressure water to the nozzle for discharging the weft.

Accordingly, the present invention has been invented to solve the problems as described above to improve the check valve assembly to supply a large amount of high pressure water to the nozzle for discharging the weft to maintain a constant water delivery distance and the spread of water It aims to contribute to cost savings by increasing the loom efficiency and increasing the quality of looms and prolonging the replacement cycle (lifetime nap) by increasing the RPM of the loom by minimizing and providing fast response.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a block diagram illustrating a pump of a wort jet loom for explaining a check valve assembly for a wort jet loom of the present invention.

Figure 2 is a perspective view showing a check valve assembly for a pump of a water jet loom to which the technique of the present invention is applied.

3 is an exploded perspective view showing a check valve assembly for a pump of a water jet loom to which the technique of the present invention is applied.

Figure 4 is a cross-sectional view showing a check valve assembly for a pump of the water jet loom to which the technique of the present invention is applied.

FIG. 5 is a cross-sectional view showing another example of a pump check valve assembly of a water jet loom taken along the line BB of FIG. 4. FIG.

FIG. 6 is a bottom view showing another example of the pump check valve assembly of the water jet loom viewed from the direction C of FIG. 4; FIG.

7 is a cross-sectional view of a check valve assembly for a pump of a water jet loom showing still another example of the present invention.

8 is a cross-sectional view showing a check valve assembly for a pump of a water jet loom to which the prior art is applied.

* Description of the symbols used in the minor parts of the drawings *

100; Check Valve Assembly

101; Inlet hole

102; Inlet Body

103; Outlet hall

104; Outlet Body

110; Check valve

111; Valve plate

113; Blocking plate

120; Dog, Lung Guide

121; Block plate base

122; guide

Hereinafter, with reference to the accompanying drawings will be described the configuration and operation of the preferred embodiment of the present invention for achieving the above object.

1 is a block diagram showing a pump of a water jet loom for explaining the pump check valve assembly of the water jet loom of the present invention, Figure 2 shows a pump check valve assembly of a water jet loom to which the technique of the present invention is applied. 3 is an exploded perspective view showing a check valve assembly for a water jet loom to which the technology of the present invention is applied. FIG. 4 is a cross-sectional view showing a pump check valve assembly for a water jet loom to which the technology of the present invention is applied. 5 is a cross-sectional view showing another example of a pump check valve assembly of a water jet loom taken along the line B-B in FIG. 4, and FIG. 6 is a pump check of the water jet loom viewed from the direction C of FIG. FIG. 7 is a cross-sectional view of a pump check valve assembly of a water jet loom showing still another example of the valve assembly. FIG.

It is mounted on the inlet part 32 and the outlet part 33 of the plunger 31 provided in the pump 30 mounted on the water jet loom, respectively, and opens and closes during the suction and compression operation of the plunger 31 and the nozzle 35. It is the check valve assembly 100 to supply water to the) and block backflow.

In the present invention, by improving the structure of the check valve assembly 100 is characterized in that the life and durability are improved.

The check valve assembly 100 of the present invention for this purpose forms an inlet body 102 for forming the inlet hole 101 for supplying water and an outlet hole 103 for supplying the supplied water to the nozzle 35. One outlet body 104 is combined.

The combination of the inlet body 102 and the outlet body 104 can be made by the engagement of the engaging protrusion 105 and the restoring jaw 106 formed on the edge, the inlet hole 101 and the outlet hole 103 The check valve 110 is further provided between the phases so as to smoothly supply water and block back flow.

The check valve 110 is in close contact with the bottom surface of the inlet body 102 is opened by the pressure of the water when supplied, and when shut off the valve plate 111 for closing the inlet hole 101 by the self-elasticity and the countercurrent water It is provided.

The valve plate 111 is a plate-like member of a thin plate has a constant elasticity, free bendability, has a bridge 112 in the rear and the diameter of the inlet hole 101 to easily block the inlet hole 101 on the side It consists of the blocking plate 113 which has diameter D1 slightly larger than (D).

At the rear end of the bridge 112 is formed an anti-rotation protrusion 115 that can be accommodated in the anti-rotation groove 114 formed in the inlet body 102 or the outlet body 104, the front of the fixing hole ( 116 is formed to be fixed by the fixing protrusion 117 and the projection groove 118 formed in the inlet body 102 or the outlet body 104.

Of course, the fixing protrusion 117 and the projection groove 118 will help to fix the inlet body 102 and the outlet body 104 together with the locking projection 105 and the toothed jaw 106.

The water flowing back smoothly while preventing the deformation of the blocking plate 113 to be opened below the blocking plate 113, while flowing against the edge of the blocking plate 113 while minimizing resistance. The opening and closing guide 120 to help the return of 113) is further formed.

The opening and closing guide 120 extends from one side of the outlet body 104 to have a proper distance (L) from the outlet body 104 on the other side, so that water can flow to the center and both sides while being smooth. While forming a round downward blocking plate support surface 121 having a round.

The bottom surface of the blocking plate support surface 121 is formed by integrally forming a streamlined guide 122 so that water flowing and flowing backward does not receive resistance.

As another example of the blocking plate 113 may be accommodated in the blocking plate groove 125 formed integrally with the bottom surface of the inlet body 102, as shown in Figure 5, the opening, closing guide ( The outlet holes 103 may be formed on both sides by connecting the 120 without a gap L. As shown in FIG.

The present invention as described above,

As shown in FIG. 1, the inlet part 32 and the outlet part 33 of the plunger 31 provided in the pump 30 are respectively mounted, and the plunger 31 is mounted to the inlet part 32 when the suction operation is performed. The check valve 110 of the check valve assembly 100 is opened, and the check valve 110 of the check valve assembly 100 mounted on the outlet part 33 is blocked.

When the plunger 31 is compressed to supply water to the nozzle 35 for supplying the weft thread 34, the check valve 110 of the check valve assembly 100 mounted on the outlet part 33 is opened and the inlet is opened. The check valve 110 of the check valve assembly 100 mounted on the unit 32 may send out the weft by repeating the blocked operation.

Looking at the process of opening and closing the check valve 110 of the check valve assembly 100 as described above in more detail,

When high pressure water is supplied to the inlet hole 101 formed in the inlet body 102, when the pressure of the water is transferred to the valve plate 111, the valve plate 111 is pushed in to push and enter the valve plate 111. do.

At this time, the pushed valve plate 111 is in close contact with the blocking plate support surface 121 of the opening and closing guide 120 formed integrally with the outlet body 104, so that the water passes through the inlet hole 101 and the outlet. It is supplied to the nozzle 35 through the hole 103.

As described above, when the weft is discharged by the high pressure water supplied to the water, the water is blocked from being continuously supplied and the backflow is prevented.

At this time, the valve plate 111 in close contact with the blocking plate support surface 121 of the opening and closing guide 120 is returned by its elasticity as the pressure of the water disappears, and the water flowing back partially flows in the valve plate ( 111 is assisted by the return to close to the bottom of the inlet hole 101 is blocked.

Particularly, in the case of water flowing back from the outlet hole 103 toward the inlet hole 101, a streamlined guide 122 formed on the bottom surface of the blocking plate support surface 121 constituting the opening and closing guide 120 is provided. Of course, the valve plate 111 is pressurized by the bottom edge of the blocking plate 113 of the valve plate 111 which is in close contact with the blocking plate support surface 121 after being flowed back along the guide 122. It will be natural to help return.

As described above, the opening and closing of the inlet hole 101 is repeatedly performed as a result of repeated deformation of the valve plate 111 to supply and block water from the nozzle 35, and friction with water is limited to the blocking plate. By doing so, it is possible to solve the problem of shortening the exchange cycle due to friction and wear or being affected by durability.

The present invention as described above, by repeatedly bending and returning the valve plate having elasticity by opening and closing the inlet hole to select the supply and shutoff of water to the nozzle to increase the efficiency of the loom with quick response, causing the wear It prevents durability and quality deterioration, which can ensure smooth operation even in long-term use, which can reduce cost, increase the efficiency of weaving, and contribute to the improvement of loom quality.

Claims (3)

It is mounted on the inlet part 32 and the outlet part 33 of the plunger 31 provided in the pump 30 mounted on the water jet loom, respectively, and opens and closes during the suction and compression operation of the plunger 31 and the nozzle 35. In the configuration of the check valve assembly 100 for supplying water to and blocking the back flow; The check valve assembly 100 includes an inlet body 102 formed by forming an inlet hole 101 for supplying water; An outlet body 104 coupled to the inlet body 102 to form an outlet hole 103 for supplying the supplied water to the nozzle 35; A check valve (110) provided between the inlet hole (101) and the outlet hole (103) to smoothly supply water and block back flow; The check valve 110 is in close contact with the bottom surface of the inlet body 102, the valve plate is provided to open by the pressure of the water at the time of supply and to close the inlet hole 101 by the self-elasticity and backflow when blocked ( 111); The opening and closing guide 120 is provided below the valve plate 111 so as to stably support the valve plate 111 so as to prevent deformation of the valve plate 111 so that the flowing water flows smoothly to minimize the resistance. Construct; The valve plate 111 is a bridge (112) formed rearward by a plate-like member of a thin plate having elasticity; A blocking plate 113 formed at a diameter slightly larger than the diameter of the inlet hole 101 so as to easily block the inlet hole 101 on the side of the bridge 112; An anti-rotation protrusion 115 formed at the rear end of the bridge 112 to be accommodated in the anti-rotation groove 114 formed in the inlet body 102 or the outlet body 104; A fixing hole 116 formed to be fixed by the fixing protrusion 117 and the protrusion groove 118 formed in the inlet body 102 or the outlet body 104 in front of the anti-rotation protrusion 115. and; The opening and closing guide 120 extends from one side of the outlet body 104 to protrude from the inner side of the outlet body 104, and has a proper distance (L) from the other side of the outlet body 104. 121); The bottom surface of the blocking plate support surface 121 includes a streamlined guide 122 formed integrally so that water is not subjected to resistance; Check valve for water jet loom, characterized in that it comprises a locking projection 105 and the restoring jaw 106 to be coupled to the edge by the coupling means of the inlet body 102 and the outlet body 104 assembly. The method of claim 1; The blocking plate 113 is a pump check valve assembly for a water jet loom, characterized in that accommodated in the blocking plate groove 125 is formed integrally on the bottom surface of the inlet body (102). The method of claim 1; The opening and closing guide 120 is a pump check valve assembly for a water jet loom, characterized in that it is integral with the outlet body 104 without a gap (L) to have an outlet hole (103) on both sides.