JPH0528453U - Discharge device - Google Patents

Abstract

(57) [Summary] [Purpose] In a discharge device for coating a discharge target on a discharge target, to prevent liquid dripping of the discharge target and prevent contamination of the discharge target. Further, the structure is simplified, and the assembling, disassembling, cleaning work and the like can be easily performed. [Structure] A cylinder 6 is provided at the upper end of the container 1 for the discharge product 2.
And the piston 10 of this cylinder 6
Connect rod 15 to. Then, the tip end portion of the rod 15 is inserted into the outflow port 3 of the storage container 1 via the circulation interval 20 of the discharged substance 2. Further, the valve body 22 for controlling the discharge of the outflow port 3 is inserted separately from the rod 15 so as to be separable. The tip of the rod 15 can press the valve body 22 toward the discharge port 26, and the valve body 22 can be pressed and sealed against the valve seat 25 from the discharge port 26 direction.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a discharge device for applying a discharge material such as an adhesive, a paint, a cream solder, and a solvent to a discharge target object.

[0002]

[Prior Art]

 2. Description of the Related Art Conventionally, as a discharge device for applying a discharge material such as an adhesive, a paint, a cream solder, and a solvent to a discharge target object, a method of controlling the discharge material with a needle valve is known. In the discharge device provided with this needle valve, the needle valve is formed on the upstream side of the valve seat, and the needle valve is pushed down in the direction of discharge of discharged matter to close the valve. For this reason, when the valve is closed, the discharge substance in the nozzle is pressed toward the discharge port to easily cause liquid dripping, and the discharge target portion is contaminated.

Further, in order to solve the above-mentioned drawbacks, as in the method described in Japanese Patent Publication No. 53-47508, a valve element for controlling the discharge is formed in the nozzle downstream of the valve seat, and the flow of the discharge is controlled. It has been proposed that the valve body be closed by pulling it up in the direction opposite to the exit direction. This method has the advantage of good drainage because the discharged matter is drawn into the nozzle together with the valve body when the valve body is closed.

However, according to this method, the rod for operating the valve element and the valve element are integrally connected in a state of being inserted into the valve seat, so that the structure is complicated. Therefore, when cleaning or maintaining the inside, there is a drawback that assembly, disassembly, and cleaning work are troublesome.

[0005]

[Problems to be solved by the device]

 The present invention is intended to solve the above-mentioned problems, and in an ejecting device for applying an ejected substance such as an adhesive, a paint, a cream solder, and a solvent to an ejected object, a dripping of the ejected substance It is possible to prevent the discharge target from being contaminated and to simplify the structure to facilitate the assembly, disassembly and cleaning work.

[0006]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, the present invention forms a storage container by providing a discharge outlet at the lower end, and a cylinder is detachably connected to the upper end of the storage container, and the piston of this cylinder is Connect the rod to be inserted into the storage container, insert the tip of this rod into the outlet of the storage container through the flow interval of the discharged material, and connect the nozzle having a constant space volume to the outlet. Into the space inside this nozzle, a valve body that controls the discharge of discharged substances is inserted separately from the rod, and the tip of the rod can be brought into contact with the valve body. When the rod is pushed down, the valve body is pressed and opened by the tip of the rod, discharging the discharge from the nozzle and pressing force of the valve body when the rod is not pressed, The valve seat can be sealed.

[0007]

[Action]

 Since the present invention is configured as described above, in order to apply the discharge material such as adhesive, paint, cream solder, and solvent to the discharge target object, the piston located above in the cylinder is moved downward. Move and push down on the rod connected to the piston. When the rod is pushed down, the valve body that seals the valve seat at the outlet is pressed by the tip of the rod, moves in the space direction inside the nozzle, and opens the valve seat. With the opening of the valve seat, the discharged substance in the storage container can be discharged from the nozzle through the outflow interval between the tip of the rod and the outflow port and applied to the target substance.

Further, in order to stop the discharge of the discharge product, the piston in the cylinder is moved upward contrary to the above, and the rod connected to the piston is pulled up. By pulling up this rod, the valve body is released from the pressure by the tip of the rod and is in the non-pressed state, so the valve body moves in the valve seat direction due to the pressing biasing force and seals the valve seat at the outlet. To do. With the sealing of the valve seat, the valve body moves from the space in the nozzle toward the valve seat, and the rod is pulled out from the nozzle, increasing the space volume of the nozzle. Therefore, it is possible to suck the discharged material remaining in the space inside the nozzle by an amount corresponding to the increase of the space volume and prevent the discharged material from dripping.

Further, when introducing a discharge product into the storage container or performing cleaning, it is necessary to separate the storage container from the cylinder. In this case, the valve body inserted into the space inside the nozzle and the storage container are inserted. Since it is formed separately from the rod, the valve body is separated into the storage container side and the rod is separated into the cylinder side, so that the storage container can be easily removed.

Further, even when the storage container is detached from the cylinder, the valve body presses the valve seat of the outflow port to reliably seal the valve seat, so that the discharge product in the storage container flows down from the nozzle. There is nothing to do.

As described above, the storage container can be easily detached from the cylinder, and the storage container after the detachment can have the valve seat hermetically sealed by the valve body. Therefore, when replenishing or exchanging the discharged matter, or cleaning or maintaining the storage container, the assembly, disassembly, cleaning work, etc. are easier than the conventional method, and the workability can be improved.

[0012]

【Example】

 An embodiment of the present invention will be described below. (1) is a storage container, and as shown in FIG. 1, a discharge container (2) such as adhesive, paint, cream solder, solvent, etc. is formed so that the lower end can be stored. It is provided in a narrow width to form an outlet (3) for the discharged material (2) and an upper end side is an opening (4). Further, the storage container (1) is provided with an engaging flange (5) projecting from the outer periphery of the opening (4) at the upper end, and the cylinder (6) can be connected through the engaging flange (5).

The cylinder (6) has an engaging recess (7) which can be engaged with the engaging collar (5) and is formed at the lower end of the cylinder (6) so as to detachably connect the storage container (1). Further, the cylinder (6) is connected to the inlet (8) for the pressurized fluid such as air and oil at the upper end, and the piston (10) inserted inside can be moved downward by the introduction of the pressurized fluid. To do. Further, the cylinder (6) has an upper spring (11) for urging the piston (10) downward. With this structure, the piston (10) can be easily moved by the urging force of the upper spring (11) even if the pressure of the pressurized fluid is small. Further, the cylinder (6) is formed with a stopper (12) at the center of the lower end which is inserted into the opening (4) of the storage container (1), and the stopper (12) is provided with a pressure regulator (not shown). Open the pressure adjusting port (13) that connects the inner part of the storage container (1) with the inner part (1). The pressure adjusting port (13) communicates with the connecting port (14) of the pressure adjusting device via an annular passage (9) provided on the upper end surface of the closing plug (12).

In the piston (10) of the cylinder (6), a rod (15) having a size capable of inserting the storage container (1) is screwed and fixed by a nut (16), and the rod (15) is closed. It is slidably inserted into the storage container (1) through an insertion opening (17) opened in the stopper (12).

Further, the tip of the rod (15) is used as a pressing portion (18), and the pressing portion (18) flows through the flow interval (20) of the discharged matter (2) into the storage container (1). Insert into outlet (3). A nozzle (21) having a constant space volume is screwed and fixed to the outlet (3) of the storage container (1), and the discharge control of the discharge product (2) is performed in the space inside the nozzle (21). Insert the valve body (22) for performing.

The valve body (22) is formed separately from the rod (15) so as to be separable from the rod (15), and has a pressure receiving portion (23) with which the pressing portion (18) of the rod (15) can come into contact with at the upper end. It is recessed. Further, the valve body (22) has a tapered surface (24) formed on the outer periphery of the upper portion, and the tapered surface (24) is abutted against the valve seat (25) provided at the lower end of the outlet (3) to close the valve. It is possible. Further, the nozzle (21) into which the valve body (22) is inserted has a lower spring (27) having a stronger biasing force than the upper spring (11) in the direction of the discharge port (26), and the rod (15). In the unpressed state, the valve body (22) is pressed and urged against the valve seat (25).

A method of applying the discharge object (2) such as an adhesive, a paint, a cream solder, a solvent, etc. to the discharge target object in the structure configured as described above will be described. First, in the state shown in FIG. 1, the pressurized fluid is introduced into the cylinder (6) through the inlet (8). By introducing this pressurized fluid, the piston (10) located above in the cylinder (6) is moved downward, and the rod (15) connected to the piston (10) is pushed down. At this time, even if the pressurizing force of the pressurized fluid is small, the downward biasing force of the upper spring (11) is applied, so that the piston (10) can be easily moved.

The valve body (22) that closes the valve seat (25) of the outflow port (3) by pushing down the rod (15) has a pressure receiving portion (23) at the pressing portion (18) of the rod (15). Is pressed. Therefore, the valve body (22) moves toward the discharge port (26) in the nozzle (21) against the urging force of the lower spring (27) to open the valve seat (25) as shown in FIG. To do. With the opening of the valve seat (25), the discharged substance (2) in the storage container (1) is valved from the flow interval (20) between the tip of the rod (15) and the outlet (3). It can be discharged from the discharge port (26) through the opening of the seat (25) and applied to the discharge target.

Further, when the discharge product (2) has a high viscosity, the discharge product (2) is less likely to be discharged from the inside of the nozzle (21), but in this case, the storage container is provided through the pressure adjusting port (13). If the pressure in (1) is increased, the ejected substance (2) can be easily ejected.

When the viscosity of the discharge product (2) is low, the discharge container (1) can be satisfactorily discharged by depressurizing the storage container (1) through the pressure adjusting port (13). Become.

Next, in order to stop the discharge of the discharge product (2), the supply of the pressurized fluid to the introduction port (8) is stopped and the downward pressing of the piston (10) is released. By this release of the pressure, the valve body (22) is also released from the pressure and becomes in the non-pressed state. Therefore, the valve element (22) moves toward the valve seat (25) by the pressing biasing force of the lower ridge (27), and seals the valve seat (25) of the outflow port (3). The rod (15) is pushed upward by the pressure receiving portion (23) of the valve body (22) by the movement of the valve body (22) toward the valve seat (25), so that the cylinder ( The piston (10) in (6) is moved upwards against the biasing force of the upper spring (11).

Further, as the valve seat (25) is sealed, the valve body (22) moves from the space inside the nozzle (21) toward the valve seat (25) and the rod (15) as shown in FIG. Are extracted from the inside of the nozzle (21) to increase the space volume of the nozzle (21). Therefore, the discharged matter (2) remaining in the space inside the nozzle (21) can be sucked by the increased volume of the space, and the drooling of the discharged matter (2) can be prevented.

Further, when introducing the discharge product (2) into the storage container (1) or cleaning the storage container (1), the storage container (1) needs to be detached from the cylinder (6). In this case, as shown in FIG. 3, the storage container (1) is rotated 90 ° to release the engagement between the engagement recess (7) of the cylinder (6) and the engagement flange (5) of the storage container (1). To do. When the storage container (1) is removed from the cylinder (6), the valve body (22) and the rod (15) are formed separately, so that the rod (15) is placed on the cylinder (6) side, The body (22) is separated on the side of the storage container (1). At this time, the valve body (22) is urged by the urging force of the lower spring (27) against the valve seat (25) of the outflow port (3), as shown in FIG. It can be sealed, and the discharged product (2) will not leak out.

Further, in the above embodiment, the discharge product (2) was introduced into the storage container (1) by removing the storage container (1) from the cylinder (6), but in different embodiments, The cylinder (6) and the closing plug (12) open the supply port (28) of the discharge product (2) as shown in FIG. If formed in this way, the discharge product (2) can be supplied to the storage container (1) without stopping the apparatus, and the discharge work can be continued for a long time.

[0025]

[Effect of the device]

 The present invention makes it possible to prevent the discharge target from being contaminated by the discharge device that applies discharge such as adhesive, paint, cream solder, and solvent to the discharge target, and the discharge of the discharge becomes good. Become.

Further, the storage container can be easily detached from the cylinder, and the storage container after the detachment can have the valve seat hermetically sealed by the valve element. Therefore, when replenishing, replacing, or cleaning and maintaining the discharge container, the assembling, disassembling, cleaning work and the like are easier than the conventional method, and the workability can be improved.

[Brief description of drawings]

FIG. 1 Sectional view

FIG. 2 is a partially enlarged sectional view showing a state where a valve seat is opened.

FIG. 3 is a plan view of FIG.

FIG. 4 is a sectional view of the storage container separated from the cylinder.

FIG. 5 is a partial sectional view of a different embodiment.

[Explanation of symbols]

 1 Storage Container 2 Discharge 3 Outlet 6 Cylinder 10 Piston 15 Rod 20 Distribution Interval 22 Valve Body 25 Valve Seat

Claims (1)

[Scope of utility model registration request] 1. A storage container is formed by providing a discharge outlet at a lower end, and a cylinder is detachably connected to an upper end of the storage container, and a rod inserted into the storage container is attached to a piston of the cylinder. Connect, insert the tip of this rod into the outlet of the storage container via the flow interval of the discharged material, connect a nozzle having a constant space volume to this outlet, and discharge into the space inside this nozzle. The valve body that controls the discharge of the object is inserted separately from the rod, and the tip of the rod can be brought into contact with the valve body. The feature is that the valve body is pressed and opened by the tip of the rod when it is pushed down to allow the discharge of the discharged product from the nozzle, and the valve seat can be closed by the pressing force of the valve body when the rod is not pressed. Discharge device.