Two-component wear-resistant precision on-off valve

Abstract

The utility model discloses a kind of two-component wear-resistant precision on-off valve, it is related to on-off valve technical field, including shell and sealing ring, the both sides of shell are equipped with liquid inlet, and the top of shell is connected with top cover, and the top of top cover is provided with discharge head, the sealing ring is inlayed in the top of shell, and the top of sealing ring is connected with sealing sleeve, the bottom of shell is equipped with driving assembly. The two-component wear-resistant precision on-off valve in use process, by the friction component material quality of all contact with sealing module on driving rod module is replaced from original high carbon steel to ceramic material, utilize ceramic high hardness and wear resistance performance to extend service life, and sealing ring contacted with glue is replaced from original high carbon steel to tungsten steel material, while improving hardness and wear resistance, also have certain impact resistance, avoid being damaged when valve opening and closing, to make valve overall life extension more than three times.

Description

Technical Field

[0001] This utility model relates to the field of switching valve technology, specifically a two-component wear-resistant precision switching valve. Background Technology

[0002] Two-component on / off valves are used to control the dispensing or delivery of two components in adhesives and sealants, and are commonly used in automated application processes.

[0003] Existing two-component precision switching valves typically use high-carbon steel for their sealing friction points, which can lead to wear and aging that affects the overall sealing accuracy after prolonged use. Utility Model Content

[0004] The purpose of this invention is to provide a two-component wear-resistant precision switching valve to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a two-component wear-resistant precision switching valve, comprising a housing and a sealing ring, wherein liquid inlet ports are provided on both sides of the housing, and a top cover is connected to the top of the housing, and a discharge head is provided on the top of the top cover; the sealing ring is fitted into the top of the housing, and a sealing sleeve is connected to the top of the sealing ring; and a drive assembly is disposed at the bottom of the housing.

[0006] Furthermore, the sealing sleeve is fitted with the top cover, and the top cover is fixedly connected to the housing by bolts.

[0007] Furthermore, the drive assembly includes a cylinder and a pneumatic connector, with the cylinder connected to the bottom of the housing and the pneumatic connector disposed on one side of the cylinder.

[0008] Furthermore, the drive assembly also includes a fixed sealing plate and a piston plate. The fixed sealing plate is installed at the lower end of the cylinder, and the piston plate is slidably connected inside the middle and lower section of the cylinder.

[0009] Furthermore, the drive assembly also includes a drive rod module and a sealing module. The drive rod module is housed inside the piston plate, and the sealing module is sleeved on the outer side of the middle part of the drive rod module.

[0010] Furthermore, the upper end of the drive rod module is internally threaded with a valve stem, and a valve sleeve is fitted on the outer side of the valve stem.

[0011] Furthermore, a nut is abutted against the top of the valve sleeve, and the nut is threadedly connected to the valve stem.

[0012] Furthermore, the upper part of the valve sleeve is inverted conical, and the diameter of the upper part of the valve sleeve is larger than the inner diameter of the sealing ring.

[0013] This utility model provides a two-component wear-resistant precision switching valve, which has the following beneficial effects:

[0014] 1. In the process of use, this utility model replaces the material of all friction parts on the drive rod module that come into contact with the sealing module with ceramic material, thereby extending the service life by utilizing the high hardness and wear resistance of ceramic. In addition, the sealing ring that comes into contact with the glue is replaced with tungsten steel material, which improves hardness and wear resistance while also having a certain impact resistance, thus preventing damage when the valve is opened and closed, thereby extending the overall life of the valve by more than three times.

[0015] 2. This utility model, through the setting of the drive component, when the external solenoid valve controls the gas to enter and exit the cylinder, will drive the piston plate to move the drive rod module upward, thereby driving the valve rod to separate the upper end of the valve sleeve from the sealing ring. At this time, the glue entering from the liquid inlet can be discharged through the discharge head. When the piston plate moves downward, it can pull the valve rod through the drive rod module to make the valve sleeve and the sealing ring seal with a high-precision inclined surface, thereby achieving precise control of the glue dispensing degree. Furthermore, the valve sleeve is fixed to the valve rod by a nut. Through the split design, when a part is damaged, only the corresponding part needs to be replaced, which helps to reduce maintenance costs. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a two-component wear-resistant precision switching valve according to the present invention;

[0017] Figure 2 This is a schematic diagram of the overall cross-sectional structure of a two-component wear-resistant precision switching valve according to the present invention;

[0018] Figure 3 This is a three-dimensional structural diagram of the valve sleeve of a two-component wear-resistant precision switching valve according to this utility model.

[0019] In the diagram: 1. Housing; 2. Liquid inlet; 3. Top cover; 4. Discharge head; 5. Sealing ring; 6. Sealing sleeve; 7. Drive assembly; 701. Cylinder; 702. Pneumatic connector; 703. Fixed sealing plate; 704. Piston plate; 705. Drive rod module; 706. Sealing module; 8. Valve stem; 9. Valve sleeve; 10. Nut. Detailed Implementation

[0020] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0021] like Figures 1 to 2As shown, a two-component wear-resistant precision switching valve includes a housing 1 and a sealing ring 5. Liquid inlet ports 2 are provided on both sides of the housing 1, and a top cover 3 is connected to the top of the housing 1. A discharge head 4 is provided on the top of the top cover 3. The sealing ring 5 is fitted into the top of the housing 1, and a sealing sleeve 6 is connected to the top of the sealing ring 5. The sealing ring 5 is replaced with tungsten steel, which improves hardness and wear resistance while also providing some impact resistance, preventing damage during valve opening and closing. A drive assembly 7 is installed at the bottom of the housing 1. The sealing sleeve 6 is fitted into the top cover 3, and the top cover 3 is fixedly connected to the housing 1 by bolts, facilitating the assembly of the top cover 3 and the housing 1, and also limiting the position of the sealing sleeve 6.

[0022] like Figures 1 to 3 As shown, the drive assembly 7 includes a cylinder 701 and a pneumatic connector 702. The cylinder 701 is connected to the bottom of the housing 1, and the pneumatic connector 702 is installed on one side of the cylinder 701. The drive assembly 7 also includes a fixed sealing plate 703 and a piston plate 704. The fixed sealing plate 703 is installed at the lower end of the cylinder 701, and the piston plate 704 is slidably connected inside the middle and lower section of the cylinder 701. The drive assembly 7 also includes a drive rod module 705 and a sealing module 706. The drive rod module 705 is installed inside the piston plate 704, and the sealing module 706 is sleeved on the outer side of the middle part of the drive rod module 705. By replacing the material of all friction parts on the drive rod module 705 that contact the sealing module 706 with ceramic material, the high hardness and wear resistance of ceramic are utilized to extend the... For long service life, the upper end of the drive rod module 705 is internally threaded with a valve stem 8, and a valve sleeve 9 is fitted on the outside of the valve stem 8. When the external solenoid valve controls the gas to enter or exit the cylinder 701, it will drive the piston plate 704 to move the drive rod module 705 upward. At this time, the glue entering from the liquid inlet 2 can be discharged through the discharge head 4. The top of the valve sleeve 9 abuts against the nut 10, and the nut 10 is threadedly connected to the valve stem 8. Since the valve sleeve 9 is fixed to the valve stem 8 by the nut 10, it is convenient to disassemble and install during maintenance and repair. The upper part of the valve sleeve 9 is inverted conical, and the upper diameter of the valve sleeve 9 is larger than the inner diameter of the sealing ring 5. When the piston plate 704 moves downward, it can pull the valve stem 8 through the drive rod module 705, so that the valve sleeve 9 and the sealing ring 5 are sealed with a high-precision inclined surface, thereby precisely controlling the glue dispensing degree.

[0023] In summary, when using this two-component wear-resistant precision switching valve, firstly according to... Figure 1 , Figure 2 and Figure 3As shown in the structure, when the external solenoid valve controls the gas source to enter the lower end of the cylinder 701 through the pneumatic connector 702, the fixed sealing plate 703 is fixed in position, and the gas will drive the piston plate 704 to move the drive rod module 705 upward, thereby driving the valve rod 8 to separate the upper end of the valve sleeve 9 from the sealing ring 5 and place it inside the sealing sleeve 6. In this process, since the material of all friction parts on the drive rod module 705 that come into contact with the sealing module 706 is changed from high carbon steel to ceramic, the high hardness and wear resistance of ceramic are used to extend the service life. Then, the glue entering from the liquid inlet 2 can pass through the top cover 3 and be discharged from the outlet 4. Then, when the solenoid valve controls the gas source to enter the upper part of the piston plate 704, the piston plate 704 moves downward, which can pull the valve rod 8 through the drive rod module 705, so that the valve sleeve 9 and the sealing ring 5 are sealed with a high precision bevel. In addition, since the sealing ring 5 is changed from high carbon steel to tungsten steel, while improving hardness and wear resistance, it also has a certain impact resistance, avoiding damage when the valve is opened and closed.

[0024] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A two-component wear-resistant precision switching valve, comprising a housing (1) and a sealing ring (5), characterized in that, The housing (1) has liquid inlet ports (2) on both sides, and a top cover (3) is connected to the top of the housing (1). A discharge head (4) is provided on the top of the top cover (3). The sealing ring (5) is fitted into the top of the housing (1), and a sealing sleeve (6) is connected to the top of the sealing ring (5). A drive assembly (7) is installed at the bottom of the housing (1).

2. The two-component wear-resistant precision switching valve according to claim 1, characterized in that, The sealing sleeve (6) is fitted with the top cover (3), and the top cover (3) is fixedly connected to the housing (1) by bolts.

3. The two-component wear-resistant precision switching valve according to claim 1, characterized in that, The drive assembly (7) includes a cylinder (701) and a pneumatic connector (702). The bottom of the housing (1) is connected to the cylinder (701), and the pneumatic connector (702) is arranged on one side of the cylinder (701).

4. The two-component wear-resistant precision switching valve according to claim 3, characterized in that, The drive assembly (7) further includes a fixed sealing plate (703) and a piston plate (704). The fixed sealing plate (703) is installed at the lower end of the cylinder (701), and the piston plate (704) is slidably connected to the lower middle section of the cylinder (701).

5. A two-component wear-resistant precision switching valve according to claim 4, characterized in that, The drive assembly (7) further includes a drive rod module (705) and a sealing module (706). The drive rod module (705) is disposed inside the piston plate (704), and the sealing module (706) is sleeved on the outer side of the middle part of the drive rod module (705).

6. The two-component wear-resistant precision switching valve according to claim 5, characterized in that, The upper end of the drive rod module (705) is internally threaded with a valve rod (8), and a valve sleeve (9) is fitted on the outside of the valve rod (8).

7. A two-component wear-resistant precision switching valve according to claim 6, characterized in that, The top of the valve sleeve (9) is abutted by a nut (10), and the nut (10) is threadedly connected to the valve stem (8).

8. The two-component wear-resistant precision switching valve according to claim 7, characterized in that, The upper part of the valve sleeve (9) is inverted conical, and the upper diameter of the valve sleeve (9) is larger than the inner diameter of the sealing ring (5).

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