A reliable and durable rotary switch valve

Abstract

The utility model relates to a kind of reliable and durable rotary switch valve in dispensing processing technical field, it is disclosed, including valve body assembly, the main part of connecting valve body assembly and being located the right end cover of the side surface of the valve body assembly, the valve body assembly includes valve body, valve sleeve, valve core and dispensing part, the valve body is sealingly connected with the main part, valve core is laterally arranged in the valve body, valve sleeve is arranged on the valve core, the dispensing part is arranged in the lower end of the valve body, valve body and the main part connection part are provided with left end cover, one end of the main part is installed with shaft coupling, shaft coupling is connected with one end of valve core;Adopt the mode of dynamic sealing and O type sealing ring static sealing of general plug, and the setting of easily replaceable valve core, valve sleeve and bearing steel ball, so that valve core can rotate in valve body, the glue injection hole is vertically connected with dispensing part from top to bottom, so that dispensing valve is accurately positioned as a whole, with good sealing property, high wear resistance, reduce cost, high in use efficiency, with good market application value.

Description

Technical Field

[0001] This utility model relates to the field of dispensing processing technology, and more particularly to a reliable and durable rotary switch valve. Background Technology

[0002] With the explosive growth of the global new energy industry and the continuous upgrading of the semiconductor and electronic technology industry, precision dispensing is increasingly inseparable from the use of switching valves. Furthermore, adhesives with high-hardness particles, such as thermally conductive silicone, significantly accelerate the wear of switching valves due to their abrasive effect. Currently, rotary on / off valves are widely used in the dispensing of various precision electronic components, such as conductive and thermally conductive adhesives. They are usually used in conjunction with other dispensing valves to physically control the flow of adhesive, thereby achieving better dispensing results and preventing the risk of adhesive leakage. The core principle is that a rotary cylinder drives the rotation of a cylindrical valve core, causing the holes between the valve core and the valve sleeve to be misaligned, thus controlling the flow of adhesive. However, after long-term market testing, this traditional structure has gradually revealed its shortcomings: inaccurate hole positioning, insufficient circumferential dynamic sealing leading to silicone oil precipitation, wear of the valve core and valve sleeve during rotation resulting in reduced lifespan, and high cost due to the difficulty and expense of processing high-wear-resistant materials.

[0003] Existing technology has flaws and needs improvement. Utility Model Content

[0004] To address the shortcomings of current technology, this invention provides a reliable and durable rotary switching valve.

[0005] The present invention provides a reliable and durable rotary switch valve, comprising a valve body assembly, a main body connecting the valve body assembly, and a right end cap disposed on one side of the valve body assembly. The valve body assembly includes a valve body, a valve sleeve, a valve core, and an adhesive dispensing part. The valve body is sealed to the main body, the valve core is transversely disposed within the valve body, the valve sleeve is disposed on the valve core, the adhesive dispensing part is disposed at the lower end of the valve body, a left end cap is disposed at the connection between the valve body and the main body, a coupling is mounted on one end of the main body, and the coupling is connected to one end of the valve core.

[0006] Preferably, the valve body, valve sleeve, and valve core are provided with a through-hole for dispensing glue vertically downwards, and the dispensing glue hole is connected to the glue dispensing part.

[0007] Preferably, a first glue storage groove and a second glue storage groove are respectively provided on both sides of the valve sleeve, and both the first glue storage groove and the second glue storage groove are sealed to the valve body.

[0008] Preferably, a spring sealing part is installed at the sealing point between the valve sleeve and the valve core. The spring sealing part includes a first spring sealing plug and a second spring sealing plug, which are respectively located at both ends of the valve body.

[0009] Preferably, an O-ring is installed at the connection between the right end cover and the valve body assembly.

[0010] Preferably, the valve core is provided with bearing steel balls at both ends. The bearing steel ball at one end of the valve core is embedded in the coupling of the main body, and the bearing steel ball at the other end of the valve core is embedded in the right end cover.

[0011] Preferably, the valve body is made of aluminum alloy, and the valve core and the valve sleeve are both made of tungsten steel.

[0012] Compared to the advantages of existing technologies, this utility model adopts a combination of dynamic sealing with plugs and static sealing with O-rings, as well as easy replacement of the valve core, valve sleeve, and bearing balls. This allows the valve core to rotate within the valve body. The glue injection hole is vertically connected to the glue dispensing part from top to bottom, ensuring accurate positioning and good sealing of the dispensing valve. The valve core and valve sleeve exhibit high wear resistance during rotation. Furthermore, replacing the valve body with an aluminum alloy material reduces costs and increases efficiency, making it a valuable addition to the market. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the overall cross-sectional structure of this utility model; Figure 3 This is a schematic diagram of the valve core and valve sleeve structure of this utility model.

[0014] Markings: Valve body assembly 11, main body 12, right end cover 5, valve body 1, valve sleeve 2, valve core 3, glue dispensing part 10, left end cover 4, coupling 6, bearing steel ball 7, spring seal part 8, O-ring seal 9. Detailed Implementation

[0015] It should be noted that the above-mentioned technical features can be combined with each other to form various embodiments not listed above, all of which are considered to be within the scope of this utility model specification; and, for those skilled in the art, improvements or modifications can be made based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims of this utility model.

[0016] To facilitate understanding of this utility model, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. The accompanying drawings show preferred embodiments of this utility model. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0017] It should be noted that when a component is described as being "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is described as being "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this specification are for illustrative purposes only.

[0018] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention.

[0019] The present invention will now be described in detail with reference to the accompanying drawings.

[0020] like Figures 1-3 As shown: A reliable and durable rotary switch valve includes a valve body assembly 11, a main body 12 connecting the valve body assembly 11, and a right end cap 5 disposed on one side of the valve body assembly 11. The valve body assembly 11 includes a valve body 1, a valve sleeve 2, a valve core 3, and an adhesive dispensing part 10. The valve body 1 is sealed to the main body 12. The valve core 3 is transversely disposed within the valve body 1. The valve sleeve 2 is disposed on the valve core 3. The adhesive dispensing part 10 is disposed at the lower end of the valve body 1. A left end cap 4 is disposed at the connection between the valve body 1 and the main body 12. A coupling 6 is installed at one end of the main body 12, and the coupling 6 is connected to one end of the valve core 3.

[0021] It should be noted that this valve is precision and compact, and the positioning of the cylindrical valve core 3 and valve sleeve 2 is difficult. Due to wear, the dimensional accuracy of the positioning surface continues to decrease, causing particles in the glue to enter the gap of the rotary valve and cause blockage. In this application, the valve core 3 and valve sleeve 2 are designed with two glue storage grooves on each side, and are equipped with glue injection holes that pass through them, so as to achieve the fastening and sealing between the valve body 1 and valve sleeve 2 after full glue injection. Moreover, the valve body assembly 11 can be quickly replaced by the first bearing steel ball 7 and the second bearing steel ball 7 at both ends of the valve core 3, so that the worn valve core 3 can be recycled and reused, reducing costs. At the same time, because the valve core 3 and valve body 1 are installed through the plug, their point / surface contact positioning is accurate; the frictional resistance during rotation is small; only the contact part is made of high hardness material, reducing the processing difficulty and cost; the steel balls are standard parts, which are easy to replace after wear.

[0022] Preferably, the valve body 1, valve sleeve 2 and valve core 3 are provided with a through-hole for injecting glue vertically downward, and the glue injection hole is connected to the glue dispensing part 10.

[0023] It should be noted that the glue injection hole is provided with a connecting glue dispensing part 10 from top to bottom, so as to achieve the fastening and sealing between the valve body 1, valve sleeve 2 and valve core 3 after full glue injection.

[0024] Preferably, the valve sleeve 2 is provided with a first glue storage groove and a second glue storage groove on both sides, and the first glue storage groove and the second glue storage groove are both sealed to the valve body 1.

[0025] It should be noted that the first and second glue storage tanks are designed as inward-facing U-shaped grooves.

[0026] Preferably, a spring sealing part 8 is installed at the sealing point between the valve sleeve 2 and the valve core 3. The spring sealing part 8 includes a first spring sealing plug and a second spring sealing plug, which are respectively located at both ends of the valve body 1.

[0027] It should be noted that the spring sealing part 8 is a plug, which is pressed by the left end cover 4 and the right end cover 5 on both sides.

[0028] Preferably, an O-ring 9 is installed at the connection between the right end cover 5 and the valve body assembly 11.

[0029] It should be noted that the O-ring 9 is installed because the right end cover 5 is connected to the external environment, and this is to prevent dust, moisture, etc. from entering the valve body assembly 11.

[0030] Preferably, the valve core 3 is provided with bearing steel balls 7 at both ends. The bearing steel ball 7 at one end of the valve core 3 is embedded in the coupling 6 of the main body 12, and the bearing steel ball 7 at the other end of the valve core 3 is embedded in the right end cover 5.

[0031] It should be noted that a first ejection hole is installed on one side of the bearing steel ball 7 inside the coupling 6, and a second ejection hole is installed on one side of the bearing steel ball 7 inside the right end cover 5. The ejection holes are used to eject the bearing steel ball 7 to realize the replacement of the valve body assembly 11; the bearing steel ball 7 is used to make its point / surface contact positioning accurate; the frictional resistance is small when rotating; only the contact part is made of high hardness material, which reduces the processing difficulty and cost; the steel ball is a standard part, which is easy to replace after wear.

[0032] Furthermore, the bearing steel ball 7 inside the coupling 6 is installed on one side with a first ejector hole that connects to the ejector rod inside the main body.

[0033] Preferably, the valve body 1 is made of aluminum alloy, and the valve core 3 and the valve sleeve 2 are both made of tungsten steel.

[0034] It should be noted that the tungsten steel parts, being wear parts, can be directly replaced after wear. The valve core 3 can be easily replaced by plugging and unplugging after wear, while the valve sleeve 2 needs to be removed and replaced after heating to deactivate the sealing adhesive. Therefore, in the entire rotary dispensing valve, only the valve core 3, valve sleeve 2, and the bearing steel balls 7 on the end cover and coupling 6 need to be replaced due to wear, which greatly reduces maintenance costs compared to traditional rotary switch valves. This design can also flexibly replace wear parts of different materials depending on the type of adhesive used by the customer: for example, for adhesives without high-hardness particles, it is recommended to select valve core 3 and valve sleeve 2 with low-hardness alloy steel and high-hardness titanium alloy coating to achieve a better cost-effectiveness ratio.

[0035] It should be noted that the above-mentioned technical features can be combined with each other to form various embodiments not listed above, all of which are considered to be within the scope of this utility model specification; and, for those skilled in the art, improvements or modifications can be made based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims of this utility model.

Claims

1. A reliable and durable rotary switching valve, characterized in that, The device includes a valve body assembly, a main body connecting the valve body assembly, and a right end cap located on one side of the valve body assembly. The valve body assembly includes a valve body, a valve sleeve, a valve core, and an adhesive dispensing part. The valve body is sealed to the main body. The valve core is transversely disposed within the valve body. The valve sleeve is disposed on the valve core. The adhesive dispensing part is located at the lower end of the valve body. A left end cap is provided at the connection between the valve body and the main body. A coupling is installed at one end of the main body and is connected to one end of the valve core.

2. The reliable and durable rotary switching valve according to claim 1, characterized in that, The valve body, valve sleeve, and valve core are provided with a through-hole for dispensing glue vertically downwards, and the dispensing glue hole is connected to the glue dispensing part.

3. A reliable and durable rotary switching valve according to claim 1, characterized in that, The valve sleeve is provided with a first glue storage groove and a second glue storage groove on both sides, and both the first glue storage groove and the second glue storage groove are sealed to the valve body.

4. A reliable and durable rotary switching valve according to claim 1, characterized in that, A spring sealing part is installed at the sealing point between the valve sleeve and the valve core. The spring sealing part includes a first spring sealing plug and a second spring sealing plug, which are respectively located at both ends of the valve body.

5. A reliable and durable rotary switching valve according to claim 1, characterized in that, An O-ring is installed at the connection between the right end cap and the valve body assembly.

6. A reliable and durable rotary switching valve according to claim 1, characterized in that, The valve core is provided with bearing steel balls at both ends. The bearing steel ball at one end of the valve core is embedded in the coupling of the main body, and the bearing steel ball at the other end of the valve core is embedded in the right end cover.

7. A reliable and durable rotary switching valve according to claim 1, characterized in that, The valve body is made of aluminum alloy, and the valve core and valve sleeve are both made of tungsten steel.

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