Ring valve disc raw material cleaning apparatus

Abstract

The utility model discloses annular valve piece raw material cleaning equipment relates to valve piece raw material cleaning technical field, including the cleaning pool of spring steel band to carry out cleaning, be provided with a plurality of guide rollers between the front and rear pool wall of cleaning pool, the adjacent two guide rollers are arranged up and down, and the front and rear sidewall on the discharge end of cleaning pool is installed with the liquid scraping mechanism, and the upper half portion of liquid scraping mechanism projects cleaning pool, and the liquid scraping mechanism includes two symmetrical arrangement's scraper, and the both ends of scraper are fixed on the front and rear pool wall of cleaning pool, and the two scrapers form the draining space of " V " type between two, and the both ends of two scrapers are butted on the both sides of spring steel band. The utility model discloses liquid scraping and draining completely, and the design of " V " type draining space makes residual liquid natural collection, and cooperates with the water leakage hole of inclination and realizes quick liquid discharge, and rubber strip and spring steel band closely adhere, improve the liquid scraping efficiency, and effectively avoid secondary pollution and steel band corrosion caused by residual liquid.

Description

Technical Field

[0001] This utility model relates to the field of valve plate raw material cleaning technology, specifically to annular valve plate raw material cleaning equipment. Background Technology

[0002] In the existing technology, annular valve plates are usually made of spring steel strip as raw material, and are manufactured through processes such as stamping, heat treatment, and grinding. However, during the rolling, storage, and transportation process, the surface of the spring steel strip is prone to adhering to impurities such as rolling oil, rust-preventive oil, dust, metal shavings, and oxide layers, which requires the use of cleaning equipment.

[0003] Existing cleaning equipment mainly includes a cleaning tank, with several guide rollers installed between the front and rear walls of the cleaning tank. Adjacent guide rollers are arranged vertically to increase the residence time of the spring steel belt in the cleaning tank and ensure the cleaning effect. In addition, a traction device is installed outside the cleaning tank to pull the spring steel belt out of the cleaning tank.

[0004] However, the above-mentioned cleaning equipment has the following defects during use: a large amount of cleaning liquid will remain on the surface of the spring steel strip after cleaning. If the residual liquid is not scraped off or the spring steel strip is not dried, the residual liquid will not only carry impurities and cause secondary pollution, but also accelerate the corrosion of the steel strip.

[0005] Therefore, in order to address the above problems, there is an urgent need for a cleaning equipment for annular valve disc raw materials that can scrape and dry spring steel strips, in order to meet the needs of large-scale production of annular valve discs. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a raw material cleaning device for annular valve plates, which solves the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: The annular valve plate raw material cleaning equipment includes a cleaning tank for cleaning spring steel strips. Several guide rollers are installed between the front and rear walls of the cleaning tank, with adjacent guide rollers arranged vertically. A scraping mechanism is installed on the front and rear side walls of the discharge end of the cleaning tank. The upper part of the scraping mechanism extends out of the cleaning tank. The scraping mechanism includes two symmetrically arranged scrapers. The two ends of the scrapers are fixed to the front and rear walls of the cleaning tank, forming a "V"-shaped drainage space between the two scrapers. The lower ends of the two scrapers abut against both sides of the spring steel strip.

[0008] In order to drain the liquid in the drainage space, the scraper is provided with a number of equally spaced drainage holes near its lower end. The drainage holes penetrate the scraper from the inside to the outside and diagonally downward.

[0009] To increase the friction between the scraper and the spring steel belt, the lower ends of the two scrapers are set as opposing planes, and a rubber strip is fixed on the plane.

[0010] To accelerate the drying of the spring steel strip surface, an air cavity is provided inside the scraper, and an air supply structure is provided outside the cleaning tank. The air supply structure is connected to the air cavity. The air supply structure includes a fan and a flexible hose located outside the cleaning tank. The air outlet of the fan is connected to the middle of the flexible hose. An air inlet is provided on the front side of the scraper near its upper end, and the air inlet is connected to the air cavity. Both ends of the flexible hose are fixed to the scraper and connected to the air inlet. Several air blowing holes arranged in a rectangular array are provided on the outer side of the scraper.

[0011] To prevent cleaning fluid from entering the air cavity and to accelerate the downward flow of liquid on the spring steel belt, the air holes are arranged at an angle downwards from the inside out.

[0012] Compared with the prior art, this utility model has the following advantages: thorough scraping and drainage; the "V"-shaped drainage space design allows residual liquid to collect naturally; the inclined drainage holes enable rapid drainage; the rubber strip and spring steel belt fit tightly together, improving scraping efficiency and effectively avoiding secondary pollution and steel belt corrosion caused by residual liquid; the downward-sloping air holes prevent liquid splashing; and the airflow flows along the surface of the spring steel belt, improving the drying speed of the spring steel belt. Attached Figure Description

[0013] Figure 1 This is a sectional view of the main view of this utility model (the horizontal arrow points to the traction direction of the spring steel belt). Figure 2 This is a top view of the structure of this utility model; Figure 3 The three-dimensional scraping mechanism of this utility model Figure 1 ; Figure 4 The three-dimensional scraping mechanism of this utility model Figure 2 ; Figure 5 This is a partial perspective view of the scraping mechanism of this utility model; Figure 6 This is a sectional view of the main view of the scraping mechanism of this utility model.

[0014] Reference numerals: 1. Cleaning tank; 2. Guide roller; 3. Scraper; 3-1. Drain hole; 3-2. Air cavity; 3-3. Air blower; 4. Rubber strip; 5. Fan; 6. Hose; X. Spring steel belt. Detailed Implementation

[0015] The following will refer to the appendix in the embodiments of this utility model. Figure 1-6 The technical solutions in the embodiments of this utility model will be clearly and completely described. Example

[0016] The annular valve plate raw material cleaning equipment includes a cleaning tank 1 for cleaning spring steel strip X, which is welded from 304 stainless steel or PVC sheet and has acid and alkali corrosion resistance. A drain valve is provided at the bottom of one side wall of the cleaning tank 1, allowing liquid to be directly scooped out. This invention only scrapes off residual liquid on the surface of the spring steel strip X; other issues can be addressed by referring to existing technologies. Depending on the cleaning requirements, water, 5%-20% hydrochloric acid (for removing oxide layers), or 3%-10% sodium hydroxide solution (for removing oxide layers) can be injected into the cleaning tank 1. (For oil removal), several guide rollers 2 are installed between the front and rear walls of the cleaning tank 1. Two adjacent guide rollers 2 are arranged vertically to form an "S"-shaped travel path of the spring steel belt X, which prolongs the soaking time in the cleaning tank 1. The guide rollers 2 are made of ceramic or polytetrafluoroethylene with a surface smoothness of ≤0.8μm to avoid scratching the spring steel belt X. The two ends of the guide rollers 2 can be fixed to the front and rear walls of the cleaning tank 1, or the two ends can be connected to the tank wall of the cleaning tank 1 through deep groove ball bearings (model 6205). The outer ring of the bearing is sealed with a fluororubber seal to prevent the cleaning liquid from seeping in.

[0017] Based on the type of impurities on the surface of the spring steel strip X, a suitable cleaning solution is selected and injected into the cleaning tank 1 until the liquid level reaches the set height. One end of the spring steel strip X is then passed through the guide roller 2 at the feed end of the cleaning tank 1, and follows an "S"-shaped path around each guide roller 2. Finally, it passes through the scraping mechanism at the discharge end and connects to the subsequent traction device (such as a servo traction machine). The traction device is then started, and the spring steel strip X moves at a constant speed, making full contact with the cleaning solution in the cleaning tank 1. Impurities such as oil stains and oxide layers on the surface are dissolved or peeled off. Example

[0018] Based on the first embodiment, a scraping mechanism is installed on the front and rear side walls of the discharge end of the cleaning tank 1. The upper part of the scraping mechanism extends out of the cleaning tank 1. The scraping mechanism includes two symmetrically arranged scrapers 3, which are made of polyvinylidene fluoride and have acid and alkali resistance and wear resistance. The two ends of the scrapers 3 are fixed to the front and rear tank walls of the cleaning tank 1. A "V"-shaped drainage space is formed between the two scrapers 3 to facilitate the collection of residual liquid to the bottom. The lower ends of the two scrapers 3 abut against the two sides of the spring steel strip X. The distance between the lower ends is adapted to the thickness of the spring steel strip X, which is usually 0.5-2mm.

[0019] In order to facilitate the drainage of liquid in the drain space, the scraper 3 has several equally spaced drainage holes 3-1 near its lower end. The drainage holes 3-1 penetrate the scraper 3 from the inside to the outside and diagonally downward, so as to facilitate the rapid drainage of the accumulated liquid in the "V" shaped space and return it to the cleaning tank 1, thereby reducing liquid residue.

[0020] To increase the friction between the scraper 3 and the spring steel belt X, the lower ends of the two scrapers 3 are set as opposing planes, and a rubber strip 4 is fixed on the plane. The rubber strip 4 is fixed with epoxy resin adhesive. The material of the rubber strip 4 is perfluoroether rubber (which can withstand acid solutions with a concentration of ≤50% and alkali solutions with a concentration of ≤30%, and has a temperature range of -20℃ to 200℃). The rubber strip 4 is in close contact with the surface of the spring steel belt X, which can effectively scrape off residual liquids and avoid scratching the spring steel belt X.

[0021] After cleaning, the spring steel belt X enters the scraping mechanism. The rubber strips 4 at the lower ends of the two scrapers 3 are in close contact with the surface of the spring steel belt X, scraping away most of the residual cleaning liquid on both sides of the spring steel belt X. The small amount of residual liquid collects in the "V"-shaped drain space and flows back into the cleaning tank 1 through the drain hole 3-1 on the scraper 3. Example

[0022] Based on the second embodiment, in order to accelerate the drying of the surface of the spring steel belt X, an air cavity 3-2 is opened inside the scraper 3, and an air supply structure is set outside the cleaning tank 1. The air supply structure is connected to the air cavity 3-2. The air supply structure includes a fan 5 and a hose 6 set outside the cleaning tank 1. The fan 5 is a centrifugal fan (model CF-11) with a power of 1.1kW, a rated air volume of 1200m³ / h, and a wind pressure of 2000Pa. The hose 6 is made of aging-resistant rubber. The air outlet of the fan 5 is connected to the middle of the hose 6. An air inlet is opened on the front side of the scraper 3 near its upper end. The air inlet is connected to the air cavity 3-2. The two ends of the hose 6 are fixed on the scraper 3 and connected to the air inlet. Several air blowing holes 3-3 arranged in a rectangular array are opened on the outer side of the scraper 3.

[0023] To prevent cleaning fluid from entering the air cavity 3-2 and to accelerate the downward flow of liquid on the spring steel belt X, the air blowing holes 3-3 are arranged at an angle from the inside out downwards. This not only prevents the cleaning fluid from flowing back into the air cavity 3-2, but also allows the airflow to flow downwards along the surface of the spring steel belt X, accelerating the liquid dripping. When the fan 5 is connected to the external power supply and starts, the airflow enters the air chamber 3-2 of the scraper 3 through the hose 6 and the air inlet, and then blows it onto the surface of the spring steel strip X in an inclined downward direction through the air blowing hole 3-3, which accelerates the evaporation and dripping of the residual liquid on the surface of the spring steel strip X, so that the surface of the spring steel strip X dries quickly.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A raw material cleaning device for annular valve plates, comprising a cleaning tank (1) for cleaning spring steel strips (X), wherein a plurality of guide rollers (2) are installed between the front and rear walls of the cleaning tank (1), and adjacent guide rollers (2) are arranged vertically, characterized in that: The front and rear side walls of the discharge end of the cleaning tank (1) are equipped with a scraping mechanism, and the upper part of the scraping mechanism extends out of the cleaning tank (1).

2. The ring-shaped valve plate raw material cleaning apparatus according to claim 1, characterized by: The scraping mechanism includes two symmetrically arranged scrapers (3). The two ends of the scrapers (3) are fixed to the front and rear walls of the cleaning tank (1). A "V"-shaped drainage space is formed between the two scrapers (3). The lower ends of the two scrapers (3) abut against the two sides of the spring steel belt (X).

3. The annular valve plate raw material cleaning equipment according to claim 2, characterized in that: The scraper (3) has several equally spaced drainage holes (3-1) near its lower end. The drainage holes (3-1) penetrate the scraper (3) from the inside to the outside and diagonally downward.

4. The ring-shaped valve plate raw material cleaning apparatus according to claim 3, characterized by: The two scrapers (3) are set on opposite planes at their lower ends, and rubber strips (4) are fixed on the plane.

5. The ring-shaped valve plate raw material cleaning apparatus according to claim 2, characterized by: The scraper (3) has an air cavity (3-2) inside, and an air supply structure is provided outside the cleaning pool (1). The air supply structure is connected to the air cavity (3-2). The scraper (3) has several air holes (3-3) arranged in a rectangular array on its outer side.

6. The ring-shaped valve plate raw material cleaning apparatus according to claim 5, characterized by: The air supply structure includes a fan (5) and a hose (6) installed outside the cleaning pool (1). The air outlet of the fan (5) is connected to the middle of the hose (6). The scraper (3) has an air inlet on its front side near its upper end. The air inlet is connected to the air chamber (3-2). The two ends of the hose (6) are fixed on the scraper (3) and connected to the air inlet.

7. The ring-shaped valve plate raw material cleaning apparatus according to claim 5, characterized by: The air vents (3-3) are arranged at an angle downwards from the inside out.

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