Cylinder structure of nickel-based tungsten carbide alloy twin-screw extruder

Abstract

The utility model relates to the technical field of extruder accessories, and discloses a nickel-based tungsten carbide alloy double-screw extruder cylinder structure which comprises an extruder, a detachable cylinder is mounted on one side of the extruder, and a plurality of detection components which conform to the shape of the interior of the cylinder and are used for crack detection on the inner wall of the cylinder are arranged in the cylinder; by arranging the detection assembly, the collection assembly and the moving assembly, when the extruder is used for production, the moving assembly is firstly used, the detection assembly is put into the cylinder to detect whether the inner wall has cracks or not, and the collection assembly can be used for collecting sundries scraped by the detection assembly during detection, so that the detection speed is high, and the detection efficiency is improved. And the inside of the barrel can be cleaned, so that the inner wall of the barrel is prevented from being corroded due to adhesion of produced sundries, and the service life of the barrel is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of extruder accessories, in particular to a nickel-based tungsten carbide alloy twin-screw extruder barrel structure. Background Art

[0002] Extruder is a type of plastic machinery that originated in the 18th century. Extruder heads can be divided into right-angle heads and bevel heads based on the direction of the material flow and the angle between the centerline of the screw. Screw extruders rely on the pressure and shear force generated by the rotation of the screw to fully plasticize and evenly mix the materials and form them through the die. [2] Plastic extruders can be basically classified into twin-screw extruders, single-screw extruders, and the less common multi-screw extruders and screwless extruders. Extruder products have a wide range of applications, so the optimization of extruder components is also necessary.

[0003] For example, in the Chinese utility model patent with the announcement number CN214983072U, a barrel of a twin-screw extruder is disclosed. In the above-mentioned prior art, although the raw materials extruded and conveyed by the barrel are heated and heat compensation is performed in time, so as to effectively make the temperature of the extruded raw materials consistent with the required temperature, and prevent the raw material temperature from being reduced, resulting in the waste of raw materials and affecting the yield of the goods, the barrel will be affected by the high-temperature material during the extrusion process, which will lead to problems such as thermal stress and thermal expansion and contraction caused by temperature changes. When the barrel is used for a long time or the quality is not up to standard, wear and cracking will occur inside because of the above problems. Small cracks will not affect production. Once the crack gap is large, it will have a more serious impact on production. The gap on the inner wall of the barrel is not easy to observe with the naked eye. Only each maintenance can know whether there is a gap. When the gap is generated, it cannot be known as soon as possible, which will affect production. Therefore, it is necessary to design a nickel-based tungsten carbide alloy twin-screw extruder barrel structure that can detect the gap after each production and processing. Utility Model Content

[0004] In order to solve the technical problem that when the barrel is used for a long time or the quality is not up to standard, wear and cracking will occur inside because of the above problems, small cracks will not affect production, but once the crack gaps become larger, it will have a more serious impact on production, and the gaps on the inner wall of the barrel are not easy to observe with the naked eye. Only each maintenance can know whether there are gaps. When the gaps are generated, it is impossible to know as soon as possible, which will affect production. The utility model provides a nickel-based tungsten carbide alloy twin-screw extruder barrel structure.

[0005] The utility model is implemented by the following technical scheme: a nickel-based tungsten carbide alloy twin-screw extruder barrel structure, including an extruder, a detachable barrel is installed on one side of the extruder, a plurality of detection components that conform to the internal shape of the barrel and detect cracks on the inner wall of the barrel are arranged inside the barrel, a collection component is arranged on one side of each of the detection components for scraping dirt off the inner wall of the barrel for cleaning and collection, and a moving component is arranged on each of the detection components for moving the detection component.

[0006] According to the technical solution, before the extruder is put into production each time, the detection component is moved to the inside of the barrel using the moving component to detect whether the inside of the barrel is cracked.

[0007] As a further improvement of the above-mentioned scheme, the detection assembly includes a scraper plate that is slidably fitted with the inner wall of the cylinder and is arranged in a circular shape, a connecting column arranged inside the scraper plate, a plurality of first connecting rods fixedly mounted on the outer surface of the connecting column and each having a sliding hole, a second connecting rod that is slidably mounted inside each sliding hole, and a detection ball that is rotatably mounted at one end of each second connecting rod, one end of each of the second connecting rods passes through the scraper plate, and the outer surface of each of the detection balls is fitted with the inner wall of the cylinder.

[0008] Through the above technical solution, the detection ball slides on the inner wall of the cylinder and generates vibration when encountering cracks, so that people know that a gap has occurred.

[0009] As a further improvement of the above solution, a limit plate is fixedly mounted on the outer surface of each second connecting rod, and a push spring is mounted on the outer surface of each second connecting rod, one end of which is fixedly mounted on the limit plate and the other end of which is fixedly mounted on the first connecting rod.

[0010] Through the above technical solution, the pushing spring will keep the detection ball in contact with the inner wall of the cylinder at all times, making it easy to detect cracks and vibrations.

[0011] As a further improvement of the above scheme, the connecting column is set as a hollow cylinder, and a sliding groove is opened at one end of the connecting column. The collecting assembly includes a mounting plate slidably mounted on the outer surface of the connecting column, a collecting plate fixedly mounted on one side of the mounting plate, a connecting plate arranged inside the sliding groove and fixedly installed on both ends of the sliding groove and the inner wall of the mounting plate, and a pushing rod arranged inside the connecting column and fixedly installed on the connecting plate.

[0012] Through the above technical solution, the scraper plate will scrape off the debris on the inner wall of the cylinder while moving, and then use the sticky collection plate to collect it.

[0013] As a further improvement of the above scheme, the outer surface sliding sleeve of the push rod is provided with a connecting ring fixedly installed between the outer surface and the inner wall of the connecting column, both sides of one end of the connecting column are fixedly installed with fixing plates fixedly installed with the inner wall of the scraper plate, and one end of the push rod is fixedly installed with an extrusion plate.

[0014] Through the above technical solution, by pushing the extrusion plate, the collection plate can squeeze and stick to collect the debris.

[0015] As a further improvement of the above scheme, the moving assembly includes a moving plate fixedly mounted on the connecting ring, a third connecting rod rotatably mounted with the moving plate and having a moving hole, and a fourth connecting rod slidably mounted inside the moving hole and fixedly mounted on the extruder at one end.

[0016] Through the above technical solution, when detection is not needed, the third connecting rod is slid to take out the detection component to avoid affecting production.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] The utility model arranges a detection component, a collecting component and a moving component. When the extruder is produced, the moving component is first used to put the detection component into the cylinder to detect whether the inner wall has cracks. During the detection, the collecting component can also be used to collect the debris scraped off by the detection component. In this way, the detection is not only fast and the number of detections is large, but also the inside of the cylinder can be cleaned to prevent the produced debris from sticking to and corroding the inner wall of the cylinder, thereby extending the service life of the cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the structure of the utility model having a mobile component;

[0021] Figure 3 It is a schematic diagram of the structure of the utility model having a detection component;

[0022] Figure 4 It is a structural schematic diagram of the utility model having a collecting component.

[0023] Description of main symbols:

[0024] 1. Extruder; 2. Cylinder; 301. Scraper plate; 302. Connecting column; 303. First connecting rod; 304. Second connecting rod; 305. Detection ball; 401. Mounting plate; 402. Collecting plate; 403. Connecting plate; 404. Push rod; 501. Moving plate; 502. Third connecting rod; 503. Fourth connecting rod; 6. Limiting plate; 7. Push spring; 8. Connecting ring; 9. Fixed plate; 10. Extrusion plate. DETAILED DESCRIPTION

[0025] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0026] Please combine Figure 1-Figure 4 A nickel-based tungsten carbide alloy twin-screw extruder barrel structure of this embodiment includes an extruder 1, a detachable barrel 2 is installed on one side of the extruder 1, and a plurality of detection components that conform to the internal shape of the barrel 2 and detect cracks on the inner wall of the barrel 2 are arranged inside the barrel 2, and a collecting component that scrapes the inner wall of the barrel 2 for cleaning and collection is arranged on one side of each detection component, and a moving component that moves the detection component is arranged on each detection component.

[0027] Combination Figure 2 and Figure 3 The detection component includes a scraper plate 301 that is slidably fitted with the inner wall of the cylinder 2 and is arranged in a circular ring shape, a connecting column 302 arranged inside the scraper plate 301, a plurality of first connecting rods 303 fixedly installed on the outer surface of the connecting column 302 and each having a sliding hole, a second connecting rod 304 that is slidably installed inside each sliding hole, and a detection ball 305 that is rotatably installed at one end of each second connecting rod 304, one end of each second connecting rod 304 passes through the scraper plate 301, the outer surface of each detection ball 305 is fitted with the inner wall of the cylinder 2, the outer surface of each second connecting rod 304 is fixedly sleeved with a limit plate 6, the outer surface of each second connecting rod 304 is sleeved with a push spring 7 with one end fixedly installed with the limit plate 6 and the other end fixedly installed with the first connecting rod 303, the detection ball 305 slides on the inner wall of the cylinder 2, and will vibrate when encountering cracks, letting people know that a gap has occurred.

[0028] Combination Figure 3 and Figure 4The connecting column 302 is a hollow cylinder, and a sliding groove is provided at one end of the connecting column 302. The collecting assembly includes a mounting plate 401 slidably sleeved on the outer surface of the connecting column 302, a collecting plate 402 fixedly mounted on one side of the mounting plate 401, a connecting plate 403 arranged inside the sliding groove and penetrating the sliding groove and the inner wall of the mounting plate 401 at both ends, and a pushing rod 404 arranged inside the connecting column 302 and fixedly mounted on the connecting plate 403. The outer surface sliding sleeve of the pushing rod 404 is provided with a connecting ring 8 fixedly mounted on the outer surface and the inner wall of the connecting column 302. Both sides of one end of the connecting column 302 are fixedly mounted with fixing plates 9 fixedly mounted on the inner wall of the scraping plate 301. One end of the pushing rod 404 is fixedly mounted with an extruding plate 10. The scraping plate 301 will scrape off the debris on the inner wall of the cylinder 2 while moving, and then use the sticky collecting plate 402 for sticky collection.

[0029] Combination Figure 2 The moving assembly includes a moving plate 501 fixedly mounted on the connecting ring 8, a third connecting rod 502 rotatably mounted with the moving plate 501 and having a moving hole, and a fourth connecting rod 503 slidably mounted inside the moving hole and fixedly mounted with the extruder 1 at one end. When detection is not needed, the third connecting rod 502 is slid to take out the detection assembly to avoid affecting production.

[0030] The implementation principle of a nickel-based tungsten carbide alloy twin-screw extruder barrel structure in the embodiment of the present application is as follows: when the extruder 1 is used for production work, the third connecting rod 502 is pulled, and then the moving plate 501 is rotated to put the scraper plate 301 into the barrel 2. When the scraper plate 301 enters the barrel 2, it will contact the inner wall of the barrel 2, thereby scraping and cleaning the inner wall of the barrel 2, and scraping off the debris remaining from the previous production from the inner wall. During the movement of the scraper plate 301, a plurality of offset detection balls 305 will also slide in contact with the inner wall of the barrel 2. Under the push of the push spring 7, if there is a crack on the inner wall of the barrel 2, when the detection ball 305 rolls over, it will collide with the gap under the push of the push spring 7. Not only will there be a certain sound, but the vibration of the impact will also be transmitted to the second connecting rod 304. The second connecting rod 304 will transmit the vibration to the scraper plate 301, allowing the staff holding the scraper plate 301 to feel it. If the vibration is not obvious, you can slide it multiple times to confirm. When there is no gap, there will be no vibration and sound, and the scraped debris will also be inside the cylinder 2. At this time, push the extrusion plate 10. Under the push of the extrusion plate 10, the sticky collection plate 402 will stick to the debris. After the inspection is completed, slide the third connecting rod 502 to remove the scraper plate 301, so as to complete the inspection of whether the inner wall of the cylinder 2 is cracked and has gaps and clean the inner wall of the cylinder 2 from the last production and processing.

[0031] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A nickel-based tungsten carbide alloy twin-screw extruder barrel structure, comprising an extruder (1), a detachable barrel (2) being installed on one side of the extruder (1), characterized in that: The cylinder (2) is provided with a plurality of detection components conforming to the internal shape of the cylinder (2) for detecting cracks on the inner wall of the cylinder (2), one side of each detection component is provided with a collection component for scraping dirt off the inner wall of the cylinder (2) for cleaning and collection, and each detection component is provided with a moving component for moving the detection component.

2. A nickel-based tungsten carbide alloy twin-screw extruder barrel structure as claimed in claim 1, characterized in that: The detection component comprises a scraper plate (301) which is slidably fitted with the inner wall of the cylinder (2) and is arranged in a circular ring shape, a connecting column (302) arranged inside the scraper plate (301), a plurality of first connecting rods (303) which are fixedly mounted on the outer surface of the connecting column (302) and each of which has a sliding hole, a second connecting rod (304) which is slidably mounted inside each sliding hole, and a detection ball (305) which is rotatably mounted at one end of each second connecting rod (304), one end of each second connecting rod (304) passes through the scraper plate (301), and the outer surface of each detection ball (305) is fitted with the inner wall of the cylinder (2).

3. A nickel-based tungsten carbide alloy twin-screw extruder barrel structure as claimed in claim 2, characterized in that: The outer surface of each second connecting rod (304) is fixedly sleeved with a limit plate (6), and the outer surface of each second connecting rod (304) is sleeved with a push spring (7) with one end fixedly mounted to the limit plate (6) and the other end fixedly mounted to the first connecting rod (303).

4. A nickel-based tungsten carbide alloy twin-screw extruder barrel structure as claimed in claim 2, characterized in that: The connecting column (302) is a hollow cylindrical body, and a sliding groove is provided at one end of the connecting column (302). The collecting assembly comprises a mounting plate (401) slidably mounted on the outer surface of the connecting column (302), a collecting plate (402) fixedly mounted on one side of the mounting plate (401), a connecting plate (403) which is arranged inside the sliding groove and is fixedly mounted on both ends of the sliding groove and the inner wall of the mounting plate (401), and a pushing rod (404) which is arranged inside the connecting column (302) and is fixedly mounted on the connecting plate (403).

5. A nickel-based tungsten carbide alloy twin-screw extruder barrel structure as claimed in claim 4, characterized in that: The outer surface sliding sleeve of the push rod (404) is provided with a connecting ring (8) whose outer surface is fixedly mounted to the inner wall of the connecting column (302); both sides of one end of the connecting column (302) are fixedly mounted with fixing plates (9) fixedly mounted to the inner wall of the scraping plate (301); and one end of the push rod (404) is fixedly mounted with an extrusion plate (10).

6. A nickel-based tungsten carbide alloy twin-screw extruder barrel structure as claimed in claim 5, characterized in that: The moving assembly comprises a moving plate (501) fixedly mounted on a connecting ring (8), a third connecting rod (502) rotatably mounted on the moving plate (501) and having a moving hole, and a fourth connecting rod (503) slidably mounted inside the moving hole and fixedly mounted on the extruder (1) at one end.

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