Single-screw extruder

Abstract

The utility model discloses a single screw extruder which comprises a supporting base, a conveying sleeve is fixedly installed on the upper end face of the supporting base, the inner side of the conveying sleeve is rotationally connected with a first transmission motor, the tail end of the conveying sleeve is fixedly provided with a first transmission motor, and the upper portion of the tail end of the conveying sleeve is fixedly provided with a feeding end. A first sealing cover is fixedly installed at the front end of the transmission sleeve, and a second sealing cover is installed on the front end face of the first sealing cover. A transmission gear ring is rotationally connected to the inner side of the first sealing cover and the inner side of the second sealing cover, a transmission gear is mounted on one side of the transmission gear ring, a conversion mounting disc is mounted on the inner side of the transmission gear ring, and a plurality of forming discs are mounted on the inner side of the conversion mounting disc. According to the extrusion molding machine, the extrusion molding size can be adjusted by automatically replacing the machine head of the extrusion machine, the requirements of different sizes are met, the machine head is convenient to disassemble, and maintenance and cleaning are convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of extruders, in particular to a single-screw extruder. Background Art

[0002] A screw extruder is an automatic feeding device, available in two types: cold-feed and hot-feed. Both are used to extrude semi-finished and finished rubber products. Screw extruders primarily convey and compact solid materials through the rotating screw, through friction between the barrel's inner wall and the screw's surface. The material gradually heats up in the heated barrel through conduction and friction, transforming from a solid state to a molten state. The molten material is continuously conveyed to the front of the screw and into the die for molding, resulting in a polymer melt with a defined shape.

[0003] The head of the existing extruder controls the size of the extruded molding. When a single-screw extruder is used to extrude the rubber material and a different molding size is required, the head needs to be manually replaced, which can easily affect production efficiency and is troublesome to replace. Therefore, it does not meet the existing needs. We have proposed a single-screw extruder. Utility Model Content

[0004] The purpose of the utility model is to provide a single-screw extruder to solve the problem that the head of the existing extruder controls the size of the extrusion molding proposed in the above background technology. When the single-screw extruder is used to extrude the rubber material and different molding sizes are required, the head needs to be replaced manually, which easily affects the production efficiency and is troublesome to replace.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a single-screw extruder, comprising a support base, a transmission sleeve fixedly mounted on the upper end surface of the support base, a spiral conveying frame rotatably connected to the inner side of the transmission sleeve, a first transmission motor fixedly mounted on the tail end of the transmission sleeve, a feed end fixedly mounted on the upper part of the tail end of the transmission sleeve, a first sealing cover fixedly mounted on the front end of the transmission sleeve, and a second sealing cover mounted on the front end surface of the first sealing cover;

[0006] The first sealing cover and the second sealing cover are rotatably connected to the inner side of a transmission ring gear, a transmission gear is installed on one side of the transmission ring gear, a conversion mounting disk is installed on the inner side of the transmission ring gear, and a plurality of forming disks are installed on the inner side of the conversion mounting disk.

[0007] Preferably, a second transmission motor is fixedly mounted on the rear end face of the first sealing cover, the output end of the second transmission motor passes through the first sealing cover and is fixedly connected to the transmission gear, the transmission gear is meshed with the transmission ring gear through teeth, and the transmission ring gear is fixedly connected to the conversion mounting disk.

[0008] Preferably, a mounting sleeve is installed above the second transmission motor, an adjusting rod is installed on the inner side of the mounting sleeve, the mounting sleeve is fixedly connected to the first sealing cover, one end of the adjusting rod passes through the mounting sleeve and is in contact with one of the forming disks, and the adjusting rod and the mounting sleeve are connected by threads.

[0009] Preferably, the output end of the first transmission motor passes through the transmission sleeve and is fixedly connected to the spiral conveyor frame, and the transmission sleeve is connected to the feed end.

[0010] Preferably, two inspection ports are provided on one side of each of the first sealing cover and the second sealing cover, the diameter of the inspection port is larger than the diameter of the forming disk, multiple forming disks are clamped and installed with the conversion mounting disk, and multiple forming holes are provided on one side of the forming disk, and multiple forming disks are evenly arranged in a circle relative to the center of the conversion mounting disk, and the sizes of the forming holes of multiple forming disks decrease successively in a counterclockwise direction.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] 1. The utility model uses a first transmission motor to spirally pressurize and convey the rubber material through a spiral conveying frame. A plurality of forming holes are provided on one side of the forming disc. The second transmission motor rotates and drives the conversion mounting disc and the forming disc through a transmission gear and a transmission ring gear, thereby being able to replace the forming disc in contact with the transmission sleeve. The multiple forming discs are evenly arranged counterclockwise relative to the conversion mounting disc, and the sizes of the forming holes on the multiple forming discs decrease in sequence counterclockwise. By switching different forming discs, the forming size of the rubber material can be adjusted to meet the needs of forming materials of different sizes.

[0013] 2. The utility model rotates the adjusting rod so that the adjusting rod pushes the forming disk under the guidance of the installation sleeve. An inspection port is provided on one side of the first sealing cover and the second sealing cover, so that the forming disk can be easily installed and disassembled through the inspection port, and the forming disk can be easily inspected and cleaned. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the partial structure of the utility model as a whole;

[0016] Figure 3 It is a schematic cross-sectional structure diagram of the entire utility model;

[0017] Figure 4 It is a schematic cross-sectional structural diagram of the first sealing cover of the utility model.

[0018] In the figure: 1. Support base; 2. Transmission sleeve; 3. First transmission motor; 4. Feed end; 5. First sealing cover; 6. Second sealing cover; 7. Second transmission motor; 8. Mounting sleeve; 9. Adjusting rod; 10. Forming disk; 11. Screw conveyor frame; 12. Conversion mounting disk; 13. Transmission gear; 14. Transmission ring gear. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0020] The first transmission motor 3 (model: YS7134) and the second transmission motor 7 (model: GV50-3.7KW-60-S) mentioned in the present invention can be purchased from the market or obtained through private customization.

[0021] See also Figure 1 and Figure 3 The utility model provides an embodiment: a single-screw extruder, including a supporting base 1, a transmission sleeve 2 is fixedly installed on the upper end surface of the supporting base 1, the inner side of the transmission sleeve 2 is rotatably connected to a spiral conveying frame 11, the tail end of the transmission sleeve 2 is fixedly installed with a first transmission motor 3, the upper part of the tail end of the transmission sleeve 2 is fixedly provided with a feed end 4, the output end of the first transmission motor 3 passes through the transmission sleeve 2 and is fixedly connected to the spiral conveying frame 11, the transmission sleeve 2 is connected with the feed end 4, so that the first transmission motor 3 performs spiral pressurized conveying on the rubber material through the spiral conveying frame 11.

[0022] See also Figure 2 and Figure 4 A first sealing cover 5 is fixedly installed at the front end of the transmission sleeve 2, and a second sealing cover 6 is installed on the front end surface of the first sealing cover 5. The first sealing cover 5 and the second sealing cover 6 are rotatably connected to the inner sides of the transmission ring gear 14. A transmission gear 13 is installed on one side of the transmission ring gear 14, and a conversion mounting disk 12 is installed on the inner side of the transmission ring gear 14. A plurality of molding disks 10 are installed on the inner side of the conversion mounting disk 12. A plurality of molding holes are provided on one side of the molding disk 10. The plurality of molding disks 10 are uniformly arranged in a circle relative to the center of the conversion mounting disk 12. The sizes of the molding holes of the plurality of molding disks 10 decrease in sequence counterclockwise. By replacing different molding disks 10, the size of the extrusion molding can be adjusted.

[0023] See also Figures 1 to 4The rear end face of the first sealing cover 5 is fixedly mounted with a second transmission motor 7, the output end of the second transmission motor 7 passes through the first sealing cover 5 and is fixedly connected to the transmission gear 13, the transmission gear 13 is connected to the transmission ring gear 14 through tooth meshing, and the transmission ring gear 14 is fixedly connected to the conversion mounting disk 12, so that the second transmission motor 7 drives the conversion mounting disk 12 and the forming disk 10 to rotate through the transmission gear 13 and the transmission ring gear 14, thereby being able to replace the forming disk 10 in contact with the transmission sleeve 2.

[0024] Please refer to Figure and Figure 3 A mounting sleeve 8 is installed above the second transmission motor 7, and an adjusting rod 9 is installed on the inner side of the mounting sleeve 8. The mounting sleeve 8 is fixedly connected to the first sealing cover 5. One end of the adjusting rod 9 passes through the mounting sleeve 8 and is in contact with one of the forming disks 10. The adjusting rod 9 is connected to the mounting sleeve 8 by a threaded connection, so that the adjusting rod 9 can push the forming disk 10 when it rotates, making it easy to separate the forming disk 10 from the conversion mounting disk 12 for disassembly.

[0025] See also Figure 2 and Figure 4 Two inspection ports are provided on one side of the first sealing cover 5 and the second sealing cover 6. The diameter of the inspection port is larger than the diameter of the forming disk 10. Multiple forming disks 10 are installed by snap-fitting with the conversion mounting disk 12. The inspection port facilitates the installation and disassembly of the forming disk 10, and facilitates the inspection and cleaning of the forming disk 10.

[0026] During use, the rubber material is injected into the inner side of the transmission sleeve 2 through the feed end 4, the power is turned on, and the first transmission motor 3 is started, so that the first transmission motor 3, under the support of the support base 1, spirally pressurizes and conveys the rubber material through the spiral conveying frame 11. A plurality of forming discs 10 are installed on the inner side of the conversion mounting disc 12, and a plurality of forming holes are provided on one side of the forming disc 10. The rubber material can be shaped when it is extruded through the forming disc 10;

[0027] The second transmission motor 7 is started, so that the second transmission motor 7 rotates and drives the conversion mounting disc 12 and the forming disc 10 through the transmission gear 13 and the transmission ring gear 14 under the support of the first sealing cover 5, thereby being able to replace the forming disc 10 in contact with the transmission sleeve 2. The multiple forming discs 10 are evenly arranged counterclockwise relative to the conversion mounting disc 12, and the sizes of the forming holes on the multiple forming discs 10 decrease in sequence counterclockwise. By switching different forming discs 10, the molding size of the rubber material can be adjusted to meet the needs of molding materials of different sizes;

[0028] By rotating the adjusting rod 9, the adjusting rod 9 pushes the forming disk 10 under the guidance of the installation sleeve 8. An inspection port is provided on one side of the first sealing cover 5 and the second sealing cover 6, so that the forming disk 10 can be easily installed and disassembled through the inspection port, and the forming disk 10 can be easily inspected and cleaned.

[0029] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A single-screw extruder, comprising a support base (1), characterized in that: A transmission sleeve (2) is fixedly mounted on the upper end surface of the support base (1), a spiral conveying frame (11) is rotatably connected to the inner side of the transmission sleeve (2), a first transmission motor (3) is fixedly mounted on the tail end of the transmission sleeve (2), a feed end (4) is fixedly provided on the upper portion of the tail end of the transmission sleeve (2), a first sealing cover (5) is fixedly mounted on the front end of the transmission sleeve (2), and a second sealing cover (6) is mounted on the front end surface of the first sealing cover (5); A transmission gear ring (14) is rotatably connected to the inner sides of the first sealing cover (5) and the second sealing cover (6); a transmission gear (13) is installed on one side of the transmission gear ring (14); a conversion mounting disk (12) is installed on the inner side of the transmission gear ring (14); and a plurality of forming disks (10) are installed on the inner side of the conversion mounting disk (12).

2. A single-screw extruder according to claim 1, characterized in that: A second transmission motor (7) is fixedly mounted on the rear end surface of the first sealing cover (5); an output end of the second transmission motor (7) passes through the first sealing cover (5) and is fixedly connected to a transmission gear (13); the transmission gear (13) is connected to a transmission ring gear (14) through inter-tooth meshing; and the transmission ring gear (14) is fixedly connected to a conversion mounting disk (12).

3. A single screw extruder according to claim 2, characterized in that: A mounting sleeve (8) is installed above the second transmission motor (7), an adjusting rod (9) is installed on the inner side of the mounting sleeve (8), the mounting sleeve (8) is fixedly connected to the first sealing cover (5), one end of the adjusting rod (9) passes through the mounting sleeve (8) and is in contact with one of the forming discs (10), and the adjusting rod (9) is connected to the mounting sleeve (8) by a thread.

4. A single-screw extruder according to claim 1, characterized in that: The output end of the first transmission motor (3) passes through the transmission sleeve (2) and is fixedly connected to the spiral conveying frame (11); the transmission sleeve (2) is connected to the feed end (4).

5. A single screw extruder according to claim 1, characterized in that: Two inspection ports are provided on one side of each of the first sealing cover (5) and the second sealing cover (6), the diameter of the inspection ports being larger than the diameter of the forming disc (10), a plurality of the forming discs (10) being mounted by snap-fitting with the conversion mounting disc (12), a plurality of forming holes being provided on one side of the forming disc (10), the plurality of the forming discs (10) being evenly arranged in a circle relative to the center of the conversion mounting disc (12), and the sizes of the forming holes of the plurality of the forming discs (10) decreasing in sequence in a counterclockwise direction.

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