Quick assembly and disassembly structure for pelletizing cutter head group of double-screw extruder

Abstract

The utility model discloses a quick assembly and disassembly structure for a pelletizing cutter head group of a double-screw extruder, which comprises the double-screw extruder, a feed port is arranged above one end of the double-screw extruder, an extrusion port is arranged at the other end of the double-screw extruder, plastic particles or powder is added into an extruder cylinder through the feed port by the double-screw extruder, and the pelletizing cutter head group of the double-screw extruder is formed. The plastic is heated, fused and plasticized by two rotating screws, and then the plastic is extruded and molded through an extrusion port; the cutterhead assembly is mounted on an extrusion opening of the double-screw extruder through a quick assembly and disassembly structure, and plastic is cut into particles through the cutterhead assembly. According to the cutter head assembly, the cutter head assembly is rapidly and stably mounted and dismounted in a magnetic attraction mode, a splicing mode of the positioning block and the positioning groove and a locking mode of the spring and the locking ball, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to a twin-screw extruder, in particular to a quick assembly and disassembly structure of a pelletizing cutter disc group of the twin-screw extruder. Background Art

[0002] In the field of plastic processing, twin-screw extruder is a commonly used equipment for heating, melting and plasticizing plastic granules or powders and extruding them into shapes. During the extrusion process, the extruded plastic needs to be cut into granules of a certain length for subsequent processing or use. Therefore, the pelletizer disc assembly is an important part of the twin-screw extruder.

[0003] The traditional twin-screw extruder pelletizing cutter assembly installation structure is usually complicated and requires multiple disassembly and installation. The operation is not only cumbersome but also prone to errors. At the same time, since the installation position and accuracy of the cutter assembly have a great influence on the cutting effect, a fast and stable loading and unloading structure is needed to improve production efficiency and product quality. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a quick assembly and disassembly structure of a pelletizing cutter disc group of a twin-screw extruder to solve the problems existing in the background technology.

[0005] The utility model twin-screw extruder pelletizing cutter disc quick assembly and disassembly structure is realized by the following technical scheme, including:

[0006] A twin-screw extruder, wherein a feed port is provided at one end of the twin-screw extruder and an extrusion port is provided at the other end. Plastic particles or powder are added into the extruder barrel through the feed port through the twin-screw extruder, and the two rotating screws heat, melt and plasticize the plastic, and then the plastic is extruded through the extrusion port to form the plastic;

[0007] The cutter disc assembly is installed on the extrusion port of the twin-screw extruder through a quick assembly and disassembly structure, and the plastic is pelletized through the cutter disc assembly.

[0008] As a preferred technical solution, a magnetic column is provided on the back of the cutter disc assembly, and a magnetic groove corresponding to the magnetic column is provided on the twin-screw extruder. The magnetic column is inserted into the magnetic groove of the cutter disc assembly, thereby realizing auxiliary installation of the cutter disc assembly.

[0009] As a preferred technical solution, the quick-loading and unloading structure includes a positioning block arranged on the side of the extrusion port and a positioning groove arranged on the cutter disc assembly; the cutter disc assembly is spliced ​​with each other through the positioning block and the positioning groove, and is fixed by a locking structure.

[0010] As a preferred technical solution, the locking structure includes a spring groove and a locking ball arranged on the positioning block;

[0011] The locking ball limiter is set at the end of the spring groove, and a spring is set between the locking ball and the spring groove. The locking ball is placed in the locking hole of the positioning groove under the compression of the spring, thereby realizing the installation of the cutter disc assembly.

[0012] As a preferred technical solution, the cutter disc assembly includes a cutting seat and a blade mounting seat;

[0013] The cutting seat is provided with mounting positions on both sides, the blade mounting seat is fixed to the mounting position of the cutting seat by means of locking screws, and the positioning groove is provided on the cutting seat;

[0014] The cutting seat is provided with a discharge port corresponding to the extrusion port, and a cutting groove is provided at the discharge port;

[0015] A guide plate is arranged below the blade mounting seat, a blade is fixedly arranged below the guide plate, and the cutting end of the blade is placed in the cutting groove;

[0016] A lifting motor is fixedly arranged above the blade mounting seat, and an output end of the lifting motor passes through the blade mounting seat and is connected to the guide plate, thereby driving the blade to pelletize the plastic.

[0017] The beneficial effects of the utility model are:

[0018] 1. The utility model realizes fast and stable installation and disassembly of the cutter head assembly through magnetic attraction, splicing of the positioning block and the positioning groove, and locking of the spring and the locking ball, thereby improving production efficiency.

[0019] 2. The utility model makes the pelletizing process more accurate and efficient through structures such as a cutting seat, a blade mounting seat and a guide plate, thereby improving product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0022] Figure 2 This is a schematic diagram of the structure of a twin-screw extruder of the utility model;

[0023] Figure 3 This is a schematic diagram of the installation of the cutter head assembly of the utility model;

[0024] Figure 4It is a schematic diagram of the locking structure of the utility model.

[0025] Description of reference numerals:

[0026] 1. Twin-screw extruder; 2. Cutter assembly; 3. Feed inlet; 4. Extrusion outlet; 5. Magnetic column; 6. Magnetic groove; 7. Positioning block; 8. Positioning groove; 9. Spring groove; 10. Locking ball; 11. Cutting seat; 12. Blade mounting seat; 13. Mounting position; 14. Discharge port; 15. Cutting groove; 16. Guide plate; 17. Blade; 18. Lifting motor. DETAILED DESCRIPTION

[0027] All features disclosed in this specification, or steps in all methods or processes disclosed, except mutually exclusive features and / or steps, can be combined in any manner.

[0028] like Figure 1-Figure 4 As shown, the utility model is a twin-screw extruder pelletizing cutter disc group quick assembly and disassembly structure, comprising:

[0029] A twin-screw extruder 1, wherein a feed port 3 is provided at one end of the twin-screw extruder 1, and an extrusion port 4 is provided at the other end. Plastic particles or powder are added into the extruder barrel through the feed port 3 through the twin-screw extruder 1, and are heated, melted and plasticized by two rotating screws, and then the plastic is extruded and formed through the extrusion port 4;

[0030] The cutter disc assembly 2 is installed on the extrusion port 4 of the twin-screw extruder 1 through a quick assembly and disassembly structure, and the cutter disc assembly 2 is used to pelletize the plastic.

[0031] A magnetic column 5 is provided on the back of the cutter disc assembly 2, and a magnetic groove 6 corresponding to the magnetic column 5 is provided on the twin-screw extruder 1; the magnetic column 5 is inserted into the magnetic groove 6 of the cutter disc assembly 2, which simplifies the installation process of the cutter disc assembly 2 and improves work efficiency.

[0032] In order to further ensure the stability and reliability of the cutter disc assembly 2, the quick loading and unloading structure also includes a positioning block 7 arranged on the side of the extrusion port 4 and a positioning groove 8 arranged on the cutter disc assembly 2; through the mutual splicing of the positioning block 7 and the positioning groove 8, the cutter disc assembly 2 can be accurately fixed on the twin-screw extruder 1; in addition, the locking structure fixes the cutter disc assembly 2 to prevent it from shifting during operation; the locking structure includes a spring groove 9 and a locking ball 10 arranged on the positioning block 7; the locking ball 10 is placed in the locking hole of the positioning groove 8 under the extrusion of the spring, thereby achieving stable installation of the cutter disc assembly 2.

[0033] The cutter disc assembly 2 includes a cutting seat 11 and a blade mounting seat 12; mounting positions 13 are provided on both sides of the cutting seat 11, and the blade mounting seat 12 is fixed to the mounting position 13 of the cutting seat 11 by means of locking screws; a positioning groove 8 is provided on the cutting seat 11 to ensure the overall stability of the cutter disc assembly 2; a discharge port 14 corresponding to the extrusion port 4 is provided on the cutting seat 11, and a cutting groove 15 is provided at the discharge port 14; a guide plate 16 is provided below the blade mounting seat 12, and a blade 17 is fixedly provided below the guide plate 16, and the cutting end of the blade 17 is placed in the cutting groove 15, so that the blade 17 can accurately pelletize the plastic extruded from the extrusion port 4; a lifting motor 18 is also fixedly provided above the blade mounting seat 12, and the guide plate 16 and the blade 17 can be moved up and down by the drive of the lifting motor 18.

[0034] The utility model discloses a twin-screw extruder pelletizing cutter disc quick assembly and disassembly structure, which realizes quick and stable assembly and disassembly of the cutter disc assembly 2 through magnetic attraction, the splicing of the positioning block and the positioning groove, and the locking method of the spring and the locking ball; at the same time, structures such as the cutting seat, the blade mounting seat and the guide plate make the pelletizing process more precise and efficient; this quick assembly and disassembly structure not only improves the production efficiency, but also reduces the operation difficulty and labor intensity.

[0035] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that are not conceived through creative work should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope defined in the claims.

Claims

1. A quick assembly and disassembly structure for a pelletizing cutter disc assembly of a twin-screw extruder, characterized in that: include: A twin-screw extruder (1), wherein a feed port (3) is disposed above one end of the twin-screw extruder (1), and an extrusion port (4) is disposed at the other end. Plastic particles or powder are added into the extruder barrel through the feed port (3) through the twin-screw extruder (1), and are heated, melted and plasticized by two rotating screws, and then the plastic is extruded through the extrusion port (4) to form the plastic. A cutter disc assembly (2) is installed on an extrusion port (4) of a twin-screw extruder (1) via a quick assembly and disassembly structure, and plastic is pelletized via the cutter disc assembly (2).

2. The quick assembly and disassembly structure of the pelletizing cutter disc assembly of a twin-screw extruder according to claim 1, characterized in that: A magnetic column (5) is arranged on the back of the cutter disc assembly (2), and a magnetic groove (6) corresponding to the magnetic column (5) is arranged on the twin-screw extruder (1). The magnetic column (5) is inserted into the magnetic groove (6) of the cutter disc assembly (2), thereby realizing auxiliary installation of the cutter disc assembly (2).

3. The quick assembly and disassembly structure of the pelletizing cutter disc assembly of a twin-screw extruder according to claim 1, characterized in that: The quick assembly and disassembly structure comprises a positioning block (7) arranged on the side of the extrusion port (4) and a positioning groove (8) arranged on the cutter disc assembly (2); the cutter disc assembly (2) is spliced ​​with each other through the positioning block (7) and the positioning groove (8) and is fixed by a locking structure.

4. The quick assembly and disassembly structure of the pelletizing cutter disc assembly of a twin-screw extruder according to claim 3 is characterized in that: The locking structure comprises a spring groove (9) and a locking ball (10) arranged on the positioning block (7); The locking ball (10) is limitedly arranged at the end of the spring groove (9), and a spring is arranged between the locking ball (10) and the spring groove (9). The locking ball (10) is placed in the locking hole of the positioning groove (8) under the pressure of the spring, thereby realizing the installation of the cutter disc assembly (2).

5. The quick assembly and disassembly structure of the pelletizing cutter disc assembly of a twin-screw extruder according to claim 1, characterized in that: The cutter disc assembly (2) comprises a cutting seat (11) and a blade mounting seat (12); The cutting seat (11) is provided with mounting positions (13) on both sides, the blade mounting seat (12) is fixed to the mounting position (13) of the cutting seat (11) by means of screws, and the positioning groove (8) is provided on the cutting seat (11); The cutting seat (11) is provided with a discharge port (14) corresponding to the extrusion port (4), and a cutting groove (15) is provided at the discharge port (14); A guide plate (16) is arranged below the blade mounting seat (12), a blade (17) is fixedly arranged below the guide plate (16), and a cutting end of the blade (17) is placed in the cutting groove (15).

6. The quick assembly and disassembly structure of the pelletizing cutter disc assembly of a twin-screw extruder according to claim 5, characterized in that: A lifting motor (18) is fixedly arranged above the blade mounting seat (12), and an output end of the lifting motor (18) passes through the blade mounting seat (12) and is connected to the guide plate (16), thereby driving the blade (17) to pelletize the plastic.

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