Twin-screw extrusion equipment based on composite short fibers and its usage method

Abstract

The present invention relates to the technical field of twin-screw extrusion equipment, in particular to a twin-screw extrusion equipment based on composite short fibers and its usage method, including a workbench, a control console, a first motor, a speed regulating mechanism, a twin-screw feeding system, and a head. One side of the upper end of the workbench is fixedly connected with a first motor. The top end of the main shaft of the first motor is connected to the speed regulating mechanism. The power output shaft of the speed regulating mechanism is connected to the spiral feeding rod inside the twin-screw feeding system. The other end of the twin-screw feeding system is equipped with a head, and a control console is installed on one side of the twin-screw feeding system. In the present invention, when the material is inside the column shell, the vibration generated during the operation of multiple motors will compact the fluffy short fiber material inside the column shell, thereby improving the feeding accuracy of the feeding mechanism. When the material passes through the bottom of the square shell, it will be blown fluffy again by the wind, which is convenient for uniform mixing by the stirring rod, improving the uniformity of material mixing and further improving the quality of the product after production.

Description

Technical Field

[0001] The present invention relates to the technical field of twin-screw extrusion equipment, and particularly to a twin-screw extrusion equipment based on composite short fibers and its use method. Background Art

[0002] A twin-screw extrusion equipment based on composite short fibers is an industrial equipment for producing thermoplastics containing short fiber reinforcing materials. This kind of equipment is usually used to manufacture reinforced plastic products, such as automotive parts, electronic device casings, building materials, etc.;

[0003] This kind of equipment is very important in the field of composite material processing because it can produce composite material products with excellent mechanical properties and chemical corrosion resistance;

[0004] During the process of putting composite short fibers into the twin-screw extrusion equipment for mixing, if the mixing is uneven, it will affect the quality of the finished product. Therefore, in view of the above problems, a twin-screw extrusion equipment based on composite short fibers and its use method are proposed. Summary of the Invention

[0005] The purpose of the present invention is to provide a twin-screw extrusion equipment based on composite short fibers and its use method to solve the problem that if the mixing is uneven during the process of putting composite short fibers into the twin-screw extrusion equipment for mixing, it will affect the quality of the finished product.

[0006] To achieve the above purpose, the present invention provides the following technical solutions:

[0007] A twin-screw extrusion equipment based on composite short fibers and its use method, including a workbench, a control console, a first motor, a speed regulation mechanism, a twin-screw feeding system and a head. One side of the upper end of the workbench is fixedly connected with a first motor. The top end of the main shaft of the first motor is connected with the speed regulation mechanism. The power output shaft of the speed regulation mechanism is connected with the internal spiral feeding rod of the twin-screw feeding system. The other end of the twin-screw feeding system is installed with a head. One side of the twin-screw feeding system is installed with a control console; above the feeding port of the twin-screw feeding system, a feeding mechanism is installed. Inside the upper end of the feeding mechanism, a connecting mechanism is installed. Outside the middle of the connecting mechanism, a connecting piece is installed. Above the connecting mechanism, a power mechanism is installed. Above the top end of the connecting mechanism, a feeding mechanism is installed; the connecting mechanism includes a cylinder. The inner wall of the upper end of the cylinder is fixedly connected with a feeding mechanism. In the middle of the upper end of the cylinder, there is a second motor. The top end of the main shaft of the second motor is fixedly connected with an output shaft. The outside of the output shaft is fixedly connected with a stirring rod. The feeding mechanism includes a square shell. At both ends of the middle inside of the square shell, inclined plates are welded and fixed. In the middle of the inclined plates, a feeding impeller is installed. In the middle of the feeding impeller, a rotating shaft is welded and fixed. One side of the square shell is provided with an air inlet hole.

[0008] As a further optimized content of the present invention, wherein: the feeding mechanism includes a sleeve, the inner side of the upper end of the sleeve is fixedly connected with a sealing rubber sleeve, the bottom end of the sleeve is fixedly connected with the upper end of the double-screw feeding system housing through bolts, and the upper end of the sleeve is connected with the bottom of the cylinder through the sealing rubber sleeve.

[0009] As a further optimized content of the present invention, wherein: the upper end of the second motor housing is fixedly connected with the bottom end of the feeding mechanism, there are three feeding mechanisms, the feeding mechanisms are annularly and equidistantly distributed at the upper end of the cylinder, the second motor and the upper end of the output shaft are arranged between the feeding mechanisms, the stirring rod is arranged at the lower end of the feeding mechanism, and the stirring rod is arranged in multiple layers.

[0010] As a further optimized content of the present invention, wherein: there are three power mechanisms, the power mechanisms correspond to the feeding mechanisms one by one, and the power mechanisms are embedded in the inner side of the upper end of the cylinder.

[0011] As a further optimized content of the present invention, wherein: the power mechanism includes a power housing, a third motor is installed on the inner side of the upper end of the power housing, a blower fan is installed on the inner side of the bottom end of the power housing, the main shaft of the third motor passes through the square housing and is fixedly connected with the rotating shaft, and the blower fan is aligned with the air inlet hole.

[0012] As a further optimized content of the present invention, wherein: the feeding mechanism includes a column housing, three feeding holes are opened at the bottom end of the column housing, a partition plate is installed in the middle of the inner side of the column housing, the partition plate is arranged between adjacent feeding holes, and the feeding holes correspond to the feeding mechanisms one by one.

[0013] As a further optimized content of the present invention, wherein: the connecting piece includes a flat plate, a central hole is opened in the middle of the flat plate, connecting holes are opened at the four corners of the flat plate, the flat plate is fixedly connected with the middle of the outer wall of the cylinder through the central hole, and the flat plate is fixedly connected with the upper end of the shock absorber through the connecting holes.

[0014] As a further optimized content of the present invention, wherein: there are four shock absorbers, the bottom ends of the shock absorbers are fixedly connected with the workbench, the shock absorbers are arranged on both sides of the double-screw feeding system, the shock absorbers are parallel to each other, and the shock absorbers correspond to the connecting holes one by one.

[0015] As a further optimized content of the present invention, wherein: the central points of the feeding mechanism, the connecting mechanism and the connecting piece are arranged on the same vertical line, and the bottom end of the connecting mechanism extends into the feeding mechanism.

[0016] As a further optimized content of the present invention, wherein: S1: Place the short fibers to be mixed into the feeding mechanism respectively: Different short fibers are placed into the column housing together and are divided by the partition plate;

[0017] S2: The short fibers placed inside the feeding mechanism are conveyed to the bottom of the cylinder by the feeding mechanism: The third motor drives the feeding impeller to rotate at different speeds according to the mixing ratio to complete the batching of various short fibers.

[0018] S3: When the short fibers pass through the bottom of the square shell, they are dispersed: When the short fibers pass through the bottom of the square shell, the air supply fan disperses the short fibers to facilitate mixing by the stirring rod.

[0019] S4: The short fibers enter the bottom of the cylinder for mixing and stirring: The stirring rod mixes various short fibers to ensure the uniformity of the mixed materials after they enter the twin-screw feeding system.

[0020] S5: The mixed short fibers enter the twin-screw feeding system to complete feeding: The uniformly mixed short fibers enter the twin-screw feeding system together to complete the feeding of the short fibers.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0022] 1. In the present invention, when the material is inside the column shell, the vibration generated during the operation of multiple motors will compact the fluffy short fiber material inside the column shell, thereby improving the feeding accuracy of the feeding mechanism. When the material passes through the bottom of the square shell, it will be blown fluffy again by the wind, which is convenient for uniform mixing by the stirring rod, can improve the mixing uniformity of the material, and further improve the quality of the product after production.

[0023] 2. In the present invention, the twin-screw extrusion equipment realizes the efficient mixing and conveying of short fiber reinforced plastics through an accurate speed regulating mechanism and a twin-screw feeding system. The application of shock absorbers reduces the vibration during the operation of the equipment, protects the safety of the equipment and operators, and also improves the service life of the equipment.

[0024] 3. In the present invention, the design of the feeding mechanism and the connecting mechanism simplifies the feeding process, improves the feeding efficiency, the overall structure is compact, the layout is reasonable, saves space, facilitates the installation and maintenance of the equipment, and can significantly improve the extrusion molding efficiency and product quality of short fiber reinforced plastics, meeting the requirements of modern industrial production. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 It is a schematic diagram of the feeding mechanism structure of the present invention;

[0027] Figure 3 It is a schematic diagram of the connecting mechanism structure of the present invention;

[0028] Figure 4Schematic diagram of the feeding mechanism of the present invention;

[0029] Figure 5 Schematic diagram of the power mechanism of the present invention;

[0030] Figure 6 Schematic diagram of the feeding mechanism of the present invention;

[0031] Figure 7 Schematic diagram of the position where the feeding hole of the present invention is opened;

[0032] Figure 8 Schematic diagram of the connecting member of the present invention.

[0033] In the figure: 1, workbench; 2, control console; 3, first motor; 4, speed regulating mechanism; 5, double-screw feeding system; 6, machine head; 7, shock absorber;

[0034] 8, feeding mechanism; 81, sleeve; 82, bolt; 83, sealing rubber sleeve;

[0035] 9, connecting mechanism; 91, cylinder;

[0036] 92, feeding mechanism; 921, square shell; 922, inclined plate; 923, feeding impeller; 924, rotating shaft; 925, air inlet hole;

[0037] 93, second motor; 94, output shaft; 95, stirring rod;

[0038] 10, power mechanism; 101, power housing; 102, third motor; 103, air supply fan;

[0039] 11, feeding mechanism; 111, column shell; 112, feeding hole; 113, partition plate;

[0040] 12, connecting member; 121, flat plate; 122, connecting hole; 123, central hole. Detailed implementation manners

[0041] Please refer to Figure 1-8 , the present invention provides a technical solution:

[0042] Twin-screw extrusion equipment based on composite short fibers and its usage method, including a workbench 1, a control console 2, a first motor 3, a speed regulation mechanism 4, a twin-screw feeding system 5, and a machine head 6. One side of the upper end of the workbench 1 is fixedly connected with the first motor 3. The top end of the main shaft of the first motor 3 is connected to the speed regulation mechanism 4. The power output shaft of the speed regulation mechanism 4 is connected to the internal spiral feeding rod of the twin-screw feeding system 5. The other end of the twin-screw feeding system 5 is equipped with the machine head 6. One side of the twin-screw feeding system 5 is equipped with the control console 2; above the feeding port of the twin-screw feeding system 5, a feeding mechanism 8 is installed. Inside the upper end of the feeding mechanism 8, a connecting mechanism 9 is installed. Outside the middle of the connecting mechanism 9, a connecting piece 12 is installed. Above the connecting mechanism 9, a power mechanism 10 is installed. At the top end of the connecting mechanism 9, a feeding mechanism 11 is installed; the connecting mechanism 9 includes a cylinder 91. The inner wall of the upper end of the cylinder 91 is fixedly connected with a feeding mechanism 92. In the middle of the upper end of the cylinder 91, there is a second motor 93. The top end of the main shaft of the second motor 93 is fixedly connected with an output shaft 94. Outside the output shaft 94, a stirring rod 95 is fixedly connected. The feeding mechanism 92 includes a square shell 921. At both ends of the middle inner side of the square shell 921, inclined plates 922 are welded and fixed. In the middle of the inclined plates 922, a feeding impeller 923 is installed. In the middle of the feeding impeller 923, a rotating shaft 924 is welded and fixed. On one side of the square shell 921, an air inlet hole 925 is opened.

[0043] As a further technical solution of this scheme, the feeding mechanism 8 includes a sleeve 81. The inner side of the upper end of the sleeve 81 is fixedly connected with a sealing rubber sleeve 83. The bottom end of the sleeve 81 is fixedly connected with the upper end of the shell of the twin-screw feeding system 5 through a bolt 82. The upper end of the sleeve 81 is connected to the bottom of the cylinder 91 through the sealing rubber sleeve 83. Through the feeding mechanism 8 set above, the feeding mechanism 92 can be positioned;

[0044] As a further technical solution of this scheme, the upper end of the shell of the second motor 93 is fixedly connected with the bottom end of the feeding mechanism 11. There are three feeding mechanisms 92. The feeding mechanisms 92 are evenly distributed in a ring at the upper end of the cylinder 91. The second motor 93 and the upper end of the output shaft 94 are arranged between the feeding mechanisms 92. The stirring rod 95 is arranged at the lower end of the feeding mechanism 92. The stirring rod 95 is arranged in multiple layers. Through the above settings, the second motor 93 can be stably limited and fixed;

[0045] As a further technical solution of this scheme, there are three power mechanisms 10. The power mechanisms 10 correspond to the feeding mechanisms 92 one by one. The power mechanisms 10 are embedded in the inner side of the upper end of the cylinder 91. The power mechanism 10 includes a power shell 101. Inside the upper end of the power shell 101, a third motor 102 is installed. Inside the bottom end of the power shell 101, a blower 103 is installed. The main shaft of the third motor 102 passes through the square shell 921 and is fixedly connected with the rotating shaft 924. The blower 103 is aligned with the air inlet hole 925. Through the power mechanism 10 set above, a stable power source can be provided for the feeding mechanism 92;

[0046] As a further technical solution for the implementation of this solution, the feeding mechanism 11 includes a columnar shell 111. Three feeding holes 112 are opened at the bottom end of the columnar shell 111. A partition plate 113 is installed in the middle inside the columnar shell 111. The partition plate 113 is arranged between adjacent feeding holes 112. The feeding holes 112 correspond to the feeding mechanism 92 one by one. The setting of the feeding mechanism 11 can feed multiple short fibers simultaneously;

[0047] As a further technical solution for the implementation of this solution, the connecting member 12 includes a flat plate 121. A central hole 123 is opened in the middle of the flat plate 121. Connecting holes 122 are opened at the four corners of the flat plate 121. The flat plate 121 is fixedly connected to the middle of the outer wall of the cylinder 91 through the central hole 123. The flat plate 121 is fixedly connected to the upper end of the shock absorber 7 through the connecting holes 122. The setting of the connecting member 12 can shock-absorb the connecting mechanism 9 through the shock absorber 7;

[0048] As a further technical solution for the implementation of this solution, there are four shock absorbers 7. The bottom ends of the shock absorbers 7 are fixedly connected to the workbench 1. The shock absorbers 7 are arranged on both sides of the double-screw feeding system 5. The shock absorbers 7 are parallel to each other, and the shock absorbers 7 correspond to the connecting holes 122 one by one, further improving the shock-absorbing effect;

[0049] As a further technical solution for the implementation of this solution, the central points of the feeding mechanism 8, the connecting mechanism 9, and the connecting member 12 are set on the same vertical line. The bottom end of the connecting mechanism 9 extends into the feeding mechanism 8. Through the above settings, the stability of the device during operation can be further ensured;

[0050] As a further technical solution for the implementation of this solution, S1: Place the short fibers to be mixed into the feeding mechanism 11 respectively: Different short fibers are placed into the columnar shell 111 together and divided by the partition plate 113;

[0051] S2: Convey the short fibers placed inside the feeding mechanism 11 to the bottom of the cylinder 91 through the feeding mechanism 92: The third motor 102 drives the feeding impeller 923 to rotate at different rotational speeds according to the mixing ratio to complete the batching of multiple short fibers;

[0052] S3: When the short fibers pass through the bottom of the square shell 921, they are blown apart: When the short fibers pass through the bottom of the square shell 921, the blower fan 103 blows the short fibers apart to facilitate mixing by the stirring rod 95;

[0053] S4: The short fibers enter the bottom of the cylinder 91 for mixing and stirring: The stirring rod 95 mixes multiple short fibers to ensure the uniformity of the mixed materials after they enter the double-screw feeding system 5;

[0054] S5: The mixed short fibers enter the internal part of the twin-screw feeding system 5 to complete the feeding: The uniformly mixed short fibers enter the internal part of the twin-screw feeding system 5 together to complete the feeding of the short fibers.

[0055] The description of the above examples is only used to help understand the method and its core idea of the present invention. The above is only the preferred embodiment of the present invention. It should be noted that due to the limited nature of literal expression and objectively infinite specific structures, for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements, refinements or changes can be made, or the above technical features can be combined in an appropriate manner; these improvements, refinements, changes or combinations, or directly applying the concept and technical solution of the invention to other occasions without improvement, shall all be regarded as the protection scope of the present invention.

Claims

1. The twin-screw extrusion equipment based on composite short fibers comprises a workbench (1), a console (2), a first motor (3), a speed regulating mechanism (4), a twin-screw feeding system (5) and a head (6), and is characterized in that: On one side of the upper end of the workbench (1), a first motor (3) is fixedly connected. The top end of the main shaft of the first motor (3) is connected to a speed regulating mechanism (4). The power output shaft of the speed regulating mechanism (4) is connected to the internal screw feeding rod of the twin-screw feeding system (5). The other end of the twin-screw feeding system (5) is equipped with a machine head (6), and a control console (2) is installed on one side of the twin-screw feeding system (5). Above the feeding port of the twin-screw feeding system (5), a feeding mechanism (8) is installed. Inside the upper end of the feeding mechanism (8), a connecting mechanism (9) is installed. Outside the middle of the connecting mechanism (9), a connecting piece (12) is installed. Above the connecting mechanism (9), a power mechanism (10) is installed. At the top of the connecting mechanism (9), a feeding mechanism (11) is installed. The connecting mechanism (9) includes a cylinder (91). Inside the upper end inner wall of the cylinder (91), a feeding mechanism (92) is fixedly connected. In the middle of the upper end of the cylinder (91), a second motor (93) is provided. At the top end of the main shaft of the second motor (93), an output shaft (94) is fixedly connected. Outside the output shaft (94), a stirring rod (95) is fixedly connected. The feeding mechanism (92) includes a square shell (921). At both ends of the inner middle of the square shell (921), inclined plates (922) are welded and fixed. In the middle of the inclined plates (922), a feeding impeller (923) is installed. In the middle of the feeding impeller (923), a rotating shaft (924) is welded and fixed. On one side of the square shell (921), an air inlet hole (925) is opened. The feeding mechanism (8) includes a sleeve (81). Inside the upper end of the sleeve (81), a sealing rubber sleeve (83) is fixedly connected. The bottom end of the sleeve (81) is fixedly connected to the upper end of the outer shell of the twin-screw feeding system (5) through bolts (82). The upper end of the sleeve (81) is connected to the bottom of the cylinder (91) through the sealing rubber sleeve (83). There are three power mechanisms (10). The power mechanisms (10) are in one-to-one correspondence with the feeding mechanism (92). The power mechanisms (10) are embedded in the inner side of the upper end of the cylinder (91). The power mechanism (10) includes a power housing (101). Inside the upper end of the power housing (101), a third motor (102) is installed. Inside the bottom end of the power housing (101), an air supply fan (103) is installed. The main shaft of the third motor (102) passes through the square shell (921) and is fixedly connected to the rotating shaft (924). The air supply fan (103) is aligned with the air inlet hole (925). The feeding mechanism (11) includes a column shell (111). At the bottom end of the column shell (111), three feeding holes (112) are opened. In the middle of the inner side of the column shell (111), a partition plate (113) is installed. The partition plate (113) is arranged between adjacent feeding holes (112). The feeding holes (112) are in one-to-one correspondence with the feeding mechanism (92).

2. The twin-screw extrusion device based on composite short fibers according to claim 1, characterized in that: The upper end of the housing of the second motor (93) is fixedly connected to the bottom end of the feeding mechanism (11). There are three feeding mechanisms (92), which are annularly and equidistantly distributed at the upper end of the cylinder (91). The upper end of the second motor (93) and the output shaft (94) are arranged between the feeding mechanisms (92). The stirring rod (95) is arranged at the lower end of the feeding mechanism (92), and the stirring rod (95) is arranged in multiple layers.

3. The twin-screw extrusion equipment based on composite short fibers according to claim 2, wherein: The connecting piece (12) includes a flat plate (121). A central hole (123) is formed in the middle of the flat plate (121), and connecting holes (122) are formed at the four corners of the flat plate (121). The flat plate (121) is fixedly connected to the middle of the outer wall of the cylinder (91) through the central hole (123), and the flat plate (121) is fixedly connected to the upper end of the shock absorber (7) through the connecting holes (122).

4. The twin-screw extrusion device based on composite short fibers according to claim 3, characterized in that: There are four shock absorbers (7). The bottom ends of the shock absorbers (7) are fixedly connected to the workbench (1). The shock absorbers (7) are arranged on both sides of the double-screw feeding system (5). The shock absorbers (7) are parallel to each other, and there is a one-to-one correspondence between the shock absorbers (7) and the connecting holes (122).

5. The twin-screw extrusion equipment based on composite short fibers according to claim 4, wherein: The central points of the feeding mechanism (8), the connecting mechanism (9), and the connecting piece (12) are located on the same vertical line, and the bottom end of the connecting mechanism (9) extends into the feeding mechanism (8).

6. The method for using the twin-screw extrusion equipment based on composite short fibers according to claim 5, characterized in that: S1: Place the short fibers to be mixed into the feeding mechanism (11) respectively: Different short fibers are placed into the column shell (111) together and are divided by the partition plate (113). S2: Convey the short fibers placed in the feeding mechanism (11) to the bottom of the cylinder (91) through the feeding mechanism (92): The third motor (102) drives the feeding impeller (923) to rotate at different speeds according to the mixing ratio to complete the batching of various short fibers. S3: When the short fibers pass through the bottom of the square shell (921), they are scattered: When the short fibers pass through the bottom of the square shell (921), the air blower (103) scatters the short fibers to facilitate mixing by the stirring rod (95). S4: The short fibers enter the bottom of the cylinder (91) for mixing and stirring: The stirring rod (95) mixes various short fibers to ensure the uniformity of the mixed materials after they enter the double-screw feeding system (5). S5: The mixed short fibers enter the double-screw feeding system (5) to complete feeding: The uniformly mixed short fibers enter the double-screw feeding system (5) together to complete the feeding of the short fibers.

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