Feeding bin for double-screw extruder

Abstract

The utility model discloses a feeding bin for a double-screw extruder, and relates to the technical field of feeding bins. Comprising a first bin body, an annular cover body is arranged on the edge of the top end of the first bin body, an inner round cover body is arranged in the middle of the top end of the first bin body, U-shaped connecting blocks are symmetrically fixed to the circumferences of the inner round cover body and the bottom face of the annular cover body, and a premixing assembly is arranged on the annular cover body and comprises a rotating annular block rotationally arranged between the inner round cover body and the annular cover body; and a plurality of second bin bodies are fixedly inserted in the circumference of the rotating ring block. Through the arrangement of the pre-mixing assembly, the driving motor enables the driving rod and the driving gear to rotate, and under the action of the inner gear ring strip and the rotating gear, the rotating direction of the whole rotating ring block and the second bin bodies is opposite to the rotating direction of the whole vertical rod and the edge scraping plate; and multiple raw materials discharged into the first bin body from the multiple second bin bodies are premixed, so that the uniformity is improved to a certain extent.

Description

Technical Field

[0001] The utility model relates to the technical field of feeding bins, in particular to a feeding bin for a twin-screw extruder. Background Art

[0002] The screw extruder relies on the pressure and shear force generated by the rotation of the screw to fully plasticize and evenly mix the material, and then form it through the die. Plastic extruders can be basically classified into twin-screw extruders, single-screw extruders, multi-screw extruders, and screwless extruders.

[0003] An existing feeding bin for a twin-screw extruder (authorization announcement number: CN213500734U) has the following defects: the above-mentioned feeding bin is provided with a sealing ring to prevent material leakage when the device is spliced ​​with a guide pipe for guiding material, which effectively improves the practicality of the device. However, when multiple raw materials are added, the multiple raw materials need to be pre-mixed before adding them to the twin-screw extruder to ensure the uniformity of the raw materials. For this reason, the present utility model is proposed. Utility Model Content

[0004] The purpose of the utility model is to provide a feeding bin for a twin-screw extruder to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a feeding bin for a twin-screw extruder, comprising a first bin body, a ring cover body is provided at the top edge of the first bin body, an inner circular cover body is provided at the middle part of the top of the first bin body, a U-shaped connecting block is fixed circumferentially symmetrically between the inner circular cover body and the bottom surface of the ring cover body, a premixing assembly is provided on the ring cover body, the premixing assembly comprises a rotating ring block rotatably arranged between the inner circular cover body and the ring cover body, a plurality of second bin bodies are circumferentially inserted and fixed on the rotating ring block, a rotating assembly is provided on the second bin body, an inner tooth ring strip is fixed on the inner side surface of the rotating ring block, a driving gear is meshed on one side of the inner tooth ring strip, a vertical rod is rotatably inserted in the middle of the inner circular cover body, and a plurality of side scraping rods are circumferentially fixed on the vertical rod.

[0006] Preferably, the side scraping rod is in adaptive contact with the inner wall of the first bin body, a connecting rod is fixed between the side scraping rod and the vertical rod, a rotating gear is fixed on the upper part of the vertical rod, and the rotating gear is engaged with the driving gear.

[0007] Preferably, an arch block is fixed on the inner circular cover body, a driving rod is fixedly inserted in the middle of the driving gear, the driving rod and the vertical rod are rotatably inserted on the arch block, and the top end of the driving rod is connected to a driving motor installed on the arch block.

[0008] Preferably, the discharge pipe at the bottom of the second bin body passes through the rotating ring block and is fixed between adjacent second bin bodies. A bin cover is provided on the top of the second bin body, and a feed pipe is provided on the bin cover.

[0009] Preferably, a connecting rod is rotatably inserted in the middle of the bin cover, an arched plate is rotatably sleeved on the connecting rod, the arched plate is fixed on the bin cover, and belts are connected to two adjacent connecting rods.

[0010] Preferably, vertical scraping rods are symmetrically provided on both sides of the connecting rod, a plurality of cross rods are connected between the vertical scraping rods and the connecting rod, and a rotating motor is connected to the top end of the connecting rod at one side, and the rotating motor is mounted on the arch plate.

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

[0012] The feeding bin of the twin-screw extruder is provided with a pre-mixing component, and the driving motor causes the driving rod and the driving gear to rotate. Under the action of the internal gear ring and the rotating gear, the rotating ring block and the multiple second bin bodies as a whole rotate in the opposite direction to the vertical rod and the side scraper as a whole, so that the multiple raw materials discharged from the multiple second bin bodies into the first bin body are pre-mixed, which improves the uniformity to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0014] Figure 2 It is a cross-sectional view of the utility model;

[0015] Figure 3 It is a first three-dimensional structural diagram of a partial structure of the utility model;

[0016] Figure 4 This is a second three-dimensional structural diagram of a partial structure of the utility model.

[0017] In the figure: 1. First bin body; 101. Ring cover body; 102. Inner circular cover body; 103. U-shaped connecting block; 104. Arch block; 2. Rotating ring block; 201. Inner gear ring; 202. Driving gear; 203. Rotating gear; 204. Vertical rod; 205. Side scraper; 206. Connecting rod; 3. Second bin body; 301. Bin cover; 302. Feed pipe; 303. Connecting rod; 304. Belt; 305. Arch plate; 306. Vertical scraper; 307. Cross bar. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] During the use of a twin-screw extruder, a feeding bin is required to add a single or multiple raw materials into the twin-screw extruder. The feeding bin provided by the present invention is specifically used for pre-mixing multiple raw materials to ensure that the raw materials are mixed more evenly. During the use of this feeding bin, it is necessary to perform installation and other preparatory work in advance to ensure the normal use of this feeding bin.

[0020] like Figures 1-4 As shown, the utility model provides a technical solution: a feeding bin for a twin-screw extruder, comprising a first bin body 1, a ring cover body 101 is provided at the top edge of the first bin body 1, an inner circular cover body 102 is provided at the middle part of the top of the first bin body 1, a U-shaped connecting block 103 is fixed circumferentially symmetrically to the bottom surface of the inner circular cover body 102 and the ring cover body 101, a pre-mixing assembly is provided on the ring cover body 101, the pre-mixing assembly comprises a rotating ring block 2 rotatably arranged between the inner circular cover body 102 and the ring cover body 101, a plurality of second bin bodies 3 are circumferentially inserted and fixed on the rotating ring block 2, a rotating assembly is provided on the second bin body 3, an inner tooth ring strip 201 is fixed on the inner side surface of the rotating ring block 2, a driving gear 202 is meshed on one side of the inner tooth ring strip 201, a vertical rod 204 is rotatably inserted in the middle part of the inner circular cover body 102, and a plurality of side scraping rods 205 are circumferentially symmetrically fixed on the vertical rod 204.

[0021] In the embodiment, the side scraper rod 205 is adapted to contact the inner wall of the first bin body 1, and a connecting rod 206 is fixed between the side scraper rod 205 and the vertical rod 204. A rotating gear 203 is fixed on the upper part of the vertical rod 204, and the rotating gear 203 is engaged with the driving gear 202. The inner circular cover body 102 and the ring cover body 101 are fixed as a whole through the U-shaped connecting block 103, and the bottom horizontal block of the U-shaped connecting block 103 is a triangular block to avoid accumulation of raw materials.

[0022] In the embodiment, an arch block 104 is fixed on the inner circular cover body 102, a driving rod is fixedly inserted in the middle of the driving gear 202, the driving rod and the vertical rod 204 are rotatably inserted on the arch block 104, and the top of the driving rod is connected to a driving motor installed on the arch block 104, wherein the driving gear 202 drives the inner gear ring 201 and the rotating ring block 2 to rotate in the same direction as a whole, and the driving gear 202 drives the rotating gear 203 to rotate in the opposite direction.

[0023] In the embodiment, the discharge pipe at the bottom of the second bin body 3 passes through the rotating ring block 2 and is fixed between adjacent second bin bodies 3. A bin cover 301 is provided on the top of the second bin body 3, and a feed pipe 302 is provided on the bin cover 301. A connecting rod 303 is rotatably inserted in the middle of the bin cover 301, and an arch plate 305 is rotatably sleeved on the connecting rod 303. The arch plate 305 is fixed on the bin cover 301, and a belt 304 is connected to two adjacent connecting rods 303. Among them, the bin cover 301 and the feed pipe 302 are existing technologies.

[0024] In the embodiment, vertical scraping rods 306 are symmetrically arranged on both sides of the connecting rod 303, and multiple cross rods 307 are connected between the vertical scraping rods 306 and the connecting rod 303. The top of the connecting rod 303 located on one side is connected to a rotating motor, and the rotating motor is installed on the arch plate 305. The driving motor and the rotating motor are servo motors with self-locking function in the prior art. Through the setting of the premixing component, the driving motor causes the driving rod and the driving gear 202 to rotate. Under the action of the inner gear ring 201 and the rotating gear 203, the rotating ring block 2 and the multiple second bin bodies 3 as a whole rotate in the opposite direction to the vertical rod 204 and the side scraper as a whole, so that the multiple raw materials discharged from the multiple second bin bodies 3 into the first bin body 1 are premixed, which improves the uniformity to a certain extent.

[0025] Working principle: When using the feeding bin, install the feeding bin on the twin-screw extruder, control the drive motor and the rotating motor to start, so that when the rotating ring block 2 and multiple second bin bodies 3 rotate as a whole, the vertical rod 204 and the side scraper rod 205 rotate and stir in opposite directions as a whole, so that the raw materials in the first bin body 1 are mixed more evenly. Driven by multiple belts 304, multiple connecting rods 303 and vertical scraper rods 306 rotate as a whole to prevent the raw materials in the second bin body 3 from adhering to the inner wall.

[0026] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is limited by the accompanying embodiments and their equivalents.

Claims

1. A feeding bin for a twin-screw extruder, comprising a first bin body (1), characterized in that: A ring cover (101) is provided at the top edge of the first bin body (1), an inner circular cover (102) is provided at the middle of the top of the first bin body (1), a U-shaped connecting block (103) is fixed circumferentially symmetrically to the bottom surface of the inner circular cover (102) and the ring cover (101), a pre-mixing assembly is provided on the ring cover (101), the pre-mixing assembly comprises a rotating ring block (2) rotatably arranged between the inner circular cover (102) and the ring cover (101), a plurality of second bin bodies (3) are circumferentially inserted and fixed on the rotating ring block (2), a rotating assembly is provided on the second bin body (3), an inner tooth ring strip (201) is fixed on the inner side surface of the rotating ring block (2), a driving gear (202) is meshed on one side of the inner tooth ring strip (201), a vertical rod (204) is rotatably inserted in the middle of the inner circular cover (102), and a plurality of side scraping rods (205) are circumferentially symmetrically fixed on the vertical rod (204).

2. A feeding bin for a twin-screw extruder according to claim 1, characterized in that: The side scraping rod (205) is in adaptive contact with the inner wall of the first bin body (1); a connecting rod (206) is fixed between the side scraping rod (205) and the vertical rod (204); a rotating gear (203) is sleeved and fixed on the upper part of the vertical rod (204); and the rotating gear (203) is meshed with the driving gear (202).

3. A feeding bin for a twin-screw extruder according to claim 2, characterized in that: An arch block (104) is fixed on the inner circular cover (102), a driving rod is fixedly inserted in the middle of the driving gear (202), the driving rod and the vertical rod (204) are rotatably inserted on the arch block (104), and the top end of the driving rod is connected to a driving motor installed on the arch block (104).

4. A feeding bin for a twin-screw extruder according to claim 1, characterized in that: The discharge pipe at the bottom of the second bin body (3) passes through the rotating ring block (2) and is fixed between adjacent second bin bodies (3). A bin cover (301) is provided on the top of the second bin body (3), and a feed pipe (302) is provided on the bin cover (301).

5. A feeding bin for a twin-screw extruder according to claim 4, characterized in that: A connecting rod (303) is rotatably inserted in the middle of the bin cover (301), an arched plate (305) is rotatably sleeved on the connecting rod (303), the arched plate (305) is fixed on the bin cover (301), and belts (304) are connected to two adjacent connecting rods (303).

6. A feeding bin for a twin-screw extruder according to claim 5, characterized in that: Vertical scraping rods (306) are symmetrically arranged on both sides of the connecting rod (303), and a plurality of cross rods (307) are connected between the vertical scraping rods (306) and the connecting rod (303). A rotating motor is connected to the top end of the connecting rod (303) located on one side, and the rotating motor is mounted on the arch plate (305).

Images