Double-screw extrusion bulking machine for starch modification

Abstract

The utility model discloses a twin-screw extrusion bulking machine for starch modification, which comprises a twin-screw extrusion bulking machine body, the top of the twin-screw extrusion bulking machine body is respectively and fixedly connected with a driving motor, a fixed gear ring and a feed bin, the inner wall of the feed bin is movably connected with a movable screw rod, and the movable screw rod is fixedly connected with the fixed gear ring. The outer wall of the movable lead screw is movably connected with a movable sliding block, the bottom of the movable sliding block is movably connected with a movable rod, and the bottom of the movable rod is movably connected with a movable baffle. And the movable baffle is driven by the movable rod to be opened or closed in a reciprocating manner, so that starch can be quantitatively supplied, the stability of starch processing is ensured, and the situation that blockage is easily caused by excessive starch supply is prevented.

Description

TECHNICAL FIELD

[0001] The utility model belongs to starch processing technical direction, concretely relates to a kind of double-screw extrusion expander for starch modification. BACKGROUND

[0002] Starch (amylum) is high molecular carbohydrate, is the poly of glucose molecule polymerization, and various devices need to be used when processing starch, including double-screw extrusion expander, it is one of multi-screw extrusion expander, and it is developed on the basis of single-screw extrusion expander, two screws are placed side by side in the barrel of double-screw extrusion expander, so it is called double-screw extrusion expander, and it is widely used in cereal food, leisure food, nutritional rice flour, tissue protein, rice reconstruction, starch gelatinization, caramel product, pet food, aquatic feed production and other fields.

[0003] The existing double-screw extrusion expander is inconvenient for quantitative feeding of starch during use, so that too much starch is prone to occur during feeding, thereby causing blockage, and further reducing the stability of double-screw extrusion expander operation. This phenomenon has become a problem to be solved by personnel in the field. UTILITY MODEL CONTENT

[0004] The utility model aims at the existing technology to provide a kind of double-screw extrusion expander for starch modification to solve the problems in the above background.

[0005] In order to solve the above technical problems, the utility model provides the following technical scheme: a kind of double-screw extrusion expander for starch modification, including double-screw extrusion expander body, the top of double-screw extrusion expander body is respectively fixedly connected with driving motor, fixed gear ring and feed bin, the inner wall of feed bin is movably connected with movable lead screw, the outer wall of movable lead screw is movably connected with movable sliding block, the bottom of movable sliding block is movably connected with movable rod, the bottom of movable rod is movably connected with movable baffle.

[0006] One end of the movable screw rod is fixedly connected with a planet support, an outer wall of the planet support is movably connected with a driven shaft, one end of the driven shaft is fixedly connected with a planet gear, the output shaft of the driving motor is fixedly connected with a driving shaft through a shaft coupling, one end of the driving shaft is fixedly connected with a movable gear ring, an inner wall of the movable gear ring is provided with an accommodating groove, the center of the accommodating groove is fixedly connected with a fixed protrusion, an inner wall of the accommodating groove is fixedly connected with a first tooth block, an outer wall of the fixed protrusion is fixedly connected with a second tooth block, the double-screw extruder body, the driving motor, the fixed gear ring, the feeding bin, the movable screw rod, the movable sliding block, the movable rod, the movable baffle, the planet support, the driven shaft, the planet gear, the driving shaft, the movable gear ring, the accommodating groove, the fixed protrusion, the first tooth block and the second tooth block are provided, which facilitates the reciprocating rotation of the movable screw rod, so that the movable screw rod drives the movable rod to reciprocate through the movable sliding block, the movable rod drives the movable baffle to reciprocally open or close, and thus the starch can be quantitatively fed, the stability of starch processing is ensured, and the condition that the starch is easily blocked due to excessive feeding is prevented.

[0007] Preferably, the movable screw rod is provided with threads at both ends, and the threads at both ends of the movable screw rod are distributed in opposite directions. Specifically, the movable sliding blocks are symmetrically distributed at both ends of the movable screw rod, and the movable sliding blocks are connected with the movable screw rod through threads, so that the movable screw rod facilitates the opposite or opposite sliding of the movable sliding blocks at both ends.

[0008] Preferably, the movable sliding block is rotatably connected with the movable rod through a shaft, the movable rod is rotatably connected with the movable baffle through a shaft, and the movable baffle is rotatably connected with the inner wall of the feeding bin through a shaft. Specifically, the movable baffle is symmetrically distributed in two, so that when the movable sliding block slides, the movable baffle is driven to rotate through the movable rod, and then the movable baffle is opened or closed.

[0009] Preferably, the planet gear is rotatably connected with the planet support through the driven shaft, and the planet support is distributed in a "cross" shape, so that the planet support supports the planet gear through the driven shaft.

[0010] Preferably, one end of the planet gear extends into the inside of the movable gear ring, and the other end of the planet gear is engaged with the fixed gear ring. Specifically, the planet gears are distributed at equal angles along the axial center line of the fixed gear ring, so that the planet gears perform revolution through the fixed gear ring when they perform rotation.

[0011] As preferred, the first tooth blocks are angularly distributed with several groups on the inner wall of the accommodating groove, and each group of the first tooth blocks is angularly distributed with several, and specifically, a spacing is arranged between each group of the first tooth blocks, and the first tooth blocks are matched with the planetary gear, thereby facilitating the rotating of the movable gear ring in one direction through the first tooth blocks driving the planetary gear.

[0012] As preferred, the second tooth blocks are angularly distributed with several groups on the outer wall of the fixed protrusion, and each group of the second tooth blocks is angularly distributed with several, and specifically, a spacing is arranged between each group of the second tooth blocks, and the second tooth blocks are angularly distributed with the first tooth blocks, thereby facilitating the rotating of the movable gear ring in the other direction through the second tooth blocks driving the planetary gear.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] (1) through setting up double screw extruder body, driving motor, fixed gear ring, feed bin, movable screw rod, movable sliding block, movable rod, movable baffle, planet carrier, driven shaft, planetary gear, drive shaft, movable gear ring, accommodating groove, fixed protrusion, first tooth block and second tooth block, it is convenient to drive movable screw rod to rotate back and forth, thereby making movable screw rod drive movable rod to rotate back and forth through movable sliding block, making movable rod drive movable baffle to open or close back and forth, further make can quantitative feed to starch, guarantee the stability of starch processing, prevent the condition that starch feed is too much and is easy to block. BRIEF DESCRIPTION OF DRAWINGS

[0015] The accompanying drawings are included to provide a further understanding of the utility model, and constitute a part of the specification, and are used to explain the utility model together with embodiments of the utility model, and do not constitute the limitation to the utility model. In the drawings:

[0016] Figure 1 It is the overall structure schematic diagram of the utility model;

[0017] Figure 2 It is the local section of the utility model shows the schematic diagram;

[0018] Figure 3 It is the local three-dimensional schematic diagram of the utility model;

[0019] Figure 4 It is the movable gear ring three-dimensional schematic diagram of the utility model.

[0020] In the figure: 1, double screw extruder body; 2, driving motor; 3, fixed gear ring; 4, feed bin; 5, movable screw rod; 6, movable sliding block; 7, movable rod; 8, movable baffle; 9, planetary support; 10, driven shaft; 11, planetary gear; 12, drive shaft; 13, movable gear ring; 14, containing groove; 15, fixed protrusion; 16, first tooth block; 17, second tooth block. DETAILED DESCRIPTION

[0021] The technical scheme of the utility model will be further and non-restrictively explained in detail in combination with the preferred embodiments and the drawings thereof. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0022] Please refer to Figures 1-4 The utility model provides technical scheme: a starch modification is with double screw extruder, including double screw extruder body 1, the top of double screw extruder body 1 is fixedly connected with driving motor 2, fixed gear ring 3 and feed bin 4 respectively, the inner wall of feed bin 4 is movably connected with movable screw rod 5, the outer wall of movable screw rod 5 is movably connected with movable sliding block 6, the bottom of movable sliding block 6 is movably connected with movable rod 7, the bottom of movable rod 7 is movably connected with movable baffle 8.

[0023] One end of movable screw rod 5 is fixedly connected with planetary support 9, the outer wall of planetary support 9 is movably connected with driven shaft 10, one end of driven shaft 10 is fixedly connected with planetary gear 11, the output shaft of driving motor 2 is fixedly connected with drive shaft 12 through shaft coupling, one end of drive shaft 12 is fixedly connected with movable gear ring 13, the inner wall of movable gear ring 13 is provided with containing groove 14, the center of containing groove 14 is fixedly connected with fixed protrusion 15, the inner wall of containing groove 14 is fixedly connected with first tooth block 16, the outer wall of fixed protrusion 15 is fixedly connected with second tooth block 17, by being provided with double screw extruder body 1, driving motor 2, fixed gear ring 3, feed bin 4, movable screw rod 5, movable sliding block 6, movable rod 7, movable baffle 8, planetary support 9, driven shaft 10, planetary gear 11, drive shaft 12, movable gear ring 13, containing groove 14, fixed protrusion 15, first tooth block 16 and second tooth block 17, it is convenient to drive movable screw rod 5 to rotate reciprocatingly, so that movable screw rod 5 drives movable rod 7 to rotate reciprocatingly through movable sliding block 6, so that movable rod 7 drives movable baffle 8 to open or close reciprocatingly, and then starch can be quantitatively fed, the stability of starch processing is ensured, and the condition that starch is easily blocked due to excessive starch feeding is prevented.

[0024] Preferably, both ends of the movable lead screw 5 are provided with threads, and the threads at both ends of the movable lead screw 5 are distributed in opposite directions. Specifically, the movable sliders 6 are symmetrically distributed at both ends of the movable lead screw 5, and the movable sliders 6 are connected to the movable lead screw 5 by threads, thereby facilitating the movable lead screw 5 to drive the movable sliders 6 at both ends to slide in opposite directions.

[0025] Preferably, the movable slider 6 is rotatably connected to the movable rod 7 via a shaft, and the movable rod 7 is rotatably connected to the movable baffle 8 via a shaft, and the movable baffle 8 is rotatably connected to the inner wall of the feed bin 4 via a shaft. Specifically, there are two movable baffles 8 symmetrically distributed, which facilitates the movable slider 6 to drive the movable baffle 8 to rotate via the movable rod 7 when sliding, thereby opening or closing the movable baffles 8.

[0026] Preferably, the planetary gear 11 is rotatably connected to the planetary support 9 via the driven shaft 10, and the planetary support 9 is arranged in a "+" shape, which facilitates the planetary support 9 to support the planetary gear 11 via the driven shaft 10.

[0027] Preferably, one end of the planetary gear 11 extends into the interior of the movable gear ring 13, and the other end of the planetary gear 11 meshes with the fixed gear ring 3. Specifically, the planetary gear 11 is distributed at equal angles along the axial center line of the fixed gear ring 3, which facilitates the planetary gear 11 to revolve through the fixed gear ring 3 when it rotates.

[0028] Preferably, the first tooth blocks 16 are distributed in several groups at equal angles on the inner wall of the receiving groove 14, and each group of first tooth blocks 16 has several of them at equal angles. Specifically, a gap is set between each group of first tooth blocks 16, and the first tooth blocks 16 cooperate with the planetary gear 11, thereby facilitating the movable gear ring 13 to drive the planetary gear 11 to rotate in one direction through the first tooth blocks 16.

[0029] Preferably, the second tooth blocks 17 are distributed in several groups at equal angles on the outer wall of the fixed protrusion 15, and each group of second tooth blocks 17 has several of them at equal angles. Specifically, there is a gap between each group of second tooth blocks 17, and the second tooth blocks 17 and the first tooth blocks 16 are staggered, which facilitates the movable gear ring 13 to drive the planetary gear 11 to rotate in another direction through the second tooth blocks 17.

[0030] In use, first, the driving motor 2 is started, so that the driving shaft 12 of the driving motor 2 rotates, so that the driving shaft 12 drives the movable gear ring 13 to rotate, so that the movable gear ring 13 drives the planetary gear 11 to rotate in one direction through the first tooth block 16, and drives the planetary gear 11 to rotate in the other direction through the second tooth block 17, so that the planetary gear 11 rotates back and forth, at this time, the planetary gear 11 rotates around the sun through the meshing of the fixed gear ring 3, so that the planetary gear 11 drives the movable lead screw 5 to rotate back and forth through the planetary support 9, so that the movable lead screw 5 drives the two movable sliding blocks 6 to slide back and forth, so that the movable sliding block 6 drives the movable baffle 8 to open and close intermittently through the movable rod 7, thereby facilitating the quantitative feeding of starch, avoiding the easy blocking caused by excessive feeding, and ensuring the stability of the double-screw extrusion expander body 1.

[0031] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", etc. indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation on the present application.

[0032] Finally, it should be pointed out that: the above examples are only used to illustrate the technical solutions of the present application, and are not limited thereto. Although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing examples, or make equivalent substitutions for part of the technical features, and these modifications or substitutions do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A twin-screw extruder for starch modification, comprising a twin-screw extruder body (1), characterized in that: The top of the twin-screw extruder body (1) is fixedly connected to a drive motor (2), a fixed gear ring (3), and a feed bin (4). The inner wall of the feed bin (4) is movably connected to a movable lead screw (5). The outer wall of the movable lead screw (5) is movably connected to a movable slider (6). The bottom of the movable slider (6) is movably connected to a movable rod (7). The bottom of the movable rod (7) is movably connected to a movable baffle (8). One end of the movable lead screw (5) is fixedly connected to a planetary support (9), the outer wall of the planetary support (9) is movably connected to a driven shaft (10), one end of the driven shaft (10) is fixedly connected to a planetary gear (11), the output shaft of the drive motor (2) is fixedly connected to a drive shaft (12) through a coupling, one end of the drive shaft (12) is fixedly connected to a movable gear ring (13), the inner wall of the movable gear ring (13) is provided with a receiving groove (14), the center of the receiving groove (14) is fixedly connected to a fixed protrusion (15), the inner wall of the receiving groove (14) is fixedly connected to a first tooth block (16), and the outer wall of the fixed protrusion (15) is fixedly connected to a second tooth block (17).

2. The twin-screw extruder for starch modification according to claim 1, characterized in that: Both ends of the movable lead screw (5) are provided with threads, and the threads at both ends of the movable lead screw (5) are distributed in opposite directions.

3. The twin-screw extruder for starch modification according to claim 1, characterized in that: The movable slider (6) is rotatably connected to the movable rod (7) via a shaft, and the movable rod (7) is rotatably connected to the movable baffle (8) via a shaft, and the movable baffle (8) is rotatably connected to the inner wall of the feed hopper (4) via a shaft.

4. The twin-screw extruder for starch modification according to claim 1, characterized in that: The planetary gear (11) is rotatably connected to the planetary support (9) via the driven shaft (10), and the planetary support (9) is arranged in a cross shape.

5. A twin-screw extruder for starch modification according to claim 1, characterized in that: One end of the planetary gear (11) extends into the interior of the movable gear ring (13), and the other end of the planetary gear (11) meshes with the fixed gear ring (3).

6. The twin-screw extruder for starch modification according to claim 1, characterized in that: The first tooth block (16) is distributed in several groups at equal angles on the inner wall of the receiving groove (14), and each group of first tooth blocks (16) is distributed in several groups at equal angles.

7. A twin-screw extruder for starch modification according to claim 1, characterized in that: The second tooth block (17) is distributed in several groups at equal angles on the outer wall of the fixed protrusion (15), and each group of second tooth blocks (17) is distributed in several groups at equal angles.

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