Double-screw extruder for food processing

Abstract

The utility model discloses a double-screw extruder for food processing, and relates to the technical field of double-screw extruders. The device comprises a base, one side of the top of the base is fixedly connected with a first motor, the output end of the first motor is fixedly connected with a coupler, and one side of the coupler is fixedly connected with a reduction gear box. By adopting a double-screw extrusion technology, products such as rice, coarse grains and the like can be relatively high in curing degree, relatively good in taste and relatively good in product quality stability, meanwhile, compared with a single screw and double screws, the applicability is relatively wide, the rice can be extruded and cured, the coarse grains and medicinal and edible products can also be cured, starch particles in rice grains are fully gelatinized, and the quality of the rice grains is improved. As for coarse grains, the tough cell wall structure of the coarse grains can be effectively destroyed through double-screw extrusion, more nutritional ingredients can be released, meanwhile, the taste is remarkably improved, the coarse grains become softer, and the original roughness of the coarse grains is reduced.

Description

Technical Field

[0001] This utility model belongs to the technical field of twin-screw extruders, and in particular relates to a twin-screw extruder for food processing. Background Technology

[0002] In modern industrial production, especially in the fields of food, plastics, and chemicals, various materials are often processed by crushing, plasticizing, and molding. With the continuous development of industrial technology, higher requirements have been placed on the precision, efficiency, and consistency of material processing and product quality. Although single-screw extruders have improved the efficiency and some quality issues in food processing to a certain extent, their limitations have gradually become apparent when faced with complex material characteristics and diverse processing needs.

[0003] When processing materials with high viscosity and poor flowability, single-screw extruders are prone to problems such as poor material conveying and uneven mixing, resulting in unstable product quality. The mixing effect of single-screw extruders is limited, and in some food processing scenarios that require uniform mixing of multiple ingredients, it is difficult to ensure the consistency of product composition, which affects the stability of product quality. In addition, single-screw extruders have limited control over product shape and particle size, making it difficult to meet the market's demand for refined foods.

[0004] To address these issues, we provide a twin-screw extruder for food processing. Utility Model Content

[0005] The purpose of this invention is to provide a twin-screw extruder for food processing. By combining the twin-screw extruder body and the feeder assembly, it solves the problem that existing twin-screw extruders cannot ensure sufficient and uniform mixing in the initial stage, resulting in uneven distribution of nutrients in the final food product.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.

[0007] This utility model relates to a twin-screw extruder for food processing, comprising a base, a first motor fixedly connected to one side of the top of the base, a coupling fixedly connected to the output end of the first motor, a reduction gearbox fixedly connected to one side of the coupling, a twin-screw extruder body fixedly connected to the output end of the reduction gearbox, a feeder assembly fixedly connected to the top of the twin-screw extruder body, the feeder assembly comprising a housing, the bottom of the housing communicating with the top of the twin-screw extruder body, a cover fixedly connected to the top of the housing, a mounting bracket fixedly connected to the top of the cover, a housing fixedly connected to the top of the mounting bracket, a second motor fixedly connected to one side of the housing, a rotating rod fixedly connected to the output end of the second motor, one side of the rotating rod penetrating into the inner cavity of the housing, a cam fixedly connected to the surface of the rotating rod, springs fixedly connected to both sides of the bottom of the inner cavity of the housing, a connecting plate fixedly connected to the top of the spring, the top of the connecting plate contacting the cam, a fixing rod fixedly connected to the bottom of the connecting plate, the bottom of the fixing rod penetrating into the inner cavity of the housing and fixedly connected to a third motor, an agitator fixedly connected to the output end of the third motor, and the bottom of the agitator penetrating into the inner cavity of the housing.

[0008] The present invention is further configured such that the stirrer includes a stirring shaft, the top of the stirring shaft is fixedly connected to the output end of a third motor, a stirring frame is fixedly connected to the bottom of the stirring shaft, and a stirring rod is fixedly connected to the opposite side of the stirring frame.

[0009] The present invention is further configured such that a brush plate is fixedly connected to one side of the stirring rack, and one side of the brush plate is in contact with the inner wall of the outer shell.

[0010] The present invention is further configured such that a liquid feed pipe is connected to the top of one side of the outer shell, a solenoid valve is provided on the surface of the liquid feed pipe, and a feed pipe is connected to the top of the rear end of the outer shell.

[0011] The present invention is further configured such that a pad is fixedly connected to the bottom of the base, and the pads are arranged symmetrically.

[0012] The present invention is further configured such that a fixed frame is fixedly connected to the top of the base, and a touch screen is fixedly connected to the top of the fixed frame.

[0013] The present invention is further configured such that a die head is connected to one side of the twin-screw machine body, and a cutting machine is provided on one side of the die head.

[0014] The present invention is further configured such that connecting blocks are fixedly connected to both the front and rear ends of the connecting plate, and sliding rods are slidably connected to the inner cavity of the connecting blocks, with both ends of the sliding rods fixedly connected to the inner wall of the box.

[0015] The present invention has the following beneficial effects.

[0016] 1. This utility model utilizes twin-screw extrusion technology to achieve higher cooking levels, better taste, and improved product quality stability in products such as rice and whole grains. Compared to single-screw extrusion, twin-screw extrusion has wider applicability. In addition to extruding and cooking rice, it can also cook whole grains and products that are both food and medicine, allowing the starch granules in the rice grains to fully gelatinize, resulting in a smoother and more delicate texture. For whole grains, twin-screw extrusion can effectively break down their tough cell wall structure, releasing more nutrients and significantly improving the taste, making them softer and reducing the original roughness of whole grains.

[0017] 2. This utility model involves placing food ingredients inside the outer shell. After starting the second motor, the second motor drives the rotating rod to rotate, which in turn drives the cam to rotate. During the rotation of the cam, one end contacts the connecting plate, enabling the connecting plate to reciprocate. A spring is installed at the bottom of the connecting plate to reset it. The connecting plate drives the fixed rod to move, which in turn drives the third motor to move. The third motor drives the stirrer below to reciprocate vertically. After starting the third motor, the food ingredients added inside the outer shell can be evenly and thoroughly mixed. This solves the problem of poor material conveying and uneven mixing that easily occurs when using a single-screw extruder to process materials with high viscosity and poor flowability in the prior art. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0019] Figure 1 This is a perspective view of a twin-screw extruder for food processing.

[0020] Figure 2 This is a rear-view perspective view of a twin-screw extruder for food processing.

[0021] Figure 3 This is a perspective view of a feeder assembly in a twin-screw extruder for food processing.

[0022] Figure 4 This is a cross-sectional view of the outer shell of a twin-screw extruder for food processing.

[0023] Figure 5 This is a perspective view of the second motor and its connection structure in a twin-screw extruder for food processing.

[0024] In the attached diagram: 1. Base; 2. First motor; 3. Coupling; 4. Reduction gearbox; 5. Twin-screw extruder body; 6. Feeder assembly; 601. Outer shell; 602. Cover; 603. Mounting bracket; 604. Housing; 605. Second motor; 606. Rotating rod; 607. Cam; 608. Spring; 609. Connecting plate; 610. Fixing rod; 611. Third motor; 612. Agitator; 612a. Agitating shaft; 612b. Agitating frame; 612c. Agitating rod; 7. Liquid feed pipe; 8. Solenoid valve; 9. Feed pipe; 10. Foot pad; 11. Touch screen; 12. Cutting machine; 13. Connecting block; 14. Slide rod. Detailed Implementation

[0025] The technical solutions of the present utility model will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Example 1

[0027] Please see Figure 1-5 This utility model relates to a twin-screw extruder for food processing, comprising a base 1, a first motor 2 fixedly connected to one side of the top of the base 1, a coupling 3 fixedly connected to the output end of the first motor 2, a reduction gearbox 4 fixedly connected to one side of the coupling 3, a twin-screw extruder body 5 fixedly connected to the output end of the reduction gearbox 4, a feeder assembly 6 fixedly connected to the top of the twin-screw extruder body 5, the feeder assembly 6 comprising a housing 601, the bottom of the housing 601 communicating with the top of the twin-screw extruder body 5, a cover 602 fixedly connected to the top of the housing 601, a mounting bracket 603 fixedly connected to the top of the cover 602, a housing 604 fixedly connected to the top of the mounting bracket 603, and a fixed housing 604 on one side of the housing 604. A second motor 605 is connected, and a rotating rod 606 is fixedly connected to the output end of the second motor 605. One side of the rotating rod 606 extends into the inner cavity of the housing 604. A cam 607 is fixedly connected to the surface of the rotating rod 606. Springs 608 are fixedly connected to both sides of the bottom of the inner cavity of the housing 604. A connecting plate 609 is fixedly connected to the top of the springs 608. The top of the connecting plate 609 contacts the cam 607. A fixing rod 610 is fixedly connected to the bottom of the connecting plate 609. The bottom of the fixing rod 610 extends through the inner cavity of the housing 604 and is fixedly connected to a third motor 611. A stirrer 612 is fixedly connected to the output end of the third motor 611. The bottom of the stirrer 612 extends into the inner cavity of the outer shell 601.

[0028] Specifically: Base 1 is the supporting part of the overall structure of the device, ensuring the overall stability of the device. The first motor 2, coupling 3 and reduction gearbox 4 are the driving components of the twin-screw extruder 5, driving the twin-screw extruder 5 to run stably and achieve efficient extrusion. The cover 602 is set on the top of the outer shell 601, which facilitates the inspection and maintenance of the internal structure of the outer shell 601 and makes it convenient for maintenance personnel to perform daily maintenance. The spring 608 drives the connecting plate 609 to reset, and through the reciprocating cycle of the cam 607, the connecting plate 609 can be driven to perform reciprocating vertical movement to increase the mixing effect of the stirrer 612 below, and to mix food raw materials at different heights inside the outer shell 601, thereby greatly improving the uniformity of raw material mixing.

[0029] Example 2

[0030] Please see Figure 1-5 Based on Embodiment 1, the stirrer 612 includes a stirring shaft 612a. The top of the stirring shaft 612a is fixedly connected to the output end of the third motor 611. A stirring frame 612b is fixedly connected to the bottom of the stirring shaft 612a. A stirring rod 612c is fixedly connected to the opposite side of the stirring frame 612b. A brush plate is fixedly connected to one side of the stirring frame 612b. One side of the brush plate is in contact with the inner wall of the outer shell 601. A liquid feed pipe 7 is connected to the top of one side of the outer shell 601. A solenoid valve 8 is provided on the surface of the liquid feed pipe 7. A feed pipe 9 is connected to the top of the rear end of the outer shell 601. A foot 10 is fixedly connected to the bottom of the base 1. The foot 10s are symmetrically arranged. A fixing frame is fixedly connected to the top of the base 1. A touch operation screen 11 is fixedly connected to the top of the fixing frame. A connecting block 13 is fixedly connected to both the front and rear ends of the connecting plate 609. A sliding rod 14 is slidably connected to the inner cavity of the connecting block 13. Both ends of the sliding rod 14 are fixedly connected to the inner wall of the box 604.

[0031] Specifically: the combination of stirring shaft 612a, stirring frame 612b, and stirring rod 612c, driven by a third motor 611, can fully mix the food ingredients inside the outer shell 601, ensuring the uniformity of the mixture. The brush plate is set between the stirring frame 612b and the inner wall of the outer shell 601. The stirring frame 612b moves the brush plate during rotation, preventing food ingredients from remaining inside the outer shell 601 and facilitating cleaning. The liquid feed pipe 7 and solenoid valve 8 are used to add liquid ingredients, facilitating the delivery and proportioning of liquid ingredients. Solid ingredients are fed into the interior of the outer shell 601 through the feed pipe 9. The pads 10 support the base 1, ensuring the stability of the overall structure of the base 1. The touch screen 11 and the fixing frame are installed above the base 1 for convenient operation. The die head can shape the extruded food ingredients and cut them through the cutter 12, facilitating subsequent processing. The cooperation between the slide rod 14 and the connecting block 13 limits the connection plate 609, ensuring the stability of the connection plate 609 during movement.

[0032] The working principle of this utility model is as follows: Food ingredients are placed inside the outer casing 601. After starting the second motor 605, the second motor 605 drives the rotating rod 606 to rotate. The rotating rod 606 drives the cam 607 to rotate. During the rotation of the cam 607, one end contacts the connecting plate 609, enabling the connecting plate 609 to reciprocate. A spring 608 is provided at the bottom of the connecting plate 609, which functions to reset the connecting plate 609. The connecting plate 609 drives the fixed rod 610 to move, and the fixed rod 610 drives the third motor 611 to move. The third motor 611 drives the agitator 612 below to perform vertical reciprocating motion. After the third motor 611 is started, it can evenly and fully mix the food ingredients added inside the outer shell 601. By starting the third motor 611, the third motor 611 drives the agitator 612a to rotate, the agitator 612a drives the agitator frame 612b to rotate, the agitator frame 612b drives the agitator rod 612c to rotate, and the agitator rod 612c mixes the raw materials inside the outer shell 601. After the mixture is completed, the material enters the twin-screw extruder 5 for extrusion.

[0033] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to specific implementation methods. The present specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present utility model, so that those skilled in the art can better understand and utilize the present utility model.

Claims

1. A food processing twin-screw extruder comprising a base (1), characterised in that: The base (1) top side is fixedly connected with a first motor (2), and the output end of the first motor (2) is fixedly connected with a shaft coupling (3), one side of the shaft coupling (3) is fixedly connected with a reduction gear box (4), and the output end of the reduction gear box (4) is fixedly connected with a double screw body (5), and the top of the double screw body (5) is fixedly connected with a feeder assembly (6). The feeder assembly (6) comprises an outer shell (601), the bottom of the outer shell (601) is communicated with the top of the double screw body (5), the top of the outer shell (601) is fixedly connected with a cover (602), the top of the cover (602) is fixedly connected with a mounting bracket (603), the top of the mounting bracket (603) is fixedly connected with a box body (604), one side of the box body (604) is fixedly connected with a second motor (605), the output end of the second motor (605) is fixedly connected with a rotating rod (606), one side of the rotating rod (606) penetrates into the inner cavity of the box body (604), the surface of the rotating rod (606) is fixedly connected with a cam (607), the inner cavity of the box body (604) is fixedly connected with a spring (608) on both sides of the bottom, the top of the spring (608) is fixedly connected with a connecting plate (609), the top of the connecting plate (609) is in contact with the cam (607), the bottom of the connecting plate (609) is fixedly connected with a fixed rod (610), the bottom of the fixed rod (610) penetrates into the inner cavity of the box body (604) and is fixedly connected with a third motor (611), the output end of the third motor (611) is fixedly connected with a stirrer (612), and the bottom of the stirrer (612) penetrates into the inner cavity of the outer shell (601).

2. A food processing twin-screw extruder according to claim 1, characterized in that: The stirrer (612) comprises a stirring shaft (612a), the top of the stirring shaft (612a) is fixedly connected with the output end of the third motor (611), the bottom of the stirring shaft (612a) is fixedly connected with a stirring frame (612b), and the opposite side of the stirring frame (612b) is fixedly connected with a stirring rod (612c).

3. A food processing twin screw extruder according to claim 2, characterised in that: The stirring frame (612b) is fixedly connected with a brush plate on one side, and the brush plate is in contact with the inner wall of the outer shell (601) on one side.

4. A food processing twin screw extruder according to claim 1, characterized in that: The outer shell (601) is communicated with a liquid feeding pipe (7) on one side of the top, the surface of the liquid feeding pipe (7) is provided with a solenoid valve (8), and the rear end of the outer shell (601) is communicated with a feeding pipe (9) on the top.

5. A food processing twin screw extruder according to claim 1, characterized in that: The bottom of the base (1) is fixedly connected with a foot pad (10), and the foot pads (10) are symmetrically arranged.

6. A food processing twin screw extruder according to claim 1, characterized in that: The top of the base (1) is fixedly connected with a fixed frame, and the top of the fixed frame is fixedly connected with a touch operation screen (11).

7. A food processing twin screw extruder according to claim 1, characterized in that: One side of the double screw body (5) is communicated with a die, and one side of the die is provided with a cutting machine (12).

8. A food processing twin screw extruder according to claim 1, characterized in that: The front end and the rear end of the connecting plate (609) are fixedly connected with a connecting block (13), the inner cavity of the connecting block (13) is slidably connected with a sliding rod (14), and the two ends of the sliding rod (14) are fixedly connected with the inner wall of the box body (604).

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