A conical vertical screw mixing apparatus for a fruit-in-suspension drink

Abstract

The utility model relates to a kind of conical vertical spiral mixing equipment for fruit granule suspension beverage, comprising: mixing tank, it is conical structure, top is equipped with feed inlet, bottom is equipped with the discharge outlet with valve;Stirring shaft, coaxial setting in the mixing tank;Spiral blade, spiral distribution is on the stirring shaft, its pitch changes along the axial, and upper pitch is greater than lower pitch;Driving device, it is set in the mixing tank top and is connected with the stirring shaft, for driving the stirring shaft rotation.Mixing tank adopts the conical design of upper wide lower narrow, cooperate bottom discharge outlet, can natural guide material downward gathering, avoid fruit granule deposition in bottom, simultaneously facilitate emptying and cleaning;Spiral blade is distributed along stirring shaft, and upper pitch is greater than lower pitch, can produce intense axial and radial eddy current in rotation process, make fruit granule and liquid contact, suspension, effectively prevent stratification and agglomerate.

Description

Technical Field

[0001] This utility model relates to the field of food processing equipment technology, and in particular to a conical vertical spiral mixing device for fruit particle suspension beverages. Background Technology

[0002] Fruit-based suspension beverages, such as juice drinks and fruit-flavored yogurt, require the uniform mixing of solid fruit particles and pulp with the liquid base during production, maintaining the fruit particles in a stable suspension within the beverage to prevent sedimentation or stratification. However, existing mixing equipment often suffers from the following problems: First, fruit particles tend to settle at the bottom of the mixing tank, leading to uneven mixing; second, large fruit pulp particles easily clump together, affecting filling smoothness and product consistency; and third, conventional stirring devices struggle to achieve sufficient axial and radial mixing simultaneously, especially for denser fruit particles.

[0003] In the prior art, such as the Chinese utility model patent with publication number CN221432844U, a mixing device for fruit beverage is disclosed. By setting a collection plate, a cutting mesh plate and bottom stirring blades, the dispersion and collection of fruit particles are improved. However, it still has problems such as complex structure, large shear force, easy crushing of delicate fruit particles, affecting taste and appearance, easy formation of eddies or dead zones, uneven particle distribution and fast settling speed.

[0004] Therefore, it is necessary to design a specialized mixing device with a reasonable structure, low fruit particle damage rate, and suitable for fruit particle suspension beverages. Utility Model Content

[0005] The purpose of this invention is to provide a conical vertical spiral mixing device for fruit particle suspension beverages, in order to solve the problems mentioned in the background art.

[0006] The above-mentioned objective of this utility model is achieved through the following technical solution: a conical vertical spiral mixing device for fruit particle suspension beverages, comprising: The mixing tank has a conical structure with a feed inlet at the top and a discharge outlet with a valve at the bottom. A stirring shaft is coaxially disposed inside the mixing tank; The spiral blades are spirally distributed on the stirring shaft, and their pitch varies along the axial direction, with the upper pitch being greater than the lower pitch. A drive unit is located at the top of the mixing tank and connected to the stirring shaft, for driving the stirring shaft to rotate.

[0007] Preferably, the inner diameter of the mixing tank decreases from top to bottom, and its cone angle is 30-60°.

[0008] Preferably, the diameter of the spiral blade decreases from the upper end to the lower end and is adapted to the cone angle of the mixing tank.

[0009] Preferably, the gap between the outer edge of the spiral blade and the inner wall of the mixing tank is 5-30 mm.

[0010] Preferably, the outer edge of the helical blade is a circular arc outer edge that convexes in the outward direction.

[0011] Preferably, the drive device includes a mounting base fixed to the top of the mixing tank, a gearbox disposed on the mounting base, and a stirring motor mounted on the gearbox, with the upper end of the stirring shaft connected to the gearbox.

[0012] Preferably, the upper end of the mounting base is provided with an adjusting seat, the gearbox is fixed on the adjusting seat, the lower end of the adjusting seat is provided with a guide cylinder, the guide cylinder is inserted into the insertion hole of the mounting base, and an adjusting component is provided between the mounting base and the adjusting seat.

[0013] Preferably, the adjusting assembly includes a hydraulic cylinder connected between the mounting base and the adjusting base.

[0014] The beneficial effects of this utility model are: 1. The mixing tank adopts a conical design that is wider at the top and narrower at the bottom, which, together with the bottom discharge port, can naturally guide the material to gather downwards, preventing fruit particles from settling at the bottom, and at the same time facilitates emptying and cleaning; 2. The spiral blades are distributed along the stirring shaft, and the upper pitch is greater than the lower pitch. This generates strong axial and radial vortices during rotation, allowing the fruit particles to fully contact and suspend in the liquid, effectively preventing stratification and clumping. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the mixing device in an embodiment of this utility model; Figure 2 This is a cross-sectional view of the helical blade in an embodiment of this utility model; Figure 3 This is a schematic diagram of the installation of the adjustment component in an embodiment of this utility model; In the diagram: 1-mixing tank, 101-feed inlet, 102-discharge outlet, 2-stirring shaft, 3-spiral blade, 301-circular outer edge, 4-gearbox, 5-stirring motor, 6-mounting base, 601-insertion hole, 7-adjusting base, 8-guide cylinder, 9-hydraulic cylinder. Detailed Implementation

[0016] The present invention will be further described in detail below with reference to the accompanying drawings.

[0017] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of the present utility model.

[0018] Example 1: like Figure 1 As shown, a conical vertical spiral mixing device for fruit particle suspension beverages includes: a mixing tank 1, a stirring shaft 2, spiral blades 3, and a driving device. The mixing tank 1 has a conical structure, and the inner diameter of the mixing tank 1 decreases from the top to the bottom. Its cone angle α is 30-60°. Preferably, in this embodiment, the cone angle α is 45°.

[0019] The mixing tank 1 has a feed inlet 101 at the top and a discharge outlet 102 with a valve at the bottom.

[0020] The stirring shaft 2 is vertically set and coaxially set inside the mixing tank 1.

[0021] The spiral blades 3 are spirally distributed on the stirring shaft 2, and their pitch varies along the axial direction. The upper pitch is greater than the lower pitch, that is, the upper pitch D1 is greater than the lower pitch D2.

[0022] The diameter of the spiral blade 3 (i.e., the distance from the outer edge of the spiral blade 3 to the axis) decreases from the upper end to the lower end and is adapted to the cone angle of the mixing tank 1.

[0023] Furthermore, the gap between the outer edge of the spiral blade 3 and the inner wall of the mixing tank 1 is 5-30 mm, which is adjusted according to the different varieties of fruit.

[0024] like Figure 2 As shown, the outer edge of the spiral blade 3 is a circular arc outer edge 301 that convexes in the outward direction, which reduces fruit damage.

[0025] The drive unit is located on the top of the mixing tank 1 and connected to the stirring shaft 2, and is used to drive the stirring shaft 2 to rotate. The drive unit includes a mounting base 6 fixed on the top of the mixing tank 1, a gearbox 4 mounted on the mounting base 6, and a stirring motor 5 mounted on the gearbox 4. The upper end of the stirring shaft 2 is connected to the gearbox 4.

[0026] The material (liquid base + fruit granules / particles) is added into the conical mixing tank 1 through the top feed inlet; the drive device is started, and the stirring shaft 2 drives the variable pitch spiral blades 3 to rotate; the lower small pitch blades generate a strong upward thrust, lifting the settled fruit granules upward; the upper large pitch blades and the conical tank wall guide the material to flow back downward; an axial main circulation flow of "rising in the center and falling around the periphery" is formed in the tank, so as to achieve uniform suspension of the fruit granules.

[0027] Example: like Figure 3 As shown, the difference from Embodiment 1 is that an adjusting seat 7 is provided at the upper end of the mounting base 6, the gearbox 4 is fixed on the adjusting seat 7, a guide cylinder 8 is provided at the lower end of the adjusting seat 7, the guide cylinder 8 is inserted into the insertion hole 601 of the mounting base 6, and an adjusting assembly is provided between the mounting base 6 and the adjusting seat 7. The adjusting assembly includes a hydraulic cylinder 9, which is connected between the mounting base 6 and the adjusting seat 7.

[0028] The guide cylinder 8 is fixedly connected to the adjusting seat 7, and the guide cylinder 8 is connected to the insertion hole 601 by a spline, which can both allow the adjusting seat 7 to move up and down relative to the mounting seat 6 and prevent the adjusting seat 7 from rotating.

[0029] The upper end of the stirring shaft 2 is mounted on the adjusting seat 7 via a bearing and moves axially along with the adjusting seat 7. When the hydraulic cylinder 9 drives the adjusting seat 7 to move up and down, the stirring shaft 2 moves along with the adjusting seat 7, causing the spiral blades 3 to move together, thereby adjusting the gap between the outer edge of the spiral blades 3 and the inner wall of the mixing tank 1.

Claims

1. A conical vertical spiral mixing device for fruit particle suspension beverages, characterized in that, include: The mixing tank (1) has a conical structure with a feed inlet (101) at the top and a discharge outlet (102) with a valve at the bottom. A stirring shaft (2) is coaxially disposed inside the mixing tank (1); The spiral blades (3) are spirally distributed on the stirring shaft (2), and their pitch varies along the axial direction, with the upper pitch being greater than the lower pitch. A drive unit is located on the top of the mixing tank (1) and connected to the stirring shaft (2) for driving the stirring shaft (2) to rotate.

2. The conical vertical spiral mixing device for fruit particle suspension beverages according to claim 1, characterized in that: The inner diameter of the mixing tank (1) decreases from the top to the bottom, and its cone angle is 30-60°.

3. A conical vertical spiral mixing device for fruit particle suspension beverages according to claim 2, characterized in that: The diameter of the spiral blade (3) decreases from the upper end to the lower end and is adapted to the cone angle of the mixing tank (1).

4. A conical vertical spiral mixing device for fruit particle suspension beverages according to claim 1 or 3, characterized in that: The gap between the outer edge of the spiral blade (3) and the inner wall of the mixing tank (1) is 5-30 mm.

5. A conical vertical spiral mixing device for fruit particle suspension beverages according to claim 1, characterized in that: The outer edge of the spiral blade (3) is a circular arc outer edge (301) that protrudes in the direction of the outer side.

6. A conical vertical spiral mixing device for fruit particle suspension beverages according to claim 1, characterized in that: The drive unit includes a mounting base (6) fixed on the top of the mixing tank (1), a gearbox (4) mounted on the mounting base (6), and a stirring motor (5) mounted on the gearbox (4). The upper end of the stirring shaft (2) is connected to the gearbox (4).

7. A conical vertical spiral mixing device for fruit particle suspension beverages according to claim 6, characterized in that: An adjustment seat (7) is provided at the upper end of the mounting base (6), the gearbox (4) is fixed on the adjustment seat (7), a guide cylinder (8) is provided at the lower end of the adjustment seat (7), the guide cylinder (8) is inserted into the insertion hole (601) of the mounting base (6), and an adjustment component is provided between the mounting base (6) and the adjustment seat (7).

8. A conical vertical spiral mixing device for fruit particle suspension beverages according to claim 7, characterized in that: The adjustment assembly includes a hydraulic cylinder (9) connected between the mounting base (6) and the adjustment base (7).

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