Sample pulverizing device for food nutrition detection

Abstract

The utility model discloses a kind of sample crushing devices for food nutrition detection, it is related to broken cutter, including driving motor, further including with the comminuting knife group of driving motor output end transmission connection, it is divided into upper module broken cutter and lower module broken cutter according to structure, and the adjacent surface of two blades is fixedly provided with the convex part of distribution in same horizontal plane, and every convex part on the upper module broken cutter is distributed between every adjacent two convex parts on the lower module broken cutter.The utility model upper module broken cutter every convex part is accurately inserted into the clearance of adjacent two convex parts of lower module broken cutter, forms staggered engagement layout, and when double-knife independent operation, material is sheared and broken twice by convex part through cutter clearance, to optimize crushing effect.

Description

Technical Field

[0001] This utility model relates to crushing tools, specifically a sample crushing device for food nutrition testing. Background Technology

[0002] Before nutritional analysis of food, food samples need to be pulverized. The purpose of pulverization is not merely to "break up the food," but also to precisely control particle size, temperature, and homogeneity to address physical heterogeneity and component encapsulation effects, providing a reliable matrix for subsequent testing. Skipping this step will lead to data distortion, poor repeatability, and even incorrect nutritional assessments (such as underestimating the dietary fiber content of whole grains). Therefore, pulverization is a cornerstone operation for accurate nutritional testing.

[0003] According to Chinese patent publication number CN103586115A, published on February 19, 2014, an integrated mixing and pulverizing device is disclosed.

[0004] In existing technologies, including the aforementioned patents, the crushing effect depends on the centrifugal speed and the design of the cutting tools. Of course, the speed is not unlimited and needs to be controlled within a reasonable range. Therefore, the determining factor for the crushing effect currently lies in the design of the cutting tools. Designs such as multi-blade and double-blade designs with opposite directions improve the number of cutting tools or their direction of rotation to achieve a better crushing effect. Very few improvements are made to the structure of the cutting tools themselves to achieve a better crushing effect. Utility Model Content

[0005] The purpose of this invention is to provide a sample crushing device for food nutrition testing, so as to solve the above-mentioned shortcomings in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a sample crushing device for food nutrition testing, including a drive motor and a crushing blade assembly that is connected to the output end of the drive motor. The device is divided into an upper module crushing blade and a lower module crushing blade according to its structure. Both blades have protrusions fixedly arranged on adjacent surfaces on the same horizontal plane. Each protrusion on the upper module crushing blade is distributed between every two adjacent protrusions on the lower module crushing blade.

[0007] Preferably, the device also includes a crushing barrel, with a base centrally located at the bottom of the crushing barrel, and the lower module crushing blades are rotatably mounted on the outer wall of the base.

[0008] The upper module crushing cutter includes a rotating shaft, which is fixedly connected to the output end of the drive motor.

[0009] Preferably, a second circular gear is rotatably disposed within the base, a first circular gear is fixedly disposed at the end of the rotating shaft, the lower module crushing cutter includes a track gear, and the second circular gear meshes with the first circular gear and the track gear respectively.

[0010] Preferably, the rotational speed of the lower module crusher is twice or more than that of the upper module crusher.

[0011] Preferably, the machine also includes a frame on which an outer compartment for fixing the crushing barrel is fixedly installed. The crushing barrel is a transparent component, and the outer compartment has a window.

[0012] Preferably, the hatch of the outer compartment is located at the bottom, the crushing barrel is inserted through the hatch, and a rotating rod is provided at its bottom to prevent dismantling and locking.

[0013] Preferably, a rubber pad is fixedly installed on the side of the rotating rod that contacts the crushing barrel.

[0014] Preferably, the hatch is fixedly installed with a thick lip ring whose outer wall is covered with a rubber sheath, and the thick lip ring is provided with a positioning groove;

[0015] The bottom of the crushing barrel is fixedly installed with an overhang, and a positioning block that is inserted into the positioning slot is fixedly installed on the overhang.

[0016] Preferably, the port of the crushing barrel is fixedly provided with a ring, the ring having several positioning holes, and the top of the outer compartment is threaded with multiple bolt positioning parts that are inserted into the positioning holes.

[0017] Preferably, the inner radius of the ring is smaller than the radius of the port of the crushing barrel.

[0018] In the above technical solution, the sample crushing device for food nutrition testing provided by this utility model has the following beneficial effects: The double-blade design, consisting of an upper module crushing blade and a lower module crushing blade, allows material particles to enter the gap between the two blades through independent operation. During the material's passage through the gap, the horizontally distributed protrusions on adjacent surfaces of the blades mesh with each other; that is, each protrusion of the upper module crushing blade is precisely located between two adjacent protrusions of the lower module crushing blade, achieving efficient secondary shearing and crushing of the particles. This design fully utilizes the blade structure itself, achieving conventional crushing functions while effectively improving the particle crushing effect through the meshing action of the protrusions in the gap between the two blades. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0020] Figure 1 This is a schematic diagram of the implementation structure provided for an embodiment of the present utility model;

[0021] Figure 2 A schematic diagram of the bottom structure of the outer cabin provided for an embodiment of this utility model;

[0022] Figure 3 Provided for the embodiments of this utility model Figure 2 A schematic diagram of the exploded structure;

[0023] Figure 4 This is a schematic diagram of the structure of the lower module crushing tool provided in an embodiment of the present utility model;

[0024] Figure 5 This is a schematic diagram of the structure of the upper module crushing tool provided in an embodiment of the present utility model;

[0025] Figure 6 This is a schematic diagram of a partial cross-section provided for an embodiment of the present invention.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. Drive motor; 2. Crushing blade assembly; 21. Upper module crushing blade; 211. Rotating shaft; 22. Lower module crushing blade; 23. Protrusion; 3. Crushing barrel; 31. Base; 32. Positioning block; 33. Ring; 331. Positioning hole; 35. Eaves protrusion; 4. Frame; 41. Outer compartment; 411. Window; 42. Rotating rod; 43. Thick lip ring; 431. Positioning groove; 44. Bolt positioning component; 50. Second circular gear; 51. First circular gear; 52. Track gear. Detailed Implementation

[0028] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0029] Please see Figure 1-6 This utility model provides a technical solution: a sample pulverizing device for food nutrition testing, comprising...

[0030] Example 1

[0031] The drive motor 1, the frame 4, and the outer compartment 41 are all bolted to the frame 4. The frame 4 is then fixed to the wall or the experimental table using expansion bolts. Figure 1 The components are arranged as shown, with the outer chamber 41 maintained at a height of 160cm-170cm above the ground to facilitate subsequent operation by personnel. The shredder assembly 2 is located within the outer chamber 41 and fixed to the output end of the drive motor 1 via a coupling. During operation, operation can be started or stopped via an external remote control panel, and it is directly powered by a 220V AC power supply through a socket. The drive motor 1 can be a stepper motor or a three-phase asynchronous motor.

[0032] Example 2

[0033] In the above embodiment, the crushing blade assembly 2 is divided into an upper module crushing blade 21 and a lower module crushing blade 22 according to its structure. Both blades have protrusions 23 fixedly arranged on adjacent surfaces on the same horizontal plane. Each protrusion 23 on the upper module crushing blade 21 is distributed between each two adjacent protrusions 23 on the lower module crushing blade 22.

[0034] Specifically, the upper module crusher 21 and the lower module crusher 22 can be driven to rotate in the same direction or in opposite directions. This dual-blade design, consisting of the upper and lower module crushers 21 and 22, allows material particles to enter the gap between the two blades through independent operation. During the material's passage through the gap, the horizontally distributed protrusions 23 on adjacent blade surfaces mesh with each other. Each protrusion 23 of the upper module crusher 21 is precisely positioned between two adjacent protrusions 23 of the lower module crusher 22, resulting in efficient secondary shearing and crushing of the particles. This design fully utilizes the blade structure itself, achieving conventional crushing functions while effectively improving particle crushing efficiency through the meshing of the protrusions in the gap between the two blades.

[0035] Example 3

[0036] Based on Embodiment 2 above, this embodiment also provides a crushing barrel 3, which is installed inside the outer compartment 41 and is the main crushing site. Furthermore, in conjunction with... Figure 6 As shown, a base 31 is centrally located at the bottom of the crushing barrel 3, and the lower module crushing cutter 22 is rotatably mounted on the outer wall of the base 31. The upper module crushing cutter 21 includes a rotating shaft 211, which is fixedly connected to the output end of the drive motor 1. The rotating shaft 211 is connected to the output end of the drive motor 1 via a coupling.

[0037] Furthermore, in combination Figure 4 and Figure 5As shown, a second circular gear 50 is rotatably disposed inside the base 31, and a first circular gear 51 is fixedly disposed at the end of the rotating shaft 211. The lower module crushing cutter 22 includes a track gear 52, and the second circular gear 50 meshes with the first circular gear 51 and the track gear 52 respectively.

[0038] Specifically, under the transmission formed by the second circular gear 50, the first circular gear 51, and the track gear 52, the rotational speed of the lower module crusher 22 is twice or more than that of the upper module crusher 21 due to the gear transmission ratio. That is, there is a speed difference between the lower module crusher 22 and the upper module crusher 21. The protrusion of the upper tool rotates at a speed V1, while the protrusion of the lower tool rotates at a speed V2 ≥ 2V1. The two generate high-speed relative motion in the meshing gap. After the material particles are entrained, they are subjected to bidirectional opposing forces (slow compression from the upper tool + high-speed pulling from the lower tool), generating strong shear stress and achieving a tearing effect similar to "scissor closure." The speed difference creates an asymmetric flow field, preventing the particles from moving synchronously with a single tool. They are forced to repeatedly tumble in the tool gap until they are captured and crushed by the protrusion.

[0039] Furthermore, the aforementioned base 31 is fixedly installed on the inner bottom of the crushing barrel 3 and is centrally located. Combined with... Figure 6 It can also be known.

[0040] Example 4

[0041] Based on the above embodiment three, in this embodiment, a window 411 is provided on the outer cabin 41, and the crushing barrel 3 is a transparent component, which can be tempered glass or a high-hardness transparent polyethylene plastic component. Furthermore, in conjunction with... Figure 2 As shown, the hatch of the outer compartment 41 is located at the bottom, and the crushing barrel 3 is inserted through the hatch. A rotating rod 42 is installed at the bottom of the barrel to prevent disassembly and locking. A rubber gasket is fixedly installed on the side of the rotating rod 42 that contacts the crushing barrel 3. Therefore, by rotating, the bottom of the crushing barrel 3 can be firmly secured, thus achieving a lock. To ensure the locking effect, a bolt can be added to the end of the rotating rod 42. By rotating the bolt, the end of the bolt abuts against the bottom of the crushing barrel 3 for positioning.

[0042] Example 5

[0043] Based on the above embodiment four, a thick lip ring 43 with an outer wall covered by a rubber sheath is fixedly installed at the hatch, and a positioning groove 431 is opened on the thick lip ring 43. An eaves protrusion 35 is fixedly installed at the bottom of the crushing barrel 3, and a positioning block 32 that is inserted into the positioning groove 431 is fixedly provided on the eaves protrusion 35.

[0044] Secondly, a ring 33 is fixedly installed at the port of the crushing barrel 3, and several positioning holes 331 are opened on the ring 33. Multiple bolt positioning parts 44 that are inserted into the positioning holes 331 are threaded on the top of the outer compartment 41.

[0045] It should be noted that the inner radius of ring 33 is smaller than the radius of the port of crushing barrel 3.

[0046] Specifically, the eaves protrusion 35 at the bottom of the crushing barrel 3 is embedded in the positioning groove 431 of the thick lip ring 43 of the hatch, forming a radial constraint. The side wall of the eaves protrusion 35 fits tightly against the inner wall of the positioning groove 431, eliminating the horizontal displacement error of the barrel (≤0.5mm) and ensuring that the barrel is concentric with the drive shaft. The positioning hole 331 of the crushing barrel port ring 33 is aligned with the bolt positioning piece 44 on the top of the hatch, and the vertical downward pressure is generated by tightening the thread. The inner radius of the ring 33 is less than the radius of the crushing barrel port, so that when the bolt is pressed down, the inner edge of the ring generates a radial contraction force, pressing the barrel wall tightly against the rubber outer sheath of the thick lip ring 43, forming a two-way locking. Under the action of the clamping force of the ring 33, the rubber outer sheath of the thick lip ring 43 undergoes elastic deformation to fill the microscopic gap between the barrel wall and the hatch. When the equipment vibrates, the rubber continuously provides rebound force to compensate for displacement, avoiding seal failure caused by metal fatigue.

[0047] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A sample pulverizing device for food nutrition testing, comprising a drive motor (1), characterized in that, It also includes a crushing blade assembly (2) that is connected to the output end of the drive motor (1). According to its structure, it is divided into an upper module crushing blade (21) and a lower module crushing blade (22). Both blades have protrusions (23) fixedly arranged on adjacent surfaces, which are distributed on the same horizontal plane. Each protrusion (23) on the upper module crushing blade (21) is distributed between each two adjacent protrusions (23) on the lower module crushing blade (22).

2. The sample pulverizing device for food nutrition testing according to claim 1, characterized in that, It also includes a crushing barrel (3), with a base (31) centrally located at the bottom of the crushing barrel (3), and the lower module crushing cutter (22) is rotatably mounted on the outer wall of the base (31); The upper module crushing cutter (21) includes a rotating shaft (211), which is fixedly connected to the output end of the drive motor (1).

3. The sample pulverizing device for food nutrition testing according to claim 2, characterized in that, The base (31) is rotatably provided with a second circular gear (50), the end of the rotating shaft (211) is fixedly provided with a first circular gear (51), the lower module crushing cutter (22) includes a track gear (52), and the second circular gear (50) meshes with the first circular gear (51) and the track gear (52) respectively.

4. The sample pulverizing device for food nutrition testing according to claim 3, characterized in that, The rotational speed of the lower module crusher (22) is twice or more the rotational speed of the upper module crusher (21).

5. The sample pulverizing device for food nutrition testing according to claim 3, characterized in that, It also includes a frame (4), on which an outer compartment (41) for fixing the crushing barrel (3) is fixedly installed. The crushing barrel (3) is a transparent part, and a window (411) is opened on the outer compartment (41).

6. The sample pulverizing device for food nutrition testing according to claim 5, characterized in that, The hatch of the outer compartment (41) is located at the bottom. The crushing barrel (3) is inserted through the hatch and is blocked and locked by a rotating rod (42) at its bottom.

7. The sample pulverizing device for food nutrition testing according to claim 6, characterized in that, A rubber pad is fixedly installed on the side of the rotating rod (42) that contacts the crushing barrel (3).

8. The sample pulverizing device for food nutrition testing according to claim 6, characterized in that, The hatch is fixedly installed with a thick lip ring (43) whose outer wall is covered with a rubber outer sheath, and the thick lip ring (43) is provided with a positioning groove (431). The bottom of the crushing barrel (3) is fixedly installed with an eave (35), and a positioning block (32) is fixedly installed on the eave (35) and inserted into the positioning slot (431).

9. A sample pulverizing device for food nutrition testing according to claim 8, characterized in that, The crushing barrel (3) has a fixed ring (33) at its port, and the ring (33) has several positioning holes (331). The top of the outer cabin (41) is threaded with multiple bolt positioning parts (44) that are inserted into the positioning holes (331).

10. A sample pulverizing device for food nutrition testing according to claim 9, characterized in that, The inner radius of the ring (33) is smaller than the radius of the port of the crushing barrel (3).

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