A kind of pre-treatment grinder for fresh egg and egg product detection

Abstract

The utility model discloses a kind of pre-treatment grinder for fresh egg and egg product detection in the technical field of ball mill device, including grinder main body, grinder main body side edge bottom is equipped with mounting seat, mounting seat upper side is equipped with support frame, support frame upper portion is equipped with ball mill jar, driving mechanism for driving ball mill jar rotation is equipped below support frame, driving mechanism includes the driving motor being set in the bottom of mounting seat, the output shaft end of driving motor is connected to the rotation of sun gear axle, sun gear is equipped with planetary gear around meshing, planetary gear is equipped with planet carrier, planet carrier outside is equipped with the gear ring meshing with planetary gear, gear ring is fixedly arranged on the support frame of mounting seat. The grinder of the device has good grinding effect on fresh egg and egg product, the metal substance is not separated out in grinding jar body, will not produce damage to protein in grinding, has no influence to subsequent analysis and detection.

Description

Technical Field

[0001] This utility model relates to the technical field of ball mill equipment, and in particular to a pretreatment grinding instrument for testing fresh eggs and egg products. Background Technology

[0002] In the analysis and testing of food and pharmaceuticals, a pretreatment process involving grinding is often required to bring the samples to a suitable level for detection. For the analysis and testing of fresh eggs or egg products (such as whole egg powder, egg yolk powder, egg white powder, and egg liquid products), in order to obtain accurate and reliable analytical results, including those concerning nutrients, contaminants, additives, and microorganisms, fine pretreatment of solid or semi-solid samples is typically necessary. Grinding is a crucial step in this process, aiming to uniformly and thoroughly break down the sample, reduce particle size, and increase specific surface area. This makes it easier to extract, dissolve, or directly expose the analytes, meeting the uniformity and fineness requirements of subsequent analytical instruments (such as chromatography, spectroscopy, mass spectrometry, and enzyme-linked immunosorbent assay).

[0003] Currently, ball mill jars with grinding balls are widely used in laboratories for sample crushing. The working principle is to use the strong impact, friction and shear force generated by the grinding balls inside the jar when it vibrates or rotates at high speed to crush the sample. It has the advantages of high efficiency, relatively simple operation and the ability to process a variety of sample types.

[0004] However, fresh eggs and egg products are rich in heat-sensitive and mechanosensitive proteins, such as ovalbumin, ovotransferrin, and lysozyme. The structure and biological activity of these proteins are extremely sensitive to factors such as increased temperature, intense mechanical force, and the release of metal ions. Existing conventional ball mill jars have some drawbacks when grinding egg products: First, during high-speed, long-term grinding, the intense friction and collision between grinding balls, between grinding balls and the jar wall, and between sample particles generate significant local high temperatures, which can easily lead to denaturation, aggregation, or degradation of proteins in fresh eggs and egg products. Second, grinding jars are generally made of stainless steel or other metal materials, which may release trace amounts of metal ions, such as iron, chromium, and nickel, during the grinding process, interfering with subsequent trace element detection and analysis. Prolonged use may also cause the surface coating to peel off, leading to metal precipitation that binds to proteins in egg products, affecting the analytical results. Utility Model Content

[0005] The purpose of this invention is to overcome the defects in the prior art and provide a pretreatment grinder for the detection of fresh eggs and egg products. It has a good grinding effect on fresh eggs and egg products, no metal substances are released from the grinding tank, and the protein is not damaged during grinding, so as not to affect subsequent analysis and detection.

[0006] The purpose of this utility model is achieved as follows: A pretreatment grinding instrument for testing fresh eggs and egg products includes a grinding instrument body, a mounting base at the bottom side of the grinding instrument body, a support frame above the mounting base, a grinding jar on the upper part of the support frame, and a drive mechanism for driving the grinding jar to rotate below the support frame. The drive mechanism includes a drive motor located at the bottom of the mounting base, the output shaft of the drive motor being connected to the rotating shaft of a sun gear, planetary gears meshing around the sun gear, planetary carriers located above and below the planetary gears, and a gear ring meshing with the planetary gears on the outside of the planetary carriers. The gear ring is fixedly mounted on the support frame of the mounting base.

[0007] In operation, the drive mechanism rotates the sun gear, which meshes with the planetary gears. The grinding jars on the planetary gears rotate in the opposite direction to the sun gear. During one rotation of the sun gear, the grinding jars rotate twice in the opposite direction, rapidly accelerating the grinding balls within the jars and generating the high grinding energy required to produce extremely fine particles. This allows for rapid, uniform, and thorough grinding of fresh eggs and egg products within the grinding jars, making it easier to extract, dissolve, or directly expose the analytes, meeting the requirements of subsequent testing instruments for sample uniformity and fineness. Compared to existing technologies, this device features a double-layered grinding jar. After grinding, the inner jar can be directly removed for easy sample extraction. The inner jar is made of MC nylon, which has a smooth, flat surface, is lightweight, high-strength, and has excellent toughness. It will not leach metallic substances even after prolonged use and will not damage the protein properties of fresh eggs and egg products, thus having no impact on subsequent analysis and testing. Furthermore, the ball milling device has a simple structure, and the relevant parameters are set via the control panel, making it easy to operate and use.

[0008] Furthermore, the ball mill jar includes an outer cylinder and an inner cylinder installed inside the outer cylinder. A cylinder cover is provided on the top of the outer cylinder by a threaded connection. After the cylinder cover is screwed into place, the bottom surface of the cylinder cover abuts against the upper surface of the inner cylinder.

[0009] Furthermore, the inner cylinder is made of MC nylon material, and multiple grinding balls are placed inside the inner cylinder. The grinding balls are small balls with magnetic properties.

[0010] Furthermore, there are four planetary gears, which are respectively installed at the four corners of the square planetary carrier, and a transmission rod is provided in the middle of the planetary gears, which passes through the base and connects to the bottom of the outer cylinder.

[0011] Furthermore, the grinding instrument body is also equipped with an operation panel, with operation buttons below the operation panel, and heat dissipation holes on both sides of the grinding instrument body.

[0012] Furthermore, a top cover is connected to the mounting base via a hinge, and a handle is installed on the front side of the top cover to facilitate lifting and opening the top cover. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of the grinding instrument of this utility model.

[0014] Figure 2 This is a schematic diagram of the external structure of the ball mill jar in the grinding instrument of this utility model.

[0015] Figure 3 This is a schematic diagram of the internal structure of the ball mill jar in the grinding instrument of this utility model.

[0016] Figure 4 This is a schematic diagram of the drive device for the ball mill jar in the grinding instrument of this utility model.

[0017] In the image above, 1 is the main body of the grinder, 2 is the control panel, 3 is the operation button, 4 is the hinge, 5 is the top cover, 6 is the handle, 7 is the mounting base, 8 is the support body, 9 is the outer cylinder, 10 is the base, 11 is the cylinder cover, 12 is the inner cylinder, 13 is the planetary gear, 14 is the sun gear, 15 is the gear ring, 16 is the drive motor, and 17 is the planetary carrier. Detailed Implementation

[0018] like Figures 1-4 The pretreatment grinding instrument for testing fresh eggs and egg products shown includes a grinding instrument body 1, a mounting base 7 at the bottom side of the grinding instrument body 1, a support frame 8 above the mounting base 7, a ball mill jar on the upper part of the support frame 8, and a drive mechanism for driving the ball mill jar to rotate below the support frame 8. The drive mechanism includes a drive motor 16 located at the bottom of the mounting base 7, and the output shaft of the drive motor 16 is connected to the rotating shaft of the sun gear 14. To improve the stability of the rotating shaft, the bottom of the rotating shaft is mounted on the support frame 8 of the mounting base 7 through two upper and lower bearings, and the upper part of the rotating shaft is connected to the base 10 through a bearing, ensuring that the rotating shaft stably drives the sun gear 14 and the base 10 to rotate under the drive of the drive motor. Planetary gears 13 are meshed around the sun gear 14, and planet carriers 17 are provided above and below the planetary gears 13. A gear ring 15 that meshes with the planetary gears 13 is provided on the outside of the planet carrier 17, and the gear ring 15 is fixedly mounted on the support frame 8 of the mounting base 7.

[0019] The grinding jar includes an outer cylinder 9 and an inner cylinder 12 installed inside the outer cylinder 9. A cylinder cover 11 connected by threads is provided on the top of the outer cylinder 9. After the cylinder cover 11 is screwed into place, the bottom surface of the cylinder cover 11 abuts against the upper surface of the inner cylinder 12. In order to improve the stability of the inner cylinder 12, four rigid silicone strips are provided on the inner wall of the outer cylinder 9. The two opposite strips are symmetrical. The upper surface of the strips is located at 1 / 3 of the height of the inner cylinder 12, and the strips are adapted to the shape of the inner cylinder 12 to better fit the surface of the inner cylinder 12.

[0020] The inner cylinder 12 is made of MC nylon material. Multiple grinding balls are placed inside the inner cylinder 12. The grinding balls are small magnetic balls. After grinding is completed, the grinding balls can be removed by magnetic attraction, making it convenient to take out the ground sample.

[0021] There are four planetary gears 13, which are installed at the four corners of the square planetary carrier 17. The planetary gear 13 has a transmission rod that passes through the base 10 and connects to the bottom of the outer cylinder 9. The connection between the transmission rod and the base 10 is equipped with a bearing.

[0022] The main body 1 of the grinder is also equipped with an operation panel 2, and an operation button 3 is located below the operation panel 2. Heat dissipation holes are also provided on both sides of the main body 1 of the grinder. The heat dissipation holes facilitate the timely dissipation of the heat generated by the grinder during operation, thereby reducing the temperature and the impact of temperature on the sample.

[0023] The mounting base 7 is connected to the top cover 5 via a hinge 4. A handle 6 is installed on the front of the top cover 5 to facilitate lifting and opening the top cover 5.

[0024] When this invention is in operation, the output shaft of the drive motor at the bottom of the mounting base 7 is connected to the rotating shaft of the sun gear 14, driving the sun gear 14 to rotate, which in turn drives the planetary gears 13 meshing with the sun gear to rotate. During the rotation, the planetary gears 13 revolve around the sun gear 14 while rotating on their own axis in the opposite direction to the sun gear 14, causing the grinding jar above the planetary gears 13 to rotate in the opposite direction to the rotation of the sun gear 14. During one rotation of the sun gear 14, the grinding jar rotates twice in the opposite direction, allowing the grinding balls in the grinding jar to accelerate rapidly, generating the high grinding energy required to grind extremely fine particles. This rapidly and evenly grinds the fresh eggs and egg products in the grinding jar, making it easier to extract, dissolve, or directly expose the components to be tested, thus meeting the requirements of subsequent testing instruments for sample uniformity and fineness. The main body 1 of the grinder is equipped with an operation panel 2, below which are operation buttons 3. The operation panel 2 is a capacitive touchscreen, which can be operated by touch with a finger or stylus. Inside the main body 1, there is an integrated circuit board electrically connected to the operation panel 2. The operating code of the ball mill jar is pre-programmed through a programmable logic device. In actual operation, grinding parameters such as rotation speed and time are adjusted directly on the operation panel 2 to start the ball mill. Operation button 3 is an emergency stop button. In case of emergency during operation, pressing operation button 3 will immediately stop the grinding, improving the convenience of operation. The ball mill jar of this device has a double-layered inner and outer cylinder. After grinding, the inner cylinder can be directly removed for easy sample extraction. The inner cylinder of the ball mill jar is made of MC nylon, which has a smooth and flat surface, is lightweight, high in strength and has good toughness. It will not leach metal substances under long-term use and will not damage the protein properties of fresh eggs and egg products, and will not affect subsequent analysis and testing.

[0025] This utility model is not limited to the above embodiments. Based on the technical solutions disclosed in this utility model, those skilled in the art can make some substitutions and modifications to some of the technical features without creative labor, and these substitutions and modifications are all within the protection scope of this utility model.

Claims

1. A pretreatment grinder for detecting fresh eggs and egg products, comprising a grinder body, characterized in that: The grinding machine body has a mounting base on its bottom side, a support frame on top of the mounting base, a grinding jar on the upper part of the support frame, and a drive mechanism for rotating the grinding jar below the support frame. The drive mechanism includes a drive motor located at the bottom of the mounting base, the output shaft of the drive motor being connected to the rotating shaft of the sun gear, planetary gears meshing around the sun gear, planetary carriers on both the top and bottom of the planetary gears, and a gear ring meshing with the planetary gears on the outside of the planetary carrier. The gear ring is fixedly mounted on the support frame of the mounting base.

2. The pretreatment grinder for detecting fresh eggs and egg products according to claim 1, characterized in that: The ball mill jar includes an outer cylinder and an inner cylinder installed inside the outer cylinder. A cylinder cover is provided on the top of the outer cylinder by a threaded connection. After the cylinder cover is screwed into place, the bottom surface of the cylinder cover abuts against the upper surface of the inner cylinder.

3. The pretreatment grinder for detecting fresh eggs and egg products according to claim 2, characterized in that: The inner cylinder is made of MC nylon material, and multiple grinding balls are placed inside the inner cylinder. The grinding balls are small balls with magnetic properties.

4. The pretreatment grinder for detecting fresh eggs and egg products according to claim 2, characterized in that: The planetary gears are four in number and are respectively installed at the four corners of the square planetary carrier. A transmission rod is provided in the middle of the planetary gears, passing through the base and connecting to the bottom of the outer cylinder.

5. A pretreatment grinder for detecting fresh eggs and egg products according to any one of claims 1 to 4, characterized in that: The grinding instrument body is also equipped with an operation panel, with operation buttons below the operation panel, and heat dissipation holes on both sides of the grinding instrument body.

6. A pretreatment grinder for detecting fresh eggs and egg products according to any one of claims 1 to 4, characterized in that: The mounting base is connected to a top cover via a hinge, and a handle is installed on the front side of the top cover for easy lifting and opening.

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