A grinding mechanism for finely grinding food products

Abstract

This invention provides a grinding mechanism for finely grinding food. The grinding mechanism includes an outer frame, an outer cylinder, an inner roller, and an outer cover. In the grinding operation, the outer cylinder is horizontally mounted with its rotation axis distributed horizontally. A plate frame is installed at the end of the inner roller near the bottom of the outer cylinder. The outer cover is positioned at the end of the inner roller away from the bottom of the outer cylinder. The inner roller includes a grinding outer roller and a central shaft that are interchangeably mounted. The central shaft is positioned between the plate frame and the outer cover. The grinding outer roller is sleeved on the outside of the central shaft and is driven to rotate by a drive component within the central shaft. The rotation axis of the grinding outer roller is parallel to the rotation axis of the outer cylinder, and the grinding outer roller is rolled and installed at the bottom of the outer cylinder. The grinding outer roller and the outer cylinder rotate in opposite directions. This invention employs a horizontally combined structure with independent rotation of the outer cylinder and inner roller to achieve efficient grinding under automatic material distribution. The detachable and modular connection also allows for more convenient cleaning after grinding.

Description

Technical Field

[0001] This invention relates to a grinding mechanism, and more particularly to a grinding mechanism for finely grinding food. Background Technology

[0002] The grinding mechanism for finely grinding food is a key piece of equipment in the food processing field. It generally includes a grinding bowl and a grinding roller, and uses the rolling friction of the grinding roller in the grinding bowl to grind the material into powder. As shown in the patent for a food fermentation and grinding device (publication number CN215029525U), it includes a material box, with a motor bolted to the bottom of the material box. A drive shaft is welded to the output end of the motor, and a sealing box is rotatably connected to the upper surface of the drive shaft. The surface of the sealing box is welded to the inner wall of the material box via a connecting rod. A grinding mechanism is set inside the sealing box, and a juice filtering mechanism is set on the surface of the drive shaft. By pouring the harvested grapes into the upper part of the material box, two grinding rollers rotate to grind and crush the grapes, achieving efficient grinding and separation of the grapes. This makes the grape juice very uniform during the grinding and pressing process. After fine filtration through the filter cloth, impurities in the grape juice can be better removed, improving the taste after fermentation. However, in such devices, the internal grinding mechanism is generally fixedly connected inside the material box, making cleaning extremely inconvenient. Summary of the Invention

[0003] To solve the above-mentioned technical problems, the purpose of this invention is to provide a grinding mechanism for finely grinding food. It adopts a horizontal combination structure with independent rotation of the outer cylinder and the inner roller to achieve a high-efficiency grinding effect under automatic material uniformity. At the same time, the overall detachable and combinable connection method also makes it easier to clean when the grinding is finished.

[0004] This invention provides the following technical solution: A grinding mechanism for finely grinding food includes an outer frame, an outer cylinder mounted on the outer frame, an inner roller detachably mounted inside the outer cylinder, and an outer cover detachably connected to the port of the outer cylinder. In the grinding operation, the outer cylinder is horizontally mounted with its rotation axis distributed horizontally. A plate frame is mounted on the end of the inner roller near the bottom of the outer cylinder. The outer cover is positioned on the end of the inner roller away from the bottom of the outer cylinder, and both the outer cover and the plate frame are positioned on the outer frame. The inner roller includes a grinding outer roller and a central shaft mounted on the outer frame. The central shaft is positioned between the plate frame and the outer cover. The grinding outer roller is sleeved on the outside of the central shaft and is driven to rotate by a drive component inside the central shaft. The rotation axis of the grinding outer roller is parallel to the rotation axis of the outer cylinder, and the grinding outer roller is rolled and installed at the bottom of the outer cylinder. The grinding outer roller and the outer cylinder rotate in opposite directions. When grinding is required, the plate frame and inner roller are first placed inside the outer cylinder. Then, the material to be ground is poured into the outer cylinder, and the outer cover is closed. The outer cylinder and the grinding roller are then driven to rotate in opposite directions. At this time, the material is rotated and stirred inside the cylinder by the outer cylinder. Meanwhile, the material falling to the bottom layer is ground as it passes between the grinding roller and the outer cylinder. The horizontal combination mode of bidirectional independent rotation of the outer cylinder and the grinding roller not only ensures that the material falls freely when it rotates to the top layer with the outer cylinder, but also collides and crushes during the fall. The material falling between the outer cylinder and the grinding roller is squeezed and ground as the outer cylinder and the grinding roller rotate. Therefore, the grinding fluid is more efficient and the probability of the ground powder adhering to the cylinder wall is reduced. At the same time, the detachable and combinable connection method also makes it easier to clean when the grinding is finished.

[0005] Preferably, in the grinding working state, the plate frame is attached to the bottom of the outer cylinder, and a set of positioning rods extending from the center of the bottom of the outer cylinder are provided in its center. The positioning rods are positioned and installed on the outer frame by inserting pins. After the pins are inserted and positioned on the positioning rods and the outer frame, the positioning of the outer frame, the positioning rods and the plate frame can be realized. At this time, the plate frame and the outer cover position the inner roller, so that when the outer cylinder rotates, the inner roller can move independently relative to the outer cylinder. Moreover, when disassembling, only the pins need to be removed, which is more convenient.

[0006] Preferably, two sets of triangular wedges are provided at each end of the central shaft, and two sets of mounting grooves are opened on the sides of the outer cover and the plate frame. Triangular pressure blocks are built into the mounting grooves. The top of the triangular pressure blocks is guided and connected to the guide holes of the corresponding outer cover and the plate frame through the guide shaft. A set of compression springs for pressing against the end of the guide shaft is also provided at the bottom of the guide hole. When the triangular wedges are placed in the mounting grooves, the inclined surface of the triangular wedges abuts against the inclined surface of the triangular pressure blocks. When the grinding gap between the grinding outer roller and the outer cylinder forms accumulated material, the triangular wedges press against the compression springs through the triangular pressure blocks and the guide shaft to widen the gap between the grinding outer roller and the outer cylinder. The elastic pressing not only avoids jamming, but also makes the connection and installation more convenient and flexible.

[0007] Preferably, a set of drive holes is also provided along the axial direction at the center of the central shaft. The drive component includes a rotating shaft that is converted and installed in the drive holes, multiple sets of external gear rings installed outside the rotating shaft, an internal gear ring that is set in the grinding outer roller and corresponds one-to-one with the external gear rings, and a transition wheel that is converted and installed in the central shaft and meshes with the external gear rings and the internal gear rings. Therefore, when the rotating shaft is driven to rotate, the multiple sets of external gear rings can be rotated synchronously, and then the grinding outer roller is driven to rotate through the transition wheel. At the same time, the rotation of the grinding outer roller will not affect the fine adjustment of the position of the grinding outer roller relative to the plate frame and the outer cover, so as to adapt to the adjustment of the grinding gap between the grinding outer roller and the outer cylinder, which is more flexible.

[0008] Preferably, the drive unit further includes a rotary motor for driving the rotating shaft to rotate, the rotary motor being mounted inside the central shaft.

[0009] Preferably, an outer gear ring is provided on the outer cylinder, and an outer gear is mounted on the outer frame. The outer gear is driven to rotate by an outer motor and meshes with the outer gear ring. A corner motor is connected to one corner of the outer frame, which drives the grinding mechanism to rotate. Thus, automated grinding switching can be achieved through the outer motor and the corner motor. In the grinding working state, the corner motor drives the outer cylinder to be in a horizontal state. After installation, the outer motor can drive the outer cylinder to achieve automated rotation. In the unloading state after grinding, after removing the outer cover, the corner motor can be driven to rotate 90°, causing the port of the outer cylinder to tilt downwards. At the same time, when the inner roller is unrestricted at the bottom, it can also be tilted out for subsequent cleaning operations.

[0010] Preferably, the end of the outer frame is provided with a pressure bar driven to rotate by a pressing motor, and the outer side of the outer cover is also provided with a pressure groove that cooperates with the pressure bar for positioning. When the pressure bar rotates into the pressure groove, the positioning between the outer cover and the outer frame can be realized. When unloading is required, it is only necessary to drive the pressure bar to rotate so that the pressure bar disengages from the pressure groove. When it rotates to a horizontal position, it is easy for the cover to detach from the outer frame.

[0011] Preferably, the top and bottom of the outer cover are also provided with arc-shaped blocks that hug the outer cylinder, and the arc-shaped block located on the bottom side of the outer cover abuts against the outer frame, thereby improving the stability of the outer cover relative to the outer cylinder and the outer frame during operation.

[0012] Preferably, the arc-shaped block and the outer cylinder are connected by ball bearings, so that rolling friction is formed between the outer cylinder and the arc-shaped block when the outer cylinder rotates, thereby reducing the impact of friction.

[0013] Preferably, the outer cover is also provided with a set of scrapers that abut against the top layer of the outer cylinder body. The scrapers are used to scrape off the abrasive material adhering to the outer cylinder wall when the outer cylinder rotates.

[0014] The beneficial effects of this invention are as follows: The grinding mechanism for finely grinding food provided by this invention adopts a horizontal combination structure with independent rotation of the outer cylinder and the inner roller to achieve a highly efficient grinding effect under automatic material distribution. Simultaneously, the detachable and modular connection method allows for more convenient cleaning after grinding. When grinding is required, first, the plate frame along with the inner roller is placed inside the outer cylinder. Then, the material to be ground is poured into the outer cylinder. Next, the outer cover is closed, and the outer cylinder and the grinding roller are driven to rotate in opposite directions. That is, if the outer cylinder rotates clockwise, the outer roller rotates counterclockwise. At this time, the material can be ground from the outside... The drum drives the rotation and stirring inside, while the material falling to the bottom is ground as it passes between the outer grinding roller and the outer drum. The horizontal combination mode of the bidirectional independent rotation of the outer drum and the outer grinding roller not only ensures that the material falls freely as it rotates to the top layer with the outer drum, but also collides and crushes during the fall. The material falling between the outer drum and the outer grinding roller is squeezed and ground as the outer drum and the outer grinding roller rotate, so the grinding fluid is more efficient and the probability of the ground powder adhering to the drum wall is reduced. At the same time, the detachable and combinable connection method also makes it easier to clean when the grinding is finished. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a cross-sectional view of the structure of the present invention in the grinding working state; Figure 2 yes Figure 1 A structural diagram showing the process of removing the outer cover; Figure 3 This is a cross-sectional view of the structure of the present invention during unloading; Figure 4 This is a side view of the outer cover; Figure 5 This is a side view of the inner roller; Figure 6 This is a cross-sectional view of the structure of the present invention in the grinding working state in Embodiment 2; Markings in the diagram: 1. Outer frame; 2. Outer cylinder; 3. Inner roller; 4. Outer cover; 5. Plate frame; 6. Positioning rod; 7. Pin; 8. Outer gear ring; 9. Outer gear; 10. Outer motor; 11. Corner motor; 12. Pressure strip; 13. Pressing motor; 14. Pressure groove; 15. Arc block; 16. Ball bearing; 17. Scraper; 31. Grinding outer roller; 32. Central shaft; 33. Triangular inclined block; 34. Triangular pressure block; 35. Guide shaft; 36. Compression spring; 37. Rotating shaft; 38. Transition wheel; 39. Outer gear ring. Detailed Implementation

[0016] Example 1 like Figure 1-5 As shown, a grinding mechanism for finely grinding food, in this embodiment, includes an outer frame 1, an outer cylinder 2 mounted on the outer frame 1, an inner roller 3 detachably mounted inside the outer cylinder 2, and an outer cover 4 detachably connected to the port of the outer cylinder 2. In the grinding operation, the outer cylinder 2 is horizontally mounted with its rotation axis 37 horizontally distributed. A plate frame 5 is mounted on the end of the inner roller 3 near the bottom of the outer cylinder 2. The outer cover 4 is positioned at the end of the inner roller 3 away from the bottom of the outer cylinder 2, and the outer cover 4 and... The plate frame 5 is positioned on the outer frame 1. The inner roller 3 includes a grinding outer roller 31 and a central shaft 32 that are connected and installed. The central shaft 32 is positioned between the plate frame 5 and the outer cover 4. The grinding outer roller 31 is sleeved on the outside of the central shaft 32 and is driven to rotate by the driving component inside the central shaft 32. The rotation axis 37 of the grinding outer roller 31 is parallel to the rotation axis 37 of the outer cylinder 2. The grinding outer roller 31 is rolled and installed on the bottom layer of the outer cylinder 2. The grinding outer roller 31 and the outer cylinder 2 rotate in opposite directions. When grinding is required, the plate frame 5 and inner roller 3 are first placed inside the outer cylinder 2. Then, the material to be ground is poured into the outer cylinder 2, and the outer cover 4 is closed. The outer cylinder 2 and the grinding outer roller 31 are driven to rotate in opposite directions. At this time, the material can be rotated and stirred inside the cylinder by the outer cylinder 2. Meanwhile, the material falling to the bottom can be ground when passing between the grinding outer roller 31 and the outer cylinder 2. The horizontal combination mode of bidirectional independent rotation of the outer cylinder 2 and the grinding outer roller 31 not only ensures that the material falls freely when it rotates to the top layer with the outer cylinder 2, but also collides and crushes when it falls. The material falling between the outer cylinder 2 and the grinding outer roller 31 can be squeezed and ground when the outer cylinder 2 and the grinding outer roller 31 rotate. Therefore, the grinding liquid is more efficient and the probability of the ground powder adhering to the cylinder wall is reduced. At the same time, the detachable connection method also makes it easier to clean when the grinding is finished.

[0017] In the grinding operation, the plate frame 5 is attached to the bottom of the outer cylinder 2. A set of positioning rods 6 are provided in the center of the outer cylinder 2, which are inserted and positioned on the outer frame 1 by a pin 7. After the pin 7 is inserted and positioned on the positioning rods 6 and the outer frame 1, the positioning of the outer frame 1, the positioning rods 6 and the plate frame 5 can be realized. At this time, the plate frame 5 and the outer cover 4 position the inner roller 3, so that when the outer cylinder 2 rotates, the inner roller 3 can move independently relative to the outer cylinder 2. Moreover, when disassembling, only the pin 7 needs to be removed, which is more convenient.

[0018] Two sets of triangular wedges 33 are provided at each end of the central shaft 32. Two sets of mounting grooves are opened on the sides of the outer cover 4 and the plate frame 5. Triangular pressure blocks 34 are built into the mounting grooves. The top of the triangular pressure blocks 34 are guided and connected to the guide holes of the corresponding outer cover 4 and plate frame 5 through the guide shaft 35. A set of compression springs 36 for pressing against the end of the guide shaft 35 are also provided at the bottom of the guide hole. When the triangular wedges 33 are placed in the mounting groove, the inclined surface of the triangular wedges 33 abuts against the inclined surface of the triangular pressure blocks 34. When the grinding gap between the grinding outer roller 31 and the outer cylinder 2 forms accumulated material, the triangular wedges 33 press against the compression springs 36 through the triangular pressure blocks 34 and the guide shaft 35 to expand the gap between the grinding outer roller 31 and the outer cylinder 2. The elastic pressing not only avoids jamming, but also makes the connection and installation more convenient and flexible.

[0019] A set of drive holes is also provided along the axial direction at the center of the central shaft 32. The drive components include a rotating shaft 37 that is converted and installed in the drive holes, multiple sets of external gear rings 39 installed outside the rotating shaft 37, an internal gear ring that is set in the grinding outer roller 31 and corresponds one-to-one with the external gear rings 39, and a transition wheel 38 that is converted and installed in the central shaft 32 and meshes with the external gear rings 39 and the internal gear rings. Therefore, when the rotating shaft 37 is driven to rotate, the multiple sets of external gear rings 39 can be rotated synchronously, and then the grinding outer roller 31 is driven to rotate through the transition wheel 38. At the same time, the rotation of the grinding outer roller 31 will not affect the fine adjustment of the position of the grinding outer roller 31 relative to the plate frame 5 and the outer cover 4, so as to adapt to the adjustment of the grinding gap between the grinding outer roller 31 and the outer cylinder 2, which is more flexible.

[0020] The drive unit also includes a rotary motor for driving the rotation of the rotating shaft 37, the rotary motor being mounted inside the central shaft 32.

[0021] The outer cylinder 2 is provided with an outer gear ring 8, and an outer gear 9 is mounted on the outer frame 1. The outer gear 9 is driven to rotate by the outer motor 10 and meshes with the outer gear ring 8. A corner motor 11 is connected to one corner of the outer frame 1, and drives the grinding mechanism to rotate. Thus, the grinding switching can be realized through the outer motor 10 and the corner motor 11. In the grinding working state, the corner motor 11 drives the outer cylinder 2 to be in a horizontal state. After installation, the outer motor 10 can drive the outer cylinder 2 to realize the automatic rotation operation. In the unloading state after grinding, after removing the outer cover 4, the corner motor 11 can be driven to rotate 90°, so that the port of the outer cylinder 2 tilts downward. At the same time, when the inner roller 3 is unrestricted at the bottom, it can also be tilted out to facilitate subsequent cleaning operations.

[0022] The end of the outer frame 1 is provided with a pressure bar 12 driven to rotate by the pressing motor 13. The outer side of the outer cover 4 is also provided with a pressure groove 14 that cooperates with the pressure bar 12 for positioning. When the pressure bar 12 rotates into the pressure groove 14, the positioning between the outer cover 4 and the outer frame 1 can be realized. When unloading is required, it is only necessary to drive the pressure bar 12 to rotate so that the pressure bar 12 disengages from the pressure groove 14. When it rotates to a horizontal position, it is easy for the cover to detach from the outer frame 1.

[0023] The top and bottom of the outer cover 4 are also provided with arc-shaped blocks 15 that hug the outer cylinder 2, and the arc-shaped blocks 15 located on the bottom side of the outer cover 4 abut against the outer frame 1, thereby improving the stability of the outer cover 4 relative to the outer cylinder 2 and the outer frame 1 during operation.

[0024] Example 2 like Figure 6 As shown, a grinding mechanism for finely grinding food is provided. In this embodiment, the arc-shaped block 15 and the outer cylinder 2 are abutted by ball bearings 16, so that when the outer cylinder 2 rotates, rolling friction is formed between it and the arc-shaped block 15 to reduce the impact of friction.

[0025] The outer cover 4 is also provided with a set of scrapers 17 that abut against the top layer of the outer cylinder 2. The scrapers 17 are used to scrape off the abrasive material adhering to the cylinder wall of the outer cylinder 2 when the outer cylinder 2 rotates.

[0026] The working principle of this invention is as follows: The grinding mechanism for finely grinding food provided by this invention adopts a horizontal combination structure with independent rotation of the outer cylinder 2 and the inner roller 3 to achieve a high-efficiency grinding effect under automatic material uniformity. The detachable and modular connection also allows for convenient cleaning after grinding. When grinding is required, the plate frame 5 along with the inner roller 3 is first placed inside the outer cylinder 2. Then, the material to be ground is poured into the outer cylinder 2, and the outer cover 4 is closed. The outer cylinder 2 and the grinding roller 31 are driven to rotate in opposite directions. At this time, the material can be rotated and stirred inside the cylinder by the outer cylinder 2. The material falling to the bottom layer can be ground as it passes between the grinding outer roller 31 and the outer cylinder 2. The horizontal combination mode of the bidirectional independent rotation of the outer cylinder 2 and the grinding outer roller 31 not only ensures that the material falls freely when it rotates to the top layer with the outer cylinder 2, but also collides and crushes during the fall. The material falling between the outer cylinder 2 and the grinding outer roller 31 can be squeezed and ground when the outer cylinder 2 and the grinding outer roller 31 rotate. Therefore, the grinding fluid is more efficient and the probability of the ground powder material adhering to the cylinder wall is reduced. At the same time, the detachable and combinable connection method also makes it easier to clean when the grinding is finished.

[0027] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A grinding mechanism for finely grinding food, characterized in that, The device includes an outer frame, an outer cylinder mounted on the outer frame, an inner roller detachably mounted inside the outer cylinder, and an outer cover detachably connected to the port of the outer cylinder. In the grinding operation, the outer cylinder is horizontally mounted with its rotation axis distributed horizontally. A plate frame is mounted on the end of the inner roller near the bottom of the outer cylinder. The outer cover is positioned on the end of the inner roller away from the bottom of the outer cylinder, and both the outer cover and the plate frame are positioned on the outer frame. The inner roller includes a grinding outer roller and a central shaft mounted on the outer frame. The central shaft is positioned between the plate frame and the outer cover. The grinding outer roller is sleeved on the outside of the central shaft and is driven to rotate by a drive component inside the central shaft. The rotation axis of the grinding outer roller is parallel to the rotation axis of the outer cylinder, and the grinding outer roller is rolled and installed at the bottom of the outer cylinder. The grinding outer roller and the outer cylinder rotate in opposite directions. Two sets of triangular wedges are provided at each end of the central shaft. Two sets of mounting grooves are opened on the sides of the outer cover and the plate frame. Triangular pressure blocks are placed inside the mounting grooves. The top of the triangular pressure blocks is guided and connected to the guide holes of the corresponding outer cover and the plate frame through the guide shaft. A set of compression springs for pressing against the end of the guide shaft is also provided at the bottom of the guide hole. When the triangular wedges are placed in the mounting grooves, the inclined surface of the triangular wedges abuts against the inclined surface of the triangular pressure blocks. When the grinding gap between the grinding outer roller and the outer cylinder forms accumulated material, the triangular wedges press against the compression springs through the triangular pressure blocks and the guide shaft to widen the gap between the grinding outer roller and the outer cylinder.

2. The grinding mechanism for finely grinding food according to claim 1, characterized in that, In the grinding process, the plate frame is attached to the bottom of the outer cylinder, and a set of positioning rods protruding from the center of the bottom of the outer cylinder are provided in its center. The positioning rods are positioned and installed on the outer frame by means of pins.

3. The grinding mechanism for finely grinding food according to claim 1, characterized in that, The center shaft is also provided with a set of drive holes along the axial direction. The drive component includes a rotating shaft that is converted and installed in the drive holes, multiple sets of external gear rings installed outside the rotating shaft, an internal gear ring that is set in the grinding outer roller and corresponds one-to-one with the external gear rings, and a transition wheel that is converted and installed in the center shaft and meshes with the external gear rings and the internal gear rings.

4. The grinding mechanism for finely grinding food according to claim 3, characterized in that, The drive unit also includes a rotary motor for driving the rotating shaft to rotate, the rotary motor being mounted inside the central shaft.

5. The grinding mechanism for finely grinding food according to claim 1, characterized in that, The outer cylinder is provided with an outer gear ring, and an outer gear is interchangeably installed on the outer frame. The outer gear is driven to rotate by an outer motor and meshes with the outer gear ring. A corner motor is connected to one corner of the outer frame, which drives the grinding mechanism to rotate.

6. The grinding mechanism for finely grinding food according to claim 5, characterized in that, The end of the outer frame is provided with a pressure bar that is driven to rotate by a pressing motor, and the outer side of the outer cover is also provided with a pressure groove that is matched and limited by the pressure bar.

7. The grinding mechanism for finely grinding food according to claim 6, characterized in that, The top and bottom of the outer cover are also provided with arc-shaped blocks that hug the outer cylinder, and the arc-shaped block located on the bottom side of the outer cover abuts against the outer frame.

8. The grinding mechanism for finely grinding food according to claim 7, characterized in that, The arc-shaped block and the outer cylinder are connected by ball bearings.

9. The grinding mechanism for finely grinding food according to claim 8, characterized in that, The outer cover is also provided with a set of scrapers that abut against the top layer of the outer cylinder. The scrapers are used to scrape off the abrasive material adhering to the outer cylinder wall when the outer cylinder rotates.

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