Grinding machine convenient to apply pressure

Abstract

The utility model provides a grinding machine convenient to apply pressure, which relates to the technical field of grinding machines, and comprises a herringbone rack, a case and a charging basket, the case is rotatably connected to the inner side of the herringbone rack, the charging basket is arranged above the case, a speed reducer is arranged above the inside of the case, the output end of the speed reducer is connected with a fixed middle shaft, and the fixed middle shaft is connected with a motor. A grinding disc is arranged at the bottom in the material barrel; the material barrel is used for containing grinding materials, the speed reducer drives the fixed middle shaft to rotate and drive, before operation, the rotary support is arranged on the outer side of the middle shaft clamping sleeve in a sleeved mode, the inner sleeve is synchronously arranged on the fixed middle shaft in a sleeved mode for linkage, and the fixed middle shaft drives the rotary support, the grinding wheel and the scraper to rotate for machining. The position of the rotating support is elastically limited through the plum blossom handle installed on the threaded head at the upper end of the fixed middle shaft for limiting and the downward pressure of the compression spring, lifting force from grinding materials is resisted, and the optimal grinding effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of grinders, in particular to a grinder that is convenient for applying pressure. Background Art

[0002] In the processing of cocoa beans, small grinding equipment is needed. This equipment is usually driven by a motor to rotate the grinding blade or grinding wheel at high speed. Through the contact and friction between the blade or grinding wheel and the cocoa beans, the cocoa beans are ground into fine particles, and finally form fine cocoa powder. It has the characteristics of small size, easy operation, high grinding efficiency, and controllable powder fineness. It is very suitable for small cocoa processing or home use. In addition, this grinder is easy to disassemble, which is convenient for users to clean and maintain.

[0003] When using this type of equipment, it is usually necessary to install a detachable blade or grinding wheel from above on a motor-driven shaft, and the blade or grinding wheel is driven to rotate by the rotation of the shaft for processing. During the processing, the abrasive is crushed and generates an upward lifting force, which can easily lift the blade or grinding wheel, affecting the processing effect, and there are installation hazards. Therefore, the utility model proposes a grinder that is convenient for applying pressure to solve the problems existing in the prior art. Utility Model Content

[0004] In response to the above problems, the utility model proposes a grinder that is easy to apply pressure. The grinder that is easy to apply pressure is limited by a plum blossom handle installed on the threaded head at the upper end of the fixed central axis, and the downward pressure of the compression spring, which elastically limits the position of the rotating bracket, resists the lifting force from the abrasive, achieves the best grinding effect, and has no safety hazards.

[0005] To achieve the purpose of the utility model, the utility model is implemented through the following technical solutions: a grinding machine that is convenient for applying pressure, comprising a herringbone frame, a chassis and a barrel, wherein the chassis is rotatably connected to the inner side of the herringbone frame, the barrel is arranged above the chassis, a reducer is provided above the interior of the chassis, and the output end of the reducer is connected to a fixed central shaft, a grinding disc is provided at the bottom of the interior of the barrel, and a central shaft jacket is connected to the middle position of the grinding disc through a sealing joint;

[0006] The upper end of the fixed central axis is movably extended to the interior of the central axis jacket, the outer movable sleeve of the central axis jacket is provided with a rotating bracket, and grinding wheels are provided at both ends of the rotating bracket, and scrapers are provided on both sides of the rotating bracket, and an inner sleeve is provided above the interior of the rotating bracket, the upper end of the fixed central axis passes through the inner sleeve and is linked to the inner sleeve, the upper end of the fixed central axis is provided with a threaded head, and a plum blossom handle is threadedly installed on the threaded head, and a compression spring is provided between the bottom of the plum blossom handle and the inner sleeve.

[0007] A further improvement is that the upper end of the fixed central shaft is a square shaft, the inner side of the inner sleeve is provided with a square hole, and the square hole is slidably fitted with the square shaft.

[0008] A further improvement is that a ball bearing is provided between the fixed central shaft and the sealing joint at the middle position of the grinding disc.

[0009] A further improvement is that: the output end of the reducer is provided with a reducer output shaft, and the lower end of the fixed middle shaft extends to the inner side of the reducer output shaft and is fixed.

[0010] A further improvement is that a fixed base plate is provided at the bottom of the reducer, a screw head is rotatably provided at the bottom of the fixed central shaft, and the lower end of the screw head passes through the fixed base plate and is fixed by a nut.

[0011] A further improvement is that: a rotating shaft is provided above both sides of the chassis, and the rotating shafts on both sides are respectively rotatably connected to the two sides of the herringbone frame, the inner sides of the two groups of rotating shafts extend into the interior of the chassis and are connected to a mounting plate, and the reducer is arranged below the mounting plate.

[0012] A further improvement is that: the inner sides of the tops of the two groups of rotating shafts are provided with bull's eyes, and the upper ends of the bull's eyes extend out of the chassis, and the lower part of the material barrel is supported on the bull's eyes.

[0013] A further improvement is that: both ends of the rotating bracket are provided with connecting shafts, and the grinding wheel sleeve is arranged on the connecting shaft and is limited by the sleeve and the gasket.

[0014] A further improvement is that the upper cover of the barrel is provided with a dust cover, and a avoidance hole is provided in the center of the dust cover, and the avoidance hole is used to avoid the upper end of the rotating bracket.

[0015] The beneficial effects of the utility model are:

[0016] 1. The utility model uses a material barrel to accommodate abrasives, and drives the fixed central shaft to rotate through a reducer. Before operation, the rotating bracket is sleeved onto the outside of the central shaft jacket, and the inner sleeve is synchronously sleeved onto the fixed central shaft for linkage. The fixed central shaft drives the rotating bracket, grinding wheel, and scraper to rotate for processing. In this process, the position of the rotating bracket is elastically limited by the plum blossom handle installed on the threaded head at the upper end of the fixed central shaft, and the downward pressure of the compression spring, thereby resisting the lifting force from the abrasive and achieving the best grinding effect without any safety hazards. By rotating the plum blossom handle to adjust the threaded position, the downward pressure can also be adjusted to adapt to the lifting force resistance needs of different abrasives.

[0017] 2. The lower end of the fixed central shaft of the utility model extends to the inner side of the output shaft of the reducer and is connected. The rotatable screw head at the lower end passes through the fixed base plate at the bottom of the reducer and is fixed by a nut, making the fixed central shaft more stable and becoming the overall support center, which is reliable and durable. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is the main view of the utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the material barrel of the present utility model;

[0020] Figure 3 This is a schematic diagram of the mounting plate of the utility model;

[0021] Figure 4 This is a schematic cross-sectional view of the utility model;

[0022] Figure 5 This is a schematic diagram of the disassembly of the present utility model.

[0023] Among them: 1. Herringbone frame; 2. Chassis; 3. Material barrel; 4. Reducer; 5. Fixed central axis; 6. Grinding disc; 7. Central axis jacket; 8. Rotating bracket; 9. Grinding wheel; 10. Scraper; 11. Inner sleeve; 12. Plum blossom handle; 13. Compression spring; 14. Ball bearing; 15. Reducer output shaft; 16. Fixed base plate; 17. Nut; 18. Rotating shaft; 19. Bull's eye; 20. Connecting shaft; 21. Dust cover; 22. Mounting plate. DETAILED DESCRIPTION

[0024] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with embodiments. The embodiments are only used to explain the present invention and do not constitute a limitation on the scope of protection of the present invention.

[0025] Example 1

[0026] according to Figure 1 、 2 , 3, 4, and 5, this embodiment proposes a grinding machine for convenient pressure application, comprising a herringbone frame 1, a chassis 2, and a barrel 3. The chassis 2 is rotatably connected to the inner side of the herringbone frame 1, and the barrel 3 is arranged above the chassis 2. A reducer 4 is provided above the interior of the chassis 2, and the output end of the reducer 4 is connected to a fixed central shaft 5. A grinding disc 6 is provided at the bottom of the interior of the barrel 3, and a central shaft jacket 7 is connected to the middle position of the grinding disc 6 through a sealing joint;

[0027] The upper end of the fixed central axis 5 is movably extended to the interior of the central axis jacket 7. The outer movable sleeve of the central axis jacket 7 is provided with a rotating bracket 8, and grinding wheels 9 are provided at both ends of the rotating bracket 8. Scrapers 10 are provided on both sides of the rotating bracket 8. An inner sleeve 11 is provided on the upper part of the interior of the rotating bracket 8. The upper end of the fixed central axis 5 passes through the inner sleeve 11 and is linked to the inner sleeve 11. The upper end of the fixed central axis 5 is provided with a threaded head, and a plum blossom handle 12 is threadedly installed on the threaded head. A compression spring 13 is provided between the bottom of the plum blossom handle 12 and the inner sleeve 11. During use, the abrasive is contained in the material barrel 3, and the fixed central shaft 5 is driven to rotate by the reducer 4. Before operation, the rotating bracket 8 is sleeved on the outside of the central shaft jacket 7, and the inner sleeve 11 is synchronously sleeved on the fixed central shaft 5 for linkage. The rotating bracket 8, the grinding wheel 9, and the scraper 10 are driven to rotate by the fixed central shaft 5 for processing. In this process, the position of the rotating bracket 8 is elastically limited by the plum blossom handle 12 installed on the threaded head of the upper end of the fixed central shaft 5, and the downward pressure of the compression spring 13, to resist the lifting force from the abrasive and achieve the best grinding effect without any safety hazards. The threaded position is adjusted by turning the plum blossom handle 12, and the downward pressure can also be adjusted to adapt to the lifting force resistance needs of different abrasives. The scraper 10 adopts a "Z" shape design, which can make the material in the material barrel 3 scrape and flow, thereby playing a uniform stirring role.

[0028] The upper end of the fixed central shaft 5 is a square shaft, and the inner side of the inner sleeve 11 is provided with a square hole that slidably fits the square shaft. Before operation, the rotating bracket 8 is placed on the outside of the central shaft jacket 7, and the inner sleeve 11 is simultaneously placed on the fixed central shaft 5 for linkage. Due to the slidable fit between the square hole and the square shaft, the fixed central shaft 5 can drive the rotating bracket 8, the grinding wheel 9, and the scraper 10 to rotate and perform processing.

[0029] A ball bearing 14 is provided between the sealing joint between the fixed central shaft 5 and the grinding disc 6. During use, the abrasive is contained in the material barrel 3, and the fixed central shaft 5 is driven to rotate by the reducer 4. During this process, due to the action of the ball bearing 14, the rotation of the fixed central shaft 5 does not affect the sealing joint and the grinding disc 6. The grinding wheel 9 and the grinding disc 6 are made of high-quality granite.

[0030] The output end of the reducer 4 is provided with a reducer output shaft 15, and the lower end of the fixed central axis 5 extends to the inner side of the reducer output shaft 15 and is fixed. The bottom of the reducer 4 is provided with a fixed base plate 16, and the bottom of the fixed central axis 5 is rotatably provided with a screw head, the lower end of which passes through the fixed base plate 16 and is fixed by a nut 17. The lower end of the fixed central axis 5 extends to the inner side of the reducer output shaft 15 and is connected, and the rotatable screw head at the lower end passes through the fixed base plate 16 at the bottom of the reducer 4 and is fixed by a nut 17, making the fixed central axis 5 more stable and becoming the supporting center of the whole, which is reliable and durable. The fixed central axis 5 plays the role of rotating the grinding wheel 9 and the barrel 3, thereby suppressing the swing of the barrel 3 caused by the elastic deformation of the central axis. The transmission utilizes a centrally integrated, custom-designed power structure (gear reducer and brushless motor). The hollow, custom-designed through-hole extends beyond the reducer to form a bearing sleeve. This structure allows the central axis (5) to penetrate the reducer's baseplate and become the integral central axis support for the machine. This breaks away from the traditional external gear meshing drive structure used in the market, significantly reducing the size and cost of the mechanism. The speed-adjustable drive utilizes a high-voltage, internal brushless drive, offering high low-speed torque, low noise, stable speed, reliable control, and economical operation.

[0031] A rotating shaft 18 is provided above both sides of the chassis 2, and the rotating shafts 18 on both sides are rotatably connected to the two sides of the herringbone frame 1. The inner sides of the two sets of rotating shafts 18 extend into the interior of the chassis 2 and are connected to a mounting plate 22. The reducer 4 is provided below the mounting plate 22. The chassis 2 can be manually rotated to adjust the angle within the herringbone frame 1, providing multiple functions.

[0032] The inner sides of the tops of the two sets of rotating shafts 18 are both provided with bull's eyes 19, and the upper ends of the bull's eyes 19 extend out of the chassis 2. The lower part of the barrel 3 is supported on the bull's eyes 19. The horizontal swing of the barrel 3 is assisted by the bull's eyes 19, so that the barrel 3 will not swing up and down or horizontally when rotating and pressurizing internally, which greatly improves the stability of the transmission.

[0033] Connecting shafts 20 are provided at both ends of the rotating bracket 8. The grinding wheel 9 is sleeved on the connecting shafts 20 and restrained in place by sleeves and washers. The grinding wheel 9 and grinding disc 6 are made of high-quality granite. This material offers exceptional hardness, wear resistance, a long lifespan, is food-safe, and offers high efficiency and cleanliness.

[0034] Example 2

[0035] according to Figure 1 、 2, 3, 4, and 5, this embodiment proposes a grinding machine for convenient pressure application, comprising a herringbone frame 1, a chassis 2, and a barrel 3. The chassis 2 is rotatably connected to the inner side of the herringbone frame 1, and the barrel 3 is arranged above the chassis 2. A reducer 4 is provided above the interior of the chassis 2, and the output end of the reducer 4 is connected to a fixed central shaft 5. A grinding disc 6 is provided at the bottom of the interior of the barrel 3, and a central shaft jacket 7 is connected to the middle position of the grinding disc 6 through a sealing joint;

[0036] The upper end of the fixed central axis 5 is movably extended to the interior of the central axis jacket 7. The outer movable sleeve of the central axis jacket 7 is provided with a rotating bracket 8, and grinding wheels 9 are provided at both ends of the rotating bracket 8. Scrapers 10 are provided on both sides of the rotating bracket 8. An inner sleeve 11 is provided on the upper part of the interior of the rotating bracket 8. The upper end of the fixed central axis 5 passes through the inner sleeve 11 and is linked to the inner sleeve 11. The upper end of the fixed central axis 5 is provided with a threaded head, and a plum blossom handle 12 is threadedly installed on the threaded head. A compression spring 13 is provided between the bottom of the plum blossom handle 12 and the inner sleeve 11. During use, the abrasive is contained in the material barrel 3, and the fixed central shaft 5 is driven to rotate by the reducer 4. Before operation, the rotating bracket 8 is sleeved on the outside of the central shaft jacket 7, and the inner sleeve 11 is synchronously sleeved on the fixed central shaft 5 for linkage. The rotating bracket 8, the grinding wheel 9, and the scraper 10 are driven to rotate by the fixed central shaft 5 for processing. In this process, the position of the rotating bracket 8 is elastically limited by the plum blossom handle 12 installed on the threaded head of the upper end of the fixed central shaft 5, and the downward pressure of the compression spring 13, to resist the lifting force from the abrasive and achieve the best grinding effect without any safety hazards. The threaded position is adjusted by turning the plum blossom handle 12, and the downward pressure can also be adjusted to adapt to the lifting force resistance needs of different abrasives. The scraper 10 adopts a "Z" shape design, which can make the material in the material barrel 3 scrape and flow, thereby playing a uniform stirring role.

[0037] The upper end of the fixed central shaft 5 is a square shaft, and the inner side of the inner sleeve 11 is provided with a square hole that slidably fits the square shaft. Before operation, the rotating bracket 8 is placed on the outside of the central shaft jacket 7, and the inner sleeve 11 is simultaneously placed on the fixed central shaft 5 for linkage. Due to the slidable fit between the square hole and the square shaft, the fixed central shaft 5 can drive the rotating bracket 8, the grinding wheel 9, and the scraper 10 to rotate and perform processing.

[0038] The upper cover of the barrel 3 is provided with a dust cover 21, and the center of the dust cover 21 is provided with a avoidance hole, which is used to avoid the upper end of the rotating bracket 8. The dust cover 21 is used to prevent dust, and the avoidance hole will not affect the normal rotation of the rotating bracket 8.

[0039] This convenient pressure-applying grinder uses a barrel 3 to hold the abrasive and is driven by a reducer 4 to rotate a fixed central shaft 5. Before operation, a rotating bracket 8 is placed outside the central shaft jacket 7, and an inner sleeve 11 is simultaneously placed on the fixed central shaft 5 to achieve a coordinated operation. The fixed central shaft 5 drives the rotating bracket 8, the grinding wheel 9, and the scraper 10 to rotate and process. During this process, the position of the rotating bracket 8 is elastically limited by a plum blossom handle 12 installed on the threaded head of the fixed central shaft 5, and the downward pressure of a compression spring 13 is applied to elastically limit the position of the rotating bracket 8, resisting the lifting force from the abrasive, achieving the optimal grinding effect without any safety hazards. By rotating the plum blossom handle 12 to adjust the threaded position, the downward pressure can also be adjusted to adapt to the lifting force required by different abrasives. At the same time, the lower end of the fixed central shaft 5 extends to the inside of the reducer output shaft 15 and is connected. The rotatable screw head at the lower end passes through the fixed base plate 16 at the bottom of the reducer 4 and is fixed by a nut 17, making the fixed central shaft 5 more stable and serving as the overall support center, reliable and durable.

[0040] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A grinding machine for convenient pressure application, comprising a herringbone frame (1), a chassis (2) and a barrel (3), characterized in that: The chassis (2) is rotatably connected to the inner side of the herringbone frame (1); the material barrel (3) is arranged above the chassis (2); a reducer (4) is arranged above the interior of the chassis (2); and the output end of the reducer (4) is connected to a fixed central shaft (5); a grinding disc (6) is arranged at the bottom of the interior of the material barrel (3); and a central shaft jacket (7) is connected to the middle position of the grinding disc (6) via a sealing joint; The upper end of the fixed central axis (5) is movably extended to the interior of the central axis jacket (7); a rotating bracket (8) is provided on the outer movable sleeve of the central axis jacket (7); grinding wheels (9) are provided at both ends of the rotating bracket (8); scrapers (10) are provided on both sides of the rotating bracket (8); an inner sleeve (11) is provided above the interior of the rotating bracket (8); the upper end of the fixed central axis (5) passes through the inner sleeve (11) and is linked to the inner sleeve (11); a threaded head is provided on the upper end of the fixed central axis (5); a plum blossom handle (12) is threadedly installed on the threaded head; a compression spring (13) is provided between the lower part of the plum blossom handle (12) and the inner sleeve (11).

2. A grinding machine with convenient pressure application according to claim 1, characterized in that: The upper end of the fixed central shaft (5) is a square shaft, and the inner side of the inner sleeve (11) is provided with a square hole, and the square hole is slidably fitted with the square shaft.

3. The grinding machine with convenient pressure application according to claim 1, characterized in that: A ball bearing (14) is provided between the sealing joint at the middle position of the fixed central shaft (5) and the grinding disc (6).

4. The grinding machine with convenient pressure application according to claim 1, characterized in that: The output end of the reducer (4) is provided with a reducer output shaft (15), and the lower end of the fixed middle shaft (5) extends to the inner side of the reducer output shaft (15) and is fixed.

5. The grinding machine with convenient pressure application according to claim 4, characterized in that: The bottom of the reducer (4) is provided with a fixed base plate (16), and the bottom of the fixed central shaft (5) is rotatably provided with a screw head, the lower end of the screw head passes through the fixed base plate (16) and is fixed by a nut (17).

6. The grinding machine with convenient pressure application according to claim 1, characterized in that: Rotating shafts (18) are provided above both sides of the chassis (2), and the rotating shafts (18) on both sides are rotatably connected to both sides of the herringbone frame (1), respectively. The inner sides of the two groups of rotating shafts (18) extend into the interior of the chassis (2) and are connected to a mounting plate (22), and the reducer (4) is provided below the mounting plate (22).

7. The grinding machine with convenient pressure application according to claim 6, characterized in that: The inner sides of the tops of the two groups of rotating shafts (18) are both provided with bull's eyes (19), and the upper ends of the bull's eyes (19) extend out of the chassis (2), and the lower part of the material barrel (3) is supported on the bull's eyes (19).

8. The grinding machine with convenient pressure application according to claim 1, characterized in that: Both ends of the rotating bracket (8) are provided with connecting shafts (20), and the grinding wheel (9) is sleeved on the connecting shaft (20) and limited by a sleeve and a gasket.

9. The grinding machine with convenient pressure application according to claim 1, characterized in that: The upper cover of the material barrel (3) is provided with a dust cover (21), and the center of the dust cover (21) is provided with an avoidance hole, and the avoidance hole is used to avoid the upper end of the rotating bracket (8).

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