Grinding module and grinding machine
By designing a detachable grinding module, the problem of difficult disassembly of the cutter head in existing grinding machines is solved, enabling convenient disassembly and cleaning of the cutter head, ensuring grinding effect and user health, and the structure is simple and low in cost.
Patent Information
- Application Number
- CN202521924126.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-08
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-09-08
AI Technical Summary
In existing grinding mills, the inner and outer cutter discs are difficult to remove from the housing, resulting in material residue that affects grinding uniformity and may also affect health.
A grinding module was designed, including a housing, a first cutter head, and a second cutter head. The cutter head can be easily disassembled through snap-fit and threaded connection. The cutter head can be disassembled and cleaned by coupling and disengaging the shaft with the motor output end.
It enables easy disassembly and cleaning of the cutter head, avoids material residue, ensures grinding effect and user health, and has a simple structure and low cost.
Smart Images

Figure CN224671338U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of grinding machine especially grinding module and grinding machine. BACKGROUND
[0002] Grinding machine, such as bean grinder or coffee machine, usually includes grinding cylinder, motor arranged on the upper end of grinding cylinder and grinding mechanism arranged on the lower end of grinding cylinder. Grinding mechanism usually includes shell, outer cutter head is fixedly arranged in the shell, the upper and lower ends of shell rotatably pass through rotating shaft, inner cutter head is fixedly sleeved on rotating shaft, the output end of motor is connected to the upper end of rotating shaft. Inner cutter head and outer cutter head gap fit, and the material entering is ground.
[0003] However, since the rotating shaft, inner cutter head and outer cutter head participating in grinding are fixed in the shell, it is difficult to disassemble them from the shell for cleaning, so that the material remains on the inner cutter head and outer cutter head, which affects the uniformity of grinding and may affect health.
[0004] It should be noted that the information disclosed in the above background section is only used to strengthen the understanding of the background of the present disclosure, and therefore can include information that does not constitute prior art known to those of ordinary skill in the art. SUMMARY
[0005] In view of the deficiencies of the prior art, the utility model discloses grinding module and grinding machine to solve the problem that the inner cutter head and outer cutter head in the grinding module are difficult to disassemble from the shell.
[0006] The technical scheme adopted by the utility model is as follows: Grinding module for grinding machine, the grinding machine includes grinding cylinder, the grinding cylinder is the hollow structure of lower end opening, the upper end of the grinding cylinder is provided with motor, and the output end of the motor passes through and extends into the inside of the grinding cylinder. The grinding module comprises: a shell, which is a hollow structure with an upper end opening, is arranged at the lower end of the grinding cylinder, and a discharge port is opened at the lower end; a connecting seat is erected on the inner side of the shell and corresponds to the inner side of the discharge port; a first cutter head is a hollow structure, is sleeved on the inner side of the shell and is clamped with the inner wall of the shell; a second cutter head is arranged on the inner side of the first cutter head, the outer side is gap fitted with the inner side of the first cutter head, the inside is fixedly penetrated through the shaft body, the lower end of the shaft body is inserted into the connecting seat, and the upper end is coupled with the output end of the motor. The output end of the motor drives the rotation of the shaft body, and the shaft body drives the axial rotation of the second cutter head around the shaft body.
[0007] Further technical scheme is that the shell comprises: a cylinder portion clamped with the inner side of the grinding cylinder; an inner side is provided with an inner edge extending out of the upper end of the cylinder portion, and the inner edge is clamped on the inner side of the cylinder portion; and a base is fixed to the lower end of the cylinder portion, and the discharge port is opened in the middle part of the base.
[0008] Further, the grinding module comprises a bearing, an outer ring of the bearing is embedded on an upper end of the connecting seat, and a lower end of the shaft body is inserted into an inner ring of the bearing.
[0009] Further, the second cutter disc comprises a claw disc arranged on an upper end of the shaft body, a plurality of claws are arranged on an upper end of the claw disc in a ring shape, and the claws are clamped into grooves of an output end of the motor.
[0010] Further, the grinding module comprises a rotating sleeve which is a hollow cylinder with two open ends, the rotating sleeve is sleeved on the cylinder part at an upper end and is sleeved on the discharge port at a lower end and is clamped with the base, and the rotating sleeve comprises a plurality of clamping blocks arranged on an inner wall of the rotating sleeve in a ring shape, and grooves are arranged on the clamping blocks; the first cutter disc comprises clamping grooves protruding from an outer side of the first cutter disc and protruding blocks protruding from the outer side of the first cutter disc and located in the clamping grooves; when the first cutter disc is rotated, the clamping blocks are clamped into the clamping grooves, and the protruding blocks are clamped into the grooves.
[0011] Further, the clamping blocks comprise a horizontal rod and a vertical rod connected to a side of the horizontal rod away from a rotating direction of the first cutter disc, and the grooves are arranged on an inner side of the horizontal rod.
[0012] Further, the first cutter disc comprises a handle rotatably arranged between the inner sides of the first cutter disc.
[0013] Further, a lower end of the base extends to an extension part outside the discharge port; the grinding module comprises a bottom cover fixed to a lower end of the extension part, an outer diameter of the bottom cover is larger than an outer diameter of the extension part, a variable-diameter cylinder is arranged in a middle part of the bottom cover, the variable-diameter cylinder is connected to the discharge port, a rotating seat which is a hollow cylinder with two open ends is sleeved on an inner side of the cylinder part, is clamped between the cylinder part and the base, and is screw-connected to an outer side of the rotating sleeve on an inner side; and a rotating disc which is a hollow ring is sleeved on an outer side of the extension part, is clamped between the bottom cover and the base, and has a connecting rod arranged on an upper end, the connecting rod is connected to the rotating seat through the base.
[0014] The embodiment also discloses a grinding machine, which comprises a grinding cylinder, a motor arranged on an upper end of the grinding cylinder, an output end of the motor penetrating into an inside of the grinding cylinder, and the grinding module as described above arranged on a lower end of the grinding cylinder, and an upper end of the second cutter disc being coupled to the output end of the motor.
[0015] The embodiment has the following advantages: (1) The grinding module and the grinding machine according to the embodiments of the present utility model can disassemble the first cutter head by sleeving and clamping the first cutter head inside the housing and then rotating the first cutter head to disengage it from the housing. For the second cutter head, a fixing shaft body is fixedly penetrated inside, the lower end of the shaft body is inserted into a connecting seat, and the upper end is coupled to the output end of the motor. When the grinding module is disassembled from the grinding cylinder, the upper end of the shaft body disengages from the output end of the motor, and the shaft body and the second cutter head can be directly pulled out to complete the disassembly of the second cutter head. All components inside the grinding module can be disassembled and cleaned, avoiding material residue inside the grinding module and ensuring the grinding effect and the health of users.
[0016] (2) Further, the upper end of the housing of the grinding module is clamped or disengaged from the lower end of the grinding cylinder, so that the upper end of the second cutter head can be coupled or disengaged from the output end of the motor. The overall installation and disassembly are convenient, and the grinding machine has fewer components in overall use, a simple structure, and a low equipment cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 An isometric view of the grinding machine of the present utility model.
[0018] Figure 2 A sectional view of the grinding machine of the present utility model.
[0019] Figure 3 An isometric view of the first cutter head and the second cutter head in the grinding module of the present utility model.
[0020] Figure 4 A front view structural schematic diagram of the second cutter head in the grinding module of the present utility model.
[0021] Figure 5 An isometric view of the rotating sleeve in the grinding module of the present utility model.
[0022] Figure 6 An exploded view of the rotating seat, the base, the turntable and the bottom cover in the grinding module of the present utility model.
[0023] In the figure: 1. Grinding cylinder; 2. Motor; 3. Housing; 31. Cylindrical part; 311. Inner edge; 312. Hook part; 32. Base; 321. Discharge port; 322. Connecting seat; 323. Link rod; 324. Bearing; 325. Extension part; 326. Arc-shaped groove; 4. First cutter head; 41. Card slot; 42. Convex block; 43. Handle; 5. Second cutter head; 51. Shaft body; 52. Claw disc; 6. Rotating sleeve; 61. Clamping block; 611. Cross bar; 612. Vertical bar; 62. Groove; 63. Insert block; 7. Rotating seat; 8. Turntable; 81. Connecting rod; 9. Bottom cover; 91. Reducing cylinder. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0024] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.
[0025] First embodiment: This embodiment discloses a grinding module.
[0026] Figure 1 This is an isometric view of the grinding machine of this utility model. Figure 1 As shown, the grinding module is used in a grinder. For example, the grinder can be a coffee grinder, a coffee maker, or a powder grinder, etc. The grinder includes a grinding cylinder 1, which is a hollow structure with an opening at the bottom. A motor 2 is mounted on the upper end of the grinding cylinder 1, and the output end of the motor 2 passes through and extends into the interior of the grinding cylinder 1.
[0027] The grinding module includes a housing 3, a connecting seat 322, a first cutting disc 4, and a second cutting disc 5.
[0028] Figure 2 This is a cross-sectional view of the grinding machine of this utility model. (See image below.) Figure 2 As shown, the housing 3 is a hollow structure with an open top, located at the lower end of the grinding cylinder 1, with a discharge port 321 at the lower end. The connecting seat 322 is mounted inside the base 32, positioned corresponding to the middle of the discharge port 321. The first cutter disc 4 is a hollow structure, with its outer side fitted inside the housing 3 and engaging with the inner wall of the housing 3. The second cutter disc 5 is located inside the first cutter disc 4, with its outer side clearance-fitted to the inner side of the first cutter disc 4. The shaft 51 is fixedly passed through the shaft, the lower end of which is inserted into the upper end of the connecting seat 322, and the upper end is coupled to the output end of the motor 2. The output end of the motor 2 drives the shaft 51 to rotate, and the shaft 51 drives the second cutter disc 5 to rotate around the axial direction of the shaft 51.
[0029] like Figure 2 As shown, exemplarily, the housing 3 includes a cylindrical portion 31 and a base 32. The cylindrical portion 31 is engaged with the inner side of the grinding cylinder 1. Specifically, an inner edge 311 extending from the upper end of the cylindrical portion 31 is provided on the inner side of the cylindrical portion 31, and the outer side of the inner edge 311 is engaged with the inner side of the grinding cylinder 1. The base 32 is fixed to the lower end of the cylindrical portion 31, and the discharge port 321 is opened in the middle of the base 32. A plurality of connecting rods 323 are circumferentially spaced on the connecting seat 322, and the connecting rods 323 are connected to the inner wall of the discharge port 321. The grinding module also includes a bearing 324, the outer ring of the bearing 324 is embedded in the upper end of the connecting seat 322, and the lower end of the shaft 51 is inserted into the inner ring of the bearing 324. Figure 3 This is an isometric view of the first and second cutting discs in the grinding module of this utility model. Figure 3 As shown, the first cutter head 4 is a combination of a conical outer blade sleeved and locked in a fixed sleeve, and the second cutter head 5 is a conical inner blade. Figure 4This is a front view schematic diagram of the second cutter head in the grinding module of this utility model. Figure 4 As shown, the second cutter head 5 includes a chuck disc 52, which is located on the upper end of the shaft body 51. Several chucks are arranged circumferentially on the upper end of the chuck disc 52, and the chucks are engaged in the slots at the lower end of the output end of the motor 2.
[0030] Figure 5 This is an isometric view of the rotating sleeve in the grinding module of this utility model. Figure 5 As shown, the grinding module further includes a rotating sleeve 6, which is a hollow cylinder open at both ends. The upper end is fitted inside the cylindrical portion 31, and the lower end is fitted inside the discharge port 321. The lower end of the rotating sleeve 6 is engaged with the base 32. The rotating sleeve 6 includes locking blocks 61 and grooves 62. Several locking blocks 61 are arranged circumferentially on the inner wall of the rotating sleeve 6. Grooves 62 are formed on the locking blocks 61. Figure 3 As shown, the first cutter head 4 includes a groove 41 and a protrusion 42. The groove 41 protrudes from the outer side of the first cutter head 4. The protrusion 42 protrudes from the outer side of the first cutter head 4 and is positioned inside the groove 41. When the first cutter head 4 is rotated, the locking block 61 engages in the groove 41, and simultaneously the protrusion 42 engages in the recess 62. Specifically, an insert 63 is provided on the outer side of the lower end of the rotating sleeve 6, and the insert 63 passes through the base 32. The locking block 61 includes a horizontal bar 611 and a vertical bar 612 connected to the side of the horizontal bar 611 away from the direction of rotation of the first cutter head 4. The recess 62 is formed inside the horizontal bar 611. When the groove 41 abuts against the vertical bar 612, the protrusion 42 is just engaged in the recess 62. Of course, in other embodiments of this utility model, the locking block 61 can also be provided on the inner wall of the cylindrical portion 31.
[0031] like Figure 3 As shown, the first cutter head 4 further includes a handle 43, which is rotatably disposed between the upper inner sides of the first cutter head 4. The user can rotate the first cutter head 4 by rotating the handle 43, so that it can be rotated to engage with or disengage from the rotating sleeve 6, which is convenient to use.
[0032] like Figure 5 As shown, furthermore, the lower end of the base 32 extends outward from the outlet 321 with an extension portion 325. (As...) Figure 1 , Figure 2 and Figure 6As shown, the grinding module includes a bottom cover 9, a rotating seat 7, and a turntable 8. The bottom cover 9 is fixed to the lower end of the extension 325. The outer diameter of the bottom cover 9 is larger than the outer diameter of the extension 325. A reducing cylinder 91 is provided in the middle, which is connected to the discharge port 321. The inner diameter of the lower end of the reducing cylinder 91 is smaller than the inner diameter of the upper end, which facilitates the collection of ground material. The rotating seat 7 is a hollow cylinder with openings at both ends. It is fitted inside the cylinder 31 and snapped between the cylinder 31 and the base 32. The inner side is threaded to the outer side of the rotating sleeve 6. The turntable 8 is a hollow ring, fitted outside the extension 325 and snapped between the bottom cover 9 and the base 32. A connecting rod 81 is provided at the upper end. The connecting rod 81 passes through the base 32 and connects to the rotating seat 7.
[0033] Figure 6 This is an exploded view of the rotating seat, base, turntable, and bottom cover in the grinding module of this utility model. Figure 1 , Figure 2 and Figure 6 As shown, exemplarily, a hook 312 is provided on the inner side of the cylindrical portion 31. The upper end of the rotating seat 7 is engaged in the hook 312, and the hook 312 and the base 32 together restrict the vertical movement of the rotating seat 7. An arc-shaped groove 326 is provided on the base 32 for the connecting rod 81 to pass through, and the arc-shaped groove 326 restricts the rotation range of the connecting rod 81. When the turntable 8 rotates, the connecting rod 81 drives the rotating seat 7 to rotate. Since the insert 63 of the rotating sleeve 6 restricts the rotation of the rotating sleeve 6, the rotating sleeve 6 and the rotating seat 7 undergo threaded displacement, which drives the first cutter disc 4 to slide up and down. The gap between the first cutter disc 4 and the second cutter disc 5 changes, thereby adjusting the grinding fineness of the material.
[0034] In this embodiment, the first cutter disc 4 is disassembled by fitting and snapping it into the inner side of the housing 3, and rotating the first cutter disc 4 to disengage it from the housing 3. The second cutter disc 5 is then inserted through and fixed to the shaft 51. The lower end of the shaft 51 is inserted into the connecting seat 322, and the upper end is coupled to the output end of the motor 2. When the grinding module is removed from the grinding cylinder 1, the upper end of the shaft 51 is disengaged from the output end of the motor 2. The second cutter disc 5 can be disassembled by directly pulling out the shaft 51 and the second cutter disc 5. This allows for the disassembly and cleaning of all components inside the grinding module, preventing material residue inside the grinding module, and ensuring the grinding effect and the user's health.
[0035] Second embodiment: This embodiment discloses a grinding machine.
[0036] like Figure 1 and Figure 2 As shown, the grinding machine includes a grinding cylinder 1, a motor 2, and a grinding module. The motor 2 is located at the upper end of the grinding cylinder 1, and its output end passes through and extends into the interior of the grinding cylinder 1. In the first embodiment, the grinding module is located at the lower end of the grinding cylinder 1, and the upper end of the second cutter disc 5 is coupled to the output end of the motor 2. Exemplarily, the upper end of the housing 3 is snapped into the lower end of the grinding cylinder 1.
[0037] In this embodiment, the upper end of the housing 3 of the grinding module is engaged or disengaged from the lower end of the grinding cylinder 1, and the upper end of the second cutter disc 5 can be coupled or disengaged from the output end of the motor 2. The overall installation and disassembly are convenient, and the grinding machine uses fewer parts, has a simple structure, and low equipment cost.
[0038] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.
Claims
1. A grinding module, characterized in that, A grinding machine, the grinding machine including a grinding cylinder, the grinding cylinder being a hollow structure with an open lower end, a motor being disposed at the upper end of the grinding cylinder, the output end of the motor passing through and extending into the interior of the grinding cylinder; the grinding module including: The shell is a hollow structure with an opening at the top, located at the lower end of the grinding cylinder, with a discharge port at the lower end; A connecting seat is mounted inside the housing, positioned corresponding to the outlet. The first cutter head is a hollow structure, with its outer side sleeved inside the housing and engaged with the inner wall of the housing. The second cutter head is disposed inside the first cutter head, with its outer side clearance-fitted to the inner side of the first cutter head. The shaft is fixedly passed through the shaft, the lower end of which is inserted into the connecting seat, and the upper end is coupled to the output end of the motor. The output end of the motor drives the shaft to rotate, and the shaft drives the second cutter head to rotate around the axial direction of the shaft.
2. The grinding module according to claim 1, characterized in that, The housing includes: The cylindrical part is engaged with the inner side of the grinding cylinder; an inner edge extending from the upper end of the cylindrical part is provided on the inner side, and the inner edge is engaged with the inner side of the cylindrical part. The base is fixed to the lower end of the cylinder, and the discharge port is located in the middle of the base.
3. The grinding module according to claim 2, characterized in that, The grinding module includes: The bearing has its outer ring embedded in the upper end of the connecting seat; The lower end of the shaft is inserted into the inner ring of the bearing.
4. The grinding module according to claim 1, characterized in that, The second cutter head includes: A chuck disc is disposed on the upper end of the shaft body, and a plurality of chucks are arranged circumferentially on the upper end of the chuck disc. The chucks are engaged in the slots at the output end of the motor.
5. The grinding module according to claim 2, characterized in that, The grinding module includes: A rotating sleeve is a hollow cylinder open at both ends. The upper end is fitted inside the cylindrical portion, and the lower end is fitted inside the discharge port and engaged with the base. The rotating sleeve includes: A plurality of locking blocks are arranged circumferentially on the inner wall of the rotating sleeve; A groove is formed on the card block; The first cutter head includes: The slot protrudes from the outer side of the first tool disc; The protrusion protrudes from the outer side of the first cutter head and is positioned corresponding to the slot. When the first cutter head is rotated, the locking block engages in the locking slot, and at the same time, the protrusion engages in the groove.
6. The grinding module according to claim 5, characterized in that, The locking block includes a horizontal bar and a vertical bar connected to the side of the horizontal bar away from the direction of the first cutter head's screw-in, and the groove is formed inside the horizontal bar.
7. The grinding module according to claim 5, characterized in that, The first cutter head includes: A handle is rotatably disposed between the inner sides of the first cutter head.
8. The grinding module according to claim 5, characterized in that, The lower end of the base extends outward from the outer side of the discharge port; the grinding module includes: A bottom cover is fixed to the lower end of the extension. The outer diameter of the bottom cover is larger than the outer diameter of the extension. A variable diameter cylinder is provided in the middle, and the variable diameter cylinder is connected to the discharge port. The rotating seat is a hollow cylinder with openings at both ends. It is fitted inside the cylinder and snapped between the cylinder and the base. Its inner side is threaded to the outer side of the rotating sleeve. The turntable is a hollow ring that is fitted onto the outside of the extension and snapped between the bottom cover and the base. A connecting rod is provided at the upper end, and the connecting rod passes through the base and connects to the rotating seat.
9. A grinding mill, characterized in that, The grinding mill includes: Grinding cylinder; A motor is located at the upper end of the grinding cylinder, and the output end of the motor passes through and extends into the interior of the grinding cylinder. The grinding module as described in any one of claims 1 to 8 is disposed at the lower end of the grinding cylinder, and the upper end of the second cutter disc is coupled to the output end of the motor.