Grinding machine
By employing a first and second limiting part in the grinder, combined with a rotation and sliding mechanism, the difficulty of opening and closing the bean hopper in a small grinder is solved, achieving space saving and miniaturization.
Patent Information
- Application Number
- CN202423278780.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2034-12-30
AI Technical Summary
The design of the opening and closing mechanism of the bean hopper in small grinders is difficult, which makes space layout difficult and makes it hard to achieve miniaturization.
By employing a first and second limiting part design, the door can be opened and closed by a combination of rotation and sliding off-center, thus avoiding the need for a dedicated switch for the internal space.
It achieves space saving in the internal structure of the small grinder, simplifies the operation of the bean hopper, and supports the miniaturization design of the grinder.
Smart Images
Figure CN223830912U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of grinding equipment technology, specifically to a grinding machine. Background Technology
[0002] A grinder is used to grind coffee beans into powder for users to brew coffee. Coffee beans are loaded into the grinder through a hopper, which has a certain capacity to accommodate multiple grinds. This necessitates that the hopper have an opening and closing mechanism. In existing technology, grinders typically have a dedicated switch for controlling the opening and closing of the hopper. However, with the increasing demand for miniaturization of grinders, the limited internal space makes it difficult to install a control switch on a smaller grinder. Therefore, the structure for opening and closing the hopper needs improvement. Utility Model Content
[0003] This application provides a grinder designed to solve the technical problem of the difficulty in opening and closing the bean hopper on a small-volume grinder.
[0004] Some embodiments of this application provide a grinding machine, including:
[0005] The grinding body is provided with a first limiting part; and,
[0006] The hopper body includes a hopper body and a hopper door. The hopper body is rotatably mounted on the grinding body. The hopper body is provided with a discharge port. The hopper door is slidably connected to the hopper body. The hopper door is provided with a second limiting part. The second limiting part is used to connect with the first limiting part, and the second limiting part can rotate relative to the first limiting part.
[0007] The first limiting part and the second limiting part are located at a position away from the rotation center of the chamber body. When the chamber body rotates on the grinding body, the chamber door slides on the chamber body and swings around the second limiting part so that the chamber door moves to the position of opening or closing the discharge port.
[0008] In some embodiments, the grinding body has an installation port, the first limiting portion includes a first protrusion, and the second limiting portion includes a recess;
[0009] The first protrusion is located at the bottom of the mounting opening, and the first protrusion protrudes from the grinding body toward the hopper body. The recessed portion is recessed from the hopper door toward the direction away from the first protrusion. When the hopper body is installed on the grinding body, the first protrusion is inserted into the recessed portion, and the recessed portion can rotate relative to the first protrusion.
[0010] In some embodiments, the container body includes a container body, a base, and a container cover;
[0011] The chamber cover and the base are respectively connected to both ends of the chamber body. The chamber door is located on the side of the base away from the grinding body. The base has an arc-shaped groove. The discharge port is located on the base. The first protrusion passes through the arc-shaped groove and connects with the recess. When the chamber body rotates, it drives the arc-shaped groove to move.
[0012] In some embodiments, the base is provided with a sliding groove, and the compartment door is provided with a sliding strip;
[0013] The recessed portion is located on the side of the slide bar, and the slide bar is slidably connected in the slide groove. When the hopper rotates, the slide groove drives the slide bar to slide, and the hopper door swings around the recessed portion to open or close the discharge port.
[0014] In some embodiments, the chute is a straight groove located off the rotation center of the hopper. When the hopper rotates, the chute drives the slide bar to slide along a straight line.
[0015] In some embodiments, the hopper body includes two hopper doors, and the base is provided with two sliding grooves;
[0016] The two chamber doors slide in a straight line within the two grooves and move closer to each other to close the discharge port; or, the two chamber doors slide in a straight line within the two grooves and move further apart to open the discharge port.
[0017] In some embodiments, the hopper body further includes an elastic element;
[0018] One end of the elastic element is connected to the chamber door, and the other end of the elastic element is connected to the chamber body. When the chamber door opens the discharge port, the elastic force of the elastic element increases, and the chamber door closes the discharge port under the action of the elastic force of the elastic element.
[0019] In some embodiments, the chamber body is further provided with a first connecting portion, and the grinding body is further provided with a second connecting portion;
[0020] When the hopper body rotates to the position where the hopper door opens the discharge port, the first connecting part connects with the second connecting part so that the hopper body and the grinding body maintain a relatively fixed position.
[0021] In some embodiments, the grinding mill further includes a positioning detection device;
[0022] The positioning detection device is located between the grinding body and the hopper body. When the hopper body rotates to the position where the hopper door opens the discharge port, the positioning detection device is triggered and sends a positioning signal.
[0023] In some embodiments, the positioning detection device includes a second protrusion, a push rod, and a micro switch;
[0024] The second protrusion is located on the side of the chamber facing the grinding body, the micro switch is located inside the grinding body, one end of the push rod is connected to the micro switch, and the other end of the push rod protrudes from the grinding body;
[0025] When the hopper body rotates to the position where the hopper door opens the discharge port, the second protrusion contacts the top rod and triggers the micro switch to send a positioning signal through the top rod.
[0026] According to the grinding machine in the above embodiment, when the hopper body is installed on the grinding body, the first limiting part can be connected to the second limiting part. When the hopper body is rotated, since the second limiting part can rotate relative to the first limiting part, and the first and second limiting parts are located at positions offset from the rotation center of the hopper body, the hopper door can swing around the second limiting part. Furthermore, since the hopper door is also slidably connected to the hopper body, the hopper door can slide relative to the hopper body while swinging. Thus, under the combined effect of swinging and sliding movement, the hopper door can open or close the discharge port of the hopper body. In this way, the grinding machine can open or close the discharge port by rotating the hopper body, eliminating the need for a dedicated switch inside the grinding machine to control the opening and closing of the bean hopper, thereby saving internal space and facilitating the miniaturization of the grinding machine. Attached Figure Description
[0027] Figure 1 This is a three-dimensional structural schematic diagram of the grinding machine in some embodiments of this application;
[0028] Figure 2 for Figure 1 Exploded view of the structure of a medium-sized grinding mill;
[0029] Figure 3 for Figure 2 A schematic diagram of the exploded structure of the main body of the hopper in the grinding mill;
[0030] Figure 4 for Figure 2 A half-sectional view of the main body of the hopper in the grinding mill;
[0031] Figure 5 for Figure 3 A top-view schematic diagram of the structure where one of the compartment doors moves on the base;
[0032] Figure 6 for Figure 3 A three-dimensional structural diagram of one of the warehouse doors;
[0033] Figure 7 for Figure 3 A three-dimensional structural diagram of the central base;
[0034] Figure 8 for Figure 5 A cross-sectional schematic diagram of the sliding connection between the compartment door and the base;
[0035] Figure 9 for Figure 2 A schematic diagram of the main structure of the central silo from below;
[0036] Figure 10 for Figure 2 A partially enlarged structural diagram of the grinding body;
[0037] Figure 11 for Figure 1 A schematic diagram of the positioning detection device in a grinding mill.
[0038] in:
[0039] 1-Main body of the hopper; 11-Hopper body; 111-Hopper body; 112-Base; 1121-Discharge port; 1122-Arc groove; 1123-Slide groove; 1124-First connecting part; 113-Hopper cover; 114-Inner cover; 12-Hopper door; 121-Second limiting part; 122-Slide bar; 13-Elastic element; 2-Grinding body; 20-Mounting port; 21-First limiting part; 22-Second connecting part; 31-Second protrusion; 32-Top rod; 33-Micro switch. Specific Implementation
[0040] The present application will be further described in detail below with reference to specific embodiments and accompanying drawings. Similar elements in different embodiments are referred to by associated similar element reference numerals. In the following embodiments, many details are described to facilitate a better understanding of the present application. However, those skilled in the art will readily recognize that some features may be omitted in different situations, or may be replaced by other elements, materials, or methods. In some cases, certain operations related to the present application are not shown or described in the specification. This is to avoid obscuring the core parts of the present application with excessive description. For those skilled in the art, detailed description of these related operations is not necessary; they can fully understand the related operations based on the description in the specification and general technical knowledge in the art.
[0041] Furthermore, the features, operations, or characteristics described in the specification can be combined in any suitable manner to form various embodiments, and the operational steps involved in each embodiment can also be rearranged or adjusted in a manner that is obvious to those skilled in the art. Therefore, the specification and drawings are only for clearly describing a particular embodiment and do not imply that they represent the necessary components and / or order.
[0042] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages).
[0043] This application provides a grinding machine, such as Figures 1 to 5 As shown, the grinding machine may include a hopper body 1 and a grinding body 2. The grinding body 2 is provided with a first limiting part 21. The hopper body 1 may include a hopper body 11 and a hopper door 12. The hopper body 11 is rotatably mounted on the grinding body 2 and is provided with a discharge port 1121. The hopper door 12 is slidably connected to the hopper body 11 and is provided with a second limiting part 121. The second limiting part 121 can be connected to the first limiting part 21 and can rotate relative to the first limiting part 21. The first limiting part 21 and the second limiting part 121 are located at a position offset from the rotation center of the hopper body 11. When the hopper body 11 rotates on the grinding body 2, the hopper door 12 slides on the hopper body 11 and swings around the second limiting part 121, so that the hopper door 12 moves to a position to open or close the discharge port 1121.
[0044] When the hopper body 1 is installed on the grinding body 2, the first limiting part 21 can be connected to the second limiting part 121. When the hopper body 11 is rotated, since the second limiting part 121 can rotate relative to the first limiting part 21, and the first limiting part 21 and the second limiting part 121 are located at a position offset from the rotation center of the hopper body 11, the hopper door 12 can swing around the second limiting part 121. Furthermore, since the hopper door 12 is also slidably connected to the hopper body 11, the hopper door 12 can slide relative to the hopper body 11 while swinging. Thus, under the combined effect of swinging and sliding, the hopper door 12 can open or close the discharge port 1121 of the hopper body 11. In this way, the grinder can open or close the discharge port 1121 by rotating the hopper body 1, eliminating the need for a dedicated switch inside the grinder to control the opening and closing of the bean hopper, thereby saving internal space and facilitating the miniaturization of the grinder.
[0045] In some embodiments, such as Figures 2 to 5As shown, the grinding body 2 has an installation port 20. The first limiting part 21 may include a first protrusion, and the second limiting part 121 may include a recess. The first protrusion may be disposed at the bottom of the installation port 20, and the first protrusion may protrude from the grinding body 2 toward the hopper body 1. The recess may be recessed from the hopper door 12 toward the direction away from the first protrusion. When the hopper body 11 is installed on the grinding body 2, the first protrusion may be inserted into the recess, and the recess may rotate relative to the first protrusion.
[0046] The first limiting part 21 and the second limiting part 121 are configured with a structure in which the protrusion and the recess interlock, facilitating user assembly of the grinder. When assembling the grinder, the user only needs to insert the hopper body 1 into the mounting port 20 and simultaneously insert the first protrusion into the recess to complete the assembly. When using the grinder, the user only needs to rotate the hopper body 1 on the grinding body 2 to open or close the hopper door 12 according to the desired bean feeding. The first protrusion can be a cylindrical or prismatic protrusion, and the recess can be a circular or prismatic groove; this application does not impose any special restrictions on the specific shapes of the first protrusion and the recess. Furthermore, the first limiting part 21 can also be configured as a recessed structure, and the second limiting part 121 can also be configured as a protruding structure; this application does not impose any special restrictions on the specific positions of the first protrusion and the recess.
[0047] In other embodiments, the first limiting part 21 and the second limiting part 121 can also be configured as a magnetic attraction structure. When the hopper body 1 is inserted into the mounting port 20, the first limiting part 21 and the second limiting part 121 can be connected by magnetic attraction, thereby allowing the hopper body 1 to be mounted on the grinding body 2. When the hopper body 11 is rotated, the mutually magnetically attracted first limiting part 21 and second limiting part 121 can rotate relative to each other, so that the hopper door 12 can still swing around the second limiting part 121 as the center, thereby realizing the function of opening or closing the hopper door 12. This application does not impose any special restrictions on the specific structural form of the first limiting part 21 and the second limiting part 121.
[0048] In some embodiments, such as Figures 3 to 6 As shown, the chamber body 11 may include a chamber body 111, a base 112 and a chamber cover 113; the chamber cover 113 and the base 112 are respectively connected to both ends of the chamber body 111, the chamber door 12 may be set on the side of the base 112 away from the grinding body 2, the base 112 may have an arc groove 1122, the discharge port 1121 is set on the base 112, the first protrusion passes through the arc groove 1122 and connects with the recess, and the arc groove 1122 moves when the chamber body 11 rotates.
[0049] When assembling the grinding machine, since the chamber door 12 is located on the side of the base 112 away from the grinding body 2, i.e., the chamber door 12 is located inside the base 112, the first protrusion can pass through the arc-shaped groove 1122 and connect with the recess. When the chamber body 11 is rotated, the arc-shaped groove 1122 can rotate with the chamber body 11 and restrict the rotation path of the chamber body 11. For example, the two ends of the arc-shaped groove 1122 can be set to abut against the first protrusion when the chamber door 12 is open and when the chamber door 12 is closed, respectively. Specifically, when the arc-shaped groove 1122 rotates to abut against the first protrusion at one end, the chamber door 12 is open; when the arc-shaped groove 1122 rotates to abut against the first protrusion at the other end, the chamber door 12 is closed. Thus, when the chamber body 11 rotates to the positions of the two ends of the arc-shaped groove 1122, the chamber door 12 is in a fully open or fully closed state.
[0050] In other embodiments, the door 12 can also be located on the side of the base 112 near the grinding body 2, that is, the door 12 can be located outside the base 112. When assembling the grinding machine, the first protrusion can be directly connected to the recess, thus eliminating the need to provide an arc-shaped groove 1122 on the base 112. When the door 12 is located outside the base 112, a sliding groove with a limiting slot can be provided on the base 112, allowing the door 12 to slide within the sliding groove with the limiting slot, thereby preventing the door 12 from detaching from the base 112. This application does not impose any special restrictions on the specific structure of the base 112.
[0051] Furthermore, the base 112 can be connected to the silo body 111 by means of screws, snap-fits, or plugs. When the silo body 111 rotates, it can drive the base 112 to rotate as well. The silo cover 113 can be placed on the silo body 111 to prevent dust from falling into the silo body 111 or material from leaking out of the silo body 111. An inner cover 114 can also be provided inside the silo body 111 to prevent ground soybean powder from jumping into the silo body 111 from the discharge port 1121. This application does not impose any special restrictions on the specific structure of the silo body 11.
[0052] In some embodiments, such as Figures 3 to 8 As shown, the base 112 may be provided with a sliding groove 1123, and the hopper door 12 may be provided with a sliding strip 122; the recessed part is located on the side of the sliding strip 122, and the sliding strip 122 is slidably connected in the sliding groove 1123. When the hopper body 11 rotates, the sliding groove 1123 drives the sliding strip 122 to slide, and the hopper door 12 swings around the recessed part so that the hopper door 12 opens or closes the discharge port 1121.
[0053] For example, such as Figure 5As shown, when the hopper body 11 rotates clockwise (Z direction in the figure), the hopper door 12, through the limiting effect of the sliding groove 1123 on the sliding strip 122, tends to open the discharge port 1121 (moving in the Y direction). Simultaneously, the arc-shaped groove 1122 rotates with the base 112, causing the hopper door 12 to swing outward (in the X direction) around the second limiting part 121. Under the combined effect of sliding and swinging, the hopper door 12 will move in the Y direction, thereby opening the discharge port 1121. When the hopper body 11 rotates in the opposite direction, the hopper door 12 will move in the opposite direction of the Y direction under the combined effect of sliding and swinging, thereby closing the discharge port 1121. Of course, the grinder can also be configured such that the hopper door 12 opens the discharge port 1121 when the hopper body 11 rotates counterclockwise, and closes the discharge port 1121 when the hopper body 11 rotates clockwise. This application does not impose any special restrictions on the direction of rotation of the bin body 11 when the bin door 12 opens or closes the discharge port 1121.
[0054] In other embodiments, the chute 1123 can also be provided on the door 12, and the slide bar 122 can also be provided on the base 112. This application does not impose any special restrictions on the specific positions of the chute 1123 and the slide bar 122. The width of the chute 1123 can be slightly larger than the width of the slide bar 122 to prevent the slide bar 122 from being blocked by the chute 1123 during the rotation of the silo body 11. The relative position between the recess and the slide bar 122 can be adjusted according to factors such as the size of the door 12, the length of the chute 1123, and the swing amplitude when the door 12 opens the discharge port 1121. This application does not impose any special restrictions on the specific structure of the base 112 and the door 12. In addition, a limiting guide rail can be provided at the top of the chute 1123 to limit the slide bar 122 to slide within the chute 1123, thereby preventing the slide bar 122 from detaching from the chute 1123.
[0055] In some embodiments, such as Figure 7 As shown, the shape of the chute 1123 can be set as a straight groove. The straight groove is set at a position away from the rotation center of the chamber 11. When the chamber 11 rotates, the chute 1123 can drive the slide bar 122 to slide along a straight line.
[0056] When the chute 1123 is a straight groove, the gate 12 can move along a straight line to open or close the discharge port 1121, thereby allowing the gate 12 to open or close the discharge port 1121 faster, and thus allowing the discharge port 1121 to discharge beans more quickly. In other embodiments, the shape of the chute 1123 can also be set as a curved groove, for example, the shape of the chute 1123 can be set as a semi-circular groove or an arc groove, thereby allowing the gate 12 to move along a curve to open or close the discharge port 1121. This application does not impose any special limitations on the specific shape of the chute 1123.
[0057] In some embodiments, such as Figures 3 to 9As shown, the hopper body 1 may include two hopper doors 12, and the base 112 may be provided with two sliding grooves 1123; the two hopper doors 12 slide along a straight line in the two sliding grooves 1123 and move closer to each other to close the discharge port 1121; or, the two hopper doors 12 slide along a straight line in the two sliding grooves 1123 and move away from each other to open the discharge port 1121.
[0058] For example, such as Figure 6 As shown, one hopper door 12 can be configured as a roughly semi-circular plate structure, and two hopper doors 12 can be joined to form a door panel structure for closing the discharge port 1121. The two hopper doors 12 and the two sliding grooves 1123 can be arranged symmetrically about the rotation center of the hopper body 11. Similarly, the recesses on the two hopper doors 12 and the two first limiting portions 21 on the grinding body 2 can also be arranged symmetrically about the rotation center of the hopper body 11. When the hopper body 11 rotates, the two hopper doors 12 can move away from each other to open the discharge port 1121, or the two hopper doors 12 can move closer to each other to close the discharge port 1121. In other embodiments, the hopper body 1 can also be provided with one hopper door 12 or three hopper doors 12, etc. This application does not impose any special limitation on the specific number of hopper doors 12.
[0059] In some embodiments, such as Figures 3 to 8 As shown, the silo body 1 may also include an elastic element 13; one end of the elastic element 13 is connected to the silo door 12, and the other end of the elastic element 13 is connected to the silo body 11. When the silo door 12 opens the discharge port 1121, the elastic force of the elastic element 13 increases, and the silo door 12 closes the discharge port 1121 under the action of the elastic force of the elastic element 13.
[0060] In this design, the elastic element 13 can be a spring. When the chamber body 11 is rotated to open the discharge port 1121, the spring is stretched, increasing its elastic force, which causes the elastic element 13 to tend to push the chamber door 12 back to its original position. When the chamber body 11 is rotated in the opposite direction to close the discharge port 1121, the chamber door 12 closes the discharge port 1121 under the elastic force of the elastic element 13. Therefore, when the chamber body 1 is removed from the grinding body 2, the chamber door 12 is always in the closed discharge port 1121 state, thus preventing the problem of bean leakage caused by the user forgetting to close the discharge port 1121. Furthermore, the automatic closing of the discharge port 1121 by the elastic force of the elastic element 13 also facilitates user operation. In other embodiments, the elastic element 13 can also be a torsion spring; this application does not impose any special restrictions on the specific structure of the elastic element 13.
[0061] In some embodiments, such as Figure 3 , Figure 7 , Figure 9 and Figure 10As shown, the hopper body 11 may also be provided with a first connecting part 1124, and the grinding body 2 may also be provided with a second connecting part 22; when the hopper body 1 rotates to the position where the hopper door 12 opens the discharge port 1121, the first connecting part 1124 may be connected to the second connecting part 22 so that the hopper body 1 and the grinding body 2 maintain a relatively fixed position.
[0062] For example, the first connecting part 1124 can be a protrusion on the outer wall of the base 112, and the second connecting part 22 can be a groove on the inner wall of the grinding body 2. When the hopper body 1 rotates to the position where the hopper door 12 opens the discharge port 1121, the protrusion can be engaged in the groove, thereby keeping the hopper door 12 open at the discharge port 1121 so that the hopper body 11 can smoothly discharge beans.
[0063] In other embodiments, the first connecting part 1124 may also be a limiting groove arranged circumferentially along the side wall of the base 112, and the second connecting part 22 may also be a limiting head arranged circumferentially along the side wall of the grinding body 2. When the hopper body 1 rotates to the position where the hopper door 12 opens the discharge port 1121, the limiting head can be engaged in the limiting groove circumferentially along the side wall of the base 112, thereby keeping the hopper door 12 in the state of opening the discharge port 1121. This application does not impose any special restrictions on the specific structure of the first connecting part 1124 and the second connecting part 22.
[0064] In some embodiments, such as Figures 9 to 11 As shown, the grinding mill may also include a positioning detection device; the positioning detection device is located between the grinding body 2 and the hopper body 1. When the hopper body 1 rotates to the position where the hopper door 12 opens the discharge port 1121, the positioning detection device is triggered and sends a positioning signal.
[0065] By installing a positioning detection device on the grinder, when the hopper body 1 rotates to the position where the hopper door 12 opens to the discharge port 1121, the positioning detection device can be triggered and send a positioning signal, thereby informing the user that the hopper door 12 has opened and grinding has begun. For example, the positioning detection device can be connected to a buzzer, which can provide a prompt to the user. Alternatively, the positioning detection device can also be connected to the grinder's circuit board, which can control the grinder to start grinding. This application does not impose any special restrictions on the specific method by which the positioning detection device sends a positioning signal after being triggered.
[0066] In some embodiments, such as Figures 9 to 11As shown, the positioning detection device may include a second protrusion 31, a push rod 32, and a micro switch 33. The second protrusion 31 may be disposed on the side of the hopper 11 facing the grinding body 2. The micro switch 33 may be disposed inside the grinding body 2. One end of the push rod 32 is connected to the micro switch 33, and the other end of the push rod 32 protrudes from the grinding body 2. When the hopper body 1 rotates to the position where the hopper door 12 opens the discharge port 1121, the second protrusion 31 contacts the push rod 32 and triggers the micro switch 33 to send a positioning signal through the push rod 32.
[0067] When the chamber 11 is inserted into the mounting port 20 of the grinding body 2, the first limiting part 21 is connected to the second limiting part 121. At this time, the second protrusion 31 is not in contact with the push rod 32, and the micro switch 33 is not triggered. When the chamber 11 rotates to the position where the chamber door 12 opens the discharge port 1121, the second protrusion 31 contacts the push rod 32 and presses the push rod 32 to trigger the micro switch 33, which sends a positioning signal. When the chamber 11 is rotated in the opposite direction, the second protrusion 31 separates from the push rod 32, the push rod 32 resets, and the micro switch 33 sends a positioning signal. In other embodiments, the positioning detection device can also be configured as an infrared probe, a grating sensor, or other electronic components. This application does not impose any special restrictions on the specific structure of the positioning detection device.
[0068] The above-described specific examples are for illustrative purposes only and are not intended to limit the scope of this invention. Those skilled in the art to which this invention pertains can make various simple deductions, modifications, or substitutions based on the concept of this invention.
Claims
1. A grinding machine, characterized in that, include: The grinding body is provided with a first limiting part; and, The hopper body includes a hopper body and a hopper door. The hopper body is rotatably mounted on the grinding body. The hopper body is provided with a discharge port. The hopper door is slidably connected to the hopper body. The hopper door is provided with a second limiting part. The second limiting part is used to connect with the first limiting part, and the second limiting part can rotate relative to the first limiting part. The first limiting part and the second limiting part are located at a position away from the rotation center of the chamber body. When the chamber body rotates on the grinding body, the chamber door slides on the chamber body and swings around the second limiting part so that the chamber door moves to the position of opening or closing the discharge port.
2. The grinding machine as described in claim 1, characterized in that, The grinding body has an installation port, the first limiting part includes a first protrusion, and the second limiting part includes a recess; The first protrusion is located at the bottom of the mounting opening, and the first protrusion protrudes from the grinding body toward the hopper body. The recessed portion is recessed from the hopper door toward the direction away from the first protrusion. When the hopper body is installed on the grinding body, the first protrusion is inserted into the recessed portion, and the recessed portion can rotate relative to the first protrusion.
3. The grinding machine as described in claim 2, characterized in that, The container body includes a main body, a base, and a cover; The chamber cover and the base are respectively connected to both ends of the chamber body. The chamber door is located on the side of the base away from the grinding body. The base has an arc-shaped groove. The discharge port is located on the base. The first protrusion passes through the arc-shaped groove and connects with the recess. When the chamber body rotates, it drives the arc-shaped groove to move.
4. The grinding machine as described in claim 3, characterized in that, The base is provided with a sliding groove, and the compartment door is provided with a sliding strip; The recessed portion is located on the side of the slide bar, and the slide bar is slidably connected in the slide groove. When the hopper rotates, the slide groove drives the slide bar to slide, and the hopper door swings around the recessed portion to open or close the discharge port.
5. The grinding machine as described in claim 4, characterized in that, The chute is a straight groove, and it is located at a position offset from the rotation center of the hopper. When the hopper rotates, the chute drives the slide bar to slide along a straight line.
6. The grinding machine as described in claim 5, characterized in that, The hopper body includes two hopper doors, and the base is provided with two sliding grooves; The two chamber doors slide in a straight line within the two grooves and move closer to each other to close the discharge port; or, the two chamber doors slide in a straight line within the two grooves and move further apart to open the discharge port.
7. The grinding machine as described in claim 1, characterized in that, The main body of the hopper also includes elastic components; One end of the elastic element is connected to the chamber door, and the other end of the elastic element is connected to the chamber body. When the chamber door opens the discharge port, the elastic force of the elastic element increases, and the chamber door closes the discharge port under the action of the elastic force of the elastic element.
8. The grinding mill according to any one of claims 1 to 7, characterized in that, The chamber body is also provided with a first connecting part, and the grinding body is also provided with a second connecting part; When the hopper body rotates to the position where the hopper door opens the discharge port, the first connecting part connects with the second connecting part so that the hopper body and the grinding body maintain a relatively fixed position.
9. The grinding machine as described in claim 8, characterized in that, The grinding machine also includes a positioning detection device; The positioning detection device is located between the grinding body and the hopper body. When the hopper body rotates to the position where the hopper door opens the discharge port, the positioning detection device is triggered and sends a positioning signal.
10. The grinding machine as described in claim 9, characterized in that, The positioning detection device includes a second protrusion, a push rod, and a micro switch; The second protrusion is located on the side of the chamber facing the grinding body, the micro switch is located inside the grinding body, one end of the push rod is connected to the micro switch, and the other end of the push rod protrudes from the grinding body; When the hopper body rotates to the position where the hopper door opens the discharge port, the second protrusion contacts the top rod and triggers the micro switch to send a positioning signal through the top rod.