WO2020177300A1

WO2020177300A1 - Electric powder grinding device having replaceable material cylinder and powder grinding method thereof

Info

Publication number: WO2020177300A1
Application number: PCT/CN2019/107333
Authority: WO
Inventors: 刘艾利克思; 刘红金
Original assignee: 深圳市饮之源科技有限公司
Priority date: 2019-03-04
Filing date: 2019-09-23
Publication date: 2020-09-10
Also published as: CN109692732B; CN109692732A

Abstract

An electric powder grinding device having a replaceable material cylinder and a powder grinding method thereof. The powder grinding device comprises a power source (50), a driving machine having a reversing and loosening function, and a material cylinder assembly. The power source (50) is connected to the driving machine; the material cylinder assembly comprises a material cylinder body (20), a grinding sleeve (26), a grinding head (27), and a fixed base (29); the material cylinder body (20) is fixedly connected to the grinding head (27); the driving machine is provided with an output shaft; the output shaft is connected to the material cylinder body (20) by means of a connecting structure; the grinding sleeve (26) is connected to the fixed base(29); the driving machine comprises a housing; an inserting slot is formed on the inner side wall of the housing; a convex column (294) is provided on the fixed base (29) and is inserted into the inserting slot; the grinding head (27) is embedded in the grinding sleeve (26). When an output current of the driving machine is greater than a set value, the driving machine drives the grinding head to rotate reversely; when the output current of the driving machine is not greater than the set value, the driving machine drives the grinding head to rotate forwards so as to realize the reversing and loosening function of the driving machine. Different grinding sleeves and grinding heads are used for grinding a variety of materials, double-direction rotating is available, and the damage rate of the powder grinding device is reduced.

Description

Electric pulverizer with replaceable barrel and its pulverizing method

This application is based on the Chinese patent application with application number 201910161121.7 and filing date on March 4, 2019, and claims its priority. The entire content of this application is hereby incorporated into this application as a whole.

Technical field

This application relates to a pulverizer, and more specifically to an electric pulverizer with a replaceable barrel and a grinding method thereof.

Background technique

The pulverizers and refiners used in real life, whether steel mill or sand mill, make the material become finer and finer through the grinding pressure between the moving and static grinding plates, so the production efficiency of the machine is fast or slow. The fineness of the grinding and pressing of the material depends on the degree of adhesion between the movable grinding disc and the static grinding disc.

The grinding head and the driving structure of the existing pulverizer are non-detachable connection. When grinding various powders, the second material can only be added to the grinding sleeve after the current operation is completed, and the same grinding head is used. When grinding powder, it is easy to mix air or other things into it, which causes the taste of the ground powder to become poor. And because the two materials use the same grinding sleeve and the same grinding head, the powder ground from the second material is affected. The influence of the previous material leads to the problem of poor taste; the current mill can only rotate in one direction. This method will cause serious damage to the mill when it encounters objects with higher hardness.

Therefore, it is necessary to design a new pulverizer to realize the grinding of a variety of materials, use different grinding sleeves and grinding heads, and can rotate in both directions to reduce the damage rate of the pulverizer.

Application content

The purpose of this application is to overcome the defects of the prior art and provide an electric pulverizer with a replaceable barrel and a grinding method thereof.

In order to achieve the above-mentioned purpose, this application adopts the following technical solution: an electric pulverizer with a replaceable barrel, including a power source, a driving machine with reversing and releasing function, and a barrel assembly, the power source is connected to the driving machine, The barrel assembly includes a barrel body, a grinding sleeve, a grinding head, and a fixed base. The barrel body is fixedly connected to the grinding head. The driving machine is provided with an output shaft. The output shaft is connected to the grinding head through a connection structure. The barrel body is connected, the grinding sleeve is connected to the fixed base, the driving machine includes a housing, the inner side wall of the housing is provided with a slot, and the fixed base is provided with a convex post, the The convex column is inserted in the slot, the grinding head is embedded in the grinding sleeve, the grinding head and the grinding sleeve are enclosed to form a silo for materials to be placed inside, and the driving machine is driven by the connecting structure The barrel body rotates, and the barrel body rotates to drive the grinding head to rotate. The grinding sleeve remains relatively static through the fixed base so that the material is ground into powder in the grinding sleeve; when the output current of the driver is greater than the set value, it will drive The machine drives the grinding head to reverse. When the output current of the driving machine is not greater than the set value, the driving machine drives the grinding head to rotate forward to realize the reversing and releasing function of the driving machine.

Its further technical solution is: the driving machine includes a transmission, and the output shaft is provided on the transmission.

The further technical solution is: a connecting bracket is arranged in the barrel body, and the connecting bracket is connected with the grinding head through a grinding head rotating shaft.

The further technical solution is: the lower end of the barrel body is connected with a connecting seat, the connecting seat is provided with a first through hole, the grinding head is embedded in the first through hole, and the upper end of the grinding sleeve is embedded In the first through hole, the lower end of the connecting seat is connected with the fixed base, the fixed base is provided with a first through groove, and first clamping blocks are provided on both sides of the first through groove, A gap is provided on the outer periphery of the grinding sleeve, and the first block is embedded in the gap.

The further technical solution is: the connecting bracket is provided with a second through groove, the connecting structure includes a door lock switch and a connecting assembly, the door lock switch is located in the second through groove, and the connecting bracket is provided There is a groove, the groove is located on the outer circumference of the second through groove, and the connecting component is inserted in the groove.

Its further technical solution is: the connecting assembly includes a first connecting piece and a second connecting piece, the first connecting piece is connected with the output shaft of the transmission, and the second connecting piece is connected with the first connecting piece , And the lower end of the first connecting piece is provided with a reset block, the reset block is provided with a reset groove, the second connecting piece is provided with a second through hole and a connecting post, the reset block passes through the In the second through hole, the door lock switch is embedded in the reset groove, and the connecting post is clamped in the groove.

Its further technical solution is: the connecting structure includes a connecting column and a door lock, the connecting column is arranged at the upper end of the barrel body, the door lock is arranged at the end of the output shaft, and the door lock Connect with the connecting cylinder.

Its further technical solution is: the driving machine includes a control component, the control component includes a collection unit, a control chip U4 and a switching unit, the collection unit is used to collect the current signal output by the power source and combine the current Signal input control chip U4; the control chip U4 is used to output a control signal according to the current signal to drive the switching unit to work, and the switching unit switches the direction of rotation of the power source to switch the direction of movement of the mill; The switching unit includes protection switches QM1, QM2, QM3, QM4 connected with the power source.

Its further technical solution is: the driving machine further includes a power source and a switch, the switch is connected to the control chip U4, the power source is connected to the power source, the control assembly further includes a power management unit, the power source The management unit is used to drive the power management unit to work or stop working by the control chip U4 when the switch is operated, so that the power supply supplies power to the power source or stops power supply.

The application also provides a grinding method of an electric pulverizer with a replaceable barrel, including:

Grinding step: the driving machine drives the barrel body to rotate through the connection structure, and the rotation of the barrel body will drive the relative movement between the grinding head and the grinding sleeve, and the material is ground into powder between the grinding head and the grinding sleeve;

Collect the current signal output by the power source, and input the current signal into the control chip U4; the control chip U4 outputs a control signal according to the current signal, drives the switching unit to work, and the switching unit switches the direction of rotation of the power source to switch The direction of relative movement between the grinding head and the grinding sleeve;

Wherein, when grinding the second material, the barrel assembly is separated from the driving machine, replaced with another barrel assembly, and returned to the grinding step.

Compared with the prior art, the present application has the following beneficial effects: the present application drives the barrel body to rotate through the driving machine and the connecting structure, the barrel body drives the grinding head to rotate, and the grinding head and the grinding sleeve move relative to each other. The grinding sleeves are ground and pressed into powder. The adjustment structure is used to adjust the gap between the grinding head and the grinding sleeve to adjust the particle size. When grinding the second material, the barrel assembly is separated from the driving machine and replaced with Another barrel assembly, the two materials do not affect the taste of each other, can ensure the original flavor of the material, and when encountering harder impurities, the rotation direction of the grinding head can be switched, that is, the barrel assembly can rotate in both directions to reduce grinding The damage rate of the powder machine.

The application will be further described below in conjunction with the drawings and specific embodiments.

Description of the drawings

In order to explain the technical solutions of the embodiments of the present application more clearly, the following will briefly introduce the drawings needed in the description of the embodiments. Obviously, the drawings in the following description are some embodiments of the present application. Ordinary technicians can obtain other drawings based on these drawings without creative work.

Figure 1 is a three-dimensional schematic diagram of an electric pulverizer with a replaceable barrel provided by a specific embodiment of the application;

2 is a schematic diagram of a cut-away structure of an electric pulverizer with a replaceable barrel provided by a specific embodiment of the application (excluding the housing, switch, and touch switch column);

3 is a schematic diagram of a partial explosion structure of an electric pulverizer with a replaceable barrel provided by a specific embodiment of the application;

4 is a schematic diagram of an exploded structure of a barrel assembly provided by a specific embodiment of the application;

FIG. 5 is a schematic diagram of a three-dimensional structure of a connecting bracket provided by a specific embodiment of the application;

Fig. 6 is a schematic diagram of a three-dimensional structure of a grinding head provided by a specific embodiment of the application;

FIG. 7 is a schematic diagram of a three-dimensional structure of a grinding sleeve provided by a specific embodiment of the application;

FIG. 8 is a schematic diagram of a three-dimensional structure of a connecting seat provided by a specific embodiment of the application;

9 is a schematic diagram of a three-dimensional structure of a fixed base provided by a specific embodiment of the application;

10 is a schematic diagram of a three-dimensional structure of a door lock switch provided by a specific embodiment of the application;

11 is a schematic diagram of an exploded structure of a control structure provided by a specific embodiment of the application;

FIG. 12 is a schematic circuit diagram of a main control chip U4 provided by a specific embodiment of the application;

FIG. 13 is a circuit schematic diagram of a switching unit provided by a specific embodiment of the application;

FIG. 14 is a schematic circuit diagram of a power management unit and a charging management unit provided by a specific embodiment of the application.

detailed description

The technical solutions in the embodiments of the present application will be described clearly and completely in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of them. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of this application.

It should be understood that when used in this specification and the appended claims, the terms "including" and "including" indicate the existence of the described features, wholes, steps, operations, elements and/or components, but do not exclude one or The existence or addition of multiple other features, wholes, steps, operations, elements, components, and/or collections thereof.

It should also be understood that the terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit the application. As used in the description of this application and the appended claims, unless the context clearly indicates other circumstances, the singular forms "a", "an" and "the" are intended to include plural forms.

It should be further understood that the term "and/or" used in the specification and appended claims of this application refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations .

As shown in the specific embodiments shown in Figures 1-14, the electric pulverizer with a replaceable barrel provided in this embodiment can be used indoors or outdoors. When grinding various materials, different grinding sleeves 26 and grinding heads are used. 27. It is not easy to be mixed with other things when feeding, to ensure the original flavor of the material, and it can be rotated in both directions when encountering materials with greater hardness to reduce the damage rate of the mill.

Please refer to Figures 1 to 3, the electric pulverizer with a replaceable barrel includes a power source 50, a driving machine with reversing and releasing function, and a barrel assembly. The power source 50 is connected to the driving machine. The barrel assembly includes a barrel The main body 20, the grinding sleeve 26, the grinding head 27 and the fixed base 29, the barrel body 20 and the grinding head 27 are fixedly connected, the driving machine is provided with an output shaft, the output shaft is connected with the barrel body 20 through the connection structure, and the grinding sleeve 26 is fixed to The base 29 is connected, the driving machine includes a casing, the inner side wall of the casing is provided with a slot, the fixed base 29 is provided with a convex post 294, the convex post 294 is inserted in the slot, and the grinding head 26 is embedded in the grinding sleeve In 27, the grinding head 26 and the grinding sleeve 27 are enclosed to form a silo in which materials are placed. The driving machine drives the barrel body 20 to rotate through the connecting structure. The barrel body 20 rotates to drive the grinding head 26 to rotate, and the grinding sleeve 27 The fixed base 29 is kept in a relatively static state so that the material is ground into powder in the grinding sleeve 27; when the output current of the driving machine is greater than the set value, the driving machine drives the grinding head 26 to reverse, and when the output current of the driving machine is When it is not greater than the set value, the driving machine drives the grinding head 26 to rotate forward, so as to realize the reversing and releasing function of the driving machine.

In one embodiment, the above-mentioned driving machine includes a control component, the control component includes a collection unit, a control chip U4, and a switching unit. The collection unit is used to collect the current signal output by the power source and combine the current The signal is input to the control chip U4; the control chip U4 is used to output a control signal according to the current signal to drive the switching unit to work, and the switching unit switches the rotation direction of the power source to switch the movement direction of the mill.

Among them, when grinding the second material, the barrel assembly is separated from the connection structure, replaced with another barrel assembly, and returned to the above-mentioned grinding operation.

The barrel assembly is connected with the connecting structure to make the driving machine, control assembly and the connecting structure into an independent control structure. The barrel assembly can be equipped with different grinding heads 27 and grinding sleeves 26 according to different substances, as a separate structure , Easy to disassemble and assemble.

Furthermore, the above-mentioned driving machine includes a transmission, and the above-mentioned output shaft is provided on the transmission, and the transmission is detachably connected with the barrel body 20 through a connection structure.

In one embodiment, referring to FIG. 4, the above-mentioned barrel body 20 is provided with a connecting bracket, and the connecting bracket is connected with the grinding head 27 through the grinding head rotating shaft 23, and a groove 213 is provided on the connecting bracket. The driving machine is used to drive the connection structure to rotate, the connection structure drives the connection support to rotate, and the connection support drives the grinding head 27 to rotate through the grinding head rotating shaft 23 to perform automatic grinding operations.

In one embodiment, referring to FIGS. 3 and 4, a second through slot 212 is provided in the connecting bracket, and the connection structure includes a door lock switch 90 and a connecting component. The door lock switch 90 is located in the second through slot 212, and the groove 213 is located on the outer periphery of the second through groove 212, and the connecting component is inserted in the groove 213.

The above-mentioned connecting assembly includes a first connecting piece 81 and a second connecting piece 80, the first connecting piece 81 is connected with the output shaft of the transmission, the second connecting piece 80 is connected with the first connecting piece 81, and the lower end of the first connecting piece 81 A reset block 811 is provided, a reset groove is provided in the reset block 811, a second through hole and a connecting post 801 are provided on the second connecting member 80, the reset block 811 passes through the second through hole, and the door lock switch 90 is embedded in the reset groove Inside, the connecting post 801 is locked in the groove 213.

The door lock switch 90 is used to connect the control structure and the barrel assembly to realize that the control structure drives the barrel assembly to perform grinding operations.

Specifically, referring to FIG. 5, the above-mentioned connecting bracket includes a first connecting bracket 21 and a second connecting bracket 22. The barrel body 20 is provided with a mounting hole, the mounting hole is provided with a clamp ring 201, and the first connecting bracket The upper end of 21 is provided with a snap ring, which is connected with the snap ring 201, the above-mentioned groove 213 is provided on the first connecting frame 21, the second through groove 212 penetrates the first connecting frame 21, and the first connecting frame 21 and The second connecting frame 22 is connected, and the lower end of the second connecting frame 22 extends downwards with an extension post 223. The extension post 223 is provided with a rotating shaft slot. The grinding head rotating shaft 23 is embedded in the rotating shaft slot to achieve The driving machine drives the first connecting frame 21 to rotate, the first connecting frame 21 drives the second connecting frame 22 to rotate, and the second connecting frame 22 rotates to drive the grinding head rotating shaft 23 to rotate, which in turn drives the grinding head 27 to rotate for automatic grinding. Powder operation, compact structure and stable transmission process.

In addition, specifically. The upper end of the first connecting frame 21 is also provided with a guide groove which is arranged adjacent to the groove. When assembling the first connecting piece 81 and the control structure, the first connecting piece 81 and the control structure are strongly pressed to make the first connecting piece 81 fit well with the connecting structure and guide The groove can better drive the grinding head 27 to work, so that the barrel body 20 can only rotate, but cannot move up and down, so that when the barrel body 20 rotates clockwise, the grinding head 27 also rotates clockwise.

In addition, the lower end of the first connecting frame 21 is also provided with a plug post 214 and a hook 211, and the second connection frame 22 is provided with a socket 221 and a hook groove 222. The plug 214 is inserted into the socket 221 and the hook 211 is embedded in the hook groove 222 so as to realize the connection between the first connecting frame 21 and the second connecting frame 22.

In one embodiment, please refer to FIG. 4, the lower end of the grinding head rotating shaft 23 is connected with an adjusting structure for adjusting the gap between the grinding head 27 and the grinding sleeve 26, and the adjusting structure includes a sleeve on the grinding head rotating shaft 23 The adjusting spring 24 and the adjuster 28 connected to the rotating shaft 23 of the grinding head are located between the grinding head 27 and the connecting bracket, and the adjuster 28 is located below the grinding head 27. Specifically, the adjusting spring 24 is located between the grinding head 27 and the second connecting frame 22.

A thread is provided on the rotating shaft 23 of the grinding head to facilitate the fixation of the adjuster 28 after rotation.

In one embodiment, please refer to FIG. 6, the grinding head 27 includes a truncated cone body 271, and convex teeth 272 are provided on the truncated cone body 271.

Rotate the adjuster 28 to make it move upwards. The adjuster 28 compresses the adjusting spring 24 to move the grinding head 27 upwards. The gap between the grinding head 27 and the grinding sleeve 26 becomes smaller, and the ground powder becomes smaller; when the adjuster 28 is rotated, By moving it downward, the pressing force of the adjusting rod on the adjusting spring 24 is reduced, and the grinding head 27 is moved downward, and the gap between the grinding head 27 and the grinding sleeve 26 becomes larger, so that the ground powder becomes larger.

In an embodiment, please refer to Figures 8 and 9, the lower end of the barrel body 20 is connected with a connecting seat 25, the connecting seat 25 is provided with a first through hole 253, the grinding head 27 is embedded in the first through hole 253, and the grinding The upper end of the sleeve 26 is embedded in the first through hole 253, the lower end of the connecting seat 25 is connected with a fixed base 29, the fixed base 29 is provided with a first through slot, and first locking blocks 291 are provided on both sides of the first through slot. A notch 261 is provided on the outer periphery of the grinding sleeve 26, and the first block 291 is embedded in the notch 261.

In addition, the grinding sleeve 26 is provided with a grinding groove, and the grinding head 27 is embedded in the grinding groove of the grinding sleeve 26.

Specifically, a second clamping block is provided on the inner side wall of the barrel body 20, and a connecting groove 251 is provided on the connecting seat 25. The second clamping block is clamped in the connecting groove 251 to connect the barrel body 20 and For the connection of the seat 25, the grinding sleeve 26, the grinding head 27 and the barrel body 20 form an independent structure by means of the connecting seat 25.

In addition, in order to facilitate the assembly of the barrel body 20 and the connecting seat 25, the barrel body 20 is provided with a limit bar, and the connecting seat 25 is provided with a limit slot 254, and the limit bar is embedded in the limit slot 254 for lifting To the role of positioning.

In one embodiment, referring to FIG. 9, the outer circumference of the connecting seat 25 is provided with an annular groove 252, and the fixing base 29 is provided with a protrusion 292 embedded in the annular groove 252, thereby realizing the connecting seat 25 Connected to the fixed base 29, by means of the notch 261 and the first block 291, the housing of the driver is connected to the connecting base 25, the connecting base 25 is connected to the fixed base 29, and the grinding sleeve 26 is connected to the fixed base to achieve grinding The sleeve 26 is in a relatively static state, and the grinding head 27 rotates clockwise to work, the convex teeth 272 of the grinding head 27 grind the material into powder of the same size as the gap between the grinding head 27 and the grinding sleeve 26, and the powder passes from the gap. It falls off, so as to achieve the purpose of grinding. In addition, the connecting seat 25 is enclosed with the fixed base 29 and the grinding sleeve 26 to form a sealed space, which is not easy to be mixed with other things and ensures the original flavor of the material.

In addition, in other embodiments, the barrel body 20 can also be directly connected to the grinding sleeve 26, and the grinding head 27 and the fixed base 29 are fixed together. At this time, the grinding head 27 is in a relatively static state, and the grinding sleeve 26 is in a relatively rotating state. .

Specifically, a limit ring 293 is provided in the above-mentioned first through groove, and the limit ring 293 is located below the first block 291 to play a role in positioning the installation of the grinding sleeve 26.

In one embodiment, referring to FIG. 11, the upper end of the first connecting member 81 is provided with gear teeth, the transmission includes a gear set 60, and the gear teeth of the gear set 60 mesh with the gear teeth of the first connecting member 81.

In one embodiment, referring to FIG. 11, the control structure includes a housing, the control assembly and the transmission are placed in the housing, and a switch 40 is provided on the upper end of the housing.

Specifically, the housing includes an outer housing 11 and an inner housing 10. The inner housing 10 is located in the outer housing 11 and connected to the outer housing 11, and a slot is provided on the inner side wall of the inner housing 10. , The upper end of the inner housing 10 and the power source 30 of the driver are connected by fasteners, so that the installation and fixation of the power source 30 also makes the barrel body 20 and the control structure more stable connection, in addition to the use of the door lock switch 90 to lock In addition, the connection between the protruding post 294 and the slot is also used to stabilize the connection between the barrel body 20 and the control structure in two aspects, so that the control structure can drive the barrel body 20 to rotate, thereby realizing stable grinding.

Specifically, the inner housing 10 includes an upper inner housing 102 and a lower inner housing 101, the upper inner housing 102 is connected to the upper end of the lower inner housing 101, and the upper inner housing 102 is connected to the power source 30, and the lower inner housing The lower end of the body 101 is provided with a slot, and the above-mentioned power source 30 is located in the upper inner housing 102, and the gear set 60 and the connecting structure are placed in the lower inner housing 101.

In one embodiment, referring to FIG. 11, a tact switch 70 and a tact switch pole 71 are connected outside the inner housing 10, and the tact switch 70 and the door lock switch 90 are respectively connected to the main control chip U4. When the connection structure and the material When the barrel body 20 is connected, the touch switch column 71 abuts against the upper end surface of the barrel body 20, and the touch switch column 71 abuts against the movable switch 70, so that the door lock switch 90 works and connects the barrel body 20 with the connection structure.

The tact switch column 71 is provided with a tact protruding strip 711 on one side close to the tact switch 70. When the connecting structure is not inserted in the groove 213 and is not connected to the barrel body 20, the tact protruding strip 711 abuts against the tact switch. 70. When the connecting component is inserted in the groove 213, the lower end of the touch switch post 71 abuts against the upper end surface of the barrel body 20, the touch protruding bar 711 does not touch the touch switch 70, and the main control chip U4 obtains the change signal of the touch switch 70 After that, the door lock switch 90 is driven to work.

Please refer to Figure 10, the door lock switch 90 includes two inverted sections 91. When the door lock switch 90 is pressed in the center, the left and right inverted sections 91 will be fastened toward the center. Press again in the center to make the left and right inverted sections. The buckle section 91 will open outwards, thereby opening the door lock switch

In this embodiment, the aforementioned power source 50 is but not limited to a motor.

When the connecting structure is connected to the barrel body 20, the touch switch column 71 abuts against the upper end surface of the barrel body 20, and the touch switch column 71 abuts against the movable switch 70, so that the door lock switch 90 works and connects the barrel body 20 to the connecting structure. Connection; When the switch 40 is pressed, the switch 40 is turned on, and the main control chip U4 drives the power source 30 to supply power to the power source 50. The power source 50 works, driving the gear set 60 to rotate the grinding head rotating shaft 23 to drive the grinding head 27 to rotate, and the gear set 60 drives the connection structure to rotate, the connection structure drives the connection bracket to rotate, the rotation of the connection bracket drives the grinding head rotating shaft 23 to rotate, and the grinding head rotating shaft 23 drives the grinding head 27 to rotate; while the fixing seat is fixed and the first block 291 is stationary , The first block 291 acts on the grinding sleeve 26 to make the grinding sleeve 26 stand still, thereby achieving the relative movement of the grinding sleeve 26 and the grinding head 27. The grinding head 27 rotates clockwise, and the convex teeth 272 of the grinding head 27 remove the material The powder is ground into the same size as the gap between the grinding head 27 and the grinding sleeve 26, and the powder falls from the gap, so as to achieve the purpose of grinding.

When grinding powder, if it is necessary to adjust the size of the powder, when the adjuster 28 is rotated upward along the axis of the grinding head rotating shaft 23, the adjuster 28 pushes the grinding head 27 upward, and the grinding head 27 is compressed and adjusted. With the spring 24, the gap between the grinding head 27 and the grinding sleeve 26 becomes smaller, so that the powder becomes smaller; when the adjuster 28 is rotated downward along the axis of the grinding head rotating shaft 23, the elastic force of the adjusting spring 24 pushes the grinding head 27 downward , The gap between the grinding head 27 and the grinding sleeve 26 becomes larger, and the powder becomes larger.

When the second material needs to be ground, press the switch 40 to stop the driver and the power supply 30, and press down the entire housing, so that the touch protruding bar 711 abuts the touch switch 70, so that the door lock switch 90 stops working To replace the barrel assembly.

In one embodiment, an indicator light 12 is provided on the housing. The indicator light 12 is connected to the main control chip U4. When the switch 40 is activated, the indicator light 12 is also turned on to generate light for lighting at night. It is convenient to know the grinding situation.

In one embodiment, referring to FIG. 13, the above-mentioned switching unit includes protection switches QM1, QM2, QM3, and QM4 connected to the power source 50.

When there are hard impurities between the grinding sleeve 26 and the grinding head 27, the current signal input by the acquisition unit to the main control chip U4 shows that the load current of the power source 50 is too large. At this time, the G1P terminal pin changes from a high potential to a low potential. The 7th pin of the chip U4 enters the main control chip U4, the main control chip U4 will give a control signal and output from the 8th pin, and after passing through the filter resistor R22, the control protection switch QM2 is turned on; thus the power supply 30 passes through the protection switch The S1, S2, and S3 terminals of QM2 are connected to the other terminals of the protection switch QM2, so as to switch the connection terminal of the power source 50 with the positive pole of the power supply 30; at this time, the G2N terminal changes from a high potential to a low potential. The 17th pin of the control chip U4 enters the main control chip U4, the main control chip U4 will give a control signal and output from the 17th pin, and then control the protection switch QM3 from the filter resistor R20 to turn on, so that the power supply 30 passes through the protection switch QM3 The S1, S2, and S3 terminal pins of the protection switch QM2 are connected to the other terminal pins of the protection switch QM2, so as to realize the switching of the connection terminal pin of the power source 50 with the negative pole of the power source 30; and then realize the steering switch of the power source 50, the grinding head 27 and the grinding sleeve 26 Relative movement will be carried out in the opposite direction, and then harder impurities will be squeezed out, avoiding harder impurities from damaging the grinding head 27 and the grinding sleeve 26, and also preventing harder impurities from damaging the pulverizer.

Further, referring to FIG. 14, the driving machine further includes a power source 30, which is connected to the power source 50, and the control component further includes a power management unit, a power management unit for driving the control chip U4 when the switch 40 is operated The power management unit works or stops working, so that the power supply 30 supplies power to the power source 50 or stops power supply.

The power management unit includes a power supply 30 management chip U3. When the power supply 30 is fully charged, the positive pole of the power supply 30 passes through

pins

1 and 2 of the protection switch QM4 and then to the other terminals of the protection switch QM4, and reaches the positive pole of the power source 50; The negative pole of 30 passes through the filter resistor R25 to the S1, S2, and S3 terminals of the protection switch QM1, to the other terminals of the protection switch QM1, and then to the negative pole of the power source 50, so that the power source 50 works normally and starts grinding.

In one embodiment, referring to FIG. 14, the above-mentioned control assembly further includes a charging management unit, the charging management unit includes a charging chip U1, an anti-reverse diode D1 is connected between the charging chip U1 and the external power source 30, and the charging chip U1 The thermistor PTC is connected to the power supply 30.

When the external power supply 30 such as USB 5V voltage is plugged in, the DC+ of the external power supply 30 passes through the anti-reverse diode D1 to the S1 pin of the charging chip U1, and is output from the 8th pin of the charging chip U1, and then input power after the thermistor PTC The positive pole of 30, the negative pole of the external power supply 30DC- to the negative pole of the power supply 30, thereby charging the power supply 30.

In this embodiment, the aforementioned power source 30 may be, but is not limited to, a direct current dry battery, a rechargeable nickel battery, or a rechargeable lithium battery, or a suitable alternating current rectified into direct current.

A connecting column is arranged in the reset groove, and when the barrel body 20 is connected with the driving machine, two undercut sections hook the connecting column.

When you press the center of the door lock switch, the left and right undercut sections 91 will fasten toward the center, and press again in the center, and the left and right undercut sections 91 will open outwards, thereby opening the door lock switch 90. When the connecting cylinder is inserted into the door lock switch and hits the center of the door lock switch 90, the left and right inverted sections 91 of the door lock switch 90 will fasten the connecting cylinder. When the transmission of the driving machine rotates, the barrel body 20 is also driven to rotate.

In other embodiments, the above-mentioned connecting structure includes a connecting column and a door lock switch 90, the connecting column is arranged at the upper end of the barrel body 20, and the door lock switch 90 is arranged at the end of the output shaft, The door lock switch 90 is connected to the connecting cylinder. When the barrel body 20 is combined with the door lock switch in the driver, a plurality of fixed protrusions are provided on the fixed base 29 to be inserted into the fixed grooves on the inner wall of the housing of the driver to form a relatively stationary grinding sleeve and the driver. State, when the connecting cylinder of the barrel body 20 is inserted into the door lock switch 90, it hits the center of the door lock switch 90 for the first time, and a pair of inverted sections 91 of the door lock switch 90 buckle the connecting cylinder of the barrel body 20 In this way, the barrel body and the driving machine are integrated to complete a complete mill. When the connecting cylinder of the barrel body 20 pushes forward in the door lock switch 90 and hits the center of the door lock switch 90 for the second time, the pair of inverted sections 91 of the door lock switch 90 will open, and the barrel body 90 can Separate from the driving machine, and the driving machine can select other barrel components containing different abrasives and perform the same steps to form another mill; the conversion of the barrel assembly 20 requires only one action, which is simple, convenient and fast.

The above-mentioned electric pulverizer with a replaceable barrel drives the barrel body 20 to rotate through the driving machine and the connecting structure, and the barrel body 20 drives the grinding head 27 to rotate. The grinding head 27 and the grinding sleeve 26 move relative to each other. The material is grinding The gap between the head 27 and the grinding sleeve 26 is ground and pressed into powder. The adjustment structure is used to adjust the gap between the grinding head 27 and the grinding sleeve 26 to adjust the particle size. When the second material is ground, the barrel assembly and The driving machine is separated and replaced with another barrel assembly. The two materials do not affect the taste of each other, which can ensure the original flavor of the material. When encountering harder impurities, the rotation direction of the grinding head 27 can be switched, that is, the barrel The components rotate in both directions to reduce the damage rate of the mill.

In an embodiment, there is also provided a grinding method of an electric pulverizer with a replaceable barrel, including:

Grinding step: the driving machine drives the barrel body 20 to rotate through the connecting structure, the barrel body 20 drives the grinding head 27 or the grinding sleeve 26 to rotate, the grinding head 27 and the grinding sleeve 26 move relative to each other, and the material is in the grinding head 27 and the grinding sleeve. 26 is ground into powder;

Collect the current signal output by the power source 50 and input the current signal into the control chip U4; the control chip U4 outputs a control signal according to the current signal, drives the switching unit to work, and the switching unit switches the direction of rotation of the power source 50, To switch the direction of relative movement between the grinding head 27 and the grinding sleeve 26;

It should be noted that those skilled in the art can clearly understand that the specific implementation process of the grinding method of the electric pulverizer with a replaceable barrel can refer to the foregoing embodiment of the electric pulverizer with a replaceable barrel The corresponding description of, for the convenience and conciseness of description, will not be repeated here.

The above only uses examples to further illustrate the technical content of this application for easier understanding of readers, but it does not mean that the implementation of this application is limited to this. Any technical extension or re-creation made according to this application shall be subject to this application. protection of. The scope of protection of this application is subject to the claims.

Summary of the invention

technical problem

The solution to the problem

The beneficial effects of the invention

Claims

The electric pulverizer with a replaceable barrel is characterized in that it comprises a power source, a driving machine with a reversing and releasing function, and a barrel assembly, the power source is connected to the driving machine, and the barrel assembly includes a barrel The main body, the grinding sleeve, the grinding head and the fixed base, the barrel body is fixedly connected with the grinding head, the driving machine is provided with an output shaft, and the output shaft is connected with the barrel body through a connection structure. The grinding sleeve is connected with the fixed base, the driving machine includes a casing, the inner side wall of the casing is provided with a slot, the fixed base is provided with a convex post, and the convex post is inserted in the slot , The grinding head is embedded in the grinding sleeve, the grinding head and the grinding sleeve are enclosed to form a silo for materials to be placed inside, and the driving machine drives the barrel body to rotate through the connecting structure, and the barrel body The rotation drives the grinding head to rotate, and the grinding sleeve is kept relatively static through the fixed base so that the material is ground into powder in the grinding sleeve; when the output current of the driving machine is greater than the set value, the driving machine drives the grinding head to reverse. When the output current of the driving machine is not greater than the set value, the driving machine drives the grinding head to rotate forward, so as to realize the reversing and releasing function of the driving machine.
The electric pulverizer with a replaceable barrel according to claim 1, wherein the driving machine includes a transmission, and the output shaft is provided on the transmission.
The electric pulverizer with a replaceable barrel according to claim 2, wherein a connecting bracket is provided in the barrel body, and the connecting bracket is connected with the grinding head through a grinding head rotating shaft.
The electric pulverizer with a replaceable barrel according to claim 3, wherein the lower end of the barrel body is connected with a connecting seat, the connecting seat is provided with a first through hole, and the grinding head is embedded in In the first through hole, the upper end of the grinding sleeve is embedded in the first through hole, the lower end of the connecting seat is connected to the fixed base, and the fixed base is provided with a first through groove, so Two sides of the first through groove are provided with first locking blocks, the outer periphery of the grinding sleeve is provided with a notch, and the first locking block is embedded in the notch.
The electric pulverizer with a replaceable barrel according to claim 3, wherein the connecting bracket is provided with a second through slot, and the connecting structure includes a door lock switch and a connecting component, and the door lock switch Located in the second through groove, the connecting bracket is provided with a groove, the groove is located on the outer periphery of the second through groove, and the connecting component is inserted in the groove.
The electric pulverizer with a replaceable barrel according to claim 5, wherein the connecting assembly includes a first connecting piece and a second connecting piece, and the first connecting piece is connected with the output shaft of the transmission , The second connecting piece is connected with the first connecting piece, and a reset block is arranged at the lower end of the first connecting piece, a reset groove is arranged in the reset block, and a first connecting piece is arranged on the second connecting piece. Two through holes and a connecting post, the reset block passes through the second through hole, the door lock switch is embedded in the reset groove, and the connecting post is locked in the groove.
The electric pulverizer with a replaceable barrel according to claim 1, wherein the connecting structure includes a connecting column and a door lock switch, the connecting column is provided at the upper end of the barrel body, and The door lock switch is arranged at the end of the output shaft, and the door lock switch is connected with the connecting cylinder.
The electric pulverizer with a replaceable barrel according to any one of claims 1 to 7, wherein the driving machine includes a control assembly, and the control assembly includes a collection unit, a control chip U4, and a switching unit, so The collection unit is used to collect the current signal output by the power source and input the current signal to the control chip U4; the control chip U4 is used to output a control signal according to the current signal, and drive the switching unit to work, and The switching unit switches the rotation direction of the power source to switch the movement direction of the mill; the switching unit includes protection switches QM1, QM2, QM3, QM4 connected to the power source.
The electric pulverizer with a replaceable barrel according to claim 8, wherein the driving machine further comprises a power source and a switch, the switch is connected to the control chip U4, and the power source is connected to the power source. When the switch is operated, the control chip U4 drives the power management unit to work or stop working, so that the power source supplies power to the power source or stops power supply.
The grinding method of an electric pulverizer with a replaceable barrel is characterized in that it comprises:

Grinding step: the driving machine drives the barrel body to rotate through the connection structure, and the rotation of the barrel body will drive the relative movement between the grinding head and the grinding sleeve, and the material is ground into powder between the grinding head and the grinding sleeve;

Collect the current signal output by the power source and input the current signal into the control chip U4; the control chip U4 outputs a control signal according to the current signal, drives the switching unit to work, and the switching unit switches the direction of rotation of the power source to switch The direction of relative movement between the grinding head and the grinding sleeve;

Wherein, when grinding the second material, the barrel assembly is separated from the driving machine, replaced with another barrel assembly, and returned to the grinding step.