CN211937152U

CN211937152U - Flour mill

Info

Publication number: CN211937152U
Application number: CN202020083886.1U
Authority: CN
Inventors: 蒋相德; 蒋连萍
Original assignee: Nanjing Naxi Nano Technology Co ltd
Current assignee: Nanjing Naxi Nano Technology Co ltd
Priority date: 2020-01-15
Filing date: 2020-01-15
Publication date: 2020-11-17
Anticipated expiration: 2030-01-15

Abstract

The utility model discloses a milling machine belongs to crushing apparatus technical field. Wherein, milling machine includes: bottom plate, crocus casing, crocus subassembly and crocus drive assembly. Wherein, be equipped with feed inlet and discharge gate on the crocus casing, the crocus subassembly includes first mill and second mill, and first mill is connected with crocus drive assembly, and the second mill can be for first mill horizontal migration, at the crocus in-process, improves the micronization machining precision of material granule through constantly reducing the clearance between two mills to improve the work efficiency of milling machine. Compared with the prior art, the utility model provides a milling machine can improve the work efficiency of milling machine when improving the machining precision of milling machine, has wide application prospect.

Description

Flour mill

Technical Field

The utility model belongs to the technical field of crushing apparatus, especially, milling machine.

Background

Grinding belongs to a precision processing technology, and raw materials can be processed to different precisions or particle sizes through grinding. The material is ground to obtain fine micropowder particles, and the size of the micropowder particles can be as small as below 50 microns, and the smallest micropowder particles can even reach 0.1 micron. Therefore, the method has extremely wide application in the chemical industry, the pharmaceutical industry and the like.

A conventional mill generally includes two grinding discs capable of rotating relatively, and the material particles are ground, impacted and sheared by the rotation of the grinding discs, so as to achieve micronization of the material particles. In order to improve the processing precision of material micronization, the existing flour mills mainly change the surface structure of the grinding disc or increase the grinding time, which causes the work efficiency of the flour mill to be reduced.

SUMMERY OF THE UTILITY MODEL

The utility model provides a flour mill to optimize the performance of current flour mill.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a mill, comprising: the grinding device comprises a bottom plate, a grinding shell arranged on the bottom plate, a grinding component arranged in the grinding shell and a grinding driving component for driving the grinding component to move; a feed inlet and a discharge outlet are formed in the milling shell, the milling shell is of a cylindrical structure, and the axis of the milling shell is horizontal; the milling assembly comprises a first milling disc and a second milling disc, wherein the first milling disc is rotationally connected with the milling shell, the second milling disc is connected with the milling shell in a sliding mode, and the second milling disc can horizontally move relative to the first milling disc along the axis of the second milling disc; the grinding powder driving assembly is arranged on the bottom plate and is in transmission connection with the first grinding disc and can drive the first grinding disc to rotate.

In a further embodiment, the pulverizer further comprises a sliding assembly and a sliding driving assembly for driving the sliding assembly to move; the sliding assembly comprises a sliding block and a sliding rail, and one end of the sliding block is fixedly connected with the center of the side face, far away from the first grinding disc, of the second grinding disc; the sliding rail is fixedly connected with the milling shell, and the length direction of the sliding rail is parallel to the axis direction of the milling shell; the utility model discloses a material particle micronization speed, including slider, slide driving assembly and crocus casing fixed connection, slide driving assembly is connected with the slider transmission, slide driving assembly can drive the slider and slide along the length direction of slide rail, and slide driving assembly drives the slider and slides the adjustment that realizes first mill and second mill interval, can improve material particle micronization speed fast through the clearance that reduces first mill and second mill, and then improves the work efficiency of milling machine.

In a further embodiment, the sliding driving assembly comprises a sliding driving motor, a driving gear fixedly connected with an output shaft of the sliding driving motor, a driven gear in meshing transmission with the driving gear, and a turntable coaxially connected with the driven gear, wherein a sliding groove is formed in the turntable, and the distance from one end of the sliding groove to the center of the turntable is smaller than the distance from the other end of the sliding groove to the center of the turntable; the slide rods are fixed on two sides of the slide block, the cantilever end of each slide rod is arranged in the corresponding slide groove, the slide driving motor is started to drive the corresponding rotary table to rotate, the slide grooves rotate along with the rotary table, the slide rods on two sides of the slide block move in the horizontal direction along with the rotation of the slide grooves, namely the slide grooves rotate to drive the slide rods to move horizontally, the slide rods further drive the slide block to slide along the guide rails, and the slide driving assembly is arranged to adjust the position of the slide block and further achieve the horizontal movement of the second grinding disc.

In a further embodiment, the sliding chute is in an involute shape, the sliding chute comprises a near end and a far end, the distance between the far end and the center of the rotating disc is larger than the distance between the near end and the center of the rotating disc, the sliding rod moves from the far end to the near end and from the near end to the far end along with the forward and backward rotation of the rotating disc, and when the sliding rod moves from the far end to the near end, the sliding block drives the second grinding disc to be far away from the first grinding disc; when the sliding rod moves from the near end to the far end, the sliding block drives the second grinding disc to be close to the first grinding disc, the sliding groove is designed into an involute shape, the far end of the sliding groove is farthest away from the center of the rotary disc, the near end of the sliding groove is closest to the center of the rotary disc, and therefore when the sliding rod slides directionally in the sliding groove, the sliding block can also slide directionally, and therefore the control of horizontal movement of the second grinding disc is guaranteed.

In a further embodiment, the number of the slide rails is 4, and 4 side edges of the slide block are matched with the slide rails, so that the slide block is prevented from being inclined.

In a further embodiment, a plurality of fan-shaped grinding plates are attached to the end face of the first grinding disc relative to the second grinding disc and the end face of the second grinding disc relative to the first grinding disc, a plurality of impact target plates for grinding materials are fixed on the grinding plates, when the grinding plates or the impact target plates on the grinding plates are damaged, the corresponding grinding plates are replaced, all the grinding plates do not need to be replaced, and convenience in disassembly and replacement cost reduction can be realized through the arrangement.

In a further embodiment, the crocus casing includes the main part and with main part articulated closing cap, the main part is the cylinder structure, the axis level of main part, the closing cap is circular structure, be equipped with the handle on the closing cap, be equipped with on the main part and be used for the closing cap to close the locking element with closing cap and main part locking, can be convenient for open the first mill and the second mill of closing cap in to the crocus casing through this setting and clear up and maintain.

Has the advantages that: the utility model provides a milling machine can pivoted first mill and can be for first mill horizontal migration's second mill through the design, at the crocus in-process, constantly reduces the micronization machining precision that the clearance between two mills improved the material granule to improve milling machine's work efficiency. Compared with the prior art, the utility model provides a milling machine can improve the work efficiency of milling machine when improving the machining precision of milling machine, has wide application prospect.

Drawings

Fig. 1 is a schematic structural diagram of the flour mill of the present invention.

Fig. 2 is a sectional view of the pulverizer of the present invention.

Fig. 3 is a schematic diagram of the connection between the second grinding disc and the sliding assembly and the sliding driving assembly of the flour mill of the present invention.

Fig. 4 is a schematic view of the sliding assembly and the sliding driving assembly of the pulverizer of the present invention.

Fig. 5 is a side view of the turntable of the flour mill of the present invention.

Fig. 6 is a side view of a second grinding disc of the mill of the invention.

Each of fig. 1 to 6 is labeled as: the grinding device comprises a base plate 10, a grinding shell 20, a main body part 201, a sealing cover 202, a feeding hole 21, a discharging hole 22, a protective cover 23, a handle 24, a locking element 25, a grinding assembly 30, a first grinding disc 31, a second grinding disc 32, a rotating shaft 33, a grinding disc 34, an impact target plate 35, a grinding driving assembly 40, a grinding driving motor 41, a first belt pulley 42, a second belt pulley 43, a transmission belt 44, a sliding assembly 50, a sliding block 51, a sliding rod 511, a sliding rail 52, a sliding driving assembly 60, a sliding driving motor 61, a driving gear 62, a rotating shaft 621, a driven gear 63, a rotating disc 64 and a sliding groove 641.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings and embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without any creative effort belong to the protection scope of the present invention.

Intensive research by researchers has found that a mill generally comprises two grinding discs which can rotate relatively, and micronization of material particles is realized by grinding the material particles through the relative rotation of the grinding discs. The existing flour mill mainly achieves the purpose of improving the micronization degree of material particles by changing the surface structure of a grinding disc or increasing the grinding time of the flour mill, and the increase of the grinding time can improve the micronization degree of the material particles, but can cause the reduction of the working efficiency of the flour mill. Therefore, the utility model provides a but milling machine design relative movement's mill rotates the distance between the in-process adjustment mill at the mill, increases the collision frequency of material granule and mill to improve the micronization degree of material granule, still can not reduce milling machine's work efficiency simultaneously.

As shown in fig. 1 and 2, the utility model provides a flour mill, include: a base plate 10, a mill housing 20, a mill assembly 30 and a mill drive assembly 40.

Specifically, referring to fig. 1 to 4, the base plate 10 is fixed to the floor, the milling housing 20 is fixedly provided to the base plate 10, the milling housing 20 has a cylindrical structure, and the axis of the milling housing 20 is horizontal. Be equipped with feed inlet 21 and discharge gate 22 on the crocus casing 20, wherein feed inlet 21 fixed welding is at the top of crocus casing 20, and discharge gate 22 fixed welding is at the oblique side of crocus casing 20, and discharge gate 22 spiral duct connects. Milling subassembly 30 includes first mill 31 and second mill 32, and wherein first mill 31 rotates with milling casing 20 to be connected, and second mill 32 and milling casing 20 sliding connection, the second mill 32 center of the quotation of second mill 32 is kept away from to first mill 31 are fixed with pivot 33, and pivot 33 runs through and inserts in a side terminal surface of milling casing 20 and extend milling casing 20 and be connected with milling drive assembly 40. Crocus drive assembly 40 is located on bottom plate 10, crocus drive assembly 40 includes crocus driving motor 41, crocus driving motor 41 is fixed on bottom plate 10, crocus driving motor 41's output shaft coaxial fixed has a plurality of first belt pulleys 42, the one end that first mill 31 was kept away from to pivot 33 is fixed with a plurality of second belt pulleys 43, first belt pulley 42 equals with second belt pulley 43's quantity, be connected through drive belt 44 transmission between first belt pulley 42 and the second belt pulley 43. The second grinding disc 32 is slidably connected to the end surface of the other side of the grinding housing 20 so that the second grinding disc 32 can move horizontally along its own axis with respect to the first grinding disc 31. Further, the mill includes a sliding assembly 50 and a sliding drive assembly 60 for moving the sliding assembly 50. Specifically, sliding assembly 50 includes a rectangular slider 51 and a sliding rail 52, and one end of slider 51 is fixedly connected to the center of the side surface of second grinding disc 32 far away from first grinding disc 31. The terminal surface fixed connection of keeping away from first mill 31 of slide rail 52 and crocus casing 20, and the length direction of slide rail 52 is parallel with the axis direction of crocus casing 20, it has a square through hole to open on the terminal surface of first mill 31 of keeping away from of crocus casing 20, the quantity of slide rail 52 is 4, these 4 slide rails 52 respectively with 4 edge fixed connection of this square through hole, and slider 51 level is inserted in this through hole, 4 edges and the slide rail 52 sliding connection of slider 51, 4 slide rails 52 restrict slider 51 from 4 directions, the condition that slider 51 produced slope or upset has been avoided. The end face fixed connection that first mill 31 was kept away from to slip drive assembly 60 and crocus casing 20, and slip drive assembly 60 is connected with slider 51 transmission, drive slider 51 and slide along the length direction of slide rail 52, in order to realize the adjustment of interval between second mill 32 and the first mill 31, when interval between second mill 32 and the first mill 31 reduces, can increase the collision frequency of material granule and mill, thereby realize the micronization speed of material granule fast, thereby improve the work efficiency of milling machine.

Referring to fig. 1 to 5, the slide driving assembly 60 includes a slide driving motor 61, a driving gear 62, a driven gear 63, and a turntable 64. Wherein, two lassos have been cup jointed to the outer wall of slip driving motor 61, the lasso is fixed on the terminal surface outer wall that crocus casing 20 kept away from first mill 31, driving gear 62 cup joints the tip of being fixed in the output shaft of slip driving motor 61, driven gear 63 and the meshing transmission of driving gear 62, the axis of driven gear 63 is parallel with the axis of driving gear 62, carousel 64 and the coaxial fixed connection of driven gear 63, it has a spout 641 to open in the quotation of carousel 64, the distance of the one end of spout 641 to the carousel 64 center is less than the distance of the other end of spout 641 to carousel 64 center. The quantity of driving gear 62, driven gear 63 and carousel 64 in this embodiment is 2, wherein, connect through axis of rotation 621 between 2 driving gear 62, these 2 driving gear 62 are located the both sides of slider 51 respectively, and on the same reason, 2 driven gear 63 also is located the both sides of slider 51, two carousels 64 also are located the both sides of slider 51, and fixedly connected with protection casing 23 on the terminal surface outer wall of first mill 31 is kept away from to crocus casing 20, driving gear 62, driven gear 63 and carousel 64 are located this protection casing 23, driving gear 62 and driven gear 63 rotate to be connected on the both sides inner wall of this protection casing 23. The slide rod 511 is fixedly connected to both sides of the slide block 51, and the cantilever end of the slide rod 511 is disposed in the slide groove 641 of the turntable 64. When the sliding driving motor 61 is started to drive the rotating disc 64 to rotate, the sliding groove 641 rotates along with the rotating disc 64, and the sliding rods 511 at two sides of the sliding block 51 generate horizontal displacement along with the rotation of the sliding groove 641, so as to drive the sliding block 51 to slide along the guide rail, thereby achieving the purpose of adjusting the distance between the second grinding disc 32 and the first grinding disc 31.

In a further embodiment, referring to fig. 5, the shape of the sliding groove 641 is an involute shape, and the sliding groove 641 includes a proximal end and a distal end, i.e. two ends of the sliding groove 641 are respectively the proximal end and the distal end. The distance between the distal end of the sliding groove 641 and the center of the rotating disc 64 is greater than the distance between the proximal end of the sliding groove 641 and the center of the rotating disc 64, and it should be noted that, because the shape of the sliding groove 641 is an involute shape, the distance from the distal end of the sliding groove 641 to the center of the rotating disc 64 is the maximum distance from any position on the sliding groove 641 to the center of the rotating disc 64, and the distance from the proximal end of the sliding groove 641 to the center of the rotating disc 64 is the minimum distance from any position on the sliding groove 641 to the center. As the rotating disc 64 rotates, the sliding rod 511 slides in the sliding groove 641, and the sliding process can be divided into two states, namely, there are two states of the sliding rod 511 moving from the far end to the near end and moving from the near end to the far end, when the sliding rod 511 moves from the far end to the near end, the distance from the sliding rod 511 to the center of the rotating disc 64 becomes smaller, so that the sliding block 51 slides to the side close to the rotating disc 64, namely, the sliding block 51 drives the second grinding disc 32 to move away from the first grinding disc 31; as the slide bar 511 moves from the proximal end to the distal end, the distance from the slide bar 511 to the center of the turn plate 64 increases, thereby causing the slide block 51 to slide to the side away from the turn plate 64, i.e., the slide block 51 brings the second grinding disk 32 closer to the first grinding disk 31. The slot 641 is designed to be involute in shape, so as to ensure that the sliding block 51 can also slide directionally during the directional rotation of the turntable 64, thereby ensuring accurate control of the horizontal movement of the second grinding disc 32.

During the micronization process of the material particles by the pulverizer, the material can continuously collide with the first grinding disc 31 and the second grinding disc 32, and meanwhile, due to the filling of the material particles, the disc surfaces of the first grinding disc 31 and the second grinding disc 32 generate extrusion force, which can cause the disc surfaces of the grinding discs to be damaged. Therefore, in a further embodiment, referring to fig. 6, a plurality of grinding plates 34 are attached to the end surface of the first grinding disc 31 opposite to the second grinding disc 32 and the end surface of the second grinding disc 32 opposite to the first grinding disc 31, the grinding plates 34 are fan-shaped and completely attached to the disc surfaces of the first grinding disc 31 and the second grinding disc 32, and the grinding plates 34 and the first grinding disc 31 and the second grinding disc 32 can be fixed by countersunk screws. Meanwhile, a plurality of impact target plates are fixed on the grinding disc, and the impact target plates 35 are designed into arc shapes or curved surface shapes, so that the contact area between material particles and the impact target plates 35 in the working process of the pulverizer is increased, and the working efficiency of the pulverizer is improved. When the grinding plates 34 and the impact target plates 35 on the grinding plates 34 are seriously worn or damaged, only the corresponding grinding discs need to be replaced, and all the grinding plates 34 do not need to be replaced, so that the grinding mill can be conveniently detached and replaced when damaged, and the replacement cost can be reduced.

When needs carry out spare part to the milling machine and change and maintain, need dismantle the crocus casing 20 of milling machine, it is very inconvenient. Thus, in a further embodiment, the milling housing 20 comprises a body 201 and a lid 202. Specifically, the main body 201 is a cylindrical structure, and the axis of the main body 201 is horizontal; the cover 202 is of a circular structure, and the cover 202 and the body 201 are connected in a hinged manner. When parts need to be replaced or the interior of the pulverizer needs to be cleaned and maintained, the sealing cover 202 is only required to be opened. The cover 202 is further provided with a handle 24 for facilitating opening of the cover 202, and the main body portion 201 is further provided with a locking element 25 for locking the cover 202 and the main body portion 201 when the cover 202 is closed, such a locking element 25 is common, and is not described herein, and the locking element 25 can achieve a locking function. Since the milling housing 20 is formed by the main body 201 and the cover 202 which can be opened, the first grinding disc 31 and the main body 201 are coaxially and rotatably connected, the second grinding disc 32 and the cover 202 are slidably connected, and the sliding driving assembly 60 and the sliding assembly 50 are disposed on the cover 202, in the manner described in detail above.

The working principle is as follows: the grinding powder driving motor 41 rotates, the first belt pulley 42 on the output shaft of the grinding powder driving motor 41 drives the second belt pulley 43 to rotate through the transmission belt 44, so that the rotating shaft 33 rotates, and the rotating shaft 33 rotates to drive the first grinding disc 31 to rotate. When material is added into the grinding shell 20 from the feed opening 21, the first grinding disc 31 rotates relative to the second grinding disc 32, and the material is continuously impacted and squeezed by the first grinding disc 31 and the second grinding disc 32 under the rotation of the first grinding disc 31 to be crushed into fine particles. The sliding driving motor 61 is started to drive the driven gear 63 to rotate through the driving gear 62, the driven gear 63 drives the rotary table 64 to rotate, the sliding groove 641 on the second rotary table 64 also rotates, the sliding rod 511 slides from the near end to the far end in the sliding groove 641 and drives the sliding block 51 to slide towards the direction close to the first grinding disc 31, so that the gap between the second grinding disc 32 and the first grinding disc 31 is reduced, the frequency of impact between material particles and the first grinding disc 31 and the second grinding disc 32 is increased, the material particles are further extruded simultaneously, the processing precision of micronization of the material particles is improved, and the working efficiency of the pulverizer is improved. The discharge port 22 is communicated with an external air suction pipe, and micro powder particles are formed after the material particles are processed and are sucked away and collected by high-speed airflow through the discharge port 22. Compare with current milling machine, the utility model provides a milling machine can improve crocus efficiency when improving the micronization machining precision of material, has wide application prospect.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A mill, characterized in that it comprises: the grinding device comprises a bottom plate, a grinding shell arranged on the bottom plate, a grinding component arranged in the grinding shell and a grinding driving component for driving the grinding component to move; a feed inlet and a discharge outlet are formed in the milling shell, the milling shell is of a cylindrical structure, and the axis of the milling shell is horizontal; the milling assembly comprises a first milling disc and a second milling disc, wherein the first milling disc is rotationally connected with the milling shell, the second milling disc is connected with the milling shell in a sliding mode, and the second milling disc can horizontally move relative to the first milling disc along the axis of the second milling disc; the grinding powder driving assembly is arranged on the bottom plate and is in transmission connection with the first grinding disc and can drive the first grinding disc to rotate.

2. A mill according to claim 1, further comprising a slide assembly and a slide drive assembly for moving the slide assembly; the sliding assembly comprises a sliding block and a sliding rail, and one end of the sliding block is fixedly connected with the center of the side face, far away from the first grinding disc, of the second grinding disc; the sliding rail is fixedly connected with the milling shell, and the length direction of the sliding rail is parallel to the axis direction of the milling shell; the sliding driving assembly is fixedly connected with the milling shell, the sliding driving assembly is connected with the sliding block in a transmission mode, and the sliding driving assembly can drive the sliding block to slide along the length direction of the sliding rail.

3. A pulverizer as claimed in claim 2, wherein the sliding drive assembly comprises a sliding drive motor, a driving gear fixedly connected to an output shaft of the sliding drive motor, a driven gear in meshing transmission with the driving gear, and a turntable coaxially connected to the driven gear, wherein the turntable is provided with a chute, and a distance from one end of the chute to a center of the turntable is smaller than a distance from the other end of the chute to the center of the turntable; and sliding rods are fixed on two sides of the sliding block, the cantilever end of each sliding rod is arranged in the sliding groove, the sliding driving motor is started to drive the rotating disc to rotate, and the sliding grooves rotate to drive the sliding rods to horizontally move.

4. A mill according to claim 3, characterized in that the chute has an involute shape, said chute comprising a proximal end and a distal end, said distal end being spaced further from the center of the rotatable disc than the proximal end, said slide rod being movable from the distal end to the proximal end and from the proximal end to the distal end in response to forward and reverse rotation of the rotatable disc, said slide rod moving from the distal end to the proximal end, said slide block driving the second grinding disc away from the first grinding disc; when the slide rod moves from the near end to the far end, the slide block drives the second grinding disc to be close to the first grinding disc.

5. A mill according to claim 4, characterized in that the number of slide rails is 4.

6. A mill according to any of claims 1-5, characterized in that fan-shaped refiner plates are attached to the end surfaces of the first refiner disc opposite the second refiner disc and to the end surfaces of the second refiner disc opposite the first refiner disc, and that a number of impact target plates for refining the material are fixed to the refiner plates.

7. A mill according to claim 1, characterized in that the milling housing comprises a main part and a cover hinged thereto, the main part being of cylindrical configuration, the main part having a horizontal axis, the cover being of circular configuration, the cover being provided with a handle, the main part being provided with a locking element for locking the cover to the main part for closing the cover.