CN110420695B

CN110420695B - Flour mill

Info

Publication number: CN110420695B
Application number: CN201910722810.0A
Authority: CN
Inventors: 陈祥龙; 吕志杰; 张雨
Original assignee: Individual
Current assignee: Leling Yunda Food Co ltd
Priority date: 2019-08-06
Filing date: 2019-08-06
Publication date: 2020-11-17
Anticipated expiration: 2039-08-06
Also published as: CN110420695A

Abstract

The invention discloses a flour mill which comprises a millstone shell, a first millstone and a second millstone, wherein a feed inlet and a discharge outlet are formed in the millstone shell, the first millstone and the second millstone are arranged in the millstone shell, and a driving device is arranged on one side outside the millstone shell and is used for driving the first millstone and the second millstone to rotate reversely; the advantage is that the arrangement space is saved.

Description

Flour mill

Technical Field

The invention relates to a milling device, in particular to a mill for micronizing solid raw materials based on the principle of the mill.

Background

Grinding belongs to a precision processing technology, is widely applied in many technical fields such as chemical industry, food processing, building and the like, has the performances of fineness, randomness, pertinence and the like, and can enable raw materials to be processed to different precisions or particle sizes through grinding. Micronization is a highly efficient grinding type that produces a fine powder, which is an aggregate of fine particles that can be as small as 0.1 μm, typically 5-50 μm, from relatively coarse particle sizes of the raw material particles to be ground by fine grinding. In general, active substances and excipients are manufactured using micronization processes in the pharmaceutical, cosmetic and chemical industries (e.g. fillers, pigments) and the like, and micronization of raw materials can be achieved by prolonged grinding in different kinds of classifying mills, such as ball mills, rod mills, hammer mills or vibrating mills.

The invention discloses a Chinese invention utility model patent 'a flour mill' with the prior art as patent No. ZL201520556246.7 (CN 204816676U). The flour mill comprises a base, a mill shell, a feeding hole, a discharging hole and two driving motors, wherein the mill shell, the feeding hole, the discharging hole and the two driving motors are fixedly arranged on the base, the feeding hole is arranged on one side of the mill shell, the discharging hole is arranged on a shell in the circumferential direction of the mill shell, two mills are arranged in the mill shell, and the two mills are respectively driven by respective driving shafts.

It follows that the two grinding discs of the mill need to be driven using two drive motors, whereby both sides of the grinding disc housing are occupied by the drive motors, resulting in no space for placing any other devices.

Disclosure of Invention

The invention aims to provide a flour mill capable of saving arrangement space.

The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a flour mill, includes mill shell, first mill and second mill, be provided with feed inlet and discharge gate on the mill shell, first mill with the second mill set up in the mill shell, the outer one side of mill shell is provided with drive arrangement, drive arrangement is used for ordering about first mill with second mill reverse rotation.

Preferably, the driving means includes a driving motor, a first gear, a second gear and a third gear, a first central shaft is arranged on the first grinding disc, one end of the first central shaft is fixedly connected with the first grinding disc, a first through hole is arranged in the first grinding disc and the first central shaft, a second central shaft is arranged on the second grinding disc, one end of the second central shaft is fixedly connected with the second grinding disc, the second central shaft penetrates through the first through hole, the other end of the first central shaft is provided with a fourth gear, the other end of the second central shaft is provided with a fifth gear, the first gear and the second gear are respectively and fixedly arranged on a driving shaft of the driving motor, the first gear is in gear transmission with the fourth gear through the third gear, and the second gear is in meshed connection with the fifth gear.

Preferably, the pulverizer further comprises a switching device for switching the first grinding disc and the second grinding disc to rotate in the same direction or in opposite directions.

Preferably, the switching device includes an air cylinder, the first central shaft includes a connecting rod and an adjusting rod spaced at a certain distance, one end of the connecting rod is fixedly connected to the first grinding disc, the other end of the connecting rod is provided with a first clamping groove, a first elastic member is filled in the first clamping groove, one end of the adjusting rod is provided with a first clamping block partially inserted into the first clamping groove, and the other end of the adjusting rod is fixedly connected to the fourth gear; the cross-section of second center pin is the polygon setting, the center of fifth gear seted up with the second through-hole of second center pin adaptation, the fifth gear with second center pin sliding connection, be provided with the second fixture block on the lateral wall of fifth gear, set up the confession on the lateral wall of fourth gear the second draw-in groove of second fixture block joint, second draw-in groove intussuseption is filled with the second elastic component, the piston rod butt of cylinder is in on another lateral wall of fifth gear. The cylinder acts on the fourth gear through the fifth gear, so that the fourth gear is separated from the third gear, and the first central shaft and the second central shaft are integrated and are driven by the second gear to rotate in the same direction.

Preferably, the first elastic member is a first compression spring, and the second elastic member is a second compression spring.

Preferably, the width of the second gear is greater than the width of the fifth gear.

Preferably, a high-pressure gas removing device is arranged on the other side outside the grinding disc shell and is used for removing accumulated materials on the first grinding disc and the second grinding disc.

Preferably, the high-pressure gas removing device comprises a high-pressure gas conveying pipe, a high-pressure gas straight spraying pipe and a high-pressure gas inclined spraying pipe, the high-pressure gas conveying pipe is connected with a gas pump, the gas pump is arranged in a placing area on the other side of the grinding disc shell, the high-pressure gas straight spraying pipe and the high-pressure gas inclined spraying pipe are inserted into the discharging hole, and the high-pressure gas is output to remove accumulated materials in the grinding disc shell.

Preferably, the high-pressure gas removing device is provided with a third clamping groove, and the high-pressure gas removing device is directly fixed on the outer wall of the discharge hole through the third clamping groove.

Compared with the prior art, the invention has the advantages that:

1. according to the invention, the driving device is arranged on one side of the grinding disc shell, and the driving device can simultaneously drive the first grinding disc and the second grinding disc to rotate reversely, so that two driving motors are not needed, the other side of the grinding disc shell is vacant, other devices can be placed in the vacant position, and the arrangement space is saved;

2. according to the invention, through arranging the switching device, the first grinding disc and the second grinding disc rotate in the same direction or in opposite directions, the grinding effect of materials is improved, and the application range is wider.

Drawings

FIG. 1 is a first schematic structural view of a pulverizer of the present invention;

FIG. 2 is a schematic structural view of a pulverizer of the present invention;

FIG. 3 is a first schematic cross-sectional view of a pulverizer of the present invention;

FIG. 4 is an enlarged schematic view at A in FIG. 3;

FIG. 5 is a schematic sectional view of a second embodiment of the pulverizer of the present invention;

FIG. 6 is an enlarged schematic view at B of FIG. 5;

FIG. 7 is a schematic structural view of a high-pressure gas removing apparatus according to the present invention.

In the figure: 1. a millstone housing; 11. a feed inlet; 12. a discharge port; 2. a first abrasive disc; 21. a first central shaft; 211. a connecting rod; 2111. a first card slot; 2112. a first elastic member; 212. adjusting a rod; 2121. a first clamping block; 22. a fourth gear; 221. a second card slot; 222. a second elastic member; 3. a second grinding disc; 31. a second central shaft; 32. a fifth gear; 321. a second fixture block; 4. a drive device; 41. a drive motor; 42. a first gear; 43. a second gear; 44. a third gear; 51. a base; 52. a support frame; 53. a mounting seat; 6. a switching device; 61. a cylinder; 62. a fixed seat; 7. a high pressure gas removal device; 71. a high-pressure gas delivery pipe; 72. a high-pressure gas straight nozzle; 73. a high-pressure gas inclined jet pipe; 74. and a third card slot.

Detailed Description

The following detailed description of embodiments of the invention refers to the accompanying drawings.

The first embodiment is as follows: as shown in the figure, the flour mill comprises a mill disc shell 1, a first mill disc 2 and a second mill disc 3, wherein a feed inlet 11 and a discharge outlet 12 are formed in the mill disc shell 1, the first mill disc 2 and the second mill disc 3 are arranged in the mill disc shell 1, a driving device 4 is arranged on one side outside the mill disc shell 1, and the driving device 4 is used for driving the first mill disc 2 and the second mill disc 3 to rotate reversely.

In this embodiment, the driving device 4 includes a driving motor 41, a first gear 42, a second gear 43 and a third gear 44, a first central shaft 21 is disposed on the first grinding disc 2, one end of the first central shaft 21 is fixedly connected to the first grinding disc 2, first through holes are disposed in the first grinding disc 2 and the first central shaft 21, a second central shaft 31 is disposed on the second grinding disc 3, one end of the second central shaft 31 is fixedly connected to the second grinding disc 3, the second central shaft 31 penetrates the first through hole, a fourth gear 22 is disposed at the other end of the first central shaft 21, a fifth gear 32 is disposed at the other end of the second central shaft 31, the first gear 42 and the second gear 43 are respectively fixedly disposed on a driving shaft of the driving motor 41, the first gear 42 and the fourth gear 22 are respectively connected to the third gear 44 in a meshing manner, and the second gear 43 is connected to the fifth gear 32 in a meshing manner.

In this embodiment, the bottom of the pulverizer is provided with a base 51, the base 51 is provided with a support frame 52 and a mounting seat 53 of the driving motor 41, the bottom of the support frame 52 is fixedly connected with the base 51, and the top of the support frame 52 is coupled with the third gear 44.

Example two: the rest of the embodiments are the same as the first embodiment, except that the mill further comprises a switching device 6, which switching device 6 is used to switch the first grinding disc 2 and the second grinding disc 3 to rotate in the same direction or in opposite directions.

In this embodiment, the switching device 6 includes the cylinder 61, the first central shaft 21 includes a connecting rod 211 and an adjusting rod 212 spaced at a certain distance, one end of the connecting rod 211 is fixedly connected to the first grinding disc 2, the other end of the connecting rod 211 is provided with a first clamping groove 2111, the first clamping groove 2111 is filled with a first elastic member 2112, one end of the adjusting rod 212 is provided with a first clamping block 2121 partially inserted into the first clamping groove 2111, and the other end of the adjusting rod 212 is fixedly connected to the fourth gear 22; the cross section of the second central shaft 31 is polygonal, a second through hole adapted to the second central shaft 31 is formed in the center of the fifth gear 32, the fifth gear 32 is slidably connected to the second central shaft 31, a second latch 321 is disposed on one side wall of the fifth gear 32, a second latch groove 221 for latching the second latch 321 is formed in a side wall of the fourth gear 22, the second latch 321 and the second latch groove 221 are polygonal, the second latch groove 221 is filled with a second elastic member 222, a piston rod of the cylinder 61 abuts against the other side wall of the fifth gear 32, and when the second latch 321 is latched to the second latch groove 221, the first central shaft 21 is linked with the second central shaft 31.

In this embodiment, the switching device 6 further includes a fixing seat 62, the fixing seat 62 is installed on the base 51, and the cylinder 61 is installed on the fixing seat 62.

In this embodiment, the first elastic member 2112 is a first compression spring, and the second elastic member 222 is a second compression spring.

In this embodiment, the width of the second gear 43 is greater than that of the fifth gear 32, when the cylinder 61 pushes the fifth gear 32 to move towards the fourth gear 22, the second latch 321 enters the second slot 221, at this time, the second compression spring is compressed, meanwhile, the fourth gear 22 and the adjustment rod 212 move towards the link 211, the first latch 2121 slides towards the bottom of the first slot 2111, at this time, the first compression spring is compressed, during this movement, the fifth gear 32 can always keep sufficient engagement with the second gear 43, and the fourth gear 22 disengages from the third gear 44.

Example three: the rest parts are the same as the first embodiment, and the difference is that the high-pressure gas removing device 7 comprises a high-pressure gas conveying pipe 71, a high-pressure gas straight spraying pipe 72 and a high-pressure gas inclined spraying pipe 73, the high-pressure gas conveying pipe 71 is connected with a gas pump, the gas pump is arranged in a placing area on the other side of the grinding disc shell 1, and the high-pressure gas straight spraying pipe 72 and the high-pressure gas inclined spraying pipe 73 are inserted into the discharge hole 12 to output high-pressure gas to remove accumulated materials in the grinding disc shell 1.

The high-pressure gas cleaning device 7 is connected with a gas pump through a high-pressure gas conveying pipe 71, the gas pump is arranged in a gas pump placing area on the other side of the grinding disc shell 1, and a high-pressure gas spray pipe of the high-pressure gas cleaning device 7 is inserted into the discharge hole 12 to output high-pressure gas to clean accumulated materials in the grinding disc shell 1.

In this embodiment, the high-pressure gas removing device 7 is provided with a third locking groove 74, and the high-pressure gas removing device 7 is directly fixed on the outer wall of the discharge hole 12 through the third locking groove 74.

When the first grinding disc 2 and the second grinding disc 3 need to rotate reversely, the air cylinder 61 is not started, the first gear 42 and the fourth gear 22 are respectively connected with the third gear 44 in a meshed mode, the second gear 43 is connected with the fifth gear 32 in a meshed mode, at the moment, the driving motor 41 is started, the first central shaft 21 and the first grinding disc 2 rotate normally, and the second central shaft 31 and the second grinding disc 3 rotate reversely.

When the first grinding disc 2 and the second grinding disc 3 need to rotate in the same direction, the air cylinder 61 is started, the air cylinder 61 pushes the fifth gear 32 to move towards the fourth gear 22, the second clamping block 321 enters the second clamping groove 221, the second compression spring is compressed, meanwhile, the fourth gear 22 and the adjusting rod 212 move towards the connecting rod 211, the first clamping block 2121 slides towards the bottom of the first clamping groove 2111, the first compression spring is compressed, finally, the fifth gear 32 is still fully meshed with the second gear 43, the fourth gear 22 is separated from the third gear 44, the driving motor 41 is started at this time, only the second gear 43 drives the first central shaft 21 and the second central shaft 31 to rotate, and the first grinding disc 2 and the second grinding disc 3 rotate in the same direction. The cylinder 61 acts on the fourth gear 22 through the fifth gear 32, so that the fourth gear 22 is disengaged from the third gear 44, and the first central shaft 21 and the second central shaft 31 are integrated and are driven by the second gear 43 to rotate in the same direction.

When the cylinder 61 is restored, the fourth gear 22 and the fifth gear 32 are restored by the resilient force of the first compression spring and the second compression spring.

The above are only typical examples of the present invention, and besides, the present invention may have other embodiments, and all the technical solutions formed by equivalent substitutions or equivalent changes are within the scope of the present invention as claimed.

Claims

1. The utility model provides a flour mill, includes mill shell (1), first mill (2) and second mill (3), be provided with feed inlet (11) and discharge gate (12) on mill shell (1), first mill (2) with second mill (3) set up in mill shell (1), its characterized in that: a driving device (4) is arranged on one side outside the grinding disc shell (1), and the driving device (4) is used for driving the first grinding disc (2) and the second grinding disc (3) to rotate in opposite directions;

the driving device (4) comprises a driving motor (41), a first gear (42), a second gear (43) and a third gear (44), a first central shaft (21) is arranged on the first grinding disc (2), one end of the first central shaft (21) is fixedly connected with the first grinding disc (2), a first through hole is formed in the first grinding disc (2) and the first central shaft (21), a second central shaft (31) is arranged on the second grinding disc (3), one end of the second central shaft (31) is fixedly connected with the second grinding disc (3), the second central shaft (31) penetrates through the first through hole, a fourth gear (22) is arranged at the other end of the first central shaft (21), a fifth gear (32) is arranged at the other end of the second central shaft (31), and the first gear (42) and the second gear (43) are respectively and fixedly arranged on a driving shaft of the driving motor (41), the first gear (42) is in gear transmission with the fourth gear (22) through the third gear (44), and the second gear (43) is in meshed connection with the fifth gear (32);

the mill further comprises a switching device (6), the switching device (6) being used for switching the first grinding disc (2) and the second grinding disc (3) to rotate in the same direction or in opposite directions;

the switching device (6) comprises an air cylinder (61), the first central shaft (21) comprises a connecting rod (211) and an adjusting rod (212) which are spaced at a certain distance, one end of the connecting rod (211) is fixedly connected with the first grinding disc (2), a first clamping groove (2111) is formed in the other end of the connecting rod (211), a first elastic piece (2112) is filled in the first clamping groove (2111), a first clamping block (2121) which is partially inserted into the first clamping groove (2111) is arranged at one end of the adjusting rod (212), and the other end of the adjusting rod (212) is fixedly connected with the fourth gear (22);

the section of the second central shaft (31) is arranged in a polygonal shape, a second through hole matched with the second central shaft (31) is formed in the center of the fifth gear (32), the fifth gear (32) is connected with the second central shaft (31) in a sliding mode, a second clamping block (321) is arranged on one side wall of the fifth gear (32), a second clamping groove (221) for clamping the second clamping block (321) is formed in the side wall of the fourth gear (22), a second elastic piece (222) is filled in the second clamping groove (221), and a piston rod of the air cylinder (61) abuts against the other side wall of the fifth gear (32);

the cylinder (61) acts on the fourth gear (22) through the fifth gear (32) to enable the fourth gear (22) to be separated from the third gear (44), and the first central shaft (21) and the second central shaft (31) are integrated and are driven by the second gear (43) to rotate in the same direction.

2. A mill according to claim 1, characterized in that: the first elastic member (2112) is a first compression spring, and the second elastic member (222) is a second compression spring.

3. A mill according to claim 1, characterized in that: the width of the second gear (43) is greater than the width of the fifth gear (32).

4. A mill according to claim 1, characterized in that: the other side outside the grinding disc shell (1) is provided with a high-pressure gas cleaning device (7), and the high-pressure gas cleaning device (7) is used for cleaning accumulated materials on the first grinding disc (2) and the second grinding disc (3).

5. A mill according to claim 4, characterized in that: high-pressure gas clearing device (7) include high-pressure gas conveyer pipe (71), high-pressure gas straight spray tube (72) and high-pressure gas oblique spray tube (73), high-pressure gas conveyer pipe (71) are connected with the air pump, the air pump sets up the region of placing of mill shell (1) opposite side, high-pressure gas straight spray tube (72) with high-pressure gas oblique spray tube (73) insert export high-pressure gas in discharge gate (12) clears away long-pending material in mill shell (1).

6. A mill according to claim 5, characterized in that: the high-pressure gas removing device (7) is provided with a third clamping groove (74), and the high-pressure gas removing device (7) is directly fixed on the outer wall of the discharge hole (12) through the third clamping groove (74).