CN109174334B

CN109174334B - Sand mill

Info

Publication number: CN109174334B
Application number: CN201810794401.7A
Authority: CN
Inventors: 谭贺洵; 汪洋; 胡海宏
Original assignee: Yiwu Yanchuang Industrial Design Co Ltd
Current assignee: Yiwu yanchuang Industrial Design Co., Ltd
Priority date: 2018-07-19
Filing date: 2018-07-19
Publication date: 2020-10-27
Anticipated expiration: 2038-07-19
Also published as: CN109174334A

Abstract

The invention discloses a sand mill, which comprises a machine body, wherein a feed inlet is formed in the machine body, a discharge outlet is formed in the bottom of the machine body, a dispersion shaft is arranged in the machine body, a dispersion disc is arranged on the dispersion shaft, a motor is arranged on a top plate of the machine body to drive the dispersion shaft, a movable filter disc is arranged below the dispersion shaft in the machine body, at least two movable filter discs are arranged vertically, a cleaning cavity is arranged outside the machine body, the number of the through holes corresponding to the number of the movable filter discs is arranged on the first side surface, and the movable filter discs can enter the cleaning cavity through the through holes. At least two movable filter discs can be used alternately, so that the sand mill can work uninterruptedly even if the movable filter discs are blocked, thereby ensuring the discharging speed and the production efficiency.

Description

Sand mill

Technical Field

The invention belongs to the field of chemical material production equipment, and particularly relates to a sand mill.

Background

The sand mill is used for wet grinding of chemical coatings, particles need to be filtered by a filter screen during discharging, and the ground and dispersed coating powder is easy to generate re-agglomeration phenomenon due to the action of van watt force, so that the discharging filter screen is easy to block, the discharging speed is influenced, and the production efficiency is reduced.

Disclosure of Invention

The invention aims to provide a sand mill, which aims to solve the technical problem that the discharge speed and the production efficiency are influenced due to the blockage of a filter screen.

In order to solve the problems, the invention provides a sand mill which comprises a mill body, wherein a feed inlet is formed in the mill body, a discharge outlet is formed in the bottom of the mill body, a dispersion shaft is arranged in the mill body, a dispersion disc is arranged on the dispersion shaft, a motor is arranged on a top plate of the mill body to drive the dispersion shaft, a movable filter disc is arranged below the dispersion shaft in the mill body, at least two movable filter discs are arranged vertically, the mill body comprises a first side face, a cleaning cavity is arranged outside the first side face, the number of the first side face is corresponding to the number of the movable filter discs, and the movable filter discs can enter the cleaning cavity through the through holes.

Furthermore, one side of the through opening, which is close to the cleaning cavity, is fixedly provided with an elastic isolation device.

Furthermore, the elastic isolation device comprises a contact baffle, a sleeve and a spring which are oppositely arranged at the upper part and the lower part of the through opening in pairs, and the contact baffle and the spring are arranged in the sleeve; (ii) a One side of the sleeve is provided with an opening, and the other side of the sleeve is provided with a bottom plate; one side of the contact baffle is connected with one end of the spring which is vertically arranged, and the other side of the contact baffle is of a convex arc structure; the other end of the spring is fixed on a bottom plate in the sleeve, the arc structure of the contact baffle protrudes relative to the opening of the sleeve, and the sleeve is fixed outside the first side face; every two opposite contact baffle plates can contact with each other, and the contact positions of every two contact baffle plates are on the horizontal middle line of the through hole.

Furthermore, the thickness of two side edges of the movable filter disc, which can be contacted with the elastic isolation device in the moving process, is gradually reduced.

Furthermore, a plurality of air nozzles are arranged at the top part in the cleaning cavity and connected with a compressed air device.

Furthermore, the number of the movable filter discs is two, a movable brush is arranged in the cleaning cavity and is located between the two movable filter discs in the vertical direction, the top of the movable brush can be in contact with the movable filter disc entering the cleaning cavity and located above the movable brush, and the bottom of the movable brush can be in contact with the movable filter disc entering the cleaning cavity and located below the movable brush.

Furthermore, the longitudinal direction of the movable brush is perpendicular to the movement direction of the movable filter disc, a telescopic oil cylinder is arranged outside one side, far away from the first side face, of the cleaning cavity, and a telescopic rod of the telescopic oil cylinder extends into the cleaning cavity and is perpendicularly connected with the movable brush.

Furthermore, a second side surface and a third side surface are arranged on the machine body and are connected with the first side surface, and the second side surface and the third side surface are arranged oppositely; the through openings on the first side face extend to the second side face and the third side face to be connected into a U-shaped notch, and the movable filter disc frame is arranged on the U-shaped notch.

Furthermore, the movable filter disc is provided with teeth on the side edges which are respectively on the same side with the second side surface and the third side surface, the teeth are respectively protruded relative to the second side surface and the third side surface, and the outer sides of the second side surface and the third side surface are respectively provided with a first gear which is meshed with the teeth of the movable filter disc.

Furthermore, the notches on the second side surface and the third side surface respectively extend and penetrate towards the corresponding side surfaces in the cleaning cavity, so that the movable filter disc can be erected in the cleaning cavity; and a second gear is arranged on the outer side surface of the cleaning cavity, which is on the same side with the second side surface and the third side surface, and the second gear can be meshed with the teeth of the movable filter disc.

One of the technical schemes has the following advantages: the invention provides a sand mill which is provided with at least two movable filter discs, so that the at least two movable filter discs can be alternately used, when one movable filter disc is blocked, the other movable filter disc is used, and the blocked movable filter disc is moved into a cleaning cavity to be cleaned for standby.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is an enlarged view taken at A in FIG. 1;

fig. 3 is a top view of two movable filter disks in cooperation with a first gear and a second gear in accordance with an embodiment of the present invention.

Reference is made to the accompanying drawings in which:

1-a fuselage; 101-a feed inlet; 102-a discharge port; 103-dispersion axis; 104-a dispersion tray;

105-an electric machine; 106-a first side; 107-ports; 2-a movable filter disc; 3-cleaning the cavity;

301-an air nozzle; 4-elastic isolation means; 401-a contact baffle; 402-a sleeve; 403-a spring;

5-a movable brush; 6-telescopic oil cylinder; 7-teeth; 8-a first gear; 9-second gear.

Detailed Description

Exemplary embodiments that embody features and advantages of the invention are described in detail below. It is to be understood that the invention is capable of other and different embodiments and its several details are capable of modification without departing from the scope of the invention, and that the description and drawings are to be regarded as illustrative in nature and not as restrictive.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but it is not intended to indicate or imply that the device or component referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limiting the present patent, and the specific meaning of the terms described above will be understood by those of ordinary skill in the art according to the specific circumstances.

As shown in fig. 1, an embodiment of the present invention provides a sand mill, which includes a machine body 1, wherein a feed inlet 101 is arranged on the machine body 1, a discharge outlet 102 is arranged at the bottom of the machine body 1, a dispersion shaft 103 is arranged inside the machine body 1, a dispersion disc 104 is arranged on the dispersion shaft 103, a motor 105 is arranged on a top plate of the machine body 1 to drive the dispersion shaft 103, a movable filter disc 2 is arranged below the dispersion shaft 103 in the machine body 1, at least two movable filter discs 2 are vertically arranged, the machine body 1 includes a first side surface 106, a cleaning cavity 3 is arranged outside the first side surface 106, through holes 107 corresponding to the number of the movable filter discs 2 are arranged on the first side surface 106, and the movable filter discs 2 can enter the cleaning cavity 3 through the through holes 107. At least two movable filter discs 2 are provided so that the at least two movable filter discs 2 can be used alternately, when one of the movable filter discs 2 is clogged, the other movable filter disc 2 is used, and the clogged movable filter disc 2 is moved into the cleaning chamber 3 to be cleaned for standby. Therefore, even if the movable filter disc is blocked, the sand mill can continuously work, thereby ensuring the discharging speed and the production efficiency.

Preferably, an elastic isolation device 4 is fixedly arranged on one side of the through opening 107 close to the cleaning cavity 3. So as to isolate the cleaning cavity 3 to a certain extent and prevent a large amount of raw materials from entering the cleaning cavity 3.

Preferably, as shown in fig. 2, which is an enlarged view of a in fig. 1, the elastic isolation device 4 includes two contact baffles 401, a sleeve 402, and a spring 403, which are arranged opposite to each other at the top and bottom of the through hole, and the contact baffles 401 and the spring 403 are arranged in the sleeve 402; an opening is formed in one side of the sleeve 402, and a bottom plate is arranged on the other side of the sleeve; one side of the contact baffle 401 is connected with one end of the spring 403 which is vertically arranged, and the other side of the contact baffle 401 is of a convex arc structure; the other end of the spring 403 is fixed on the bottom plate in the sleeve 402, the arc structure of the contact baffle 401 protrudes relative to the opening of the sleeve 402, and the side wall of the sleeve 402 is fixed outside the first side surface 106; two opposite contact baffles 401 can contact each other, and the contact positions of two contact baffles 401 are on the horizontal middle line of the through opening 107. Because the number of the movable filter discs 2 is at least two, the corresponding through holes 107 are also at least two and are arranged up and down on the first side surface 106, wherein two contact baffle plates 401 are arranged on the outer side of the first side surface 106 between two adjacent through holes, and the two contact baffle plates 401 are back to back with each other, that is, the two contact baffle plates 401 and the other two contact baffle plates 401 respectively form a structure which is opposite up and down. During the moving process, the movable filter disc 2 firstly contacts with the circular arc structures on the two contact baffle plates 401 arranged opposite to each other, the circular arc structures are arranged to push the movable filter disc 2 away from the contact baffle plates 401, even if the contact baffle plates above the movable filter disc move upwards in the vertical direction, the contact baffle plates below the movable filter disc move downwards in the vertical direction, as shown in fig. 2, the circular arc structures of the contact baffle plates 401 in two-to-two opposite contact are protruded relative to the sleeve 402, and meanwhile, the other sides of the contact baffle plates 401 are partially positioned in the sleeve 402, so that the contact baffle plates 401 are limited to move vertically, the contact baffle plates 401 are prevented from following the movable filter disc 2 to move towards the cleaning cavity 3, and the stability of the contact baffle plates 401 and the springs 403 is ensured, thereby ensuring the stability of the barrier. And after the movable filter disc 2 completely enters the cleaning cavity 3, the two opposite contact baffle plates are reset under the action of the spring to keep a contact state so as to continuously play an isolation role. Preferably, the distance between the sleeves 402, opposite to each other in pairs, is greater than the thickness of the movable filter disc 2, so as to ensure that the movable filter disc 2 can pass into the cleaning chamber 3 smoothly. The through opening 107, the touch screen 401 and the sleeves 402 all extend horizontally along a first side, wherein the spring 403 in each sleeve 402 may be a set of several springs 403 parallel to each other to provide sufficient spring force to the touch screen 401. Preferably, the thickness of the two sides of the movable filter disc 2, which can contact the elastic isolation device 4 during the movement, is gradually reduced. This arrangement facilitates a better fit of the movable filter disc 2 with the arc formation on the touch screen 401 to open the touch screen 401.

Preferably, a plurality of air nozzles 301 are distributed on the top of the cleaning cavity 3, and the air nozzles 301 are connected with a compressed air device. The purpose of cleaning the powder on the movable filter disc is achieved by arranging the air nozzle to perform high-pressure air injection on the movable filter disc 2.

Preferably, in one embodiment, the number of the movable filter discs 2 is two, the cleaning chamber 3 is provided with a movable brush 5, the movable brush 5 is located between the two movable filter discs 2 in the vertical direction, the top of the movable brush 5 can be in contact with the movable filter disc 2 entering the cleaning chamber 3 and located above the movable brush 5, and the bottom of the movable brush 5 can be in contact with the movable filter disc 2 entering the cleaning chamber 3 and located below the movable brush 5. The movable brush 5 can clean the lower surface of the movable filter disc 2 disposed above the movable brush 5, or clean the upper surface of the movable filter disc 2 disposed below the movable brush 5. In this embodiment, the movable brush 5 cooperates with the air nozzle 301 to clean the movable filter disc 3, so as to achieve a more significant cleaning effect.

Of course, in other embodiments, if there are more than two movable filter discs 2, at least one movable brush 5 is disposed between two adjacent movable filter discs 2, so that the movable brush 5 can brush the upper or lower surfaces of all the movable filter discs 2, corresponding to increasing the number of the movable brushes 5. The movable brush 5 can span the entire width of the movable filter disc 2 to enable brushing of the entire movable filter disc 2.

Preferably, the longitudinal direction of the movable brush 5 is perpendicular to the moving direction of the movable filter disc 2, a telescopic oil cylinder 6 is arranged outside one side, far away from the first side face, of the cleaning cavity 3, and a telescopic rod of the telescopic oil cylinder 6 extends into the cleaning cavity 3 and is perpendicularly connected with the movable brush 5. The movable brush 5 is driven by the telescopic oil cylinder 6 to move back and forth to complete the cleaning of the movable filter disc 2. When a plurality of movable brushes 5 are arranged, each movable brush 5 is connected with a telescopic rod corresponding to a telescopic oil cylinder 6.

Preferably, a second side surface and a third side surface are arranged on the machine body 1 and are both connected with the first side surface, and the second side surface and the third side surface are arranged oppositely; the through openings on the first side face extend to the second side face and the third side face to be connected into a U-shaped notch, and the movable filter disc 2 is erected on the U-shaped notch.

Preferably, as shown in fig. 3, the two movable filter discs are matched with a first gear and a second gear in a plan view, teeth 7 are respectively arranged on the side edges of the movable filter discs 2 on the same side as the second side surface and the third side surface, the teeth 7 respectively protrude relative to the second side surface and the third side surface, and first gears 8 meshed with the teeth 7 of the movable filter discs 2 are respectively arranged on the outer sides of the second side surface and the third side surface. Said first gear wheel 8 cooperates with said teeth 7 of said movable filter disc 2 to effect the movement of the movable filter disc 2. Preferably, the first gear 8 is disposed at an end adjacent to the first side 106.

Preferably, the notches on the second side surface and the third side surface extend through to the corresponding side surfaces in the cleaning cavity 3 respectively, so that the movable filter disc can be erected in the cleaning cavity 3; and a second gear 9 is arranged on the outer side surface of the cleaning cavity 3, which is on the same side with the second side surface and the third side surface, and the second gear 9 can be meshed with the teeth 7 of the movable filter disc 2. The second gear 9 engages the first gear 8, and when part of the movable filter disc 2 enters the cleaning chamber 3, the second gear 9 engages to move the movable filter disc 2 further into the cleaning chamber 3. When there are two movable filter discs, preferably four first gears 8 are provided, which cooperate two by two to move one movable filter disc 2. When there are two movable filter discs 2, preferably four second gears 9, which cooperate two by two to move one movable filter disc, and so on. The driving mechanism is arranged to respectively drive and control the rotation of the first gear 8 and the second gear 9, and the moving position and the moving direction of the movable filter disc can be controlled through the forward rotation or the reverse rotation of the first gear 8 and the second gear 9.

Preferably, the machine body 1 and the cleaning cavity 3 are both provided with enclosing plates to cover the first gear 8, the second gear 9, the machine body 1 and the gaps in the cleaning cavity 3. Thereby ensuring the tightness of the body 1 and the cleaning chamber 3.

The invention provides a grinder provided with at least two movable filter discs 2, so that the at least two movable filter discs 2 can be used alternately, when one of the movable filter discs 2 is blocked, the other movable filter disc 2 is used, and the blocked movable filter disc 2 is moved into a cleaning chamber 3 to be cleaned for standby. The movable filter disc 2 entering the cleaning chamber 3 is cleaned by providing the air nozzle 301 and the brush 5, respectively, so that the movable filter disc 2 is ready for use. The movement of the movable filter disc 2, i.e. the movement of the movable filter disc 2 from the body 1 to the cleaning chamber 3 or from the cleaning chamber 3 to the body 1, is achieved by providing teeth 7 on the movable filter disc and a first gear 8 and a second gear 9 cooperating with the teeth 7. Therefore, when the movable filter disc is blocked, the sand mill is provided with the clean standby movable filter disc 2, so that the continuous work of the mill is ensured, and the discharging speed and the production efficiency are ensured.

It should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. The utility model provides a sand mill, includes fuselage (1), be equipped with feed inlet (101) on fuselage (1), fuselage (1) bottom is equipped with discharge gate (102), fuselage (1) inside is equipped with dispersion axle (103), be equipped with dispersion impeller (104) on dispersion axle (103), be provided with motor (105) drive on the roof of fuselage (1) dispersion axle (103), its characterized in that: a movable filter disc (2) is arranged below the dispersion shaft (103) in the machine body (1), at least two movable filter discs (2) are arranged vertically, the machine body (1) comprises a first side surface (106), a cleaning cavity (3) is arranged outside the first side surface (106), through openings (107) corresponding to the number of the movable filter discs (2) are arranged on the first side surface (106), and the movable filter discs (2) can enter the cleaning cavity (3) through the through openings (107); an elastic isolation device (4) is fixedly arranged on one side, close to the cleaning cavity (3), of the through hole (107), the elastic isolation device (4) comprises two contact baffle plates (401), a sleeve (402) and a spring (403), the two contact baffle plates (401) and the spring (403) are arranged in the sleeve (402) in an up-and-down opposite mode on the through hole; one side of the sleeve is provided with an opening, and the other side of the sleeve is provided with a bottom plate; one side of the contact baffle (401) is connected with one end of the spring (403) which is vertically arranged, and the other side of the contact baffle (401) is of a convex arc structure; the other end of the spring (403) is fixed on a bottom plate in the sleeve (402), the circular arc structure of the contact baffle (401) is protruded relative to the opening of the sleeve (402), and the sleeve (402) is fixed outside the first side surface (106); every two opposite contact baffle plates (401) can be contacted with each other, and the contact positions of every two contact baffle plates (401) are on the horizontal middle line of the through hole (107);

the through opening (107), the contact baffle (401) and the sleeves (402) extend horizontally along a first side surface, a plurality of springs (403) in each sleeve (402) are parallel to one another, and the thickness of two side edges of the movable filter disc (2) which are in contact with the elastic isolation device (4) is gradually reduced in the moving process;

a second side face and a third side face which are connected with the first side face (106) are arranged on the machine body (1), the second side face and the third side face are arranged oppositely, the through hole (107) in the first side face (106) extends to the second side face and the third side face to be connected into a U-shaped notch, and the movable filter disc (2) is erected on the U-shaped notch;

teeth (7) are arranged on the side edges, on the same side with the second side surface and the third side surface, of the movable filter disc (2), the teeth (7) protrude relative to the second side surface and the third side surface respectively, first gears (8) are arranged on the outer sides of the second side surface and the third side surface respectively, and the first gears (8) are meshed with the corresponding teeth (7);

the gaps on the second side face and the third side face extend to corresponding side faces in the cleaning cavity (3) to be communicated, so that the movable filter disc can be erected in the cleaning cavity (3), second gears (9) are arranged on the outer side faces of the cleaning cavity (3) and the outer side faces of the cleaning cavity and the third side faces are located on the same side, and the second.

2. A sand mill according to claim 1, wherein: the top in clean chamber (3) distributes and is provided with a plurality of air nozzle (301), compressed air device is connected in air nozzle (301).

3. A sand mill according to claim 1, wherein: the cleaning device is characterized in that the number of the movable filter discs (2) is two, movable brushes (5) are arranged in the cleaning cavity (3), the movable brushes (5) are located between the two movable filter discs (2) in the vertical direction, the tops of the movable brushes (5) can be in contact with the movable filter discs (2) entering the cleaning cavity (3) and located above the movable brushes (5), and the bottoms of the movable brushes (5) can be in contact with the movable filter discs (2) entering the cleaning cavity (3) and located below the movable brushes (5).

4. A sand mill according to claim 3, wherein: the vertical with the direction of motion of portable filter disc (2) of portable brush (5) is perpendicular, keep away from on clean chamber (3) one side of first side is provided with flexible hydro-cylinder (6) outward, the telescopic link of flexible hydro-cylinder (6) stretches into connect perpendicularly in clean chamber (3) portable brush (5).