Description of the embodiments
The following describes the embodiments of the present invention in further detail with reference to the drawings.
As shown in fig. 1 to 6, the invention comprises a box body 1, a feed inlet 2 is arranged above the box body 1, a fixed block 3 is arranged in the box body 1, a conical through hole 4 with a big upper part and a small lower part is arranged in the center of the fixed block 3, a rotating shaft 5 which can rotate vertically is arranged in the box body 1, and a conical grinding wheel 6 matched with the conical through hole 4 is arranged at the lower end of the rotating shaft 5; a connecting rod 7 is connected below the grinding wheel 6, the lower end of the connecting rod 7 penetrates through the conical through hole 4, a horizontal rotary table 8 is arranged at the lower end of the connecting rod 7, and a sphere 9 is eccentrically fixed on the upper end surface of the rotary table 8; an inclined baffle plate 22 is arranged between the fixed block 3 and the turntable 8, a filter screen 10 which can rotate and reset is arranged in the center of the baffle plate 22, and the filter screen 10 is sleeved on the connecting rod 7 in a non-contact manner; a driving plate 23 is coaxially fixed on the lower end surface of the filter screen 10, an annular groove 24 matched with the sphere 9 is formed in the lower end surface of the driving plate 23, and a plurality of pulling sheets 25 are uniformly distributed in the annular groove 24;
the baffle 22 is provided with a plurality of vertical guide rods 11, the lower end face of the fixed block 3 is provided with a plurality of blind holes 12 which are in one-to-one correspondence with the guide rods 11, the upper end of each guide rod 11 is arranged in each blind hole 12, the rotary disc 8 drives the sphere 9 to rotate, the sphere 9 can be arranged in the annular groove 24 after rotating, the rotary disc drives the filter screen 10 to rotate through the poking plate 25 and the poking plate 23, the filter screen 10 can be reset after rotating to a certain degree, and meanwhile, the sphere 9 can squeeze the filter screen 10 and the guide rods 11 to move up and down after rotating; the side wall of the box body 1 is provided with a first discharge hole 13 corresponding to the filter screen 10, and the bottom plate of the box body 1 is provided with a second discharge hole 14.
In order to better support the box body 1, a plurality of supporting legs 15 are fixedly connected to the outer edge surface of the box body 1.
In order to make the connecting rod 7, the grinding wheel 6 and the turntable 8 stably rotate, a bearing 16 is sleeved outside the connecting rod 7, and the outer ring of the bearing 16 is fixed with the inner wall of the box body 1 through a plurality of reinforcing ribs 17.
In order to make the filter screen 10 vibrate better, each blind hole 12 is provided with a compression spring 18.
In order to prevent the filter screen 10 from falling down, a plurality of limiting blocks 19 positioned below the baffle 22 are arranged on the inner wall of the box body 1, and the limiting blocks 19 can be in contact with the baffle 22.
In order to enable the powder to descend better for grinding, the rotating shaft 5 is sleeved with a conical shell 20 with a small upper part and a large lower part, the lower end of the shell 20 is connected with the upper end of the grinding wheel 6, and meanwhile, the diameter of the lower end of the shell 20 is larger than or equal to that of the upper end of the grinding wheel 6.
In order to make the rotating shaft 5 rotate, the box body 1 is provided with a motor 21, and the motor 21 is matched with the rotating shaft 5 through a bevel gear set or a speed reducing mechanism.
In order to realize the installation and use of the filter screen 10, the center of the baffle 22 is a center hole, the filter screen 10 is arranged in the center hole, a plurality of concave clamping blocks 26 are uniformly distributed on the periphery of the edge of the filter screen 10, and the opening sides of the clamping blocks 26 are clamped on the baffle 22, so that the filter screen 10 can rotate along the baffle 22.
In order to realize the resetting of the filter screen 10, a plurality of tension springs 27 are uniformly distributed on the circumference of the filter screen 10, and the other ends of the tension springs 27 are fixed on the baffle 22.
In order to facilitate the installation of the driving plate and increase the strength of the filter screen 10, a plurality of reinforcing ribs are fixed on the filter screen 10.
When the rotary grinding device is used, firstly, the motor 21 is started, at the moment, under the action of the bevel gear, the rotating shaft 5 can rotate, after the motor 21 rotates, the grinding wheel 6 and the connecting rod 7 are driven to rotate, and the rotating disc 8 at the lower end of the connecting rod 7 is driven to rotate by the rotation of the connecting rod 7; when the turntable 8 rotates, the filter screen 10, the baffle 22 and the driving plate 23 are all inclined (the embodiment uses the filter screen 10 as an example, the left and right sides are low), so that the driving plate 23 and the filter screen 10 can be driven to move up and down when the ball 9 on the turntable 8 rotates along with the turntable 8; the method comprises the following steps: when the ball 9 rotates from right to left, the screen 10 will drop (under the dual action of gravity and the compression spring 18) due to the high left end of the dial 23; similarly, when the ball 9 rotates from left to right, the screen 10 moves upward.
Meanwhile, as the annular groove 24 is arranged on the lower end surface of the driving plate 23, when the ball 9 moves from left to right, the ball 9 is placed in the annular groove 24, and the driving plate 23 and the filter screen 10 are pushed to rotate under the blocking action of the pulling plate 25, the baffle 22 is not rotated at the moment, the tension spring 27 is stretched, when the tension spring 27 receives a large enough force, the filter screen 10 cannot rotate at the moment, the ball 9 continues to rotate, the filter screen 10 slightly moves upwards, the ball 9 passes through the pulling plate 25, and then the filter screen 10 reversely rotates for a certain distance under the action of the tension spring 27; then the ball 9 will contact the next pulling piece 25, the filter screen 10 will be driven to rotate a small distance first, then "jump up", rotate in reverse direction, and circulate in this way; the material can be fully screened by the abrupt reciprocating acceleration of the filter screen 10 and under the combined motion conditions of overall up-and-down movement, rapid 'jumping-up', and the like.
When needs are ground, at this moment at first with the powder from feed inlet 2 to the inside of box 1, because feed inlet 2 is located the top of fixed block 3 this moment, consequently the powder can go on in the toper through-hole 4, simultaneously because be equipped with rotatable toper grinding wheel 6 in the toper through-hole 4, big-end-up, consequently only less clearance between the inner wall of grinding wheel 6 and toper through-hole 4, the powder can leave in the clearance under the effect of gravity to grind under the effect of grinding wheel 6.
The ground powder falls from the lower end of the conical through hole 4 and falls on the filter screen 10, and because the filter screen 10 is in a vibration state of reciprocating up and down and accompanying rotation, part of the powder passes through the filter screen 10 and comes out from the second discharging hole 14, and the other part of the powder with larger particles rolls downwards along the surface of the filter screen 10 and comes out from the first discharging hole 13 on the right side of the filter screen 10 under the vibration action of the filter screen 10.
Through the process, the powder with larger particles, which is discharged from the first discharge hole 13, can be gathered and then manually added into the feed inlet 2, so that further grinding can be performed, and the material distribution can be sufficiently ground.
When the device grinds the material that comes out from first discharge gate 13, because the material at this moment is not very thick, consequently can accelerate motor 21's rotational speed to improve the efficiency of grinding, simultaneously when improving the grinding rotational speed, the rotational speed of carousel 8 also can promote thereupon, thereby makes the vibrations frequency of filter screen 10 improve, has improved the speed of screening in step.
In this device, owing to the driver plate is the slope form and arranges, therefore when the width of ring channel is less than the spheroidal diameter, spheroidal upper end can pass through the edge of extrusion ring channel this moment, makes the spheroid at pivoted in-process, can extrude the driver plate, makes the driver plate whole appear reciprocating motion from top to bottom, and inside the ring channel can be arranged in to spheroidal part simultaneously, and consequently the spheroid can stir the plectrum, makes the driver plate rotate.
According to the invention, through the conical through holes 4 and the grinding wheels 6, the powder can be fully ground, meanwhile, the connecting rods 7 are arranged at the lower ends of the grinding wheels 6, so that the power of the grinding wheels 6 can be transmitted to the rotary table 8, the rotary table 8 rotates, the filter screen 10 is obliquely arranged, the up-and-down reciprocating vibration of the filter screen 10 is realized, the powder can be rapidly screened, the accumulation is avoided, meanwhile, larger particles can be screened to the first discharge port 13 in the inclined state of the filter screen 10, the particles can be conveniently collected, and the particles are led in from the feed port 2 again for secondary grinding.
Compared with the traditional vibrating device adopting rotation, the screening mechanism of the device is simple in structure, can be completed by only needing a simple rotary table 8 and a sphere 9 and matching with the driving plate 23 and the arc-shaped groove, does not need an additional power source, directly adopts grinding power, can enable the filter screen 10 to move up and down in a fluctuating manner during vibration, and simultaneously 'jump up' and simultaneously accompanies rapid reciprocating rotation, so that material screening can be better, and meanwhile, due to the arrangement of the sphere 9, the sphere 9 can easily pass over the shifting plate 25, and reverse rotation of the filter screen 10 is realized.
The device can finish two functions of grinding and vibration only by one motor, and simultaneously can synchronously adjust the vibration speed when adjusting the grinding speed, thereby improving the working efficiency and avoiding the need of an additional control system and a motor to control a vibration mechanism; compared with the prior art, one motor is saved, one set of control system is saved, and the cost is greatly reduced.
The invention has simple use, can fully grind the powder, can carry out simple screening, is beneficial to multiple grinding, improves the fine degree of the powder, and further improves the product quality of the paint.